SU375337A1 - MOBILE INSTALLATION FOR PREPARATION OF CONCRETE AND VOLUME OF SUCH A MIXTURE - Google Patents

Description

one

This invention relates to devices for preparing concrete and the like.

A known mobile unit for the preparation of a concrete and the like mixture, comprising a mixer, placed on the ground, supply tanks for cement, aggregates and water, and a device for dispensing components.

The purpose of the invention is to provide autonomous heating of the components and increase the efficiency of heat utilization.

This is achieved by the fact that it is made with a device for heating the constituent mixtures in the form of aggregates installed inside the supply containers and air intake ducts and louvre walls placed in the casing, and to the casing through an outlet pipe in which an annular chamber is mounted connected to a circulation pump the expense capacity for water, the gas-heated heatgenerator is attached.

FIG. 1 shows the proposed installation in the section; in fig. 2 - the same in terms of; in fig. 3-view of the skip bucket; in fig. 4- device for heating aggregates and water.

The apparatus comprises a rotary mixer 1 for preparing concrete and the like.

mixtures with sectional skip 2, consumable hoppers 3 and 4, aggregates and cement, respectively; metering tanks 5 for water and milk of lime; conveyor 6 for dispensing the finished mixture. All equipment is placed on a closed semi-trailer 7 with an insulated control cabin 8. For loading and dosing of dry components a weight sensor 9, vibrating feeders W, flexible // and Pivoting relative to the horizontal axis are used. The RECALL tray 12 has a spring-loaded latch 13. The skip 2 is made with free-rotating swivels 14. Skip 2 has an inclined screw feeder 15.

For heating the aggregates and water, a gas-powered heat generator 16 is installed with an annular chamber 17 for heating water connected to a circulating pump 18 and a tank 5.

Inside the hoppers of 3 zanelniki installed in the casing 19 intake duct 20 and louvered walls 21.

Installation work.

To prepare the kneading, the mixer 2 skip / is lowered into the lower position with the weight sensor 9 supported. At the same time, the curtains 14 of the skip bucket under the action of their own weight are located across the skip, forming

there are two isolated containers: for aggregates and cement. The flap tray 12 is in the lower position.

First, the screw thread 15 into the front section of skip 2, separated by curtains 14, load a portion of cement through flexible sleeve 11. The weight is fixed by sensor 9. Then load. The weight is fixed by the sensor 9.

In the mixer / metering tanks 5 load the required amount of liquid components (water and milk of lime), then turn on the skip 2 drive. The skip 2 bucket, when it moves up, discards the folding loading tray 12, which is fixed in the upper position by the spring-loaded latch 13.

Skip 2 is first poured into the mixer / cement, and then under the influence of the weight of the aggregates, the shutters 14 are rotated and the aggregates from the lower section of the skip 2 are unloaded into Mixer 1.

After the unloading of dry components into the mixer / skip 2 is lowered to its original position, pressing in the final position on the shank of the latch 13, releasing the latch of the tray 12. Tray l2 is reset to load the new batch of components.

The finished batch from the mixer / is delivered to the consumer by the conveyor 6.

When the unit is operating in the winter, the aggregates are heated by blowing hot gases from the heat generator 16 through the bunker 3,

the output of which is installed annular chamber 17 heating water. For the circulation of water through the chamber 17, a pump 18 is installed between it and the supply tank 5. Hot gases with

temperature 150-180 ° C by heat generator 16 is injected into the aggregate through the louvre walls of 21 bins 3, enclosed by the outer casing 19 and sucked through an air intake box 20 placed inside the bins. which prevents aggregates from spilling through them.

Subject invention

Mobile installation for the preparation of concrete and the like mixture, including placed on the chassis mixer, feed tanks for cement, aggregates and water, a device for dispensing components, characterized in that, in order to provide autonomous heating components and

increasing the efficiency of heat utilization, it is made with a device for heating the constituent mixtures in the form of aggregates installed inside the supply tanks and air intake ducts and louvre walls placed in the casing, and to the casing through an outlet pipe with an annular chamber connected thereto and a circulation pump and flow tank for water attached

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