SU919893A1 - Apparatus for preparing a solution of chemical additives - Google Patents

Description

(5) DEVICE FOR PREPARING A SOLUTION OF CHEMICAL ADDITIVES

I

The invention relates to the construction, in particular to devices for preparing a solution of chemical additives to concrete mixtures.

Closest to the present invention is a device for preparing a solution of chemical additives, comprising a tank with a level indicator, a paddle stirrer and a mesh container 1 placed in the upper part of the tank.

The disadvantage of this device. it is impossible to provide the required intensity of mixing and dissolution of the material.

The purpose of the invention is to intensify the process of solution preparation.

The goal is achieved by those. that a device for preparing a solution of chemical additives, containing a tank with a level indicator, a paddle stirrer, and a mesh one placed in the upper part of the tank. container, equipped with circulating

a pipeline with a pump and nozzles, and the mesh containers are pyramidal in shape and provided with fender concave plates installed in their cavity, each nozzle being directed onto a corresponding plate.

FIG. 1 shows a device, a sectional view, in FIG. 2 - then on top.

The device contains a tank 1 in which pyramid-shaped containers of grid 2 are installed, each of which has a bent concave plate 3 mounted and a nozzle directed at it, hatches 5 for loading containers, an upper level indicator 6 mounted in the tank, an electric motor. 7 mounted above the lid 8, the vertical pipe 9 on which the control / dark valve 10 located above the valve 11 is placed, the circulation Pipe 12 with a centrifugal pump 1.3 connected to pipe 1 connected to the conical part of the tank 15. from which The discharge pipe 16 exits the grease residues with the valve 17; the device for heating the steam heater 18 with the valve 19 with the device 20 for regulating the position of the steam pipeline valve and the device for determining the temperature, for example, thermometers 21 cleaning grid 22, above which The swarm contains the blades of the agitator 23 and the device 2 for the automatic cog to determine the concentration density of the solution, the branches of the pipelines 25 and 26 with the control valves 27 and 28 and the water pipe 29 with the valve 0. The device operates as follows. When preparing a solution from a bulk chemical additive, the latter is preliminarily metered, and then through hatches 5 it is loaded into containers 2. Then through pipe 29 water is supplied to tank 1 until the upper level indicator 6 is triggered. Simultaneously with the start of filling the tank with water, the valve is automatically closed. tO, opening the valves 27 and 28, turning on the centrifugal pump 13, resulting in

the liquid begins to circulate through the closed pipeline 12, enters the branched branches of the pipeline 25 and 26 and, through the nozzle L, the jet pressure is directed to the bent concave plate 3. which further acquires a circular trajectory. Under the action of the jet head, which is fed through the nozzle t into the container, active mixing and dissolution of the material occurs. In addition, starting from the moment the water supply reservoir is filled with water, the electric motor 7 of the agitator is simultaneously switched on. In order to intensify the mixing and dissolve the solid material of the additive, the direction of rotation of the blade of the agitator 23 has the opposite direction to the movement of the liquid leaving the nozzle kf and the flow of liquid caused by the rotation of the blades of the agitator is directed upwards to the bottom of the pyramid-shaped containers to form an impulsive The nature of the outflow of liquid that passes through the mesh of the container actively dissolves the solid material. To shorten the time, prepare chi solution through valve 19 vapor 9

Voir serves water. Next, the process is similar to the preparation of a solution of solid bulk material. However, the mixing time of two or more liquid fractions is several times less than the dissolution of a solid material.

Claims (1)

The use in the proposed device of pyramid-shaped containers mounted on the agitator of the agitator 3 wires supplies steam to a steam heater 18 equipped with a device for draining condensate. The maintenance of a predetermined temperature of the liquid is carried out by the device 20 for regulating the position of the steam line valve, which is connected by an electrical circuit with the device for determining the temperature. The end of the process of preparing a given solution is fixed automatically by the device to determine the density of the solution, after which the valve 10 is opened, and the valves 27 and 28 are closed and the finished chemical additive solution is fed through line 9 to the flow bin of the concrete mixing compartment for further use. In the event of a malfunction of the device 2k, it can be replaced by a manual ariometer; in this case, the operation of the valves 10, 27 and 28 is performed remotely. The tank 1 is equipped with a removable cleaning screen (filter) and a pipeline 16 for draining insoluble precipitates and a valve 17 When preparing a solution from a liquid chemical additive, first the reservoir serves a dosed amount of the additive, and then into this tank of branched pipelines, each of which is fitted with a nozzle and installed in a container so that the axis of the nozzle is directed to the bent-down concave plate, allows to intensify the process of mixing and dissolving the solid material, thereby increasing the efficiency action of the equipment and reducing the metal intensity at the same performance as that of the known device. Claims An apparatus for preparing a solution of chemical additives, comprising a tank with a level indicator, a paddle stirrer, and. placed in the upper part of the tank mesh container