RU197675U1 - AEROACTIVATOR - Google Patents

Abstract

The utility model relates to devices for grinding and activation of dry building mixtures and materials used in concrete for construction, restoration and reconstruction of buildings and structures. The aeroactivator consists of a cylindrical tank, a vertical shaft of rotation mounted on remote bearings, disks with triangular openings, vertical rods and a cooling system. 2 s.p. f-ly, 2 ill.

Description

The utility model relates to devices for grinding and activating dry building mixtures and materials used in concrete for construction, restoration and reconstruction of buildings and structures.

A device [1] is known, which includes a cylindrical container with a vertical rotation shaft mounted on it and a disk with triangular openings, vertical rods and discharge vanes rigidly fixed perpendicular to the shaft. The activator is equipped with a four-bladed propeller for creating air flows mounted on a vertical shaft mounted on remote bearings mounted on the upper and lower lids of the tank.

Cement aeroactivator [2] is also known, including a cylindrical container, a vertical shaft of rotation mounted on remote bearings, disks with triangular openings, vertical rods and two sickle-shaped scrapers, bearing cooling devices in the form of directional propellers mounted on the rotor shaft, rods located above the level of the airscrew.

The disadvantages of using these activators are the irrevocable loss of heat generated by impact grinding of particles of materials by vertical rods and the side surfaces of the holes of the disks inside the tank. At the same time, there is a low thermal efficiency of the activator as a whole due to losses in the external environment and, most importantly, heat transfer through the rotation shaft to the bearings. In addition, despite the operation of directional propellers, the running time of bearings sharply decreases with increasing lubricant temperature.

The utility model is based on the task of increasing the thermal activity of aeroactivator of cement by efficiently using the generated heat of the installation to increase the temperature of the solubilization of additives in the water dispenser in order to shorten the set time of concrete strength and also reduce the temperature effect on the bearings.

The problem is solved in that the aeroactivator consists of a cylindrical tank, a vertical shaft of rotation mounted on remote bearings, disks with triangular openings, vertical rods and a cooling system. At the same time, a pump is installed on its bed in the cooling system, which is connected by an inlet to the coolant pipe under the casing framing the casing from its outer side, and by an outlet to the pipeline connecting to the coil mounted inside the water dispenser for heating water. Its body and coil are made of material with high thermal conductivity, and the casing and piping surrounding it are made of material with low thermal conductivity.

The aeroactivator is functionally made in the form of a technological module that works on a closed principle, allowing you to use it both independently and as part of concrete-mortar equipment on any type of transport.

The essence of the utility model is illustrated by drawings, where in FIG. 1 shows an aeroactivator module as part of a concrete mixing equipment unit (side view), FIG. 2 is a longitudinal sectional view of an aeroactivator explaining the operation of a cooling system.

The aeroactivator module 1 is installed in the block 2 of concrete equipment above the mixer 3, to which a water dispenser 4 with a coil 5 is connected. The aeroactivator of module 1 consists of a casing 6, a vertical shaft 7 with disks 8 and vertical rods 9. The casing 6 is framed by a casing 10, under which pipe 11 is mounted. A module 12 is installed on the bed of module 1, which is connected by an inlet to the pipe 11, and by an outlet to a pipe (not shown in the figures) that supplies coolant (such as antifreeze) to the coil 5. The temperature in the aeroactivator is monitored by a sensor 13 .

Equipment module aeroactivator works as follows.

At the construction site, all components, including cement, are loaded into block 2 of concrete-mortar equipment. The dosed components are loaded into the mixer 3. At the same time, part of the cement (about 10%) according to the recipe for the preparation of a certain grade of concrete is activated by passing through the activator located in the aeroactivator module 1. When activated, the cement particles are crushed with heat release when impacted by the edges of the holes in the disks 8 and rods 9. Heat is transferred by the cement particles to the housing 6 and shaft 7. To reduce the negative effect of heat on the activator bearings, it is transferred by moving fluid in the pipe 11, driven by the pump 12, to the coil 5, which heats the mixing water in the dispenser 4. To prevent loss heat to the environment, the casing 10 and the water supply pipe to the coil 5 are made of a material with low thermal conductivity, and for better heat transfer, the housing 6 and the coil 5 are made of a material with high thermal conductivity. To control the temperature in automatic mode, the sensor 13 is activated.

The effectiveness of the proposed design is the beneficial use of heat generated by impact grinding of particles of materials with vertical rods and the side surfaces of the holes of the disks inside the tank. This is done by transferring the heat generated by the coolant supplied by the pump through a pipe framing the housing to a coil mounted inside the water meter. To reduce heat loss, the casing and the coil are made of material with high thermal conductivity, and the casing and piping surrounding it are made of material with low thermal conductivity.

Sources of information

1. Patent for utility model RU No. 866527, IPC B28C 5/16. Activator of dry mixtures // Application No. 2009109137/22 of 03/13/2009. Publ. 09/10/2009. Bull. Number 25.

2. Patent for utility model RU No. 101969, IPC V28C 5/16. Aeroactivator of cement // Application No. 20102929241/03 of 07.15.2010. Publ. 02/10/2011. Bull. Number 4.

Claims (3)

1. Aeroactivator, characterized in that it consists of a cylindrical tank, a vertical shaft of rotation mounted on remote bearings, disks with triangular openings, vertical rods and a cooling system. 2. The aeroactivator according to claim 1, characterized in that a pump is installed on its bed in the cooling system, which is connected by an inlet to the coolant pipe under the casing framing the casing from its outer side, and by an outlet in the pipe connecting to the mounted inside the dispenser water coil designed to heat water. 3. The aeroactivator according to claim 1, characterized in that its body and coil are made of material with high thermal conductivity, and the casing and pipe surrounding it are made of material with low thermal conductivity.

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