SU1587018A1 - Surface aerator - Google Patents

Abstract

The invention relates to aeration equipment. The aim of the invention is to reduce material consumption and reduce the size of the aerator, as well as to increase the reliability of the device. The surface aerator contains a pontoon 1 with electric motors 2 disposed thereon, kinematically coupled gear with an aeration rotor 3. The aeration rotor 3 is made in the form of a ring 4 with blades 5. The ring 4 is rigidly connected to a support flange 7 supported on rollers 8. The torques generated by the electric motors 2 are transmitted to the aeration rotor 3. The latter, rotating on the rollers 8, is formed by a ring 4 and vanes 5, recessed into the water, an annular jet directed outward. When this occurs, the saturation of the sprayed water with oxygen in the air. The invention makes it possible to reduce the consumption of materials and the dimensions of the aerator, as well as to exclude the possibility of the glaciation of the pontoon with water spray. 3 hp f-ly, 1 ill.

Description

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The technology is related to aeration equipment and can be used in the systems of biological wastewater treatment in the pulp and paper industry and the food industry, as well as in other branches of the national economy.

The aim of the invention is to reduce material consumption and reduce the size of the aerator, as well as to increase the reliability of the device. I The drawing shows a surface aerator, a longitudinal section. I The aerator consists of a pontoon 1 with () mounted on it by a drive - electric motors 2, kinematically connected by: a gear with an aelectric motor, an ionic rotor 3, the aeration rotor $ is made in the form of a ring 4 (is it flat conical in shape, with blades 5, icecTKO connected with flat ribs 9 with a supporting flange 7. On the inner surface of the flange 7, the teeth are made by continuous cutting or in the form of separate overlap elements, which are meshed with gears | mounted on shafts electric motors | 2, the latter being located equal to circumference of the support flange: 7. On the lower surface of the support flange 7 there is a running dorol (sonic or toroidal form) by means of which the aeration rotor 3 rests on rotating elements - rollers 8, Rollers 8 (conical or spherical forms are installed in apertures along the periphery of the pontoon 1, the form- {mating of the mating surfaces of the flange 7 and the rollers B is selected taking into account the possibility of centering the aeration rotor 3 in the radial direction,

The flange 7 is pressed to the rollers 8 by the weight of the aeration rotor 3. The body of the pontoon 1 is toroidal, the ballast weight 10 is fixed on its axis 9 to the rod 9, and the fastening is fixed with the possibility of axial movement of the cargo 10 together with the rod 9 from upper transport to the lower working position. The ballast weight 10 is designed to give the pontoon greater stability on the melt and is equipped with C5 removable parts 11 worn on the rod 9. through the hole in the central part of the pontoon I. Installing the removable parts 11 is done to select the optimal size of the hollow

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nor aeration rotor 3, corresponding to the maximum performance of the aerator. In order to increase the regulation accuracy by increasing the influence of the weight of the removable parts 11 on the immersion depth of the pontoon 1, the latter is fulfilled with a variable cross-sectional area decreasing upwards. The surface aerator is installed in the reservoir and is kept from rotating by the reactive moment of the aeration rotor 3 by stretching on the crust or racks driven into the bottom or bank (not shown),

The aerator works as follows.

The torque generated by the electric motors 2 is transmitted by a gear transmission to the aeration rotor 3 uniformly. The latter, rotating on the rollers 8, forms a ring 4 and blades 5 recessed into the water, an annular jet directed outward. When this occurs, the splashing of water with oxygen in the air, i.e. aeration The location of the pontoon 1 inside the aeration rotor 3 eliminates the possibility of the pontoon 1 being sprayed with water and deepening the aeration zone. torus 3 with a decrease in performance and an increase in power consumption.

. The invention makes it possible to reduce the consumption of materials and the dimensions of the aerator, as well as to exclude the possibility of the ice of the pontor being sprayed with water.

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Claims (3)

1. Surface aerator, containing a 15N aeration rotor, a pontoon with a drive located on it, kinematically associated with an aeration rotor- pOMj, characterized in that, in order to reduce material consumption and reduce dimensions, as well as increase the reliability, the surface aerator is equipped with a rotary blade. element5 0 five tami located on the periphery of the pontoon, and the aeration rotor is made in the form of a padded pontoon ring with blades, provided with an effective flange, while the supporting flange is mounted on rotating elements, 2. The aerator software PO.P.1, which differs from the fact that the drive is completed in the form of electric motors, is uniformly 51587018 6 located around the circumference of the reference 4. Aerator in PP.1-3, about t l and the flange. Fetching. with the fact that the ballast 3. The aerator in accordance with Claims 1 and 2, the l and -load are provided with removable parts, such that the device equipped with a ballast weight, and a pontoon 5. The aerator according to claims 1-4, tl and -. it is made in the form of a torus, with a ball that says that the pontoon The weight of the load is placed along the axis of the torus with the variable area of the axial movement of the river section, decreasing upwards.