RU2580726C1 - Air cyclone - Google Patents

Abstract

FIELD: treatment.

SUBSTANCE: invention relates to devices for continuous treatment and separation of substances according to specific weights containing in industrial, household and other exhaust gases, and can be used in chemical, food and other industries, as well as in municipal services when processing air media of treatment facilities. Air cyclone for air media, containing fine solid fractions, includes tapered cylinder casing with tangential feed, drain and sand-containing branch pipes. Inside the body along the central axis there is a discharge unit of electrical-ozonizing device. Cross section area of air cyclone housing and discharge unit are made in the ratio of 1/(0.5÷0.7), providing resistance to air flow, which at appropriate pressure of air supply ensures the possibility of creation of stable turbulence.

EFFECT: high quality, as well as more intense processing due to application of high-efficiency continuous technology allowing to let air flow in the device at the rate of 1 5/10-3 5/10 m/s depending on structural-technological features.

1 cl, 1 dwg

Description

The invention relates to devices for continuous processing and separation by specific gravity of substances in industrial, domestic and other exhaust gases, and can find application in chemical, energy, food and other industries, as well as in public utilities in the treatment of air of treatment facilities .

Known hydrocyclone containing a cylindrical conical housing with a tangential inlet, drain and sand nozzles, in which in the conical part, one above the other, in height, ejector nozzles are installed tangentially to the surface of the cone and at an angle to its generatrix (a. USSR USSR No. 1132985 , MKI V04C 5/16, BI No. 1, 1985).

The disadvantage of this hydrocyclone is that it does not provide any effect on the bacteria contained in the treated medium, and the lack of the ability to eliminate odors.

A hydrocyclone is known, including a cylindrical conical housing with a tangential inlet, drain and sand nozzles, a bactericidal lamp in an airtight protective cover is installed along its central axis in the internal flow, for disinfecting effects on the medium being treated (RF patent No. 22155917, B04C 11/00, BI. No. 31.10.11.2003).

The disadvantage of this hydrocyclone is that in the case of using this device for the treatment of air, there is a lack of bactericidal effect due to the short period of processing time, in addition, the inability to eliminate odors.

The technical result is to improve the quality, as well as the intensification of the processing process through the use of high-performance continuous technology, allowing to pass the air flow in the apparatus at a speed of 1.5 to 3.5 m / s, depending on the design and technological features, while the diameters of the apparatus can be from 200 mm to 3000 mm.

The technical result is achieved by the fact that in an aero-cyclone for air media containing a fine solid fraction, including a cylindrical conical housing with a tangential feed, drain and sand nozzles, according to the invention, a discharge unit of an electro-zoning device is installed along the central axis of the housing, while the cross-sectional area of the cylindrical conical housing of the aero cyclone and the discharge block are made in the ratio 1 / (0.5 ÷ 0.7), which creates resistance to the air flow, allowing at the appropriate supply pressure in air provide the ability to create sustained turbulence.

The novelty of the claimed device lies in the fact that due to the presence of discharge blocks of ozonizing devices and design features, an air flow rate of from 1.5 to 3.5 m / s is provided, which creates stable turbulence of air movement, which affects the quality of processing, as well as the fact that when said ambient air flow velocities in the device is formed in the turbulent regime steady quadratic resistance zone and occur naturally "drawdown" ozone even at high concentrations (up to 2 mg / m ³⁾ in a total of eme, and he will be safe at the exit of the machine to others, and maximum disinfection effect.

A comparative analysis of the inventive aero cyclone with the prototype shows that the installation of an electric zoning device discharge block in an aero cyclone will provide bactericidal treatment and air degassing, while any inclusions with a specific gravity greater than air are separated in the aero cyclone. Moreover, the use of O ₃ to eliminate odors, for example:

1. Acetone

C ₃ H ₆ O + 8O ₃ → 3CO ₂ + 3H ₂ O + 8O ₂

2. Benzene

C ₃ H ₆ + 11O ₃ → 6CO ₂ + 3H ₂ O + 11O ₃

3. Ammonia

2NH ₃ + 3O ₃ → N ₂ + 3H ₂ O + 3O ₂

will make it possible to effectively eliminate foul-smelling chemical elements. In addition, all these processes will be carried out continuously, and the air circulating at high speeds will be simultaneously treated with ozone and cool the discharge devices. The use of the principle of action of the aerocycloon will make it possible to increase the specific ozone load per unit volume of the treated air mass due to the fact that the residence time of the processed mass in the apparatus is significant, since the flow moves continuously, circulating first in one direction and then in the opposite direction have turbulent. During a stay in a degassing device for processing air containing small solid fractions, at an air flow rate in the range from 1.5 to 3.5 m / s, ozone will have time to act on the treated air in the required volume to obtain the maximum disinfecting effect and if possible, reduce the concentration to 0.1 mg / m ³ and will be safe at the outlet of the apparatus. Thus, in accordance with the foregoing, the proposed aero cyclone for air environments containing a fine solid fraction meets the criterion of "inventive step".

The invention is illustrated in the drawing, in FIG. 1 shows a general view of an aero cyclone for air environments containing small solid inclusions fractions of less than 0.1 mm, containing foul smelling gases.

Aero cyclone for air environments containing small solid inclusions fractions of less than 0.1 mm, containing odorous gases, includes: a cylindrical housing 1, which is tangentially connected to the supply pipe 2, on the central axis of the device drain pipe 3 is located on one side, and on the opposite side - sand pipe 4. In the housing on the central axis of the installed discharge block of the ozonizer 5 (see Fig. 1). The cross-sectional area of the cylinder-conical body of the aero cyclone and the discharge block is made in the ratio 1 / (0.5 ÷ 0.7), which creates resistance to the air flow and pressure loss on the local resistance of about 20-40 Pa, at an air flow speed of 1.5-3, 5 m / s, which makes it possible to create stable turbulence at the appropriate air supply pressure, because at various inlet pressures and resistance to air flow, its speed inside the device will vary from 1.5 to 3.5 m / s.

Aero cyclone for air containing a fine solid fraction works as follows: the processed air is supplied under pressure obtained by a mechanical drive (fan), or by vacuum into the body of the aero cyclone 1, through a tangentially located supply pipe. Due to such an air supply, it acquires turbulent motion in the body of the aero cyclone 1 and enters the discharge block of the ozonizer 5, where the air is degassed. The centrifugal forces arising from this will separate all inclusions from the air, the specific gravity of which is greater than the weight of the air, and wring out this part of the flow to the wall of the air cyclone 1 and, under the same pressure, this part will be brought out through the sand pipe 4. The main part of the flow of the air, already without small solid fractions of inclusions, rotates 180 °, forms an internal, also rotating stream, but heading to the drain pipe 3. Due to the fact that in the aerocyclone 1 the stream moves, rotating first in the external stream, and then, Having become more bright from various inclusions, it turns 180 ° and rotates again at flow rates from 1.5 to 3.5 m / s, while ensuring stable flow turbulence in the quadratic resistance zone, where intensive air disinfection and degassing take place, which contributes to the active saturation of air with ozone, obtained as a result of ionization of oxygen in the air passing through the discharge block of an electrozoning device 5 located on the central axis of the aero cyclone 1.

Intensive rotational movement of the air flow with a sufficiently high flow velocity from 1.5 to 3.5 m / s included in the discharge device of the electric shielding device, promotes uniform processing of the air and cooling the discharge block of the electric shielding device.

Improving the efficiency of disinfection and degassing of air is the complexity of their processing, that is, cleaning from various inclusions less than 0.1 mm and the active saturation of air with ozone, which contributes to better processing of air, namely disinfection and degassing.

Claims (1)

Aero cyclone for air media containing small solid fractions, including a cylindrical conical housing with tangential supply, drain and sand nozzles, characterized in that a discharge unit of an electric zoning device is installed along the central axis inside the housing, while the cross-sectional areas of the aerocyclo housing and the discharge unit are made in the ratio 1 / (0.5 ÷ 0.7), which creates resistance to air flow, which allows for the creation of a stable turbulence at an appropriate air supply pressure Nost.