Device for wet treatment of gas emissions

 

(57) Abstract:

Usage: the invention relates to a device for wet treatment of gas emissions and can be used to extract dust and harmful gas and solids from gas emissions from factories, power plants, boilers Central heating, etc., the inventive device for wet treatment of gas emissions in the form of a tall chimney contains nozzles, located in the upper part of the tube with water spraying straight down, underneath the injectors electric heater with adjustable temperature and a reservoir for collecting the resulting liquid in the lower part of the tube. Over the electric heater can be installed fan for supplying variable speed air flow in the direction perpendicular to the chimney. The device provides effective cleaning gas emissions. 1 C.p. f-crystals, 2 Il.

The invention relates to a device for wet treatment of gas emissions produced through tall chimneys. It can be used to extract dust and harmful gases /sulfur dioxide, nitrogen oxides, hydrogen sulfide, chlorine, ammonia, etc. from gas emissions p

Known inertial collector-cyclone [1] in which dust particles recovered by centrifugal forces resulting from the rotational movement of the purified gas. The disadvantage of these devices is their inefficiency.

Also known electrostatic precipitators [1] in which the dust particles from the gas emission is removed by means of an electrostatic field. The disadvantage of these devices in their significant complexity and low efficiency.

The closest in technical essence and the achieved result is a device for wet treatment of gas emissions [2] in the form of a flue containing placed inside the pipe system of nozzles for spraying water, mounted on the top of the tube coaxially, and a reservoir for collecting the resulting liquid.

However, the known device does not provide a high degree of purification of gas emissions.

The formulated problem is solved due to the fact that the device for wet treatment of gas emissions in the form of a flue containing nozzles for spraying water inside the pipe and a reservoir for collecting the resulting liquid in the bottom of the pipe, the pipe is made of high-rise nozzle located in the upper part of the tube with the opportunity Restoral heating. The device can also be equipped with a fan for supplying variable speed air flow in the direction perpendicular to the chimney, installed over an electric heater.

The essence of the invention lies in the fact that the drops of water through the injectors spray directly into the space tall chimney, the height of which may be several tens or even hundreds of meters. Drops of water, like rain drops, falling from a great height from the top of the pipe against the flow of smoke in its path capture dust particles of all sizes and simultaneously dissolve in itself harmful gaseous impurities /sulfur dioxide, nitrogen oxides, hydrogen sulfide, chlorine, ammonia and so on/ and prevents them from entering the environment. Fallen drops down with dust and dissolved gaseous impurities are collected in a special tank, located at the bottom of the flue pipe. Then the liquid through a special pipe with valve output and used as raw materials for the chemical industry. The simplicity of the device is ensured by the fact that it can be created by a relatively small alteration of normal and, as a rule, the existing chimney.

In Fig. 1 shows a device for Mac, located in the upper part of the pipe.

In Fig. 2 shows a similar device in which to adjust the draught in the chimney using a fan driven by an electric motor. The fan creates on the upper part of the chimney air flow perpendicular to the pipe, resulting in a chimney works as adjustable gas-jet pump.

The device shown in Fig. 1 and 2, consists of the chimney 1, attached to the duct 2. Inside of the chimney in its upper part are water nozzle 3 connected to the pipe 4 for supplying a spray of water. In the lower part of the chimney 1 the tank 5 to collect falling water drops. To output the collected liquid from the reservoir 5 to the outside is the pipe 6 with the valve 7. To adjust the thrust in the pipe 1 in the device of Fig. 1 used electric heaters 8. To adjust the traction device of Fig. 2 used the fan 9, which sucks ambient air through the pipe 10, and then through the pipe 11 drives it perpendicular to the upper part of the tube 1.

The operation of the device of Fig. 1 and 2 is as follows.

In the pipe 1 through the duct 2 is directed gas emissions, as do obisnyat vertically down and on its way down capture dust particles and simultaneously dissolve in itself harmful gaseous impurities. Due to the large height of the pipe /tens and even hundreds of meters/ cleaning from dust and harmful gas impurities should be a very effective.

A drop of water containing the dust and dissolved gaseous impurities collect in the tank 5. Periodically collected fluid through the pipe 6 and the valve 7 release out and used as raw materials for the chemical industry.

If natural draft in the chimney is insufficient, for its strengthening in the device of Fig. 1 use the heaters 8, heated by electric resistance or hot steam. The heated air and smoke at the end of the pipe will move upward, and thrust in the pipe increases. Thrust in the pipe regulate the temperature of the heaters 8.

To gain traction on the device shown in Fig. 2 include the fan 9 and the pipe 10 are sucked from the environment the air and drives it through the pipe 11, which is located perpendicular to the flue 1. The air flow in the tube 11 increases thrust in the pipe 1, which in this case works as a jet pump. Thrust in the pipe to regulate the flow rate of air in the pipe 11, which may be done, for example, by changing the rotation speed of the fan 9. As to coderoute under the influence of drops of water and the substances contained therein, the inner surface of the pipe cover anti-corrosion layer.

The main advantage of the proposed device is its simplicity and high efficiency. In fact, to create a device necessary to alter the existing chimney, which will require a minor investment. For this reason, the proposed device can be installed for a short time in any enterprise. This will cause the smoke and harmful invisible gas impurities from numerous enterprises will completely cease to enter the environment. Dramatically improve the quality of the air that breathes the population of the surrounding areas that will improve the health of people, improving their health and reducing health costs.

Cleaning of smoke in the proposed device will also lead to the disappearance of acid rain, which destroys the flora and fauna over large areas and, in addition, quickly destroy ancient monuments: architectural structures and sculptures.

Collected in the lower part of the device, the liquid containing dust particles and dissolved chemicals can be used as raw material for Himicheskaya nozzles for spraying water inside the pipe and a reservoir for collecting the resulting liquid in the lower part of the tube, characterized in that the pipe is made of high-rise nozzle located in the upper part of the tube with water spraying straight down and under the nozzles mounted electric heater with adjustable temperature.

2. The device under item 1, characterized in that under an electric heater, a fan for supplying variable speed air flow in the direction perpendicular to the chimney.

 

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