SU1671258A2 - Device for dry removal of dust from tunnels - Google Patents

Abstract

The invention relates to a cleaning technique and is intended for the dry cleaning of tunnels from dust. The purpose of the invention is to improve the quality of cleaning. A device for dry cleaning of dust in tunnels comprises a platform 1 associated with a vehicle, a carrier air injection unit consisting of an injection fan 2 connected by means of pipelines 3 with nozzles 4 located along the perimeter of the treated surface, and a dust collection unit containing electrostatic precipitators 5 provided with a confuser 6. The plane of the output part of the nozzles 4 of the air injection unit and the plane of the intake part of the confuser 6 are spaced apart along the length of the platform and directed towards each other. The plane of the intake part of the confuser 6 is perpendicular to the direction of movement of the device. The dust collection unit further comprises an injection fan 7 with air ducts 8 equipped with slotted nozzles 9 for creating an air seal between the surface to be treated and the confuser 6 located on the outer side of the confuser 6 at an angle to the surface to be processed in the direction of movement of the device. 2 Il.

Description

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The invention relates to a cleaning technique, is intended for the dry cleaning of tunnels from dust and is an improvement of the device according to the model No. 1459652.

The purpose of the invention is to improve the quality of cleaning.

Figure 1 shows the device, a general view; Fig, 2 - section aa in Fig 1,

The device for dry cleaning of dust in tunnels comprises a platform 1 associated with the vehicle, a carrier air injection unit consisting of an injection fan 2. connected by means of pipelines 3 with nozzles 4 located along the perimeter of the treated surface, and a dust collection unit containing electrostatic precipitators 5 equipped with a confuser 6. The plane of the output part of the nozzles 4 of the air injection unit and the plane of the intake part of the confuser 6 are spaced apart along the length of the platform and directed towards each other. The plane of the intake part of the confuser 6 is located perpendicular to the direction of movement of the device. The vacuum inlet assembly further comprises an injection fan 7 with air ducts 8 provided with slotted nozzles 9 for creating an air seal between the surface to be treated and the confuser 6 located on the outer side of the confuser 6 at an angle to the surface to be treated in the direction of movement of the device. In the lower part of the confuser b parallel to the plane of the path there is a cantilevered goat / river 10.

The device works as follows.

The air injection unit knocks down dust from the tunnel decoration to form a dusty air mixture, which, when the device moves, moves to the plane of the intake expanded part of the confueor 6.

The air supplied through the ducts 8 by the injection fan 7, which flows from the slit nozzles 9 towards the device at an angle to the tunnel finish, creates a continuous air curtain forming an air seal between

finishing the tunnel and confuser 6, which prevents the penetration of dust-air mixture outside the device. As the device moves, the dust-air mixture is captured by the confuser 6 and fed to

electrostatic precipitator 5. The aerodynamic resistance of electrostatic precipitators 5 (for example, cascade ones) is insignificant, therefore, there is almost no air inlet to the electrostatic precipitator 5, as a result of which almost the entire volume of dust-air mixture captured by confuser 6 and depleted by the electrostatic precipitator 5. Large particles

debris located on the surface of the tunnel and knocked down during operation of the dust blowing unit is captured by a cantilever visor 10 located in the lower part of the confuser 6, parallel to the plane of the path.

In addition, the electrostatic precipitators in the process of operating the dust collecting units disinfect and ozonize the air in the tunnels, improving its quality, which is an important positive factor in ensuring normal conditions for the breathing of the people there.

Claims (1)

The invention of the device for dry cleaning of dust in tunnels on auth. Mg 1459652, characterized in that. In order to improve the quality of cleaning, the dust collection unit additionally contains a pressure fan with air ducts fitted with slotted nozzles to create an air seal between the surface to be treated and the confuser, located on the outer side of the confuser at an angle to the surface to be treated in the direction of movement of the device. / ЈL -M ///. Thebes: 2