RU2764301C1 - Vehicle for sampling dust-like bulk materials - Google Patents

Abstract

FIELD: vehicles.

SUBSTANCE: apparatus comprises a body, an air blower, a suction air intake, a cargo container for collecting dust-like bulk materials and purifying air therefrom, bypass pipelines for passage of the flow of the material-air mixture in the direction of the cargo container, and a looped air duct for suctioning the material-air mixture. The looped air duct is made in the form of a chute containing a lower and an upper parallel walls with guides (6) installed between them, located tangentially to the inner wall (7) of the chute, forming an annular gap (8) between the guides and the inner wall of the looped chute communicating with the bypass pipelines for passage of the swirl flow of the material-air mixture in the direction of the cargo container.

EFFECT: increase in the productivity of the suctioned air-material mixture is provided due to the increase in the total area of the passage section and reduction in the aerodynamic losses on the tangentially installed curvilinear guides of the looped chute with the constant dimensions thereof.

1 cl, 3 dwg

Description

The development refers to vehicles with high cross-country ability using an air cushion, to transport equipment and transportation of dust-forming bulk materials, for example, in quarries after blasting, to mining in the reclamation of disturbed lands, to peat extraction to reduce peat losses, and other areas of folk economy.

Known vehicles for collecting dusty bulk materials, containing a housing, an air blower, a suction air intake, a cargo container for collecting dusty bulk materials and cleaning air from it, bypass pipelines for passing the material-air medium flow towards the cargo container and a looped air duct for sucking the air-material mixture. (Patent 169496. Vehicle for dust collection. Published on March 21, 2017. Bull. No. 9. Authors: Davydov S.Ya. et al., Patent 169250. Vehicle for dust collection. Published on March 13, 2017. Bull. No. 8. Authors: Davydov S. Ya. et al., Patent 2613751. Off-road vehicle, published on March 21, 2017. Bulletin No. 9. Authors: Davydov S. Ya., et al.

The holes of the looped air duct available in known vehicles for collecting dusty bulk materials are limited in terms of the throughput of the suction of the material-air mixture, which limits the performance of collecting bulk material.

The objective of this development is to increase the productivity of the material-air mixture being sucked in by increasing the total area of the passage section and reducing aerodynamic losses on tangentially installed curved guides of the looped chute, with its dimensions unchanged.

The task is achieved by the fact that in a vehicle for collecting dusty bulk materials, containing a body, an air blower, a suction air intake, a cargo container for collecting dusty bulk materials and cleaning air from it, bypass pipelines for passing the material-air mixture flow towards the cargo container and looped an air duct for sucking in a material-air mixture, a looped air duct is made in the form of a chute containing lower and upper parallel walls, with guides installed between them, tangentially located to the inner wall of the chute with the formation of an annular gap between the guides and the inner wall of the looped chute communicating with bypass pipelines for passage swirling flow of material-air mixture towards the cargo container.

In FIG. 1 shows the proposed tool for collecting dusty bulk materials; in fig. 2 - diagram of a looped chute; in fig. 3 - view A in Fig. 2.

The vehicle for collecting dusty bulk materials includes a body 1 with a cargo container 2 for collecting dusty bulk materials and cleaning the air from it. Circular duct 3 for suction material-air mixture is made in the form of a trough. Circular chute 3 contains lower and upper parallel walls 4 and 5. Between parallel walls 4 and 5 curvilinear guides 6 are installed. 3, an annular gap 8 is formed, which communicates with bypass pipelines 9 for the passage of a swirling flow of material-air mixture towards the cargo container 2. For turning, knocking out and lifting dust-forming materials from an uneven soil surface 10, the device is equipped with an air blower 11 with an annular nozzle 12.

With the help of an air blower 11, a calculated overpressure is created in the pipe 12. Compressed air flows from the nozzles of the pipe 12 are tedding, knocking out and lifting dust-forming bulk materials from an uneven soil surface 10. When air is pumped by an air drive 11, a vacuum is created in the air intake 13.

Due to the creation of a vacuum in the air intake 13 through the cargo container 2 and bypass pipelines 9, bulk materials are sucked in by air flows into the slotted cavity 14 of the looped chute 3. In this case, the greater the air flow velocity, the more significant the work performed by it: speed 4.4-6, 7 m / s - dust is transferred, 9.3-15.5 m / s - sand, and 18.9 m / s - gravel. At a speed of 22.6-58.6 m/s, small pebbles and pebbles can move and be carried. With curved guides 6, the flow of the material-air mixture in a swirling state is fed through the annular gap 8 and through the bypass pipelines 9 into the loading container 2.

Thus, the use of the development makes it possible to increase the productivity of the material-air mixture being sucked in by increasing the total area of the passage section and reducing aerodynamic losses on tangentially installed curvilinear guides of the looped chute, with its dimensions unchanged.

Claims (1)

A vehicle for collecting dusty bulk materials, comprising a body, an air blower, a suction air intake, a freight container for collecting dusty bulk materials and cleaning air from it, bypass pipelines for passing the material-air mixture flow towards the cargo container and a looped air duct for sucking the material-air mixture, which is different by the fact that the looped air duct is made in the form of a chute containing the lower and upper parallel walls with guides installed between them, tangentially located to the inner wall of the chute with the formation of an annular gap between the guides and the inner wall of the looped chute, which communicates with bypass pipelines for the passage of a swirling flow of air-material mixture towards the shipping container.

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