JPS597603B2 - Powder discharge device in powder transport vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a powder discharge device for discharging powder in a powder tank using pressurized air in a powder transport vehicle.

Generally, in a powder transport vehicle equipped with a cyclone to separate the powder from the pressurized air that is pumped to the tip of the powder discharge pipe, the cyclone itself performs the separating action, so it has a certain protruding shape. However, when storing the exhaust pipe, a storage space was created between the driver's cab and the tank by the amount of the cyclone's protruding volume, and when storing it above the car body, the exhaust pipe was rotated and tilted upward by the amount of the cyclone's protruding volume. The aircraft had no choice but to take a stowed position with high ground clearance.

Therefore, the present invention uses a flexible material such as fabric on the protruding part of the cyclone to make it expandable and retractable, lowering the storage position when stored, and thereby reducing the discharge efficiency at the protruding part during rainy weather. An embodiment of the present invention will be explained below with reference to the drawings. On the body frame 1 of the powder and granular material transport vehicle V, there is a powder and granular material tank. 2 is mounted, and into this tank 2, pressurized air is sent from a compressor 3 driven by a traveling engine, and the contained powder and granular material can be discharged by the pressurized air. It has become.

A discharge pipe 4 is mounted on the vehicle body frame 1 behind the powder and granular material tank 2, and the base of this discharge pipe 4 communicates with the inside of the powder and granular material tank 2.

In the discharge pipe 4, a vertical rotary discharge pipe part 6 is rotatably connected to a vertical fixed discharge pipe part 5 fixed to the vehicle body frame 1. Furthermore, the upper end of the rotary discharge pipe part 6 is undulating. The discharge pipe section 7 is configured to be pivotally supported so as to be able to rise and fall freely, and the fixed discharge pipe section 5
A conventionally known rotation device 8 for rotating the rotary discharge pipe section 6 is provided at the connection between the rotary discharge pipe section 6 and the upper end of the rotary discharge pipe section 6. A telescopic cylinder 9 for raising and lowering the undulating discharge pipe part 7 is connected between the base ends of the discharge pipe part I.

A powder discharge device 11 is connected to the tip of the undulation discharge pipe section 7 via a flexible extensible tube 10. It is sandwiched between the two and is swingably supported by it.

Note that 13 in the figure is a silo installed on the ground.

Next, the powder discharge device 11 will be described in detail with reference to FIG. 2. Reference numeral 12 is a cyclone main body, and the flexible extensible tube 10 is tangentially connected to a cylindrical portion 13 that is open at the bottom.
3 has an exhaust pipe 14 in the center of the upper surface, lt1,,15
The lid body prevents rainwater etc. from entering into the exhaust pipe 14. The lid body is provided further above the cylindrical part 13 with a space 16 in between, and has an opening 17 at its lower end. and the outside of the powder discharge device 11 are communicated through a discharge tube 14, a space 16, and an opening 17.

Further, at the lower end 12 of the cylindrical portion 13, a flexible material 18 having air permeability, such as cloth, is continuously provided as an inclined surface portion of the cyclone body 12 in the shape of an inverted truncated cone. A non-breathable waterproof flexible material 21 made of synthetic resin such as nylon is connected to the lower end of the flange 20 having the hole 19, and covers the flexible material 18 with a certain amount of space 22 in between. Further, at the lower end discharge port, both flexible members 18 and 21 are integrally connected via a ring 23, and when the ring 23 is lifted upward, both flexible members 18 and 21 are connected together.
B, 21 can be stored, and the lower part of the cyclone body 12 and the outside of the powder discharge device 11 are a flexible member 18, a space 22,
They are communicated through a through hole 19, a space 16, and an opening 17.

Next, to explain the operation of the above-mentioned embodiment of the present invention, the discharge pipe 4 is now rotated and raised to extend the discharge port of the granular material discharge device 11 at its tip downwardly, and the discharge port of the granular material discharge device 11 is extended downward and connected to the input port of the silo 13. After insertion, when the compressor 3 is operated, the powder and granules stored in the powder and granule tank 2 are gradually pressurized, and the powder and granules are discharged together with the pressurized air through the discharge pipe 4 and the flexible extensible pipe 10. The powder and granular material and pressurized air are separated into the device 11, and this is further explained in detail in FIG. It is exhausted to the outside through the flexible member 18 having air permeability, and is exhausted to the outside through the space 22 between the flexible members 1821, the through hole 19, the space 16, and the opening 17.
On the other hand, the separated powder falls along the inclined surface of the flexible member 18 and is discharged through the ring 23 of the discharge port.

When the discharge operation is completed, the undulating discharge pipe section 7'' is stored in the upper part of the vehicle body, and the powder discharge device 11 lifts the ring 23 upward as shown in FIG. Even if it is stored in its original condition, it will not interfere with the vehicle body due to its flexible structure.

As described above, according to the present invention, the discharging device of a powder transport vehicle has a flexible structure that can be expanded and contracted, and the inclined surface of the cyclone is made of a flexible material that has air permeability, and the periphery thereof is made of a flexible material that has air permeability. Because it is covered with waterproof flexible material, it can be stored in a low position without creating a special storage space while driving.Even in rainy weather, the cyclone slope becomes wet during discharge work, which reduces discharge efficiency. Sufficient exhaust is carried out above and below the cyclone without any problems, and the exhaust work can always be carried out smoothly.

[Brief explanation of drawings]

FIG. 1 is a side view of a powder transport vehicle equipped with the device of the present invention, and FIG. 2 is a longitudinal sectional view of the main parts, with a showing the extended state and b showing the retracted state. 1 is a vehicle body frame, 2 is a powder tank, 4 is a discharge pipe, 11 is a powder discharge device, 12 is a cyclone, 15 is a lid body, 18 is a flexible material with breathability, and 20 is a breathable material. It is a flexible material that is not waterproof.

Claims (1)

[Scope of Claims] 1. In a powder discharge device comprising a cyclone body swingably provided at the tip of a discharge pipe and a lid erected on top of the cyclone shaft, the inclined surface portion of the cyclone may be provided with ventilation. A powder discharge device for a powder transport vehicle, which is made of a flexible material, and its periphery and lower end are covered with a waterproof flexible material that does not have air permeability, so that the lower part can be expanded and contracted. 2. A granular material discharge device in a granular material transport vehicle according to claim 1, wherein the inclined surface portion of the cylindrical member and the icron are formed of cloth or the like. 3. Cover the periphery and lower end of the cyclone's inclined surface with vinyl,
A powder discharge device for a powder transport vehicle according to claim 1, which is coated with a synthetic resin such as nylon.