JP2581710B2 - Powder supply device - Google Patents

Description

Description: Object of the Invention (Industrial application field) The present invention relates to a fire extinguisher or the like, for example, a powder feeding apparatus for feeding and filling powder such as a fire extinguisher, The present invention relates to a powder supply device capable of preventing solidification of a body and supplying an appropriate amount of powder.

(Prior Art) Conventionally, a filling funnel as shown in FIG. 5 is used for supplying and filling a powder such as a fire extinguisher into a fire extinguisher or the like.

The filling funnel includes a sliding funnel 31 and a funnel 31.
And a nut 34 attached to the outer periphery of the cylindrical portion 32 and attached to the mouth 36 of the fire extinguisher 35.

In such a filling funnel, a fire extinguisher (not shown) is filled into the extinguisher 35 from the filling funnel.

(Problems to be Solved by the Invention) As described above, the extinguishing agent is charged into the inside of the extinguisher 35 from the charging funnel. However, when the extinguishing agent is clogged in the charging funnel, a stir bar (not shown) is used. ) Was inserted into the cylindrical portion 32 from the funnel portion 31 to scrape off the fire extinguishing agent.

However, since such a scraping operation is manually performed by an operator, it is very complicated.

Also, if the fire extinguisher is clogged in the filling funnel for a long time, the fire extinguishing agent may solidify or moisture may enter the fire extinguishing agent due to release to the atmosphere.In this case, use of the fire extinguisher 35 Sometimes extinguishing media does not emit well.

On the other hand, the amount of fire extinguisher charged into the fire extinguisher 35 depends on the visual observation and experience of the worker. However, even skilled workers could not control the amount of fire extinguisher enough,
The fire extinguisher may scatter outside the fire extinguisher 35.

The present invention has been made in view of such a point, and an object of the present invention is to provide a powder supply device capable of preventing a solidification of a fire extinguishing agent and supplying an appropriate amount of powder.

[Configuration of the invention]

(Means for Solving the Problems) The present invention provides a cylindrical casing for powder storage, which is rotatably arranged in a horizontal direction, a hollow shaft penetrating through the casing, and the hollow shaft. A partition plate which is vertically fixed to the casing and divides the interior of the casing into a storage portion and a discharge portion, and forms a predetermined gap between the outer periphery of the partition plate and the inner peripheral surface of the casing, and A spiral band for transferring powder to the discharge unit side is fixed to the surface, a plurality of guide blades are fixed to the outer periphery of the hollow shaft in the discharge unit, and the hollow shaft in the discharge unit is opened corresponding to each space between the guide blades. A hole is formed, and each guide blade has a scraper blade and a vertical blade which guide the powder toward the hollow shaft side in the radial inward direction by dropping the powder upward between the guide blades and a vertical blade. Corresponding ward A partition plate forming an image chamber is provided, and the powder in the discharge section is guided to the hollow shaft side by the raising blade of the guide blade and the vertical blade, and then supplied to the outside of the casing from the opening through the hollow shaft partition chamber. A powder supply apparatus characterized in that:

(Operation) When the casing is rotated, the powder stored in the storage section is stirred and fluidized by the spiral band, and the powder in the storage section flows into the discharge section from below the partition plate. Next, the powder in the discharge portion is lifted up by the raising blades and the vertical blades of the guide blades, and then falls, and is guided to the hollow shaft side in the radial direction. Thereafter, the powder is supplied to the outside of the casing from the opening through the compartment in the hollow shaft.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

1 to 4 are views showing an embodiment of the powder supply device 1 according to the present invention. In FIG. 1, a powder supply device 1 comprises a cylindrical casing 10 for storage,
And a hollow shaft 12 fixed to the casing 10.The hollow shaft 12 penetrates the casing 10 along the axis of the casing 10, and the hollow shaft 12 is rotated by a bearing 29 provided at the upper end of the gantry 17. Supported as possible. The gantry 17 can be moved by wheels 17a.

A powder inlet 14 is provided on the outer peripheral surface of the casing 10, and the powder inlet 14 is covered by a cover 14a.

Further, the hollow shaft 12 is formed by connecting a splittable shaft by a joint 40, so that disassembly and assembly are easy.

An upper sprocket 18 is fixed to one end of the hollow shaft 12, and the hollow shaft 12 and the upper sprocket 18
Is driven to rotate by a handle 24 via a lower sprocket 19.

The other end of the hollow shaft 12 is connected to a curved tube 26 via a seal joint 25, and the curved tube 26 is connected to a variable nozzle 22 via a reducer 21, a valve 30 and a vinyl hose 27.

An air suction pipe 20 is connected above the curved pipe 26, and an air discharge pipe is connected above the variable nozzle 22 via a rubber hose 28.
23 are connected. The variable nozzle 22 is connected to an injection port of a fire extinguisher (not shown) and charges powder, for example, a fire extinguisher (not shown) into the fire extinguisher, and is replaced according to the type of the fire extinguisher. be able to.

Next, the internal structure of the casing 10 will be described with reference to FIGS.

FIG. 2 is an enlarged sectional view showing details of the casing 10, FIG. 3 is a view taken along the line III-III of FIG. 2, and FIG.
FIG. 4 is a sectional view taken along line IV-IV.

Inside the casing 10, a disk-shaped partition plate 11 is fixed vertically to the hollow shaft 12, and the partition plate 11
The inside of 10 is divided into a storage section 10a and a discharge section 10b. The partition plate 11 forms a predetermined gap L between itself and the inner peripheral surface of the casing 10.

Further, a spiral band 13 is fixed to the inner peripheral surface of the storage section 10a. The spiral band 13 transfers the fire extinguishing agent stored mainly in the lower part of the storage part 10a to the discharge part 10b side as the casing 10 rotates.

On the other hand, guide vanes 15 for guiding the fire extinguishing agent in a radially inward direction are fixed to the outer periphery of the hollow shaft 12 in the discharge portion 10b. That is, four vertical blades 15a are fixed to the outer periphery of the hollow shaft 12 of the discharge portion 10b by abutting the partition plate 11.
Raising blades 15b extending toward the discharge portion 10b are fixed to the rear side in the rotation direction of 5a. This vertical blade 15a and the lifting blade
The guide vanes 15 are orthogonal to each other and constitute guide vanes 15.

Further, inside the hollow shaft 12 in the discharge portion 10b, the inside of the hollow shaft 12 is divided into four compartments 12b in the circumferential direction. A partition plate 16a having a cross-shaped cross section is provided, and a separator plate 16b is provided to prevent the fire extinguishing agent in the hollow shaft 12 from leaking to the storage unit 10a side. As shown in FIG. 4, an opening 12a is formed in the hollow shaft 12 in the discharge portion 10b between the respective raising blades 15b to guide the powder picked up by the raising blades into the hollow shaft 12. ing.

Next, the operation of the present embodiment having such a configuration will be described.

First, the cover 14a is removed, and the storage portion 10a of the casing 10 is removed.
A fire extinguisher is injected into the inside from the powder injection port 14.

Subsequently, the cover 14a is attached to the powder inlet 14, and the casing 10 is rotated in the direction of the arrow in FIG. Then the storage section
The extinguishing agent stored in 10a is stirred and fluidized by the spiral band, and the extinguishing agent located mainly below is
Is transferred to the discharge section 10b side.

Subsequently, the fire extinguishing agent is sent from the lower part of the storage part 10a to the discharge part 10b side through the gap L, and is lifted upward by the raising blade 15b of the guide blade 15. The fire extinguishing agent scooped up by the scooping blades 15b is prevented from leaking laterally by the vertical blades 15a. For this reason, a substantially constant amount is scraped by one stroke of the scraping blade 15b.

Subsequently, the fire extinguishing agent falls downward along the lifting blades 15b, and flows into the hollow shaft 12 through the openings 12a.

When the above-described transfer operation is continuously performed, the hollow shaft 12
The extinguishing agent that flows into the inside is extruded by the extinguishing agent that flows in later. In this case, the storage portion 10a is
Since the flow to the side is prevented, the fire extinguishing agent in the hollow shaft 12 is discharged from the end of the discharge portion 10b to the seal joint 25, the curved pipe 2
6. Supplied to the variable nozzle 22 through the lady 21, the valve 30, and the vinyl hose 27. Subsequently, the fire extinguisher is charged from the variable nozzle 22 into the fire extinguisher.

During this transfer operation, air is sucked into the curved tube 26 from the air suction tube 20, and air is discharged from the air discharge tube 23 through the rubber hose 28 from the variable nozzle 22, so that the fire extinguishing agent supply operation is quickly performed.

Thus, according to the present embodiment, the fire extinguishing agent is
Since it can be stored and supplied in a sealed state in the inside, it is possible to prevent the extinguishing agent from solidifying due to the ingress of moisture and the intrusion of impurities. Further, even when the fire extinguishing agent solidifies after being left for a long time, the fire extinguishing agent can be stirred in the spiral band 13 by rotating the casing 10, whereby the fire extinguishing agent can be fluidized. further,
A substantially constant amount of fire extinguishing agent is lifted by one stroke of the lifting blade 15b, and the fire extinguishing agent is supplied to the outside from the hollow shaft 12, so that the amount of fire extinguishing agent supplied is controlled by the rotation speed of the handle 24. be able to.

In addition. In the above-described embodiment, an example is shown in which the fire extinguisher is supplied with the fire extinguisher and filled.

〔The invention's effect〕

According to the present invention, when the hollow shaft is rotated, the powder in the discharge portion is scraped upward by the scraping blades and the vertical blades, then falls, and is guided toward the hollow shaft in a radially inward direction. Thereafter, the powder is supplied to the outside of the casing from the opening through the compartment in the hollow shaft. in this case,
A substantially constant amount of powder is scraped by one stroke of the lifting blade and the vertical blade and guided to the hollow shaft side, so that the supply amount of powder can be reliably controlled by the rotation speed of the hollow shaft. .

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a powder supply apparatus according to the present invention, FIG. 2 is an enlarged sectional view showing a casing, FIG. 3 is a view taken along line III-III of FIG. 2, FIG. 2 is a sectional view taken along the line IV-IV in FIG. 2, and FIG. 5 is a view showing a conventional filling funnel. DESCRIPTION OF SYMBOLS 1 ... Powder supply apparatus, 10 ... Casing, 10a ... Storage part, 10b ... Discharge part, 11 ... Partition plate, 12 ... Hollow shaft, 12a ... Open hole, 13 ... Spiral band, 15 ...... Guide vanes.

Claims (1)

(57) [Claims] 1. A cylindrical casing for powder storage disposed rotatably in a horizontal direction, a hollow shaft penetrating through the casing, and a hollow shaft fixed vertically to the hollow shaft. A partition that divides into a storage part and a discharge part; a predetermined gap is formed between the outer periphery of the partition plate and the inner peripheral surface of the casing; A plurality of guide blades are fixed to the outer periphery of the hollow shaft in the discharge portion, and an opening corresponding to each guide blade is formed in the hollow shaft in the discharge portion. In the meantime, a partition plate having a lifter blade and a vertical blade, which lifts the powder upward, drops the powder, and guides the powder toward the hollow shaft in a radially inward direction, and forms a partition chamber corresponding to each opening in the hollow shaft. Set The powder supply is characterized in that the powder in the discharge section is guided to the hollow shaft side by the raising blades and the vertical blades of the guide blades, and then supplied to the outside of the casing from the opening through the compartment of the hollow shaft. apparatus.