JPH044864Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention automatically and continuously air cleanses fine powder adhering to the inner surface of container bags used for transporting powders such as cement and refractory raw materials. This invention relates to a container bag cleaning device.

[Prior art and its problems]

In conventional container bags for cement, refractory raw materials, etc., it is necessary to remove fine powder adhering to the inner surface after the packaged items are released. This is because if fine powder remains on the inner surface, the quality will fluctuate and the commercial value will decrease.

However, in the past, air was simply introduced into the inner surface of the container bag from the top and struck the outer surface of the bag, leaving the problem that the fine powder on the inner surface of the container bag could not be completely removed. Another problem is that when the outside of the bag is struck, a large amount of dust is scattered within the work area.

[Means for solving problems and their effects]

In order to solve the above problems, the present invention has the following configuration.

First of all, when cleaning the dust particles adhering to the inner surface of the container bag 11 with air, the lower part of the bag 11 is surrounded by the lower dust collection hoods 8a and 8b in advance, and the dust falling to the lower part of the bag 11 is collected. The gas is discharged from the hoods 8a and 8b.

By adopting such a configuration, the device of the present invention prevents dust from scattering into the workplace.

Further, by moving the rotating nozzle 5 which blows cleaning air into the container bag 11 up and down a predetermined distance, fine particles adhering to the inner surface of the bag 11 can be completely cleaned.

[Explanation of Examples]

Examples of the present invention will be described below.

First, each member will be explained in the drawings.

1 Trolley conveyor 2 Container bag hanging fitting 3 Blower 4 that sends cleaning air to the rotating nozzle 5 Dust collector 5 that collects the dust particles collected by the lower dust collection hoods 8a and 8b via the dust collection pipe 9 Attached to the tip of the blower pipe 6 With the rotating nozzle,
The nozzle is raised and lowered by a nozzle raising and lowering chain 15.

6 A blower tube for cleaning air, with a tip blower tube 18 provided at its tip.

The rotating nozzle 5 is attached to the tip of this tip blow pipe 18 and can be raised and lowered by a nozzle lifting chain 15.

Further, a horizontal extensible portion 6a is provided at the base end of the horizontal portion of the blast pipe 6, and the horizontal portion is connected to a movable cart 14.

Therefore, as the movable cart 14 moves forward, it expands into the horizontally expandable portion 6a.

7 A cleaning air discharge pipe branched from the blower pipe 6.

8a, 8b As shown in FIG. 4, these are lower dust collecting hoods that close and seal the lower part of the container bag 11 when cleaning the container bag 11.

9 A dust collection pipe that collects the dust particles collected by the lower dust collection hoods 8a and 8b.

10 A bellows-type dust collecting telescopic tube connected to the dust collecting hoods 8a and 8b, which allows the dust collecting hood 8a on the side connected to the dust collecting pipe 9 to move forward and backward as shown in FIG.

11 Container bag 12 A connecting hood for sealing the joint when the dust collection hoods 8a and 8b approach each other to seal the lower part of the container bag 11.

13 A lower sealing plate 14 provided on the opposing surfaces of the lower dust collection hoods 8a and 8b and for sealing the lower part of the container bag 11.Moves on the moving frame 16 to extend the air pipe 6 through the horizontal extension/contraction part 6a. The moving carriage 14 is also equipped with a nozzle lifting chain 15 for raising and lowering the rotating nozzle 5.

15 A chain that lifts and lowers the swinging nozzle 5, which is connected to the swinging nozzle 5 from the outside of the vertical extension/contraction part 18a of the tip blow pipe 18, and is guided by a guide wheel 23 mounted on the moving cart 14 to move the nozzle 5 up and down. .

16 A moving underframe 17m for moving the moving cart 14 forward and backward. A limit switch 18 that controls the moving distance of the nozzle elevating chain 15, that is, the lifting distance of the rotating nozzle 5. It has a vertically expandable part 18a, is attached to the tip of the moving cart 14, and is attached to a blow pipe. A tip air pipe 19 communicating with 6 is a cylinder for moving the moving cart 14 and is mounted on the moving underframe 16.

20a Blower valve 20b of the blower pipe 6 Release valve 21 of the discharge pipe 7 Upper dust collecting hoods 22a, 22b that collect fine dust discharged from the upper part of the container bag 11 Lower dust collecting hoods that move the lower dust collecting hoods 8a, 8b The moving cylinder 23 As described above, the rotating nozzle lifting rope guide wheel 24 The upper dust collection duct connected to the upper dust collection hood 21 The functions thereof will be explained below.

Sealing the bottom Trolley conveyor 1 in Figures 1 and 2
Then, the container bag 11 is attached to the container bag hanger 2 at the location A in FIG. 1, and the container bag 11 is transported to the container bag cleaning location B.

When the cleaning point B is reached, the container bag 11
The lower part of the dust collecting hood 8a and 8b is inserted between the lower dust collecting hoods 8a and 8b. That is, the state changes from FIG. 5 to that shown in FIG.

In the state shown in FIG. 5, the dust collecting hoods 8a and 8b seal the lower part of the container bag 11 while extending the bellows-type dust collecting telescopic tube 10.
At that time, the connecting hood 1 of the dust collecting hoods 8a and 8b
2 eliminates air leakage between the two. (5th
In addition, the lower sealing plates 13, 13 of the dust collecting hoods 8a, 8b are in close contact with the lower part of the container bag 11.

Cleaning Operation When the lower part of the container bag 11 is isolated from the outside air by the lower dust collection hoods 8a and 8b,
The movable cylinder 19 extends the extensible portion 6a of the blast pipe 6 to advance the cleaning movable cart 14, and the rotating nozzle 5 advances into the hanging fitting 2. (Figures 2 and 3) In other words, the hanging fitting 2 is attached to the lower dust collection hood 8.
When it enters between a and 8b, it faces the cleaning mobile cart 14.

As shown in FIG.
The vertical expandable portion 18a of No. 8 is extended and lowered, and the inner surface thereof is cleaned along with this lowering.

The vertical movement distance of the cleaning rotating nozzle 5 can be set as desired by the limit switch 17m, so that it can be changed as desired in accordance with the length of the container bag 11.

The dust thus washed, floating upwards, is sucked in by the upper dust collection hood 21 and discharged to the upper dust collection duct 24, and the dust that has fallen to the bottom is collected through the bellows-type dust collection from the lower dust collection hoods 8a, 8b. After passing through the telescopic pipe 10 and the dust collection pipe 9, the dust collector 4
is discharged to the outside.

[Effect of the invention] The container bag 11 has a lower dust collection hood 8a,
8b isolates it from the outside air during cleaning, so dust does not scatter into the work area.

Since the vertical movement length of the cleaning rotating nozzle 5 can be changed by the limit switch 17lm, even if the length of the container bag 11 changes, it can be adapted to the length.

Cleaning time can be significantly reduced.

[Brief explanation of the drawing]

Figure 1: Plan view of trolley conveyor 1 circulation circuit using the device of the present invention, Figure 2: Side view of the same,
FIG. 3: A side view of the main parts, FIG. 4: A perspective view of the lower dust collecting hood, FIGS. 1...Trolley conveyor, 2...Container bag hanging fitting, 3...Blower, 4...Dust collector, 5
...Swivel nozzle, 6...Blow pipe, 6a...Horizontal telescoping section, 7...Discharge pipe, 8a, 8b...Lower dust collection hood, 9...Dust collection pipe, 10...Accordion type dust collection telescoping pipe 10, 11...Container bag, 12...Connection hood, 13...Lower sealing plate, 14...
...Moving trolley, 15...Nozzle lifting chain, 16
...Moving underframe, 17m...Limit switch, 18...Tip air pipe, 18a...Vertical expansion/contraction section, 19...Moving trolley moving cylinder, 20a...
...Blower valve, 20b... Release valve, 21...
Upper dust collection hood, 22a, 22b...Lower dust collection hood moving cylinder, 23...Nozzle lifting rope guide wheel, 24...Upper dust collection duct, A...
The attachment point of the container bag 11 to the hanging fitting 2,
B...Cleaning location of container bag 11.

Claims (1)

[Scope of Claim for Utility Model Registration] In a container bag cleaning device for air cleaning fine dust adhering to the inner surface of a container bag 11 suspended from a container bag hanging fitting 2 transported by a trolley conveyor 1, the container bag is cleaned at a cleaning position. 11 lower dust collection hood 8a for surrounding and sealing the lower part;
8b and a rotating nozzle 5 that injects cleaning air that moves up and down inside the container bag 11. The hood 8a is an expandable dust collection tube 1
0 and a dust collection pipe 9, and the rotating nozzle 5 can be moved up and down a predetermined distance by a nozzle up and down chain 15 suspended on a washing moving trolley 14 that can move forward and backward with respect to the container bag hanger 2. A container bag cleaning device characterized by: