JPS6053642B2 - Gravity sedimentation type powder separation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a gravity sedimentation system in which a powder transport pipe is connected to a separator, an air discharge pipe is connected to the separator, and the powder is sedimented and separated in the separator. This invention relates to a powder separation device.

Conventional gravity sedimentation type powder and granular material separation equipment of this type is generally designed as a stationary type, and if all or part of the equipment is installed on borrowed land or public land, it is difficult to remove and reinstall it. The work required a great deal of effort and was often highly dangerous.

For example, when unloading from a ship at a port, the powder transport pipe from the quay to the separator must be removed immediately upon completion of the unloading operation, and at this time the flange of the transport pipe must be separated. This was necessary, and because the transport pipeline was built elevated so that workers could pass underneath it, the work was inevitably dangerous. Similar complicated and dangerous work was required to reconnect the transport pipelines. Furthermore, when scheduling work time for such removal and re-laying, a high-output separation device is required to unload the cargo in a short period of time, which is extremely uneconomical. This invention was devised to solve these conventional problems, and the purpose is to provide a gravity sedimentation type powder and granule separation device in which removal and re-laying of the powder and granule transport pipes is extremely easy. do.

The gravity sedimentation type powder and granule material separator according to the present invention has a part of the powder and granule transport pipe within a predetermined distance from the separator as a straight pipe,
The part including this straight pipe can be separated from other parts, and the straight pipe and the separator are connected by a shaft sealing device that allows the straight pipe to slide in the axial direction. By providing an insertion part into which the straight pipe can be inserted and which can be opened and closed on the wall facing the shaft, the straight pipe is pushed from the shaft sealing device side toward the insertion part side and penetrates the separator. The straight pipe can be housed in the separator by supporting it at two points: the shaft sealing device and the inserted part.

Next, a first embodiment of the gravity sedimentation type powder and granular material separator according to the present invention will be described based on the drawings.

FIG. 1 shows the overall configuration of the same embodiment, and the gravity sedimentation type powder and granule material separator 1 is constructed by connecting a powder and granule transport pipe 4 to a separator 3 that takes in air in the direction of an air discharge pipe 2. , powder transport pipe 4
Powder and granular material 7 inside a ship 6 is unloaded from a nozzle 5 provided at the tip of the ship. The air discharge pipe 2 is connected to a blower 9 through a bag filter 8, and the powder 7 that cannot be separated by the separator 3 is stored in the bag filter 8. Separator 3
The bottom of the bag filter 8 can be opened toward the conveyor 10, and the separator 3 and the bag filter 8 can be opened once.
The powder and granular material 7 stored in the conveyor 10 is conveyed via conveyors 11 and 12 to a collection position or a transport vehicle. The part of the powder transport pipe 4 that extends into the ship 6 is supported by a crane 14 installed on a movable platform 13, so that the height of the nozzle 5 can be adjusted according to the powder accumulation situation. It's getting old.

Furthermore, flexible parts 15 and 16 are provided on both sides of the part of the powder transport pipe 4 supported by the crane 14, so that the hanging part hangs vertically regardless of whether the crane 14 is raised or lowered. It's summery. In Figures 1 and 2,
A portion of the powder transport pipe 4 within a predetermined distance from the separator 3 is a straight pipe 17, and this straight pipe 17 is separably connected to the flexible portion 16 by a flange connection.

Further, the straight pipe 17 is supported by a truck 18 so that it can be moved very easily. The straight pipe 17 is connected to the separator 3 by a shaft sealing device 19 that allows the straight pipe to slide in the axial direction.
If the straight pipe 17 is connected to the flexible part 16 and is separated from the flexible part 16, the straight pipe 17 can be easily moved in the axial direction with respect to the separator 3.

At a position facing the shaft sealing device 19 in the separator 3, an inserted part consisting of a rotary shutoff valve 20 is provided concentrically with the straight pipe 17, and the part of the straight pipe 17 of the powder transport pipe 4 is connected to the separator. 3 and can be inserted into the shutoff valve 0. Also, separator 3. A damper 21 capable of closing the inlet of the cutoff valve 20 is provided inside the separator 3, and the powder 7 in the separator 3 is blocked by the damper 21 and prevented from entering into the cutoff valve 20. The shaft sealing device 19 is made of fluorine wood or other material and is made of a plurality of flat, square, string-shaped, etc. arbitrary packings 22 which are tightened by a packing retainer 24 via a packing receiver 23, and has high airtightness and extremely low airtightness. Has frictional resistance.

This embodiment has such a configuration, and during unloading work, the shutoff valve 20, that is, the inserted portion is closed to prevent the powder and granular material 7 and air in the separator 3 from leaking from the shutoff valve 20.

When the unloading operation is finished, the straight pipe 17 is connected to the flexible part 16.
2, open the cutoff valve 20 and damper 21, and pass the straight pipe 17 portion of the powder transport pipe 4 through the separator 3 and into the cutoff valve 20 (see the imaginary line in Fig. 2). .

). If a part of the transport pipe 4 is housed in the separator 3 and protrudes rearward from the separator, the quay wall 25
The transport pipe 4 in the range from to the separator 3 can be removed very easily and quickly, and its re-laying is also very easy. Note that the cart 19 may be moved depending on the availability, or some kind of power source may be used. In the second embodiment shown in FIG. 3, the cutoff valve 20 is omitted, and the air exhaust pipe 2 is arranged concentrically with the straight pipe 17 to form an inserted portion.

Therefore, by inserting the straight pipe 17 portion of the transport pipe 4 into the air exhaust pipe 2, the transport pipe 4 can be removed in the same way as in the first embodiment, and since the cutoff valve 20 is omitted, the The structure is simpler than that of the first embodiment. If the air exhaust pipe 2 is installed at a position as low as the transport pipe 4 in this way, there is a high possibility that the powder and granules 7 will enter the air exhaust pipe 2. A blocking plate 26 is provided to guide the powder body 7 downward, thereby minimizing the intrusion of the powder body 7 into the air exhaust pipe 2. Further, the portion of the blocking plate 26 below the center thereof is vertically swingable, and when the transport pipe 4 is removed, it is flipped upward to enable the transport pipe 4 to be inserted into the air exhaust pipe 2. In these embodiments, the transport pipe 4 is passed through the separator 3, but when the straight pipe 17 is short or the separator 3 is sufficiently large, the transport pipe 4 may be housed inside the separator 3. It is enough just to do so.

Furthermore, the shaft sealing device and the inserted portion are not limited to the above-mentioned configurations, and may adopt any configuration that provides similar effects.

Furthermore, although the above embodiments have been described with respect to a suction-type separation device, it goes without saying that the present invention can be applied to a pressure-feeding type separation device. As mentioned above, the gravity sedimentation type powder and granular material separation device according to the present invention has a part of the powder transport pipe that is within a predetermined distance from the separator as a straight pipe, and a part that includes this straight pipe is separated from other parts. The straight pipe and the separator are connected by a shaft sealing device that allows the straight pipe to slide in the axial direction, and the straight pipe is insertable into a wall surface of the separator facing the straight pipe. In addition, by providing an inserted part that can be opened and closed, the straight pipe can be pushed from the shaft sealing device side toward the inserted part side to pass through the separator, and the straight pipe can be inserted between the shaft sealing device and the inserted part. Since it can be housed in the separator by point support, it has an excellent effect in that it is extremely easy to remove and reinstall the powder transport pipe. Furthermore, the two-point support structure allows the straight pipe to be housed in the separator with good stability. The part of the powder transport pipe that slides against the shaft sealing device needs to be a straight pipe, but the parts beyond that can be arbitrarily curved.

Therefore, the straight pipe 17 of the above embodiment can be deformed into any shape in which only the portion that slides with respect to the shaft sealing device is a straight pipe.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a first embodiment of a gravity sedimentation type powder and granular material separator according to the present invention, Fig. 2 is an enlarged vertical sectional view showing a separator in the same embodiment, and Fig. 3 is a second embodiment. FIG. 3 is an enlarged longitudinal cross-sectional view showing a separator in an example. 1... Gravity sedimentation type powder separation device, 2...
...Air discharge pipe, 3...Separator, 4...
・Powder transport pipe, 5...nozzle, 6...ship, 7...powder, 8...back filter,
9... Blower, 10, 11, 12... Conveyor, 13... Mobile frame, 14... Crane, 15, 16... Flexible part , 17...
・Straight pipe, 18... Cart, 19... Shaft sealing device, 20... Shutoff valve, 21... Damper, 22...
...Flat packing, 23...Packing receiver, 2
4... Packing holder, 25... Quay,
26...Break plate.

Claims (1)

[Claims] 1. In a gravity sedimentation type powder and granule separation device in which a powder and granule transport pipe is connected to a separator, an air discharge pipe is connected to this separator, and the powder and granules are sedimented and separated in the separator, the separator A part of the powder transport pipe within a predetermined distance from A gravity device connected by a shaft sealing device that allows directional sliding, and further comprising an inserted portion on a wall surface of the separator facing the straight pipe into which the straight pipe can be inserted and which can be opened and closed. Sedimentation type powder separation equipment.