JPS5920332Y2 - Slurry - dehydration equipment for transported materials - Google Patents

Description

[Detailed explanation of the invention] This invention is based on iron ore, coal, etc., which have been transported in the form of slurry.
This relates to dehydration equipment for materials such as chips.

Slurry transportation, which is a means of transporting materials, has many benefits such as reducing transportation costs, reducing equipment costs and shortening installation time, but materials that are transported in slurry form must be separated from the slurry water before use.

These methods are generally carried out using centrifugal separators, heat drying, etc., but they are expensive, and the latter method in particular causes changes in the properties of the material.

Therefore, the present invention proposes a dewatering device for slurry transport materials that can solve the above-mentioned problems, and one embodiment thereof will be described below with reference to FIGS. 1 to 6.

Reference numeral 1 denotes a drum-shaped container, which has an input port 2 for slurry transport material at its upper end, and a lid 3 that can open and close this input port 2.

The lid 3 is attached to a flange 4 formed at the upper end of the container 1 via a vertical pin 5, and is slid and rotated laterally around the vertical pin 5 to open and close the inlet 2.

An arm rod 6 extending below the flange 4 is attached to the opposite side of the lid 3 from the vertical pin 5, and this arm 6 has a tightening member that can come into contact with the lower surface of the flange 4. A tool (bolt) 7 is provided.

A plurality of containers 1 are arranged in parallel in the same direction, and a slurry material transport pipe 8 is provided diagonally above in the direction in which they are arranged.

A plurality of branch pipes 9 whose free ends are located above the input port 2 are branched from the slurry material transport pipe 8, and each of these branch pipes 9 is provided with an on-off valve 10.

Reference numeral 11 denotes a compressed air supply device communicating with the upper part of the container 1, which includes a compressed air supply pipe 12 parallel to the slurry material transport pipe 8, and a free end of which is branched from the compressed air supply pipe 12 and connected to the top of the container 1. It is composed of a plurality of branch pipes 13 that open at the top, an on-off valve 14 provided in each branch pipe 13, and a compressed air supply unit (not shown) such as a compressor.

Reference numeral 15 denotes a filter device disposed in close contact with the lower end of the container 1, which includes a cylindrical body 16, a supporting ring plate 17 fixed to an intermediate portion inside the cylindrical body 16, and a filter device mounted on the supporting ring plate 17. A wire mesh support plate 19 is placed and has a large number of water holes 18.
A ring-shaped spacer 20 placed on this wire mesh support plate 19, a wire mesh 21 placed on the wire mesh support plate 19 within this ring-shaped spacer 20, and a ring-shaped spacer 21 placed on the ring-shaped spacer 20. In addition, a pressure receiving plate 23 having a large number of water passage holes 22, a holding ring plate 24 placed on this pressure receiving plate 23, and a plurality of fixtures (17, 19, 20, 23, 24) for integrating these The two-way water holes 18 and 22 are shifted in position in the vertical direction so that no pressure is applied directly to the wire mesh 21.

Further, the lower end flange 26 of the container 1 and the upper end flange 27 of the cylindrical body 16 are configured to be in close contact with each other, and this close contact state is maintained by a plurality of fixtures 28.

A temporary water storage tank 29 is provided at the lower end of the filter device 15.
are integrated.

That is, the temporary water storage tank 29 is funnel-shaped and is attached to the lower end of the cylindrical body 16 via a sealing material 30 and a fixture 31, so that the lower part of the cylindrical body 16 is also used as a water storage tank. obtain.

A drain pipe 33 is attached to the lower end of the temporary water storage tank 29 via a fixture 32, and an on-off valve 3 is attached to this drain pipe 33.
4 is provided.

A dehydrated material carrying device 35 is provided below the container 1 along the direction in which the container 1 is arranged.

This dehydrated material carrying out device 35 is composed of a conveyor belt 36, a large number of support rollers 37, etc.
7 may be replaced with a support plate.

38 is a trough-shaped drainage device, which is connected to the dehydrated material transport device 3.
They are arranged in parallel on the side of 5.

The filter device 15 and the temporary water storage tank 29 are configured so that their positions can be changed between above the dehydrated material transport device 35 and the drainage device 38.

That is, a vertical pin 41 is attached across an upper receiving plate 39 integral with the lower end flange 26 and a lower receiving plate 40 integral with the lower end flange 26, and a vertical pin 41 is connected to the vertical pin 41 from the cylindrical body 16 side. The installed upper lever 42 and lower lever 43
By releasing the fixture 28, the filter device 15 is rotatably mounted on the longitudinal axis 44.
The filter device 15 can be rotated around the filter device 15.
The temporary water storage tank 29 integrated with the dehydrated material transport device 35
and above the drainage device 35.

Reference numeral 45 denotes a rotation drive device, which is composed of a cylinder device attached via a vertical pin 47 to a bracket 46 protruding from the container 1, and whose piston rod is connected to the upper lever 4.
It is connected to the free end of 2.

48 is a suction device communicating with the temporary water storage tank 29;
a main suction pipe 49 parallel to the slurry material transport pipe 8;
A plurality of suction branch pipes 50 are branched from the main suction pipe 49 and have free ends opening at the upper part of the temporary water storage tank 29.
, an on-off valve 51 provided in each suction branch pipe 50 , and a suction pump (not shown), etc. Most of the suction branch pipes 50 are made of flexible hoses.

First, the dehydration work will be explained.

Before performing this dewatering work, the temporary water storage tank 29 is positioned above the dehydrated material carrying out device 35, and the individual fixture 28 is used to hold the lower end flange 26 and the upper end flange 27 in close contact with each other as shown in FIG. It is established.

Then, loosen the fastener 7 of the container 1 to be dehydrated,
The lid 3 is rotated around the vertical pin 5 as shown by the imaginary line in FIG. 2 and the partial diagram in FIG. 3 to open the inlet 2.

Next, the on-off valve 1 of the branch pipe 9 facing this inlet 2
0 is opened.

As a result, the slurry material flowing through the slurry material transport pipe 8 is charged into the container 1 via the branch pipe 9 and the input port 2.

The introduced slurry material is received by the pressure receiving plate 23 and gradually stored in the container 1.

At that time, some of the water passes through the water passage hole 22 due to its own weight, and after being filtered by the wire mesh 21, the water passes through the water passage hole 18.
and is temporarily stored in the water storage tank 29.

After a predetermined amount of slurry material is put into the container 1, the on-off valve 10 is closed, and the inlet 2 is closed with the lid 3 and locked with the fastener 7.

In this way: With the part from the container 1 via the filter device 15 to the temporary water storage tank 29 sealed, the suction pump of the suction device 48 is operated, and the on-off valve 51 is operated.
Open and operate.

As a result, the air inside the temporary water storage tank 29 is suctioned and removed, thereby making the inside of the temporary water storage tank 29 a negative pressure.

Then, with the on-off valve 51 closed, the on-off valve 14 is opened, and the compressed air flowing in the compressed air supply pipe 12 is blown out to the upper part of the container 1 through the branch pipe 13.

As a result, the pressure inside the container 1 is gradually increased, and the slurry material is pressed from above and squeezed.
Furthermore, since negative pressure is applied from the temporary water storage tank 29 side, the water accumulated in the gaps and the upper layer of the slurry material is sequentially discharged into the temporary water storage tank 29 through the wire mesh 21 and the like.

After the dehydration work has been sufficiently performed, open and close the on-off valve 14.
close and stop the supply of compressed air.

Then, the fixing device 28 is released, the rotation drive device 45 is activated, and the temporary water storage tank 29 is rotated together with the filter device 15 around the vertical pin 41. As shown in FIG. 6, it is located above the drainage device 38.

In this manner, as the filter device 15 moves away from the container 1, the lower end of the container 1 is gradually opened, and the dehydrated material in the container 1 is discharged onto the conveyor belt 36.

At that time, the inside of the container 1 is under high pressure as mentioned above, so the dehydrated material is discharged due to that pressure.
At this time, by further supplying compressed air, the discharge is almost completely carried out.

The discharged dehydrated material is transferred to, for example, a tank by the conveyor belt 36 and stored therein.

On the other hand, the water in the temporary water storage tank 29 is drained to the drain device 38 through the drain pipe 33 by opening the on-off valve 34.

FIG. 7 shows another embodiment of the suction device 48.

That is, the plurality of suction tubes 52 are arranged in a straight line with the small diameter tip 52a protruding into the base end, and the small diameter tip 52a
The free end of the suction branch pipe 50 is connected to the part into which the suction branch pipe 50 protrudes, and the proximal end of the suction branch pipe 50 is connected to the drain pipe 33.

Furthermore, a small-diameter tip 54 a of an airway pipe 54 communicating with the blower pump 53 is inserted into the suction pipe 52 at the end.

According to this, the air blowing by the operation of the blower pump 53 can produce an ejector action at the connecting portion of each suction branch pipe 50', thereby making it possible to make the temporary water storage tank 29 negative pressure and drain the water at the same time.

Moreover, the drainage device 38 can be omitted. As described above, according to the present invention, dehydration can be easily performed by simply supplying compressed air to the upper part of the container, which has a filter device and a temporary water storage tank at the lower end, and creating negative pressure by suctioning the inside of the temporary water storage tank. Therefore, it can be provided at a lower cost than conventional centrifugal separators or heat drying, and there is no change in the properties of the material.

Further, since the filter device can be moved to the drainage device side, the dehydrated material can be easily discharged onto the discharge device, and maintenance and inspection of the filter device can be performed extremely easily.

[Brief explanation of drawings]

1 to 6 show an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a plan view, FIG. 4 is a front view of main parts, and FIG. The figure is a longitudinal sectional front view of the main part, FIG. 6 is a cross-sectional plan view, and FIG. 7 is a front view of the main part showing another embodiment. 1... Container, 2... Inlet, 3'...
...Lid, 8...Slurry material transport pipe, 11
... Compressed air supply device, 12 ... Compressed air supply pipe, 15 ... Filter device, 19.
...Wire mesh support plate, 21...Wire mesh, 23.
...Pressure plate, 29...Temporary water storage tank,
33... Drain pipe, 35... Dehydrated material carrying out device, 36... Conveyor belt, 38...
... Drainage device, 44 ... Vertical axis, 45 ...
... Rotation drive device, 48 ... Suction device, 4
9...Suction main pipe, 40...Suction branch pipe,
52...Suction tube.

Claims (1)

[Scope of utility model registration request] a container having an input port for a slurry transport material at an upper end; a lid capable of opening and closing the input port; a compressed air supply device communicating with the upper portion of the container; and a filter device disposed in close contact with a lower end of the container. , a temporary water storage tank integrated into the lower end of the filter device, a dehydrated material carrying device disposed below the container, and a suction device communicating with the temporary water storage tank; 1. A dewatering device for slurry-transported materials, characterized in that, together with a temporary water storage tank, the dehydrated material carrying device is configured to be repositionable between a position above the dehydrated material carrying device and a position shifted to the side with respect to the above position.