JPS5813507B2 - Separation and discharge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a separating and discharging device that continuously separates and discharges particulate matter sucked in by a suction device.

For example, as a method for removing slag, etc. from the surface of the molten metal, there is a method of vacuum suctioning the slag, spraying water on the slag to rapidly cool it into granules, and separating and discharging the granulated slag.

By the way, in a separation and discharge device that separates and discharges this granulated slag, in order to enable continuous slag suction, it is necessary to separate and discharge the slag without breaking the negative pressure inside the device.

As such a device, there is a separation and discharge device in which a sub-hopper is connected to the lower stage of a cyclone-type separation hopper, and the discharge portions of both hoppers are opened and closed in a reverse manner, but because the discharge is intermittently, a large amount of slag cannot be produced. There are problems in separating and discharging the slag, and there are also problems in maintaining the negative pressure because fluctuations in the negative pressure can be avoided.Furthermore, since the slag is discharged intermittently, a large amount of heat is generated by the heat held by the slag while waiting for discharge. This generated steam and hindered the effectiveness of the vacuum pump.

The present invention proposes a separation and discharge device capable of solving such problems, and one embodiment thereof will be described below with reference to the drawings.

Reference numeral 1 denotes a cyclone type separation hopper forming a negative pressure chamber, and a lower end opening 2a of a suction device connecting pipe 2 forming a suction device communication port is located in the center of the upper part.

Further, an inflow pipe 3 for sucking slag is tangentially connected to the hopper peripheral wall on the side of the lower end opening 2a.

Therefore, when a suction device is connected to the suction device connection pipe 2 and suction is performed, the inside of the separation hopper 1 becomes negative pressure, and slag, water, and steam are sucked from the inflow pipe 3, and the slag and water flow downwards into the separation hopper 1 due to the cyclone effect. It falls and is separated from suction air and water vapor.

Seal packing 6 is attached to the lower end discharge port 4 of this separation hopper 1.
The sleeve 5 is attached with bolts and nuts through the
The sleeve 5 is submerged below a water surface 8 that communicates with an aquarium main body 7 disposed on its side.

In this embodiment, a pair of aquarium bodies 7 are provided on both left and right sides of the sleeve 5 at an appropriate interval, and the upper portions of both aquarium bodies 7 are communicated with each other by a communication gutter 9; A water tank is constituted by the gutter part 9,
The sleeve 5 is positioned at the center of the communication gutter section 9.

10 is a support stand for the separation hopper 1. Reference numeral 11 denotes an impeller disposed directly below the sleeve 5 for sending out the slag and water that have fallen through the sleeve 5 to the side water tank body 7, and a lower disk 12 having a mounting boss 13 in the center. , an upper annular plate 14 that fits over the lower end of the sleeve 5, and a blade 15 attached between these plates 12 and 14.

Reference numeral 16 denotes a bump-full plate that is provided facing the outer periphery of the impeller 11 at the connecting portion between the water tank body 7 and the communication gutter portion 9, and is designed to prevent the water in the water tank body T from rotating due to the rotation of the impeller 11. This is to prevent this.

On the other hand, the impeller 11 is fixed to the upper end of a rotating shaft 18 that passes through the center of the lower plate 17 of the communication gutter section 9 from below.

This rotating shaft 18 is rotatably supported by a bearing box 20 attached to the lower plate 17 via a mounting body 19, and is driven by a pulley 21 (not shown) fixed to the lower end of this rotating shaft 18. It is rotated by the device ■ A belt is wrapped around it so that it can be rotated.

In the bearing box 20, 22 is a bearing, 23 is a bearing holder/bearing cover, and 24 is a bearing cover.

Further, in the mounting barrel 19, 25 is a water seal boss portion through which the rotating shaft 18 passes toward the inside of the communication portion 9;
27 is the felt ring, 27 is the sleeve, and 28 is the sleeve holder.

Further, 29 is an over tank attached to the upper part of the aquarium main body 7, which communicates with the inside of the aquarium main body T via the weir plate 30,
Maintain a constant water level inside.

31 is a drain pipe from the overflow tank 29.

Reference numeral 32 denotes a slag removal lid provided at the bottom of the water tank body 7, but the slag accumulated in the water tank body 7 may be continuously discharged using a sludge conveyor or the like.

Since the configuration is as described above, the separation hopper 1 is
The slag and water separated from the suction air and water vapor and falling into the discharge part 4 are passed through the sleeve 5 to the impeller 11.
The water collides with the mounting boss 13 and is continuously discharged into the water tank body 7 on both sides by the action of the impeller 11.

At this time, the impeller 11 is given rotational force by the pulley 21, which discharges the slag and water into the water tank body 7, and at the same time a head that engages with the vacuum pressure (negative pressure) in the separation hopper 1 comes out. Water is allowed to infiltrate through several gaps between the outer periphery of the lower end of the sleeve 5 and the inner periphery of the upper annular plate 14 of the impeller 11 to block air from entering and to always maintain a water-sealed state. There is.

Therefore, the slag and water are continuously discharged into the water tank body 7 while the vacuum pressure (negative pressure) in the separation hopper 1 is maintained at all times.

The high-temperature slag discharged into the water tank body T is cooled within the water tank body T, and a part of the heat generates steam, which is released from the water surface into the atmosphere.

Further, since the impeller 11 is always immersed in water and cooled, the impeller 11 will not become hot even if it comes into contact with high-temperature slag.

The present invention can be implemented as shown in the above embodiments, and according to this, a large amount of slag can be continuously separated and discharged, and of course, during this time, the vacuum pressure in the negative pressure chamber is reduced. The high-temperature slag that is kept in a steady state and further separated is immediately and continuously discharged into the water tank by the impeller to be cooled, so the amount of water vapor flowing into the suction device can be reduced accordingly, and the suction device can be It can be made to work effectively.

Further, unlike an intermittent separation and discharge device, a complicated mechanical mechanism is not required, and the structure is simple.

[Brief explanation of drawings]

The drawing is a partially sectional front view showing an example of the present invention. 1... Separation hopper, 2... Aspirator connection pipe, 3... Inflow pipe, 7... Water tank body, 9... Communication Hibe, 11... impeller.

Claims (1)

[Claims] 1 A negative pressure chamber having a suction device communication port and an inflow pipe connected tangentially to the peripheral wall of this negative pressure chamber are provided, and an impeller located in a water tank is provided at a downward extension position of the negative chamber. A separation and discharge device characterized by: