JPS5886382A - Suction head - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves sucking scum (slag) on the surface of molten gold islands,
The present invention relates to a suction head of a scum removing device that cools and solidifies the scum by injecting water once at the suctioned scum.

The present applicant first sprays water onto the scum sucked into the scum suction path from a water injection port placed on the inner periphery of one end of the cylinder forming the scum suction path, thereby promoting cooling and solidification of the scum. We are proposing a suction head with a similar shape. still,
In the above-mentioned suction head, there is also a suction head equipped with an opening/closing device that opens and closes the passageway to the water injection port so that the water supply can be cut off immediately in the event of an abnormal change in suction pressure, etc. Since the opening/closing device' is disposed on the outside of one end of the cylinder, even when the cylinder is cooled with water in the annular cooling water storage space surrounding it, the one end of the cylinder is There was no koji that could be cooled in water. However, one end of the cylinder has the highest temperature of suction scum in the scum suction path, and is also a place where scum that has not yet been given water may exist, so this part especially requires water cooling. .

In view of the above problems, the present invention aims to provide a suction head in which one end of a cylindrical body in which an opening/closing device for a passageway is arranged is water-cooled.

The present invention provides a cooling water passage in which a switching device for opening and closing a passageway for supplying water to a water injection port is disposed outside one end of a cylinder, and a cooling water passage is provided between the switching device and the inner peripheral surface of the cylinder. A suction head is provided in which a water passage is communicated with a water passage, and one end of the cylindrical body is water-cooled by a portion of water supplied from the water passage passing through the cooling water passage.

Hereinafter, one embodiment of the present invention will be described based on the drawings. (
1) is a suction head with a suction port (2) at one end.
The other end is connected to the suction pipe (3), and there is a scum suction path (4) that communicates the suction port (2) and the suction pipe (3) inside.
have. In (5), the inner peripheral surface is nfl nip,! ,
It is a cylindrical body that forms a scum suction path (4), and one end (
5a) extends near one end of the suction head (1);
The other end (5b) is in contact with the connecting end surface of the suction tube (3). The cylindrical body (5) consists of a cylindrical body (6) that extends over the entire length in the longitudinal direction, and a sleeve (7) that has a base on the outer periphery of one end of the cylindrical body (6). ) one end (6
a) is a stepped portion (7) protruding from the inner periphery of one end of the sleeve (7);
a), and one end of the sleeve (7) engages with the one end of the cylindrical body (
5a) is formed. A cooling water passage V@(8) is formed between the outer periphery of one end of the tube body (6) and the inner periphery of the sleeve (7). An outer cylindrical body (9) is provided with a load-bearing body at intervals on the outer periphery of the tube (5), and an annular cooling water storage space 00 is formed between the cylindrical body (5) and the outer cylindrical body (9). A suction cap (B) is screwed and attached to -II (9a) of the outer cylinder (9).The other end (9b) of the outer cylinder (9) is
Annular body 0 → one end (
12a) A water supply pipe (to) which is fixed to the outer periphery and supplies water to the cooling water storage space 0* is connected to/near the other end (9b) of the outer cylinder body. The other end (12b) of the annular body o4 is a suction tube (3)
The other end (12b) of the annular body is connected and fixed with bolts etc. in contact with a connecting flange (3a) protruding from the outer periphery of the connecting end of the annular body.
An annular protrusion (5c) protruding from the outer periphery of the other end (5b) of the cylindrical body engages with the inner periphery of the chest (12c), thereby positioning the cylindrical body (5) in the axial direction. An annular four part α→ is formed on the inner periphery of the axially intermediate part of the annular body 0 years old, and the annular four part (14
A return water storage space 0Q is formed between 1 and the outer periphery of the other end of the cylinder. A reflux pipe (g) communicating with the reflux water storage space (g) is connected to the annular body (6). The suction cap α◇ extends radially inward with a gap in the axial direction between it and the one end (5a) of the cylinder body, and the inner curved surface (lla) of the end on the one end side of the suction head (1) is formed at one end. It is formed into a smooth circular arc surface that gradually becomes larger in diameter, and constitutes the suction port (2). On the inner periphery of the other end side of the suction head (1) of the suction mouthpiece 09, there is provided
From the threaded part (llb) with the inner peripheral surface of the end
a), in the axial direction so as to face the large-diameter first shoulder (llc), the small-diameter second chest (lid), and the second waste portion (lid) with an interval in the radial direction. A protruding annular protrusion (lie) is formed. The annular projection (lie)
The height is lower than the second part (lid) of Uo, and there is an annular recess between these annular protrusions (lie) and the second shoulder part (lid) to inject water with equal pressure. A groove aη is formed. The second chest (lid) K includes a cylindrical part (18a) that fits into the inner circumferential surface of one end of the 1t1 cylindrical body (5) with a gap therebetween, and a suction head (1) of the cylindrical part (18a). ] A water injection port forming member that extends outward in the radial direction from one end side edge and has an inner circumferential portion thereof including the annular protrusion (lie) and a mounting portion (18b) facing in the axial direction with a gap K. (G) The outer periphery of the mounting portion (18b) is screwed together and attached.The water injection port forming member (rumor and suction cap 01)
A first water injection port that injects water radially inward through a gap between the annular protrusion (1ie) and the inner periphery of one end of the water injection port forming member (G) and the cylinder (5) A second water injection shell υ is formed by the gap between the surface and the second water injection shell υ, which sprays water in the axial direction along the inner circumferential surface of the hook body (5).

At the attachment part (18b) of the water injection orifice forming member 0 barrel, there is a MiJ water fountain formed between one end (5a) of the cylinder (5) and the suction mouthpiece αυ and the water injection orifice forming member (g). injection port)
A communication hole is separately provided to communicate the water passageway (e) that supplies water to eη with the annular groove αη. The sleeve (
On the outer periphery of 7), there is a shutter (as an opening/closing device for the water passageway (A)) at a closed position where the shutter is in contact with the sealing material (C) provided on the suction mouthpiece θη, and one end of the cylinder body (5a). ) are fitted externally so as to be slidable in the axial direction between the open position and the open position lined up.
A piston (2) is provided at the other end of the shutter muzzle (v) with a bulge projecting outward in the radial direction. Said sleeve (7)
The other end is formed with a bulge (C) having a first bulge (C) with an outer diameter corresponding to the outer circumference of the piston (E) and a second bulge ψ with an even larger diameter. has been done. On the outer periphery of the piston ① and the first bulge part, there is a piston housing cylinder whose wall thickness is thinner than the difference in diameter between the first bulge part) and the second bulge part (b).
is airtightly fitted to the outside, and communication holes (30a) and (30b) are formed at both ends in the axial direction of the piston housing cylinder, and a corner of the inner periphery of the other end is cut out to form a communication hole (30b). ) The annular communication passage (3I) that communicates with the first bulge and the second bulge ■
is formed at the corner of the connecting step. The piston-accommodating cylindrical body has an axial length of the first swelling portion (7) and the piston) and a shutter q,! The stroke length of the cylinder (2), the distance Nr from one end of the cylinder (2) to the communication hole (30a), and the communication hole (30a)
It has a length that is the sum of the length of the diameter of a). On the outside of the piston housing cylinder, one end is provided with the suction cap (11).
A passage j that fits internally into the first chest (llc) of the sleeve and whose other end fits externally in a watertight manner around the second bulge (b) of the sleeve (noted Nrt).
A single cylinder body (321) is disposed, and the passage J-shaped cylinder body (9
) An annular protrusion (831 protrudes) on the inner periphery of the intermediate position in the axial direction, one end of which is in contact with the side surface of the piston housing cylinder, and whose inner periphery is movable relative to the outer periphery of the shutter q and is fitted in a liquid-tight manner. has been done.

The passage-forming cylindrical body (near one end of the third audience has a cooling water storage space o)
Connecting the inside of Q and the itl waterway.] 11.
4) is perforated. The shutter (e), its piston (c), the piston housing cylinder, the passage forming cylinder, the audience sleeve (7), its %l bulge <All, and the shank surrounded by the piston housing cylinder body. A second pressure chamber (35b) is formed to drive the piston to the closed position, and the first pressure chamber (35a) has a communication hole (30a) located in the direction of the piston-accommodating cylinder and the passage-forming cylinder. Tsu WJ (:%'),
Through the communication hole (30b) and the annular communication path (31), it communicates with the communication path (37a) formed in the enlarged portion (c) so as to open on the other end surface of the sleeve (7).See Fig. 3. ), the communication path (
37a) and communicates with a communication passage (37b) formed so as to open at the other end surface of the sleeve (7) adjacent to the sleeve (7) in the circumferential direction (see FIG. 4). Near one end of the sleeve (7),
Nine through holes (c) communicating with one end of the cooling water passageway (8) are provided, and one through hole (in the axial direction that communicates implicitly and corresponds to the stroke length of the shutter (c)) is provided on one outer periphery. Four annular parts @9) having a length are formed, and the shutter (A) is provided with a through hole (4o) that communicates the four annular parts (391 with the water passage (2). The other end of the water passage (8) is a communication passage formed in the enlarged part of the sleeve (7) at appropriate intervals in the circumferential direction so as to open at the other end surface of the sleeve (7), similar to the communication passage (37a). (4
1) (see Figure 2, the annular body (2)
One end (12a) communicates with air connection ports (42a) and (42b) formed on its outer circumferential surface and the communication path (3).
7a) The annular body (2) formed corresponding to (37b) has a continuous JM circuit (43a
) IjF1 on one end surface of the annular body CL4 formed corresponding to
A communication path (4) is provided.The communication path (3) is
7aX37b) and (43a) (43b) and (41)
and (44) are communicated with each other by a communication pipe extending between the sleeve (7) and the annular body (1'4) within the cooling water storage space QO.

In the above configuration, when cooling water is supplied from the water supply pipe (Koji), the cooling water enters the cooling water storage space (10) and enters the cylinder (5).
) flows toward one end of the suction head (1), and when it reaches one end of the cylinder (5), it flows from the other end of the sleeve (7) through the outside of the passage-forming cylinder 132, through the water passage hole H, and into the water passage. ), the first water injection low and the second water injection port e
It is injected from υ into the suction path (4). Said waterway (2)
As shown in Figures 1 and 2, some of the cooling water that has entered the through hole α (2) of the shutter in the open position, the annular portion (39) of the sleeve (7), and the through hole O barrel. through the
The cooling water enters the cooling water passage (8) formed at one end of the cylindrical body (5) to cool the one end of the body, and then passes through the communication passage (4'l) formed at the other end of the sleeve (7). The communication passage (4) formed at one end of the annular body enters the return water storage space (to) and exits from the return pipe (G). As mentioned above, the cooling water flows from the rainwater injection port - Vυ. When injecting air, the shutter pane is in a position where the passageway (a) is opened, which communicates the air connection port (42a) with the pressure air source and connects the air connection port (42a) with the pressure air source.
2b) is open to the atmosphere. That is, as shown in Figs. 1 and 3, the pressurized air supplied from the air connection port (42a) is connected to the communication passage (43a), the communication pipe -, the communication passage (37a), the annular communication 1Mkl+, and the communication hole. (30b
), is supplied to the first pressure chamber (35a) through the passageway (3!) and the communication hole (30a), and pushes up the side next to the piston to position the shutter in the open position.Next, scum suction is stopped. or when stopping the water injection in an emergency, the air connection port (42b) is connected to a pressure air source and the air connection port (42a) is opened to the atmosphere.Then, as shown in FIGS. 1 and 4, The pressurized air is connected to the communication path (43b),
It flows into the second pressure chamber (35b) via the communication pipe (37b), and pushes down the piston unit to move the shutter blade to the closed position 1-.In this way, the water passageway (A) is shut off, and the water injection from both water injection ports → (A) (υ is automatically stopped. On the other hand, the cooling water from the water passageway (A) on the upstream side of the shirt tank and Yosumo, Even if the shirt tongue 1 is in the closed position, the Kiji foramen (401 is the oval recess (39)
Since the water is in communication with the cooling water passage (8), it flows through the cooling water passage (8) as 3111 and exits from the M flow pipe (G) as described above. Therefore, even if water injection is stopped, cooling water 113/volume space (11)
The cylinder body (F
i) is water-cooled including one end thereof.

In the above embodiment, a cylinder having a circular cross section is shown, but the cylinder is not limited to a circular cylinder with a 19r plane, but also includes hollow cylinders having other cross-sectional shapes.

According to the suction head of the present invention, as is clear from the above description, a cooling water passage is provided between the inner circumferential surface of one end of the cylindrical body and the opening/closing device of the passageway disposed on the outside thereof, and the cooling water Since the passage is communicated with the water passage, a part of the water supplied from the water passage to the water injection port passes through the cooling water passage, and one end of the cylinder body can be water-cooled.

[Brief explanation of the drawing]

The drawings show one embodiment of the suction head according to the present invention, and Fig. 1 is an overall front view taken longitudinally from the center line to the left half, and Fig. 2 is one end of the suction head cut to explain the flow of cooling water. Figure 3 is a vertical cross-sectional view of one end of the suction head cut to explain the shutter open state, and Figure 4 is a vertical cross-sectional view of one end of the suction head cut to explain the shutter open state. Figure 5 is a vertical cross-sectional view of one end of the suction head, Figure 5 is a cross-sectional view taken along the line V-V in Figure 1, and Figure 6 is a cross-sectional view of
FIG. 7 is a cross-sectional view taken along the line ■--■ in FIG. 1. . (1)...Suction head, (2)...Suction port,
(4)... Suction path, (5)... Cylindrical body, (6)...
Pipe body, (7)...Sleeve, (8)...Cooling water passage, (9)...Outer cylinder body, 01...Cooling water storage space, α
ρ...Suction mouthpiece, 01...Water injection port forming member, (A)...First water injection port, υ...Second water 11M injection port, Station...Water passage, )...Shutter (opening/closing device 9)

Claims (1)

[Claims] 1. A water injection port for injecting water into the scum suction path is provided near one end of the cylinder forming the scum suction path, and a water passage is provided to supply water to the water injection port, and the water passage is opened and closed. A suction head characterized in that an opening/closing device is disposed outside one end of the cylindrical body, and a cooling water passage communicating with the water passage is provided between the opening/closing device and the inner peripheral surface of the cylindrical body.