ROLLER QUENCHING FLOW ZONE CONTROL DEVICE FOR METAL PLATE STRIPS

Abstract

Heat treatment equipment for metal plate strips, and a roller quenching flow zone control device for metal plate strips. The device includes a middle water diversion ring sleeve and edge water diversion ring sleeves; the middle water diversion ring sleeve is installed at the middle processing groove in a slit nozzle rear spiral roller and a high-density nozzle rear spiral roller in a high-pressure cooling section of a roller quenching machine; and the edge water diversion ring sleeves are installed at the processing grooves in ¼ and ¾ positions in the width direction of the slit nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine. This can effectively realize uniform distribution of cooling water on the surface of the plate strip, reduce the phenomenon of local non-uniform cooling caused by siltation of cooling water.

Claims

1. A roller quenching flow zone control device for metal plate strips, wherein a metal plate strip enters a slit nozzle, a slit nozzle rear spiral roller, a high-density nozzle and a high-density nozzle rear spiral roller in a high-pressure cooling section of a roller quenching machine in sequence; the control device comprises a middle water diversion ring sleeve and edge water diversion ring sleeves; the middle water diversion ring sleeve is installed at the middle processing groove in the slit nozzle rear spiral roller and the high-density nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine; and the edge water diversion ring sleeves are installed at the processing grooves in ¼ and ¾ positions in the width direction of the slit nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine; wherein the middle water diversion ring sleeve comprises an upper left semicircular water diversion ring sleeve, a lower left semicircular water diversion ring sleeve, an upper right semicircular water diversion ring sleeve and a lower right semicircular water diversion ring sleeve, and the inner diameters of the four semicircular water diversion ring sleeves are consistent with the outer diameter of the middle processing groove in the slit nozzle rear spiral roller and the high-density nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine; the outer diameters of the four semicircular water diversion ring sleeves are consistent and smaller than the outer diameter of the spiral roller in the high-pressure cooling section of the roller quenching machine by 5 mm-10 mm, spiral drainage grooves are designed in the outer surfaces of the semicircular water diversion ring sleeves, the rotation direction of the spiral drainage grooves in the outer surfaces of the upper left semicircular water diversion ring sleeve and the lower left semicircular water diversion ring sleeve is consistent with that of the drainage groove in the left connected spiral roller, and the rotation direction of the spiral drainage grooves in the outer surfaces of the upper right semicircular water diversion ring sleeve and the lower right semicircular water diversion ring sleeve is consistent with that of the drainage groove in the right connected spiral roller; and the four semicircular water diversion ring sleeves are tightly connected and fixed according to the distribution positions to form the whole middle water diversion ring sleeve; each edge water diversion ring sleeve comprises an upper semicircular water diversion ring sleeve and a lower semicircular water diversion ring sleeve, and the inner diameters of the two semicircular water diversion ring sleeves are consistent with the outer diameters of the processing grooves in ¼ and ¾ positions in the width direction of the slit nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine; and the outer diameters of the two semicircular water diversion ring sleeves are consistent and smaller than the outer diameter of the spiral roller in the high-pressure cooling section of the roller quenching machine by 5 mm-10 mm, spiral drainage grooves are designed in the outer surfaces of the semicircular water diversion ring sleeves, and the rotation direction of the spiral drainage grooves is consistent with that of the drainage groove of the spiral roller connected therewith.

2. The roller quenching flow zone control device for metal plate strips according to claim 1, wherein the spiral drainage grooves have depths of 6 mm-8 mm and widths of 20 mm-30 mm.

3. The roller quenching flow zone control device for metal plate strips according to claim 1, wherein the middle water diversion ring sleeve also comprises two connecting plates, bolt fixing holes are formed in the connecting plates and correspond to bolt counterbores in the outer surfaces of the joints of the upper left and right semicircular water diversion ring sleeves and the lower left and right semicircular water diversion ring sleeves, and connecting plate mounting grooves are formed in the joints of the upper left and right semicircular water diversion ring sleeves and the lower left and right semicircular water diversion ring sleeves and have the same dimension as the connecting plates.

4. The roller quenching flow zone control device for metal plate strips according to claim 1, wherein the edge water diversion ring sleeve also comprises two connecting plates, bolt fixing holes are formed in the connecting plates and correspond to the bolt counterbores in the outer surface of the joint of the upper semicircular water diversion ring sleeve and the lower semicircular water diversion ring sleeve, and connecting plate mounting grooves are formed in the joint of the upper semicircular water diversion ring sleeve and the lower semicircular water diversion ring sleeve and have the same dimension as the connecting plates.

5. The roller quenching flow zone control device for metal plate strips according to claim 1, wherein no edge water diversion ring sleeve is installed in the ¼ and ¾ positions in the width direction of the high-density nozzle rear spiral roller in the high-pressure cooling section of the roller quenching machine.

Description

DESCRIPTION OF DRAWINGS

[0022] FIG. 1 is an arrangement diagram of a roller quenching flow zone control device for metal plate strips in the present invention;

[0023] FIG. 2 is a diagram showing the shape and structure of a roller quenching flow zone control device for metal plate strips in the present invention; (a) middle water diversion ring sleeve, (b) edge water diversion ring sleeve on one side, (c) edge water diversion ring sleeve on the other side.

[0024] In the figures, 1 plate strip; 2. high-pressure cooling section of roller quenching machine; 3 slit nozzle; 4 slit nozzle rear spiral roller; 5 high-density nozzle; 6 high-density nozzle rear spiral roller; 7 middle water diversion ring sleeve; 8 edge water diversion ring sleeve; 9 upper left semicircular water diversion ring sleeve; 10 upper right semicircular water diversion ring sleeve; 11 mounting groove; 12 connecting plate; 13 bolt fixing hole; 14 bolt counterbore; 15 lower left semicircular water diversion ring sleeve; 16 lower right semicircular water diversion ring sleeve; 17 fastening bolt; 18 upper semicircular water diversion ring sleeve; and 19 lower semicircular water diversion ring sleeve.

DETAILED DESCRIPTION

[0025] Embodiment 1 provides the concrete implementation process of a roller quenching flow zone control device for metal plate strips of the present invention, as shown in FIG. 1. The plate strip 1 passes through the slit nozzle 3, the slit nozzle rear spiral roller 4, the high-density nozzle 5 and the high-density nozzle rear spiral roller 6 in sequence after entering the high-pressure cooling section 2 of the roller quenching machine. When the plate strip 1 passes through the slit nozzle rear spiral roller 4, the jet cooling water in the middle part of the slit nozzle 3 passes through the middle water diversion ring sleeve 7 of the slit nozzle rear spiral roller 4 and then is diverted to both sides in an orderly manner, which prevents the siltation of cooling water in the middle part of the plate strip 1 in the width direction and realizes orderly and uniform drainage of the cooling water to both sides; and the cooling water near the ¼ and ¾ positions in the width direction of the slit nozzle 3 passes through the edge water diversion ring sleeves 8 of the slit nozzle rear spiral roller 4 and then is diverted to both sides of the plate strip 1 in the width direction in an orderly manner, which prevents the siltation of cooling water near the ¼ and ¾ positions in the width direction of the plate strip 1 and realizes orderly and uniform drainage of the cooling water to left and right sides. When the plate strip 1 passes through the high-density nozzle rear spiral roller 6, the jet cooling water in the middle part of the high-density nozzle 5 passes through the middle water diversion ring sleeve 7 of the high-density nozzle rear spiral roller 6 and then is diverted to both sides in an orderly manner, which prevents the siltation of cooling water in the middle part of the plate strip 1 in the width direction and realizes orderly and uniform drainage of the cooling water to both sides; and as the jet cooling water volume of the high-density nozzle 5 is less than that of the slit nozzle 3, the siltation of the cooling water near the ¼ and ¾ positions in the width direction of the plate strip 1 has little impact on the non-uniform cooling of the surface of the plate strip 1, and no edge water diversion ring sleeve 8 is designed in the ¼ and ¾ positions in the width direction of the high-density nozzle rear spiral roller 6. When the tail of the plate strip 1 leaves the high-pressure cooling section 2 of the roller quenching machine, the concrete implementation process of the roller quenching flow zone control device for plate strip ends.

[0026] Embodiment 2 provides the concrete installation process of a roller quenching flow zone control device for metal plate strips of the present invention, as shown in FIG. 1 and FIG. 2. The middle water diversion ring sleeve 7 is installed at the middle processing groove in the slit nozzle rear spiral roller 4 or the high-density nozzle rear spiral roller 6 in the high-pressure cooling section 2 of the roller quenching machine. During installation, first, the upper left semicircular water division ring sleeve 9 and the upper right semicircular water division ring sleeve 10 are aligned and placed at the middle processing groove of the slit nozzle rear spiral roller 4 or the high-density nozzle rear spiral roller 6 in the high-pressure cooling section 2 of the roller quenching machine, two connecting plates 12 are respectively placed in the mounting grooves 11 in the joints on both sides, and bolt fixing holes 13 in the connecting plates 12 correspond to bolt counterbores 14 in the outer surfaces of the upper left semicircular water division ring sleeve 9 and the upper right semicircular water division ring sleeve 10; then the lower left semicircular water division ring sleeve 15 and the lower right semicircular water division ring sleeve 16 are aligned and placed at the middle processing groove of the slit nozzle rear spiral roller 4 or the high-density nozzle rear spiral roller 6 in the high-pressure cooling section 2 of the roller quenching machine, and two connecting plates 12 are respectively placed in the mounting grooves 11 in the joints on both sides; and finally, fastening bolts 17 are respectively inserted into the bolt counterbores 14 in the outer surfaces, and the connecting plates 12 are fixed in the mounting grooves 11 in the joints of the upper left semicircular water division ring sleeve 9, the upper right semicircular water division ring sleeve 10, the lower left semicircular water division ring sleeve 15 and the lower right semicircular water division ring sleeve 16. The edge water diversion ring sleeves 8 are installed at the middle processing groove in the ¼ or ¾ position in the width direction of the slit nozzle rear spiral roller 4 in the high-pressure cooling section 2 of the roller quenching machine. During installation, first, the upper semicircular water division ring sleeve 18 is placed at the processing groove in the ¼ or ¾ position in the width direction of the slit nozzle rear spiral roller 4 in the high-pressure cooling section 2 of the roller quenching machine, two connecting plates 12 are respectively placed in the mounting grooves 11 in the joints on both sides, and bolt fixing holes 13 in the connecting plates 12 correspond to bolt counterbores 14 in the outer surface of the upper semicircular water division ring sleeve 18; then the lower semicircular water division ring sleeve 19 is placed at the processing groove in the ¼ or ¾ position in the width direction of the slit nozzle rear spiral roller 4 in the high-pressure cooling section 2 of the roller quenching machine, and two connecting plates 12 are respectively placed in the mounting grooves 11 in the joints on both sides; and finally, fastening bolts 17 are respectively inserted into the bolt counterbores 14 in the outer surface, and the connecting plates 12 are fixed in the mounting grooves 11 in the joint of the upper semicircular water division ring sleeve 18 and the lower semicircular water division ring sleeve 19. At this point, the concrete installation process of the roller quenching flow zone control device for metal plate strips ends.