Drive device for a stopper closure on a metallurgical vessel, including a housing arranged on the vessel in a removable manner, an adjustment system mounted in the housing so as to be height-displaceable and has a drive which can be coupled to the housing, and an upper connection element for a support arm carrying the fire-proof stopper. The adjustment system for the stopper is mounted so as to be height-displaceable on at least one bearing shaft fastened in the housing. This design of the adjustment system permits an increase in the stiffness of the drive device and hence of the fire-proof stopper suspended by the drive device on the support arm during pouring.

Drive device for a stopper closure on a metallurgical vessel, including a housing arranged on the vessel in a removable manner, an adjustment system mounted in the housing so as to be height-displaceable and has a drive which can be coupled to the housing, and an upper connection element for a support arm carrying the fire-proof stopper. The adjustment system for the stopper is mounted so as to be height-displaceable on at least one bearing shaft fastened in the housing. This design of the adjustment system permits an increase in the stiffness of the drive device and hence of the fire-proof stopper suspended by the drive device on the support arm during pouring.

Drive device for a stopper closure on a metallurgical vessel, including a housing arranged on the vessel in a removable manner, an adjustment system mounted in the housing so as to be height-displaceable and has a drive which can be coupled to the housing, and an upper connection element for a support arm carrying the fire-proof stopper. The adjustment system for the stopper is mounted so as to be height-displaceable on at least one bearing shaft fastened in the housing. This design of the adjustment system permits an increase in the stiffness of the drive device and hence of the fire-proof stopper suspended by the drive device on the support arm during pouring.

Drive device for a stopper closure on a metallurgical vessel, including a housing arranged on the vessel in a removable manner, an adjustment system mounted in the housing so as to be height-displaceable and has a drive which can be coupled to the housing, and an upper connection element for a support arm carrying the fire-proof stopper. The adjustment system for the stopper is mounted so as to be height-displaceable on at least one bearing shaft fastened in the housing. This design of the adjustment system permits an increase in the stiffness of the drive device and hence of the fire-proof stopper suspended by the drive device on the support arm during pouring.

A pouring metallic plug stick clamping mechanism for cast steel wheels. The mechanism includes: a cast iron frame, a plurality of grooves, a centrally located opening in the frame, a first white ceramic ball, a second white ceramic ball, a third white ceramic ball, a retaining spring, a pressure regulating bolt, a control press button, a metallic plug stick, and a blocking iron piece.

A pouring metallic plug stick clamping mechanism for cast steel wheels. The mechanism includes: a cast iron frame, a plurality of grooves, a centrally located opening in the frame, a first white ceramic ball, a second white ceramic ball, a third white ceramic ball, a retaining spring, a pressure regulating bolt, a control press button, a metallic plug stick, and a blocking iron piece.

A drip prevention device for a pressurized pouring furnace according to the present disclosure is a device 10 that prevents dripping of molten metal from a molten metal outlet of the pressurized pouring furnace The drip prevention device 10 includes: a stopper 20 that brings a lower end thereof into contact with the outlet so as to block the outlet, and is provided so as to be able to rotate about a central axis 20C of the stopper with no rotation angle limitation and move vertically above the outlet; a rotation motor 30 that rotates the stopper 20; a drip detection device 60 that detects dripping of molten metal from the outlet in a case where the dripping occurs; and a control device 70 that, in a case where a drip detection signal is received from the drip detection device 60, drives the rotation motor 30 to cause the stopper 20 to perform a predetermined rotation operation.

A drip prevention device for a pressurized pouring furnace according to the present disclosure is a device 10 that prevents dripping of molten metal from a molten metal outlet of the pressurized pouring furnace The drip prevention device 10 includes: a stopper 20 that brings a lower end thereof into contact with the outlet so as to block the outlet, and is provided so as to be able to rotate about a central axis 20C of the stopper with no rotation angle limitation and move vertically above the outlet; a rotation motor 30 that rotates the stopper 20; a drip detection device 60 that detects dripping of molten metal from the outlet in a case where the dripping occurs; and a control device 70 that, in a case where a drip detection signal is received from the drip detection device 60, drives the rotation motor 30 to cause the stopper 20 to perform a predetermined rotation operation.

A control device (1) for a stopper (3) comprises: an outer casing (10), a control rod (6) sliding through the casing (10), rigidly attachable to the stopper (3), a hydraulic circuit (20) including a double-acting hydraulic cylinder (21) and a reversible hydraulic pump (9), the hydraulic cylinder (21) having a first and a second chamber (21a, b) between which a piston (22) slides, the hydraulic pump (9) being connected directly to the first and second chamber (21a, b) by means of a first branch and a second branch (20a, b) of said hydraulic circuit (20, respectively, the piston being rigidly attached to the control rod (6), the hydraulic circuit (20) being entirely housed in the outer casing (10), a control circuit (30) connected to the hydraulic circuit (20) to control the position of the piston (22).

A control device (1) for a stopper (3) comprises: an outer casing (10), a control rod (6) sliding through the casing (10), rigidly attachable to the stopper (3), a hydraulic circuit (20) including a double-acting hydraulic cylinder (21) and a reversible hydraulic pump (9), the hydraulic cylinder (21) having a first and a second chamber (21a, b) between which a piston (22) slides, the hydraulic pump (9) being connected directly to the first and second chamber (21a, b) by means of a first branch and a second branch (20a, b) of said hydraulic circuit (20, respectively, the piston being rigidly attached to the control rod (6), the hydraulic circuit (20) being entirely housed in the outer casing (10), a control circuit (30) connected to the hydraulic circuit (20) to control the position of the piston (22).