CN-122007394-A - Bottom pouring type casting ladle with flow regulating function

CN122007394ACN 122007394 ACN122007394 ACN 122007394ACN-122007394-A

Abstract

The invention relates to the technical field of metallurgical casting, and discloses a bottom pouring ladle with a flow regulating function, comprises a casting ladle main body, a nozzle pocket brick, an upper plate mounting seat, a lower plate mounting seat, a main mounting seat, an upper corundum brick plate, a lower corundum brick plate, a linear motor and the like. The invention adds the upper corundum brick plate, the lower corundum brick plate and the fixing and limiting device at the bottom of the traditional bottom pouring ladle to form an integrated bottom pouring ladle with the flow regulating function, and the flow cross section area of the upper corundum brick plate and the lower corundum brick plate is changed by driving the lower corundum brick plate to move by the linear motor, thereby realizing the flow control of liquid metal. The whole set of bottom pouring ladle has compact and simple structure and strong universality, and is suitable for casting liquid metal such as molten steel, molten aluminum, molten iron and the like.

Inventors

YUAN MINXIN
Li Pubo
GAO JINXI
ZHU MIN
ZHANG PENGFEI
JIA PENG
FENG DI
An Xunxun

Assignees

六盘山实验室

Dates

Publication Date: 20260512
Application Date: 20260225

Claims (9)

1. The bottom pouring type casting ladle with the flow regulating function is characterized by comprising a casting ladle main body, wherein a nozzle pocket brick in interference fit with the casting ladle main body is arranged in the middle of the bottom of the casting ladle main body, a first nozzle is arranged on the nozzle pocket brick, an upper plate mounting seat in clearance fit with the nozzle pocket brick is fixedly connected below the casting ladle main body, and a second nozzle is arranged on the upper plate mounting seat; the outer bottom of the upper plate mounting seat is provided with a space for placing an upper corundum brick plate, the upper corundum brick plate is in clearance fit with the upper plate mounting seat, the third water gap on the upper corundum brick plate is correspondingly communicated with the first water gap and the second water gap up and down; the lower part of the upper plate mounting seat is fixedly connected with a main mounting seat with an inner cavity and an opening at the top, the main mounting seat is also provided with a bottom plate strip-shaped opening and a side plate opening, the outer wall of the main mounting seat corresponding to the side plate opening is provided with a linear motor, a motor telescopic rod of the linear motor extends into the main mounting seat through the side plate opening, the bottom plate bar-shaped opening is fixedly connected with a lower plate mounting seat which is slidably mounted in the main mounting seat, and the length direction of the bottom plate bar-shaped opening is consistent with the extending direction of the motor telescopic rod and the sliding direction of the lower plate mounting seat; the lower plate mounting seat is provided with a space for placing a lower corundum brick plate, the lower corundum brick plate is in clearance fit with the lower plate mounting seat, if a tightening spring is arranged between the lower corundum brick plate and the lower plate mounting seat, the pre-tightening force exerted by the pre-tightening spring enables the lower corundum brick plate to be clung to the upper corundum brick plate; the bottom of the lower plate mounting seat is provided with a bottom plate center opening which corresponds to the bottom plate strip-shaped opening up and down, a fourth water gap extending out of the lower corundum brick plate downwards penetrates through the bottom plate center opening and the bottom plate strip-shaped opening in sequence, and the fourth water gap can move to the lower part of the third water gap, so that the fourth water gap is correspondingly communicated with the third water gap up and down.
2. The bottom pouring ladle with the flow regulating function according to claim 1, wherein the outer surface of the nozzle pocket brick for being in clearance fit with the upper plate mounting seat, the inner wall of the space for placing the upper corundum brick plate in the upper plate mounting seat, the inner wall of the space for placing the lower corundum brick plate in the lower plate mounting seat and the inner wall of the cavity of the main mounting seat are all sprayed with refractory paint.
3. The bottom pouring ladle with the flow regulating function according to claim 2, wherein the refractory coating is an alumina ceramic high-temperature resistant coating, and the refractory coating is coated on the surface of the corresponding structure by adopting a plasma spraying method.
4. The bottom pouring ladle with the flow regulating function according to claim 1, wherein the upper corundum brick plate and the lower corundum brick plate are made of corundum refractory materials.
5. A bottom pouring ladle with flow regulating function according to claim 1 or 4, wherein an anti-adhesion coating is applied between the upper and lower corundum brick plates.
6. The bottom pouring ladle with the flow regulating function according to claim 1, wherein the bottom of the inner cavity of the lower plate mounting seat is provided with a spring mounting hole which is used for interference, and a plurality of pre-tightening springs are arranged in the pre-tightening spring mounting hole in a one-to-one correspondence manner.
7. The bottom pouring ladle with the flow regulating function according to claim 1, wherein the outer bottom of the lower plate mounting seat is provided with guide steel bars which are consistent with the length direction of the strip-shaped opening of the bottom plate at two sides, the main mounting seat is internally provided with a smooth boss and a smooth side wall after surface treatment, the guide steel bars slide on the smooth boss and are guided by the smooth side wall, and the guide steel bars are in clearance fit with the main mounting seat.
8. The bottom pouring ladle with the flow regulating function according to claim 1, wherein thermal deformation expansion gaps exist between the lower plate mounting seat and the upper corundum brick plate, the upper plate mounting seat and the main mounting seat.
9. The bottom pouring ladle with the flow regulating function according to claim 1 is characterized in that two ends of the main mounting seat in the extending direction of the strip-shaped opening of the bottom plate are limited, when the linear motor drives the lower plate mounting seat and the lower corundum brick plate to move to one end of the lower plate mounting seat to be limited, the fourth water gap is correspondingly communicated with the third water gap up and down, at the moment, the flow cross section area between the upper corundum brick plate and the lower corundum brick plate is maximum, the opening is maximum, and when the linear motor drives the lower plate mounting seat and the lower corundum brick plate to move to the other end to be limited, the fourth water gap and the third water gap are completely staggered, at the moment, the flow cross section area between the upper corundum brick plate and the lower corundum brick plate is zero, and the lower corundum brick plate completely closes a water gap channel.

Description

Bottom pouring type casting ladle with flow regulating function Technical Field The invention relates to the technical field of metallurgical casting, in particular to a bottom pouring ladle with a flow regulating function. Background In the process of smelting and casting steel, the flow and the casting speed of liquid metal directly influence the filling integrity and the internal quality of castings, and are core control parameters in the casting process. Too high a flow rate may cause defects such as air holes, slag inclusion, and the like. The surface defects such as sand inclusion, sand sticking and the like are easily generated due to the excessively low flow. Therefore, reasonable adjustment of liquid metal (such as molten steel) and molten iron flow rate according to the casting mould is important to casting quality. At present, the problems are mainly as follows: The existing bottom pouring ladle does not have the capability of adjusting liquid metal (such as molten steel) and molten iron, and a graphite stopper rod is required to be matched with a submerged nozzle, but the existing bottom pouring ladle depends on the proficiency of operators, so that the adjusting effect is poor, meanwhile, the graphite stopper rod is easy to adhere to cause liquid leakage, and the graphite stopper rod is easy to break, so that casting accidents are caused. Therefore, how to improve the current bottom pouring ladle structure and further realize the flow adjustment of liquid metal (such as molten steel) and molten iron is a key technology to be solved urgently by scientific researchers in the current metallurgical casting field. Disclosure of Invention In view of the above, the invention provides a bottom pouring ladle with a flow regulating function, which has the following specific technical scheme: The bottom pouring type casting ladle with the flow regulating function comprises a casting ladle main body, wherein a nozzle pocket brick in interference fit with the casting ladle main body is arranged in the middle of the bottom of the casting ladle main body, a first nozzle is formed in the nozzle pocket brick, an upper plate mounting seat in clearance fit with the nozzle pocket brick is fixedly connected below the casting ladle main body, and a second nozzle is formed in the upper plate mounting seat; the bottom of the upper plate mounting seat is provided with a space for placing an upper corundum brick plate, the upper corundum brick plate is in clearance fit with the upper plate mounting seat, a third water gap on the upper corundum brick plate is correspondingly communicated with the first water gap and the second water gap up and down, a main mounting seat with an inner cavity and a top opening is fixedly connected below the upper plate mounting seat, the main mounting seat is also provided with a bottom plate strip-shaped opening and a side plate opening, a linear motor is arranged on the outer wall of the main mounting seat corresponding to the side plate opening, a motor telescopic rod of the linear motor extends into the main mounting seat through the side plate opening and is fixedly connected with a lower plate mounting seat which is slidably arranged in the main mounting seat, the length direction of the bottom plate strip-shaped opening is consistent with the telescopic direction of the motor telescopic rod and the sliding direction of the lower plate mounting seat, a space for placing a lower corundum brick plate is arranged in the lower plate mounting seat, the lower corundum brick plate is in clearance fit with the lower plate mounting seat, a pre-tightening spring is arranged between the lower corundum brick plate and the lower plate mounting seat, the lower corundum brick plate is tightly attached to the upper corundum brick plate by the pre-tightening spring, the lower corundum brick plate is correspondingly provided with the lower corundum brick plate through the bottom of the upper plate, the lower plate is correspondingly provided with a fourth water gap, and the lower water gap is correspondingly communicated with the lower plate through the fourth water gap, and can move downwards to the bottom plate through the fourth water gap. Preferably, the outer surface of the nozzle pocket brick, which is used for being in clearance fit with the upper plate mounting seat, the inner wall of the space, which is used for placing the upper corundum brick plate, in the upper plate mounting seat, the inner wall of the space, which is used for placing the lower corundum brick plate, in the lower plate mounting seat and the inner wall of the cavity of the main mounting seat are all sprayed with refractory paint. Preferably, the refractory coating is an alumina ceramic high temperature resistant coating, and the refractory coating adopts a plasma spraying method to realize the coating of the surface of the corresponding structure. Preferably, the upper corundum brick plate and the lower corundum brick plate