CN-122007396-A - Baking device and method for embedded continuous casting tundish submerged nozzle

CN122007396ACN 122007396 ACN122007396 ACN 122007396ACN-122007396-A

Abstract

The application provides a baking device and a baking method for an embedded continuous casting tundish submerged nozzle, comprising a driving transmission mechanism, wherein the driving transmission mechanism comprises a transmission sub-mechanism, the transmission sub-mechanism is arranged on a supporting frame body so that a transmission end of the transmission sub-mechanism can move along a first direction relative to the supporting frame body, the baking mechanism comprises a rotating sub-mechanism and a baking sub-mechanism, the rotating sub-mechanism is connected with the transmission end of the transmission mechanism so that the baking mechanism moves along the first direction along with the transmission sub-mechanism, the baking sub-mechanism is arranged on the rotating sub-mechanism, and the rotating sub-mechanism is used for driving the baking sub-mechanism to rotate along an axis of the baking sub-mechanism. The baking mechanism is driven to move into the submerged nozzle by the driving transmission mechanism, the submerged nozzle is baked in a rotating mode and then baked in a rotating mode accompanied with reciprocating motion, so that the submerged nozzle is heated uniformly, the baking effect is good, the casting quality of the submerged nozzle is prevented from being influenced by over baking or under baking, and meanwhile, in the baking process, the site noise is greatly reduced.

Inventors

ZHANG JILIE
LUO YI
XU YUHANG
LIU CHENSHENG
HUANG CAIFU
LIN DANQUN
WANG WEIZHU
Liang Dagao
JIANG XIANGSHENG
LAI ZIYANG
LI GUANSHENG

Assignees

广东中南钢铁股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260209

Claims (10)

1. Baking device for embedded continuous casting tundish immersion nozzle, which is characterized by comprising A support frame body; The driving transmission mechanism comprises a transmission sub-mechanism, wherein the transmission sub-mechanism comprises a transmission end, the transmission sub-mechanism is arranged on the support frame body, and the transmission end of the transmission sub-mechanism can move along a first direction relative to the support frame body; the baking mechanism comprises a rotary sub-mechanism and a baking sub-mechanism, wherein the rotary sub-mechanism is connected with the transmission end of the transmission mechanism so that the baking mechanism moves along a first direction along with the transmission sub-mechanism, the baking sub-mechanism is arranged on the rotary sub-mechanism, and the rotary sub-mechanism is used for driving the baking sub-mechanism to rotate along the axis of the baking sub-mechanism.
2. The baking device for the submerged nozzle of the embedded continuous casting tundish according to claim 1, wherein the supporting frame body comprises a supporting tripod (102) and a first plate body (101), and the first plate body (101) is arranged along a first direction and is arranged at the top of the supporting tripod (102).
3. The baking device for the submerged nozzle of the embedded continuous casting tundish, as claimed in claim 1, wherein the driving transmission mechanism further comprises a first driving part (201), the first driving part (201) is arranged on the first plate body (101), the transmission mechanism further comprises a connecting end, and the connecting end of the transmission mechanism is connected with the output end of the first driving part (201).
4. The baking device for the submerged nozzle of the embedded continuous casting tundish, as claimed in claim 1, wherein the transmission sub-mechanism comprises a gear (202), a rack (203) and a guide assembly, the gear (202) is arranged at the output end of the first driving part (201), the guide assembly is arranged on the support frame body along the first direction, and the rack (203) is arranged on the guide assembly and meshed with the gear (202).
5. The baking device for the submerged nozzle of the embedded continuous casting tundish of claim 1, wherein the rotating sub-mechanism comprises a rotating cylinder, a rotating body and a fixed cylinder, the fixed cylinder is connected to the transmission end of the transmission mechanism through a second plate (304), and the rotating cylinder is connected with the fixed cylinder through the rotating body so that the rotating cylinder rotates relative to the fixed cylinder.
6. The baking device for the submerged nozzle of the embedded continuous casting tundish of claim 5, wherein the rotating sub-mechanism further comprises a second driving part and a transmission assembly, the transmission assembly comprises a main gear and a driven gear, the driven gear is sleeved on the rotating cylinder, the main gear is arranged at the output end of the second driving part and meshed with the driven gear, and the second driving part is arranged on the second plate body (304).
7. The baking device for the submerged nozzle of the in-line continuous casting tundish according to claim 5, wherein the baking sub-mechanism comprises a first air supply pipe (301), a second air supply pipe (303) and nozzles (302), wherein the first air supply pipe (301) is arranged along a first direction and is connected with one end of the rotating cylinder, which is away from the rotating body, so that the first air supply pipe (301) rotates along with the rotating cylinder, and a plurality of the nozzles (302) are arranged on the first air supply pipe (301) along the first direction; The second air supply pipe (303) is connected with one end of the fixed cylinder, which is away from the rotating body, and one end of the second air supply pipe (303), which is away from the fixed cylinder, is communicated with an air source.
8. Baking device for an in-line continuous casting tundish submerged nozzle according to any of claims 1 to 7, characterized in that the baking device further comprises a temperature measuring module (5), the temperature measuring module (5) being arranged at the top of the drive transmission mechanism.
9. The baking device for an embedded continuous casting tundish submersed nozzle according to claim 8, further comprising at least three limiting modules (4), wherein three limiting modules (4) are arranged on the supporting frame body along a first direction.
10. A baking method of a baking device of an embedded continuous casting tundish immersion nozzle is characterized in that, a baking apparatus employing the submerged nozzle of an in-line continuous casting tundish as claimed in any one of claims 1 to 9, the baking method comprising: after the tundish is baked to the casting target temperature, starting a baking mechanism and driving a transmission mechanism based on a preset time node, and driving the transmission mechanism to drive the baking mechanism to rise from an initial position to a working position so as to enable the baking sub-mechanism to move into the submerged nozzle; If the temperature of the submerged nozzle is monitored to not reach the preset temperature target value corresponding to the current fire amount, dynamically adjusting the gas flow based on a baking mechanism to ensure that the preset temperature target value corresponding to the current fire amount is reached; when the preset time node of reciprocating baking is reached, the driving transmission mechanism drives the baking sub-mechanism to reciprocate along the first direction, and the immersed nozzle is continuously baked in a mode of rotating along with the reciprocating movement until reaching the preset target temperature of the immersed nozzle; and closing the driving transmission mechanism and the baking mechanism based on the driving of the driving transmission mechanism to move to the initial position.

Description

Baking device and method for embedded continuous casting tundish submerged nozzle Technical Field The application belongs to the technical field, and particularly relates to a baking device and a baking method for an embedded continuous casting tundish submerged nozzle. Background In the metallurgical continuous casting production process, molten steel flows through a crystallizer from a tundish, and in order to avoid the exposure of the molten steel, a tundish invasive nozzle is used for protection casting in the flowing process to prevent the molten steel from being secondarily oxidized. The tundish invasive nozzle is an important refractory material for a continuous casting tundish, and needs to be fully preheated before use, if the tundish invasive nozzle is not preheated or is insufficient to be preheated, the nozzle can be broken, and the refractory material is easy to crack, so that the quality of a casting blank is influenced. With the increasing requirement of casting blank quality, the tundish invasive nozzle commonly adopts an integral nozzle, and the straight hole integral nozzle is applied to a small-section crystallizer. For the baking of the straight hole integral nozzle, the air draft type baking and the gas baking exist at present. The air draft type baking is to heat and bake the flame in the tundish into the integral nozzle by using an air inducing device at the lower end of the integral nozzle, and has the defects of long baking time (the baking time is more than 1 hour), poor baking effect at the lower part of the nozzle and large on-site air draft noise, and the gas baking is to directly bake the nozzle at the lower opening of the nozzle by using a gas device. Disclosure of Invention Therefore, the present application aims to provide a baking device and a baking method for an embedded continuous casting tundish submerged nozzle, which at least solve one technical problem mentioned in the background art. In order to solve the above problems, a first aspect of the present application provides a baking apparatus for an immersion nozzle of an in-line continuous casting tundish, comprising A support frame body; The driving transmission mechanism comprises a transmission sub-mechanism, wherein the transmission sub-mechanism comprises a transmission end, the transmission sub-mechanism is arranged on the support frame body, and the transmission end of the transmission sub-mechanism can move along a first direction relative to the support frame body; the baking mechanism comprises a rotary sub-mechanism and a baking sub-mechanism, wherein the rotary sub-mechanism is connected with the transmission end of the transmission mechanism so that the baking mechanism moves along a first direction along with the transmission sub-mechanism, the baking sub-mechanism is arranged on the rotary sub-mechanism, and the rotary sub-mechanism is used for driving the baking sub-mechanism to rotate along the axis of the baking sub-mechanism. Optionally, the support frame body includes support tripod and first plate body, first plate body is arranged along first direction, set up in support tripod top. Optionally, the driving transmission mechanism further comprises a first driving part, the first driving part is arranged on the first plate body, the transmission mechanism further comprises a connecting end, and the connecting end of the transmission mechanism is connected with the output end of the first driving part. Optionally, the transmission sub-mechanism comprises a gear, a rack and a guide assembly, wherein the gear is arranged at the output end of the first driving part, the guide assembly is arranged on the support frame body along the first direction, and the rack is arranged on the guide assembly and meshed with the gear. Optionally, the rotating sub-mechanism includes a rotating cylinder, a rotating body and a fixed cylinder, the fixed cylinder is connected to the transmission end of the transmission mechanism through a second plate, and the rotating cylinder is connected to the fixed cylinder through the rotating body, so that the rotating cylinder rotates relative to the fixed cylinder. Optionally, the rotary sub-mechanism further includes a second driving part and a transmission assembly, the transmission assembly includes a main gear and a driven gear, the driven gear is sleeved on the rotating cylinder, the main gear is disposed at the output end of the second driving part and meshed with the driven gear, and the second driving part is disposed on the second plate body. Optionally, the baking sub-mechanism comprises a first air supply pipe, a second air supply pipe and nozzles, wherein the first air supply pipe is arranged along a first direction and is connected with one end of the rotating cylinder, which is away from the rotating body, so that the first air supply pipe rotates along with the rotating cylinder; The second air supply pipe is connected with one end of the fixed cylinder, which is a