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Automatic metallurgical heating agent adding device for continuous casting and collecting tailing billet

A heating agent and continuous casting technology, which is applied in the field of continuous casting technology and equipment in the metallurgical industry, can solve the problems of large tail blank quality differences, long adding time, large randomness, etc., and achieve improved molten steel yield, reduced solidification rate, and automation high degree of effect

Active Publication Date: 2020-06-26
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the arbitrariness of adding powder manually, there are lags and differences in judging the timing of adding metallurgical powder manually. The manual control of the continuous adding time of metallurgical powder is not accurate enough, and the adding time may be too long or too short. Phenomenon, and it is not easy to control the entire adding time, which will affect the effect of the final finishing billet, resulting in large defects in the quality of the tailing billet; in addition, it is easy to appear that the amount of addition between different flows is different, resulting in the difference between different tailing billets The quality of the product varies greatly, thus affecting the overall quality of the product
[0004] Therefore, in view of the working process and technical requirements of the continuous casting final billet, it is necessary to invent a metallurgical heating agent automatic adding device, which can overcome the defects of manual work, thereby improving the use efficiency of the metallurgical heating agent for the continuous casting final billet, and solving the problem of tailing billets. quality defects and improve the yield of molten steel

Method used

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  • Automatic metallurgical heating agent adding device for continuous casting and collecting tailing billet
  • Automatic metallurgical heating agent adding device for continuous casting and collecting tailing billet
  • Automatic metallurgical heating agent adding device for continuous casting and collecting tailing billet

Examples

Experimental program
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Effect test

Embodiment 1

[0043] A device for automatically adding metallurgical exothermic agent for continuous casting final billet in this embodiment, the overall arrangement in the continuous casting steel pouring area is as follows figure 2 As shown, it includes a control cabinet, a heating agent silo 60, a metallurgical heating agent feeding pipe 74 and a nozzle 75; wherein, the control cabinet is installed on the ladle operating platform 30, and its principle is to use a PLC control system to control and improve The degree of automation of the entire automatic joining device, such as figure 2 As shown, the control cabinet in this embodiment is divided into upper and lower parts. The upper part of the control cabinet is an injection control panel 41, which is a touch screen, and is used to control the start and stop of subsequent metallurgical heating agents, and control the addition of metallurgical heating agents to crystallization. The time of the device, etc.; the bottom of the control cabi...

Embodiment 2

[0069] The device for automatically adding metallurgical exothermic agent for continuous casting billet in this embodiment is basically the same as that of Embodiment 1, the difference is that the metallurgical exothermic agent feeding pipe 74 and the transition pipe 72 in this embodiment are connected by a tie The quick joint 73 is connected with each other, and the metallurgical exothermic agent feeding pipe 74 can be replaced quickly through the pull rod type quick joint 73, which greatly reduces the maintenance or replacement time of the automatic adding device, and is convenient for the operator to operate.

[0070] Preferably, the metallurgical exothermic agent feeding pipe 74 of this embodiment is also connected to the nozzle 75 through a pull-rod quick connector 73, and the rapid replacement of the nozzle 75 can be realized through the pull-rod quick connector 73, and the operator can process and produce according to actual conditions. If necessary, replace different no...

Embodiment 3

[0072] A device for automatically adding metallurgical exothermic agent for continuous casting billets in this embodiment is basically the same as that in Embodiment 2, except that:

[0073] In order to facilitate the uniform addition of the metallurgical heating agent into the crystallizer, so that the metallurgical heating agent can cover the entire molten steel surface more uniformly, and the automatic adding device can adapt to casting billets with different sections. In this embodiment, four-strand round billets are used as the E.g image 3As shown, the nozzle 75 of this embodiment is a special nozzle 75 for round billet continuous casting. The nozzle 75 of this embodiment includes a main body 751 and a nozzle 752, wherein one end of the main body 751 is connected with the metallurgical exothermic agent feeding pipe 74, and the main body The other end of 751 communicates with shower head 752 .

[0074] The main body 751 of this embodiment has a semicircular structure, an...

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Abstract

The invention discloses an automatic metallurgical heating agent adding device for a continuous casting and collecting tailing billet, and belongs to the technical field of metallurgical continuous casting equipment. The device comprises a control cabinet, a heating agent bin, a metallurgical heating agent feeding pipe and a nozzle, the lower end of the heating agent bin is in communication with one end of the metallurgical heating agent feeding pipe, the nozzle is in communication with the other end of the metallurgical heating agent feeding pipe, and the nozzle is located on the edge of a crystallizer; and the control cabinet is used for controlling the metallurgical heating agent in the heating agent bin to be added into the crystallizer. According to the automatic adding device, the metallurgical heating agent is added into the crystallizer, the whole process is controlled by the control cabinet, the metallurgical heating agent is sprayed into the crystallizer from the nozzle alongthe metallurgical heating agent feeding pipe, the adding time of the whole metallurgical heating agent is controlled to be not longer than 3 min, the manual participation amount in the whole processis small, and the degree of the mechanization and automation is high; and meanwhile, the using performance of the metallurgical heating agent can be effectively guaranteed, and the quality of a casting blank and the yield of molten steel are improved.

Description

technical field [0001] The invention relates to the field of continuous casting technology and equipment in the metallurgical industry, and more specifically relates to a device for automatically adding metallurgical exothermic agents for continuous casting finishing blanks. Background technique [0002] The molten steel is poured by the continuous casting machine to form a continuous casting slab. When the current pouring time is about to end, it is necessary to finish the billet work, shut down the main equipment of the continuous casting machine head one after another, and make preparations for the next casting time. In the prior art, the solidification structure state and defects of conventional continuous casting tail billets are as follows: figure 1 shown. After the pouring of the tundish is completed, the liquid level drops as the billet drawing progresses, and the tail billet is pulled out of the crystallizer. Due to the spraying effect of the secondary cooling wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/108B22D11/16B22D11/11
CPCB22D11/108B22D11/165B22D11/11
Inventor 邓爱军陈龙陶素芬范鼎东王海川
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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