A temperature control system for the soaking section of an alloying furnace

Abstract

The invention relates to a temperature control system for a soaking section of an alloying furnace. The technical solution is: the temperature control system is composed of two temperature control devices and an automatic temperature control system; the two temperature control devices are symmetrically installed on the front and rear sides of the bellows frame (1) at the outlet end of the soaking section of the alloying furnace, The three three-position four-way electromagnetic valves (23) in the temperature automatic control system are connected with respective corresponding cylinders (19) in the temperature control devices on the front and rear sides through compressed air pipelines. Each temperature control device is composed of three layers of temperature control devices, and the left side plate (4) and right side plate (11) of each temperature control device are correspondingly fixed with a second connecting piece (3) and a third connecting piece (12 ), the second connecting piece (3) is hinged with the piston rod of the cylinder (19); the two ends of the wire rope (18) fixed on the first connecting piece (17) pass through the corresponding left pulley (2) and right pulley (13 ) is fixedly connected with the third connecting piece (12). The invention has the characteristics of high control precision, easy maintenance and long service life.

Description

technical field [0001] The invention belongs to the technical field of temperature control. In particular, it relates to a temperature control system for a soaking section of an alloying furnace. Background technique [0002] Alloying is a process in which the pure galvanized layer obtained by hot-dip plating is immediately subjected to coating diffusion annealing at 450~550°C to obtain a zinc-iron alloy coating with an iron content of 7~15%. The alloying temperature control process includes three processes of heating, heat preservation and cooling. The online equipment for alloying treatment consists of a heating furnace, a soaking furnace and a cooler. In addition, temperature measuring instruments and sensors are installed online to control the iron content and phase structure. Accurate and efficient control of the internal temperature of the alloying furnace is an important link to ensure the production quality of galvanized strip steel. [0003] At present, the tempe...

AI Technical Summary

Problems solved by technology

[0003] At present, the temperature at the outlet of the soaking section of some alloying furnaces in iron and steel enterprises is too low, and it is difficult to reach the temperature required by the process. The main reason is that the rising hot air flow in the soaking section flows out from the air outlets on both sides of the cooling section. resulting in excessive heat loss

In addition, with the change of the type of strip steel produced, the temperature required by the process also changes. The current production equipment cannot effectively control the different process temperatures.

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