Intermediate ladle drying and heating units

Intermediate ladle drying and heating units
Intermediate ladle drying and heating units
Intermediate ladle drying and heating units
Intermediate ladle drying and heating units

Modern ladle linings have excellent operational characteristics only if the strict requirements for temperature conditions of ladles are observed. It is especially important to properly dry the new lining, for failure to comply with the established conditions leads to cracking and chipping of fragments of the lining, reducing its service life, and for certain types of lining the noncompliance with drying conditions can lead to its disrepair.

Our concern has developed drying and heating units for intermediate ladle lining of various capacity and design. The units allow using ladles with any type of lining in your manufacture, ensuring the necessary temperature conditions, including intermediate ladle drying modes.

The Jet Technologies intermediate ladle lining drying and heating units

    • ensure drying and heating of intermediate ladles with various lining of both discrete and monolithic types
    • work in an automated mode by diagrams, developed individually for each type of lining

      The Jet Technologies intermediate ladle lining drying and heating units can realize diagrams of any complexity (piecewise linear and nonlinear); they also ensure the implementation of both long intermediate ladle drying modes, that last several days, and the modes of rapid heating of intermediate ladles for melting, lasting no less than 1 hour. In this case, at all stages of working through the diagram the unit observes all requirements for the speed of temperature increase (decrease), thermostating (observance of the required periods of exposures at given temperatures), as well as ensures even drying and heating of the whole ladle lining.

      Drying and heating are achieved through the use of the thermal energy of the burners at the temperature measured by thermocouples. Temperature measurement can be realized either on the basis of thermoelectric converters or on the basis of infrared pyrometers. The process of drying and heating can be switched to manual control when necessary.

      The lining of the cover is made with special technology from modern refractory fiber materials or refractory concrete. The service life of the cover lining, without intermediate repairs, is no less than 1 year and may reach 2-4 years if operated properly.

      The unit control system is designed on the basis of a programmable industrial controller.

      The units’ robust construction ensures long service life with minimal technical servicing.

      The units are made to meet the requirements and manufacture characteristics of the client.

      Possible configurations of intermediate ladle drying and heating units:

      • Drying units, heating units, drying and heating units. As a rule, drying of intermediate ladles is performed on the site for intermediate ladles repair, in this case, the intermediate ladle is set on a fixed platform. Intermediate ladle heating units are usually placed on operating platforms for continuous-casting plants and ensure heating for the intermediate ladle before casting; in this case the intermediate ladle is set on a cart and moved along the rail track.
      • Units with lifting or movable intermediate ladle covers.
      • Units working with or without stoppers installed on the intermediate ladle.
      • The units may include systems of heat recovery.
      • Various types of fuels may be used (natural gas, a mixture of natural, coke and blast furnace gas, diesel fuel, etc.).

      The use of our intermediate ladle drying and heating stands ensures the following technical and economic effects:

        • Reduction of thermal losses during tapping of steel. Achieved through extensive heating of the intermediated ladle lining to the temperatures of 1100-1200 ˚ C
        • Refractory saving. Achieved through a significant increase in the refractories’ service life as a result of drying and heating of the ladle in strict conformity with the recommendations of the lining manufacturer, which prevents the lining from cracking and chipping.
        • Reduction of natural gas consumption. Achieved through the optimized gas-dynamic characteristics of the torch, uniform heat exchange across the inner surface of the ladle and optimum factors of heat emission at all stages of drying and high temperature heating of the ladle. Achieved by using heat recovery of the flue gases
        • Reduction of energy consumption. Achieved through optimization of the process, resulting in reduced power consumption and the actual operating time of the units of power consumption.
        • Improved structure of steel in terms of inclusion content. Quality drying and heating of the intermediate ladle lining prevents the chipped off lining pieces from getting into the steel.

        We are ready to answer all your questions regarding the technology solutions and operating characteristics of our equipment.
        Please contact us for more information and to order the equipment

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