Quenching equipment for large rings

Abstract

The invention relates to quenching equipment for large rings. The quenching equipment comprises a quenching tank, a mixer, a temperature monitor, a slag collector and a cooling circulating system and is characterized in that a lifting quenching platform is arranged in the quenching tank body, lifting mechanisms used for lifting the quenching platform are arranged at the outer sides of four corners of the quenching tank body, the lifting mechanisms are connected with the quenching platform via connecting pieces, and a plurality of pump-type circulating mixers are arranged at the outer sides of the peripheral tops of the quenching tank body. The quenching equipment has the advantages of saving energy, greatly reducing the quenching processing cost, and improving the mixing quality of quenching liquid; and the lifting quenching platform arranged in the quenching tank body is utilized to replace a traveling hoist to operate, the heated workpieces can be placed on the quenching platform for quenching treatment. Therefore, the utilization ratio of the travelling hoist and the operation efficiency of a heating furnace can be improved, great amount of energy can be saved, the time for operation of the traveling hoist can be shortened, and other operations are not affected by the traveling hoist.

Description

technical field [0001] The invention belongs to the technical field of heat treatment and quenching, in particular to a large-scale ring quenching equipment. Background technique [0002] Workpiece quenching mainly refers to that after the workpiece is heated to a certain temperature, it is rapidly cooled in the quenching medium to obtain the required microstructure and mechanical properties of the workpiece. Rapid and controlled cooling of the workpiece is important for optimum mechanical properties of the workpiece. This requires shortening the cooling time by stirring or forced circulation of the quenching agent. Without stirring, the natural heat exchange and evaporation of the quenching liquid will limit the heat transfer rate on the surface of the workpiece through the liquid film boundary layer. In this case, changing the temperature of the quenching agent has only a small effect on the cooling rate, and the strengthening of the stirring degree greatly reduces the re...

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Problems solved by technology

The entire quenching process of the workpiece is always hoisted by the crane, that is, one workpiece occupies one crane, which not only makes the crane unable to perform other operations, but also has a low utilization rate; moreover, the crane takes up a lot of space during operation. affect other work

In addition, the heating furnace can only be in an idle state when a workpiece is processed. It needs to wait for the crane to complete the quenching of the previous quenched workpiece before hoisting the workpiece to be heated into the heating furnace for heating treatment, which affects the heating efficiency of the workpiece. cause energy waste

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