flow control device

Abstract

The invention provides a flow control device which comprises a base frame, bearing seat assemblies, a second bearing seat assembly, a U-shaped flow groove, sealing joints, a lifting mechanism and a heating insulation cover, wherein the bearing seat assemblies include a first bearing seat assembly and the second bearing seat assembly, and the first bearing seat assembly comprises a first bearing seat and a first bearing which is connected with the base frame through the first bearing seat; the second bearing seat assembly comprises a second bearing seat and a second bearing which is connected with the base frame through the second bearing seat; the sealing joints include a first sealing joint and a second sealing joint; an inlet of the U-shaped flow groove is connected to one end of the first sealing joint and is fixed on the first bearing, and an outlet of the U-shaped flow groove is connected to one end of the second sealing joint and is fixed on the second bearing; one end of the lifting mechanism is hinged to the base frame, and the other end of the lifting mechanism is hinged to the U-shaped flow groove. According to the flow control device, molten metal only makes contact with the flow groove, no blockage and no driving mechanism exist in the molten metal, and the structure is simple and reliable.

Description

Technical field [0001] The invention relates to metal smelting technology, in particular to a flow control device. Background technique [0002] In the field of metallurgy and material processing, the molten metal is usually transported to the next process such as a casting machine or a casting mill through a launder, and the flow control accuracy in the launder is an important process parameter to ensure stable production in the next process. [0003] In the prior art, a plug and a flow control port are usually arranged in the flow groove, and the flow area is adjusted by controlling the relative position of the plug and the flow control port, thereby controlling the flow rate. For example, the patent application number is 201020100397.9, a utility model named as the aluminum liquid flow control device. This utility model uses the movement of floats under the action of buoyancy to drive the movement of the plug to adjust the relative position of the plug and the flow control port,...

AI Technical Summary

Problems solved by technology

The disadvantages of this patent are: 1. Transmission mechanisms such as the flow control frame and the adjusting nut on the launder occupy the upper space of the launder, the upper surface of the aluminum liquid is in an open state, the temperature drop of the aluminum liquid is relatively large, and moisture, dust 2. In order to adapt to the high temperature of the aluminum liquid, the parts in contact with the aluminum liquid, such as floats, plugs and baffles, are made of ceramic or graphite, and the sealing performance is poor. Complete sealing cannot be achieved when the process needs to be cut off

And ceramics, graphite, etc. are easy to be brittle or peeled off, resulting in out-of-control flow, and the brittle cracks or peelings enter the molten aluminum to form new inclusions, and the reliability is poor

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