Reverse multi-angle blowing and drying device

Abstract

The invention discloses a reverse multi-angle blowing and drying device and belongs to the field of rolling equipment. The reverse multi-angle blowing and drying device comprises pressure-reduction flow distribution grooves, positioning grooves, handles, upper-lower frame fixing grooves, fixing lugs, air inlet holes, blowing nozzles and a steel hole. The air inlet holes are located in the tail of a bottom frame. The blowing nozzles communicate with the air inlet holes. Each blowing nozzle is a conical open 360-degree ring-shaped beam nozzle with a leftward opening. According to the reverse multi-angle blowing and drying device, the direction of compressed air sprayed by the blowing nozzles is opposite to the rolling direction; semicircular grooves in the central axis of the bottom frame and semicircular grooves in the central axis of a top frame are combined into the steel hole; the steel hole communicates with the blowing nozzles, the pressure-distribution flow distribution grooves are distributed in the two sides of the steel hole, and the pressure-distribution flow distribution grooves are formed by combining the corresponding grooves in the bottom frame and the corresponding grooves in the top frame; and the design of the rear-arranged blowing nozzles is adopted, the crossed release manner is adopted, and water and gas are promoted to be combined and discharged smoothly, so that the surface of red steel is free of cooling water local residues, and the surface of a steel body is uniformly cooled.

Description

technical field [0001] The invention belongs to the field of steel rolling equipment, and more specifically relates to a reverse multi-angle purge drying device, which is a drying device for purging the surface of wire rods during high-speed wire rod rolling. Background technique [0002] At present, in the domestic high-speed wire rolling equipment, the structure of the water-cooling equipment is roughly the same, that is, in a group of water-cooling equipment, there are 9 water spray cooling devices, 2 water stripping devices and 1 gas purging and drying device. The distribution is: water spray cooling device, water stripping device and gas purging drying device. The principle is: after the high-speed wire rod is rolled at high speed by the rolling mill in the rolling direction, the temperature of the wire rod body rises, and it needs to be cooled by water to maintain the material requirements of the finished wire rod. At this time, the water spray cooling device works to ...

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Problems solved by technology

[0003] However, the traditional purging and drying device has the following disadvantages: 1) The integral structure design makes the drying device too heavy, which is not conducive to daily operation, replacement and cleaning; 2) There is no design of decompression and diversion tank, and the combined discharge of water and air is not smooth , the surface effect of the steel body needs to be improved; 3) The design of the front blowing nozzle, the blowing nozzle is located at the front of the drying device, due to the reaction force generated during the high-speed blowing process, the cooling water is brought into the dryer, affecting the cooling effect; 4) Bolts are used for installation and positioning. Although the fastness is guaranteed, it is inconvenient and flexible to replace

This application has strengthened the cooling effect on the surface of the wire rod to a certain extent, but the combined discharge of water and air in the reverse purge structure of the application is not smooth, resulting in poor cooling effect, and the cooling water on the surface of the wire rod still partially remains. In the end, the surface is not purged cleanly, and the red steel is not cooled uniformly, so the cooling effect of the steel surface needs to be improved.

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