Wire edge cooling device and wire edge cooling method

Abstract

The invention provides a wire rod edge cooling device and a wire rod edge cooling method thereof. The device comprises nozzles, each nozzle is connected with a cooling device assembly, and the cooling device assemblies are arranged in air ducts located on the lower portions of the two sides of a roller bed. The cooling device assemblies can move left and right through guiding parts of the cooling device assemblies, and therefore the whole cooling device assemblies can be adjusted in position to be aligned with coil lap-joint points so as to carry out cooling operation. By means of the device and the method, the temperature differences of coils can be adjusted in any position, especially the temperature of a phase change area can be adjusted, so that uniformity of the temperature of the phase change area is guaranteed, structure uniformity is directly guaranteed, and product performance is consistent. According to the device and the method, air mist sprayed from edge cooling equipment can be better blown to wire rods, and water mist which is not gasified is blown to the position above the roller bed and does not drop, so that the air ducts, fans and the like are not influenced. In addition, the device is arranged in the length direction of the Stelmor line and can be lengthened or shortened, the number of switch sets is adjustable, and the sufficient temperature difference adjusting capacity is achieved. In addition, the carbon and oxidation problems in the lap-joint point positions can be solved, and the site operation environment is improved.

Description

technical field [0001] The invention relates to a material cooling device and a cooling method, in particular to a device and cooling technology for controlling and cooling the wire rod after rolling, which are applied in the wire rod production line of the Stelmore cooling line. Background technique [0002] At present, in the production process of various iron and steel production enterprises, there are many controlled cooling methods involving strip wire production lines, among which the most widely used is the Stelmore line-a method based on the transformation law of the steel structure during cooling. A controlled cooling process is designed, the cooling process is as follows: [0003] 1. The coils from the laying machine are spread on the roller table, and there are arrays of fans under the roller table; [0004] 2. The cold air blown by the fan passes through the air duct and blows from the bottom of the roller table to the coil on the roller table to cool the coil. ...

AI Technical Summary

Problems solved by technology

[0009] However, in the actual application process of this invention, due to factors such as the roller table section set up in the production line, there are the following problems: due to the cooling method of spraying air mist from the upper direction of the roller table, it can only be installed between the laying machine and the first The cooling length of the 2-3m long roller table section between the fans is limited and the coil stay time at this position is very short, only 2-5 seconds, which makes the temperature drop of the coil at 900°C limited, which cannot reach the desired temperature. The desired temperature uniformity effect, and the length of the follow-up cooling roller table is nearly 100m, so there is still the current situation of uneven cooling at the coil side and the center on the follow-up cooling roller table, and the phase change completion area is just in this area, so the invention has a great impact on reducing the same temperature. Ring temperature difference, the effect of improving the strength difference of the same ring is limited

[0011] To sum up, in order to solve the problem of cooling the edge of the wire rod in the prior art, a new type of cooling device and cooling method is urgently needed to solve the problem of cooling the edge of the wire rod, and can solve the problem of the cooling structure in the prior art. Due to the restriction, the cooling range is small, the temperature drop is limited, the temperature is uneven, and the temperature difference between the same circle is reduced, and the strength difference of the same circle is limited to improve the problem.

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