Windbreak dust suppression wall utilizes aerodynamic principles, processed into a certain geometric shape, porosity rate, and different combinations of hole shapes based on wind tunnel experiment results from the actual implementation site environment. This design allows the airflow (strong wind) passing through the wall to form an upward and downward interference current on the inside, achieving the effect of strong wind on the outside, weak wind on the inside, small wind on the outside, and no wind on the inside, thereby preventing dust from flying.

The first two measures require repeated investments and have been ineffective. The sprinkler technology also has issues with shell formation in winter.
The rolling mill is equipped with a flange cooling device, and efforts should be made to prevent the cooling water from splashing onto the web plate, which may cause a drop in the web plate temperature. 3) Cooling of the rolled piece: After the rolled piece is placed on the cooling bed, the stay time on the step beam should be minimized, and it should quickly enter the chain section for vertical cooling. The cooling rate of the web plate is reduced by the heat radiation between the web plates. Adjustment of the rolled piece's geometric dimensions: 1) Properly thinning the web plate thickness of the incoming material on the BD rolling mill increases the total reduction of the rolled piece's flange, ensuring a certain reduction in the width (height) direction of the head and tail flanges; at the same time, taking advantage of the thicker flanges of the rolled piece, increasing the reduction amount of the edge rolling machine in the previous pass prevents the flange width of the middle part of the rolled piece from exceeding the positive tolerance.