Abstract: A method for obtaining a parameter representative of a height (H) of an upper surface of a material stacked in a coke oven with respect to a reference plane (P) is provided. The method includes the following steps: providing a sensor located above the upper surface at an operation distance (D1) from the reference plane, the sensor and the material forming a capacitor having a capacitance, obtaining at least one capacitance signal representative of said capacitance, obtaining at least one distance signal (S2) using the capacitance signal, the distance signal being representative of a distance (D2) between the sensor and the upper surface along a vertical direction (Z), and obtaining said parameter representative of the height using the distance signal and the operation distance. A process for controlling a filling rate of the coke oven, a system for implementing the method, and a coke oven including the system are also provided.

Abstract: A method for obtaining a parameter representative of a height (H) of an upper surface of a material stacked in a coke oven with respect to a reference plane (P) is provided. The method includes the following steps: providing a sensor located above the upper surface at an operation distance (D1) from the reference plane, the sensor and the material forming a capacitor having a capacitance, obtaining at least one capacitance signal representative of said capacitance, obtaining at least one distance signal (S2) using the capacitance signal, the distance signal being representative of a distance (D2) between the sensor and the upper surface along a vertical direction (Z), and obtaining said parameter representative of the height using the distance signal and the operation distance. A process for controlling a filling rate of the coke oven, a system for implementing the method, and a coke oven including the system are also provided.

Abstract: An air nozzle for guiding a cut steel strip at the exit from a shearing device for a moving steel sheet is provided. The nozzle is made in one piece and extends along a main plane perpendicular to the direction of movement of the steel strip. The air nozzle includes an air inlet channel with a free end connected to a compressed air generator and an opposite end divided at a deflection junction into a first and a second air discharge channel facing each other on either side of the main plane. The free end of the first air discharge channel is located close to the exit and includes a plurality of first air discharge orifices orientated towards the second air discharge channel.

Abstract: A drill bit for improving performance of a drilling machine is provided. The drill bit includes a drill bit body with a rear end adapted to be connected to a drilling machine, and a leading end with a flat face perpendicular to a longitudinal axis (X-X) of the drill bit body. The drill bit body includes a first tapered portion with diameters increasing from the flat face of the leading end to a maximum diameter (Dmax), a second tapered portion with diameters decreasing from the maximum diameter (Dmax) to the rear end of the drill body, at least three partly-circular recesses formed in the drill bit body thus delimitating as many tapered drilling faces, each of them extending from the flat face of the leading end to the maximum diameter (Dmax). The flat face and the tapered drilling faces have a plurality of protruding teeth and the teeth are cylindrical and have a longitudinal axis (Y-Y) forming an angle with the face supporting the teeth which is less than or equal to 90°.