2results about How to "Solve the suspension problem" patented technology

The application discloses a kind of premixing combustion stabilization method and device of tank furnace, belongs to calcined coke production technical field, using preheated air and cold air mix, participate in volatile combustion, make first layer fireway negative pressure-50~‑20Pa;The eighth layer fireway negative pressure is-180~‑120Pa;Gate negative pressure is-250~‑150Pa;First layer fireway temperature is 1260~1320 ℃;Second layer fireway temperature is 1260~1320 ℃;The eighth layer fireway temperature is 1060~1120 ℃;Exhaust fume temperature is 1040~1100 ℃.The application is by using the method of preheated air and cold air mixing combustion-supporting, maintains the stability of flame distribution in fireway.

This invention discloses a dynamic modeling method for a three-orthogonal magnetic reluctance translational magnetic bearing. Based on the equivalent magnetic circuit method, magnetic circuit analysis is performed. Utilizing Ohm's law for magnetic circuits, a single-pole electromagnetic force model of the three-orthogonal magnetic bearing is obtained. Using the lateral edge of a right-angled regular triangular pyramid as a reference, the magnetic bearing's three magnetic poles are evenly distributed circumferentially to construct an orthogonal model magnetic circuit. By analyzing the geometric characteristics of the three-orthogonal magnetic bearing, a coordinate transformation matrix (direction cosine matrix) for the electromagnetic force coordinate system and the position coordinate system is constructed. When the magnetically levitated mover is subjected to external disturbance, the current flowing through the magnetic bearing coil winding is changed according to the change in mover displacement, thereby achieving mover control. The dynamic modeling method for the three-orthogonal magnetic reluctance translational magnetic bearing described in this invention can realize three-degree-of-freedom translation and preset position levitation of the platform on which the magnetic bearing is mounted, and has broad application prospects in the field of attitude control technology for novel spacecraft.