3results about How to "Wide range of processing" patented technology

The invention discloses a single-pendulum single-servo-drive 3 + 2 motorized spindle swing head which comprises an upper box body, a lower box body, a spindle box, a motorized spindle, a C-axis assembly, an A-axis assembly and a transmission assembly, the C-axis assembly comprises a C-axis positioning assembly and a C-axis driving assembly, the A-axis assembly comprises an A-axis positioning assembly and an A-axis driving assembly, a spigot of the upper box body is connected to the bottom end of a ram, the motorized spindle is arranged in the spindle box, and the transmission assembly is arranged in the lower box body. The spindle box is of a simple pendulum offset structure; and the C-axis driving assembly and the A-axis driving assembly share one set of servo motor and speed reducer. The swing head integrates a high-power high-speed motorized spindle, a crankset positioning function for improving rigidity, a single-servo driving double-shaft transposition function and a safe self-locking function, and realizes synchronous reduction of manufacturing cost and use cost, remarkable simplification of control logic and synchronous improvement of structural compactness and reliability. Compared with a double-servo-drive or direct-drive swing head of the same specification, the swing head has the outstanding advantages in the aspects of cost, size, control and safety, and is particularly suitable for 3 + 2 indexing machining.

This application relates to the field of wastewater treatment technology, specifically providing a method and system for the synergistic oxidation-reduction coupling treatment of ethylthionitrogen-C-N-S in mineral processing wastewater using a MABR oxygen stratification process. This method and system innovatively develops a time-sequential dissolved oxygen (DO) dynamic control strategy: by periodically / pulsally switching anaerobic-hypoxic-aerobic conditions, the oxidation and ammonification reactions of ethylthionitrogen are directionally enhanced, and the toxic inhibitory effects of intermediate products on functional bacteria are eliminated. Based on this strategy, the system can precisely utilize the spatial distribution of the biofilm oxygen gradient within a single MABR reactor to achieve a cascade reaction of ethylthionitrogen: "sulfur oxidation-ammonification → aerobic nitrification → anoxic denitrification"; or, for high-concentration ethylthionitrogen (>50 mg / L), it can couple a pre-anaerobic reactor to enhance ammonification detoxification and denitrification.

The invention relates to the technical field of foamed ceramic and stone cutting equipment, in particular to double-head lifting type fret saw cutting equipment which comprises a rack, two lifting modules and cutting line transmission assemblies, the two lifting modules are arranged on the two sides of the rack, and the cutting line transmission assemblies are installed on the rack and the two lifting modules correspondingly. Through the rack, the lifting module and the cutting line transmission assembly, high-fall and deep-cavity special-shaped material cutting is achieved, the machining range is wider, and high-precision cutting of special-shaped materials can be completed; a cutting line of a diamond line structure is matched with a non-closed-loop mounting mode, so that the cutting flexibility is improved, and the downward cutting distance of the cutting line can be prolonged; and through the take-up and pay-off switching and reciprocating wire arrangement structure of the winding reel, the continuous machining capacity of the equipment is improved, and the service life of the cutting wire is prolonged. The whole equipment is reasonable in structural design, high in cutting precision, high in flexibility and high in automation degree, the machining requirements of special-shaped materials can be effectively met, and many defects of traditional cutting equipment are effectively overcome.