40results about How to "Avoid secondary loss" patented technology

The invention provides a self-reset concrete frame for strengthening an existing column by enlarging the section and an implementation method of the self-reset concrete frame, and relates to the fieldof civil engineering. The self-reset concrete frame for strengthening the existing column by enlarging the section and the implementation method of the self-reset concrete frame solve the problem that after an existing and general concrete frame is reinforced by enlarging the section, under a rare earthquake, large interlayer lateral movement, permanent residual deformation caused by the earthquake, structural damage caused by the earthquake, and non-structural member damage caused by excessively large interlayer lateral movement and permanent residual deformation are still likely occurring,and meanwhile, influence on an original using space after reinforcing is considered. The self-reset concrete frame comprises an expanding frame column, the expanding frame column is fixedly connectedto the side face of an existing frame column, and the expanding frame column and the existing frame column form a self-reset frame column; and hole channel through holes are formed in the expanding frame column in the height direction, prestressed bars are inserted and mounted in the hole channel through holes and are anchored at the upper end and the lower end of the expanding frame column. The implementation method comprises the steps that steel bars are arranged; the prestressed bars are arranged; pouring is conducted; the prestressed bars are tensioned; and grooving and grouting are conducted. The self-reset concrete frame for strengthening the existing column by enlarging the section and the implementation method of the self-reset concrete frame are used for building of the concrete frame.

The invention provides a waste heat recovering device of high-temperature metallurgy slag particles. The device comprises a middle hopper, a boiler body, a steam pocket, a superheater, an evaporator, an economizer and a discharging machine, wherein the middle hopper is arranged above the material inlet of the boiler body; a refractory material is arranged in the boiler body and a rectangle cavityis formed; the boiler body is divided into a storage section and a work section from top to bottom; the superheater, the evaporator and the economizer are successively arranged in the work section from top to bottom and respectively consist of single or multiple heat exchange pipe groups; the two ends of each heat exchange pipe are respectively connected to a water inlet header and a water outletheader of each heat exchange pipe group; the water inlet header is connected with an distribution header through a distribution pipe; the water outlet header is connected with a converge header through a converge pipe; the steam pocket is connected with the water outlet header; the outlet end of the superheater is connected with a steam pipe network or steam turbine; and the discharging machine is installed at the outlet of the boiler. By using the waste heat recovering device, uniform heat exchange can be realized, the yield and the quality of the steam are improved, and the recovery efficiency of waste heat is high.