49results about How to "Stable settlement" patented technology

The invention provides coal-to-liquid (CTL) synthetic base drilling fluid with constant rheological property in deep water. The drilling fluid comprises the following components in part by volume: 60 to 90 parts of CTL and 10 to 40 parts of aqueous solution of calcium chloride; and based on the total volume of CTL and aqueous solution of calcium chloride, the drilling fluid also comprises 2.0 to 3.5 percent mass volume of organic soil, 2 to 5 percent mass volume of emulsifier, 1.5 to 3.5 percent mass volume of calcium oxide, 0.5 to 1.5 percent mass volume of wetting agent, 1 to 4 percent mass volume of filtrate reducer and 32 to 100 percent mass volume of heavy weight additive.

The invention relates to a frame and spring combination type bridge and road transition section structure integrated with a bridge abutment. The frame and spring combination type bridge and road transition section structure comprises the bridge abutment, a beam and a subgrade body and further comprises a steel reinforced concrete transition section frame and a plurality of high-strength spring bundles. The steel reinforced concrete transition section frame comprises a prefabricated horizontal steel reinforced concrete plate and a prefabricated oblique steel reinforced concrete supporting plate. The prefabricated horizontal steel reinforced concrete plate is connected with the upper end of the bridge abutment through a first high-strength hinged bolt, the prefabricated oblique steel reinforced concrete supporting plate is connected with the lower end of the bridge abutment through a second high-strength hinged bolt, and the other end of the prefabricated horizontal steel reinforced concrete plate is connected with the other end of the prefabricated oblique steel reinforced concrete supporting plate through a third high-strength hinged bolt. The prefabricated oblique steel reinforced concrete supporting plate is fixedly attached to the subgrade body. The high-strength spring bundles are vertically installed between the prefabricated horizontal steel reinforced concrete plate and the prefabricated oblique steel reinforced concrete supporting plate. The frame and spring combination type bridge and road transition section structure solves the problem that a sedimentation difference is caused by a rigidity difference between special-shaped buildings in a transport line.

A controllable intelligent magnetorheological piezoelectric vibration isolation support comprises a lower steel plate and an upper cover plate. Magnetorheological liquid is arranged in four grooves inside the lower steel plate. High-magnetic sliding columns are arranged in the grooves. Excitation coils encircle the high-magnetic sliding columns. Meanwhile, a hydraulic telescopic rod is arranged between every two adjacent high-magnetic sliding columns. The tops of the high-magnetic sliding columns are connected with small friction plates. The small friction plates are connected with a large friction plate. The upper portion of a rubber body filled with magnetorheological gels is connected with the large friction plate, and the lower portion of the rubber body is directly connected with the lower steel plate. The upper portion of the large friction plate is connected with the upper cover plate through four rubber laminates. The large friction plate and the upper cover plate bear force stably through an upper force transmission cushion plate, a lower force transmission cushion plate and a supporting steel body filled with piezoelectric stacks. Rubber cushion layers are stuck to the interiors of the two side walls of the upper cover plate. Pressure sensor modules arranged inside the rubber cushion layers are matched with wireless transmission modules arranged on the two sides of the large friction plate. According to the controllable intelligent magnetorheological piezoelectric vibration isolation support, real-time monitoring is achieved, and the vibration isolation support is controlled actively to reset and has the advantages of quick response and high sensitivity.

The invention belongs to the technical field of flocculant production and specifically relates to an aluminum polychlorid-chitosan composite flocculant, a preparation method and an application thereof. The preparation method for the aluminum polychlorid-chitosan composite flocculant comprises the following steps: grinding and sieving aluminum ash, removing impurities by washing and then mixing with water and concentrated hydrochloric acid, stirring, reacting and curing, thereby acquiring aluminum polychlorid; dropwise adding a chitosan / acetic acid solution into a sodium polyphosphate solution and then regulating the pH of the reaction system to 4-5; firstly reacting while quickly stirring and then reacting while slowly stirring, adding aluminum polychlorid after the reaction is ended, and stirring and reacting for 1-3h at 80-100 DEG C, thereby acquiring the aluminum polychlorid-chitosan composite flocculant. The preparation method is simple in operation, low in cost and suitable for industrial production. The aluminum ash is taken as the raw material for preparing the aluminum polychlorid; the waste is turned into wealth; the production cost is lowered; environmental pollution caused by the solid waste of the aluminum ash is avoided.

The invention discloses a continuous alkali washing method of C5 petroleum resin. In the alkali washing process, feeding and discharging processes are continuously carried out, which is beneficial to keeping the stability of product quality, effectively prevents phenomena of emulsification, resin material liquid entrained in discharged water and the like, reduces corrosion on equipment and saves cost, thus the method disclosed by the invention is an efficient, saving and less-pollution continuous alkali washing method.