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.

Dispersion of sol-derived nano-alumina in an organic solvent mixture containing a 1,2-diol with simple agitation. A thixotropic solution is obtained at 20% alumina in ethylene glycol, while a low viscosity (<100 cps) solution is possible for a 20% alumina in (1:1, N-methylpyrrolidone-ethylene glycol) solution. Alumina particles are de-agglomerated with minimal agitation. The resulting solution or resin solution is stable to settling and re-agglomeration. The nano-alumina dispersion solution can then be mixed with an imide coating to provide for a wire coating to give the wire improved abrasion, COF, and corona resistance.

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 relates to a solid powder suspension slurry. According to that the total weight of slurry is 100% it includes: (1) metal oxide or hydroxide powder, content is 20-90 wt%, optimum is 30-80%; (2) dispersing agent formed from water-soluble compound containing carboxylic group or hydroxyl group, content is 0.5-8 wt%, optimum is 1-5 wt%; (3) water, the rest. Its solid content can be up to 90 wt%, its viscosity is 20-200 millipoises at normal temperature, and its setlling rate for 100 hr. only is 0-2 wt%.

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.

The foundation construction process of reforming self-roasting electrolytic bath into large pre-roasting electrolytic bath includes cutting the foundation column and platform column of the original self-roasting electrolytic bath to below the ground level and forming bedding with broken stone or horsestone to ground level; and forming integral foundation of large pre-roasting electrolytic bath set on the ground level. The present invention can save engineering investment greatly and shorten the engineering duration by means of utilizing the old foundation with stable foundation deposition, and raised bearing capacity and compactness of soil.

The invention discloses a method for rectifying building inclination through deep borehole silt displacement and mud removal, which comprises the following steps: (1) arranging boreholes according to the inclination condition and the structural type of a building; (2) performing jump hole boring at intervals along the arranged positions of the boreholes from the ground; and (3) discharging silt of an underlying soft soil layer in each borehole until the inclination of the inclined building tilts back to a preset inclination value. After adopting the method for rectifying building inclination,the foundation earth at the softer side can be effectively protected without destabilizing the building, even the destabilization exists, the destabilization is very low; moreover, because the borehole-cleaning operation is scattered relatively, and only deep layer soft soil is dug out, the underlay and the soil layer in certain depth below the foundation cannot be destabilized and play a role ofa protective layer for adjusting the foundation pressure; and once the inclination rectification construction is finished, the building settlement can be stable very soon.