44results about How to "Less basic investment" patented technology

The invention relates to a rock-socketed single pile foundation of offshore wind turbines in batholith seabed and a construction method thereof. The rock-socketed single pile foundation comprises a steel pipe pile inserted in a moderately weathered batholith layer. An annular groove located at the periphery on the lower end portion of the steel pipe pile is formed in the batholith. An inner casing is nested within the lower end of the steel pipe pile. A gap is reserved between the inner casing and the inner wall of the steel pipe pile. The inside of the annular groove and the gap between the inner casing and the inner wall of the steel pipe pile are both filled with a high-strength grout having initial setting time of no less than 8 h. The rock-socketed single pile foundation of offshore wind turbines in batholith seabed in the invention is stable and reliable, ensures that the single pile foundation can be tightly bonded with the surrounding batholith, and reliably embedded in the moderately weathered batholith layer. The impact of a large boring diameter and a borehole perpendicularity error on the gradient of the single pile foundation and the problem of local stress concentration of the rock-socketed section of the steel pipe pile due to unevenness of the bored rock surface are reduced. Moreover, the cubic quantity of backfill concrete for the rock-socketed section can be lowered. The critical technical problem of use of the single pile foundation in the batholith seabed is effectively solved.

The present invention provides an MFC preparing method which uses the aerobic microorganism as the cathode catalyst, the catalyst which adopts the microorganism as the cathode successfully actuates the biological cathode biological fuel cell which has a double-cell structure, the electrode material is conductive carbon fiber and the anode takes the glucose as substrate, the cathode takes NaHCO3 as inorganic carbon source and the perforated pipe aerates. The result showed that after 9d actuation the battery voltage gets to 0.324V(R=500 omega), the maximum power density is 24.7W/m<3> when the aeration amount is 300Ml/min, as the metal catalyst is saved and the fabricating cost of MFC is reduced the application of MFC in project is provided with a novel approach and possibility.

The invention discloses a novel diving jet-type biological aerated filter, comprising a biological filter, wherein a filter filler part and a filter material layer are arranged in the biological filter; a water inlet tube is arranged at the upper end of the biological filter, and a water outlet tube is arranged at the lower end of the biological filter; a bridge is installed at the top end of the biological filter; a diving jet-type aerator which is fixed via a hoisting chain is installed on the bridge; and the main machine of the diving jet-type aerator is installed below the filter filler part. Via the mode aforementioned, the novel diving jet-type biological aerated filter disclosed by the invention is capable of effectively improving gas-liquid mixing effect, realizing uniform gas distribution, increasing oxygen utilization rate, creating an environment suitable for growth of microbes which are used for oxygenolysis of organic matters, improving effluent treatment effect, and saving space and construction cost.

A process of extraction of high-purity soluble cerium hydroxide from a fluorine-carbon-cerium mixed rare earth carbonate comprises the steps: taking the mixed rare earth carbonate, firstly dissolving by an acid, then removing SO4<2->, next carrying out hydrolytic precipitation of cerium to generate cerium hydroxide, then dissolving cerium hydroxide in the hydrochloric acid medium to form a Ce<4+> solution with the hydrochloric acid weak acidic medium, controlling conditions, precipitating again in the weak acidic medium to make a lot of metal impurities remain in the solution, and thereby obtaining cerium hydroxide which contains the quite low content of non rare earth impurities and can be easily dissolved in a nitric acid medium. Hydrolytic precipitation of the rare earth adopted by the invention is complete, so a large amount of alkali is saved; an oxidant is added to allow cerium to be greatly oxidized into tetravalent cerium, and thus achievement of hydrolytic precipitation is facilitated, so as to realize an effect of high percentage extraction of cerium. The process generates a small amount of waste water, is simple, has low preparation cost, is expected to large-scale industrial production, and has certain economic benefits and quite good social benefits.

The invention discloses an electrode type molten salt heater. The electrode type molten salt heater is characterized by comprising an electrode bracket, control shields, three-phase electrodes, neutral electrodes, a power interface, a screw, a movable type connector and a supporting plate which is positioned in an opening of a lower semi-elliptical end socket, wherein the three-phase electrodes are arranged on the inner part of a barrel body; the three-phase electrodes are distributed in the form of a regular triangle inside the barrel body and are supported by the electrode bracket; the upper parts of the three-phase electrodes are connected to the power interface; the circular-ring-shaped neutral electrodes cover the three-phase electrodes; the control shields are arranged between the three-phase electrodes and the neutral electrodes; and a motor drives the screw, the movable type connector and the control shields to rotate or lift, so that an opposite area between the three-phase electrodes and the neutral electrodes is changed. The electrode type molten salt heater has the advantages of being high in heating efficiency, compact in structure, small in floor space, excellent in safety performance and the like.

The invention provides an air rail transportation device for bulk materials. The air rail transportation device comprises a closed-loop air rail, a loading platform and an unloading platform, the loading platform and the unloading platform are separately positioned on the outer side of the closed-loop air rail, at least one rail car is arranged on the closed-loop air rail, and a hopper is mounted on the rail car. The closed-loop air rail comprises an ascending air rail and a descending air rail, the ascending air rail and the descending air rail are both inclined rails, the inclination angle of the ascending air rail is -a, the inclination angle of the descending air rail is a, and a is larger than 0 degree and smaller than 5 degrees. The air rail transportation device further comprises a main control system, and the main control system comprises a rail car walking control system, a loading control system, an unloading control system and a hopper control system. According to the air rail transportation device, the loading platform and the unloading platform are connected through the closed-loop air rail, meanwhile, the loading, unloading and transportation processes are controlled through the main control system, automatic control over bulk material conveying can be achieved, and the bulk material conveying efficiency is improved.

The invention discloses a combined crane for docks and dock wharfs. The combined crane is characterized in that a fixed overhead crane and a movable overhead crane are combinedly arranged on a movable frame structure, wherein the frame structure is formed by welding track beams, column legs, lower beams, diagonal braces and struts; the fixed overhead crane is fixed on the two track beams through a planar hinge or a plate hinge; the movable overhead crane is fixed on the track beams; and the frame structure is fixed on a complete machine operating mechanism. Compared with the prior art, the combined crane has the advantage of coordinated hoisting of an overhead crane and a portal crane, infrastructural investment of an overhead trestle bridge is saved, working blind zone is effectively avoided, the overall stability of equipment is improved, and the combined crane is convenient to operate coordinatedly and has high working efficiency. Besides, the combined crane has irreplaceable advantage on wind resistance and seismic resistance, and is particularly suitable for docks and dock wharfs where long-distance overhead trestle bridges can not be arranged.

The invention discloses a bulk cargo warehouse of a light structure. The bulk cargo warehouse includes a plurality of steel columns, pulleys, steel wire ropes, tension regulators and dustproof ventilating nets, the steel columns are erected on the ground, the steel columns are arranged in transverse and longitudinal rows, the tops of the steel columns are provided with the pulleys, and one same steel wire rope is wound on the pulleys at the tops of the steel columns in the same transverse row, wherein both ends of the steel wire rope are fixed to the ground; and the tension regulators are installed on the steel wire ropes, the corresponding dustproof ventilating net is installed between the two steel wire ropes on the adjacent two transverse steel columns, each dustproof ventilating net isprovided with two layers of metal nets and an intermediate layer dustproof material, wherein the two layers of metal nets are supported on the upper and lower faces of the intermediate layer dustproof material correspondingly, the dustproof ventilating nets are fixed to the steel wire ropes through buckle pieces, thus the intermediate layer dustproof material is clamped in the two layers of metalnets for fixing, and the side faces of the steel columns in the foremost and backmost transverse rows are closed. According to the bulk cargo warehouse of the light structure, external discharging ofdust can be controlled organically, installation is convenient, site limitation is avoided, wind resistance and shock resistance are achieved, the construction speed is high, construction investmentis 1/10 of original investment, and application and promotion are facilitated.

The invention belongs to the technical field of screening, particularly relates to an oil-free direct-driven vibrating screen and a mounting method thereof, and solves the technical problems of unreasonable design and the like in the prior art. The oil-free direct-driven vibrating screen comprises a vibrating screen frame which is fixed on an elastic supporting mechanism and is obliquely arranged, at least one vibrating motor is mounted above the two sides of the vibrating screen frame, a vibrating motor arranged above one side of the vibrating screen frame and a vibrating motor arranged above the other side of the vibrating screen frame are oppositely arranged, an output shaft of each vibrating motor is provided with an eccentric block and a universal coupling, with the two ends correspondingly connected to the output shafts of two vibrating motors which are oppositely arranged, which is transversely arranged above the vibrating screen frame in the width direction. The vibrating screen has the advantages of being simple in operation and maintenance and more compact in structure.

The invention discloses a spray belt cooling water high and low temperature dual control system with a plurality of stainless steel water pools being connected in series. The spray belt cooling waterhigh and low temperature dual control system comprises a spray belt production line system and a smelting furnace insulation furnace system, wherein the spray belt production line system is equipped with a first cooling water temperature control system, the smelting furnace system insulation furnace system is equipped with a second cooling water temperature control system, the first cooling watertemperature control system and the second cooling water temperature control system both comprise the plurality of stainless steel water pools connected in series, and heat of a smelting furnace induction coil and/or an insulation furnace induction coil is used for heating when the cooling water temperature of the spray belt production line system is below the set temperature lower limit. Accordingto the spray belt cooling water high and low temperature dual control system with the plurality of stainless steel water pools being connected in series, the plurality of stainless steel water poolsare adopted to be connected in series, the temperature is easy to control, the waste belt rate is reduced, the cost is low, and no water seepage and water leakage exist; and the heat of the smelting furnace induction coil and/or the insulation furnace induction coil is taken as heat source to be used for heating when the cooling water temperature of the spray belt production line system is below the set temperature lower limit, energy sources are utilized sufficiently, and the spray belt fabricating cost is lowered.

The invention discloses a refractory industrial wastewater treatment system which comprises a regulating tank, a catalytic ozonation tank, a denitrification filter tank, a biological aerated filter tank, an intermediate water tank, an active sand filter tank, a sludge concentration tank and an ozone disinfection tank, the regulating tank is connected with the catalytic ozonation tank through a pipeline, and the catalytic ozonation tank is connected with the denitrification filter tank through a pipeline; the biological aerated filter is connected with the intermediate water tank through a pipeline, the intermediate water tank is connected with the active sand filter through a pipeline, the active sand filter is connected with the sludge concentration tank through a pipeline, the sludge concentration tank is connected with the regulating tank through a pipeline, and the ozone disinfection tank is connected with the active sand filter through a pipeline.Meanwhile, the invention also discloses a refractory industrial wastewater treatment method. The treatment process is simple, the effect is good, the occupied area is small, and up-to-standard discharge of the refractory industrial wastewater is achieved.

A means for adapting different media of transmission link of network on physical layer, includes at least : a common interface, for connecting a interface of media access control (MAC) module ; more than one channels of different media ; a switch and control means , as a part of physical encoding sub-layer, for controlling auto-switch between channels of different media. FIFO synchronization for connecting the different media, are performed on the physical encoding sub-layer. It further includes : a detect and control means, for detecting state information of the channels and switching the channels according the state information; and a flow control means, outputing to a management interface of the switch and control means. The present invention can be applied to broadband computer network and the field of data communication to convenience network users, and the users are capable of flexibly selecting the type of physical media according their own requirement and conditions, and meanwhile the reliability of key-link in the network is ensured.