329results about How to "Reduced risk of corrosion" patented technology

The invention relates to a recycling treatment process for coal coking high-salinity wastewater. The process comprises the following steps: (1) fluorine removing; (2) silicon removing; (3) softening;(4) treatment with a multi-medium filter; (5) ultrafiltration; (6) resin softening; (7) FDG; (8) nanofiltration and salt separation; (9) reverse osmosis concentration; (10) advanced oxidation; (11) resin adsorption; and (12) evaporative crystallization. The process has the advantages that the process of pretreatment, nanofiltration salt separation, reverse osmosis concentration, advanced oxidationand evaporative crystallization is adopted, so that zero emission and quality-divided resource utilization of the coal coking high-salinity wastewater are realized.

A bio-hybrid implant suitable for recording and/or stimulating cells, the implant comprising (a) at least one closed insulated chamber (1) containing a substrate (502) with a neural interface (13) for connecting neurons to an electronic circuit, (b) at least one flexible guiding channel (10) having a first interface (11) to connect to at least one of the closed insulated chambers (1) and a second interface (9) to connect to a hosts' nerve system (7) or to another insulated chamber.

The present invention relates to an arrangement and to a method for injecting and affixing a reinforcing and/or anchoring element in a rock wall. The arrangement includes means (15; 65) for connection to a reinforcing and/or anchoring element (2; 62), an injection pipe (9) which is connected to the coupling means at a front end facing inwardly in the hole and which includes means (7) for connection to means for supplying injection medium (8). The arrangement also includes a check valve (10) for co-action with the injection medium, and an expandable seal (10; 50; 60). The arrangement is designed as a separate unit that can be loosened from the reinforcing and/or anchoring element upon completion of the injection phase. The method comprises corresponding process steps.

In a microsensor with a micro-electromechanical sensor element and an integrated circuit for measuring, calibration and compensation electronics, whereby the sensor is connected electrically to the integrated circuit (IC), the micro-electromechanical sensor element is arranged directly on the integrated circuit with accurate positioning, and is connected with electric conductivity via a circulating soldered joint.

The invention discloses a method and device for achieving desulfurization wastewater zero discharging with full flue gas. The method includes the steps that desulfurization wastewater discharged froma coal-fired power plant slurry dewatering system is directly fed into a bypass bubble tower in front of a desulfurizing tower, and then is subjected to reducing concentration with hot flue gas in front of the desulfurizing tower; desulfurization wastewater concentrated water is fed into three connection tanks for charging treatment; settled supernatant liquid is fed into a wastewater tank to be buffered and stored; part of waste heat flue gas is led out behind an electrostatic dust collector and is further pressurized through a high-pressure fan to be fed into an inlet of a Venturi atomizingtube; the desulfurization wastewater stored in the wastewater tank is led into the Venturi tube through negative pressure at a pipe opening of the Venturi tube, high-speed airflow at the throat position of the Venturi tube can impact and atomize the led-in desulfurization wastewater, and meanwhile the waste heat flue gas and liquid drops are subjected to forceful heat transfer so that the pre-evaporation effect on the liquid drops can be achieved; and solid evaporated products are captured by the follow-up electrostatic dust collector or a bag-type dust remover, and therefore low-cost zero discharging of the desulfurization wastewater can be realized.

Structural building components and a method of constructing the same enable improved beams that can be constructed at a place of use. The method includes providing a first flange (16) and a second flange (18) defining a central beam axis (55). A number of separately formed web sections (12) are provided, each having two convergent side walls (42) and a central wall (40) extending between converging ends of the side walls (42). The web sections (12) are arranged side by side in an alternating arrangement wherein the central walls (40) of adjacent web sections (12) are spaced substantially parallel to each other and are transversely staggered relative to the central beam axis (55). The side walls of adjacent web sections (12) are connected to one another, and the web sections (12) are connected to both the first flange (16) and second flange (18).

The invention provides a coke oven flue waste gas desulfurization and denitrification and waste heat recovery integrated process. Coke oven flue waste gas is subjected to an SCR reaction under the effect of a low-temperature SCR denitrification catalyst to remove nitric oxides in flue waste gas, a sodium-based dry powder absorbent is sprayed to flue waste gas for desulfurization after waste heat is recovered through a waste heat boiler, and desulfurized flue waste gas is discharged up to standard after dust removal is conducted through a filter. The process is free of waste water, waste gas emission and heating, denitrification can be directly conducted, the absorbent can be recycled, investment is reduced, and energy is saved.

A wind turbine with improved cooling, which provides liquid cooling for a wind turbine with a completely closed or at least partially closed cooling circuit, with which the heat to be dissipated from the cooling circuit is dissipated by a nacelle of the wind turbine. The wind turbine with improved cooling dissipates energy losses from heat and applied for the conversion of kinetic energy of wind into mechanical and electrical energy of the wind turbine.

The invention relates to a system for monitoring dynamic direct-current interference of a pipeline based on Beidou and a risk assessment method. The monitoring system comprises multiple monitoring units dispersedly arranged and corresponding to test piles in a gas pipe network and server units in communicating connection with the monitoring units, wherein each monitoring unit comprises a potential recorder, a checking piece and a reference electrode, wherein the checking piece and the reference electrode are buried in one side of the gas pipeline and are respectively connected with the potential recorder through cables, and the potential recorder is connected with the gas pipeline through a cathode testing line in the corresponding test pile. The monitoring system has the advantages of being simple in structure, easy to implement, high in accuracy and good in real-timeliness, intelligentization and visual management of the gas pipe network can be achieved, the corrosion risk of the gas pipeline is reduced, and the reliability of safe operation is improved. The risk assessment method has the advantages of being simple in process, convenient to achieve, scientific and reasonable.

The invention relates to the use of aqueous guanidinium formiate solutions, optionally combined with urea and/or ammonia and/or ammonium salts, for the selective catalytic reduction of nitrogen oxides using ammonia in exhaust gases of vehicles. The inventive guanidinium formiate solutions enable a reduction of the nitrogen oxides by appoximately 90 %. Furthermore, said guanidinium formiate solutions can enable an increase in the ammonia forming potential from 0.2 kg, corresponding to prior art, up to 0.4 kg ammonia per litre of guanidinium formiate, along with freezing resistance (freezing point below -25 DEG C). The risk of corrosion of the inventive guanidinium formiate solutions is also significantly reduced compared to that of solutions containing ammonium formiate.

The invention discloses a novel parallel multidimensional oscillating sea wave power generation device. The novel parallel multidimensional oscillating sea wave power generation device comprises a floater, and a sealing cover plate, a two-dimensional rotating hinge, an oscillating rod, an oscillating platform, six hydraulic cylinders, an oil tank, a hydraulic motor, a power generator and an energy accumulator which are all arranged in the floater, wherein the sealing cover plate is fixedly connected to a protruding eave of the floater; the oil tank is fixedly connected to the floater; one end of the two-dimensional rotating hinge is fixedly connected to the sealing cover plate and the other end is connected to the oscillating rod; one end of the oscillating rod penetrates through the sealing cover plate to be fixedly connected to an external device and the other end is fixedly connected to the oscillating platform; the six hydraulic cylinders are connected in parallel to work; the two ends of the six hydraulic cylinders are respectively hinged to the oscillating platform and the oil tank through spherical hinges; the oil tank is connected with the hydraulic motor through a flow-dividing pipe and a return pipe; the power generator is connected with the hydraulic motor; the power generator and the hydraulic motor are arranged on the bottom surface of the floater; the energy accumulator is connected with the hydraulic motor. The novel parallel multidimensional oscillating sea wave power generation device has the advantages of long service life, low maintenance cost, low environmental pollution, capability of fully absorbing sea wave energy, high power generation efficiency and the like.

The invention discloses an air foam flooding shaft bottom foaming process pipe column, which at least comprises an inner pipe and an outer pipe arranged outside the inner pipe. The air foam flooding shaft bottom foaming process pipe column also adopts a ground-matched check valve to simplify ground valve switching operation and reduce the risk of damaging a topping-up pump and an air compressor; because double-pipe injection is adopted, the air and liquid pass through an independent passage respectively to reduce the risk of pipe column corrosion; and a foam generator is arranged at the bottom of a well to generate foams near the well bottom so that the performance of injected foams is guaranteed and the foams better play a role in the displacement of reservoir oil and profile control.

This invention relates to a fastener assembly that has a rail (1) and a fastener device (6) that can be installed in a transport vehicle, characterized in that a rail head (2) is coated with a layer (3) of alumina with polytetrafluoroethylene seal and that at least a portion (5) of the fastener device in contact with the rail head is made of metal coated with a layer of polymers (7).

The invention provides an X65 hot-rolled steel plate for a marine riser and a preparation method. The X65 hot-rolled steel plate is prepared from, by weight, 0.03%-0.05% of C, 0.10%-0.30% of Si, 1.10%-1.35% of Mn, smaller than or equal to 0.007% of P, smaller than or equal to 0.0008% of S, 0.01%-0.05% of Alt, 0.04%-0.06% of Nb, 0.008%-0.018% of Ti, 0.20%-0.40% of Ni, 0.15%-0.30% of Cr, 0.10%-0.20%of Mo, smaller than or equal to 0.004% of N and the balance Fe and unavoidable impurity elements. The preparation method comprises the steps that continuous casting blanks with the thickness rangingfrom 300 mm to 500 mm are adopted, differential temperature rolling is adopted for steel blank rough rolling, three-stage rolling is adopted for finish rolling, and then fine and squashed hardened austenite grains are obtained; steel plates are cooled after being rolled, and then fine ferrites and a small amount of acicular ferrite structure are obtained, wherein the initial cooling temperature ranges from 760 DEG C to 780 DEG C, and the final cooling temperature ranges from 200 DEG C to 300 DEG C. The X65 hot-rolled steel plate has the advantages of being large in wall thickness, high in strength, low in yield ratio, excellent in low-temperature toughness, fracture resistance and acid resistance and capable of reducing the fracture and corrosion risks of marine risers.

The invention provides a thin film transistor array substrate and a preparation method thereof, and a display device, belongs to the technical field of display, and aims at solving the problems of high production cost due to more mask plates in preparation, corrosion of a grid electrode, and electrostatic discharge in adapting of a grid electrode of the existing thin film transistor array substrate and the preparation method, and the display device. According to the existing thin film transistor array substrate and the preparation method, and the display device, the same mask plate is adopted while preparing a second insulating layer and an etching resisting layer, so that one mask plate can be saved, and as a result, the production cost can be reduced; meanwhile, the second insulating layer has the same graph as the etching resisting layer in a display area, and therefore, a pixel electrode is connected with a drain electrode through a through hole; a source electrode and the drain electrode in the side frame area directly cover the grid electrode; when the source electrode and the drain electrode are manufactured from anticorrosion metal, the risk of corrosion of the grid electrode can be reduced, and the risk of electrostatic discharge in adapting of the grid electrode can be also reduced.

The invention provides an integrated system for coke oven flue gas desulfurization and denitrification and waste heat recovery. The integrated system comprises a coke oven, a low-temperature SCR denitrification system, a waste heat boiler, a flue, a pulverizer, a filtering system and a chimney. The coke oven, the low-temperature SCR denitrification system, the waste heat boiler, the filtering system and the chimney are sequentially connected through the flue, a dry powder absorbent inlet is formed in the portion, between the waste heat boiler and the filtering system, of the flue and is connected with an outlet of the pulverizer through a pipeline, and an absorbent inlet is formed in the pulverizer. The system is free from waste water and gas emission and capable of directly carrying out denitrification without heating, absorbent can be used circularly, investment can be reduced, and energy can be saved.

Processes and plants for the production of purified urea solution are described. In a described urea production process, urea is produced in a synthesis section without a high pressure stripper and the urea solution is subjected to purification after the recovery section, to give purified urea solution and off-gas. The purification comprises e.g. steam stripping.

The invention relates to a coating layer-carried aero-engine part cleanness checking method. The method mainly comprises such contents as precleaning, drying, cleaning, cleaning solvent collection andcleanness checking; cleaning solvent uses petroleum ether; the petroleum ether is sprayed to clean parts by using a pressure cleaning gun; after three times of spray cleaning, all cleaning liquid iscollected for cleanness checking; a filter paper of 0.8 micron is adopted to filter the collected cleaning liquid; then, the particle size of hard impurity particles remained on the filter paper is checked; and when the number of hard particles of larger than 30 microns and smaller than 100 microns is not more than 5, related technical requirements are met. The method has the characteristics of high cleaning efficiency, high cleaning quality and convenience to operate, and meanwhile, cannot damage basal bodies of the cleaned parts.