229results about How to "Reduce construction investment costs" patented technology

The invention relates to an emission reduction system of sintered fume nitric oxide with low energy consumption and a method thereof. The system comprises a nitric oxide high-concentration region air bellow A, a nitric oxide low-concentration region air bellow B, a denitration dust remover, a denitration device, a dust remover, a desulfuration device, a main exhaust fan, an emission chimney and a circulation loop. The denitration dust remover is connected with the air bellow A to collect the fume in the air bellow; the denitration dust remover is sequentially connected with the denitration device and the desulfuration device; and the fume subjected to dust removal and denitration is guided into the desulfuration device. The dust remover is connected with the nitric oxide low-concentration region air bellow B to collect the fume; the dust remover is connected with the desulfuration device; and the fume subjected to dust removal is guided into the desulfuration device. The desulfuration device is sequentially connected with the main exhaust fan and the emission chimney so as to desulfur the fume and discharge into the atmosphere. The circulation loop at least comprises a circulation fume hood, a circulation blower, a circulation fume dust remover and a circulation pipeline. The method comprises the following steps of collecting fume, removing dust, denitrating, desulfuring, discharging fume into the atmosphere and the like. The whole system is relatively simple and has obvious effects of energy saving and emission reduction.

The invention discloses an environmental-protection and energy-conservation treatment technology of sintering flue gas, and belongs to the technical field of energy conservation and environmental protection. Flue gas having high SO2 concentration and very low NOx concentration at a sintering head is subjected to dust removal, and is mixed with hot flue gas in a flue gas hood at a second cooling section of a cooling machine to form circulating hot flue gas, and then flue gas circulating sintering is carried out; flue gas having high SO2 concentration and high NOx concentration at a sintering middle part is subjected to the dust removal and then flue gas desulfurization, the desulfurized flue gas is sintered and cooled by a flue gas heat exchanger, undergoes preheating temperature-rising, then undergoes pipeline complementary combustion temperature-rising to meet the requirement on SCR (Selective Catalytic Reduction) denitration temperature, flue gas denitration is carried out, and the denitrified flue gas is discharged; flue gas having low SO2 concentration and low NOx concentration at a sintering tail is subjected to the dust removal, and is mixed with hot flue gas in the flue gas hood at a first cooling section of the cooling machine to form high-temperature mixed flue gas, the high-temperature mixed flue gas is subjected to heat exchange by the flue gas heat exchanger, the flue gas after being subjected to heat exchange and cooled is directly discharged. According to the treatment technology, the effects of sectional desulfurization and denitration of sintering flue gas, and reduction in flue gas emission are realized; waste heat of the flue gas is used, so that the denitrified flue gas heating consumption is reduced; the construction investment and production running cost are reduced integrally; and the treatment technology corresponds with the running mode of energy conservation, environmental protection, emission reduction, consumption reduction, effect increasing and circular economy.

The invention discloses a method for continuously polymerizing nylon from a bi-component monomer serving as a raw material. The method comprises the following steps of: reacting and rectifying a nylon salt aqueous solution serving as a raw material in a pre-condensing tower in which a liquid phase is a continuous phase, a gas phase is a dispersed phase and falling liquid and rising bubbles keep flat push flow respectively under a low pressure to generate a prepolymer of which the polymerization degree 5-50 (preferably 20-40) and a terminal carboxyl group, a terminal amino group and the like are of equal molar amounts; and pre-heating the pre-polymer to generate a polymer of which the polymerization degree reaches process indexes in the pre-condensing tower. In the pre-condensing tower, a film falling or strip falling method is adopted, so that evaporation of condensed water is accelerated, the reaction temperature is lowered, reaction time is shortened, and gel is reduced; and a kettle wall is coated with a falling liquid film, so that kettle wall scars are avoided. The method has the advantages of short flow, large mono-line scale, saving in investment, low running cost, good product quality, long continuous running period, environment friendliness and suitability for continually polymerizing nylon 66, nylon 56 and other nylon made of bi-component monomers serving as raw materials.

The invention provides a fatigue and vibration experiment table and a fatigue and vibration experiment system. The fatigue and vibration experiment table comprises two fatigue and vibration experiment modules, a longitudinal platform, a longitudinal loading framework and a longitudinal loading device, wherein each fatigue and vibration experiment module comprises two vibration units, a fatigue unit and a bearing platform; the two vibration units are arranged on the bearing platform in a sliding way; the fatigue unit is fixedly arranged on the bearing platform and is positioned between the two vibration units; and the bearing platform is arranged on the longitudinal platform in a sliding mode and slides in a frame body of the longitudinal loading framework. The technical scheme of the invention solves problem that separate fatigue experiment table and vibration experiment table are used to complete fatigue experiments and vibration experiments in the prior art, so the two experiment tables have high building and investment cost and large occupied area, fulfills the aim of integrating the fatigue experiment table and the vibration experiment table, and has the characteristics of low building and investment cost and small occupied area.

The invention discloses an implementation method for mixed routing production of different types of vehicles in a vehicle coating line. The method comprises the following steps: (1) determining the types of the vehicles needing to be subjected to mixed routing production and a coating production process for each vehicle, and during mixed routing layout, only arranging a set of production equipment corresponding to the procedure on the vehicle coating line for the vehicles with the same procedure, so that all the vehicles with the procedure share the set of equipment, and the procedure operation is carried out; and (2) performing mixed routing production, namely when a vehicle body in white enters the vehicle coating line, identifying the type of the vehicle, transmitting the type of the vehicle to a control system, controlling the vehicle body to automatically operate by the control system according to a designed process route, and then performing corresponding treatment in each procedure. According to the method, the mixed routing production of different large-span types of vehicles such as economy cars, MPV (multi-purpose vehicles), minibuses and mini-trucks can be realized, so that the investment cost is greatly lowered, the production efficiency is improved, and the site occupation is reduced.

The invention relates to a method for recycling metal iron resources from waste residues of the iron and steel industry, particularly relates to a method for recycling metal iron from steel slag of a converter, and belongs to the technical field of benefication and comprehensive utilization of resources. The method includes recycling the metal iron from the slag of the converter by a cascade separation technological method, a dry magnetic separation technological method for discarding tailings and a wet concentration technological method, and is characterized in that +70mm large high-grade steel slag of the steel slag of the converter is in cascade separation and recycling, -70mm large high-grade steel slag is in classification dry magnetic separation for discarding tailings, rough concentration is further in full-grain wet ore grinding for separating slag from iron, cascade screening and cascade magnetic separation, and finally the metal iron with different grain sizes and magnetic iron concentration are obtained. The method has the advantages of high recycling rate and the grade of the metal iron, simplicity in technological process, simplicity and convenience in operation, low production cost, applicability to processing different types of steel slag of converters, and the like.

The diesel oil fraction upgrading and pour point reducing process has the mixture of diesel oil material and hydrogen passing through the hydroupgrading reaction region to result in diesel oil with low solidification point through reaction under certain condition. The catalyst in the hydroupgrading reaction region includes at least one kind of bulk phase catalyst comprising complex oxide NixWyOz and oxide MoO3 in the weight ratio 0.1-10 and accounting for 40-100 wt% of total catalyst, and at least one kind of upgrading catalyst containing beta-zeolite. The present invention can lower the solidification point, 95 vol% point temperature and sulfur content of diesel oil, and raise cetane number and oxidation stability under mild condition.

The invention relates to an associated gas recovery process in the oil field oil extraction process, in particular to an oil field well casing gas recovery device and an oil field well casing gas recovery process. The process is characterized in that: when a part of oil from a well mouth is connected with an inlet port pipeline of a synchronal rotary compressor through a first-path pipeline with a throttle valve, a ball valve and a filter, the part of the oil from the well mouth of the first-path pipeline enters the synchronal rotary compressor to seal, lubricate and cool the synchronal rotary compressor, the other part of the oil is transported to a downstream pipeline under the action of an oil extractor, and the casing gas of a second-path pipeline is pressurized by the synchronal rotary compressor and is pressed into an oil pipe for transport so as to pressurize and recover the casing gas. The invention provides the oil field well casing gas recovery device and the oil field well casing gas recovery process which can effectively reduce the return pressure of the well mouth, improve oil extraction working conditions and reduce the energy consumption of the oil extractor.

The invention discloses an intelligent WIFI (Wireless Fidelity) sharing system. A method comprises the steps that 1) a family user who has fat-AP becomes a member of a Wifi league and registers to join in the league by carrying the self own fat AP; 2) the registering for an AC+fit AP type user only needs a simple inheritance, namely, all the user data of AC+fit AP is loaded on a server of the league; and 3) a user who does not have AP registers to be as the member in the league by a paying manner. According to the method provided by the invention, the Wifi resource sharing is realized by software based on an existing AP device without any change on the hardware. Compared with the Wifi sharing mode supported by hardware, the method has the advantages of wider promotion and wider promotion space, as well as more convenient application.

The moderate hydrocracking process has the inferior diesel oil fraction, VGO or other heavy fraction oil as the material oil hydrocracked under moderate condition to result in high quality products, especially high quality hydrocracked tail oil. The catalyst in the hydrocracking reaction region includes at least one kind of bulk phase catalyst comprising complex oxide NixWyOz and oxide MoO3 in the weight ratio 0.1-10 and accounting for 40-100 wt% of total catalyst. The present invention facilitates the hydrocracking operation, increases the treating capacity of the apparatus, increases the service life of the catalyst and raises the quality of the product.

The present invention relates to the communication field disclosing a calling-up and shutdown method and system for an arrearage user, and a calling-up device thereof. The disclosed method comprises following steps: sending arrearage calling-up order to an exchanging center; after receiving the order, the exchanging center starting the calling-up process; after completion of the calling-up, the user who satisfied the preset qualifications being shut down. The disclosed calling-up device is arranged within the exchanging center for executing the calling-up according to the calling-up order from the center. With the technical scheme in this invention, the calling-up device is unnecessary to be arranged solely; after calling-up, shutdown of the user is automatically realized; and the investment and construction cost are saved, and the efficiency is also improved.

The invention discloses a method for achieving an anti-snaking broadband energy absorption mechanism and an optimal configuration method for the parameters of a bogie. According to the method and the optimal configuration method, a dynamic design method is mainly applied, and lead-lag correction of unstable snaking oscillation phenomena of the bogie is achieved in a self-adaptive control manner; an anti-snaking redundant design form of an ICE3 prototype is borrowed, the anti-snaking broadband energy absorption mechanism is achieved through combination application of novel anti-snaking vibration reducers, and the method and the optimal configuration method are simple and applicable; and an anti-snaking soft constraint or anti-blocking technology is borrowed, the hydraulic rigidity is properly reduced, and rheology nonlinear influences are avoided. By means of the method and the optimal configuration method, the design defects of the ICE3 bogie prototype are overcome, a high-speed-rail passenger-dedicated development manner is gradually changed, and then the rate of return on investment is increased; in addition, the adaptability and the friendliness to track lines are improved, and the railway construction investment cost can be saved; and meanwhile the robustness of perturbation or disturbance of natural factors is improved, and particularly when the method and the optimal configuration method are used for mountain lines, and the structural technical service cost can be obviously reduced.

The invention provides a separation method of diolefin in carbon-5 aiming at the problem of high content of cyclopentadiene in isoprene when the diolefin in carbon-5 is separated by utilizing the post-heating dimerization method. The method comprises the following steps of: carrying out thermal dimerization reaction for two times, carrying out heavy removal for two times and removing the cyclopentadiene in the carbon-5 by using a special thermal dipolymer reactor. The content of the cyclopentadiene in the isoprene prepared by adopting the method is below 1 percent (weight), and meanwhile, thecontent of cyclopentadiene in produced piperylene is less than 1 percent (weight); and the content of an isoprene autopolymer or an isoprene copolymer in dicyclopentadiene can reach the level of a post-heating dimerization carbon-5 separation technology. The invention also discloses equipment for implementing the separation method at the same time.

The invention discloses a material storage device of a storage yard. The material storage device comprises a material storage bearing bottom plate and two retaining walls, wherein a material storage bin is formed between the two retaining walls, and material storage lattices are arranged on two longitudinal sides or one side of the material storage bin. The invention further discloses a closed storage yard which comprises a material storage shed and the material storage device arranged in the material storage shed. According to the invention, the material storage bin can eliminate V-shaped space at the top of the material, then the space utilization rate is increased, and the occupied area as well as energy consumption for ventilation, heating, lighting and the like of the storage yard are reduced; more independent unit storage bins and unit material lattices are provided, and the variety adaptability of the storage yard is higher; an across bulkhead can support the retaining walls, the rigidity and pressure bearing performance of the retaining walls can be improved greatly, the thickness of each retaining wall is smaller, and the construction investment cost is lower; size of the material exposed in the air in the material storage bin is smaller, raising amount of dust in feeding and discharging processes is smaller, so that the material with high environmental protection requirement can be stored in the material storage bin, and the environmental protection performance is better.

The invention relates to a method of producing ultra-low sulfur diesel. The diesel distillate is used as raw oil; the single stage or a stage of series process flow is adopted; the feed stock is mixed with hydrogen to pass the hydrogenation reaction area; under the operating condition of hydrorefining, the quality of diesel is improved greatly; wherein, at least one of the catalysts in the hydrogenation reaction area is bulk phase catalyst; the bulk phase catalyst is composed of composite oxide NixWyO z and oxide MoO3 with the weight ratio of 1:10-10:1; the composite oxide NixWyO z and oxide MoO3 account for 40%-100% of the total weight of the catalyst combination. Compared with the prior art, the method of producing ultra-low sulfur diesel in the invention can reduce the operation severity of the hydrorefining reaction area effectively, improve the processing load of the device, prolong the service life of the catalyst or produce the ultra-low sulfur diesel directly.

The invention relates to a low energy consumption sintering flue gas dioxin emission-reducing system and a method thereof. The system comprises a main flue exhaust pipeline, a main dust remover, an air blower, a dioxin desorption system, a closed gas hood, a high dioxin compound flue gas flue, a circulating air pipeline, a dioxin compound desorption flue, a bypass flue, a dust remover, the other air blower, a desulfurizing tower and a chimney. A low-concentration area exhaust box is connected with the main flue exhaust pipeline, passes through the main dust remover, the air blower and the desulfurizing tower in sequence to reach the chimney, and then the flue gas is exhausted to the air. The closed gas hood covers above a sintering machine board trolley; one end of the high dioxin compound flue gas flue is connected with a high-concentration area exhaust box; and the other end of the high dioxin compound flue gas flue is connected with the dioxin compound desorption flue and the main dust remover of the main flue exhaust pipeline. The method comprises the steps of collecting flue gas, removing dioxin in the flue gas, removing dust, desulfurizing, exhausting to the air and the like. The invention greatly reduces the flue gas to be purified and treated, reduces the construction investment and the operation cost, and is beneficial to reducing the emission of various pollutants in sintering flue gas.

The invention provides a basic automation control system for a tandem cold rolling unit with five frames, which comprises a PLC (programmable logic controller ) cluster, an HPC (high performance computing ) controller cluster, a field rolling mill control console, a real-time data acquisition system, a developing and debugging system and a system communication network. By the basic automation control system, automatic roll changing can be realized, roll changing time is shortened, production and maintenance can be carried out easily, and building investment and maintenance cost are reduced greatly. Since a high-speed closed-loop control function is realized, continuously high-speed production on sites is guaranteed. Since a high-speed data acquisition function is realized, the basic automation control system is capable of running safely and efficiently and meeting the requirements to millisecond-level monitoring data during fault analysis of the high-speed closed-loop control system of the tandem cold rolling unit. Since functional units are debugged and controlled to run successfully, structural uniformity of the basic automation control system after modification of programs is guaranteed. The high-speed optical fiber memory map net serves as the communication network, high-speed data exchange is realized by data caching among functional units of the HPC controller cluster, and accordingly high-speed data acquisition of the real-time data acquisition system is realized.

The invention relates to an offshore loading, unloading and mooring system for liquid bulk carriers as well as a mooring method, and the invention is characterized in that the mooring system consists of three sets of mooring device; the mooring device is formed by using connecting components to connect a buoy, a suspension bullback-weight, a chassis bullbacke weight and a anchoring base one by one; when in mooring, each set of mooring device connects the buoy and a carrier together by connecting components, wherein, two sets of mooring device are connected with the head of the liquid bulk carrier; another set of the mooring device is connected with the stern of the liquid bulk carrier; the three sets of mooring device are in Y-shaped arrangement; the mooring system can anchor the liquid bulk carrier in an off-shore sea area to load or unload materials; compared with the prior art, the invention has the advantages of small occupation sea area, low investment, short construction cycle, convenient operation, safety and reliability. Moreover, the invention does not take up shore-line resources, and is easy to be recovered and ruled, as well as especially suitable for the loading and unloading of the liquid bulk carriers.

The invention relates to a technology for preparing high-cleanliness and high-octane gasoline from methanol through a one-step catalysis method. The process of preparing gasoline from methanol is a strong heat release process, and existing technologies for preparing gasoline from methanol at home and abroad all adopt recycle gas (which mainly contains mixed methane, ethane, hydrogen, propane, butane, pentane, carbon monoxide, carbon dioxide and the like) as a heat taking medium to take away heat generated in a reactor, so as to control the outlet temperature of the reactor; liquefied gas (mainly containing propane and butane) produced by a device per se is adopted in the technology to substitute the recycle gas and enters the reactor to serve as a heat removal medium, and the liquefied gas rarely participates in reaction under the same reaction condition, the reaction product is basically unchanged. The technology has the advantages that a recycle gas compressor is not needed, the equipment investment is greatly reduced, the running power consumption of the device is reduced, the heat exchange flow of the device is optimized, the device is simple, stable and reliable in operation, and meanwhile, the public engineering grade is also reduced, so that the technology has significant practicability, huge economic benefits and wide application prospect.

The invention discloses an immersed water treatment device of an inner circulating membrane coagulation reactor, belonging to the field of water treatment. The immersed water treatment device of the inner circulating membrane coagulation reactor comprises an inner circulating membrane coagulation reactor, wherein the main body of the inner circulating membrane coagulation reactor is a reaction tank divided into an upper part and a lower part; the upper part is internally provided with an inner circulating cylinder of which the upper end and the lower end are opened; the inner circulating cylinder is internally provided with a membrane assembly on which a water outlet is arranged; an aeration pipe or an aeration disk is arranged below the membrane assembly; and the upper part of the reaction tank is provided with a turbulent flow member arranged between the inner wall of the reaction tank and the cylinder wall of the inner circulating cylinder. The water treatment device can be used for efficiently relieving pollution of the membrane in the water treatment device and removing pollutants in water and also has the advantages of small occupation area and low construction investment and running cost.