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30results about How to "Perfect construction" patented technology

Saline-alkali soil drainage, storage, purifying, and recycling system based on sponge city

InactiveCN106592732ASolve the problem of low utilization rateEfficient reuseGeneral water supply conservationSoil drainageWater storageAlkali soil
The invention discloses a saline-alkali soil drainage, storage, purifying, and recycling system based on a sponge city, comprising a purifying water storage channel, a saline-alkali water purifying pond, and a biological filtering pond; the purifying water storage channel comprises a channel body, wherein the top part of the channel body is provided with a slope, and slope plants are planted on the slope; the channel body is internally and orderly provided with a zeolite filler layer, a geotechnical cloth, a planting soil layer and a salt excretion plant; the bottom part of the zeolite filler layer is paved with a water collecting pipe; the saline-alkali water purifying plants are planted in the saline-alkali water purifying pond, and a plant floating block is arranged in the saline-alkali water purifying pond, and the bottom part of the plant floating block is provided with a mesh bag; the top part of the biological filtering pond is provided with a mixer with a cover, and a biological filler is arranged in the filler biological filtering pond. According to the invention, the concept of sponge city is infused to a water circle of the land around the city, the rainwater storage, purification and use of saline-alkali land is contained in the water cycle of the whole sponge city, thus the system is good for constructing a more comprehensive urban sponge body, and providing a new concept for governing the geological pollution of people.
Owner:TIANJIN UNIV

Power transmission line icing early warning method based on micrometeorological and icing historical data

The invention discloses a power transmission line icing early warning method based on micrometeorological and icing historical data. According to the method, by applying a current online monitoring technology, icing monitoring and environmental micrometeorological monitoring are performed; the icing historical data is compared, so that the icing early warning becomes possible; the construction ofan anti-icing emergency system of a power grid is perfected; the difficult problem of application of the existing icing online monitoring technology is solved; the advantages of all-weather work and high timeless of the of the online monitoring technology are brought into full play; an ice condition acquiring mode mainly based on manual ice observation is turned; an efficient anti-icing early warning system with strong perception capability and fast response is established; and safe operation of the power grid in winter is guaranteed.
Owner:EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID

Local air-water reversing upflow biological aerated filter and sewage treatment method thereof

The invention discloses a local air-water reversing upflow biological aerated filter and a sewage treatment method thereof, and relates to a water treatment device and a water treatment method. According to the biological aerated filter, a needle punched nonwoven filter material is taken as a packing, and a plurality of aeration branch pipes are arranged in the height direction of an aeration main pipe. The water treatment method comprises the following steps of: regulating the pH value of sewage to be treated to be 7.5-8, pumping into the filter, pumping air into the filter, ensuring that the hydraulic retention time is 1 to 2 hours, and directly discharging the obtained supernate. Small-flow aeration of which the aeration direction is opposite to upward water flow, the water flow is disturbed on the water flow section, air and water are uniformly distributed, a mass transfer effect is good, phenomena of short flow and channeling can be reduced, anaerobic areas in a system can be effectively eliminated, a membrane is formed uniformly, a problem of poor nitrification effect during operation of the traditional biological aerated filter is solved to a great extent, and the average ammonia nitrogen concentration of effluent is 8.63mg / L. The invention is used for treating wastewater.
Owner:HARBIN INST OF TECH

Public health management system based on medicine taking behavior supervision on patients with chronic disease

PendingCN112768088APerfect construction and maintenanceEasy to track and monitorMedical communicationData processing applicationsMedical emergencyMedication taking
The invention discloses a public health management system based on medicine taking behavior supervision on patients with chronic disease, which comprises a plurality of medicine taking units, a plurality of detection units, a cloud platform server and a public health management end, wherein the medicine taking units and the detection units are in information interconnection with the cloud platform server; and the cloud platform server is in information interconnection with the public health management end. The public health management end is used for supervising and receiving the medicine taking condition and the treatment effect of the patients with chronic disease in the jurisdiction, analyzing and evaluating the medicine taking condition and the treatment effect, and further providing guidance suggestions or issuing instructions to hospitals and related doctors in the jurisdiction to adjust corresponding treatment schemes; and big data analysis is carried out, and a conventional reference treatment scheme is continuously optimized and output to related departments for reference. Through reasonable combination of individual medicine taking behavior monitoring of chronic disease patients and a public health management system, the public health management system is perfected and maintained, and the system can be widely applied to the technical field of chronic disease treatment and monitoring management systems.
Owner:合肥巧士健康科技有限责任公司

Roof rainwater runoff pollutant concentration calculation method and controlled release application thereof

ActiveCN111047180AReflect the changing law of concentrationAdequate experimental basisGeneral water supply conservationResourcesRoof runoffWater quality
The invention belongs to the technical field of resources and environments. An existing method for calculating the roof runoff pollutant concentration through a water quality model is greatly different from reality in the application process, and aiming at the problem in the prior art, the invention discloses a roof rainwater runoff pollutant concentration calculation method, which comprises the following steps of: firstly, defining a typical rain pattern formula of regional rainfall, obtaining a change rule of rainfall of the region in different rainfall recurrence periods through the rain pattern formula, and applying the rule to subsequent steps; secondly, designing a rainfall recurrence period P and a session rainfall duration T of the region, collecting the number Td of sunny days inthe earlier stage of rainfall of the region, selecting a certain roof as an object, and defining the length L and the gradient theta of the roof; and calculating confluence time tc by a formula 2, andselecting a corresponding pollutant concentration calculation formula to describe the change process of the roof runoff pollutant concentration along with time according to the confluence time tc. The computational formula is high in scientificity and high in correlation with experimental data.
Owner:TONGJI UNIV

PE ball valve micro-leakage detection system and detection method

The invention discloses a PE ball valve micro-leakage detection system. The system comprises a pressure and temperature acquisition module used for acquiring air pressure and temperature data in a valve core of a PE ball valve; a wireless signal transceiver used for receiving the data of the pressure and temperature acquisition module and forwarding the data to a host computer; and the host computer used for receiving the air pressure and temperature data forwarded by the wireless signal transceiver. The invention also provides a PE ball valve micro-leakage detection method. The method includes: the pressure and temperature acquisition module is installed in a valve core of a to-be-detected PE ball valve, the valve core of the PE ball valve is closed, and a preset air pressure value is remained in the air pressure in the valve core of the PE ball valve; the pressure and temperature acquisition module acquires detection data of the air pressure and temperature in the valve core of the PE ball valve at the same moment; and the micro-leakage condition of the PE ball valve is evaluated with the combination of the air pressure change gradient after temperature change correction according to the air pressure data change in the valve core. According to the system and the method, long-term detection of the pressure and the temperature of the valve core of the PE ball valve can be conducted, and the micro-leakage performance detection of the PE ball valve is realized.
Owner:CHINA JILIANG UNIV

Air-cooled steel outer template

The invention provides an air-cooled steel outer template, which comprises arc-shaped flanges and straight flanges, wherein a plurality of arc-shaped flange holes are uniformly formed along the length direction of each arc-shaped flange; a plurality of vertical flange holes are uniformly formed along the vertical direction of each straight flange; the arc-shaped flanges and the straight flanges are welded on arc-shaped steel panels respectively; vertical ribs and arc-shaped ribs are welded on the outer sides of the arc-shaped steel panels respectively; triangular ribs are welded on the corners of the arc-shaped steel panel and the vertical ribs; upper veneer panels are welded on the inner sides of the arc-shaped steel panels, and are flush with the upper and lower horizontal lines; lugs are welded on the corners of the arc-shaped steel panels and the arc-shaped flanges.
Owner:POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD

System and method for monitoring ground potential difference

The invention provides a system and a method for monitoring ground potential difference. The system comprises transformer substations and an alternating-current power transmission line, wherein transformer substation grounding flat steel is connected with a neutral point of a main transformer of each transformer substation; the main transformers of the two transformer substations are connected with each other through the alternating-current power transmission line; current flowing through the alternating-current power transmission line is generated by the ground potential difference; a wave recording device is connected between each piece of transformer substation grounding flat steel and the neutral point of the main transformer of the corresponding transformer substation; the wave recording devices are in communication connection with a GSM (global system for mobile communications) / GPRS (general packet radio service) network; the GSM / GPRS network is in communication connection with a server of a monitoring master station; and each wave recording device is also connected with a GPS (global positioning system) synchronizer. A testing loop for monitoring the potential difference between the transformer substations is formed, a ground potential different monitoring network for covering a whole region is realized, a powerful basis is provided for analyzing a logical relationship between ground current activity and a power grid running mode, regional earthquake disaster monitoring and early warning platform establishment are improved, and a criterion is provided for abnormal running states of systems such as electric power systems and communication systems.
Owner:STATE GRID CORP OF CHINA +2

Mode for preventing personal information for being lost and stolen

InactiveCN105512987AAvoid Personal Information QuestionsRemove real concernsData processing applicationsInternet privacyData management
The invention discloses a mode for preventing personal information for being lost and stolen. The mode employs an authentication module for personal information matching through authorization and authentication, employs a substitute character which is autonomously set according to a rule, starts with the authentication of a personal name, is used for daily signature and work of persons, customs clearance and preserve basis, and forms a release link of the personal true identity with retained information and data. A functional department obtains or gathers the personal true information according to the duty and authority through a data management and control center or a related department, thereby achieving an effect of preventing the personal information from being leaked, improving the office efficiency, enlarging the application range, and improving the building of a social safety protection network.
Owner:叶春林

Platform board with projection apparatus

Disclosed is a platform board with a projection apparatus. The platform board comprises the platform board, a solar panel, streetlamps, a storage battery, a lamp post, and the projection apparatus, wherein the solar panel is connected with the top end of the platform board through the lamp post; the projection apparatus is connected with the right side of the upper end of the lamp post; one streetlamp is arranged at each of the left and right ends of the lamp post separately; a player, a control processor, a signal receiver, four LED display screens, four public transport signposts, a navigation map and the storage battery are arranged in the platform board; the control processor is connected with the player, the signal receiver, the LED display screens and the projection apparatus; the projection apparatus can project parking places of get-in public buses. The platform board with the projection apparatus can clearly display public transport lines; meanwhile, the platform board is additionally provided with the solar streetlamps, the navigation map and the projection apparatus, and has functions of indicating the get in time of public buses, and the like; the projection apparatus can project parking places of get-in public buses at night; and therefore, more convenience is brought to life, and the construction of infrastructure is completed.
Owner:HARBIN HONGWANZHI SCI & TECH DEV

Station board provided with automatic change maker

The invention discloses a station board provided with an automatic change maker. The station board comprises a station board main body, a solar panel, streetlamps, a storage battery, a lamp post and the automatic change maker, wherein the solar panel is connected to the top end of the station board main body by virtue of the lamp post; one of the streetlamps is arranged at the left end of the lamp post and the other streetlamp is arranged at the right end of the lamp post; a player, a control processor, a signal receiver, four LED display screens, four bus indicating plates, the automatic change maker and the storage battery are arranged in the station board main body; and the control processor is connected to the player, the signal receiver and the LED display screens. The station board provided with the automatic change maker disclosed by the invention, by virtue of the automatic change maker arranged therein, can facilitate people to make change so as to take buses conveniently; in addition, public routes can be clearly displayed on the station board; and in addition, by adding the solar streetlamps as well as such functions as prompting bus entrance time and the like, the station board can bring about more convenience to people's lives and complete the construction of infrastructures.
Owner:HARBIN HONGWANZHI SCI & TECH DEV

Life evidence sensing-reporting module

The present invention relates to a vital sign sensing-reporting module. It includes a unit shell body in which a vital sign sensor is set, and a sensing signal processing circuit is connected with said vital sign sensor and is used for receiving said vital sign signal and recording its in a vital sign signal memory. Said sensing signal processing circuit also includes a personal data memory for storing user's personal data, a personal therapeutic course data memory and a hospital and medical institution data base. A data transmission interface is connected with said sensing signal processing circuit, and said data transmission interface also is connected with a wireless communication module and a GPS module. Besides, said invention also provides the concrete action of every module, and provides the working principle of said vital sign sensing-reporting module.
Owner:GETAC TECH CORP

Multi-purpose platform board

InactiveCN105788494AAdded stop time reminderPerfect constructionAdvertisingSignsLED displayMobile charge
The invention provides a multi-purpose platform board. The multi-purpose platform board comprises a platform board body, a solar panel, street lamps, a storage battery, a lamp post, a mobile phone charging device and WIFI hotspots, wherein the solar panel is connected to the top end of the platform board body through the lamp post, each of the left and right ends of the lamp post is provided with one of the street lamps, a player, a control processor, a signal receiver, four LED display screens, four bus indicator boards, the mobile phone charging device, the WIFI hotspots and the storage battery are arranged in the platform board body, and the control processor is connected with the player, the signal receiver and the LED display screens. With the multi-purpose platform board, the bus routes can be clearly displayed, meanwhile, the functions of the solar street lamps, the bus get-in time prompt information and the like are increased, and the WIFI hotspots and the mobile phone charging device are also arranged, so that great conveniences are provided for the life of people, and the infrastructure construction is perfected
Owner:HARBIN HONGWANZHI SCI & TECH DEV

User data asset transfer method and operator network system

The invention provides a user data asset transfer method and an operator network system. The method comprises the following steps: receiving a user data asset transfer implementation request sent by asecond APP client; storing the first service data corresponding to the user identifier in the first user service data table and the name of the first user service data table into a user data transferstorage table; obtaining a first user service data table name different from the second user service data table name from the user data transfer storage table; and creating a third user service datatable belonging to the second APP according to preset user data table structures corresponding to the obtained different first user service data table names, and storing the first service data corresponding to the different first user service data table names in the user data transfer storage table into the third user service data table. The user data asset transfer method and the operator networksystem solve the problem that users cannot transfer their own user data assets in the prior art.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Transportation method for electric traction semitrailer

The invention discloses a transportation method for electric traction semitrailers. The transportation method for the electric traction semitrailers comprises the steps that a service area is selected on a highway transportation line, one or a plurality of charging parking spaces or charging facilities are arranged in the service area, and an electric tractor parked in each charging parking space is charged in advance; after the electric traction semitrailers (semitrailer group) starts from the starting place or the last station service area and arrives at the service area after a period of transportation, changing operation of the tractors is conducted, and the tractors with low battery are replaced by the tractors which are fully charged; after the changing operation of the tractors is finished, the semitrailers are pulled to run continuously by the tractors which are fully charged, and the replaced tractors with low battery are charged in the service area, so that tractor changing for the next group of traction semitrailers is well prepared. Whole-process-electrification of long-distance highway transportation is achieved in a relay transporting mode. By implementing the transportation method for the electric traction semitrailer, manufacturing and operating cost can be reduced significantly, transportation operating efficiency and safety of line transportation are improved, and great energy-saving and environmentally-friendly benefits are generated.
Owner:何晓明

A service provision method based on Internet big data

The invention discloses a service provision method based on Internet big data, including Internet data standardization definition, Internet data collection, Internet data preprocessing, Internet data security processing and Internet data service provision. Establish standard specifications for data elements according to national standards or industry standards, model according to standards, and create business logic models based on data element standards; model implementation, reference business logic models, and instantiate models; standard services, by defining data services The protocol standard provides a unified interface service to the outside world. The service provision of Internet big data in the present invention covers the management activities of the whole life cycle from data collection, standardization, data processing, data service, operation period monitoring, etc., based on the ability of data governance, to provide high-quality data and further provide professional Data asset services provide comprehensive support for data asset management and value-added, provide stable and reliable data services, and meet the needs of practical applications.
Owner:中科大数据研究院

Intelligent cultural industry local area construction system and method

InactiveCN109803116ARealization of interactive interactive experienceRealize the function of video callingMechanical apparatusNetwork topologiesHuman bodyTemperature control
The invention relates to an intelligent cultural industry local area construction system and method. The system is composed of a management center host module. The system is composed of a management center host module, a router module, a WiFi module, an interactive interface module, a camera module, a human body sensing module, a temperature control booth module, an environmental management module, and a lighting module. The management center host module is connected to the router module, the temperature control booth module, the environmental management module, and the lighting module throughthe line. the router module is connected with the WiFi module and the interactive interface module through circuits, the WiFi module is connected with the camera module in a wireless connection mode,and the interactive interface module is connected with the human body induction module through a circuit. Visual and multi-mode interactive experience is achieved, local area construction and all-around service of the intelligent cultural industry are achieved, and healthy and rapid development of the cultural industry is promoted.
Owner:PINGDINGSHAN UNIVERSITY

Platform board with temperature and humidity measurement device

The invention provides a platform board with a temperature and humidity measurement device. The platform board comprises a platform board body, a solar panel, street lamps, a storage battery, a lamp post, a temperature and humidity sensor, an A / D converter, a control processor and a temperature and humidity display screen, wherein the solar panel is connected to the top end of the platform board body through the lamp post, each of the left and right ends of the lamp post is provided with one of the street lamps, and the control processor, a player, a signal receiver, bus get-in information display screens, bus indicator boards, the temperature and humidity sensor, the A / D converter, the temperature and humidity display screen and the storage battery are arranged inside the platform board body. With the platform board with the temperature and humidity measurement device, the bus routes can be clearly displayed, meanwhile, the functions of the solar street lamps, the bus get-in time prompt information and the like are added, and the temperature and humidity measurement device is also arranged, so that the outdoor temperature and humidity can be effectively measured in real time, therefore, great conveniences are provided for the life of people, and thus the infrastructure construction is perfected.
Owner:HARBIN HONGWANZHI SCI & TECH DEV

Environment monitoring system for underground goaf of coal mine

The invention relates to an internal environment parameter monitoring system for an underground goaf of a coal mine. The monitoring system mainly comprises the following parts: terminal monitoring nodes, router nodes, a receiving device, an Ethernet server and an upper computer. The terminal monitoring nodes are arranged along the working face and can monitor environment parameters of a goaf. The router nodes are arranged at each distance, the router nodes collect terminal node data and transmit the terminal node data to the receiving device, and underground monitoring personnel obtain internal environment parameters of the goaf through the receiving device. The receiving device synchronizes data to the Ethernet server through a WiFi module, is connected with the ground upper computer through an optical fiber and transmits the data, and the monitoring personnel monitor the temperature of an oxidation zone of the goaf through obtained internal environment parameters of the goaf. A data basis is provided for work such as reasonable working face advancing speed making, gas extraction design, early warning and emergency plans, and intelligent mine construction is further improved.
Owner:LIAONING TECHNICAL UNIVERSITY

Method for assembling barrel body and grinding roller of horizontal roller mill

The invention discloses a method for assembling a barrel body and a grinding roller of a horizontal roller mill. The method comprises the following steps of: (a) assembling an auxiliary platform; (b) hoisting a sliding trolley which is assembled onto a main rail; (c) hoisting the barrel body onto the sliding trolley; (d) hauling the sliding trolley by using traction equipment to move from one side of the main rail to a pedestal of equipment until the sliding trolley arrives above the pedestal of the equipment; (e) fixing the sliding trolley and supporting transverse beams of the sliding trolley respectively by using fixed supports; (f) disassembling steel beams on left side and right side, descending the fixed supports and descending the sliding trolley and the barrel body to the pedestal of the equipment; (g) disassembling the sliding trolley; (h) assembling a maintenance trolley on an auxiliary rail; and (i) hoisting the grinding roller onto the maintenance trolley, hauling the maintenance trolley to move from one side of the auxiliary rail to the pedestal of the equipment until the maintenance trolley and the grinding roller enter the barrel body, and connecting the grinding roller. By adoption of the method, assembly errors can be reduced and stability of the platform is guaranteed.
Owner:TIANJIN 20 CONSTR

Simple bus stop

The invention provides a simple bus stop. The simple bus stop comprises a left stop board, a right navigation board, a middle telescopic rain shed and supporting columns. The middle telescopic rain shed is supported by the left stop board and the right navigation board jointly. The front side of the left stop board is composed of four LED display screens, a player, a bus route board and the corresponding supporting column. A control processor, a signal receiver and a power module are arranged in the left stop board. The right navigation board is a touch navigation map. The lower side of the navigation board is connected with the corresponding supporting column. The telescopic rain shed is composed of a frame and a telescopic rain shade device. The frame is of a semi-rectangular structure. The telescopic rain shade device is composed of a left telescopic arm, a right telescopic arm and an umbrella cover arranged on the telescopic arms. The simple bust stop has the various functions of bus stop time prompting, map navigation, rain shading and the like, more convenience is provided for the living of people, and infrastructure construction is completed.
Owner:HARBIN HONGWANZHI SCI & TECH DEV

A local construction system and method for smart cultural industry

InactiveCN109803116BRealization of intelligent lightingOvercome the defect of single service functionMechanical apparatusLighting and heating apparatusConstruction engineeringInteraction interface
The invention relates to an intelligent cultural industry local area construction system and method. The system is composed of a management center host module. The system is composed of a management center host module, a router module, a WiFi module, an interactive interface module, a camera module, a human body sensing module, a temperature control booth module, an environmental management module, and a lighting module. The management center host module is connected to the router module, the temperature control booth module, the environmental management module, and the lighting module throughthe line. the router module is connected with the WiFi module and the interactive interface module through circuits, the WiFi module is connected with the camera module in a wireless connection mode,and the interactive interface module is connected with the human body induction module through a circuit. Visual and multi-mode interactive experience is achieved, local area construction and all-around service of the intelligent cultural industry are achieved, and healthy and rapid development of the cultural industry is promoted.
Owner:PINGDINGSHAN UNIVERSITY

Incubator and method of incubating mature silkworms by employing same

InactiveCN106857425AConsolidate the basic positionIncrease production levelsAnimal husbandryNatural resourceLight energy
The invention relates to the technical field of mollusc cultivation and in particular to an incubator and a method of incubating mature silkworms by employing the same. According to the incubator, a box body of the incubator is connected to a photovoltaic conversion device, an illuminating device and an environment monitoring device are arranged in the box body, the photovoltaic conversion device is connected to the illuminating device and the environment monitoring device, and a door is arranged on the box body. A method of incubating silkworms comprises the following steps: placing a cocooning tool with baffle plates around in the incubator; and at least placing more than one mature silkworm in the cocooning tool to be cultivated for 40-100h in an environment that the box body temperature is 10-30 DEG C and the relative humidity is 45-90%. With adoption of the technical scheme, a path of sustainable development which is advocated by Chinese government is persisted, and light energy is converted into electric energy by making full use of a photovoltaic (photovoltaic conversion) technology, so that valuable natural resources are saved, the cultivation cost of the mature silkworms is lowered, and the cultivation efficiency of the mature silkworms is greatly increased.
Owner:上海华衍纺织科技有限公司

A system and method for monitoring earth potential difference

The invention provides a system and method for monitoring the earth potential difference, including a substation and an AC transmission line, the ground flat steel of the substation is connected to the neutral point of the main transformer of the substation, the main transformers of the two substations are connected through the AC transmission line, and the earth potential difference is generated For the current flowing through the AC transmission line, there is a wave recording device connected between the ground flat steel of the substation and the neutral point of the main transformer of the substation. The wave device is also connected with a GPS synchronization device. The invention forms a potential difference test circuit for monitoring substations, realizes a ground potential difference monitoring network covering the entire area, and provides a powerful basis for the analysis of the logical relationship between the ground current activity and the grid operation mode. To improve the construction of regional earthquake disaster monitoring and early warning platform, and provide criteria for abnormal operation status of power, communication and other systems.
Owner:STATE GRID CORP OF CHINA +2

Cultural service complex operation and management method and system based on Internet

The invention provides a culture service complex operation and management method and system based on the Internet, and relates to the technical field of management, and the method comprises the steps: S1, obtaining the appointment item information of a target culture activity, and generating an appointment item form according to the appointment item information of the target culture activity; s2, pushing the generated appointment item form to a client of an appointment activity user, and filling information on the appointment item form by the appointment activity user through the client; and S3, carrying out classified auditing on the information filled in the appointment item form. According to the method, the informatization management of the small culture service complex can be realized, so that the management work of workers can be conveniently carried out, and the query, statistics and archiving of related data in the later period are facilitated; information resources are integrated through the system, wherein all resources in the region are integrated, and sharing of the information resources is achieved.
Owner:浙江云朵网科技股份有限公司

Local air-water reversing upflow biological aerated filter and sewage treatment method thereof

The invention discloses a local air-water reversing upflow biological aerated filter and a sewage treatment method thereof, and relates to a water treatment device and a water treatment method. According to the biological aerated filter, a needle punched nonwoven filter material is taken as a packing, and a plurality of aeration branch pipes are arranged in the height direction of an aeration main pipe. The water treatment method comprises the following steps of: regulating the pH value of sewage to be treated to be 7.5-8, pumping into the filter, pumping air into the filter, ensuring that the hydraulic retention time is 1 to 2 hours, and directly discharging the obtained supernate. Small-flow aeration of which the aeration direction is opposite to upward water flow, the water flow is disturbed on the water flow section, air and water are uniformly distributed, a mass transfer effect is good, phenomena of short flow and channeling can be reduced, anaerobic areas in a system can be effectively eliminated, a membrane is formed uniformly, a problem of poor nitrification effect during operation of the traditional biological aerated filter is solved to a great extent, and the average ammonia nitrogen concentration of effluent is 8.63mg / L. The invention is used for treating wastewater.
Owner:HARBIN INST OF TECH

Method for assembling barrel body and grinding roller of horizontal roller mill

The invention discloses a method for assembling a barrel body and a grinding roller of a horizontal roller mill. The method comprises the following steps of: (a) assembling an auxiliary platform; (b) hoisting a sliding trolley which is assembled onto a main rail; (c) hoisting the barrel body onto the sliding trolley; (d) hauling the sliding trolley by using traction equipment to move from one side of the main rail to a pedestal of equipment until the sliding trolley arrives above the pedestal of the equipment; (e) fixing the sliding trolley and supporting transverse beams of the sliding trolley respectively by using fixed supports; (f) disassembling steel beams on left side and right side, descending the fixed supports and descending the sliding trolley and the barrel body to the pedestal of the equipment; (g) disassembling the sliding trolley; (h) assembling a maintenance trolley on an auxiliary rail; and (i) hoisting the grinding roller onto the maintenance trolley, hauling the maintenance trolley to move from one side of the auxiliary rail to the pedestal of the equipment until the maintenance trolley and the grinding roller enter the barrel body, and connecting the grinding roller. By adoption of the method, assembly errors can be reduced and stability of the platform is guaranteed.
Owner:TIANJIN 20 CONSTR

Processing method for basement water-proof concrete construction joint

The invention discloses a treatment method of basement waterproofing concrete construction joints, comprising the following steps of: (1) construction joint arrangement: the construction joint consists of two parts which form ladder shape inside the wall, construction is carried out to the outside construction joint and a substrate together; the inside construction joint is arranged on the substrate and constructed together with the upper wall; (2) water-stopping plate arrangement: a water-stopping steel plate is vertically arranged on the outside horizontal construction joint with the wall higher than the substrate; and (3) concrete pouring: the concrete construction of the outside construction joints and the substrate is finished simultaneously; and the concrete construction of the partabove the inside construction joint and the upper wall is finished simultaneously. By adopting the staged construction joint arrangement, not only the permeating path of the waterproof concrete can beincreased, the impermeable capability of the waterproof concrete is effectively enhanced, and the leakage occurrence of the building is reduced, but also the construction joint left on the wall substrate guarantees the visual quality of concrete surface inside the outside wall, thus solving the problem that the basement concrete wall inside surface has poor visual quality of the construction joint.
Owner:TIANJIN 20 CONSTR

Urban road travel time reliability evaluation method considering cognitive uncertainty

The invention discloses an urban road travel time reliability evaluation method considering cognitive uncertainty, and the method comprises the steps: carrying out the analysis of a plurality of factors affecting the reliability of road travel time through an analytic hierarchy process, selecting a main factor as an evaluation index, determining a target layer, a factor layer, an index layer and a scheme layer, and building an evaluation index system; based on the uncertainty theory, determining the weight of each factor in the factor layer, the weight of each index of the index layer under a certain factor and the weight of each scheme of the scheme layer under a certain index layer; and carrying out weighted analysis on the weights of all the schemes in the scheme layers obtained by all the indexes corresponding to all the factors, and obtaining the optimal scheme in all the schemes according to a given scoring standard. According to the method, objective factors of roads and subjective factors of cognitive uncertainty of travelers are fully considered from the aspect of analytic hierarchy process, and more accurate evaluation of the reliability of the traffic system is provided.
Owner:BEIHANG UNIV
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