124results about How to "Achieve retention" patented technology

The invention discloses a method for producing a wastewater denitrification carbon source through lactic acid fermentation of kitchen waste, and belongs to the technical field of solid waste resourceful treatment. The method comprises the steps of adopting kitchen waste as a raw material; sorting and impurity removal, controlling the solid-to-liquid ratio, grinding, pulping, and carrying out quality-based and phase-splitting treatment; after the waste oil is heated and recycled, the residual garbage slurry is injected into an anaerobic fermentation tank for batch lactic acid fermentation, after fermentation is finished, solid-liquid separation is carried out, lactic acid-containing supernatant can be directly used as a liquid carbon source in the sewage denitrification stage, a good biological denitrification effect is achieved, nitrogen-containing residues can be collected and recycled, and full recycling is achieved. According to the invention, kitchen waste is directly used for efficient open lactic acid fermentation; according to the method, the indigenous microbial flora in the kitchen waste is fully utilized to hydrolyze the substrate and efficiently and directionally convertthe substrate into lactic acid, exogenous nutrition and industrial enzyme preparations do not need to be added, the process is simple, the production cost is low, a cheap carbon source is provided for a denitrification section of a sewage treatment plant while resource utilization of the kitchen waste is realized, and the biological denitrification efficiency is improved.

A foldable display device and a frame device are provided. The present disclosure relates to the foldable display device. The foldable display device includes a display panel on a first cover and a second cover and at least one hinge that connects the first cover and the second cover and the hinge includes a fixing frame, a pair of hinge shafts that passes through the fixing frame, a pair of rotating plates that is fixed to one end of the pair of hinge shafts and fixed to the first cover and the second cover to rotate together with the first cover and the second cover, and a pair of first holding members that is coupled to the pair of hinge shafts between the fixing frame and the pair of rotating plates and controls a folding angle of the first cover and the second cover by a magnetic force, thereby permanently implementing a holding force.

The invention discloses a passive self-flow control water injection system. The passive self-flow control water injection system comprises a safety injection tank, and a self-flow control device which is received in the safety injection tank and communicated with a reactor pit by use of a water outlet pipe; the self-flow control device comprises a volute chamber, and transverse pipe and vertical pipe assemblies; the volute chamber is of a hollow structure and an outlet is formed in the bottom of the volute chamber; the transverse pipe and vertical pipe assemblies are communicated with the hollow structure of the volute chamber, respectively; the positions in which the vertical pipe assemblies are communicated with the volute chamber and the position of the outlet of the volute chamber are arranged so that cooling water in the safety injection tank flows into the hollow structure of the volute chamber via the transverse pipe and the vertical pipe assemblies and then is swirled, and finally flows out via the outlet; the flow in the vertical pipe assembly is reduced as the liquid level in the safety injection tank is reduced, so that the tangential water flow in the volute chamber is gradually reduced; the intensity of vortex in the volute chamber is automatically regulated, and therefore, the flow resistance on an IVR (In-Vessel Retention) injection pipeline is kept relatively consistent with the variation trend of the injection pressure so that relatively stable injection flow in the entire time period can be ensured; besides, the utilization rate of water injected is increased and the passive self-flow control water injection system does not depend on external power.

The invention relates to a method for treating low-temperature slaughter wastewater. The method comprises the following steps: (1) grating slaughter wastewater of 5-15 DEG C through a machine; filtering by a microfilter; conducting oil removal treatment to obtain primarily treated waste water; introducing the primarily treated waste water into an air floatation system; and adding aluminum polychlorid, adding polyacrylamide to obtain pretreated waste water; (2) introducing pretreated waste water into an ultrafiltration membrane system to obtain ultrafiltration membrane permeation liquor; (3) leading the ultrafiltration membrane permeation liquor to flow through filler in a biological aerated filter to obtain biological aerated filter effluent water; and (4) adsorbing the biological aerated filter to obtain biological aerated filter effluent water by activated carbon; and then conducting chlorine dioxide disinfection, or ozone oxidation to obtain purified recycle water. The treatment method is good in treatment effect, stable to run, can work normally within the temperature range from 5 DEG C to 15 DEG C, thereby providing a new method for treating high-concentration organic wastewater at low-temperature regions.

The invention discloses a rubbish percolation liquid disposing technique and system based on film biological reactor-nanometer filter film technique, which comprises the following steps: A. proceeding primary physicochemical disposal for rubbish percolation liquid; removing large particle and heavy metal material in the rubbish percolation liquid; forming front disposal water; B. adopting film biological reactor to do filter film disposal; generating hyperfiltration membrane water; C. filtering hyperfiltration membrane water through nanometer filter system; generating and outputting clean water. The system contains at least reacting pond, sediment pond and relative pump equipment to dispose primary physicochemical disposal, which also concludes nanometer filter system to do filtering disposal for water in the hyperfiltration membrane to output clean water.

The invention relates to a cross-flow whorl solid-liquid separator, which is characterized in a cylinder cyclone room. Wherein, said cyclone room is separated by cylinder catch net into coaxial inner chamber and outer chamber; the bottom of inner chamber is supported by a soil collecting chamber; the water inlet tube is tangentially arranged along cylinder cyclone room; the water inlet is above the inner chamber and through to it; the inlet water-flow is tangentially filled into inner chamber; a tangential overflow water outlet tube is arranged which is through to the outer chamber; the bottom of soil collecting room is through to the soil discharge tube. The invention has high efficiency, lower cost, lower energy consumption, simple operation, and the application for water and waste water pretreatment, to complete filtration and sand deposition in one step.

The invention relates to the technical field of nuclear power. The invention particularly discloses an active and passive combined overall safety system and method for a pressurized water reactor nuclear power plant. The system comprises a safety injection system consisting of an active safety injection system and a passive safety injection system, a reactor cavity water injection system consisting of an active reactor cavity water injection system and a passive reactor cavity water injection system, a containment heat removal system consisting of an active containment spraying system and a passive containment heat removal system, and a steam generator secondary side heat removal system consisting of an auxiliary water supply system, a steam turbine bypass discharge system and a secondaryside passive residual heat removal system. According to the invention, the passive safety system is used as the supplement of the active safety system; the passive technology is fully utilized, the depth defense level and requirements of the nuclear power plant are comprehensively considered, depth defense is enhanced, energy removal under predicted operation events, design benchmark working conditions and design expansion working conditions (including serious accidents) possibly occurring in the nuclear power plant is better coped with, and the safety of the nuclear power plant is greatly improved.

The invention relates to a system for processing radioactive wastes, which is integrated in a movable shelter including a volume-reduction device and a tail-gas processor connected to a pipeline of the volume-reduction device; and both the volume-reduction device and the tail-gas processor are placed in a vacuum environment. The invention provides a movable system for processing radioactive wastes, which reduces storage space, causes little pollution to the environment and is low in storage cost.

The invention relates to a printing and dyeing wastewater reuse, and particularly relates to a device and a method for printing and dyeing wastewater water-soluble dye recovery on the basis of a membrane separation technology. The device comprises a raw water booster pump, a self-cleaning filter, a precise filter, an ultrafiltration membrane assembly, an ultrafiltration backwash pump, an ultrafiltration water tank, a high-pressure pump, a nanofiltration membrane assembly, and a reducer and scale inhibitor pouring system which are communicated with a wastewater collection pool. The method comprises the steps of draining the dyed wastewater to the wastewater collection pool and pumping the dyed wastewater in the self-cleaning filter through the raw water booster pump to remove large-particle suspended matters and impurities, then entering the wastewater into the precise filter to remove the remainder suspended matters, then entering the wastewater into an ultrafiltration membrane to remove bacteria, colloids and macromolecular organic compounds, finally pumping the wastewater in a nanofiltration membrane device through the high-pressure pump to remove micromolecular organic compounds and divalent ions, thereby producing high-quality reclaimed water and simultaneously intercepting and recovering most of activated dye molecules.

The invention relates to an integrated nitrogen and phosphorus recovery device with low energy consumption, which comprises a vertical tank body; the bottom of the vertical tank body is provided with a water inlet ejector; a dosage adding device and a water inlet pipe are connected with the water inlet ejector; one end of a clear water outlet pipe is communicated with the top of the vertical tank body; and the integrated nitrogen and phosphorus recovery device is characterized in that: a fluidization area is arranged on the middle and lower part in the vertical tank body; struvite seed crystal particles are arranged in the fluidization area; the center of the fluidization area is provided with a guide mixer; a space of the tank body under the guide mixer is a water distribution area which is communicated with the water inlet ejector; the top of the vertical tank body is provided with a lifting device; and the guide mixer is arranged on the output shaft of the lifting device. The integrated nitrogen and phosphorus recovery device has the advantages that the integrated nitrogen and phosphorus recovery device quickens the mass transfer process of a system, greatly reduces running cost and operation difficulty, improves interception efficiency and recovery effect of nitrogen and phosphorus, has simple and convenient engineering design and short installation period of construction, does not need external reflux, and has low energy consumption of internal reflux, frequency conversion and speed regulation, easy control of magnesium source externally added, and low content of magnesium in the outlet water.

The invention relates to a reactor melt retention apparatus. The apparatus comprises a catcher shell, a catcher sealing device, a buffer area, a sacrificial material area, a heat insulation layer and a water inlet device. A sacrificial material is used to dilute a melt in order to reduce the heat flow density, and passively cooled melt retention in a channel between the catcher shell and the heat insulation layer is used to realize melt retention under severe accidents in order to alleviate severe accidents, avoid large-scale release of radioactive fission products and reinforce the safety performances of reactors, so the large-scale passive pressurized water reactor severe accident alleviation capability is enhanced.

The invention relates to a biochemical treatment method for improving polymer-containing sewage matrix of the oil field. Polymer-containing sewage is firstly added with a demulsifier and enters a demulsification buffer tank for demulsification, after a pH regulator is added to effluent of the demulsification buffer tank, the effluent enters a pH regulating tank and enters a floatation tank for floatation after pH is regulated, and a flocculant adding point is arranged at an inlet of the floatation tank; effluent of the floatation tank enters a filter, is filtered and then enters a water buffer tank, a compound biological nutritional agent is added, effluent of the water buffer tank sequentially enters an anaerobic tank and an aerobic tank for treatment and performs mud-water separation through a settling pond, a liquid supernatant of the settling pond is discharged after meeting the standard, a part of sludge at the bottom of the settling pond flows back to the front end of anaerobic tank, the remaining sludge and dross produced during floatation enter a sludge concentration tank and are concentrated and dewatered by a dewatering device. The treatment efficiency is high, the load impact resistance ability is high, the operation is stable and standard discharge after treatment of the polymer-containing sewage of the oil field is realized.

The invention discloses a deep sea plankton concentrating in-situ sampling system. The deep sea plankton concentrating in-situ sampling system is not polluted by microorganisms in other sea layers, and intercepts deep sea plankton by using a microbial filter membrane through an uninterrupted work of a magnetic pump so as to achieve a concentrating sampling function. The deep sea plankton concentrating in-situ sampling system is characterized by consisting of a sealed cabin, a magnetic pump subsystem (2) and a control subsystem (4), wherein the magnetic pump subsystem (2) is mounted at the end part of the sealed cabin; the control subsystem (4) is mounted inside the sealed cabin.

The invention discloses a video data storage method and system capable of supporting code stream switching. The method comprises the steps that after a trigger video instruction is received, whether an execution storage task exists or not is judged, when it is judged that the execution storage task exists, whether a first storage code stream of a new storage task corresponding to a newly received video task trigger instruction is higher than a second storage code stream of the execution storage task or not is judged, if yes, the rest execution time is calculated according to the executed time and video duration time in the execution storage task, and then a new storage task is executed after the video data in the next second in the execution storage task are received; if not, the rest execution time is calculated according to the executed time and video duration time of the execution storage task, then the execution storage task is continuously executed in the rest execution time, and the new storage task is executed at the next second after the execution storage task is completed. Through the video data storage method and system, high code streams and low code streams are flexibly switched in the video data storage process to achieve seamless splicing video storage.

The invention relates to the field of tissue manufacturing equipment, in particular to a cable winding disc. The cable winding disc comprises a rack, a winding disc body rotationally arranged on the rack and used for winding a cable, a winding servo motor arranged on the rack and used for driving the winding disc body, and a guide device arranged on the rack, located in front of the winding disc body and used for guiding the cable, a sliding rail parallel to the axial direction of the winding disc is arranged at the position, in front of the winding disc, of the rack, the guiding device comprises an installation base capable of sliding along the sliding rail, a sliding driving device arranged on the rack and used for driving the installation base to slide, a clamping guiding wheel set arranged on the installation base and a guiding servo motor used for driving the clamping guiding wheel set to rotate, the clamping guiding wheel set comprises two guide wheels close to each other, arc-shaped guide grooves are formed in the circumferences of the guide wheels, and the arc-shaped guide grooves of the two guide wheels are matched to form a guide channel allowing the cable to pass through. According to the cable winging disc, the technical problems that cable winding tightness degree is inconsistent, and cables are stacked in a certain area are solved.

The invention relates to a device and method for preparing a biochar-mediated solid biofilm MFC accelerator. The device comprises a microbial fuel cell unit, a heating unit and a vacuum freeze-dryingunit. An anode chamber of the microbial fuel cell unit comprises an anode chamber a region and an anode chamber b region which are separated by a filter plate, and the filter plate is provided with equally spaced sieve holes and a brushed scraper. The present invention also discloses a method for preparing the MFC accelerator by using the device. The preparation of the biochar-mediated solid biofilm MFC promoter is effectively realized, the oxygen-free operation of the preparation process is ensured, the provided preparation device has the advantages of simple and compact structure and convenient operation and plays a positive role in shortening an MFC startup time, rapidly enriching and stabilizing anode chamber microorganisms, effectively improving the sufficiency of MFC organic matter degradation and the efficiency of the conversion of chemical energy into electrical energy in an organic matter, reducing the internal resistance of a battery, and improving the efficiency of electricity generation.

The invention discloses an intelligent monitoring closed-loop operation and maintenance system based on BIM three-terminal synchronization equipment. The system comprises a signal acquisition terminal, a PC terminal, a webpage terminal operation and maintenance platform large screen and a mobile terminal operation and maintenance platform for manual service interaction, wherein the signal acquisition terminal is used for acquiring the working state and working environment data of monitored equipment; data acquired by the signal acquisition terminal is displayed through the PC terminal, the webpage terminal operation and maintenance platform large screen and the mobile terminal operation and maintenance platform. And the PC terminal is provided with a BIM platform. According to the operation and maintenance system provided by the invention, the PC terminal, the webpage terminal operation and maintenance platform large screen and the mobile terminal operation and maintenance platform arecombined, and the data acquired by the signal acquisition terminal is displayed at the same time; the mobile terminal operation and maintenance platform is used for manual service interaction, and auser of the mobile terminal operation and maintenance platform can judge whether the working state and the environment state of monitored equipment are normal or not according to the data displayed bythe mobile terminal operation and maintenance platform and conduct maintenance in time. And a 'three-terminal synchronization + manual service closed loop' structure is realized.

The invention provides a part information management system. The system comprises an information base, a data release module, a data maintenance module, a personal data management module, a data analysis module, a selection management module, a quality control module, a selection early warning module and a process management module. The system integrates rich support databases, formulates a unified and standardized management process of part data through data management software, and forms standardized and structured data.

The invention discloses a waste water biological treatment technology. After passing through a pretreatment unit, waste water enters an aerobiotic unit for aerobic treatment under the action of a first adsorbent and activated sludge, then the mixture of the activated sludge and the first adsorbent is obtained; and the mixture flows back to the pretreatment unit and is taken as the adsorbent of the pretreatment unit for pretreatment of the waste water, wherein the mass concentration of the first adsorbent in the aerobiotic unit is between 50mg / L and 2000mg / L. The invention further provides an industrial waste water biological treatment system which comprises the pretreatment unit and a biochemical treatment unit, wherein the pretreatment unit comprises an adsorption pool, the biochemical treatment unit comprises an aerobiotic pool, the first adsorbent is added into the aerobiotic pool, and the mixture of the first adsorbent and the activated sludge in the aerobiotic pool is recycled by the adsorption pool. The amount of the adsorbent used by the industrial waste water biological treatment technology and the system is less, the treatment cost is low, the technology process is simple, the floor area is small, and the operation and management are simple.

The invention provides an energy management system and belongs to the technical field of energy management. The system comprises a multi-stage data acquisition device, a server and a user management device. The multi-stage data acquisition device is in data connection with the server and is used for acquiring energy consumption data of electric energy, water quantity and heat energy in real time and sending the energy consumption data to the server; a data sending end of the server is in data connection with the user management device and is used for carrying out analytic statistics and data storage on the energy consumption data; and the user management system is in data connection with the server and is used for acquiring energy consumption data of the server and performing energy management.

The invention discloses a method for efficiently treating plant protein wastewater, and belongs to the field of protein wastewater treatment. The method includes 'multistage pre-treatment, efficient anaerobic, anoxia and aerobic' combined technologies, so that efficient anaerobic treatment, stable running and recycling can be carried out on the plant protein wastewater. A 'multistage pre-treatment technology' mainly includes physiochemical per-treatment and biochemical pre-treatment; suspended particles in the plant protein wastewater can be efficiently intercepted by the aid of the physiochemical pre-treatment, and bean pulp resources in the plant protein wastewater can be recycled by the aid of the physiochemical pre-treatment; protein can be destructed by the aid of the biochemical pre-treatment, calcium ions and phosphate radicals can be intercepted by the aid of the biochemical pre-treatment, and anaerobic disturbance influence factors can be eliminated; the pH (potential of hydrogen) and the temperature of inlet water can be reasonably controlled by efficient anaerobic units, accordingly, anaerobic systems can assuredly efficiently and stably run, and the volume load of the anaerobic systems can reach 25 kg / (m<3>.d). Compared with the traditional processes and technologies for plant protein wastewater, the technical method has the advantages of high efficiency, stability, high resource utilization rate and the like. Besides, the plant protein wastewater can be efficiently treated by the aid of the method.

The invention discloses a slope protection structure being answerable for water and soil loss. The slope protection structure comprises a slope protection body, wherein a plurality of stages of stepsare arranged on the slope protection body, a triangular groove belt is arranged in each step, a rainwater filtering device is arranged in each triangular groove belt, each rainwater filtering device comprises two punching plates, a multi-stage covering layer and a drainage channel, wherein the two punching plates are tightly attached to the two sides of the triangular groove belt correspondingly,the multi-stage covering layer is arranged between the two punching plates at one time from top to bottom, the drainage channel is arranged below the multi-stage covering layer, and the drainage channel communicates with a slope surface drainage system. According to the slope protection structure, the rainwater filtering device is arranged on each stage of the step, and stepped interception of precipitation is achieved; when the precipitation amount is small, precipitation can be naturally permeated into the slope surface soil through the punching plates; when the precipitation amount is large, a small amount of precipitation directly penetrates into the slope surface soil, and the remaining precipitation is gathered to the slope surface drainage system through the drainage channels to bedrained; and precipitation is prevented from directly flushing the slope surface, and the water and soil loss of the slope surface is reduced.

The invention discloses an efficient management system and method for scrapped and disassembled parts of an old automobile. Information collection is carried out through setting a service framework ofan information integration center built based on an RFID information system, support is provided for the recycling of an old automobile, and the related information is fed back to an automobile manufacturer and a government supervision department. The service framework of the information integration center established based on the RFID information system comprises a technical support layer, a logistics process subsystem, a database, a recycling management system and an application layer. According to the management system, whether the automobile is scrapped or not and disassembly, repair (remanufacturing), logistics and loading use of scrapped automobile parts can be comprehensively tracked and monitored, archive retention, query and tracing of the whole process are achieved, and then normalization, standardization, procession and safety of the whole automobile scrapped disassembly process are achieved.

The invention provides an axial-movement temperature-controlled glass heat tube which comprises a glass tube and an inner tube. The lower end of the inner tube is a heat collection end, and the upper end of the inner tube is a condensation end; a temperature-controlled telescopic sealing element is arranged in the condensation end of the inner tube and comprises a support fixed in the inner tube, the lower portion of the support is connected with a heat deformation piece which can move in a telescopic mode in the axial direction of the inner tube, and the lower end of the heat deformation piece is further connected with a sealing element; the inner wall of the condensation end of the inner tube is further provided with an annular sealing step of a necking shape, and a gap is kept between the sealing element of the heat deformation piece and the upper side of the sealing step. By arranging the sealing step and the temperature-controlled telescopic sealing element in the inner tube of the glass heat tube, intercepting and releasing working media can be automatically achieved at set temperature, and then the purpose that the temperature of the glass heat tube can be controlled is achieved.

The invention belongs to the field of water pollution control, and particularly relates to quick enriching reaction equipment for anammox. The reaction equipment comprises a reactor, a peristaltic pump and a water inlet box, wherein the reactor is a continuous stirring tank type reactor; a water inlet and a mud pipe are arranged at the bottom part of the reactor; the water inlet box is connected with the water inlet by the peristaltic pump; the top part of the reactor is provided with a thermometer probe, a gas collecting tube and a stirrer shaft seal, so as to ensure that the anaerobic environment is at a strictly-sealed state; and a gas-liquid-solid three-phase separator is arranged in the reactor. By adopting the quick enriching reaction equipment for the anammox, the anammox can be quickly enriched for the anaerobic ammonia oxidizing water treatment technology, the concentration of a substrate in the reactor can be decreased, and therefore, the operating yield and the selectivity of a target product of the reactor can be effectively improved.

The invention provides a large-diameter porous spacing structure used in a biological-cathode microorganism electrochemical system, and relates to a large-diameter porous spacing structure in an electrochemical system. The invention aims to solve the problem of high cost of a spacing material in an existing microorganism electrochemical system. The porous spacing structure main body is in a plateshape or a cylindrical shape and comprises at least one layer of large-diameter porous spacing material, at least one layer of insulation material is arranged in the large-diameter porous spacing material in the structure main body, holes of the large-diameter porous spacing material are opened holes, and the diameters of the holes are 0.1 micrometer to 5 millimeters. The spacing structure is usedfor partitioning a cathode chamber and an anode chamber, the structure has seepage water through capability, and oxygen dissolution between the cathode and the anode at two sides, COD gradient and negative / positive ion conduction capability are maintained; compared with an ion / proton exchange membrane, the structure has the advantage that very low cost can be achieved; and the large-diameter porous spacing structure is suitable for the biological-cathode microorganism electrochemical system.

The invention discloses a park bench. The park bench comprises a bench surface and supporting legs, wherein a movable cleaning mechanism is arranged on the bench surface, an exercise mechanism for driving the movable cleaning mechanism to clean the bench surface is arranged on one side of the bench surface, and the movable cleaning mechanism comprises a through groove extending from the upper endface of the bench surface to the two sides of the bench surface, and a wiping mechanism which moves at the upper end of the bench surface in the setting direction of the through groove. The wiping mechanism comprises a wiping rod, a wiping strip at the lower end of the wiping rod and a sliding block which is integrally arranged with the wiping rod and embedded in the side wall of the through groove and slides, and the wiping strip is in interference abutting against the bench surface. The exercise mechanism comprises a traction rod, a first pressure spring and a cushion, wherein the traction rod is fixedly connected with the sliding block and penetrates through the end, away from the sliding block, of the through groove; the first pressure spring sleeves the traction rod, and the cushion is fixedly arranged at the end, away from the sliding block, of the traction rod; a handle for an exerciser to hold is further arranged at the front end of the cushion. The bench can be cleaned along with exercises while an exercise place is provided, the park bench achieves multiple proposes, and the functions of exercising, resting, helping and environment beautifying are achieved.

A porous plate and strainer coupled upflow-type granular sludge reactor comprises a reactor body; a water distribution unit, an anaerobic reaction unit, a three-phase separation unit and an outflow unit; the bottom of the water distribution unit is provided with an incoming water pipe; the anaerobic reaction unit includes at least one sludge discharge region and at least one porous partition reaction region; the top of the sludge discharge region is adjacent to the porous partition reaction zone; each sludge discharge region is correspondingly provided with one sludge outlet; each porous partition reaction region is fitted with a porous partition; a three-phase separation region of the three-phase separation unit is fitted with a three-phase separator; the outgoing water includes an outflow tank and an outflow pipe; a circular outflow channel is provided between an outflow pier and the inner wall of the reactor body; the outflow tank is provided with the outgoing water pipe. The porousplate and strainer coupled upflow-type granular sludge reactor is equivalent to various UASB (upflow anaerobic sludge blanket) upflowrector series, denitrification rate is high, load impact is too great, and the reaction system is more stable.