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34results about How to "Speed ​​up the leak" patented technology

Method for promoting anaerobic digestion of excess sludge through pretreatment of ultrasonic waves and hydrogen peroxide

Belonging to the technical field of solid waste treatment, the invention relates to a method for promoting anaerobic digestion of excess sludge through pretreatment of ultrasonic waves and hydrogen peroxide. The method comprises: subjecting the excess sludge of an urban sewage treatment plant to gravity thickening, then adding a certain amount of hydrogen peroxide, conducting rapid stirring and sending the sludge into an ultrasonic reactor for ultrasonic treatment, in which the combined action of ultrasonic waves and hydrogen peroxide destroys the bacterial cell wall structure of the sludge, thus leading to leakage of the cell contents and content increase of dissolved organic matters in water, then sending the treated sludge into an anaerobic digestion reactor for subsequent mesophilic anaerobic digestion; delivering the biogas generated from anaerobic digestion to a gas collection gas for comprehensive utilization. After treatment, the concentration of SCOD (soluble chemical oxygen demand) in the liquid phase sludge can be increased by 23.83 times to 41.18 times, the biogas output can be increased by 17.40%-55.37%, and the methane content of the biogas can be increased by 10%-20%, thus reducing the energy consumption of ultrasonic treatment. For sewage treatment plants of different scales, only by making corresponding modification on existing facilities can good effects be achieved.
Owner:NANKAI UNIV

Method for utilizing enhanced pretreatment to promote anaerobic digestion of excess sludge

The invention relates to a method for utilizing enhanced pretreatment to promote the anaerobic digestion of excess sludge, belonging to the technical field of solid waste treatment. The method comprises the following steps of gravity concentrating excess sludge in urban sewage treatment plants, and then adding certain amount of sodium hypochlorite, stirring the sodium hypochlorite fast with the excess sludge, and then feeding the mixture into an ultrasonic reactor to perform ultrasonic treatment. With the coaction of the ultrasonic and the sodium hypochlorite, the bacterial cell wall structure in the sludge is damaged, the inclusion of the cell is discharged, the content of soluble organic substance in the water is increased, after certain time of treatment, the sludge is fed into an anaerobic digestion reactor to perform subsequent medium temperature anaerobic digestion; the biomass gases generated by the anaerobic digestion are comprehensively utilized through a gas collection device. The concentration of SCOD (soluble chemical oxygen demand) in the sludge liquid phase is improved by about 27 times after the treatment, the biomass gas yield is increased by 54.4%, and the content of methane in the biomass gas is improved by about 10%, so that the energy consumption of the ultrasonic treatment is reduced greatly. With the adoption of the method provided by the invention, for the sewage treatment plants with different sizes, a good effect can be obtained by performing corresponding reconstructions on the existing treatment facilities.
Owner:NANKAI UNIV

Oligomeric quaternary ammonium salt bactericide and preparation method thereof

The invention relates to an oligomeric quaternary ammonium salt bactericide and a preparation method thereof. Ester p-toluenesulfonate-based gemini quaternary ammonium salt, guanidine hydrochloride and sodium alkoxide are added into solvent, stirred and heated to 120 DEG C to 180 DEG C, heating is stopped after 10 to 48 hours of reaction, so that a crude product is obtained, and after post-treatment, the oligomeric quaternary ammonium salt bactericide is obtained; and the substance amount ratio of the ester p-toluenesulfonate-based gemini quaternary ammonium salt, the guanidine hydrochloride and the sodium alkoxide is (0.008 to 0.040):0.008:0.008. The gemini quaternary ammonium salt is introduced to a plurality of active sites, eight active sites are contained in the structure of the oligomeric quaternary ammonium salt bactericide, the oligomeric quaternary ammonium salt bactericide can show good water solubility and surface activity in aqueous solution, and an important role is played in the process of oligomeric quaternary ammonium salt preparation. A bacteria killing test on three types of bacteria, i.e. sulfate reducing bacteria, iron bacteria and saprophytic bacteria, indicates that the oligomeric quaternary ammonium salt bactericide has a good bactericidal effect.
Owner:SHAANXI UNIV OF SCI & TECH

Fire sandbox facilitating sand taking

The invention discloses a fire sandbox facilitating sand taking. The fire sandbox comprises a base, universal wheels, a supporting base, a sandbox body, supporting feet, a groove, a pin, a box cover,a handle, a first motor, a first belt wheel, a second belt wheel, a belt, a rotating shaft, a spiral stirring rod, a sand leaking opening, a second motor and a third motor; and an output shaft of thesecond motor is fixedly provided with a first roller, an output shaft of the third motor is fixedly provided with a second roller, the first roller and the second roller are arranged in the sand leaking opening in parallel, an insertion connection plate is arranged in the bottom of the sand leaking opening in a penetrating manner, a pull ring is installed at one end of the insertion connection plate, a separating plate is further arranged on the base, a water storage box is arranged on the side, far away from the sandbox body, of the separating plate, a high pressure water pump is arranged atthe position, above the water storage box, of the separating plate, a water spraying pipe is arranged in the water storage box, a spraying head is arranged on the top of the water spraying pipe, and acontaining support is arranged above the high pressure water pump. The fire sandbox facilitating sand taking is convenient and quick to operate, the sand taking efficiency is improved, and sand caking is prevented.
Owner:韩志芬

Quick rinse device for fish protein extraction

InactiveCN107118255AImprove rinsing efficiencyAccelerate the speed of dissolving in waterPeptide preparation methodsRinse waterEngineering
The invention relates to the technical field of fish protein extraction, in particular to a quick rinsing device for fish protein extraction. A frame is provided at the bottom of the filter tank; a filter screen is provided in the inner cavity of the frame body; and a filter cloth is provided in the inner cavity of the filter tank; One end of the spring is fixedly connected with the fixed block; the bottom surface of the frame body is pressed against the other end of the spring; the bottom surface of the frame body is provided with a connecting plate; the bottom of the connecting plate is fixed with a vibration device waterproof cover; the limit device and the collecting funnel The inner cavity is fixedly connected. When using the present invention, start the vibrating device in the waterproof cover of the vibrating device; make the whole filter tank vibrate on the spring; accelerate the fish protein and water to dissolve, and at the same time accelerate the leakage of water from the filter cloth; the liquid leaked from the collecting funnel It flows into the collection device through the discharge pipe for concentration; this structure improves the rinsing efficiency of the surimi, accelerates the speed of the protein on the surimi dissolving into water, saves rinsing water, and reduces processing costs.
Owner:荣成市哥弟海洋生物科技有限公司

Automatic catching device for shallow water beach clams

The invention relates to the technical field of marine product catching equipment, and discloses an automatic catching device for shallow water beach clams. The automatic catching device comprises a vehicle plate, front plates are fixedly installed between the front wall face and the rear wall face of the bottom of the left side of the vehicle plate, rear plates are fixedly installed between the front wall face and the rear wall face of the bottom of the right side of the vehicle plate, a rotating rod A is arranged between the bottoms of the two rear plates, wheels are fixedly installed on theouter wall of the rotating rod A, and a beating device is arranged between the two rear plates. According to the automatic catching device for the shallow water beach clams, a catcher holds and pushes the vehicle plate by hand to move on sand which just ebbs tide, the clams and sand bodies are integrally shoveled into a screen, then the beating device, a linkage device and a water splashing device are used in cooperation, so that when the catcher pushes the vehicle plate to move, the shoveled sand can be shaken off and scoured at the same time, clams screened out of the sand are finally left,the structures are used in cooperation and supplemented with each other, and the clam catching efficiency of catchers is improved.
Owner:王显成

Method for preventing and treating tailing sand leakage in tailing pond dam body

The invention discloses a method for preventing and treating tailing sand leakage in a tailing pond dam body. The method comprises the steps that data information of an inner slope of a tailing pond initial dam or the upstream of a tailing leakage position is collected; an inverted filter wall is arranged on the upstream of the inner slope of the initial dam of the tailing pond or the tailing leakage position; the compactness of the inverted filter wall is jointly detected; and data information of a seepage water body at the downstream of a water outlet of the tailing pond and cavity information of a dam body where the inverted filter wall is located are monitored, and setting information of the inverted filter wall is adjusted in time. According to the method for preventing and treating tailing sand leakage in the tailing pond dam body, hardware facilities such as the inverted filter wall are reasonably arranged according to local conditions and data information of the tailing pond dam body, the inverted filter capacity of the dam body is improved, and set parameters of the dam body are revealed; meanwhile, a dynamic monitoring method is provided, and measures and opportunities for crisis such as tailings pond leakage are adjusted in time; and finally, a prevention and treatment system for preventing tailing sand leakage in the tailing pond dam body is formed.
Owner:中国有色金属工业西安勘察设计研究院有限公司

Array substrate and display panel

The invention discloses an array substrate and a display panel. The array substrate comprises a first substrate and active switches, wherein a plurality of active switches are arranged on the first substrate, each active switch comprises a microcrystal layer, the micro-crystal layer is formed from a microcrystal thin film with a preset thickness by a plasma enhanced chemical vapor deposition mode,a high-concentration doping layer is arranged at one end, far away from the first substrate, of the microcrystal layer, and a low-concentration doping layer is arranged at one end, near to the firstsubstrate, of the micro-crystal layer. The microcrystal layer is formed from the microcrystal thin film with the preset thickness by the plasma enhanced chemical vapor deposition mode, and the mobility of the active switches is improved; the high-concentration doping layer and the low-concentration doping layer are respectively arranged above and below the microcrystal layer, so that the increasedcurrent leakage brought by mobility improvement is reduced; and the performance of the array substrate is improved as well as the mobility is improved, meanwhile, the leakage quantity of a leaked current is not increased, the stability of the active switches on performance is ensured, and the display quality of the array substrate is enabled to be improved.
Owner:HKC CORP LTD +1

Drainage device for bathroom

The invention discloses a drainage device for a bathroom. The drainage device for the bathroom comprises drainage pipes and a bathroom base plane. A permeable hard floor tile is arranged on the upperend surface of the bathroom base plane; a sponge layer is fixedly connected to the lower side of the permeable hard floor tile; keel supports are fixedly connected to the inner part of the sponge layer and are in threaded connection with the permeable hard floor tile and a mortar levelling layer through nuts; the mortar levelling layer is arranged on the lower end surface of the sponge layer; a water collecting plate is fixedly connected to the lower end surface of the mortar levelling layer; a water leaking plate is arranged on the lower side of the water collecting plate; buffer sleeves arefixedly connected to the outer parts of water outlet ends of the drainage pipes; filter cylinders are arranged on the lower sides of the inner parts of the drainage pipes; filter covers are fixedly connected to the upper end surfaces of the drainage pipes; driving mechanisms are arranged on the lower sides of the filter covers; rotary shafts are fixedly connected to the lower end surfaces of the driving mechanisms. The drainage device for the bathroom has reasonable and simple structure design, high practicability, and high drainage efficiency.
Owner:NANAN SENTIAN ELECTRICAL & MECHANICAL DESIGN SERVICE CO LTD

Fire safety system for petrochemical plant

The invention discloses a fire safety system for a petrochemical plant. The fire safety system for the petrochemical plant comprises a central processing module (1), an intelligent fire-fighting and alarm device (2), an observation point group (3), a cloud server (4), and a remote monitoring terminal (5), wherein the central processing module (1) is in network communication connection with the intelligent fire-fighting and alarm device (2), the observation point group (3), the cloud server (4) and the remote monitoring terminal (5); the observation point group (3) comprises multiple observation points (6), and each observation point (6) is provided with a combustible gas detection module group (7) and a temperature detection module group (8); and therefore, the central processing module (1) is in network communication connection with all the combustible gas detection module groups (7) and the temperature detection module groups (8). According to the fire safety system for the petrochemical plant provided by the invention, flammable and explosive gas can be automatically monitored, and meanwhile, when an accident occurs, the system can block a fire source so as to limit fire spreading and greatly reduce damage, so that the system has very wide demands and application in practice. Simultaneously, the fire hazard is found as soon as possible by using a detection curve.
Owner:ZHEJIANG ECONOMIC & TRADE POLYTECHNIC

Die-cutting machine capable of preventing poor sleeve position caused by electrostatic adsorption of materials to machine

The invention discloses a die-cutting machine capable of preventing poor nesting caused by electrostatic adsorption of materials to the machine, and belongs to the technical field of die-cutting machines. The die-cutting machine comprises a workbench, a feeding belt, a spraying box and a drying box are installed on the table top of the workbench, an air pump seat is welded to the bottom of the workbench, an air pump is installed on one side of the air pump seat, and a motor is installed on the other side of the air pump seat; an air inlet pipe is welded to the output end of the air pump, a spraying head is installed at one end of the air inlet pipe, the input end of the air pump is inserted into one side of a water tank, an ultrasonic nebulizer is installed in the water tank, a supporting frame is welded to the table top of the workbench, and an electric push rod is installed on one side of the supporting frame. A supporting plate is welded to the output end of the electric push rod. The static electricity removing device is simple in structure and high in practicability, static electricity can be effectively removed when a material is subjected to die cutting, meanwhile, an alarm is given out in time when positioning is inaccurate, and the number of defective products can be greatly reduced.
Owner:苏州鼎佳精密科技股份有限公司

Commodity information display system, method and device and mobile terminal

The invention provides a commodity information display system, method and device, and a mobile terminal, and the system comprises: a plurality of illumination devices disposed on a plurality of shelves, wherein each illumination device comprises a first light fidelity LiFi communication module which is used for transmitting the display information of a commodity on the shelf; a server which communicates with the plurality of illumination devices and is used for acquiring commodity information acquisition requests sent by the plurality of lighting devices, wherein the commodity information acquisition requests comprise identifiers of the lighting devices, determining display information of commodities corresponding to the identifiers, and sending the display information to the lighting devices corresponding to the identifiers; and a mobile terminal which communicates with the first LiFi communication module in the illumination devices through the second LiFi communication module and isused for receiving and displaying the display information sent by the first LiFi communication module. According to the invention, a user can be helped to quickly find the required commodity, the shopping efficiency is improved, and the technical problems of limited acquired commodity information and low shopping efficiency in the prior art are solved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Drainage device applied to bathroom

The invention discloses a drainage device applied to a bathroom. The drainage device comprises a drainage pipe and a bathroom basal plane, wherein water-permeable hard floor tiles are arranged on thesurface of the upper end of the bathroom basal plane; a sponge layer is fixedly connected to the lower side of the water-permeable hard floor tiles; a skeleton bracket is fixedly connected to the interior of the sponge layer, and the skeleton bracket is in threaded connection to the water-permeable hard floor tiles and a mortar leveling layer by virtue of screw caps; the mortar leveling layer is arranged on the surface of the lower end of the sponge layer; a water collection plate is fixedly connected to the surface of the lower end of the mortar leveling layer; a drain plate is arranged at the lower side of the water collection plate; a buffer sleeve is fixedly connected outside of a water outlet end of the drainage pipe; a filter drum is arranged at the lower side of the interior of thedrainage pipe; a filter cover is fixedly connected to the surface of the upper end of the drainage pipe; a transmission mechanism is arranged at the lower side of the filter cover; and a rotating shaft is fixedly connected to the surface of the lower end of the transmission mechanism. The drainage device applied to the bathroom is reasonable and simple in structural design, strong in practicability and high in drainage efficiency.
Owner:黄志勇

A two-stage hdmi connector and its manufacturing method

The invention discloses a two-section type HDMI connector and a manufacturing method thereof. The shielding shell of the two-section type HDMI connector is composed of a shell front end part and a shell rear cover part. The shell front end part is provided with a spacing bulge, a first strip-shaped bulge and a first cambered-surface bulge. The rear end of the shell rear cover part is provided with a cylindrical extension segment. The surface of the shell rear cover part is provided with a second strip-shaped bulge and a second cambered-surface bulge. The shell front end part and the shell rear cover part are integrally molded through the stamping process of complete metal sheets. In this way, the generation of slits is effectively reduced and the shielding function is better achieved. The connection part of the shell front end part is embedded in the front interface part of the shell rear cover part, and the connection part is connected with the front interface part via a buckle connection structure. Therefore, the assembly is simple in operation and the connection is steady in effect. After the shell front end part and the shell rear cover part are connected together, the surfaces of the two parts, except that with a plug-in tongue part, are coated with a copper foil or a tin foil. Since the shell is coated, the shielding effect is further improved. Meanwhile, the leakage of electromagnetic waves is avoided and the resistance of the two-section type HDMI connector to the interference of external signals is improved.
Owner:中山立杰精密器材有限公司

A fire safety system for petrochemical plant

The invention discloses a fire safety system for petrochemical plants, comprising a central processing module (1), an intelligent fire fighting and alarm device (2), an observation point group (3), a cloud server (4) and a remote monitoring terminal (5). ), wherein the central processing module (1) is respectively connected with the intelligent fire fighting and alarm device (2), the observation point group (3), the cloud server (4) and the remote monitoring terminal (5) network communication connection; the observation point group (3) includes a plurality of observation points (6), each of the observation points (6) is provided with a combustible gas detection module group (7) and a temperature detection module group (8); Therefore, the central processing module (1) is respectively connected with all the combustible gas detection module groups (7) and the temperature detection module groups (8) in network communication. The invention automatically monitors flammable and explosive gases, and at the same time, when an accident occurs, the invention can even block the fire source, limit the spread of the fire, and greatly reduce the damage. In practice, there will be a very wide range of needs and applications. . at the same time. Use detection curves to detect fire hazards early.
Owner:ZHEJIANG ECONOMIC & TRADE POLYTECHNIC

Drainage device for bathroom

The invention discloses a drainage device for a bathroom. The drainage device comprises drainage pipes and a bathroom base face; a water-permeable hard floor tile is installed on the surface of the upper end of the bathroom base face, a sponge layer is fixedly connected to the lower side of the water-permeable hard floor tile, keel supports are fixedly connected to the interior of the sponge layerand are in threaded connection with the water-permeable hard floor tile and a mortar leveling layer through screw caps, the mortar leveling layer is installed on the surface of the lower end of the sponge layer, and a water collecting plate is fixedly connected to the surface of the lower end of the mortar leveling layer; a water leakage plate is installed at the lower side of the water collecting plate, buffering sleeves are fixedly connected to the outsides of water outlet ends of the drainage pipes, filtering cylinders are installed at the lower sides inside the drainage pipes, filtering covers are fixedly connected to the surfaces of the upper ends of the drainage pipes, transmission mechanisms are installed at the lower sides of the filtering covers, and rotary shafts are fixedly connected to the surfaces of the lower ends of the transmission mechanisms. The drainage device for the bathroom is reasonable and simple in structural design, high in practicability, and high in drainage efficiency.
Owner:黄印快

Building waste recycling device and using method thereof

The invention discloses a building waste recycling device and a using method thereof, and relates to the technical field of building waste recycling. The construction waste recycling device comprises an adjusting frame, a recycling roller is installed at the top of the adjusting frame and comprises a top supporting cylinder, a middle supporting cylinder and a bottom supporting cylinder, the middle supporting cylinder is located between the top supporting cylinder and the bottom supporting cylinder, a transmission cover is fixedly connected to one side of the top supporting cylinder, and the other side of the transmission cover, the other side of the top supporting cylinder and the two sides of the middle supporting cylinder are fixedly connected with auxiliary rolling mechanisms. The recycling roller arranged at a certain angle is matched with rotation of a material barrel, and valuable magnetic metal and materials with proper diameters in building waste can be recycled through an embedded electromagnet and a filter screen arranged in the recycling roller, so direct discarding of the building waste is avoided, the ecological environment can be protected while materials are saved, and the requirements of green and environment-friendly production construction are met.
Owner:CHINA THIRD METALLURGICAL GRP
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