95results about How to "Avoid environmental problems" patented technology

The invention discloses a steel structure three-dimensional workpiece welding seam identification and path planning method and system, and relates to the technical field of robot intelligent welding, and the method comprises the steps: building a multi-view fusion point cloud corresponding to a target workpiece; performing welding seam segmentation on the multi-view fusion point cloud by using a welding seam neighborhood point cloud segmentation model to obtain a multi-view fusion welding seam neighborhood point cloud; performing point cloud plane fitting on the multi-view fusion welding seam neighborhood point cloud to obtain a plurality of target welding seam neighborhood planes; and determining a corresponding welding seam straight line based on each pair of intersected target welding seam neighborhood planes, and identifying a welding path and a welding posture according to the welding seam straight line. The method provided by the invention shows good applicability under a complex background, has the advantages of automation, high efficiency, high recognition precision, strong adaptability and the like, and meets the intelligent and flexible operation requirements of the welding robot.

The invention discloses a method for applying liquid metal as a thermal interface material, and relates to the technical field of thermal management. The liquid metal with high thermal conductivity is selected as a core heat-conducting medium, the liquid metal shows excellent heat-conducting performance at the normal temperature, the gallium-indium-tin alloy with high thermal conductivity is selected as the core heat-conducting medium, the heat-conducting performance of the thermal interface material is remarkably improved, and the heat-conducting performance of the thermal interface material is greatly improved at the normal temperature. The liquid metal shows excellent heat conduction performance and can form an almost unobstructed heat conduction path, so that heat generated by the electronic equipment is quickly transferred to the radiator, in addition, in combination with the intelligent response material layer, the shape memory polymer is subjected to phase change at a specific temperature, the liquid metal is driven to form a closer contact interface, and the heat dissipation efficiency is improved. The interface thermal resistance is further reduced, and the heat conduction efficiency is remarkably improved.

The invention belongs to the technical field of unmanned aerial vehicles, and particularly discloses an unmanned transportation and delivery route planning method and device based on multiple factors, and the method comprises the steps: determining the task demand information of a transportation and delivery task; performing unmanned aerial vehicle matching according to the task demand information to obtain an unmanned aerial vehicle score, and selecting a target unmanned aerial vehicle according to the unmanned aerial vehicle score to execute the transportation and delivery task; obtaining a target path by using a path planning algorithm, and scoring the target path to obtain a target path score; and determining an environmental factor score according to the path voyage and the path points, and performing weighted calculation on the unmanned aerial vehicle score, the target path score and the environmental factor score to obtain a comprehensive score of the target path for reference by a decision maker. According to the invention, the accuracy and efficiency of route planning can be improved.

The invention relates to the technical field of optical fiber communication, in particular to an optical fiber optical frequency transmission field optical fiber link noise simulation method and system, and the method comprises the steps: dividing laser generated by a laser into reference light and simulation light; modulating the analog light, performing field optical fiber transmission, and performing optical frequency processing on the analog light and the reference light to obtain a radio frequency signal; performing phase processing on the radio frequency signal to obtain continuous phase information and frequency conversion data; the method comprises the following steps: constructing an optical fiber optical frequency transmission field optical fiber noise simulation model, converting phase information and frequency conversion data into voltage data by using the noise simulation model, setting a modulation depth parameter according to the voltage data, performing modulation according to the modulation depth parameter, and adjusting the length of a laboratory winding optical fiber according to a modulation result to realize noise simulation. According to the method, different types and different magnitudes of field optical fiber link noise can be simulated.

The invention relates to the technical field of model construction, and provides a river channel hydrodynamic model construction method based on multi-source remote sensing, and the method comprises the steps: obtaining a river channel remote sensing image so as to obtain a waterline, obtaining water level data through a height measurement satellite, and giving an elevation value to a point location corresponding to the waterline according to the waterline and the water level data; the straight river reach is valued according to a specific rule, and the curved river reach is determined according to linear fitting of a plurality of elevation measuring point values on the river section; based on the waterline elevation values of the straight and curved river reach, interpolation is further carried out along the waterline, a riverway terrain digital grid model is constructed, a riverway hydrodynamic model is constructed by using the riverway terrain digital grid model, and the simulation effect of the hydrodynamic model is judged by comparing the water level consistency or the water surface vector form consistency. And calibration and verification of the river hydrodynamic model are realized. And accurate simulation of the river hydrodynamic process is realized. According to the method, the model parameter acquisition cost can be reduced.

On one hand, a current difference calculation model is constructed through a data analysis unit to obtain a current difference, whether a current power distribution system leaks electricity or not is judged according to the current difference, and compared with direct electricity leakage detection in the prior art, the influence of aging and the environment is avoided, internal data are analyzed, and the detection accuracy is improved; meanwhile, the data reprocessing unit is matched with the upper limit testing and analyzing unit to obtain a limit ratio, the limit power supply quantity which can be output by the current system can be measured under layer-by-layer comparison, safety guarantee is carried out again according to the limit power supply quantity, and the problems that the accuracy of monitored data of an existing residual current monitoring mode is insufficient, and the reliability is high are solved. Meanwhile, a reprocessing function for monitoring data is lacked, on one hand, obtained information is incomplete, and on the other hand, the judgment basis accuracy needs to be improved.

According to the air-cooled airing-free packaging folding box gluing assembly machine, a paperboard sucking and grabbing device is installed on a longitudinal axis sliding rail and a transverse axis sliding rail in a sliding mode through a movable truss, a vertical axis lifting support is vertically installed beside the longitudinal axis sliding rail and the transverse axis sliding rail, and a translation mechanical arm is installed on the vertical axis lifting support; machining tables are mounted on the inner sides of the longitudinal-axis sliding rails and the transverse-axis sliding rails; a feeding glue spraying nozzle is mounted on a working part at the tail end of the translation manipulator; and an air curtain device and a negative pressure air guide suction and exhaust device are arranged on the inner sides of the longitudinal axis sliding rail and the transverse axis sliding rail. Multiple functions of gluing, assembling, cooling and the like are integrated, airing and glue overflowing are not needed, and one-time forming can be achieved. And the glue coating amount is controlled very accurately, and waste and excessive use of glue are avoided. And an air cooling technology is adopted, so that the glued folding box can be quickly cooled and shaped, and the problems of time delay and environmental influence caused by a traditional airing mode are avoided. The equipment can meet the production requirements of paper boxes with different sizes and shapes. And the product quality and consistency are ensured.

The invention relates to an intelligent photovoltaic curtain wall which has the function of adjusting light transmission intensity. The surface of the photovoltaic curtain wall is fully covered by the photovoltaic module, the supporting body is installed behind the photovoltaic battery module, and the photovoltaic module is fixed on the supporting body through the module fastener. Air hole channels are arranged among the photovoltaic modules to adjust temperature, and air holes can be connected with external constant-temperature systems such as a central air conditioner, so that the photovoltaic curtain wall has good constant-temperature capability. The photovoltaic cell is located between the guide rails, and the controller controls the driving motor to achieve movement of the cell position, so that the light transmission intensity is adjusted in good time. A mechanical arm and a control motor are arranged in the photovoltaic cell storage box and used for storage and output of photovoltaic cells, and the control motor receives instructions of the controller to operate. The controller is connected with the driving motor and the control motor through data lines, the shielding area ratio of the photovoltaic cell is automatically adjusted according to user requirements, and automatic adjustment of the light transmission intensity is achieved.

The invention discloses a pretreatment system and method suitable for in-furnace incineration of sticky flammable and explosive hazardous waste, and according to the material treatment sequence, the pretreatment system comprises an elevator, a clamping device, a sealing device, a crushing device, a mixing device, a stirring kettle and a pump injection device, the sealing device, the crushing device, the mixing device, the stirring kettle and the pumping device are sequentially connected and jointly form an operation space capable of being isolated from the outside, and viscous flammable and explosive materials automatically flow among the devices in the operation space; and the oxygen content in the sealing device, the crushing device and the mixing device is controlled to be 3-5%. Viscous flammable and explosive materials are sealed in a barrel, the probability that the flammable and explosive materials make direct contact with oxygen is reduced, the oxygen element in combustion is limited, the explosion risk in the conveying process is reduced, other compatible waste liquid is introduced into the viscous materials, mixed and then merged into a furnace to be incinerated, the flowability of the viscous materials can be improved, and the combustion efficiency of the viscous materials is improved. The conveying resistance is reduced.

The invention relates to the field of harmless treatment and processing application of marine plankton, and provides an enteromorpha-based lignocellulose bioplastic and a preparation method thereof, and the preparation method comprises the following steps: 1) airing and crushing enteromorpha; (2) mixing a product obtained in the step (1) with a NaOH solution, carrying out wall breaking treatment in a high-pressure environment, and then magnetically stirring at 95 DEG C for 2-4 hours; (3) carrying out acid sedimentation on the mixed solution; the method comprises the following steps of 1, preparing lignocellulose, 2, carrying out solid-liquid separation, taking a precipitate, and re-dispersing the precipitate in water to obtain a mixed suspension liquid, 5, carrying out ultrasonic dispersion on the mixed suspension liquid, and uniformly stirring to obtain a lignocellulose film-forming slurry, and 6, degassing the slurry obtained in step 5, spreading the slurry on a substrate, drying the slurry, and uncovering the film to obtain the bioplastics.

The invention relates to the technical field of building ceramic production, in particular to a building ceramic wetting powdering production process which is characterized in that in the upgrading and updating dry-method powdering production process link, granulation is carried out, and fine powder is bonded and gathered into granular powder through water drops; the fine powder is uniformly atomized and wetted by fine water mist, so that the fine powder is not granulated. According to the technology, non-stale powder obtained after powder preparation is directly connected with a press for forming, and an anti-sticking roller screen and an anti-sticking material distributing device are used in a matched mode, so that the production effect the same as that of wet-method powder preparation is achieved, meanwhile, the technology route that after slurry grinding, impurity removal and iron removal are conducted through a ball mill in the wet-method powder preparation process, slurry is subjected to filter pressing to form mud, the mud is dried and then crushed into powder, and then wetting powder preparation is conducted is broken through; therefore, a novel powder production process flow which can overcome the defects of a dry-method powder production process and the energy consumption problem of wet-method powder production and is compatible with each other and capable of covering all regions and all categories is formed.

The utility model discloses a fiber reinforced smoke exhaust pipe structure which comprises a smoke exhaust pipe main body, an electromagnetic valve is started to inject clear water into a water tank through a liquid changing pipe, smoke enters the smoke exhaust pipe main body and then is subjected to heat insulation work through a fiber reinforced layer, and a suction pressurization mechanism is started to suck smoke into the water tank through an air inlet mechanism. Smoke is primarily adsorbed and purified through clear water, flows back into the smoke exhaust pipe body through the exhaust assembly to flow upwards, is secondarily adsorbed and purified through the filtering and adsorbing assembly, and is pulled to slide along the inner wall of the limiting sliding groove to be separated from the smoke exhaust pipe body, and then cleaning and replacing work can be conducted. The aims of enhancing the heat insulation and heat resistance strength of the smoke exhaust pipe and automatically purifying and treating the smoke are achieved, and the problems that the heat insulation effect of the smoke exhaust pipe is gradually reduced and the surrounding environment and human health are damaged after the smoke is exhausted due to the fact that a heat insulation coating of an existing smoke exhaust pipe is aged and damaged and the smoke is difficult to automatically purify and treat are solved.

The invention relates to a test device for reinforcing underwater sandy soil based on EICP technology, which comprises an uncovered test box body, the interior of the test box body is divided into a left water storage cavity, a middle grouting cavity and a right water storage cavity along the long edge, the right water storage cavity and the middle grouting cavity are separated by porous steel plates and soil retaining gauze, and the left water storage cavity and the middle grouting cavity are separated by porous steel plates and soil retaining gauze. A grouting pipe, a slurry pumping pipe, an embedded pipe and an ERT measuring line are arranged in the middle grouting cavity. A porous steel plate is adopted in the model to allow water to flow and fully simulate the saturated water environment, and the defect that a traditional model cannot simulate the saturated water environment is overcome. The model can better simulate the real condition of the sandy soil below the underground water level in engineering practice. The ion concentration, pH and conductivity of different parts in the grouting process can be measured through the embedded pipe; and preliminarily judging the generation amount of calcium carbonate at different parts and the reinforcing uniformity through the measured data. The innovation of the model provides an effective test device for the research of reinforcing underwater sandy soil by the EICP technology.

The invention discloses a viscous ink printing method and device, and relates to the technical field of ink printing.The viscous ink printing method is applied to viscous ink printing equipment, and the viscous ink printing equipment comprises a nozzle, a first transducer and a second transducer, the viscous ink printing method comprises the steps of obtaining a target area; calculating operation parameters according to the target area; and according to the operation parameters, the ink jet force applied to the nozzle by the first transducer and the second transducer is adjusted, so that the ink droplet volume is consistent with the target area. According to the technical scheme, the influence of the environment and the air pressure precision is avoided, and therefore the volume precision during ink droplet ejection is improved.

The invention discloses a mechanically activated kaolin modified fly ash phosphoric acid-based geopolymer and a preparation method thereof. The geopolymer is prepared from the following raw materials in parts by weight: 30-75 parts of fly ash, 15-60 parts of mechanically activated kaolin, 8-40 parts of red mud, 0.5-2 parts of a surface modifier, 10-35 parts of an acid activator and 10-35 parts of a solvent. The performance of the geopolymer is optimized, the early and final compressive strength of the geopolymer is improved, through the synergistic effect of the red mud and the mechanically activated kaolin, the preparation cost is reduced, the energy consumption and the environmental influence are reduced, and meanwhile, a new way is provided for resource utilization of the fly ash and other industrial byproducts. The geopolymer disclosed by the invention is suitable for various civil engineering projects such as road construction, foundation reinforcement, environment restoration and the like due to excellent mechanical properties, excellent durability and excellent environmental adaptability, and meets the requirements of sustainable development.

The invention provides a method for preparing a (beta, S)-configuration glassine through enzyme catalysis and an engineering bacterium, and belongs to the field of biosynthesis, the engineering bacterium takes Escherichia coli BL21 (DE3) as an original strain, and an improved carbonyl reductase coding gene shown as SEQ ID No.1 and an improved formate dehydrogenase coding gene shown as SEQ ID No.2 are introduced. The enzyme produced by the strain is used for preparing carbonyl reductase LsADH and formate dehydrogenase PsFDHmut co-immobilized enzyme to carry out enzyme catalytic synthesis of (beta, S) configuration bose, the catalytic reaction is high in selectivity and can be carried out in a normal-temperature and normal-pressure neutral environment, the co-immobilized enzyme can be repeatedly used, and continuous production and cost reduction are facilitated. The conversion rate of the adopted catalytic reaction is greater than 99%, the used substrates beta-acetone xyloside and sodium formate are high in safety, and the synthesis efficiency of the product (beta, S) bose is remarkably improved.

The invention discloses a green and efficient taro cultivation method in the technical field of agricultural cultivation. The method comprises the following steps of 1, preparation before planting, wherein soil preparation and raking are conducted, and fertilizer is applied to furrows; 2, seed selection, germination acceleration and sowing; step 3, film covering and moisture preservation; 4, water and fertilizer integrated management, wherein a water and fertilizer integrated facility is installed; 5, plant type management, wherein redundant lateral branches are pulled out, and the leaf density of plants is adjusted; 6, disease and pest control: comprehensively controlling diseases and pests possibly encountered in the growth process of the taros; step 7, harvesting the taros. The method is easy to operate, the tea bran is applied to taro planting, rich nutrient substances of the tea bran can be used for providing nutrients needed by taro plant growth, investment of chemical fertilizer is reduced, tea saponin contained in the tea bran can inhibit activity of various pathogenic bacteria and prevent and control underground pests, and the taro planting quality is improved. Meanwhile, the removed taro lateral branches are composted together with tea bran, so that green and efficient cultivation is realized, and resources are recycled at the same time.

The invention discloses an easy-to-peel diamond film and a preparation method thereof. The preparation method comprises the following steps: selecting a silicon wafer with a smooth surface as a substrate; activating the surface of the silicon wafer with plasma; coating the surface of the activated silicon wafer with nano-diamond seed crystals; transferring the silicon wafer coated with the seed crystals into MPCVD equipment and diamond growth equipment, introducing a proper amount of nitrogen-containing gas in the process gas except hydrogen-containing gas and carbon-containing gas at the initial stage of growing a diamond film under the condition that the surface temperature of the silicon wafer is lower than 750 DEG C, then adjusting the cavity pressure, the microwave power and the gas formula, continuously heating to a temperature interval suitable for diamond growth, and cooling to room temperature to obtain the diamond film. And cooling and taking out the diamond film after the diamond film grows to a preset thickness. The diamond film grown by the method provided by the invention not only keeps complete and crack-free, but also ensures that the diamond film is completely stripped from the silicon wafer by a physical method, and the stripping surface of the diamond film is high in smoothness, so that the next industrial application is facilitated.

The invention relates to a beautified optical cable cross connecting cabinet, which comprises a cabinet body, and the cabinet body comprises a base, a bottom plate, an upper cabinet frame, a lower cabinet frame, a top cover and a cabinet door. The lower box frame is arranged on the base, the upper box frame and the lower box frame are connected through a side plate, and a left lining plate and a right lining plate are arranged on the inner wall of the side plate; the box door comprises front and rear doors and side doors; each of the front and rear doors comprises a front and rear door plate, a front and rear door lining plate, a fixing pin and front and rear door tempered glass; each side door comprises a side box plate, side box door tempered glass and a side box door; the side box plates are provided with edge folding structures used for placing the posters and sealing the posters at the same time; the inner components are fixedly arranged on the inner sides of the left and right lining plates and used for configuring and adjusting optical fibers in the box body. According to the publicity box, publicity content can be displayed from all angles, the publicity pictures can be effectively protected, and due to the fact that the publicity pictures are replaced inside, the environmental problem caused by loss of the publicity pictures due to various reasons is avoided.

The utility model discloses a device for quickly replacing a feeding plate of a plate feeder, which comprises a first feeding plate, a second feeding plate is correspondingly arranged on one side of the first feeding plate, one end of the first feeding plate is fixedly connected with a first mounting plate, a plurality of first positioning bolts are in threaded connection with the first mounting plate, and a plurality of second positioning bolts are in threaded connection with the second mounting plate. One end of the second feeding plate is fixedly connected with a second mounting plate, the first feeding plate and the second feeding plate can correspond to each other, the integrated conveying plate of the plate feeding machine is replaced by a split type feeding plate, and positioning and locking are carried out through positioning bolts at the two ends. Therefore, replacement of one or more feeding plates can be quickly positioned, the maintenance period is shortened, environmental protection accidents and mechanical accidents caused by equipment are avoided, compared with a traditional feeding plate, the split feeding plate can solve the problem by positioning the position by only one person with an electric wrench, time and labor are saved, the production efficiency is greatly improved, and the production cost is reduced. Therefore, the method has good practicability.

The utility model discloses water quality aeration purification equipment suitable for high ammonia nitrogen fishpond culture wastewater, which comprises a device body, a protection box is arranged in the device body, a base is arranged below the protection box, a suction pump is arranged in the protection box, a mounting rack is connected below the base, and the mounting rack is provided with a water inlet. A first water tank, a second water tank and a third water tank are sequentially connected to the lower portion of the mounting frame, the front end of the suction pump is connected with a water pumping pipe, the rear end of the suction pump is connected with a water inlet pipe, a first placing table and a second placing table are connected to the outer wall of the protection box, a first pesticide box is arranged above the second placing table, and a second pesticide box is arranged above the first placing table. According to the device, the content of dissolved oxygen in wastewater can be increased, a proper aerobic environment is provided for subsequent biological treatment, the concentration of ammonia nitrogen in the wastewater is reduced, the water quality of a fishpond is improved, precipitation of sludge and formation of an anaerobic environment are avoided, and subsequent stable operation of the device is ensured.

The present invention discloses a fully automatic batching system for an ferroalloy ore furnace and a method for using the same, and belongs to the technical field of batching systems. A fully automatic batching system for an ferroalloy ore furnace comprises a mixing box with a stirring structure arranged inside, a master control switch arranged outside the mixing box, a plurality of feed ports arranged on the mixing box, and a mounting seat, the mounting seat being fixedly arranged on the top of the mixing box, a plurality of unloading seats corresponding to the feed ports being evenly arranged in a circle on the mounting seat, the unloading seat comprising a fixed seat fixedly connected to the mounting seat and a rotating seat rotatably connected to the fixed seat, a material cavity for accommodating materials being arranged in the rotating seat, and a capacity adjustment component being arranged in the material cavity; the present invention crushes block materials into granules, and then makes the amount of materials stored per unit area in the material cavity intuitively display its weight, improves the batching accuracy, and makes different materials discharged in proportion in the same batch, thereby ensuring the furnace temperature and production efficiency of the ore furnace.

The utility model relates to the technical field of silica gel water polo, in particular to a sphere inner core protection structure for a noctilucent silica gel water polo. The problems that in the using process of a traditional water injection balloon and a traditional silica gel magnetic water-absorbing balloon, due to the fact that the water injection balloon is a disposable product, garbage generated after the balloon is broken is difficult to clean, and when a magnet in the silica gel magnetic water-absorbing balloon hits a person, the risk of hurting the person is likely to happen, potential safety hazards exist, and therefore recycling and safety and environmental protection are inconvenient to achieve are solved. The utility model provides a sphere inner core protection structure for a noctilucent silica gel water polo. The sphere inner core protection structure comprises a filling assembly and a water storage assembly. Compared with a traditional water injection balloon, in the using process, the water storage function of the filling structure can be improved through the arrangement of the water storage structures, when the balloon shell collides with an external object, water adsorbed by the filling structure can be sprayed out through the multiple water injection structures, and the water injection structures are not limited to water outlet holes and openings of various shapes; therefore, the effects of being reusable, safe, environment-friendly, easy to clean, convenient to carry and simple in process are achieved.

The invention relates to the technical field of quartz carbon coating, in particular to an environment-friendly quartz surface carbon coating device and method, and the method comprises the following steps: S1, quartz container surface treatment; s2, removing air in the quartz container, and placing the quartz container in a vacuum environment; s3, preheating in a vacuum state; s4, carrying out rotary sputtering on the carbon source; and S5, high-temperature calcination is carried out, after calcination is completed, rapid cooling is carried out in a normal-temperature environment, and carbon coating is completed. According to the device and the method, a vacuum carbon source sputtering method is adopted, a carbon source is uniformly sputtered to the surface of quartz, and a formed carbon layer is uniform, compact, high in adhesive force and not prone to falling off. The carbon layer isolates the sample from quartz, the risk of bursting during synthesis is reduced, the quartz container can be repeatedly used, and the cost is reduced.

The invention discloses a system for continuous green electrocatalytic synthesis of high-concentration hydrogen peroxide. The hydrogen peroxide synthesized through electrocatalysis can be directly used for the back-end olefin epoxidation reaction after being concentrated, the safety problem caused by easy explosion in the high-concentration hydrogen peroxide transportation process is avoided, the cost problem caused by hydrogen peroxide transportation is solved, and the greenness and economic added value of the whole technological process are increased. In the electrocatalytic synthesis process of hydrogen peroxide, the solid electrolyte is matched with water for use, so that the problem of subsequent separation caused by use of liquid electrolyte in the traditional electrocatalytic synthesis process of hydrogen peroxide is solved. Compared with an anthraquinone method in which hydrogen peroxide is concentrated from an organic solvent, the method has the advantage that the hydrogen peroxide concentration process is simple, convenient, green and economical due to mixing of water generated by electro-catalysis and hydrogen peroxide in the process.

The invention provides a heavy metal contaminated soil subsurface infiltration method and device. The infiltration method comprises the following steps: arranging a range: selecting a main soil type to carry out sample point arrangement; mounting the device: rotationally feeding the water sampling assembly into the soil layer through the connecting assembly, and adjusting the depth of the water sampling assembly penetrating into the soil layer; intelligent monitoring: automatically adjusting the sampling frequency, the percolation rate, the drainage frequency and the burying time of the device; after the liquid level in the water tank meets the requirement, water is pumped out through a water pump in the multi-stage filter tank, and the collected underground percolate water is sent into an underground liquid collection cavity; the percolation device comprises a mounting plate, and the effective collection and monitoring of the underground percolate of the heavy metal contaminated soil are realized by comprehensively considering the soil type, the soil parent material type, the topographic and geomorphic characteristics, the annual rainfall, the evaporation capacity and the irrigation capacity according to a burying time mechanism which is intelligently regulated and controlled according to the rainfall and the irrigation water quantity.

The utility model discloses a horizontal anaerobic digestion tank stirring shaft seal cleaning device with an automatic detection function. The horizontal anaerobic digestion tank stirring shaft seal cleaning device comprises a sealing assembly, a gas analysis unit, an atomization deodorization unit, a cleaning unit, a pollution discharge unit and a cleaning and atomization deodorization all-in-one machine. The cleaning and atomization deodorization all-in-one machine is respectively connected with and controls the gas analysis unit, the cleaning unit, the atomization deodorization unit and the pollution discharge unit. According to the utility model, the shaft seal area of the stirring shaft of the anaerobic digestion tank can be sealed, odor is prevented from escaping, digested sludge leaked from the shaft seal is guided to be automatically cleaned, and a deodorization agent is automatically sprayed after cleaning, so that the odor influence of the fermented sludge is prevented and controlled.

The application discloses a kind of full-time hot standby fault zero attenuation air supply system and method, it is related to air supply system technical field, the air supply system includes: main fan blade, vice fan blade, deceleration synchronization unit, switching control module, risk prediction module, air supply pressurization module and emergency backup unit.The deceleration synchronization unit is connected to the deceleration of main fan blade and vice fan blade, when main fan blade is fault-free operation, vice fan blade can follow it and rotate at low speed, when main fan blade appears fault or there is predicted fault risk, vice fan blade does not need to start quickly to promote speed from static, avoid the delay problem that vice fan blade starts to stable air supply when traditional double fan group switches, ensure that the airflow barrier of scene is not destroyed, guarantee target area air supply environment stability, simultaneously, vice fan blade is standby by main fan blade synchronous rotation, so that vice fan blade standby process does not need to be driven separately, realize the energy-saving standby effect of system, reduce the problem of traditional double fan simultaneous start energy consumption.

The invention provides a bimetallic nitride catalyst and a preparation method and application thereof, and relates to the technical field of catalysts.The preparation method comprises the steps that ferric nitrate and soluble starch are added into water and stirred to be gelatinized, and gelatinized liquid is obtained; adding zinc nitrate, dicyandiamide and cobalt nitrate into the gelatinized liquid, and uniformly stirring to obtain hydrogel; the hydrogel is subjected to freeze drying, and aerogel is obtained; the aerogel is placed in an ammonia atmosphere, heat preservation is conducted for 2-6 h at the temperature of 850-950 DEG C, the bimetallic nitride catalyst containing the iron-cobalt nitride is obtained, and the bimetallic nitride catalyst is high in oxygen reduction reaction activity and cycling stability.

The invention relates to an enzyme electrode for glucose detection, the enzyme electrode comprises an electrode substrate layer and a sensing layer covering the electrode substrate layer, and the sensing layer comprises NAD (P) (H) dependent glucose oxidoreductase and NAD (P) (H) oxidoreductase; the enzyme electrode further comprises a first polymer layer which covers the sensing layer and is used for protecting the sensing layer and / or limiting permeation of glucose and / or interferents; the enzyme electrode further comprises NAD (P) (H) which is positioned on the sensing layer; and / or a derivative of NAD (P) (H), which is a polymer covalently bound to NAD (P) (H), located in the sensing layer and / or the first polymer layer. The enzyme electrode disclosed by the invention can realize stable, accurate and / or anti-interference continuous detection on the blood glucose level.