42 results about "Green cleaning" patented technology

The utility model discloses a mariculture tail water treatment system. The mariculture tail water treatment system comprises a water inlet pump, a system main body treatment pond, a bacteria-algae bed and a plant floating bed, the water inlet pump is communicated with the system main body treatment pond through a water inlet pipeline, and the water inlet pump is used for inputting mariculture tail water into the system main body treatment pond; the bacteria-algae bed and the plant floating bed are both arranged in the system main body treatment pond, the bacteria-algae bed is used for expanding cultivation of beneficial bacteria and algae species, and the plant floating bed is used for absorbing and fixing nitrogen and phosphorus in water in the system main body treatment pond through developed root systems of planted plants to achieve the purpose of water purification. The mariculture tail water treatment system has the advantages of being small in occupied area, low in energy consumption and the like, can efficiently degrade organic pollutants, nitrogen, phosphorus and the like in mariculture tail water, and has the advantages of being environmentally friendly, clean and the like.

The application provides a low-carbon development green casting application demonstration center, which comprises a molding sand storage area for storing various molding sands used in processing; a negative pressure blank preparation area provided with an automatic sand mixing device, a vibration compaction device and a negative pressure molding device, which is used for preparing frozen sand blanks with a set water-sand mixing ratio and an outer shape size; a frozen processing area provided with a vertical cutting forming equipment for frozen sand molds, a horizontal cutting forming equipment for frozen sand molds and a printing forming equipment for frozen sand molds, which are used for processing frozen sand molds (cores); a cryogenic storage area provided with a cryogenic refrigerator and a partition gradient refrigerator; a smelting and pouring area provided with a negative pressure pouring device; a material transfer channel, which is a special channel planned for an AGV carrier; and a central control system for monitoring and controlling the states of various regional modules and coordinating and planning the actions of each region. The application adopts digital and intelligent equipment, has high production efficiency, high precision and quality of obtained castings, and sand drop can be recycled and reused, and the processing process is green, clean and pollution-free.

The application discloses a kind of high-activity green cleaning agent, its preparation method and application, the high-activity green cleaning agent includes stock solution and diluent liquid;The stock solution is formed by esterification reaction by mixing and heating 2-ethylhexyl phosphate and hydroxyethylidene diphosphonic acid according to weight ratio 1.8-3:1;And / or the stock solution includes 2-ethylhexanol, phosphite, acetic acid-2-ethylhexyl ester, polyisobutylene succinic anhydride and ethylhexyl phosphate;The diluent liquid is formed by mixing according to weight ratio 1:4-3:7 by content >99% formaldehyde and oligomeric water cluster;The weight percentage of the stock solution is 0.8%-1.3%.The application also discloses fuel containing the above-mentioned high-activity green cleaning agent.The high-activity green cleaning agent of the application is a pure petroleum product, is a new type of fuel modifier, by changing the physical properties of fuel to achieve its synergistic effect, oil saving, carbon cleaning, emission reduction effect, suitable for popularization and application.

The utility model relates to the technical field of environmental protection, and discloses municipal road greening cleaning equipment which comprises a cleaning box, universal wheels are symmetrically installed at the bottom end of the cleaning box, a holding rod is fixedly connected to the top of one side of the cleaning box, a partition plate is fixedly connected to the inner wall of the cleaning box, and a collecting chamber and a conveying chamber which are located on the two sides of the partition plate are arranged in the cleaning box. A through opening communicating with the conveying chamber is formed in the bottom end of the sweeping box, a collecting mechanism is arranged in the conveying chamber, and a sweeping mechanism located below the collecting chamber is arranged at the bottom end of the sweeping box; by means of the design of the collecting mechanism, the collecting mechanism can make contact with the road conveniently, then in cooperation with the design of the sweeping mechanism, a broom can sweep leaves on the road, the leaves can be moved into a dustpan conveniently, workers are prevented from picking up the leaves manually or holding the broom with hands to sweep the leaves, and the working efficiency is improved. And therefore, the labor intensity of workers is effectively relieved in the road cleaning process, and the road cleaning efficiency is improved.

The application discloses a green clean energy comprehensive energy-saving management platform based on an Internet of Things intelligent terminal and particularly relates to the technical field of intelligent monitoring and optimal control, and is used for solving the problem that the prior art has no solution or outputs a high-risk operation strategy due to neglecting the coupling relationship between subsystems when dealing with multiple security constraints; through the Internet of Things terminal, operation parameters and security constraint boundaries are acquired, when multiple constraints are close to being reached, the key coupling path of the connected constraint is identified; then, the change of the conflict correlation strength between the constraints under different relaxation schemes is simulated, a target scheme that can reduce the network structure tightness to the maximum extent is selected by constructing and analyzing the conflict relationship network, a group of coordinated constraint boundaries is generated; finally, the global energy efficiency optimization calculation is performed and the equipment set value is output based on the boundaries, so that the coordinated control of the safe and efficient operation of the complex energy system is realized.

The utility model discloses a novel temperature and pressure integrated transmitter screwed plug sheath, which comprises a pressure-resistant shell and a temperature and pressure transmitter, a connecting port is arranged at the front end of the pressure-resistant shell, and a temperature transmission mechanism and a pressure transmission mechanism are arranged in the pressure-resistant shell; and the temperature and pressure transmitter is arranged on the pressure-resistant shell and is connected with the temperature transmission mechanism and the pressure transmission mechanism. The temperature and pressure measuring device is fast to install, and can accurately measure the temperature and the pressure. Transfer liquid and heat-conducting silicone grease cannot be lost after installation, the loss is small, and the cost is saved. Transmitter replacement and maintenance operation can be achieved without well shutdown and emptying, the oil extraction efficiency is improved, and green and clean production in the oil and gas extraction process is assisted.

The present application relates to the technical field of recycling and reuse of stainless steel slag, in particular, a resource recovery process applied to 300 series stainless steel slag, comprising the following steps: firstly, the liquid stainless steel slag produced by the AOD furnace is packaged to obtain 300 series oxidized slag and 300 series slag reduced slag, and then the 300 series oxidized slag is subjected to roller crushing, heat exchange with a membrane cooler, crushing and screening, ball milling, and gravity air separation to recover iron concentrate and tailings, and the 300 series slag reduced slag is subjected to roller crushing, heat exchange with a membrane cooler, crushing, ball milling, and gravity air separation to recover iron concentrate and tailings; at the same time, the waste heat of the liquid steel slag is recovered, and the heat of the roller section is used to upgrade the low-quality steam to a higher-quality steam. The present application can recover metals and heat energy from the difficult-to-treat 300 series stainless steel slag, realize green and clean recovery, and solve the technical problem that the 300 series stainless steel slag needs to be treated by wet method.

The invention provides power generation cloth based on friction power generation and a preparation method thereof.The power generation cloth comprises a first friction assembly and a second friction assembly, and friction-based power generation is achieved through friction between the first friction assembly and the second friction assembly, the first friction assembly comprises a strip-shaped fabric composite layer, a conductive fabric layer and a ring-shaped fabric composite layer, the strip-shaped fabric composite layer and the conductive fabric layer are stacked in parallel, and the ring-shaped fabric composite layer surrounds the strip-shaped fabric composite layer and the conductive fabric layer which are stacked in parallel. The invention belongs to a green, clean and renewable energy source conversion technology. The power generation cloth disclosed by the invention has high elasticity, high flexibility, high flame retardance and washability. According to the power generation cloth, various mechanical energy can be converted into electric energy, the conversion efficiency is improved, and resource waste is reduced to a certain extent.

The application relates to the technical field of chemical solid waste resource utilization and water-based paint, and particularly discloses a process for preparing a water-based conductive primer from TDI production waste, wherein the TDI waste is first pretreated through acidolysis and oxidation, then modified by using a self-prepared vinyl silane oligomer and ground to obtain a water-based slurry; the water-based slurry is used as a seed to coat acrylate monomers through in-situ emulsion polymerization to form a core-shell structure conductive emulsion as a component A; meanwhile, phosphoric acid, phytic acid and the like are compounded to form a component B; and the two components are mixed in proportion and coated during use. The application realizes high-value and resource utilization of the TDI chemical solid waste, and the production process is green and clean; the prepared water-based primer has excellent adhesion, and through construction of a triple synergistic protection system, the composite coating is endowed with excellent long-acting corrosion resistance and storage stability; the VOC content of the whole system is extremely low, and the system is environment-friendly.

This utility model relates to a wind-driven cleaning device for column insulators, comprising a rotating mechanism, several fan blade assemblies, and a brush assembly. The rotating mechanism includes an inner cover and an outer cover. The inner cover is fixedly sleeved on the end of the insulating column of the column insulator. The outer cover is rotatably sleeved outside the inner cover and connected to the inner cover via a bearing. Several fan blade assemblies are circumferentially spaced on the outer wall of the outer cover. Each fan blade assembly includes fan blades, which are fixed to the outer wall of the outer cover and arranged at a certain angle. The brush assembly includes a brush rod and brush bristles. One end of the brush rod is fixedly connected to the outer wall of the outer cover, and the other end extends to the outside of the insulating disc of the column insulator. The brush bristles are fixed at the end of the brush rod away from the outer cover and are embedded between the multiple insulating discs. This device uses natural wind power as its driving force, consumes no additional electricity, achieves green cleaning, is energy-saving and environmentally friendly, and eliminates the need for manual labor, saving a significant amount of manpower, reducing cleaning costs, and also reducing safety hazards.

The application discloses a new energy river sewage treatment intelligent system, physical treatment devices and photocatalytic treatment devices are sequentially arranged along the water flow direction through support frames fixed at both ends of a river; an intelligent control module is in communication connection with the physical treatment devices, the photocatalytic treatment devices and a catalyst recovery device, so that the devices automatically work according to a preset process; solar panels provide power supply for light sources in the photocatalytic treatment devices and the intelligent control module; a front river dam and a rear river dam are used to isolate independent photocatalytic treatment areas for the photocatalytic treatment devices. The application uses a solar photovoltaic system to provide power supply, uses photocatalytic materials as sewage degradation catalysts, uses green clean energy, does not need to consume extra electric energy, is low-carbon and environment-friendly, improves sewage purification efficiency, and is a high-efficiency, low-carbon, environment-friendly and intelligent sewage treatment system.

The present invention provides a method for separating vanadium and chromium from high-chromium vanadium slag, relating to the field of chemical engineering. Using high-chromium vanadium slag as the primary raw material, the method employs a combination of calcined roasting and slow cooling roasting of tailings to significantly improve both the purity of V2O5 and the recovery rate of chromium. This method achieves efficient, simple, and rapid separation of vanadium and chromium from high-chromium vanadium slag, achieving a final V2O5 purity of up to 98.3% and a chromium recovery rate of up to 95%, achieving the goal of green and clean separation of vanadium and chromium.

The invention provides an SIS pressure-sensitive hot melt adhesive green cleaning agent. The SIS pressure-sensitive hot melt adhesive green cleaning agent is composed of the following components in percentage by volume: 0-10% of ester compounds, 35-50% of natural terpene compounds, 35-50% of alkane compounds and 2-8% of 95% ethanol. The SIS pressure-sensitive hot melt adhesive cleaning agent can efficiently dissolve solid SIS pressure-sensitive hot melt adhesive, and the situation that a factory needs to input a large amount of manpower and material resources to clean residual hot melt adhesive on equipment after hot melt adhesive production is finished is avoided; the cleaning agent depends on the theoretical basis of material chemistry and polymer chemistry, and by utilizing the polarity similar dissolvability principle and the Hansen solubility parameter rule (according to the Hansen solubility parameter theory, the closer the dispersion components of the two are, the higher the mutual dissolution degree is), it is ensured that the cleaning agent efficiently dissolves the SIS pressure-sensitive hot melt adhesive; the SIS pressure-sensitive hot melt adhesive can be removed in a simple, non-destructive, low-toxicity and comfortable-smell manner; the SIS pressure-sensitive hot melt adhesive disclosed by the invention is good in cleaning effect and free from obvious peculiar smell, and can better meet the increasing requirements of domestic factories on cleaning of SIS pressure-sensitive hot melt adhesives left on production equipment.

The invention discloses a cleaning agent composition and application. The cleaning agent composition is composed of an acidic cleaning agent with the pH value of 3.0-5.0 and an alkaline cleaning agent with the pH value of 7.0-9.0, wherein the volume ratio of the acidic cleaning agent to the alkaline cleaning agent is (0.01-3): (0.01-2). According to the cleaning agent composition provided by the invention, through scientific compounding of the food-grade oxidant and the food-grade surfactant, the natural color and complete form of peanuts can be kept after cleaning, surface stains and organophosphorus pesticide residues can be effectively removed, and the food safety and commodity value of the peanuts are greatly improved. When the cleaning agent composition is applied to peanut cleaning, the process is mild, no residue exists, the aflatoxin pollution risk possibly caused by hydrogen peroxide can be avoided, and an optimal green cleaning solution is provided for the peanut processing industry.

This invention discloses a method for constructing a programmable, modular, green, clean, biomimetic flexible gripper, belonging to the field of flexible gripper technology. It involves a bio-crosslinking reaction between a natural polymer, sodium alginate, and a novel microbial extracellular polysaccharide gellan gum, followed by the addition of lignocellulose to obtain a mixed solution of a biogel-like electro-actuated layer. A "wheel-like" outer shell mold is then prepared, into which the mixed electro-actuated layer solution is injected and dried. The shell is then dissolved using acetic acid solution to obtain the biogel-like electro-actuated layer. Using sodium alginate solution as a matrix, a two-dimensional ceramic material is hybridized with a metal-organic framework and injected into the solution to prepare a non-metallic electrode film solution. After drying, a non-metallic electrode film is obtained. The prepared non-metallic electrode film is then attached to a pre-reserved groove in the electro-actuated layer to form a flexible gripper with a "squid-like tentacle" structure. This invention features high structural strength, strong adaptability, simple manufacturing process, green and clean operation, and suitability for mass production.

The invention relates to a self-adaptive variable-pitch wind-driven cleaning device for a column insulator. The self-adaptive variable-pitch wind-driven cleaning device comprises a rotating mechanism, a plurality of variable-pitch assemblies, a plurality of fan blade assemblies and a brush assembly. The rotating mechanism comprises an inner cover and an outer shell; the variable-pitch assembly comprises a torque box, a torsion bar and a torque reed; the torque box is fixed on the outer wall of the shell; a torque rod hole is formed in the top of the torque box; the bottom of the torsion bar penetrates through the torque bar hole and is located in the torque box. The torque reed is wound at the bottom of the torsion bar in multiple circles, one end of the torque reed is fixedly connected with the torsion bar, and the other end is fixedly connected with the torque box; the multiple fan blade assemblies are correspondingly arranged at the tops of the multiple torsion bars. By arranging the variable-pitch assembly, the fan blade angle can be changed according to wind power, and the self-adaptive switch cleaning function is achieved. Natural wind power is used as driving force, extra electric power is not consumed, green cleaning, energy conservation and environmental protection are achieved, manual operation is not needed, a large number of manpower resources are saved, the cleaning cost is reduced, and meanwhile potential safety hazards are reduced.

The application belongs to the technical field of cleaning agents, and provides a green ceramic membrane cleaning agent based on reduction synergy and a convenient flux evaluation method. The cleaning agent is composed of an alkaline penetrating stripping agent and an acidic cleaning agent containing a reducing medium. The two-step synergistic process of first alkaline cleaning to strip organic pollution layer and then acid cleaning to reduce and dissolve inorganic scale is adopted. The difficult-to-dissolve Fe 3+ is reduced to easily soluble Fe 2+ , and is complexed and removed, so that the sulfur-iron-organic compound pollution layer can be efficiently broken down. The flux recovery rate of the application is greater than 95%, no H2S gas is released, and no hydroxyl iron colloid is secondarily deposited. The application does not contain strong corrosive components and elements such as phosphorus and halogen, is green and biodegradable, and waste liquid can be directly discharged after neutralization. The application also provides a set of laboratory convenient flux evaluation device, realizes rapid, non-destructive and sealed flux test of small-size membrane sample, provides a reliable means for ceramic membrane cleaning effect evaluation, is gentle to operate, does not damage the membrane, is environmentally friendly and safe, and has significant practical value.

The invention belongs to the technical field of organic compound preparation, and particularly relates to a method for continuously preparing 2-ethyl anthraquinone. The preparation method comprises the following steps: S1, loading an MOF / phosphotungstic acid composite catalyst on the inner wall of a reaction tube of a continuous reactor for later use; s2, taking phthalic anhydride and ethylbenzene as raw materials, and performing Friedel-Crafts acylation, acidolysis and purification to prepare 2-(4-ethylbenzoyl) benzoic acid; s3, in the continuous reactor, under the action of the MOF / phosphotungstic acid composite catalyst, 2-(4-ethylbenzoyl) benzoic acid is subjected to dehydration and ring closing, and 2-ethyl anthraquinone is prepared. By combining the photosensitive ligand, MOF and phosphotungstic acid, the catalytic reaction efficiency and selectivity of 2-ethyl anthraquinone are improved; by optimizing the preparation process of the 2-ethyl anthraquinone, the operation is simplified, the generation of waste acid is reduced, and green and clean, high yield, good production safety and continuous production in the synthesis process of the 2-ethyl anthraquinone are realized.

The invention relates to a bioleaching circulating cleaning method for repairing and regenerating a waste FCC (Fluid Catalytic Cracking) catalyst. The waste FCC catalyst is the waste catalyst with the maximum production displacement. As a typical material source, heavy hazardous waste is involved, and activity recovery and repair regeneration of the waste FCC catalyst represent the high-value utilization direction of the waste FCC catalyst. The regeneration rate of the magnetic separation process is only 20%, and the magnetic separation process has no effect on low-magnetic metal such as vanadium and calcium; and mixed acid cleaning causes structural damage and serious loss of bulk elements. According to the method, selective extraction and green cleaning regeneration are carried out on exogenous deposition elements in the waste FCC catalyst by utilizing mild bioleaching, the generation amount of wastewater is greatly reduced through regeneration and cyclic cleaning of invalid leachate, and the economic benefit of biological cleaning regeneration is improved.

The present invention discloses a novel solar panel cleaning aircraft based on vector rotors. The aircraft comprises a main mast with paired propeller tilting structures fixed on both sides. The aircraft is equipped with a control device on the top, a modular quick-swap battery in the middle, and a brush cleaning structure on the bottom. The tilting structures on both sides are fixed to the main mast by pipe clamps, screws, and nuts. The base of the control device is a flight control fixing plate, with four pipe clamps installed below the plate and fixed to the main mast by screws and nuts. The battery is fixed to the battery latch plate with a cable tie. The battery latch plate has quick-swap pins that match the slots on the battery fixing plate, allowing for modular and rapid removal. The battery is provided with a quick charging port for convenient charging. The battery fixing plate is fixed to the battery fixing rod by six pipe clamps. The present invention can achieve efficient and green cleaning of solar panels, and can also estimate the flight status of the aircraft in real time to control the aircraft's stable flight operation.

This invention belongs to the field of sulfur recovery technology, specifically relating to an ultra-low sulfur emission sulfur recovery process and system. The ultra-low sulfur emission sulfur recovery process of this invention includes a thermal reaction unit, a catalytic reaction unit, a tail gas hydrogenation unit, and a deep purification unit. The acidic gas to be treated recovers sulfur through the thermal reaction, catalytic reaction, and tail gas hydrogenation units, and then connects to the deep purification unit. The sulfur recovery process of this invention fully utilizes the existing conditions of the sulfur recovery unit and makes full use of the waste heat of the unit, achieving a stable SO2 emission concentration in the flue gas below 10 mg / m³. 3 All sulfides are recovered and reused in the form of sulfur, with no secondary pollution, meeting the strictest environmental regulations and achieving green and clean operation of the sulfur recovery unit.

The invention provides a production process of instant fruit grain type instant food, and relates to the technical field of food processing. The process comprises the steps of raw material screening, green cleaning and disinfection, pretreatment, low-temperature vacuum drying, shaping, low-temperature sterilization and classified packaging. Fresh fruits and vegetables without diseases and insect pests are selected as raw materials, green disinfection is conducted through ozone water or ultraviolet rays, the fruits and vegetables are peeled, denucleated and diced, then low-temperature vacuum drying is conducted for 4-6 hours under the conditions of 40-55 DEG C and 0.08-0.1 MPa, then the fruits and vegetables are shaped into square or round or particles through a mold or a pelletizer, and finally the fruits and vegetables are subjected to low-temperature pasteurization to obtain the fruit and vegetable composite material. And sealing by tinplate cans or transparent environment-friendly packages respectively. The finished product does not contain any additive, retains nutritional ingredients such as VC in fruits and vegetables, is tender and sweet in taste and long in storage period, has the characteristics of health, convenience, greenness and fashion, can be used as a nutritional supplement food for military needs and a healthy instant snack for children and the public, and leads a healthy diet life style.

The utility model discloses a portable powder sampler which comprises a sampling sleeve, a plurality of layers of sleeve feeding holes are formed in the side wall of the sampling sleeve, a sampling cabin is arranged below an inner cavity of the sampling sleeve, and a fixing rod and a sampling opening rotating rod are arranged on the top wall of the sampling cabin. The sampling opening rotating rod is used for opening and closing a sampling cabin feeding opening in the sampling cabin; by means of the optimized and improved design of the powder sampler, the powder sampler does not need to carry a power source, powder sampling can be completed under the action of the internal and external pressure difference of the sampler and the dead weight of the powder, and the situation that the powder sampler is stuck due to the fact that impurities with high hardness exist in materials is avoided. Therefore, portability of the powder sampler is achieved, the operation scene is not limited by power supply, and the beneficial effects of being green, clean and capable of reducing the failure rate of the device are achieved.

The invention relates to the technical field of marine litter treatment and discloses a marine litter cleaning device which comprises a hollow aluminum block, a first barrel is inserted into the hollow aluminum block, a water inlet and outlet assembly and a supporting and pressing assembly are installed in the hollow aluminum block, and a pair of driving moving assemblies is arranged at one end of the first barrel. A pair of rectangular through holes are formed in the first barrel body, a filter screen nesting shell is installed at the upper end of the first barrel body, a model is accurately constructed and confirmed through cooperation of various professional software, a reliable basis is provided for subsequent analysis, unmanned green cleaning of the surface of a water area is achieved, green collection and recycling of energy are achieved, and the energy utilization rate is increased. The comprehensive ecological environment is improved, and sustainable development of green economy is realized.

The utility model relates to mold laser cleaning equipment applied to the field of mold production and processing, which comprises a bottom plate, a frame fixedly connected to the upper end of the bottom plate, a plurality of supporting seats fixedly connected to the lower end of the bottom plate, an operating machine and an operating table placed at the upper end of the bottom plate, and a motor fixedly connected to the lower end of the operating table. The output end of the motor movably penetrates through the operation table and is fixedly connected with a driving gear, the middle of the lower end of the operation table is fixedly connected with a bearing seat, a driven gear is arranged above the operation table, the lower end of the driven gear movably penetrates through the operation table and fixedly penetrates into the bearing seat, and the driving gear is meshed with the driven gear. Except for electric energy consumption, no other consumed materials exist, so that the cleaning mode is green, and the environment cannot be polluted; laser cleaning only ablates a coating on the surface of the die, so that damage to a base material of the die is effectively avoided, and the situation that the die is replaced due to the fact that the size of the die does not meet the requirement is effectively reduced.

The invention relates to the technical field of cleaning, and discloses cleaning equipment with a nano-composite coating, the cleaning equipment comprises a key component, the surface of the key component is coated with the nano-composite coating, the nano-composite coating comprises nano titanium dioxide and nano silver, and the key component comprises a sewage tank inner wall, a sewage suction port and a sewage pipeline; the nano coating is applied to key components such as a sewage pipeline, a sewage suction port and the inner wall of a sewage tank of the cleaning equipment, so that the cleaning efficiency of the cleaning equipment can be improved by more than 15%; the application of the nano coating improves the pollution resistance, the wear resistance and the corrosion resistance of the cleaning equipment parts by 50% or above, the service life of the cleaning equipment is effectively prolonged, and the application of the nano coating can reduce the use amount of the chemical cleaning liquid of the cleaning equipment to be within 5%, so that green cleaning is realized.

The utility model discloses a green cleaning system in an adipic acid production process. The green cleaning system comprises a carbon filter, a filtrate receiving tank, a waste carbon filter, an adipic acid slurry tank, a hot high-purity water tank, a hot mother liquor tank, a plurality of electromagnetic valves and a pressure gauge. A hot mother liquor cleaning and high-purity water cleaning electromagnetic valve is arranged on the feeding pipeline, a compressed air electromagnetic valve is arranged above the carbon filter, a discharge electromagnetic valve is arranged below the carbon filter, and the automatic cleaning system is changed through a pressure gauge and front and back liquid levels. According to the utility model, the hot high-purity water tank and the automatic cleaning procedure are added, so that the cleaned high-purity water directly enters the trench without influencing the total nitrogen content, and the sewage treatment pressure is reduced.

The present application belongs to the technical field of biomass energy production process, and particularly relates to a continuous dry method biogenic natural gas production device and method. The device can include a wet material storage pool, a dry material storage pool, a feed mixing bin, a screw conveyor, an adjusting pool, a pH adjusting tank, a first-stage continuous rotary fermentation device, a first-stage strain culture tank, a second-stage continuous rotary fermentation reactor, a solid-liquid separator, a second-stage strain expansion tank, an organic fertilizer production workshop, a discharge device, a desulfurization tower, a biogas gas cabinet, a CO2 storage tank, a membrane separation device and a natural gas storage tank. The present application improves the biogas production rate, volumetric gas production rate and agricultural waste resource utilization level by improving the multi-element raw material ratio, synchronous pretreatment, hierarchical rotary dry anaerobic fermentation, CO2 biological methanation, fermentation system instability early warning, biological carbon capture and storage and other technologies, obtaining green clean energy, and helping to improve the rural environment and achieve the carbon neutralization target.

A gas relay intelligent rain cover power supply device comprises a photovoltaic power generation unit (1), a wind power generation unit (2), a power supply control module (3), a power storage unit (4) and a gas relay intelligent rain cover (5), the photovoltaic power generation unit (1) and the wind power generation unit (2) are electrically connected with the power supply control module (3), and the power supply control module (3) provides electric energy for the gas relay intelligent rain cover (5). According to the utility model, a clean green power supply is provided for the intelligent rain cover through combination of photovoltaic power generation and wind power generation, and an extra power supply is provided for high-power energy supply of the intelligent rain cover by introducing a transformer substation direct-current power supply through the external energy supply module, so that green cleanness and reliable energy supply are both considered, and support is provided for intelligentization of the gas relay rain cover.

The invention relates to the technical field of road greening and maintenance, and discloses smart city road greening and maintenance equipment which comprises a maintenance vehicle, automatic road cleaning equipment is arranged at the bottom of the front side of a front vehicle body, greening cleaning mechanisms are arranged on the two sides of a rear vehicle body, and a photovoltaic power supply assembly is arranged at the top of the rear vehicle body. A small water tank is arranged in the rear vehicle body, a water pump is installed on the side edge of the small water tank and can be connected with a filtering assembly through a pipeline, an automatic feeding mechanism is further arranged on one side of the small water tank, and a garbage cleaning mechanism is arranged on the rear side of the rear vehicle body. The watering and fertilizing functions are achieved through the small water tank and the external water diversion device, the brush roller cleaning mechanism can accurately clean vegetation garbage and prevent dust raising, the camera records the vegetation condition and uploads the vegetation condition to a smart city system for analysis, the automatic feeding assembly and the garbage dumping device reduce manual intervention, and the intelligent maintenance efficiency is improved.