284results about How to "Stable supply" patented technology

The invention relates to the technical field of building construction regulation and control, and discloses an efficient construction multi-element real-time dynamic regulation and control method based on an intelligent algorithm, and the method comprises the steps: building a personnel database, and recording the competent work types, skill levels and working experience of personnel; according to a construction project, screening personnel based on an intelligent algorithm, and performing personnel allocation; monitoring the material inventory of the construction project in real time; acquiring data of personnel position, material supply, equipment operation state, construction progress and construction quality of the construction site; based on an intelligent algorithm, adjusting task distribution of the personnel according to the acquired personnel position state data; according to the efficient construction multi-element real-time dynamic regulation and control method based on the intelligent algorithm, human resources can be reasonably utilized, supply of construction materials is guaranteed, the construction efficiency can be effectively improved, the construction quality is guaranteed, and the construction cost is reduced.

According to the energy storage coupling heat pump steam generation method and system, the mode that the heat pump device and the energy storage device cooperatively operate is adopted, and efficient and economical steam supply is achieved. The method comprises the steps that high-temperature water is prepared and stored in the off-peak electricity period through the heat pump device, and the high-temperature water is further heated through the energy storage device to generate superheated steam for a user to use. The energy storage device comprises a plurality of energy storage modules, and a heat exchange pipeline of the energy storage device can be switched between a parallel connection mode and a series connection mode through switching, so that deep heat release and flexible regulation and control are achieved. According to the method, the energy storage capacity and heat release power of the energy storage module are dynamically adjusted, enthalpy increment distribution of the heat pump and the energy storage device is optimized in combination with load prediction, and diversified steam requirements are met. And meanwhile, preheating or dynamic supplement is conducted on the energy storage module through the heat pump device, waste heat recovery is achieved, and the energy efficiency is improved. According to the method, the operation cost is remarkably reduced, the capacity of the system for adapting to load fluctuation is enhanced, and the method is suitable for industrial steam use scenes and has the advantages of being efficient, stable and flexible.

The invention relates to a wafer heater and a chemical vapor deposition system, which are used for solving the technical problem of non-uniform distribution of inert gas on the back surface of a wafer. The wafer heater comprises a heating part used for supporting a wafer and heating the wafer, the upper surface of the heating part is provided with a gas distribution channel, the gas distribution channel comprises a gas inlet and at least one first annular groove surrounding the gas inlet, at least one of the at least one first annular groove is provided with an annular wave line contour, and the gas inlet is communicated with the gas inlet; the plurality of first connecting grooves are radially connected between the air inlet and at least one first annular groove along the radial direction of the first annular groove; and the interface part is arranged at the bottom of the heating part, and the gas inlet is configured to be in fluid communication with an inert gas source through the interface part.

The invention discloses a multi-energy energy management method and a ship, the method is applied to a multi-energy power system comprising a fuel cell, a battery pack and photovoltaic power generation, an energy management optimization model based on model prediction control is established, and the energy management optimization model comprises a prediction model, rolling optimization and a reference trajectory. An energy management strategy is optimized in real time through model predictive control (MPC), conversion and distribution among different energy sources are intelligently managed according to actual energy source requirements and availability, and therefore stable supply of power output is achieved. A multi-energy complementary hybrid power platform is constructed by integrating a hydrogen fuel cell, a lithium battery and a photovoltaic power generation technology, an energy management strategy is optimized in real time through model predictive control (MPC), and efficient and stable use of energy under various navigation conditions is ensured.

The present invention discloses an intelligent control method for an electric control valve actuator for a ship. The present invention pre-processes and comprehensively evaluates the collected fluid pressure data at a ship control center, first calculates the pressure evaluation value within a set time period, then matches it with a preset range interval to obtain a pressure index, and combines it with an ideal pressure index corresponding to the operating condition, so that the valve opening adjustment can better adapt to the host's requirements for changes in fuel pressure under different working conditions. At the same time, for a gradually rising or falling pressure state, the pressure change rate is calculated and the state interval is divided, and the pressure change index is calculated in combination with weight coefficients of different intervals. The opening optimization value and the adjustment direction are determined according to the pressure change index and a preset index value range, thereby achieving precise control, being able to respond in a timely manner to changes in the operating conditions of the ship's main engine and fluctuations in the pressure of the fuel system, effectively ensuring a stable supply of fuel flow and pressure, and improving the operating efficiency and stability of the ship's main engine.

The invention discloses a dual-optimization park-level integrated energy system scheduling method and system. The method comprises the steps of collecting park data, adjusting a scheduling period and constructing an optimization scheduling model. And importing wind power and photovoltaic power generation optimal output data, and constructing an intra-day optimization scheduling model. And outputting an intra-day optimization result to complete a scheduling process. According to the mechanism provided by the invention, through real-time rolling optimization scheduling and load prediction error correction, the flexibility and stability of the integrated energy system are remarkably improved. Load, market price and weather changes are efficiently handled, emergencies are quickly responded, and stable energy supply is ensured. The carbon emission cost is brought into a scheduling target, the balance between economic benefits and an environmental protection target is realized, and the construction of a low-carbon park is assisted. Key problems of multi-time scale balance, demand response, economical efficiency optimization and the like of the park energy system are effectively solved, and technical guarantee is provided for a low-carbon and intelligent comprehensive energy system.

The invention discloses an intelligent solar unmanned logistics distribution control method and system, and relates to the technical field of renewable energy sources, and the method comprises the steps: obtaining real-time weather data and a current geographic position through a vehicle-mounted meteorological sensor and a GPS positioning system; the intelligent energy management system analyzes weather and geographic position data and calculates expected energy output of the solar panel; based on the distribution task list and the current geographic position, a distribution route is planned, the feasibility of the route is evaluated, and an optimal distribution route is generated; according to the optimal distribution route and the current position of the sun, the vehicle speed and the battery use strategy are dynamically adjusted; and after the distribution task is completed, summarizing the distributed energy consumption data and the solar panel efficiency report, and optimizing a dynamic path planning algorithm. Through a series of intelligent control methods, the energy utilization efficiency and the task execution reliability of the unmanned logistics distribution system are improved, and the distribution service quality and the customer satisfaction are further improved through continuously optimizing the path planning algorithm.

The invention discloses an intelligent adjustment power plant combustor and an adjustment method thereof, and relates to the technical field of power plant combustors, and the combustor comprises a combustion assembly, a flue gas circulation assembly, a gas inlet adjustment assembly, a fuel gas supply assembly, a control system and a monitoring module. The controller controls the opening degree of related parts according to fuel, air volume and nitrogen oxide monitoring data, combustion optimization is achieved, and nitrogen oxide emission is reduced. The adjustment method comprises the steps of data setting, starting, ignition, operation adjustment, shutdown and fault processing. The combustor can accurately control all parameters, improve combustion efficiency, enhance safety and reliability, flexibly cope with working condition changes, effectively solve the problems that a traditional combustor is high in nitrogen oxide emission, unstable in combustion and the like, is suitable for the fields such as power plants needing efficient and clean combustion, and has remarkable environmental protection and economic benefits.

The invention discloses a spice processing and dissolving tank with a directional continuous feeding mechanism. The spice processing and dissolving tank comprises a dissolving barrel, a continuous feeding barrel is arranged at the top of the dissolving barrel, a top sealing cover is arranged at the top of the continuous feeding barrel, a buffer discharging barrel is arranged at the bottom of the dissolving barrel, and a servo motor is arranged in the center of the top of the top sealing cover; through precise feeding, precise connection of a raw material container and a feeding branch pipe according to processing requirements, flexible connection of gas supply equipment, adaptation of various media, guarantee of precise and stable supply of raw materials and the media, regulation and control of a rotary sealing frame through cooperation of a magnetic coupling, precise feeding according to requirements and stirring of a spiral cone, continuous and stable feeding and dissolution are achieved, and the efficiency is improved; the spiral cone is matched with the heater to create a dissolving environment, the turbulent flow pipe enhances stirring, the discharging pipe set flexibly pumps materials according to the rhythm, the buffering discharging barrel and the discharging pipe set guarantee safe and stable discharging, the servo motor is used for driving, and all the components are tightly and stably linked.

The invention relates to the technical field of combustion testing, in particular to a testing device for studying the combustion characteristic of nanofluid fuel. The device comprises an operation table, wherein a convenient combustion adjusting mechanism and a waste gas treatment assembly are mounted on the upper surface of the operation table; the convenient combustion adjusting mechanism comprises a storage tank and a combustion chamber, a pump body is arranged between the storage tank and the combustion chamber, a connecting pipeline is connected between the storage tank and the pump body, a pressure adjusting assembly is arranged between the pump body and the combustion chamber, and an outlet of the combustion chamber is connected with a waste gas treatment assembly; a combustion component and an igniter are arranged on the top of the inner side of the combustion chamber. According to the pressure adjusting assembly, fuel flowing and gas supply can be effectively controlled, the combustion process is stable, accurate test conditions are achieved, the reliability of test results is improved, and fuel performance can be deeply analyzed conveniently.

The invention discloses an anaerobic ammonia oxidation membrane biological method and a reactor, and relates to the technical field of sewage treatment.The reaction method comprises the steps that S1, anaerobic ammonia oxidation sludge is inoculated; s2, injecting domestic sewage; s3, domesticating anaerobic ammonium oxidation bacteria; and S4, carrying out intermittent aeration. And stable supply of nitrite in the partial nitrification / anaerobic ammonia oxidation process is realized through intermittent aeration. The reactor comprises a water inlet device, a reactor main body, a membrane assembly, an aeration assembly and a water outlet device, the water inlet device is communicated with the reactor main body, the membrane assembly is arranged in the reactor main body, the membrane assembly comprises a membrane frame and a micro-filtration membrane, the micro-filtration membrane wraps the membrane frame and surrounds to form a filter space, and the filter space is communicated with the water outlet device. The membrane component is used for discharging water, and the micro-filtration membrane has a small pore size, so that microbial sludge can be intercepted in the reactor, sludge-water separation is realized, anaerobic ammonia oxidation sludge in a reaction system cannot be reduced due to water discharging, and 100% of biomass is reserved.

The invention relates to a method for forming a hair follicle-like structure by co-culturing an immortalized hair papilla cell line derived from human hair follicles and keratinocytes. Specifically disclosed is a hair papilla cell line (SV40T-hTERT DPC) which is immortalized by forced expression of SV40T, which deactivates a cancer suppressor gene, in human hair follicle-derived hair papilla cells and hTERT gene, which is a telomerase elongase promoting gene, and keratinocytes, are co-cultured three-dimensionally. From the result, it has been confirmed that a hair follicle-like structure is formed in which a cuticle grows so that a hair follicle analogue in combination with a primary-cuticle hair follicle-derived cell has a shape similar to that of the primary-cuticle hair follicle-derived cell. Therefore, the method can be applied to multiple fields of animal replacement experiments, efficacy evaluation of materials for preventing alopecia / promoting hair follicle growth and the like. Through immortalized hair papilla cells, higher result consistency can be ensured compared with that in the prior art, and stable hair follicle-derived cell supply can be realized, so that the problem of high entry barriers of efficacy evaluation of alopecia materials based on cells is expected to be solved.

The invention relates to the technical field of fossil energy hydrogen production, and discloses a combined heat and power generation coupled natural gas reforming hydrogen production system and a control method. The combined heat and power generation coupled natural gas reforming hydrogen production system comprises a raw material pretreatment unit, a natural gas conversion unit, a combined heat and power generation unit, a medium and low temperature conversion unit and a gas separation unit, the combined heat and power generation coupling natural gas hydrogen production control method comprises the steps that the heat and power distribution ratio of combined heat and power generation is calculated and compared with the water vapor demand quantity under the steady-state working condition, operation selection is conducted according to the comparison result, the heat and power distribution ratio of combined heat and power generation is calculated, and the final distribution ratio of heat and power is obtained. And stable supply of steam and electric quantity of the combined heat and power generation unit is realized. The gradient utilization of energy is realized, the waste heat utilization diversity is increased, and the heat utilization efficiency of the natural gas hydrogen production process is improved.

The utility model is applicable to the technical field of LNG (Liquefied Natural Gas) buffer tanks, in particular to an LNG buffer tank with a gas-liquid separation function, which comprises an upper buffer tank shell and a lower buffer tank shell, and the end surfaces of the upper buffer tank shell and the lower buffer tank shell are fixed together in a welding connection manner. And a plurality of mounting support legs are arranged on the outer sides of the upper buffer tank shell and the lower buffer tank shell. According to the utility model, the gas-liquid separation chamber, the gas outlet pipeline, the gas inlet pipeline, the embedded nut and the gas inlet hot plug nut are arranged in the LNG buffer tank made of the composite plastic material, so that when the liquefied natural gas (LNG) is not fully gasified and is directly fed into the buffer tank, the gas-liquid separation treatment can be efficiently carried out on the LNG; and then the separated liquefied natural gas is subjected to secondary gasification treatment, so that the natural gas entering the buffer tank is ensured to have an extremely high gasification rate. The ultralow-temperature liquefied natural gas is prevented from directly entering the buffer tank, and the buffer tank body is prevented from being damaged due to the too low temperature.

The invention discloses an automatic collector and method for water samples at different water depths, and relates to the technical field of environmental protection, the automatic collector comprises a box body and an energy supply module arranged in the box body, and the energy supply module is used for providing power energy; the environment monitoring module monitors and collects water depth parameters and water quality parameters in real time; the control and communication module is used for receiving and transmitting real-time data monitoring data, constructing a database and sending out a control instruction according to the detection data; the sampling control module comprises a control part, a driving mechanism, a rotating sampling frame and a blocking buckle, the lower end of the blocking buckle is located between adjacent sampling bottles on the rotating sampling frame, and when the control part receives a control instruction, the driving mechanism drives the rotating sampling frame to rotate, so that one sampling bottle on the rotating sampling frame is opposite to the position of the valve; meanwhile, the control valve is opened for sampling, and the control valve is opposite to the opening of the sampling bottle when being completely opened for underwater water sample collection.

The invention relates to a cold energy utilization system and method based on an LNG refrigerator car, the system comprises a refrigeration main circulation loop, the refrigeration main circulation loop comprises a cooling heat exchanger, a fan coil, a buffer tank and a refrigeration circulation pump, and an outlet of the buffer tank communicates with an inlet of the refrigeration circulation pump through a pipeline; an outlet of the refrigeration circulating pump is communicated with an inlet of the heat release side of the cooling heat exchanger through a pipeline, an outlet of the heat release side of the cooling heat exchanger is communicated with an inlet of the fan coil through a pipeline, an outlet of the fan coil is communicated with an inlet of the buffer tank through a pipeline, and therefore the refrigeration main circulation loop is formed. Wherein an outlet of the LNG storage tank is communicated with an inlet of the heat removal side of the cooling heat exchanger through a pipeline, an outlet of the heat removal side of the cooling heat exchanger is communicated with an inlet of the heat removal side of the LNG heat exchanger through a pipeline, and an outlet of the heat removal side of the LNG heat exchanger is communicated with a gas inlet of the gas engine through a pipeline.

The utility model discloses a welding wire supply device for automatic submerged arc welding. In the existing submerged automatic arc welding process, welding work needs to be stopped after welding wires are used up, a new welding wire reel is manually replaced, the number of times of arc starting and arc quenching in the welding process can be increased due to the fact that the welding wires are replaced, and welding defects such as craters and cracks are generated. The welding machine comprises a welding machine body, the welding machine body comprises a movable welding trolley (3), a stand column (4) is vertically fixed to the movable welding trolley, a movable cross beam (5) is fixed to the stand column, and a welding device is fixed to the outer end of the cross beam; a welding wire supply device (1) is placed on the side face of the welding machine body, and a welding wire of the welding wire supply device is supplied to the welding device through a wire guiding mechanism (11). And the welding wire supply device comprises two welding wire reels (1a) which are connected in the box body and are arranged up and down, two wire pressing guide wheels (1e), a double-path wire threading device (1g), an induction heater (1h) and a wire rolling mechanism (1j). The automatic submerged arc welding wire feeding device is used for submerged arc automatic welding wire feeding.

The invention discloses a real-time control method for a fuel cell gas supply system based on an MODDPG algorithm. The real-time control method comprises the following steps: step 1, establishing a model of the fuel cell gas supply system; step 2, acquiring actual state information of the fuel cell gas supply system; 3, performing real-time control on the fuel cell gas supply system based on an MODDPG algorithm; according to the method, the MODDPG algorithm fusing the Pareto theory and the DDPG algorithm is provided, and the problem that global optimization is difficult to achieve in complex multi-objective optimization of a traditional discrete action control strategy is solved. Through a multi-target tradeoff mechanism of the algorithm, the optimization requirement of the fuel cell gas supply system in a complex dynamic environment can be better adapted, and the control strategy realizes optimal balance among different targets, so that the applicability and robustness of the control method are enhanced, and the overall efficiency and stability of system operation are improved.

A raw material adding device for plastic product production comprises a box body, a conveying roller in the horizontal direction is arranged in the box body in a penetrating mode, the two ends of the conveying roller are arranged on the inner wall of the box body, lyophobic holes are formed in the conveying roller, a partition plate is arranged in the middle of the interior of the box body and divides the interior of the box body into a coating area and a dust removal area, and the coating area comprises a water pump, a material storage box, a liquid outlet pipe and a spray head; a storage box is arranged at the top of the box, a water pump is arranged on one side of the storage box, a liquid outlet pipe is inserted below the storage box and penetrates through the outer wall of the box, a nozzle is arranged below the liquid outlet pipe, and a motor is arranged on the side, away from the storage box, of the top of the box. Efficient dust removal of the surfaces of raw materials is achieved through the cleaning brush and the dust collection system; the height of the cleaning brush is adjusted through the electric telescopic rod, and the cleaning brush can adapt to raw materials of different specifications; the dust suction pipe is connected with the outside of the box body and sucks dust generated in the dust removal process, so that the dust is effectively prevented from polluting the working environment, and the cleanliness and the overall quality of a product are improved.

The invention discloses a method for improving cell growth and expression by changing an iron form in a culture medium, and relates to the technical field of cell culture, the culture medium comprises a basic culture medium, a supplemented culture medium and an iron source; wherein the iron source is FeCl3, the basic culture medium and the supplementary culture medium are commercially available culture media, the iron source is not added or removed, and the culture media further contain a three-dimensional culture material; the redox balance of the culture medium can be maintained, oxidative stress damage of cells is prevented, hydrolysis or precipitation is not prone to occurring, the preparation process of the culture medium is simplified, and the requirements of cell growth and expression are met.

The utility model discloses a vacuum feeding system which comprises a suspension supporting assembly and a vacuum feeding assembly, the suspension supporting assembly comprises a supporting frame, a roller traction device is detachably arranged on the supporting frame, a ton bag is connected with a driving air cylinder through the roller traction device, and the vacuum feeding device is connected with the driving air cylinder through the roller traction device; the driving air cylinders are fixed to the two sides of a supporting frame of the suspension supporting assembly, telescopic rods of the driving air cylinders are connected with the roller traction device and the regulation and control device, the vacuum feeding device comprises a material suction head, a vibration device is arranged in the material suction head, and one end of the material suction head is connected with a batch feeder through a feeding pipeline. The ton bag and the vacuum feeding device are hoisted through the suspension supporting assembly, the ton bag does not need to be lifted or provided with a discharging port, vacuum feeding can be carried out on the ground, a negative pressure cavity is formed through the Roots blower, materials are conveyed from bottom to top, the feeding process is monitored in real time in cooperation with the metering scale, and the feeding efficiency is improved. The problem that discharging is uneven or a discharging opening is blocked due to bridging of materials is effectively solved.

The utility model relates to a stable integrated pneumatic control module and a pneumatic device with the module. The stable integrated pneumatic control module comprises an integrated base, and an air channel set is formed in the integrated base; the device further comprises a control circuit board, a first electromagnetic valve and a second electromagnetic valve. External compressed air enters the pneumatic control module through an air inlet of the first electromagnetic valve, an air outlet of the first electromagnetic valve is communicated with the air channel set, and an air inlet and an air outlet of the second electromagnetic valve are both communicated with the air channel set. Two air cylinder communicating holes communicating with an external air cylinder are formed in the surface of the integrated base. The first electromagnetic valve is used for controlling the amount of the inlet compressed air, and the second electromagnetic valve is used for controlling the movement direction of a piston rod of an external air cylinder. By arranging the control circuit board, the first electromagnetic valve and the second electromagnetic valve, the air inflow of compressed air can be accurately controlled in real time according to the movement direction of the piston rod, so that the stress on the two sides of the piston of the air cylinder is balanced no matter the piston rod extends outwards or retracts inwards, and it is guaranteed that the output force of the air cylinder is kept in a stable and constant state; and stable liquid conveying and supplying are achieved.

The utility model relates to the technical field of homogenizers, and discloses a double-screw homogenizer which comprises a shell and a mounting seat, a rotating shaft is arranged on the inner wall of the shell, a material conveying section is arranged at the right end of the rotating shaft, a compression section is arranged in the middle of the rotating shaft, a homogenizing section is arranged at the left end of the rotating shaft, and a screw rod is arranged at the right end of the rotating shaft. A first motor is fixedly connected to the top face of the mounting base, a speed reducer is arranged at the output end of the first motor, the other end of the speed reducer is fixedly connected with one end of a rotating shaft, a feeding port is formed in the top of the shell, a discharging port is formed in the left end of the shell, and a round hole is formed in the outer wall of the discharging port. According to the utility model, a large amount of materials are pushed through the material conveying section, stable material supply is ensured, the materials are extruded and sheared through the compression section, conditions are created for fine processing of the homogenizing section, the materials are in a highly uniform mixing state through the homogenizing section, and stable and consistent quality of homogenized products is ensured.

The application discloses an embedded voltage-stabilized heat-dissipation PCB structure with a thermoelectricity synergic regulation layer and a preparation method thereof. The structure comprises at least one PCB inner layer and a chip power supply pad arranged on the inner layer, and a ring-shaped or C-shaped thermoelectric material pattern (ZT>0.5 at room temperature) is embedded in a region corresponding to the chip power supply pad directly below the inner layer. A first end of the thermoelectric material pattern is electrically connected to a power supply layer, and a second end is electrically connected to a grounding layer or a heat-dissipation through hole. The application utilizes the temperature difference during the operation of a chip to drive the thermoelectric material to generate a reverse electromotive force to inhibit power supply ripple, and simultaneously utilizes the Peltier effect to actively pump heat, so that the inner layer is integrated with voltage stabilization and heat dissipation. The power supply ripple can be reduced by 25% to 42% and the surface temperature of the chip can be reduced by 11 DEG C to 14 DEG C by using the PCB structure. The application directly integrates the thermoelectric function in the PCB inner layer, does not occupy the surface layer area, and is suitable for the packaging substrate of high-performance computing chips.

The utility model provides a movable pressure pump room device for drip irrigation, which comprises a pump room, a water diversion mechanism, a filtering mechanism and a control mechanism, and the water diversion mechanism, the filtering mechanism and the control mechanism are all mounted in the pump room; the water diversion mechanism is connected with the filtering mechanism through a second pipeline; a mixing mechanism is further arranged on an outlet pipeline of the filtering mechanism; according to the utility model, automatic water supply can be realized according to working conditions, an intelligent fertilization function can be realized, hoisting movement and integrated installation are realized by arranging the reinforced base and the hoisting ring at the periphery of the pump room, and remote detection of the operation condition in the pump room is realized through remote signal connection of the control system; and the environment in the pump room and the running state of the unit can be changed in time according to the implementation condition, the maintenance cost and the labor management cost are reduced, and meanwhile the problem that operation is inconvenient in the extreme environment is solved.

The utility model relates to the field of energy preparation and storage, and discloses a device for hydrogen production and hydrogen storage, which comprises a sewage treatment system (7) for purifying produced water from an oil and gas field; the water electrolysis hydrogen production system (9) is used for electrolyzing the purified water from the sewage treatment system (7) to obtain hydrogen; and the underground salt cavern (14) is used for storing hydrogen from the water electrolysis hydrogen production system (9). According to the device, co-production hydrogen production and hydrogen storage of the underground salt cavern and the oil and gas field are achieved, meanwhile, the problem of oil and gas field produced water treatment and the problem of hydrogen source of underground salt cavern hydrogen storage are solved, efficient utilization of water resources is achieved, the output cost after sewage treatment is saved, and the underground salt cavern hydrogen storage bank can be used for emergency peak regulation of the hydrogen market. In the hydrogen using peak period, hydrogen can be rapidly extracted, a hydrogen using notch is filled, and stable supply of hydrogen is guaranteed.

This invention belongs to the field of hard carbon technology, specifically relating to a bamboo-based and lignin-based hard carbon composite material, its preparation method, and its applications. The process involves pretreating raw materials to obtain pretreated material; pretreating the pretreated material with an acidic oxidant to obtain acidic oxidant pretreated material; pre-oxidizing the acidic oxidant pretreated material to obtain pre-oxidized material; pre-carbonizing the pre-oxidized material under a protective atmosphere to obtain pre-carbonized material; pulverizing the pre-carbonized material to obtain pulverized material; acid washing followed by water washing to obtain purified material; soaking the purified material in acid, filtering, and drying to obtain soaked material; mixing the soaked material with a modifier, and high-temperature coating and carbonizing under a protective atmosphere to obtain bamboo-based coated hard carbon or lignin-based coated hard carbon. Mixing the two types of hard carbon and carbon coating yields a bamboo-based and lignin-based hard carbon composite material, which is used in negative electrode sheets and batteries. When applied to batteries, the hard carbon composite material of this invention can improve battery energy density.

The utility model discloses a flue gas circulation boiler with a low-nitrogen burner, which relates to the technical field of flue gas circulation boilers and comprises a boiler body and a burner body connected with the boiler body, a mounting frame is fixedly arranged on the outer wall of the burner body, a protective box is fixedly arranged on the mounting frame, and a fixing block is fixedly arranged on the inner wall of the protective box. A fusion box is rotationally arranged in the middle of the fixing block, a conveying pipe is fixedly arranged at the upper end of the protection box, a rotating assembly for driving the fusion box to rotate is arranged in the protection box, and a gas conveying assembly is arranged in the fusion box. Air and circulating flue gas are fed into the fusion box through the gas inlet pipe, the fusion box is driven to rotate on the fixing block in the protection box through the rotating assembly, centrifugal force is generated in the fusion box, and the air and the circulating flue gas are rotationally fused and located in the middle of the fusion box; and the fusion box is arranged to fuse air and smoke entering the combustor, so that the stability of flames is improved, and combustion is more sufficient.

The invention relates to the technical field of water resource circulation, and discloses a mine ecological restoration water resource recycling device which comprises a collecting box, the collecting box is installed on the mountain surface of a mine, and a pretreatment mechanism is installed at the top of the collecting box and used for conducting primary treatment on rainwater; one end of the pretreatment mechanism is communicated with an anti-evaporation mechanism which is used for manufacturing a closed storage space of rainwater, a flow dividing mechanism is arranged in the middle of the collection box and is used for automatically dividing different types of rainwater, and the output end of the flow dividing mechanism is communicated with a reaction assembly which is used for outputting reactants to react with the rainwater. A determinator in the flow dividing mechanism can comprehensively detect multiple key parameters such as the pH value, the heavy metal ion content and the mineral substance components of rainwater, and accurate judgment of the rainwater type is achieved based on accurate detection data and a preset rainwater type standard parameter range.

The utility model discloses a roof solar water heating system which comprises a flat-plate solar collector, an air source heat pump unit, a heat pump heating circulating water pump, a pipeline system and a heat preservation water tank. The flat-plate solar heat collectors are fixed on a roof foundation through a support, the flat-plate solar heat collectors are arranged in multiple rows and are connected in series through heat collector water pipes, and the two ends of each flat-plate solar heat collector are connected to the heat preservation water tank. The air source heat pump unit and the heat pump heating circulating water pump are connected to the heat preservation water tank through a circulating water pipe. The cold water supply pipe supplements cold water to the heat preservation water tank, the hot water supply pipe conveys hot water in the heat preservation water tank to all water consumption ports, and the hot water return pipe recovers unused hot water to the heat preservation water tank. The solar water heater can solve the problems that the water temperature of the solar water heater rises slowly and is unstable, residual hot water cannot be effectively utilized, and energy is wasted due to electric heating in cloudy and rainy days.