45results about How to "Zero emission" patented technology

The invention discloses a light-weight energy-absorbing polyurethane power battery pouring sealant and a preparation method and application thereof.The preparation method comprises the steps that liquid MDI and polytetrahydrofuran glycol serve as raw materials to prepare an isocyanate-terminated polyurethane prepolymer; the polyurethane power battery pouring sealant is prepared by reacting 1, 4-butanediol through adjusting a chain extension coefficient to generate microcellular foaming polyurethane, and a microcellular structure is formed through the reaction, so that the related performance requirements of light weight, energy absorption and the like of the power battery pouring sealant are met; the polyurethane pouring sealant prepared by the invention has the advantages of light weight, and excellent energy absorption and vibration reduction performance, mechanical property, thermal stability and bonding performance; and the preparation process is simple and controllable, environment-friendly and reliable, the cost is low, the stability and safety of the power battery can be improved, the development of new energy automobiles is promoted, and the environment-friendly requirement is met.

The invention discloses a fuel cell parameter identification method based on data driving, and the method employs an improved dung beetle optimization (IDBO) algorithm to identify parameters delta 1, delta 2, delta 3, delta 4, Rc, b and theta, obtains optimal model parameters, improves the parameter identification precision of a fuel cell model, and builds a more accurate fuel cell model. The improved dung beetle optimization algorithm is improved as follows: a Cosine-Logistic-Tent composite chaotic mapping strategy is introduced in population initialization, and the uniformity and the ergodicity of the initial position of a dung beetle population are improved; a subtraction average optimizer is adopted to update the position of the dung beetle individual rolling ball, and the development and exploration ability of the algorithm is balanced; an adaptive t distribution disturbance strategy and a greedy strategy are introduced in a dung beetle group foraging stage, so that the global search capability of the algorithm is enhanced, and the calculation time is shortened.

The invention relates to the technical field of operation machinery, and discloses a crane. The crane comprises a traveling driving system which comprises a driving motor and a traveling mechanism, and the driving motor is connected with the traveling mechanism; the fuel cell system comprises a cell stack, a hydrogen supply mechanism and an air supply mechanism, and the cell stack is connected with the hydrogen supply mechanism and the air supply mechanism; the operation system comprises a winch motor, a winch box, a rotation assembly, a rotation motor, an oil pump motor and an operation hydraulic assembly, the winch motor is connected with the winch box, the rotation motor is connected with the rotation assembly, and the oil pump motor is connected with the operation hydraulic assembly; and the control system is electrically connected with the traveling driving system, the fuel cell system and the operation system. The fuel cell system serves as a power source to provide power for the crane, water and heat are mainly generated in the operation process of a fuel cell, harmful tail gas emission is avoided, fuel can be rapidly supplemented through a hydrogen refueling station, and zero emission, high efficiency and high energy supplementing speed are achieved.

The utility model relates to the technical field of concrete mixing plants, in particular to a sewage zero-discharge treatment system for a concrete mixing plant. The system comprises a sand-stone separation loop, a slurry treatment loop and a zero-emission treatment loop, wherein the sand-stone separation loop comprises a discharge chute, a sand-stone separator and a grit chamber which are arranged in sequence; a cyclone is arranged in the discharge chute; the slurry treatment loop comprises a stirring tank and a finished product slurry tank which are arranged in sequence; one end of the stirring tank is connected with a clean water tank through a water pump and connected with a discharge chute through a cyclone, and the other end of the stirring tank is connected with a finished product slurry tank; the finished product slurry tank is connected with a sewage scale through a pipeline, and a concentration tester device is arranged above the finished product slurry tank; the zero-emission treatment loop comprises a control cabinet; and the control cabinet is connected with the sand-stone separation loop and the slurry treatment loop respectively. According to the utility model, the problems that various wastes and mortar water on the site of the mixing plant exceed the standard and pollute the environment are solved, and controllable sewage, adjustable concentration and resource recycling are realized.

The invention discloses a process for freezing crystallization treatment of desulfurization wastewater by using flue gas waste heat. Comprising a flue gas heat exchanger (1), an ammonia-water absorption heat pump (3), an electric heat pump (15), a first-stage pre-cooling unit (9), a second-stage pre-cooling unit (11), a third-stage pre-cooling unit (13), an ice maker (5), an ice-water separator (7) and an evaporator (10). The flue gas heat exchanger (1) is respectively connected with the ammonia-water absorption heat pump (3) and the electric heat pump (15); the ammonia-water absorption heat pump (3) is respectively connected with the ice maker (5) and the three-stage pre-cooling unit (13); the electric heating pump (15) is connected with the evaporator (10); the first-stage pre-cooling unit (9) is connected with the second-stage pre-cooling unit (11); the second-stage pre-cooling unit (11) is connected with the third-stage pre-cooling unit (13); the third-stage pre-cooling unit (13) is connected with the ice maker (5); the ice maker (5) is connected with the ice-water separator (7); the ice-water separator (7) is respectively connected with the secondary precooling unit (11) and the primary precooling unit (9); and the secondary precooling unit (11) is connected with the evaporator (10). Aiming at waste heat utilization of industrial flue gas, low-temperature waste heat at an inlet of a sintering flue gas chimney is utilized, waste heat flue gas is used as a driving heat source through a heat pump, refrigeration and heat supply are used for a'freezing crystallization and evaporative crystallization 'process of desulfurization waste water, and efficient utilization of industrial low-temperature flue gas waste heat is achieved.

The invention belongs to the technical field of tunnel construction, and particularly relates to tunnel new energy operation equipment and an energy consumption control method thereof.The tunnel new energy operation equipment comprises a crawler chassis, the crawler chassis is driven by a motor, an electric telescopic arm is fixedly installed on the surface of the crawler chassis, and an external cable is slidably connected to the inner wall of the electric telescopic arm; the external cable is used for being connected with a power grid to provide electric energy for operation equipment. According to the tunnel new energy operation equipment and the energy consumption control method thereof, by arranging the energy storage driving control mechanism and the rotary conductive mechanism, seamless switching and 360-degree continuous rotation operation of the equipment in a power grid direct supply mode and a battery power supply mode are achieved when the equipment is used, and waste gas pollution in a tunnel is fundamentally eliminated. The system has the characteristics of zero emission, low noise and high energy utilization rate, the direct electric charge and ventilation energy consumption are remarkably reduced, the comprehensive energy consumption is reduced, and a brand new green and efficient equipment solution is provided for tunnel construction.

The invention belongs to the field of air temperature regulation, and particularly relates to a connectable multi-channel air temperature regulation device and application thereof.The connectable multi-channel air temperature regulation device comprises a channel main machine, the two ends of the channel main machine are in sealed communication with a first connecting piece and a second connecting piece through sealing rings, and the channel main machine comprises a main machine inner pipe and a main machine outer pipe; the main machine outer pipe is arranged on the outer side of the main machine inner pipe in a sleeving mode, the main machine outer pipe is of a hollow ring structure, and a plurality of temperature conduction supporting pieces are evenly distributed between the inner wall of an outer ring of the main machine outer pipe and the outer wall of an inner ring of the main machine outer pipe to form a plurality of temperature conduction channels I; a plurality of semiconductor plates are arranged on the outer side of the host inner tube, are spaced by thermal insulation strips, and are attached to the inner wall of the inner ring of the host outer tube; a plurality of temperature conducting spacers are evenly distributed on the inner wall of the main machine inner pipe, a plurality of temperature conducting channels II are formed among the temperature conducting spacers, and the device can achieve simultaneous refrigeration and heating based on the characteristic that one side of a semiconductor material is used for refrigeration and the other side of the semiconductor material is used for heating, so that the use requirements of air heating or cooling in different application scenes are met at the same time.

The magnetomotive force strengthening device comprises fixing frames, an output shaft, a rotor, an outer stator, a bearing, a machine shell and a machine cover, the machine cover is installed at one end of the machine shell, at least one fixing frame is fixed in the machine shell, the two ends of the output shaft penetrate through the fixing frames and the machine cover, the bearing is installed between the output shaft and the fixing frames, the rotor is installed in the machine shell and fixed to the output shaft, and the outer stator is installed on the machine cover. A plurality of outer stator magnetic units and a plurality of rotor magnetic units are respectively and uniformly embedded on the opposite circumferential surfaces of the outer stator and the rotor, the support is sleeved on the output shaft, the lower end of the support is fixed on the fixing frame through a screw, the inner stator is fixed on the outer circumference of the support through a positioning key, and the inner stator is fixed on the outer circumference of the support through a screw. An inner stator magnetic unit is embedded on the outer circumference of the inner stator, the inner stator magnetic unit is opposite to the rotor magnetic unit, a circular ring is arranged on the outer circumference of the rotor, a plurality of rotor magnetic units are uniformly embedded on the circumference of the circular ring, the outer side of each rotor magnetic unit is opposite to the outer stator magnetic unit, and the inner side of each rotor magnetic unit is opposite to the inner stator magnetic unit.

The utility model relates to the technical field of low-temperature storage tanks, in particular to a low-temperature storage tank replacement gas recovery system which comprises a low-temperature storage tank, a compressor, a water cooler and a condensate tank. The low-temperature storage tank is connected with a medium gas inlet pipeline, a gas phase outlet in the top of the low-temperature storage tank is sequentially connected with the compressor, the water cooler and the condensate tank through pipelines, the bottom of the condensate tank is connected with a backflow pipeline, a liquid phase medium in the condensate tank returns to the low-temperature storage tank through the backflow pipeline, and the top of the condensate tank is connected with a torch discharging pipeline. And gas in the condensate tank is discharged to the torch system through the torch discharging pipeline. Nitrogen and BOG mixed gas at the top of the low-temperature tank is sucked by starting the BOG gas compressor, medium gas is converted into a liquid phase from a gas phase through operations such as pressure boosting of the compressor, condensation of the water cooler and gas-liquid separation of the condensate tank, all the medium gas is recycled and returned to the low-temperature storage tank, and the nitrogen is still in a gas phase after being compressed and is discharged, so that the low-temperature storage tank is completely recycled. And zero emission of medium gas can be realized.

The utility model discloses a single well pipeline, hydrogen sulfide closed automatic monitoring device of oil gathering trunk line, including detection casing, the detection casing top sets up linear drive arrangement, the detection casing inside sets up sealing device, sealing device is connected to the output shaft of linear drive arrangement, the detection casing is divided into air cavity, detection cavity by sealing device, the detection casing sets up exhaust port in air cavity, the detection casing sets up gas guide port in detection cavity, the detection casing sets up detection mouth, and the detection mouth is communicated with air cavity or detection cavity under the control of sealing device, and the gas guide port is connected gas -liquid separation collection device. The utility model will collect the gas in the pipeline, measure the hydrogen sulfide content in natural gas, and push the measurement gas back to the original flow after measuring, and the hydrogen sulfide gas that escapes a little is absorbed through the hydrogen sulfide removing agent, which fundamentally eliminates the environmental air pollution.

The utility model discloses a mud storage device and tunnel construction equipment, which comprises a storage container used for storing mud, the storage container is a sealed structure, the lower part or the bottom of the storage container is connected with a mud pipeline, the mud pipeline is respectively connected with a mud discharge pipeline and a mud inlet pipeline, the bottom of the storage container is also connected with a transfer pipeline, and the transfer pipeline is connected with the mud discharge pipeline and the mud inlet pipeline. The transfer pipeline is used for being connected with a slurry storage sewage container; the pneumatic control device is connected to the top of the storage container and used for pressurizing the storage container or providing negative pressure for the storage container; and the pipeline control device is used for respectively controlling the on-off of the slurry discharging pipeline, the on-off of the slurry inlet pipeline and the on-off of the transfer pipeline. According to the device, closed-loop control over mud recovery and utilization is achieved, mud recovery, storage transfer and recycling of construction equipment in the pipe replacement process are rapidly and efficiently completed, and the problem of leakage of mud in the current transfer and storage process is solved.

This invention discloses a sintered NdFeB magnet and its bluing process, relating to the field of magnet corrosion protection technology. The bluing process includes the following steps: dry polishing of the NdFeB black sheet using a composite polishing medium to remove surface oil, dust, and a dense oxide layer, exposing a fresh active substrate and forming a rough interface; the composite polishing medium consists of stone particles, shell particles, and sawdust; and bluing the polished NdFeB black sheet to induce an oxidation reaction on the substrate surface, generating a blue Fe3O4 protective film. This bluing process achieves a magnetic loss repair rate of up to 1.19%, while simultaneously achieving zero chemical emissions, zero wastewater generation, and replacing expensive controlled atmospheres with zero-cost air. It also fundamentally solves the rigid constraints of process connections caused by wet material overprinting, providing a surface protection solution for NdFeB magnets that combines environmental friendliness, high corrosion resistance, magnetic property repair capabilities, and low cost.

The invention discloses a box type three-motor mini-tiller which comprises a chassis which is of a split structure and is provided with a battery box and a motor box. The rack adopts a channel steel design; the three motors independently control advancing and differential steering of the wheels and speed adjustment and directional communication maintenance of the rotary blades respectively. The two wheels are respectively driven by two motors; the wheels are connected in a half-shaft mode, a half shaft is supported through a bearing chamber, and the half shaft is matched with an output shaft of the motor and then matched with wheel hubs to transmit power. The motor is large in starting torque, high in overload capacity and capable of adapting to sudden change of working loads; the speed regulation range is wide, the torque control characteristic is good, the speed is regulated through keys, and the operation is simple; the concentricity of the motor is good, vibration caused by combustion pulse of a crank-link mechanism of a fuel engine and mixed gas in a cylinder is avoided, and vibration of the mini-tiller is greatly reduced; and electric energy is used as a power source, so that no pollution, zero emission and high energy utilization rate are realized.

The present invention discloses a paint mist purification device for a spray booth, comprising an arc-shaped bracket, a box body and two symmetrically arranged bottom plates, and the present invention relates to the technical field of environmental protection equipment. The paint mist purification device for a spray booth adopts the arrangement of an arc-shaped bracket to install the purification device on the bracket, thereby reducing the occupied area and moving the position of the purification device. The purification device can be controlled to move according to the position of the spray painting, thereby improving the absorption effect of the paint mist and reducing the diffusion of the paint mist in the operation workshop. When the purification device is moving, it is divided into two situations: (1) During the spray painting period: the return air fan at the bottom of the box body blows up the sinking paint mist so that more of it is adsorbed on the surface of the industrial product, thereby reducing the waste of paint; (2) When the spray painting is stopped: at this time, the return air fan stops operating, and the suction fan inside the box body starts working to absorb the paint mist floating in the air into the box body for purification, thereby improving the environmental quality of the operation workshop.

The invention discloses a zero discharge system for comprehensive external drainage treatment of a converter station. The zero discharge system comprises an electric drive concentration unit, an electric energy drying unit, a mother liquor tank and a product water tank, the electrically driven concentration unit comprises a filter connected with the mother liquor box, and an outlet of the filter is connected with the reverse osmosis device; a fresh water outlet of the reverse osmosis device is connected with the product water tank, and a concentrated water outlet is connected with the electric energy drying unit; the electric energy drying unit comprises a low-temperature drying device connected with an outlet of the reverse osmosis device, and the low-temperature drying device is connected with a steam outlet of the electric steam generator; the low-temperature drying device is provided with a produced water outlet and a solid salt outlet, and the produced water outlet is communicated with the product water tank. The low-temperature drying device and the reverse osmosis device are combined, the low-temperature drying device evaporates at normal temperature, scale is not prone to being generated, energy consumption is low, operation is stable, operation, maintenance and management are easy, and cost is saved; the reverse osmosis device greatly optimizes the hydrodynamic performance, is strong in anti-pollution capability, can deal with the high hardness problem of the wastewater of the converter station, and can be designed in an integrated manner.

According to the comprehensive utilization system and method for cooperative treatment of the leachate concentrated liquor in the waste incineration plant, the concentrated liquor is pumped to the incineration hearth and the lime slurry preparation system to achieve absorption and utilization, and the concentrated liquor is sprayed back to a garbage pit in emergency. The system comprises a concentrated liquor storage tank, a pump, a regulating valve and a backflow and conveying pipeline, the flow of concentrated liquor is controlled through temperature and liquid level signals, and continuous and stable operation is ensured. According to the invention, the treatment cost is reduced, reliable absorption and zero discharge of the concentrated liquor are realized, the operation is simple and reliable, the problem of pipeline blockage is solved, and the blank of similar technologies is filled.

A process for the production of synthesis gas comprising the steps of: a) combusting methane or natural gas with oxygen and optionally water vapor to produce a flue gas comprising CO2 and H2O according to: [1] CH4 + 2O2-> CO2 + 2H2Ob) cooling the flue gas from step a) by heat exchange with a water stream, thereby vaporizing the water stream; c) condensing and removing moisture in the flue gas in the step b) so as to obtain a mixture consisting essentially of CO2; d) electrolyzing the steam stream in a solid oxide electrolysis cell (SOEC) and separating the steam into oxygen and hydrogen according to the following reaction scheme: [2] H2O (g)-> H2 + 1 / 2O2e) separating and drying the hydrogen f) according to the following scheme, carrying out a reverse water gas shift reaction between CO2 from step c) and H2 from step e): [3] CO2 + H2-> CO + H2O.

The invention discloses a dechlorination system and a dechlorination method for co-disposing washed fly ash in a cement kiln. The air intake device is connected to the kiln tail smoke chamber in the kiln system, the air outlet of the circulating fan is connected to the air outlet of the air intake device and the air inlet of the heat exchanger, and the air outlet of the air intake device is also connected to the air inlet of the lower cyclone separator; the air outlet of the lower cyclone separator is connected to the air inlet of the upper cyclone separator, the ash drop port of the upper cyclone separator is connected to the air inlet of the lower cyclone separator, and the air outlet of the upper cyclone separator is connected to the air inlet of the heat exchanger; the air outlet of the heat exchanger is connected to the air inlet of the cooler, the air outlet of the cooler is connected to the air inlet of the bag dust collector, and the air outlet of the bag dust collector is respectively connected to the air inlet of the induced draft fan and the circulating fan. The dechlorination system and the dechlorination method improve the dechlorination efficiency and achieve zero emission.

The utility model relates to a nickeliferous wastewater zero discharge system which is characterized in that an outlet of a clean water tank is connected with an immersed ultrafiltration tank, an ultrafiltration component is arranged at the bottom of the immersed ultrafiltration tank, a water producing end of the ultrafiltration component is connected with an inlet of an ultrafiltration water producing tank, and an outlet of the ultrafiltration water producing tank is connected with an inlet of a security filter; an outlet of the security filter is connected with an inlet of a first-stage reverse osmosis membrane, a water producing end of the first-stage reverse osmosis membrane is connected with an inlet of a first-stage reverse osmosis fresh water tank, a concentrated solution end of the first-stage reverse osmosis membrane is connected with an inlet of a first-stage reverse osmosis concentrated water tank, and an outlet of the first-stage reverse osmosis concentrated water tank is connected with an inlet of a second-stage reverse osmosis membrane; the water producing end of the second-stage reverse osmosis membrane is connected with the inlet of the first-stage reverse osmosis fresh water tank, the concentrated solution end of the second-stage reverse osmosis membrane is connected with the inlet of the second-stage reverse osmosis concentrated water tank, and the outlet of the second-stage reverse osmosis concentrated water tank is connected with the evaporator. The nickel-containing wastewater is separated through the membrane, the occupied area can be reduced while zero emission is achieved, the treatment cost is saved, and the method has industrial application prospects.

The invention discloses a zero-emission and zero-pollution solution method for tanning sewage, and relates to the technical field of pollution treatment of the tanning sewage. Comprising a water soaking pool, the water soaking pool is connected with a liming and deliming sewage pool, the liming and deliming sewage pool is connected with a pickling and tanning sewage pool, the pickling and tanning sewage pool is connected with a dyeing sewage sedimentation pool, a first water inlet pipe is movably inserted into the water soaking pool, and a water suction pump is arranged in the water soaking pool; a first water outlet pipe is arranged at the output end of the water suction pump in the soaking pool. The key point of the invention is that all sewage in the whole tanning process is collected, treated and recycled in a segmented manner, so that the tanning is not polluted any more, the problems of the traditional and foreign tanning industries are solved, and the tanning industry has zero pollution and zero emission. According to the device, different types of sewage can be subjected to segmented treatment, the situation that the treatment difficulty is increased due to sewage mixing is avoided, and the pollution problem of the sewage can be greatly solved due to the fact that a proper treating agent is matched for segmented treatment of the sewage.

An oil and gas filter device with an external flange, which relates to the field of power transmission technology. The present invention is to solve the problem that the existing ventilation hood will discharge a small amount of oil mist in the gear box mixed with the air while venting the air and relieving the pressure, which brings the risk of environmental pollution. The present invention includes an outer cover shell, a bushing, an upper cover, a first filter screen and a second filter screen. The air inlet end of the outer cover shell is connected to the air outlet end of the box body, the air outlet end of the outer cover shell is fixedly connected to the bushing, the air inlet end of the bushing is fixedly connected to the first filter screen, the outer end of the bushing is fixedly connected to the upper cover, the air inlet end of the upper cover is fixedly connected to the second filter screen, and the air outlet end of the upper cover is provided with a flange. The present invention is used for oil and gas filtration in gear boxes.

This invention discloses a room-temperature self-sustaining vacuum zero-point energy array power generation device, belonging to the fields of quantum clean energy and micro-nano power generation technology. This invention solves the technical problems of traditional vacuum energy power generation, such as low efficiency, the need for vacuum pumps, the requirement for low-temperature superconductivity, energy recirculation, and the inability to output net power. The device consists of a permanently sealed vacuum Casimir trapping array, an asymmetric piezoelectric resonant amplification layer, a unilateral directional magnetic shielding energy-locking layer, and a room-temperature quantum rectification output layer. It utilizes silicon-glass anode bonding to achieve a 30-year long-term high vacuum. Through nano-spacing plates, room-temperature rectification, and a unidirectional energy-locking structure, it stably extracts vacuum zero-point energy and outputs net electrical energy under pump-free, cooling-free, and superconducting conditions. This invention can be mass-produced at the wafer level and can be stacked for expansion. A 1-square-meter module can output 280W to 650W net power. It has advantages such as zero fuel, zero emissions, long lifespan, self-sustainability, and applicability to all scenarios. It can be widely used in household power supply, industrial power, aerospace energy, and distributed power grids, and is a sustainable clean energy system that can be engineered and implemented.

The invention discloses a liquid nitrogen circulation power generation system method. The liquid nitrogen circulation power generation system method comprises a liquid nitrogen storage tank 1, a heat exchanger 2, an efficient power generator 3, a liquid making machine and a compressor 4. The invention relates to a system scheme for generating power through liquid nitrogen circulation, in particular to integrated equipment which gasifies liquid nitrogen through heat exchange to generate high-pressure gas to drive an efficient generator set and converts nitrogen into liquid through a compression or deep freezing method. Each pipeline is provided with a temperature metering device, a pressure metering device, a flow metering device and the like and uploads the data to the control system, the control system adjusts operation parameters of the system according to monitoring data and carries out collection, the collected data are uploaded to a digital cloud, and the purpose of digital operation and maintenance is achieved.

The present application provides a continuous recycling system for fiber reinforced composite materials, comprising: a conveyor belt pyrolysis furnace, wherein the conveyor belt of the conveyor belt pyrolysis furnace is connected to a feeding device, and an air curtain device is provided at the inlet and outlet of the conveyor belt, wherein the air curtain device is used to release superheated steam to generate an air curtain and heat the fiber reinforced composite material; a superheated steam generator, connected to the air curtain device of the conveyor belt pyrolysis furnace; a heat conversion combustion furnace, connected to the cracking gas outlet of the conveyor belt pyrolysis furnace, and used to ignite the cracking gas from the conveyor belt pyrolysis furnace; the heat conversion combustion furnace is also connected to the superheated steam generator; a conveyor belt decarbonization furnace, connected to the conveyor belt pyrolysis furnace. The continuous recycling system for fiber reinforced composite materials provided in the present application saves the cost of fiber recycling, realizes non-damage recycling of fibers, and the recycling process has the characteristics of zero tail gas emission and zero pollution.

The invention discloses a novel ball injection valve, which belongs to the technical field of valves and comprises a valve body assembly, a valve core assembly and a moving mechanism. Through the valve body assembly and the valve element assembly assembled in the valve body assembly, ball throwing operation is completed based on rotation of a ball part in the valve element assembly and cooperative operation of a moving mechanism, in the rotation process of the ball throwing valve, crude oil cannot be brought into a ball storage barrel, and the ball throwing valve has the advantages of being simple in structure, stable in work and not prone to damage. Crude oil can be effectively prevented from being taken out of an oil conveying pipeline, zero contact between the ball storage barrel body and the conveying pipeline is achieved, and zero emission and zero pollution of the crude oil in the ball throwing process are achieved.

This utility model relates to the technical field of pipe casting production equipment, and provides a dual-function system for circulating cooling and waste heat conversion in a pipe casting annealing furnace, comprising: a cooling air inlet circulation system, a hot flue gas exhaust system, a heat exchange system, and a steam conversion system. This utility model meets the process requirements for rapid cooling in the quenching and slow cooling sections of the annealing furnace, and simultaneously converts excess hot flue gas from both sections into hot air and steam for use in other equipment requiring hot air and steam. While meeting process requirements, it significantly saves costs, conserves energy, and reduces consumption, achieving green production.

The invention discloses a method for manufacturing a fermentation bed for cattle breeding, which comprises the following steps: S1, activating a strain, namely mixing and activating the strain and a mixture; s2, laying is conducted, specifically, padding and activated strains are evenly mixed, and laying is conducted according to the preset thickness; s3, raising a bed, placing the raising bed after laying the fermentation bed, slowly heating the fermentation bed, and then putting cattle into the fermentation bed; and S4, later-stage maintenance: in the process of finishing the breeding bed and feeding the cattle into the fermentation bed for breeding, maintaining at set intervals. According to the fermentation bed manufactured through the fermentation bed manufacturing method, ecological cattle raising can be achieved, if the fermentation bed is properly maintained, the growth performance of fattening beef cattle can be remarkably improved, the stress death and culling rate of calves can be reduced, the meat quality can be improved, and the good market price can be obtained. In the south, the reproductive capacity of the reproductive cows can also be remarkably improved.

The invention relates to the technical field of metal surface treatment processes, and discloses a metal plate multi-layer compounding method and a metal plate. The metal plate multi-layer compounding method comprises the following steps that at least two layers of ink are printed on the metal plate in a silk-screen printing mode to form an ink layer, at least two layers of printing ink are stacked, so that the surface of the metal plate has a concave-convex stereoscopic impression; carrying out high-temperature baking on the metal plate, so that the ink layer is completely dried; and transferring a floral pattern layer on the ink layer in a thermal transfer printing manner to form a required floral pattern effect. By adopting the process combination of silk-screen printing and heat transfer printing, the method has the advantages that the metal plate does not need to be heated by a fire gun, zero emission of CO2 is realized, no heavy metal substance is generated, no acid-alkali wastewater is generated, and products with small color difference and uniform texture patterns can be produced in batches.

The invention relates to the technical field of vehicles, in particular to a multi-power-source control method and device of a vehicle, the vehicle, a medium and a program.The method comprises the steps that the current required power of the vehicle and the current state of charge of a power battery are obtained; determining the discharge power of the power battery according to the current charge state of the power battery; and cooperatively controlling at least one output power of a fuel cell, a hydrogen internal combustion engine and a power battery of the vehicle according to the discharge power and the demand power. Therefore, the problems that in the prior art, a single-power-source vehicle is difficult to operate efficiently, and the overall cost of a high-power-level vehicle is high are solved.

The invention discloses a tar residue crushing device and a treatment process, and belongs to the technical field of coking, and the tar residue crushing device comprises a pretreatment part for spraying high-temperature water to tar residues and liquefying and decomposing the tar residues to soften the tar residues; the tar residue crusher is used for receiving the tar residues output by the pretreatment part and crushing the tar residues; and the separation part is used for receiving the tar residue output by the tar residue crusher and dividing the tar residue into solid, liquid and gas. By means of the steps, solid, liquid and gas separation can be conducted on the tar residues, waste is turned into wealth, harmless treatment is achieved, and earnings are increased. Finally, self-digestion, zero emission and no pollution of the tar residue can be realized, so that the target of resource recycling of the coking waste is realized.