275results about How to "Improve recycling efficiency" patented technology

The present invention relates to a nucleic acid extracting apparatus, and the nucleic acid extracting apparatus can include a pipe-shaped tube having an open outlet at one side thereof, and a hydrogel supporting member that is provided inside the tube and filters impurities excluding an extraction target material.

The invention discloses a compound system for material recovery and particularly relates to a system for recovering materials. The system comprises systems such as a call access platform, a material recovery and trading platform, an information statistics and management platform, a financial service and management platform, a chain operation service platform, a professional logistics platform and a material classification processing terminal, and all system platforms are connected with one another to transmit data and provide services. According to the system, advanced management measures are used, service awareness and service behavior of the material recovery industry are improved in a scientific and standard way, and modern technologies and devices are integrated, so that the efficiency of material recovery is improved.

The present invention relates to a structure and an operation method of a constant-humidity fresh air unit, a heat pump heat recovery constant-humidity fresh air unit. The rectangular unit box (1) is divided into left and right sides or upper and lower sides, with a Intervals and partitions; on the side of the return air passage (A) and exhaust air passage (B), air is supplied from the return air outlet (2) in the room by the return fan (3), and the compressor (4) is connected to the condenser (6) , leading to the air exhaust port (7); on the side of the fresh air channel (C) and the air supply channel (D), from the outdoor fresh air port (8) to the inside, one end of the condensate pump (14) and the condenser on the other side (6) connection, one end is connected to the surface cooler (9), evaporator (10) and second condenser (11) in turn, and the air supply fan (12) is set inward, and the air supply port (13) leads to Indoor; on the clapboard, the air volume automatic regulating valve (5) is set. The invention provides a heat pump heat recovery and humidity balance fresh air unit suitable for temperature and humidity independent control air conditioning system, which has the functions of cooling and dehumidification, heating and humidification, filtering and dust removal, ensuring no condensation on the surface layer of radiation cooling and taking into account health and energy saving.

The invention discloses a brake energy recovery system and method of an electric vehicle. The brake energy recovery system of the electric vehicle comprises an energy conversion unit, an inverting unit, an energy storage unit and an energy storage unit management system, wherein the energy conversion unit is used for converting mechanical energy generated during braking into electrical energy and converting the electrical energy into the mechanical energy for driving a vehicle during driving; the inverting unit is connected with the energy conversion unit and used for inverting between alternating current and direct current; the energy storage unit is used for receiving the electrical energy generated by the energy conversion unit and can provide the electrical energy; the energy storage unit management system is connected between the inverting unit and the energy storage unit and used for controlling charge and discharge of the energy storage unit; and the energy storage unit comprises a super-capacitor energy storage unit and a chemical battery energy storage unit, wherein the super-capacitor energy storage unit is connected with the chemical battery energy storage unit in parallel through the energy storage unit management system. Through the system and method disclosed by the invention, the brake energy recovery efficiency can be improved, and the service life of the battery can be prolonged.

The invention relates to a processing device, in particular to an environment-friendly iron leftover material recycling device for buildings. The environment-friendly iron leftover material recycling device for buildings is high in recycling efficiency, good in effect and easy to operate. In order to the achieve the technical goals, the environment-friendly iron leftover material recycling device for buildings comprises a trolley, a left support, a flame rack, a cleaning tank, a first motor, a processing tank, a steel plate, an electric push rod, a pressing plate, a sliding rail, a spring, a supporting rod, a sliding block, a rack, a third motor, a sector gear, a chain, a heavy pressing block, a flame sprayer, an electric control valve, a right support, a first air cylinder, a second air cylinder, a third air cylinder and an annular electromagnet. The left support, the flame rack, the cleaning tank and the first motor are arranged on the bottom of the trolley sequentially from left to right. The environment-friendly iron leftover material recycling device for buildings achieves the effects of being high in recycling efficiency, good in recycling effect and easy to operate.

The invention provides a method of recycling nitrogen and phosphorus in urine to prepare a slow-release fertilizer, wherein the method includes the steps of: (1) adding bio-charcoal and a soluble magnesium salt into urine, stirring the urine under the pH of 9-11 until a grey-white precipitation, struvite, is generated in the solution and is adhered to the surface of the bio-charcoal to saturate the bio-charcoal; (2) stopping stirring to enable the struvite and saturated bio-charcoal to be fully precipitated, and collecting the precipitation, and (3) drying the collected precipitation and performing granulation to obtain the soil-improving slow-release fertilizer being rich in the nutritional elements of carbon, nitrogen and phosphorus.

The present invention provides new techniques related to magnetically controllable and/or steerable froth for use in separation processes of mineral-bearing ore and bitumen. Apparatus is provided featuring a processor configured to contain a fluidic medium having a material-of-interest and also having a surfactant with magnetic properties so as to cause the formation of a froth layer that contains at least some of the material-of-interest and is magnetically responsive; and a magnetic field generator configured to generate a magnetic field and provide non-mechanical mixing and steering/driving of the froth layer in the processor. The material-of-interest may be mineral-bearing ore particles or bitumen. The processor includes a flotation tank, a primary separation vessel (PSV), or a pipe, including a tailings pipeline. The pipe has a non-magnetic pipe section, and the magnetic field generator includes a magnetic coil arranged in relation to non-magnetic pipe section to generate the magnetic field and provide the non-mechanical mixing and steering/driving of the froth layer in the pipe.

The method of recovering waste polystyrene foam plastic includes dissolving waste polystyrene foam plastic with orange oil, adding alcohols, ethers or other precipitant to precipitate polystyrene, filtering to obtain polystyrene, and final adding assistant to separate solvent from the precipitant and distillation to separate assistant from the precipitant. The recovered polystyrene reaches the performance standard and may be used in producing new polystyrene foam. The method has simple technological process, uses non-toxic solvent, and has no secondary pollution, reuse of the reagent, recovering rate up to 95 % and low cost.

The invention discloses a power regulation method and device for an electric automobile and an electric automobile. The method includes: obtaining the percentage of the remaining electric quantity of a power battery system; according to percentage intervals divided in advance, determining the percentage interval to which the percentage of the remaining electric quantity belongs; and according to the percentage interval to which the percentage of the remaining electric quantity belongs, regulating the energy recovery power of an energy recovery system and/or the generated power of a range extender system. The power regulation method for the electric automobile solves the technical problem that shortened service life of a power battery system which is caused by frequent large-current charging of a range extender system to the power battery system.

The invention discloses a diesel generator cogeneration device based on an ORC (organic Rankine cycle) system. The diesel generator cogeneration device comprises an ORC refrigerant cycle system, an engine jacket water cycle system, an engine tail gas system, a pressurized air system and an external cooling water system. The diesel generator cogeneration device disclosed by the invention has the most outstanding feature that after the whole generation device normally runs, as a water tank and an intercooler of an engine do not need to work, the power output, to a fan, of a diesel generator can be directly cut off, and therefore, net generation externally output is greatly increased. The diesel generator cogeneration device disclosed by the invention has another outstanding feature that the heat of the cylinder wall of the engine and the tail gas of the engine is fully absorbed for a carrier by utilizing engine jacket water, and therefore, the problem that the local high-temperature failure of refrigerant is brought by the fact that heat exchange is directly performed between the ORC refrigerant and high-temperature exhaust gas is avoided. All components of the system are effectively controlled, and the waste heat of the engine is recycled, and therefore, the generating capacity of the unit fuel consumption of the engine is improved, and the return on investment cycle of the generator is shortened.

The invention discloses a method for deep separation of vanadium and molybdenum, which comprises three steps of presetting of the pH value of a solution, adjustment of the ion state and resin ion exchange separation analysis. Firstly, a persulfate solution containing vanadium and molybdenum is adjusted to reach the proper value by using sulfuric acid, the oxidation reduction potential of the solution is adjusted through adding reducing agent and oxidizing agent, the valence states and ionic conditions of vanadium and molybdenum are adjusted, vanadium is reduced into V (IV) from V (V), and exists in the form of VO<2+>, molybdenum exists in the form of sexavalence anion, then obtained solution continuously passes through exchange columns of the strong-base anion exchange resin, the exchange speed is controlled as per the contact time of 20-30 minutes, the adsorption effect is adjusted according to the concentration of Mo of the effluent, and the loaded resin is recycled after being analyzed. The method has the advantages that through changing the existing valence states of vanadium and molybdenum, vanadium and molybdenum exist in different hydrated ion forms and through selective adsorption of the resin, the deep separation of vanadium and molybdenum can be realized.

The invention discloses a reinforcement mode based high-performance fiber reinforced resin based composite material recovery method. The method is characterized in that the reinforcement mode comprises reinforcements before and in a supercritical reaction. The method which adopting the reinforcement mode greatly reduces the energy consumption in the reaction process, improves the recovery efficiency, and reduces the recovery treatment cost of a high-performance fiber reinforced resin based composite material; the decomposition rate of a resin matrix is greater than 95%, and the decomposed resin matrix can be reused as chemical engineering raw material; and the loss of the mechanical performances of high-performance fibers recovered in the invention is less than 5%, there is almost no residual on the surface, the recovered high-performance fibers can be reused for producing the composite material, and the resource properties are high.

A hydraulic type energy recovery system for potential energy of a boom of an excavator comprises a variable motor, two variable pumps, an energy accumulator, a control valve, an ECU, a pressure sensor, a revolution speed transducer, a hydraulic cylinder, an oil tank and an engine. Aiming at solving the problems that a great deal of potential energy of a boom of an existing hydraulic excavator under the working condition of severe change is wasted, a hydraulic type energy recovery system is arranged in parallel on the basis of not changing a hydraulic system and the operation performance of the existing excavator; the hydraulic type energy recovery system can recover the potential energy generated when the boom is released downwards, achieve flow regeneration of the boom in order to reduce oil consumption of the hydraulic excavator, and achieve the purpose of saving energy and reducing consumption.

The invention discloses an efficient energy-saving large-air-quantity low-concentration organic waste gas recovery and treatment device and method. The recovery and treatment device comprises a pretreatment system and an adsorption and purification device, the output end of the pretreatment system is connected with a waste gas inlet of the adsorption and purification device through an adsorption and purification fan, and the adsorption and purification device is an adsorption and purification fixed bed or a zeolite rotary wheel adsorption and purification system. A recovery device further comprises a first heat exchanger, a first cooler, an adsorption recovery bed, a condenser, a layering tank, a solvent recovery tank, a heater, a first dried filter, a dehumidifying fan and a cooling fan. The recovery and treatment method includes the steps of firstly, pretreatment, secondly, adsorption and purification, thirdly, adsorption and concentration, fourthly, cooling and adsorption and fifthly, adsorption and recovery. By means of multi-stage reuse of heat and multi-stage adsorption of organic waste gas, the effects of reducing energy consumption and improving recovery efficiency are achieved, the device and method are particularly suitable for large-air-quantity low-concentration organic waste gas recovery and treatment, the aim of clean production is achieved, recycling of resources are achieved, and environment protection is achieved while energy is saved and emission is reduced.

The invention discloses a separation settling tank and belongs to the technical field of separation equipment. The separation settling tank comprises a separation tank body, a collection device arranged on the lower portion of the separation tank body and a support used for supporting the separation tank body and the collection device. The collection device communicates with the interior of the separation tank body. One end of the separation tank body is provided with a feed port. The other end of the separation tank body is provided with a storage cavity. The separation tank body is internally provided with a material separation assembly used for separating a plastic mixture and a material shifting assembly used for shifting floating materials. The material separation assembly gets closeto the feed port. The material shifting assembly gets close to the storage cavity. The separation tank body is further provided with a concentration regulation mechanism used for controlling the concentration of a separating medium in the separation tank body. The separation settling tank can automatically separate and recover the floating materials and settling materials, automatically regulationthe concentration of the separating medium and improve the recovery efficiency and quality of plastic products.

The invention provides a waste water treating method in an aluminum section bar oxidizing technology, wherein the method comprises the treatment steps of waste water containing acids, alkalis and heavy metals: coagulating, deposing, filtrating, ultrafiltrating and nanofiltrating waste water containing no heavy metals, acids and alkalis, directly reusing the reclaimed water after treatment, and integrally utilizing the sludge generated in a production line after dehydrated; and (2) individually treating the waste water containing heavy metals by a recovery device, directly backflowing the treated and recovered heavy metals into a coloring tank and a hole sealing tank, and directly supplementing the fresh water obtained after treatment into a rinsing bath. The waste water treatment method of the invention has advantages of water cyclic utilization, small waste water discharge, integration utilization of sludge, no dangerous waste generation, etc.

The invention discloses a method for separating and recycling each component material in waste printed circuit boards by using near-critical water. According to the method, the near-critical water is taken as a reaction medium, and the waste printed circuit boards are separated and recycled by regulating and controlling the temperature and the reaction time to realize complete separation of a copper foil, glass fiber cloth and a resin substrate under the existence of different catalysts, wherein the recycled copper coil and glass fiber cloth can be further reused directly; the resin substrate exists in the form of decomposed oil; major components of the resin substrate are phenol and phenol derivatives which can be further purified into chemical raw materials for application. Thus, the method plays a role in promoting the recycling of the waste printed circuit boards, is an environmentally-friendly, easy-to-operate and efficient technology, and is very wide in application prospect.

The invention discloses a multi-energy complementally driven dehumidification air-conditioning system which comprises a room internal partition wall, a room wall, a hollow fiber membrane, an indoor air return port, an indoor circulating fan, a wind driven generator, a storage battery, a solar thermal collector, a heat exchanger, an ultrasonic atomizer, an ultrasonic generator, a solution regenerator, an energy storage reservoir, a solution collection reservoir, a solution circulating pump, a liquid return pump and a plurality of valves. The solution regenerator is composed of an atomizing chamber, an air inlet, a solution baffle, a demister and an exhaust fan. The multi-energy complementally driven dehumidification air-conditioning system uses solar energy as the regeneration thermal source of a dehumidification solution, improves dehumidification solution regeneration efficiency by aid of the ultrasonic atomization effect, solves the problem of the solution dehumidification system that the air contains liquid by aid of the hollow fiber reverse osmosis membrane, is provided with electricity through wind power generation, and achieves diversification of system driving energy. The multi-energy complementally driven dehumidification air-conditioning system can meet architectural indoor dehumidification requirements in high-humidity seasons such as the spring and the summer, can supply heat to the buildings in summer, is especially suitable for being used in moist areas with cold winter and hot summer, and has remarkable social benefit and economic benefit.

The invention discloses an apparatus for recovering hydrogen fluoride from hydrofluoric acid. The main body structure of the apparatus comprises a cylinder shell (5), a liner (6), a stirrer (7), stirring blades (9) and a cylinder cover (10), the cylinder shell (5) is cylindrical in shape, the bottom of the cylinder shell (5) is a spherical arm surface, the liner (6) is arranged at the lower portion of the cylinder shell (5), the cylinder cover (10) is fixed on the cylinder shell (5) in a seal manner, the cylinder cover (10) is fixedly provided with a frame (3), the support (3) is fixedly provided with a motor and speed reducer (1), the lower portion of the motor and the speed reducer (1) is coaxially provided with a shaft coupling (2), the stirrer (7) is symmetrically arranged at the tail end of the shaft coupling (2), and a thermometer sleeve (10) goes through a through hole and goes deep to the lower portion of the cylinder shell (5). The apparatus has the advantages of simple operation, stable and reliable running, high hydrogen fluoride recovery efficiency, high product purity, and repeated use of an absorbent.

The invention discloses an extensible regenerative brake control system. The system includes an electric-control regenerative brake module, a hydraulic regenerative brake module, a feedback torque actuator, a regenerative brake energy recovery model and a finished automobile dynamic state part, wherein the regenerative brake energy recovery model comprises a state observation end and a control end, the finished automobile dynamic state part, the state observation end, a longitudinal force control distribution part, the electric-control regenerative brake module and an air bag restraint system are compatible to and have reservation for extensible interfaces, and therefore control is achieved on the premise of ensuring that an original finished automobile framework is maintained to the greatest extent; the extensible regenerative brake control system is applicable to not only two-wheel/four-wheel driving systems but hydraulic pressure torque/feedback torque decoupling and non-decoupling regenerative brake systems; it is ensured that drivers can have a feeling similar to the feeling when using regenerative brake pedals of original vehicles, and therefore the vehicles can be prevented from losing balance to the greatest extent, and the recovery efficiency is increased; by using the longitudinal force control distribution part to feed back torque limiting values safely, the safety of the vehicles can be effectively ensured.

The invention discloses a method for recycling ammonia nitrogen, phosphorus and volatile fatty acid in livestock-poultry excrement hydrolysate by two-stage bipolar membrane electrodialysis; the method comprises: pretreating livestock-poultry excrement hydrolysate, adding into a bipolar membrane electrodialytic saline chamber, and extracting ions contained in the hydrolysate. The reaction process is divided into a front phase and a rear phase according to voltage changes, namely a strong electrolyte removal phase and a weak electrolyte removal phase; finally, ammonia nitrogen, chlorine ions and sulfates are removed in the first phase equivalently, while phosphates and weak acids such as VFAs (volatile fatty acids) are removed in the second phase. The produced strong acid solution is subjected to reflow for adjusting pH of the hydrolysate during pretreatment; when pH is 5, about 90% of solid phosphorus is released, and the VFAs separation efficiency is improved. The two-phase separation method according to the invention enables ions in the excrement hydrolysate to be removed and recycled in class-based form, loss of ion diffusion between adjacent compartments in late reaction is decreased, and product recycling rate is increased.

The invention discloses a method and a system for solving changes of exhaust gas recirculation (EGR) characteristic curves. The method comprises the following steps: (10) extracting stored EGR characteristic curves, (20) sequentially outputting and obtaining EGR actual opening degree according to control signals in the EGR characteristic curves corresponding to the control signals, and (30) updating the EGR characteristic curves according to the EGR actual opening degree. The method and the system enable updated EGR characteristic curves to meet the existing working conditions of the EGR through testing and updating, can control the EGR actual opening degree according to the updated EGR characteristic curves in the actual operating process enable the EGR actual opening degree and the opening degree required by the EGR to be always constant, thereby ensuring good exhaust gas recirculation efficiency and eliminating the negative influence brought by the changes of the EGR characteristic curves.

The invention relates to a cut tobacco recycling device for waste cigarettes. The cut tobacco recycling device comprises a cigarette straightening device, a cigarette sectioning device, a cut tobacco-sundry separating device and a cut tobacco purifying device. An operating method comprises the following steps: separating incoming waste cigarettes from cut tobacco chips in the cigarette straightening device, straightening the cigarettes and feeding the straightened cigarettes into the cigarette sectioning device, performing positioning rolling and complete sectioning in the cigarette sectioningdevice, feeding the cut tobacco, filter tips and cigarette paper into the tobacco-sundry separating device, performing preliminary separation on the cut tobacco and large-size sundries, feeding the separated cut tobacco into the cut tobacco purifying device, and further separating fine paper scraps and other sundries in the cut tobacco. The cut tobacco recycling device for waste cigarettes disclosed by the invention has the advantages of being high in degree of mechanization, high in cut tobacco recovery efficiency, complete in separation, applicable to multiple cigarettes, small in occupiedspace and the like.

The invention provides a method for resource recycling of vanadium-titanium-tungsten series denitration catalysts and water recycling use. The method for resource recycling of the vanadium-titanium-tungsten series denitration catalysts and water recycling use comprises the step that after alkali liquid titanium-removing reaction, acid liquid impurity-removing, ammonium sulfate vanadium precipitation and sulfuric acid tungsten precipitation reaction are conducted on catalyst powder and a filtered liquid acquired is electrolyzed, sulfuric acid and alkaline liquid are recycled and utilized. The invention further discloses a system applicable to the method. The system comprises a preprocessing unit, an alkaline leaching unit, a pH adjustment unit, an ammonium sulfate vanadium precipitation unit, a sulfuric acid tungsten precipitation unit, a chemical precipitation ammonium-removing unit and a sodium sulfate electrolysis unit which are sequentially connected. The acid liquor outlet of the sodium sulfate electrolysis unit is connected with the pH adjustment unit and the sulfuric acid tungsten precipitation unit. The alkaline liquid outlet of the sodium sulfate electrolysis unit is connected with the alkaline leaching unit and the chemical precipitation ammonium-removing unit. With a resource recycling technology of the denitration catalysts and a saliferous waste water processing recycling technology combined, saliferous waste water generated in the production process can be utilized cyclically, and generation of waste water is reduced so that the resource recycling process of the catalysts is more environmentally-friendly.

The invention discloses a method for treating rutile titanium dioxide waste water. The method comprises the following three steps of: (1) mixing acid waste water and alkaline waste water, stirring, then naturally depositing to obtain a supernatant and bottom deposits, and controlling mixing temperature to 50-60 DEG C, wherein the pH value of a solution is 7-8 after mixing; (2) adding polyacrylamide to the supernatant obtained in the step (1) according to the concentration ratio of 5-10ppm, stirring, and depositing; (3) carrying out aeration, filter pressing and drying on the lower deposits obtained in the step (1) to obtain iron oxide black, wherein filter liquor obtained through the filter pressing can be directly discharged. The method disclosed by the invention can be used for recovering insoluble titanium from the rutile titanium dioxide waste water as much as possible and reducing the discharge amount of the rutile titanium dioxide waste water, thereby recycling the water resources and further creating great economic benefit and environmental protection benefit to enterprises.

The invention discloses a curling wire packing machine. In a commonly-used aluminum wire recycling process, a container with an extremely huge volume is placed at the chip removal position of a machine tool, aluminum wires are fed into the container through equipment such as a material guiding channel, and the aluminum wires need to be cleaned at the position without aluminum wires aside at regular times by specialized workers, so that the production efficiency is low. The curling wire packing machine is characterized in that an aluminum wire recycling cavity is arranged at the upper part of a rack, an aluminum wire guiding component communicated with the aluminum wire recycling cavity is arranged at the front end of the aluminum wire recycling cavity, and a curling wire base plate is arranged on the base plate of the aluminum wire recycling cavity; a roll-packing rod advancing and retreating guiding assembly, a roll-packing rod advancing and retreating driving assembly and an automatic roll-packing assembly are arranged between the curling wire base plate and the lower base plate of the rack, and a roll-packing compressing assembly for compressing aluminum wire rolls after roll-packing is arranged on one side wall of the aluminum wire recycling cavity. The aluminum wires generated by turning can be recycled and packed, so that the requirement for saving much space can be realized, the cost is lowered while the human input is reduced, and the recycling efficiency of waste materials is improved.

The invention discloses a method for recovering indium from waste LCDs. The method comprises the following steps: waste LCD panels containing indium tin oxide are dismounted, crushed and then dissolved in an acid solution, and insoluble substances are removed by filtration; the filtrate obtained in the first step is adjusted to an appropriate pH value and then stands for precipitation, and precipitates are removed by filtration; trivalent indium ions in the filtrate obtained in the second step are selectively adsorbed by aminophosphonic acid chelate resin, and then desorbed by a hydrochloric acid solution to obtain a solution containing trivalent indium ions. The method is simple to operate and friendly to the environment, has a good indium separation effect and satisfies mass production.

The invention provides a vibration energy recovery system which comprises a piston damping device, a hydraulic-control two-position four-way reversing valve communicated with the piston damping device and an energy storage and power generation device communicated with the hydraulic-control two-position four-way reversing valve. The piston damping device comprises a cylinder body, a piston arranged in the cylinder body and a connecting rod connected with the piston. The piston divides the cylinder body into a first cavity and a second cavity. When the connecting rod drives the piston to move towards the first cavity, the first cavity and the energy storage and power generation device are in a one-way communicated state. When the connecting rod drives the piston to move towards the second cavity, the second cavity and the energy storage and power generation device are in a one-way communicated state. The invention further provides a wheel suspension system with the vibration energy recovery system. By means of the vibration energy recovery system, the vibration energy recovery efficiency and sensitivity can be improved.

The invention discloses an atom transfer radical polymerization method based on a liquid/liquid two-phase catalysis system. The method comprises the following steps: mixing a monomer, an initiator, a catalyst, a ligand and a reducing agent respectively dissolved in water and an organic solvent, a polymerization is carried out for 12-60 hours under temperature of 60-90 DEG C and rotating speed of 1500-2000rpm; separating two phases after reaction is completed, the organic phase is dumped into methanol for deposition, pumping filtration and drying to obtain a required polymer; the monomer, the initiator and the reducing agent are added in the water phase, and then next polymerization is carried out. According to the invention, under existence of limit oxygen, any modification on the ligand is not required, high efficiency separation and recovery of ATRP and a transition-metal catalyst can be successfully realized by stirring mass transfer of diffusion in a simple mode, operation is simple, designability is strong, cost is low, labor saving and time saving are realized, and the invention provides a novel method for removing an ATRP catalyst in a simpleness, economy, high efficiency and environmental protection mode.

The invention relates to an energy-regenerative suspension for a car and a control method thereof, pertaining to the research field of car suspensions. The suspension comprises a hydraulic mechanism, a driving device, a rotary motor and a battery storage mechanism. The driving device helps simplify the system structure. Power of two motors of the hydraulic mechanism is integrated to a same output end. Only one motor is used so that cost is lowered. An energy-regenerative hydraulic pipeline is used for interconnecting upper and lower cavities of two hydraulic cylinders reversely so that operation stability is improved without affecting smoothness of car driving. Energy of reciprocating oil liquid can be recovered and converted to be electric energy for electric equipment. The energy-regenerative suspension for the car and the control method thereof have following beneficial effects: the car is easily operated; vibration energy of the suspension is recovered; and the suspension has a broad usage prospect.