96results about How to "Reuse reduces" patented technology

A surgical mask provides a wide range of wearers with a good fit and improved comfort, facilitates proper use of the mask, and reduces or eliminates fogging of eyewear, as compared with typical masks. The mask may include a pair of ties that are joined to the upper, central, and lower parts of either side of the body of the mask with the assistance of restraint members. The mask may also include a sealing member that reduces or eliminates gaps between the wearer's face and the upper part of the mask by forming a seal between the wearer's face and the mask in use. In addition, the mask may include a barrier panel that reduces or prevents the wearer's breath from escaping through the mask and rising to the wearer's eyewear.

A surgical mask provides a wide range of wearers with a good fit and improved comfort, facilitates proper use of the mask, and reduces or eliminates fogging of eyewear, as compared with typical masks. The mask may include a pair of ties that are joined to the upper, central, and lower parts of either side of the body of the mask with the assistance of restraint members. The mask may also include a sealing member that reduces or eliminates gaps between the wearer's face and the upper part of the mask by forming a seal between the wearer's face and the mask in use. In addition, the mask may include a barrier panel that reduces or prevents the wearer's breath from escaping through the mask and rising to the wearer's eyewear.

The invention relates to the technical field of papermaking raw material processing, in particular to a process for preparing recovered pulp with high whiteness and high cleanliness in a papermaking industry. The process comprises the following steps of: selecting and feeding of waste paper raw materials; disintegration; screening purification; first flotation deinking; first concentrated heat dispersion; second flotation deinking; second concentrated heat dispersion; oxidation bleaching; reduction bleaching; and storage in a storage tower. According to the process, 20-30 percent of high-quality office waste paper and 70-80 percent of other low-quality waste paper raw materials are matched, so that the cost of the waste paper raw materials is effectively reduced, and the corporate profit is increased. An advanced rotary drum pulper, a pulping machine and a production line of office waste paper screening purification, flotation deinking, concentrated heat dispersion and pulp bleaching are introduced, and the recovered pulp is prepared through the efficient use of chemicals and an effective production control process. The whiteness of the recovered secondary pulp achieves 90 percent ISO, and the cleanliness is high. The whiteness and the cleanliness of finished culture paper are increased.

The invention discloses a novel enhanced mineral cotton acoustic board, which comprises 100 weight parts of mineral cotton, 1.6 to 1.0 weight part of polyacrylamide, 5 to 9 weight parts of modified starch, 10 to 16 weight parts of attapulgite clay, 0.4 to 0.7 weight part of aluminum sulfate, 0.5 to 0.7 part of emulsified paraffin and 2 to 30 parts of gypsum crystal whisker. The invention also discloses a preparation method for the novel enhanced mineral cotton board. The method comprises the following steps of: preparing, forming, drying and performing surface finishing. In the method, the gypsum crystal whiskers are prepared from desulfurized gypsum with low purity, and the strength of the mineral cotton acoustic board is enhanced by adding the gypsum crystal whiskers. The gypsum crystal whiskers have the advantages of high strength, high toughness, temperature resistance, chemical corrosion resistance and the like; and the gypsum crystal whiskers which are used as fine monocrystals have complete internal structures, and due to highly-ordered atomic arrangement, the gypsum crystal whiskers do not almost have the defects of cavity, impurities, granular interfaces and the like of any ordinary material, and the strength of the gypsum crystal whiskers is close to a crystal theoretical value, namely the strength of an interatomic valence bond.

Disclosed is preparation and application of crop waste cigarette filter additive carrier materials. The carrier materials use crop waste such as crop straw, or corncob, or peanut shells or cane trash as raw materials, the processes of washing, offensive odor removing, drying, smashing and sieving are conducted in sequence, and finally the crop waste cigarette filter additive carrier materials are prepared. After the carrier materials are loaded with cigarette harm reduction agents or flavoring agents directly or chemical modification is conducted, the carrier materials are added into a cigarette filtering rod so that a binary or multielement composite filtering bar can be achieved, and the crop waste cigarette filter additive carrier materials are applied to cigarette filters and have the advantages of reducing harmful ingredients of cigarette smoke, adding fragrance, improving smoking quality and the like. The crop waste cigarette filter additive carrier materials further have the advantages that crop waste materials are provided with porous structures, and the crop waste cigarette filter additive carrier materials are rich in cellulose, hemicellulose, lignin and the like, wide in source, simple in production technology, low in cost, environmentally friendly, capable of facilitating recycling of the waste and the like, thereby being excellent cigarette filter additive carrier materials.

The invention discloses a soil conditioner capable of reducing activity of heavy metal in soil and a preparation method thereof. The soil conditioner is prepared from sulfydryl modified plant straw powder, an inorganic porous material, caustic dross, humic acid mineral powder, a compound microbial fertilizer and a heavy metal chelating agent. According to parts by weight of the sulfydryl modifiedplant straw powder, the inorganic porous material, the caustic dross, the humic acid mineral powder, the compound microbial fertilizer and the heavy metal chelating agent, the sulfydryl modified plantstraw powder is 3 to 7 parts, the inorganic porous material is 15 to 45 parts, the caustic dross is 1 to 5 parts, the humic acid mineral powder is 20 to 40 parts, the compound microbial fertilizer is2 to 8 parts, and the heavy metal chelating agent is 0.5 to 3 parts. The soil conditioner disclosed by the invention can effectively reduce activity of the heavy metal in acidic heavy metal contaminated soil and further has the advantages of low cost, easiness in implementation, greenness and environmental friendliness.

The invention discloses a biomass micro-positive-pressure pneumatic transmission system which comprises a feeding system, a fan, a conveying pipeline system, a discharging system, a tail gas treatment system and an automatic control system, wherein the feeding system comprises a quantitative feeding device, a collecting device, a positive-pressure air sealing device, an accelerator, an air guide pipe and a return air treatment pipeline; the conveying pipeline system comprises a straight pipeline, a connecting flange and a plurality of quick-operating doors distributed on the pipeline as well as a transparent observation window. The biomass micro-positive-pressure pneumatic transmission system has the advantages that smooth feeding with higher concentration ratio can be achieved, the power consumption is low, the service life of the air sealing device is prolonged, the applicability and the pipeline durability of the conveying system are improved, the convenience is provided for pipeline smoothening and repairing, the environmental pollution can be avoided, and the automation level is high.

The invention is a syringe needle Protection Cover, including a Needle Hub to secure the needle base and a side-opening cover with an Axial Slot to protect the needle. The needle is at the center of the needle base, and a Longitudinal Member forms a side-opening cover that integrates with the Needle Hub at one side via a Hinge. The Longitudinal Member opens easily and locks closed securely. When the Protection Cover is in the closed position, it is difficult to force open, thus making it difficult to reuse a needle. The protection cover gives users more than one visual indication that a needle has been used, locks in a closed position with multiple locking structures, and after use, deforms the needle so as to render it non-reusable.

A method for realizing magnetic stripe card transaction by means of IC card is used to read data from IC card or to complete transaction between a terminal integrated with IC card read capacity and a transaction processing system. The method includes the following steps: (1) a cipher key file which stores cipher key information is set in an IC card for use only and can not be read out; (2) during each transaction, the IC card generates a dynamic process cipher key according to a preset method and returns the sensitive information containing magnetic stripe information and encrypted by the process cipher key to a terminal; (3) the terminal organizes transaction request message and transmits the message to a transaction processing subsystem; (4) after receiving the transaction request message, the transaction processing subsystem completes decipherment and processing of the magnetic stripe information and returns transaction processing result to the terminal. With the invention, the magnetic stripe information read out from the IC card every time is encrypted by different process cipher keys; moreover, the invention sets a series of data demands and security mechanisms stored in the IC card, thereby ensuring data storage safety of the IC card and reducing the possibility of data leakage.

The invention discloses a heavy metal adsorbent and a preparation method and application thereof. The heavy metal adsorbent is biological charcoal obtained by air-drying and pyrolyzing cruciferous plants in a grinding mode, wherein the cruciferous plants comprise leaf mustards, radishes, oilseed rape, Chinese cabbages, cabbages, shepherd's purse, wild cabbages and the like. Through tests, it is found that the cruciferous plants contain more sulfhydryl compounds, and the biological charcoal with a sulfydryl group can be obtained after the sulfhydryl compounds are pyrolyzed, can generate adsorbing and chelating effects with heavy metal ions and has the high affinity with positive ions of heavy metals such as Cd, Cu, Mn, Ni and Zn; the waste cruciferous plant bodies such as the Chinese cabbages and the leaf mustards are collected to be air-dried and pyrolyzed to prepare the biological charcoal, therefore, the discharge amount of garbage can be decreased, reutilization of waste resources is achieved, the high heavy metal adsorption capacity is achieved, and wide application prospects in heavy metal-containing water body treatment, heavy metal-contaminated soil remediation and permeable reactive barrier packing are achieved.

The invention provides a single-grading-particle-size steel slag permeable asphalt mixture which is formed by mixing an aggregate, a high-modulus agent and rubber asphalt. The aggregate consists of single-grading-particle-size steel slag and a packing, the particle sizes of the single-grading-particle-size steel slag are 2.36-4.75 mm, 4.75-9.5 mm, 9.5-13.2 mm and 13.2-16 mm respectively, the packing is rock mineral powder, fine steel slag powder, composite cement or pulverized fuel ash, the contents of the groups of the single-grading-particle-size steel slag and the packing in Marshall test pieces are 84.40-86.14% and 7.5% respectively, and the asphalt-aggregate ratio of the steel slag permeable asphalt mixture is designed to be 6.4, 6.7, 7.0 and 7.3 respectively. The single-grading-particle-size steel slag is used for replacing parts or whole of the aggregate, the high-modulus agent and the rubber asphalt are added, the porosity of the prepared steel slag permeable asphalt mixture meets the requirements, and the single-grading-particle-size steel slag permeable asphalt mixture has higher Marshall stability, smaller analysis leakage loss and cantabro flyoff rate.

The invention discloses a method for treating and recycling waste paper making wastewater. The waste paper making wastewater enters a physicochemical treatment unit, crude fiber substances in the wastewater are intercepted by meshes of an inclined screen, and simultaneously fibers are reclaimed; then the wastewater enters an efficient sedimentation tank, a coagulation agent is added in a quick coagulation area of the efficient sedimentation tank, most suspended substances are removed through coagulation and inclined plate sedimentation, and a part of settled sludge reflows to the quick coagulation area; the yielded water of the efficient sedimentation tank flows into a sludge accommodating filter pool, and a part of the yielded water of the sludge accommodating filter pool is recycled; and the rest yielded water of the sludge accommodating filter pool enters a strengthening adsorption section of a biochemical treatment unit, a part of pollutants is adsorbed and absorbed by high-concentration sludge, then the yielded water enters an aerobic biochemical section and the pollutants are degraded by aerobic bacteria, the yielded water enters a sedimentation tank, a part of yielded water after sedimentation is recycled, and the rest processed water is discharged after reaching standards. The method adopts the efficient sedimentation tank to reduce the adding amount of agents and reduce anionic garbage in recycled sewage, and recycles sludge accommodating filtered water and biochemical treatment water twice to improve the recycling rate of the waste paper making wastewater.

The invention relates to a preparation method of formed semicoke for calcium carbide, belonging to a method for producing formed semicoke for calcium carbide. The preparation process comprises the following steps: preparing semicoke into semicoke powder of which the particle size is less than 3 millimeters, and preparing quicklime into lime powder of which the particle size is less than 1 millimeter; weighing the quicklime, and adding excessive water to sufficiently slake the lime; filtering the supernatant, and taking the underlayer slaked lime slurry, namely a binding agent; weighing the semicoke powder and the binding agent (the weight percents of the semicoke powder and the binding agent are respectively 70-80% and 20-30%), pouring the binding agent into the semicoke powder, sufficiently stirring, and evenly mixing; pressing the mixture with a roll-type forming machine to obtain spheroidal formed semicoke; and placing the pressed formed semicoke in a briquette carbonization tank, continuously introducing CO2 preheated to 40 DEG C through a heat exchanger into the carbonization tank via the tank bottom for about 7 hours, and determining the dropping strength of the formed semicoke. According to the invention, the reutilization of the semicoke powder is realized, a powder coal forming technology and calcium carbide production are combined, the calcium carbide production process is simplified, and the production cost is lowered.

The invention discloses a system and a method for controlling non-point source pollution and recycling nitrogen and phosphorus of paddy fields, belonging to the technical field of pollution prevention. The system comprises a water collection unit, a grid filtering unit, a buffer unit, a nitrogen-phosphorus adsorption unit, a flow on-off control unit, an artificial wetland, a natural water storage facility and a water conservancy recharge unit. When water is drained from the paddy fields, water sequentially flows through each unit, phosphorus and nitrogen are adsorbed through nitrogen-phosphorus adsorption substances and are absorbed by the artificial wetland, so that the contents of nitrogen-phosphorus substances are further reduced, and the purpose of reducing the eutrophication of a water body is achieved; when the paddy fields are irrigated, water enters irrigation channels through the adsorption unit, absorbed substances nitrogen-phosphorus substances are released into irrigation water through desorption and are reused in the paddy fields. Compared with the prior art, the system and the method have the advantages that when the water body pollution is maximally controlled, the recycling of the nitrogen-phosphorus substances and the harmony between the facility and the nature are realized, and the purposes of controlling the pollution and saving the fertilizer applying cost are achieved.

A decoder 2 decodes a first compressed digital video bitstream whilst preserving the compression parameters thereof, the compression parameters including a first buffer occupancy value VBV—1 representing the occupancy by the said first bitstream of a buffer of the decoder. A signal processor 40 processes the decompressed bitstream. An encoder 6 compresses the processed bitstream to produce a second compressed bitstream having a target bit rate, optionally with reuse of the said compression parameters of the first bitstream, the second bitstream having a second occupancy value VBV—2 representing the occupancy of a downstream decoder buffer by the said second bitstream. The encoder controls (i) the target bit rate of the second bitstream and (ii) the recoding of the second bitstream to meet the said target bit rate, the target bit rate being varied in dependence on one or both of (a) VBV—2 and (b) the difference between VBV—1 and VBV—2, and the degree of reuse of the said preserved parameters being varied in dependence on one or both of (a) the degree to which VBV—2 tends towards underflow and (b) the degree to which VBV—1 differs from VBV—2 tending towards underflow.In addition, stuffing bits are added to the bitstream if VBV—2 is tending towards overflow of the downstream buffer and / or VBV—2 differs from VBV—1 tending towards overflow.

A sewage treating agent is prepared from, by weight, 10-15 parts of calcium bicarbonate, 10-20 parts of polyacrylamide, 20-40 parts of aluminum polychlorid, 3-7 parts of carbon black, 2-10 parts of activated carbon, 3-7 parts of magnetite, 5-15 parts of iron slags, 20-30 parts of diatom ooze, 30-50 parts of bentonite and 10-15 parts of flyash .The invention further discloses a preparing method of the sewage treating agent, and the preparing method mainly includes the steps of raw material smashing, airing, mixing, pelleting and the like .The sewage treating agent can separate sewage into sediment and clean water, and water quality is good after the sewage is treated .

A surgical mask provides a wide range of wearers with a good fit and improved comfort, facilitates proper use of the mask, and reduces or eliminates fogging of eyewear, as compared with typical masks. The mask may include a pair of ties that are joined to the upper, central, and lower parts of either side of the body of the mask with the assistance of restraint members. The mask may also include a sealing member that reduces or eliminates gaps between the wearer's face and the upper part of the mask by forming a seal between the wearer's face and the mask in use. In addition, the mask may include a barrier panel that reduces or prevents the wearer's breath from escaping through the mask and rising to the wearer's eyewear.

The present invention relates to a method for allocating resources for a transmission of pilot signals of a plurality of terminals (18-23, 24-27) of a cellular multiple-input and multiple-output, MIMO, system. The cellular MIMO system (40) comprises at least a first base station (10) and a second base station (15), wherein each of the first and second base stations (10, 15) has a plurality of antennas (13) and a logic (12) which analyzes pilot signals received from a terminal (18-23, 24-27) at the plurality of antennas (13) to obtain information about radio channel properties between the terminal (18-23, 24-27) and the plurality of antennas (13). According to the method, the first base station (10) determines a first resource (1-3) used for transmission of pilot signals of a first terminal (18-23) and a usage type indicating a usage of the first resource (3). The usage type and information about the first resource (1-3) is transmitted from the first base station (10) to the second base station (15). The second base station allocates based on the usage type and the information about the first resource (1-3) a second resource (2) for a transmission of pilot signals of a second terminal (27) to obtain information about properties of a radio channel between the second terminal (27) and the plurality of antennas (13) of the second base station (15).

A novel method of managing reuse of a returnable bottle which individually manages returnable bottles so as to manage reuse linked with their individual states of use and thereby enable reusable bottles to be accurately, easily, and efficiently separated from other bottles in a scientific manner and enable efficient inspection of aging and other factors which cannot be determined from outside appearance, also, a method of managing reuse of a returnable bottle efficiently promoting reuse of returnable bottles and thereby lowering the costs relating to reuse and reducing energy and otherwise benefitting the environment, comprising, at the time of new production of a returnable bottle body, forming on a bottle body surface a product identification mark part engraved with an identification code as product identification data of the bottle body, reading the product identification mark part and writing and storing the product identification data of the bottle body in the storage medium linked with individual usage state data, and judging permission for continued reuse of the bottle body based on the individual usage state data stored in the storage medium.

The invention discloses an amino-modified magnetic rice husk biochar preparation method and a method for adsorbing uranium in water by using the biochar, and belongs to the field of environmental engineering. The preparation method includes taking a rice husk as a raw material, heating the husk to 500 DEG C for pyrolysis at 5 DEG C min-1 under the condition of introducing nitrogen; washing the husk with ultra-pure water to remove ash, drying, grinding and sieving to obtain rice husk biochar; fully mixing with concentrated sulfuric acid and concentrated nitric acid under the condition of ice-water bath; cooling a reactant to room temperature for suction filtration; washing with the ultra-pure water and ethanol to neutrality; adding ammonia water and an ultra-pure water mixed solution; adding sodium thiosulfate for stirring; adding glacial acetic acid for heating to 80 DEG C and heating for reflux; preforming suction filtration; washing with the ultra-pure water and the ethanol to neutrality; drying to obtain the amino-modified biochar; and mixing and reacting with Fe3O4 particles according to a mass ratio of 2: 1 at 80 DEG C to finally obtain the amino-modified magnetic biochar. Theamino-modified magnetic rice husk biochar prepared by the method has the advantages of wide raw material sources, obvious cost benefits, and convenience for recycling and reuse, so that the biochar is suitable for treating uranium-containing waste water.

A diamond sleeve grinding cutter suitable for drill sleeve guide comprises a circular drill rod and a guide drill sleeve. The guide drill sleeve is positioned on the middle lower portion of the drill rod and connected with a drill template, the drill rod comprises a threaded handle (1), a 120-degree positioning conical surface (2), a core discharging port (3), a core discharging guide hole (4), a dust chip discharging spiral groove (6), a spiral guide surface (7), a dust chip discharging straight groove (8) and a cutter cutting edge (9) from top to bottom, double cylindrical surfaces are combined to from the guide drill sleeve, and a through hole is formed in a core, so that the drill rod conveniently penetrates the through hole. The diamond sleeve grinding cutter is an integrated cutter, the quality of a machined hole is fine, defects are fewer, hole forming efficiency is high, a composite hole with a large diameter can be machined once, dust cuttings are fewer and almost discharged in the form of material cores, environmental pollution is low, and materials can be repeatedly used.

The invention relates to a method for recycling waste ammonia water. The method includes continuously adding desalted water or pure water into the waste ammonia water produced in the purification and distillation processes of liquid ammonia to properly control density of the waste ammonia water, filtering suspended matter in the waste ammonia water to obtain processed waste ammonia water and enabling the processed waste ammonia water to serve as a process addition medium of an acid regeneration unit. Accordingly, the method reduces outsourced processing of the waste ammonia water, simultaneously reduces production operation cost and environment burden, is simple in process implementation and convenient to apply, achieves the aims of reducing material consumption and recycling wastes and simultaneously achieves double benefits of economical benefits and social benefits.

An attachable needle assembly (2) for use on a medication delivery pen (4), the needle assembly (2) comprising a housing (16) that engage the medication delivery pen (4), the housing (16) enclosing a plurality of needles (34) that pierce a reservoir septum (6) of the medication delivery pen (4), a plurality of needle posts (24) each securing one of the plurality of needles (34), and a needle assembly septum (60) enclosing the plurality of needles (34). The needle assembly (2) further including a plurality of integrated peel tabs (70) each detachably connected to one of the plurality of needle posts (24), wherein in a first position of the needle assembly (2), the plurality of needles (34) is disposed in the needle assembly septum (60), and in a second position of the needle assembly (2), one of the plurality of integrated peel tabs (70) is drawn out of the housing (16) to cause a selected needle (40) of the plurality of needles (34) to pierce the needle assembly septum (60) and be exposed for medication delivery.

The invention discloses an automatic blow molding machine adopting artificialized feeding and discharging. The automatic blow molding machine adopting artificialized feeding and discharging comprisesa blow molding machine box. One end of the blow molding machine box is provided with a control switch. The top end of the blow molding machine box is provided with an top plate through connection columns. The top end of the top plate is fixedly connected with a transmission bin, and the end, corresponding to the transmission bin, of the top end of the top plate is connected with an injection molding motor. The side, corresponding to the injection molding motor, of one end of the transmission bin is provided with a hot melting bin. The automatic blow molding machine adopting artificialized feeding and discharging is scientific and reasonable in structure and safe and convenient to use. By arranging a first hydraulic lever, a first side mold, a shifting side mold and a second side mold, theefficiency of the blow molding process is improved, through combination with arrangement of a six-edge seal ring and a six-edge seal groove, the seal performance during blow molding can be improved, and the air pumping time required during blow molding is shortened; by arranging a draw-off pump, an absorption bin, a transfer pipe, a dispersion plate, activated carbon plates and a desiccant plate,absorption of harmful gas in air is convenient during blow molding of raw materials, and the safety guarantee during blow molding production is improved.

An attachable needle assembly (2) for use on a medication delivery pen (4), the needle assembly (2) comprising a spike housing (8) that is configured to engage the medication delivery pen (4) and pierce a reservoir septum (6) of the medication delivery pen (4), a needle assembly housing (22) secured to the spike housing (8), the needle assembly housing (22) enclosing a septum (40) with a cavity (42) that is in continuous fluid communication with the spike housing (8), and a plurality of needles (44) configured to pierce the needle assembly septum (40), wherein when the needle assembly housing (22) is in a first position, the plurality of needles (44) are disengaged from the needle assembly septum (40), and when the needle assembly housing (22) is in a second position, one of the plurality of needles (46) enters into fluid communication with the septum cavity (42) and is exposed for medicament delivery.

The invention provides a production method and production system of methoxy elgenol, and belongs to the technical field of synthetic perfume. The production method of the methoxy elgenol comprises thefollowing steps: taking modified strongly acidic cation exchange resin as a catalyst, reacting dihydromyrcene with methanol to prepare methoxy dihydromyrcene; then taking a hydration reaction catalyst as the catalyst to enable the methoxy dihydromyrcene to undergo hydration reaction with water in the presence of an organic solvent to prepare the methoxy elgenol. The production method has the advantages that the production process is simple; compared with the traditional process, the technological processes of acid separation, solvent extraction and the like are reduced; meanwhile, the preparation process of the epoxidation intermediate product is omitted, and the intrinsic safety is achieved. The production cost is low, and the manufacturing cost and the equipment cost of the traditionalcatalyst are reduced. The production process is green and environment-friendly, and other complex reaction substrates are not introduced, so that the synthesized sandalwood fragrance is closer to nature, and the application range of the product is greatly expanded.

A method of managing reuse of a returnable bottle is disclosed. The method individually manages returnable bottles so as to manage reuse linked with their individual states of use and thereby enable reusable bottles to be separated from other bottles in a scientific manner. The method comprises, at the time of new production of a returnable bottle body, forming on a bottle body surface a product identification mark part engraved with an identification code as product identification data of the bottle body, reading the product identification mark part and writing and storing the product, identification data of the bottle body in the storage medium linked with individual transport state data relating to transport of the bottle body, and judging permission for continued reuse of the bottle body based on the individual transport state data stored in the storage medium.

To provide a vacuum heat insulating material which can improve the handleability of a core material and reduce electrical / thermal energy during manufacture as well as the cost by reusing waste material which contains no binder. In the vacuum heat insulating material 20, the core material 10 having the waste material 4 composed of inorganic fiber polymer is received in an external envelope material 1 having gas barrier property. The core material 10 includes the waste material 4 composed of the inorganic fiber polymer not containing a binder and an internal envelope material 2 enclosing the waste material 4 therein. The external envelope material 1 containing the internal envelope material 2 therein is decompressed so as to be vacuum.

The invention discloses a train brake recovery system and method. The system comprises a traction net and an energy storage electric station, wherein the energy storage electric station is connected with the traction net, and comprises a two-way DC / DC converter and a controller; the controller is used for controlling the two-way DC / DC converter according to the voltage of the traction net so as to control the energy storage electric station to perform charging or discharging. According to the embodiment of the invention, the braking electric energy is absorbed through the energy storage electric station, so that the recovery and the reutilization of the braking electric energy are realized; the energy source waste is reduced; the traction net load is reduced; the voltage of the traction net is effectively monitored; parts of the system are protected; the damage of electric appliances on the traction net is avoided; the system safety is improved. The embodiment of the invention also provides the energy storage electric station and a control center for train dispatching.