摘要：【中文】本发明涉及一种亚纳米级金属钴颗粒@分子筛的双功能催化剂及其制备方法和用途，所述催化剂中金属钴颗粒的粒径为0.1‑2nm，为亚纳米级，且金属钴颗粒分布均匀、粒径均一；所述催化剂中金属钴颗粒的含量为0.1‑5wt％，所述分子筛选自具有FAU、MOR、*BEA、MWW或MFI结构的分子筛中的任意一种，所述分子筛中SiO₂/Al₂O₃＝5～50；基于硝酸钴熔点低，且金属钴和上述硅铝比范围分子筛骨架铝间的强相互作用的特性，本发明采用固相熔融的方法，将硝酸钴与分子筛混合研磨，密闭加热，焙烧、还原，得到所述催化剂；所述催化剂的制备方法快速简便、原料易得、成本低廉、工艺环保、无水无废液产生，便于工业化操作。 【EN】The invention relates to a sub-nanometer metal cobalt particle @ molecular sieve bifunctional catalyst, a preparation method and application thereof, wherein the particle size of the metal cobalt particle in the catalyst is 0.1-2nm, the metal cobalt particle is sub-nanometer, and the metal cobalt particle is uniformly distributed and uniform in particle size; the content of metallic cobalt particles in the catalyst is 0.1-5 wt%, and the molecular sieve is selected from any one of molecular sieves with FAU, MOR, BEA, MWW or MFI structures, and SiO in the molecular sieve₂/Al₂O₃5-50 percent; based on the characteristics of low melting point of cobalt nitrate and strong interaction between metal cobalt and the framework aluminum of the molecular sieve in the range of the ratio of silicon to aluminum, the invention adopts a solid-phase melting method to mix and grind the cobalt nitrate and the molecular sieve, and then the catalyst is obtained by closed heating, roasting and reducing; preparation of the catalystThe preparation method is rapid, simple and convenient, the raw materials are easy to obtain, the cost is low, the process is environment-friendly, no water or waste liquid is generated, and the industrial operation is convenient.

摘要：【中文】本发明公开了一种具备过欠压保护的直流继电器，包括直流线圈继电器、欠压比较电路、过压比较电路、第一参考基准电压产生电路和第二参考基准电压产生电路，直流线圈继电器的输入端用于接收输入电压，直流线圈继电器的外部控制端用于接收外部控制信号；两个电压产生电路产生第一参考基准电压和第二参考基准电压，第一参考基准电压低于第二参考基准电压；欠压比较电路用于比较输入电压和第一参考基准电压；过压比较电路用于比较输入电压和第二参考基准电压；直流线圈继电器在输入电压高于第一参考基准电压且低于参考基准电压时，仅受外部控制信号控制。本发明能够灵活设定过欠压保护值，并且不需要外部主动控制器件。 【EN】The invention discloses a direct current relay with over-voltage and under-voltage protection, which comprises a direct current coil relay, an under-voltage comparison circuit, an over-voltage comparison circuit, a first reference voltage generation circuit and a second reference voltage generation circuit, wherein the input end of the direct current coil relay is used for receiving input voltage, and the external control end of the direct current coil relay is used for receiving an external control signal; the two voltage generating circuits generate a first reference voltage and a second reference voltage, and the first reference voltage is lower than the second reference voltage; the undervoltage comparison circuit is used for comparing the input voltage with a first reference voltage; the overvoltage comparison circuit is used for comparing the input voltage with a second reference voltage; the direct current coil relay is controlled only by an external control signal when the input voltage is higher than the first reference voltage and lower than the reference voltage. The invention can flexibly set the over-voltage and under-voltage protection value without an external active control device.

摘要：【中文】本发明公开了一种Ni@ZSM‑5多级孔结构的双功能催化剂、封装方法及其应用，所述催化剂是具有多级孔结构的、金属加氢/脱氢和分子筛酸催化的双功能催化剂，N₂吸附‑脱附曲线在p/p₀＝0.4～0.6存在明显吸附‑脱附滞后环；封装金属Ni纳米颗粒分布均匀、粒径均一、约1～10nm且含量为0.1～5wt％；所述封装方法是在水热晶化条件下通过改性方法，一步实现金属Ni纳米颗粒封装、ZSM‑5分子筛扩孔以及补铝；所述催化剂用于含氧化合物加氢脱氧反应中，表现出优异的催化性能和稳定性。 【EN】The invention discloses a bifunctional catalyst with a Ni @ ZSM-5 hierarchical pore structure, an encapsulation method and application thereof, wherein the catalyst is a bifunctional catalyst with a hierarchical pore structure, metal hydrogenation/dehydrogenation and molecular sieve acid catalysis, and N is₂Adsorption-desorption curve at p/p₀Obvious adsorption-desorption lag rings exist in the range of 0.4-0.6; the packaged metal Ni nano particles are uniformly distributed and have uniform particle size of about 1-10 nm and the content of 0.1-5 wt%; the packaging method is to realize the packaging of the metal Ni nano particles and the ZSM-5 separation in one step by a modification method under the condition of hydrothermal crystallizationReaming the sub-sieve and supplementing aluminum; the catalyst is used in the hydrodeoxygenation reaction of the oxygen-containing compound, and shows excellent catalytic performance and stability.

摘要：【中文】本发明涉及一种Ni@ZSM‑5双功能催化剂的封装方法，所述方法包括：以FAU结构分子筛为铝源，以金属Ni前驱体为Ni源，通过转晶制备ZSM‑5分子筛过程中封装金属镍，得到Ni@ZSM‑5双功能催化剂。本发明所述封装方法得到的Ni@ZSM‑5封装催化剂具有金属加氢和分子筛酸催化双功能，显著拓宽封装催化剂的应用范围；而且封装金属Ni纳米颗粒分布均匀、粒径均一；除此之外，本发明所述Ni@ZSM‑5双功能催化剂是在无钠体系下实现的，不存在后续离子交换步骤，所述封装方法快速简便、流程短、成本低廉，易工业化操作。 【EN】The invention relates to an encapsulation method of a Ni @ ZSM-5 bifunctional catalyst, which comprises the following steps: packaging metal nickel in the process of preparing the ZSM-5 molecular sieve by crystal transformation by taking the FAU structure molecular sieve as an aluminum source and a metal Ni precursor as a Ni source to obtain the Ni @ ZSM-5 bifunctional catalyst. The Ni @ ZSM-5 encapsulated catalyst obtained by the encapsulation method has the dual functions of metal hydrogenation and molecular sieve acid catalysis, and the application range of the encapsulated catalyst is remarkably widened; the packaged metal Ni nano particles are uniformly distributed and have uniform particle size; in addition, the Ni @ ZSM-5 bifunctional catalyst is realized in a sodium-free system, a subsequent ion exchange step does not exist, and the packaging method is quick, simple, convenient, short in flow, low in cost and easy to industrially operate.

摘要：【中文】提供一种用于薄壁锥面零件的精密车削夹具，包括胀紧芯轴和紧固件，胀紧芯轴外表面前部设有与薄壁工件的工件内锥面适配的芯轴外锥面，胀紧芯轴外表面中部形成与薄壁工件的内孔适配的芯轴定位外圆，胀紧芯轴中心设有芯轴内孔，芯轴内孔前端设有芯轴内螺纹，芯轴内孔后端设有芯轴内锥面，胀紧芯轴后部圆周均匀设有多个胀紧开槽；紧固件前端设有与胀紧芯轴的芯轴内螺纹适配旋合的紧固外螺纹，紧固外螺纹后部设有与芯轴内锥面接触的紧固外锥面。本发明采取胀紧芯轴，手动拧入紧固件胀紧工件，锥面与工件锥面贴合装夹，增加了薄壁零件的刚性，避免薄壁零件被加持时和加工过程中引起变形，提高零件加工精度，结构简单，装夹方便。 【EN】The precision turning fixture for the thin-wall conical surface part comprises an expansion mandrel and a fastening piece, wherein the front part of the outer surface of the expansion mandrel is provided with an outer conical surface of the mandrel matched with the inner conical surface of the thin-wall workpiece, the middle part of the outer surface of the expansion mandrel forms a mandrel positioning excircle matched with the inner hole of the thin-wall workpiece, the center of the expansion mandrel is provided with a mandrel inner hole, the front end of the mandrel inner hole is provided with a mandrel internal thread, the rear end of the mandrel inner hole is provided with an inner conical surface of the mandrel, and the circumference of the rear part of the expansion mandrel; the front end of the fastening piece is provided with a fastening external thread matched and screwed with the internal thread of the mandrel of the expansion mandrel, and the rear part of the fastening external thread is provided with a fastening external conical surface contacted with the internal conical surface of the mandrel. According to the invention, the expansion mandrel is adopted, the fastener is manually screwed in to expand the workpiece, the conical surface is attached to the conical surface of the workpiece for clamping, the rigidity of the thin-wall part is increased, the deformation of the thin-wall part caused by clamping and in the machining process is avoided, the machining precision of the part is improved, the structure is simple, and the clamping is convenient.

摘要：【中文】本发明涉及小球藻中油脂分离纯化，具体的说是一种利用微藻制备可食用油的分离纯化方法。本发明以小球藻藻粉为原料，破碎后经溶剂提取、初级脱色、再次萃取、二次脱色，经过蒸发去除溶剂后，制备获得两种微藻食用油制品。该发明具有操作简便快速等优点，有利于简化下游加工操作，有利于对微藻中生物质综合利用。 【EN】The invention relates to separation and purification of oil and fat in chlorella, in particular to a separation and purification method for preparing edible oil by utilizing microalgae. The invention takes chlorella algae powder as raw material, and two microalgae edible oil products are prepared by crushing, then carrying out solvent extraction, primary decolorization, secondary extraction and secondary decolorization, and removing the solvent through evaporation. The method has the advantages of simple and quick operation and the like, is favorable for simplifying downstream processing operation, and is favorable for comprehensive utilization of biomass in microalgae.

摘要：【中文】本发明属于电子废弃物回收利用技术领域，公开了一种锂电池芯包分解装置及方法。所述锂电池芯包分解装置包括用于夹持芯包的夹持机构、用于将极片割断的切割机构、用于将割断后的极片的一端压紧的压紧机构和用于将极片的另一端展开并压紧的反卷机构和用于将展开后的极片进行吸附分离的分离机构。本发明通过利用夹持机构、切割机构、压紧机构、反卷机构和分离机构的相互配合，实现了锂电池芯包能够自动化地被单独拆解。 【EN】The invention belongs to the technical field of electronic waste recycling and discloses a lithium battery core package decomposition device and method. The lithium battery core bag decomposition device comprises a clamping mechanism for clamping the core bag, a cutting mechanism for cutting the pole piece, a pressing mechanism for pressing one end of the cut pole piece, a reverse winding mechanism for unfolding and pressing the other end of the pole piece and a separating mechanism for adsorbing and separating the unfolded pole piece. According to the invention, the lithium battery core package can be automatically and independently disassembled by utilizing the mutual matching of the clamping mechanism, the cutting mechanism, the pressing mechanism, the rewinding mechanism and the separating mechanism.

摘要：【中文】本发明涉及微藻中油脂分离纯化，具体的说是一种基于强亲水性的分离材料选择性富集微藻中单半乳糖二酰基甘油(MGDG)的方法。本发明以藻粉为原料，提取油脂后经C18固相分离柱脱除色素与中性脂；强亲水性分离材料选择性分离得到MGDG纯品。该发明具有操作简便快速等优点，有利于简化下游加工操作，有利于对微藻中生物质综合利用。 【EN】The invention relates to separation and purification of oil and fat in microalgae, in particular to a method for selectively enriching Monogalactosyldiacylglycerol (MGDG) in microalgae based on a separation material with strong hydrophilicity. The invention takes algae powder as raw material, removes pigment and neutral fat through C18 solid phase separation column after extracting grease; and selectively separating by using a strong hydrophilic separation material to obtain the MGDG pure product. The method has the advantages of simple and quick operation and the like, is favorable for simplifying downstream processing operation, and is favorable for comprehensive utilization of biomass in microalgae.

摘要：【中文】本公开提供了一种选择性提锂的方法及装置。该方法包括：在反应釜中将固体粉料、水混合，形成混合浆液；加热反应釜至反应温度，并提高反应釜的压力，向混合浆液加入酸，并控制其pH值为2～3；以及反应一段时间后，停止加入酸，并继续反应至混合浆液的pH值为6～7；其中，固体粉料包括锂离子电池电极粉料。 【EN】The present disclosure provides a method and apparatus for selectively extracting lithium. The method comprises the following steps: mixing the solid powder and water in a reaction kettle to form mixed slurry; heating the reaction kettle to a reaction temperature, increasing the pressure of the reaction kettle, adding acid into the mixed slurry, and controlling the pH value of the mixed slurry to be 2-3; after reacting for a period of time, stopping adding the acid, and continuing to react until the pH value of the mixed slurry is 6-7; wherein the solid powder comprises lithium ion battery electrode powder.

摘要：【中文】双金属复合制动盘及其制造方法，包括连接机构和制动盘本体，连接机构包括一体成型的法兰、连接体和复合体；连接体将法兰和复合体连接，连接体呈圆形管状结构，一端设置有一体成型的法兰连接，另一端设置有一体成型的复合体，复合体呈圆环形状，复合体具有内圆环边沿与连接体连接；制动盘本体呈圆环形状结构，包括两个制动盘面，两个所述制动盘面表面平行，且之间通过若干均匀交叉分布的圆柱连接，将两个制动盘面连接为一体，从而两个制动盘面之间形成通风道。连接机构采用高强度钢板制作，产品使用过程中不会出现法兰开裂或脱顶现象，保证了车辆行驶安全性能；减轻了产品重量；由于连接机构采用高强度钢板制作，可减少产品壁厚，重量减轻。 【EN】The bimetal composite brake disc comprises a connecting mechanism and a brake disc body, wherein the connecting mechanism comprises a flange, a connecting body and a composite body which are integrally formed; the flange and the complex are connected by the connecting body, the connecting body is in a circular tubular structure, one end of the connecting body is provided with an integrally formed flange connection, the other end of the connecting body is provided with an integrally formed complex, the complex is in a circular ring shape, and the complex is provided with an inner circular ring edge which is connected with the connecting body; the brake disc body is the annular shape structure, including two braking quotations, two braking quotation surface parallel connects through a plurality of even cross distribution's cylinder between and, connects two braking quotations as an organic whole to form the ventiduct between two braking quotations. The connecting mechanism is made of high-strength steel plates, so that the phenomenon of flange cracking or top shedding is avoided in the using process of the product, and the driving safety performance of the vehicle is ensured; the weight of the product is reduced; because the connecting mechanism is made of high-strength steel plates, the wall thickness of the product can be reduced, and the weight is reduced.