Abstract: A bismuth-doped bismuth phosphate photoelectrode modified by titanium carbide and a preparation method are provided. A first chitosan coating and a second chitosan coating both show electropositivity, and a two-dimensional Ti3C2 coating shows electronegativity, wherein the bismuth-doped bismuth phosphate photoelectrode modified by two-dimensional Ti3C2 is prepared by an electrostatic self-assembly method. The method is efficient, environment friendly and has simple operation steps; no precious metals are doped in reactions, and no pollutants are produced in reaction processes to meet a requirement of environmental protection; and the method has positive significance for putting the bismuth-doped bismuth phosphate photoelectrode modified by the titanium carbide into actual production. The bismuth-doped bismuth phosphate photoelectrode enhances synergistic effect of electrons and delays recombination time of photo-induced electrons and hole pairs.

Abstract: A high-strength medical fiber composite material includes a sodium alginate hydrogel matrix and a fiber framework. The fiber framework is completely embedded in the sodium alginate hydrogel matrix and formed by compounding supporting layer fibers and reinforcing layer fibers. The reinforcing layer fibers are located above the supporting layer fibers. The reinforcing layer fibers and the supporting layer fibers are orthogonal to each other. According to the high-strength medical fiber composite material prepared in the present invention, the stiffness is improved by 3-4 orders of magnitude, the tensile strength is improved by 2-3 orders of magnitude, and the high-strength medical fiber composite material has high biocompatibility and safety and a great application prospect.

Abstract: A humanoid finger mechanism includes: a finger seat; at least one proximal knuckle, located at an outer side of the finger seat; at least one middle knuckle, located at an outer side of the at least one proximal knuckle; a distal knuckle, located at an outer side of the at least one middle knuckle; a driver, located at an inner side of the finger seat; a driving cable, wherein a first end of the driving cable is connected with the driver, while a second end of the driving cable is connected with the distal knuckle after sequentially penetrating through the finger seat, the at least one proximal knuckle and the at least one middle knuckle; and a tension band, a first end of the tension band is connected with the finger seat, while a second end of the tension band is connected with the distal knuckle.

Abstract: A glass panel and silicon wafer separation device for photovoltaic module recovery includes a tank body, a supporting plate and at least two floating blocks. The supporting plate is positioned in the tank body. A vertically arranged first cylinder is arranged at a lower end of the tank body. An output end of the first cylinder is fixedly connected to a lower end of the supporting plate. A groove is formed in an upper end of the supporting plate, and the groove is matched with a photovoltaic plate. A heating block is mounted at a lower end of an inner wall of the tank body. The at least two floating blocks are columnar. Lower ends of the at least two floating blocks are fixedly connected to chucks, and the chucks are downwards opened. Fixed pipes are connected between the at least two floating blocks.

Abstract: A heating treatment device for photovoltaic module recycling includes a box, a heating rod and a gas pump. A horizontal partition is fixedly arranged inside the box, and the heating rod is located below the partition. The partition is provided with evenly distributed second through slots. An upper end of the partition is provided with evenly distributed shelf boards. The shelf boards are arranged vertically. One side of the shelf board is provided with a groove. The shelf board is further provided with a suction cup. An end surface at an opening of the suction cup is flush with an inner wall of the groove. The movable splitting sheets are arranged in the device. A lower end of the splitting sheet is provided with gas vents, and hot air is discharged through the gas vents. The temperature of the hot air is controlled at 220-240° C.

Abstract: A pyrolysis apparatus for completely separating an EVA crystal silicon wafer from a waste photovoltaic module includes a heating mechanism controlled by a control system and mounted in a pyrolysis box and being capable of performing telescopic motion in a vertical direction; an overturning assembly for fixedly clamping and driving a photovoltaic module to overturn, the overturning assembly is arranged just under the heating mechanism; and a splitting assembly for separating the photovoltaic module, the splitting assembly is arranged at a left side of the photovoltaic module fixedly clamped by the overturning assembly. A splitting apparatus is provided for assisting in splitting EVA, and isolating glass from the crystal silicon wafer, as well as isolating a back plate from the crystal silicon wafer, and therefore, the pressure generated on the crystal silicon wafer due to large strength of the glass and shrinkage of the back plate is prevented.

Abstract: A cleaning device for crystalline silicon recycled from photovoltaic cells by wet purification includes at least two tanks, a vacuum pump and first cleaning mechanisms arranged between the tanks. The number of the first cleaning mechanisms is the same as that of the tanks. An upper end of the tank is provided with a cover plate, and a lower end of the tank is provided with a discharge port. The upper end of the tank is provided with a ventilation port. The first cleaning mechanism includes a drum. A lower end of the drum is connected with a lower hood, and an upper end of the drum is connected with an upper hood. A sealing surface is arranged respectively between the drum and the lower hood and between the drum and the upper hood. The device includes the tanks, the vacuum pump and the first cleaning mechanisms.

Abstract: A dismantling device for a waste photovoltaic module by liquid ejection includes a table top, a lifting tray, a bottom suction cup, a top suction cup and a chassis fixedly arranged on a lower side of the table top. A middle part of the table top is provided with a tray hole. The lifting tray corresponds to the tray hole up and down. A tray lifting motor is mounted in the chassis, and an upper end of an output shaft of the tray lifting motor is fixedly connected to the lifting tray. Left and right sides of the tray hole are respectively provided with an ejection mechanism X-direction sliding table, and a slider of the ejection mechanism X-direction sliding table is fixedly provided with an ejection mechanism.

Abstract: Disclosed is a method for synthesizing ?-cyano ketone compound, including steps of (1) adding a ?-keto acid and sodium hydroxide to a separator-free electrolytic cell, adding acetonitrile thereto, and dissolving the ?-keto acid and sodium hydroxide in acetonitrile by stirring to be uniform, to obtain a dissolution solution; (2) adding an alkene or a derivative thereof, cyanobenziodoxolone, and an electrolyte to the dissolution solution, to obtain a mixed solution; (3) subjecting the mixed solution to an electrochemical reaction by electrifying a cathode of a platinum sheet, and an anode of a graphite electrode to obtain a reacted solution; and (4) after the electrochemical reaction, collecting the reacted solution, adding water thereto and stirring to obtain a mixture, subjecting the mixture to an extraction to obtain an organic phase, drying the organic phase and purifying, to obtain the ?-cyano ketone compound.

Abstract: A follow-up swing head type large taper wire cutting device is disclosed. In the large taper wire cutting device, swing heads on upper and lower mechanical arms are adjusted in a follow-up way by swing head rotating mechanisms in coordination with a cutting taper, universal wire guide wheels are used to cooperate with the corresponding upper and lower swing heads, and tensioning mechanisms between the universal wire guide wheels and directional wire guide wheels are used for transition to ensure the smooth transition of an electrode wire, so that the electrode wire is effectively prevented from sliding off during large taper cutting, and the control of the follow-up deflection position of the electrode wire is also very accurate.

Abstract: A method for preparing a silane coupling agent/silica/plant fiber composite includes the following steps: S1: pretreating plant fiber; S2: preparing hydrolysate of a silane coupling agent; S3: preparing a silane coupling agent/plant fiber composite; S4: preparing a silica nanoparticle dispersion; and S5: preparing a silane coupling agent/silica nanoparticle/plant fiber composite. Through the covalent interaction among a silanol group (Si—OH) formed by hydrolysis of the silane coupling agent, Si—OH of the silica, and a hydroxyl group (—OH) on the surface of the plant fiber, the present invention enables silica nanoparticles to be grafted on the surface of the plant fiber. Using a hydrophobic film formed by the silane coupling agent, harmful ions are prevented from invading, and the volume stability of the fiber is improved. Using the pozzolanic activity of the silica nanoparticles, the alkalinity and calcium hydroxide content around the fiber are reduced.

Abstract: A rotary kiln with a stirring function is provided, including a kiln head, a roller and a kiln tail. The roller is obliquely arranged on the kiln head and the kiln tail. The rotary kiln further includes a mounting shaft and stirring mechanisms. Linkage elements are arranged on an inner wall of the roller. The linkage elements are configured to drive the stirring mechanisms to perform a stirring operation. Each of the stirring mechanisms includes a rotating ring sleeve and two limiting slide bases. The rotating ring sleeve is provided with three telescopic frame bodies. A telescopic baffle is arranged in each of the three telescopic frame bodies. A secondary propulsion assembly is arranged in a mounting groove. A sealing cover is arranged at an inner end of the telescopic baffle. The telescopic frame body is communicated with the rotating ring sleeve.