10results about How to "Increase extraction rate" patented technology

The invention relates to an electrode material for lithium extraction, a preparation method of the electrode material, a lithium extraction electrode and a lithium extraction system, belongs to the field of salt lake lithium extraction, and solves at least one of the problems of fast capacity fading, relatively low overall lithium extraction efficiency and short service life of a lithium extraction electrode for an alkaline solution in the prior art. A preparation method of an electrode material for lithium extraction comprises the following steps: mixing an electrode active material with a rare earth salt solution, and forming a phosphate rare earth layer on the surface of the electrode active material in an in-situ coating manner; the electrode active material comprises lithium iron phosphate and a doped derivative thereof. When the preparation method, the obtained electrode material, the lithium extraction electrode and the lithium extraction system are applied to lithium extraction of salt lake brine, especially alkaline brine, at least one of the cycle performance, the lithium extraction efficiency and the service life is remarkably improved.

This utility model discloses a rapid extraction device for pesticide residues in food, belonging to the field of pesticide extraction technology. It includes a liquid extraction tank, with a filter screen fixedly installed in the middle of the tank's interior. A base plate is fixedly installed below the filter screen inside the tank. A rotating plate is rotatably mounted at the bottom of the tank via bearings. In this rapid extraction device, liquid containing pesticide residues flows through the filter screen to the top of the base plate. Rotating the rotating plate causes a limiting slider to slide from one end of a limiting groove to the other. At this time, the mounting block disengages from the positioning hole at one end of the limiting groove and slides on the surface of the extraction tank, compressing a return spring. When the positioning post aligns with the positioning holes at both ends of the limiting groove, the return spring rebounds, pushing the positioning post into the positioning hole, making the rotating plate less prone to rotation. At this point, the rotating plate and the rectangular groove on the base plate coincide, allowing the filtrate to flow down from the rectangular groove, thus controlling the discharge of the filtrate.

The utility model discloses an automobile door emergency unlocking handle die which comprises a base, and a cooling box is fixedly arranged in the middle of the upper end of the base. The cooling cavity is formed in the cooling box, a fixed mold is arranged in the cooling cavity, three fixed mold grooves are formed in the upper end of the interior of the fixed mold, the fixed mold grooves are distributed at equal intervals, and cooling holes are formed in the positions, located at the front ends and the rear ends of the fixed mold grooves, of the interior of the fixed mold. And demolding is difficult after the handle is manufactured.

This utility model belongs to the field of evidence extraction technology and discloses a device for extracting combustion accelerants from combustion residues. It includes a base plate, on which a water bath heating chamber, a vacuum suction device, and a controller are mounted. A sealed chamber is installed inside the water bath heating chamber. A one-way air inlet valve is located at the end of an air inlet pipe on one side of the sealed chamber, and a one-way exhaust valve on the other side of the sealed chamber is connected to the vacuum suction device via a flexible hose. An activated carbon filter is installed in a filter assembly located in the middle of the flexible hose. Water bath heating ensures more uniform heating of the sealed chamber, which is beneficial for the decomposition of combustion accelerants in the combustion residues. The vacuum suction device reduces the air pressure inside the sealed chamber, lowers the volatilization and decomposition temperature of the combustion accelerant, and increases the extraction rate of the device. Under the action of the vacuum suction device, substances volatilized from the residues are discharged from the sealed chamber and adsorbed by the activated carbon filter, thereby collecting more combustion accelerant substances and making the extraction effect of the device more ideal.

The present invention relates to a method for recovering rare earth from fluorinated rare earth solid waste, the method comprising the following steps: (1) ball milling mixed fluorinated rare earth solid waste, a conversion agent and a solvent, the obtained ball milled slurry is sequentially subjected to water leaching treatment and solid-liquid separation to obtain a fluorine-containing filtrate and a water leaching residue; (2) the water leaching residue obtained in step (1) is subjected to acid leaching treatment to obtain an acid leaching liquid and an acid leaching residue, the obtained acid leaching liquid is subjected to post-treatment to obtain a rare earth oxide; the fluorine-containing filtrate obtained in step (1) is mixed with an acid solution, and a fluorine-containing compound and a solvent are obtained by evaporation and crystallization, and the obtained solvent is recycled to step (1). The present invention improves the reaction activity of raw materials through the mechanochemical action of ball milling, promotes the efficient conversion of fluorinated rare earth into rare earth hydroxide, thereby achieving complete recovery of fluorine and rare earth, and the method has the characteristics of low cost and energy consumption, green environmental protection, etc.

The utility model discloses a waste bill crushing device which comprises a crushing cylinder, a bill inlet is formed in the top of the crushing cylinder, a crushing mechanism is arranged in the crushing cylinder, a compression cylinder is fixedly connected to the bottom of the crushing mechanism, a compression mechanism is arranged in the compression cylinder, and a water tank is fixedly connected to the bottom of the compression cylinder. A fixing frame is fixedly connected to the front face of the water tank, a control device is fixedly connected into the fixing frame, a sealing mechanism is arranged at an outlet of the compression cylinder, the bottom of the water tank communicates with a drainage pipe, and a valve is arranged in the drainage pipe. According to the utility model, bills can be quickly crushed through the crushing mechanism, ink marks on the crushed bills are soaked and extracted through the ink extracting solution, important information leakage can be avoided, soaked scraps can be compressed through the compression mechanism, meanwhile, the ink extracting solution is recycled, the utilization rate of the ink extracting solution can be improved, and the service life of the ink extracting solution is prolonged. And meanwhile, waste paper scraps are easier to treat.

The invention discloses a preparation method of a tobacco extract, the tobacco extract and a heated cigarette, and the preparation method comprises the following steps: taking a tobacco raw material, and crushing to obtain tobacco powder; carrying out alcoholysis soaking treatment on the tobacco powder to obtain a decomposition product; and performing pulse extraction treatment on the decomposition product to obtain the tobacco extract. According to the method, high-voltage pulse extraction is adopted, effective components in tobacco leaves are greatly reserved, and the prepared tobacco extract is applied to heating cigarettes and has the application effect of increasing the original fragrance and satisfaction of the tobaccos.

The utility model discloses an automatic opening and closing's high temperature test box, including anticreep damage subassembly, anticreep damage subassembly includes C shaped groove and first spring, the C shaped groove is seted up in high temperature test box main part middle part inner wall, the both sides fixed connection first spring one end of shelf, the C shaped groove is movably connected shelf and first spring, the both ends distance high temperature test box main part place C shaped groove inner wall clearance of shelf is three centimeters, the rear end distance high temperature test box main part place C shaped groove inner wall clearance of shelf is four centimeters, the C shaped groove height is the thickness of shelf's twice, the C shaped groove of setting up in the utility model can make the clearance between the outside of shelf and high temperature test box main part, and then can place the deformation part of the expansion when shelf heating, avoid the bending, warping or with the stress conflict phenomenon of cabinet frame of shelf, and then guarantee the service life of shelf.

The invention provides a Fe3O4 / GO / CS magnetic nano composite material and application thereof in detecting the content of danofloxacin in swine urine, and belongs to the technical field of antibiotic detection. The Fe3O4 / GO / CS magnetic nano composite material is prepared from Fe3O4, graphene oxide and chitosan, and the Fe3O4 / GO / CS magnetic nano composite material is prepared from Fe3O4, graphene oxide and chitosan. The detection method comprises the following steps: dispersing Fe3O4 / GO / CS into a to-be-detected sample solution, carrying out magnetic solid-phase extraction to obtain a to-be-analyzed sample, and detecting the content of danofloxacin in the to-be-analyzed sample by adopting HPLC-FLD. According to the Fe3O4 / GO / CS magnetic nano composite material provided by the invention, the pretreatment process of a sample is simplified, the sample extraction rate is improved, and the detection method has relatively high sensitivity and accuracy and is suitable for detecting danofloxacin in a pig urine sample.

The utility model discloses acid discharge equipment and a battery piece production system, an air exhaust mechanism is located at a first outlet end of an acid discharge pipeline along a first direction and is connected with the first outlet end, so that air in the acid discharge pipeline can be exhausted, one end of a transmission pipeline is connected with a diffusion furnace, and the other end of the transmission pipeline is connected with a first adapter; the second outlet end of the first adapter at least partially extends into the first acid discharge hole in the side wall of the acid discharge pipeline and is provided with a diagonal plane which forms an included angle with the first direction, and the diagonal plane is arranged towards the first outlet end. Thus, the second outlet end is provided with the diagonal plane facing the gas extraction mechanism, and after gas enters the acid discharge pipeline, the diagonal plane can change the flowing direction of the gas, so that the gas can be better extracted by the gas extraction mechanism, and the extraction rate of the gas exhausted by the second outlet end by the gas extraction mechanism can be improved; therefore, the condition that the acid discharge pipeline is blocked due to crystallization generated by too slow discharge of the acid gas can be avoided.