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221results about How to "High degree of separation" patented technology

Comb tooth type ricinus communis combine harvester with fruit picking and straw fixed length fixed quantity and bundling functions

The invention relates to a comb tooth type ricinus communis combine harvester with fruit picking and straw fixed length fixed quantity and bundling functions. The combine harvester is reasonable in structure and integrates picking, separating and cleaning of castor seeds with fixed length segmentation, fixed quantity compaction and automatic bundling of straw. A comb tooth picking system and a feed-in disc type header system are located at the front end of a harvester body, a separating and cleaning system and a hob type fixed length segmentation system are located at the middle end of the harvester body, and fixed quantity compaction and bundling systems are located at the rear end of the harvester body; a comb tooth picking device which rotates anticlockwise is adopted for the comb tooth picking system to pick off the castor seeds and send the castor seeds to the separating and cleaning system, the castor seeds after being collected and separated through a grain collection bin are arranged below an outlet of the separating and cleaning system, a divider is arranged in the front of the harvester body, ricinus communis straw is fed into the disc type header system, the cutoff straw is fed into the hob type fixed length segmentation system through a stalk lifting conveyer belt, and an outlet of the hob type fixed length segmentation system is connected with the fixed quantity compaction and bundling systems; all the systems are driven by a power device through corresponding transmission devices.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY +1

Method for repairing and regenerating nickel cobalt manganese ternary positive electrode material in waste battery

The invention provides a method for repairing and regenerating a nickel cobalt manganese ternary positive electrode material in a waste battery. The method comprises the following steps: splitting an positive electrode material from a lithium cobalt oxide waste battery; laying the ternary positive electrode material on a mesh belt, controlling the mesh belt to continuously vibrate, and controlling gas to pass through meshes of the mesh belt from bottom to top; under the conditions that the mesh belt vibrates and gas flows through the meshes of the mesh belt, respectively heating a ternary positive electrode slice at the temperature of 100 to 300 DEG C and the temperature of 380 to 520 DEG C for 10 to 60 minutes, and collecting ternary positive electrode material powder I; sequentially sieving the ternary positive electrode material powder I to remove a broken aluminum foil and performing electromagnetic iron removal on the ternary positive electrode material powder I to obtain ternary positive electrode material powder II, and performing ball milling on the ternary positive electrode material powder II to obtain ternary positive electrode material powder III; dissolving aluminum powder by the ternary positive electrode material powder III under the condition of weak acid, corroding the surface of the ternary positive electrode material to form the ternary positive electrode material with high activity and high dispersity, and synthesizing and repairing the ternary positive electrode material serving as a nucleating agent to obtain a spherical ternary precursor material with uniform particles. The size mixing and coating properties and electrochemical properties of the spherical ternary precursor material prepared by the method provided by the invention are repaired.
Owner:JINGMEN GEM NEW MATERIAL

Regenerating process technology for producing high-quality low-pour-point lubricant base oil by full hydrogen method of waste lubricant oil

The invention relates to a regenerating process technology for producing high quality low-pour-point lubricant base oil by the full hydrogen method of waste lubricant oil. The process technology comprises the following steps: firstly, performing predistillation and atmospheric flashing on the waste lubricant oil to remove water and pulling out light oil, and then performing propane refining to remove the vast majority of impurities and additives in the oil; performing a hydrogenating reaction on the lubricant oil fraction without water and impurities and hydrogen under the action of a catalyst after being mixed, and performing gas liquid separation to obtain a liquid which enters a stripping tower to divide, thereby obtaining naphtha and light diesel oil from the top of the stripping tower; and feeding the pre-heated product in the bottom of the stripping tower into an isomeric pour point depression reactor and a compensating refining reactor, and separating light oil and the lubricant base oil from the reaction product through a fractioning device. The regenerating process technology provided by the invention is environment-friendly and pollution-free; the regenerating recovery of waste oil reaches up to 99% or above; the oxidizing stability and light stability of the base oil are remarkably improved; the product is good in quality and high in additional value; and therefore, the regenerating process technology has a very good market application prospect.
Owner:湖北润驰环保科技有限公司

Method for reparative regeneration of lithium cobalt oxide anode material in waste batteries

The invention provides a method for reparative regeneration of a lithium cobalt oxide anode material in waste batteries. The method includes: separating the anode material from lithium cobalt oxide waste batteries; laying positive pole pieces on a mesh belt, and controlling the mesh belt to vibrate continuously while controlling gas to pass through the meshes of the mesh belt from bottom to top; under conditions of vibration of the mesh belt and gas circulation of the meshes of the mesh belt, respectively heating the positive pole pieces for 10-60min at 100-300 DEG C and 380-520 DEG C, and collecting anode material powder I; sequentially subjecting the anode material powder I to screening removal of broken aluminum foils and electromagnetic removal of iron to obtain anode material powder II, and sampling to detect contents of Li, Co and Al in the anode material powder II; replenishing Li element and Al element to the anode material powder II according to a detection result obtained at the step 4 to obtain anode material powder III, wherein a mole ratio of Li to Co to Al is 1-1.05:1-x:x, and x refers to 0.05-0.2; subjecting the anode material powder III to ball milling in a high-energy ball mill to obtain anode material powder IV; calcining the anode material powder IV in a pure oxygen atmosphere to obtain repaired regenerated lithium cobalt oxide.
Owner:JINGMEN GEM NEW MATERIAL

Method for separating and enriching lithium, aluminum and silicon from fly ash

The invention discloses a method for separating and enriching lithium, aluminum and silicon from fly ash. The method comprises the following steps: (1) pretreating fly ash; (2) carrying out low-temperature alkali dip reaction on the treated fly ash, aids and a sodium hydroxide solution, and filtering; (3) washing the filter residue, removing the impurities, filtering, and drying to obtain calcium silicate; (4) regulating the pH value of the filtrate to alkalinity, separating the lithium / aluminum-containing filtrate to obtain a sodium metaaluminate concentrated solution and a lithium-rich solution, carrying out reverse osmosis on the lithium-rich solution to obtain a lithium concentrated solution, and mixing the sodium metaaluminate concentrated solution with the lithium / aluminum-containing filtrate to obtain a refined solution; (5) precipitating the sodium metaaluminate refined solution, filtering to obtain aluminum hydroxide, and calcining to obtain the aluminum oxide finished product; (6) treating the lithium-rich solution to obtain a lithium-rich concentrated solution and fresh water; and (7) carrying out carbonating precipitation on the lithium-rich concentrated solution, filtering, and drying to obtain the lithium carbonate finished product. The method is a short-stage extraction process, reduces the lithium loss, and implements separation, enrichment and extraction of calcium silicate, aluminum oxide and lithium carbonate.
Owner:HEBEI UNIV OF ENG

Sand beach garbage sieving and transmission integrated device

The invention discloses a sand beach garbage sieving and transmission integrated device and relates to sand beach cleaning equipment. The sand beach garbage sieving and transmission integrated device is provided with a sand shovel, a conveying belt, a transmission belt pulley, a conveying belt motor, a sand spit, an inner sieve drum, a bottom sieve tray, spiral sieving blades, a bottom sieve tray belt pulley, a spiral sieving blade belt pulley, a blade motor, a separator, a sand-proof outer bucket, a refuse hopper push rod, a frame, a refuse hopper and a top cover; the sand shovel is fixedly connected to one end of the conveying belt; the other end of the conveying belt is fixedly connected with the sand spit; the bottom sieve tray is in running fit with the sand-proof outer bucket; the inner sieve drum is fixedly connected to the inside of the sand-proof outer bucket; the separator is arranged at one side of the inner sieve drum; the spiral sieving blades are nested on a center shaft arranged on the bottom sieve tray by a hollow shaft; the bottom sieve tray belt pulley and the spiral sieving blade belt pulley are arranged at the top of the center shaft arranged on the bottom sieve tray; the blade motor is arranged on the frame; an output shaft of the blade motor is provided with a driving belt pulley; the driving belt pulley is connected with both the bottom sieve tray belt pulley and the spiral sieving blade belt pulley; the refuse hopper is positioned behind the sand-proof outer bucket, and is hinged to the frame; the refuse hopper push rod is hinged to the refuse hopper.
Owner:XIAMEN UNIV

Organic-inorganic hybrid membrane for pervaporation separation of methanol/methyl acetate azeotropic system and preparation method thereof

The invention discloses an organic-inorganic hydrid film used for pervaporation separation of a methanol / methyl acetate azeotropic system and a preparation method thereof. The preparation method comprises the following processes of: (1) heating and stirring polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), a 4A molecular sieve and a solvent of dimethyl sulfoxide according to proportions in a constant-temperature water bath to obtain a PVA / PVP / 4A molecular sieve mixing solution; and (2) weighing DAS (Dialdehyde Starch) according to a proportion, dissolving into the dimethyl sulfoxide, stirring in a dark place and dissolving, then adding the equivalent PVA / PVP / 4A molecular sieve mixing solution obtained in the step (1) to the solution, and uniformly stirring to obtain a casting film solution. The casting film solution is filtered and defoamed, and then the film is scraped from glass and dried. The dried film is placed below a high-pressure mercury lamp and irradiated for 30-60 min toensure that coupling reaction is completed so as to obtain a 4A molecular sieve-filled DAS-crosslinking polyvinyl alcohol / polyvinylpyrrolidone organic-inorganic hydrid film. The organic-inorganic hydrid film has favorable mechanical strength and chemical stability and a higher pervaporation separation coefficient and can effectively break azeotropic components and has better separation degree than the traditional method.
Owner:NINGBO UNIV

Electroluminescent polymer based on thiodibenzofuran-bithiophene unit and preparation method and application thereof

The invention belongs to the field of organic photoelectric devices and discloses an electroluminescent polymer based on a thiodibenzofuran-bithiophene unit and a preparation method and application thereof. The thiodibenzofuran-bithiophene unit in the electroluminescent polymer is of seven-membered polycyclic structure, having good planarity, thereby facilitating injection and transport of carriers and improving photoelectric properties of the material herein; the fused ring structure imparts good rigidity to the thiodibenzofuran-bithiophene unit, heat resistance of the material can be improved, and the practical requirement on the material is met; a strongly electrically negative group-sulfone group imparts high electron-absorbing capacity to the thiodibenzofuran-bithiophene unit, and intramolecular charge transfer occurs between the strongly electrically negative group-sulfone group and an adjacent group, spectral red shift is caused, and a luminescent material with expected color coordinates is attained. The electroluminescent polymer based the thiodibenzofuran-bithiophene unit prepared by Suzuki polymerization has good solubility, can be dissolved with common organic solvents,and can be made into a light-emitting diode light-emitting layer through spin coating, inkjet printing or film printing.
Owner:东莞伏安光电科技有限公司

Solid-liquid separation device for chemical production

The invention discloses a solid-liquid separation device for chemical production. The device comprises a filter and a dryer. The filter is installed at a vertical axis position inside the machine body, a driving motor is installed at the top of the machine body, the driving motor is in drive connection with the filter through a driving main shaft, feed pipes are installed on both sides of a truncated cone at the upper part of the machine body, the feed pipes are communicated with the filter, the outlet of the dryer is communicated with a discharge valve through a pipeline, a liquid collectingtank is installed outside a feed delivery pipe, a circulating pump is installed in a protection cover mounted on one side outside the machine body, the inlet of the circulating pump is communicated with the inside of the liquid collecting tank through a pipette, the outlet of the circulating pump is connected to a small filter through a pipeline, and a steam port of the dryer is connected to a condenser through an air duct. The solid-liquid separation device for chemical production provided by the invention can filter solids of different particle sizes by adjusting the diameter of filter casing meshes, at the same time can dry the solids obtained by solid-liquid separation, thus improving the solid quality.
Owner:HANDAN COLLEGE

Adjustable potato harvester

The invention discloses an adjustable potato harvester, belongs to the field of agricultural machinery, and overcomes the defects of the prior art through hydraulic control and adjustment. The structure of the adjustable potato harvester mainly consists of a traction device, a rack, comprehensive adjusting oil cylinders, a stalk separating device, a second-stage soil-potato separating adjusting oil cylinder, a second-stage soil-potato separating and conveying device, a first-stage soil-potato separating and conveying device, a digging shovel, a digging shovel adjusting oil cylinder, a hydraulic oil tank and the like, wherein the comprehensive adjusting oil cylinders are located on the two sides of the stalk separating device; the second-stage soil-potato separating adjusting oil cylinder is located at the rear section of the rack, the fixed end of the oil cylinder is located on the oblique beam of the rack, and the movable end is connected with the two ends of a driving part of the second-stage soil-potato separating and conveying device; the digging shovel is located at the lower end of a front beam of the rack and connected with the first-stage soil-potato separating and conveying device; the digging shovel adjusting oil cylinder is located at the angle adjusting end of the digging shovel; and the hydraulic oil tank is located in front of the rack. The adjustable potato harvester is wide in application range and easy to operate, and the harvesting efficiency of the harvester and the product quality are improved.
Owner:LANZHOU LS ENERGY EQUIP ENG RES INST

Preparation method of methylphenylcarbamate

The invention relates to a preparation method of methylphenylcarbamate. The preparation method comprises 1, adding urea and aniline into a pre-reactor and a diphenyl urea synthesis reactor and synthesizing diphenyl urea, 2, conveying the reaction liquid into a falling film evaporator and an evaporating crystallizer through a feeding pump, separating aniline, mixing the aniline and methanol, feeding the mixture into an alcoholysis reactor, carrying out a reaction process, feeding the reaction materials into a flash evaporation pot, separating a part of methanol and aniline and separating residual methanol and most of aniline through the falling film evaporator to obtain a methylphenylcarbamate crude product, and 3, feeding the methylphenylcarbamate crude product into a scraped film type molecule distillation device and further separating the residual microscale aniline and high-boiling residues so that high purity methylphenylcarbamate is obtained and has purity greater than or equal to 99.9%. The preparation method effectively improves methylphenylcarbamate synthesis efficiency and has a product yield greater than or equal to 98.0%. The preparation method is simple and easy and provides an effective synthesis and separation method of a phenyl carbamate intermediate used in preparation of diphenylmethane diisocyanate through the non-phosgene way.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Seawater gas detection device and detection method

The invention discloses a seawater gas detection device and a detection method. The seawater gas detection device comprises a water sample collection unit, a gas-liquid separation unit and a gas detection unit; the water sample collection unit is used for introducing a water sample to be detected and pre-treating the water sample to be detected; the gas-liquid separation unit adopts the characteristic that the dissolving degree of the gas in the liquid is decreased along with the increasing of temperature and decreasing of pressure and separates the gas and liquid of the water sample to be detected in three levels by designing a water heater, a throttling device and a centrifugal gas-liquid separator, so that the gas-liquid separation degree is increased, the gas dissolved in the liquid water sample is more thoroughly separated, and the separation efficiency is higher; moreover, the water sample is high in flowing speed, and the precision of the gas detection unit for measuring the gas to be detected is greatly supported. In addition, a pressure-resisting shell is arranged outside the device, so that the device has the capacity for resisting the high pressure in deep sea and is convenient for executing the long-term, continuous and in-situ measurement task in a deep sea environment.
Owner:山东山科励睿科技有限公司

Top suction type range hood of novel oil screens

The invention discloses a top suction type range hood of novel oil screens. The top suction type range hood comprises a box body and a smoke collection panel, wherein a smoke collection opening is formed in the smoke collection panel; an upper oil screen and a lower oil screen are mounted on the smoke collection opening; the upper oil screen and the lower oil screen are convex cover bodies formed by stretching the smoke collection opening in a direction to the box body; a smoke collection concave cavity is formed in a convex cover body; the smoke collection panel is tilted, so that the convex cover bodies are obliquely mounted on the smoke collection opening; a hollow oil guide framework is mounted at the edge of the smoke collection opening; an oil guide groove matched with the edges of the oil screens is formed in the oil guide framework; the edges at lower positions of the convex cover bodies are connected to an oil receiving box; an oil guide tank is formed between two adjacent smoke suction holes; the smoke suction holes on the upper layer and the smoke suction holes on the lower layer are staggered at an upper part and a lower part, so that the smoke suction holes on the upper layer are in upper-and-lower correspondence to the oil guide tanks on the lower layer; the oil guide tanks on the upper layer are in upper-and-lower correspondence to the smoke suction holes on the lower layer. Through the oil screens of the structure, the smoke collection volume of the smoke collection groove is increased; the oil smoke storage performance of the oil screens can be improved.
Owner:SHENZHEN HUOWANG GAS APPLIANCE
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