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65results about How to "Easy to promote and use in industrialization" patented technology

Clean electrospinning method

The invention provides a clean electrospinning method, which comprises, on each drafting assembly of a ring spinning frame, drafting rove by the drafter of the ring spinning frame to output strands from a front roller, entering a twisting triangular zone, twisting, injecting spinning liquid into a capillary spinneret via a liquid flow controller, connecting the spinning liquid to a positive electrode of a high-voltage power source, connecting a polar plate to a negative electrode of the high-voltage power source, forming a high-voltage electric field between the capillary spinneret and the polar plate, stretching the spinning liquid extruded from the capillary spinneret into microscale or nanoscale fine filaments under the action of the high-voltage electric field, twisting the fine filaments with the strands together in the twisting triangular zone, winding on a yarn bobbin via a guide and a traveler, and making into yarn. The capillary spinneret and the liquid flow controller are arranged at the upper inclined side of the triangular zone, and the grounding polar plate is arranged under the triangular zone. The method provided by the invention can decrease hairiness of the yarn, improve strength of the yarn, and lower cost, and is suitable for fields of cotton spinning, flax spinning, wool spinning and silk spinning.
Owner:HUBEI FENGSHU THREAD MFG

Leaf surface resistance and control agent for blocking heavy metal accumulation and preparation method thereof

The invention discloses and provides a leaf surface resistance and control agent for blocking heavy metal accumulation and a preparation method thereof. The leaf surface resistance and control agent is prepared from the following components in parts by weight: 1-3 parts of borax, 5-9 parts of nano silicon dioxide, 10-17 parts of carbon nano tubes, 5-8 parts of a surfactant, 18-31 parts of tea seedcake, 7-9 parts of dunaliella, 13-22 parts of flammulina velutipes fungus chaff, 3-5 parts of betel nut tree sawdust, 9-13 parts of a microbial agent, 3-4.5 parts of orange peel powder, 8-13 parts ofdistillers' grains, 7-10 parts of artemisia apiacea leaves, 25-43 parts of tea saponin, 1-3 parts of citric acid, 12-28 parts of amino acids, 6-11 parts of humic acid and 1000-1500 parts of deionizedwater. The leaf surface resistance and control agent prepared from the raw materials can prevent plants from absorbing heavy metals in air and soil and prevent the heavy metals from damaging the plants. Meanwhile, according to the preparation method of the leaf surface resistance and control agent for blocking heavy metal accumulation, effective components in the raw materials can be fully utilized, and the method is easy to operate and beneficial to industrial promotion.
Owner:武汉市秀谷科技有限公司

Multi-section acid leaching, washing and pressure filtration metal extraction process and integrated device thereof

ActiveCN103343223AAvoid cloggingAvoiding the Problem of Contaminating Diaphragm Filter Press ClothsProcess efficiency improvementInlet channelSlag
The invention discloses a multi-section acid leaching, washing and pressure filtration metal extraction process. The multi-section acid leaching, washing and pressure filtration metal extraction process comprises the following steps of: pressurizing and injecting a metal acid leaching solution into a filter chamber of a diaphragm filter press to get a filter cake, and pre-pressing the filter cake at 0.2MPa-0.6MPa; performing two-section acid leaching on the filter cake by two-section acid under a pre-pressed state; continuously washing the filter cake subjected to acid leaching by a one-section washing solution under the pre-pressed state; introducing gas below 70 DEG C to one side of the washed filter cake for gas blowing under the pre-pressed state; introducing gas into a material inlet channel for back blowing under the pre-pressed state after the gas blowing is ended; and performing high-pressure pressure filtration on substances in the filter chamber after the back blowing is ended, and unloading slag. On the basis, the invention further discloses a device for the process. The process and the device are used for extracting metal compounds from ore in a wet electrolytic industry.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Catalyst applied to medium-pressure liquid-phase hydrogenation of fatty acid methyl ester for preparation of fatty alcohol

The invention discloses a catalyst applied to medium-pressure liquid-phase hydrogenation of fatty acid methyl ester for preparation of fatty alcohol. The catalyst consists of the following components (in percentage by weight): 10 to 60 percent of copper oxide, 5 to 40 percent of zinc oxide and 0 to 80 percent of alumina. According to the catalyst applied to medium-pressure liquid-phase hydrogenation of the fatty acid methyl ester for preparation of the fatty alcohol, the copper oxide is a main catalytic active component, the zinc oxide is a catalyst promoter component, and alumina is either a catalyst promoter component or a carrier. Each component synergistically acts to achieve high catalytic activity, high selectivity and high stability. Moreover, the catalyst applied to medium-pressure liquid-phase hydrogenation of the fatty acid methyl ester for preparation of the fatty alcohol contains fewer types of components, and each component has less influence and pollution to the environment, so that good environmental benefits are created. The catalyst applied to medium-pressure liquid-phase hydrogenation of the fatty acid methyl ester for preparation of the fatty alcohol is very applied to a process for catalytically hydrogenating the fatty acid methyl ester to prepare the fatty alcohol, is suitable to be industrially popularized and applied, and has broad industrial application prospect.
Owner:南京博明科技有限责任公司 +2

Multifunctional filling non-woven cloth and manufacturing method thereof

InactiveCN106048884AGood warmth retentionImproves warmth and elasticityPattern makingDigestive systemHoneycombAirflow
The invention relates to a multifunctional filling non-woven cloth which comprises a surface fiber web, an upper bonding fiber web, a middle fiber web, a lower bonding fiber web and an inner fiber web sequentially from top to bottom, wherein the middle fiber web is honeycomb cotton formed by carding webs and vertical laying the webs, the surface fiber web and the inner fiber web are fiber webs formed by carding or air laying webs and intersecting laying the webs, the upper bonding fiber web and the lower bonding fiber web are fiber webs formed by carding or air laying short fiber with low melting points, lavender fills in grooves carved in the upper surface of the middle fiber web, and uniformly distributed thin magnets are embedded in the lower surface of the middle fiber web. The finished product is made through steps of preparing fiber webs, fibre web grooving, embedding thin magnets, compositing fiber webs, drying, cooling, filling lavender and reeling. The multifunctional filling non-woven cloth has the advantages of good warmth retention and elasticity performance and can bear relatively large horizontal pulling force. The multifunctional filling non-woven cloth has medicinal anti-bacteria and magnetic therapy functions and is easy for popularization and application.
Owner:WUHAN TEXTILE UNIV

Deep hole blasting charging hole sealing device and using method thereof

The invention provides a deep hole blasting charging hole sealing device and a using method thereof. The deep hole blasting charging hole sealing device comprises a blasting tube, a detonating cord, an electric detonator, a hole sealing bag, a grouting tube and an exhaust slurry return tube; the blasting tube comprises a plurality of pipeline units which are tightly connected end to end; the detonating cord is arranged in the blasting tube; the electric detonator is located at one end of the detonating cord at the tail part of the blasting tube and is connected with the electric detonator; thehole sealing bag comprises a first hole sealing bag and a second hole sealing bag, and a grouting area is formed in a space between the first hole sealing bag and the second hole sealing bag; one endof the grouting tube penetrates through the second hole sealing bag and is inserted into the first hole sealing bag through the grouting area; and one end of the exhaust slurry return tube penetratesthrough the second hole sealing bag and enters the grouting area. The deep hole blasting charging hole sealing device is convenient to construct and operate, time-saving, labor-saving, low in cost, capable of greatly improving the construction efficiency, and high in hole sealing quality and safety, normal initiation is ensured, and blasting punching and blown-out shot are avoided.
Owner:河南力行科创矿山技术开发有限公司

Ultrahigh molecular weight polyethylene fiber flat wire and preparation method thereof

The invention belongs to the technical field of composite materials, and discloses an ultrahigh molecular weight polyethylene fiber flat wire and a preparation method thereof. The preparation method comprises the steps of adding ultrahigh molecular weight polyethylene powder and an additive into a solvent to prepare suspension mixed liquid, heating for swelling at the temperature of 100-150 DEG C, then injecting the product into a twin-screw extruder for extruding, and cooling to form a primary gel fiber; pressing the primary gel fiber by using a press roller, and forming a ribbon silk having a pit structure so as to obtain a primary flat silk fiber; prestretching and winding the obtained primary flat silk fiber, then extracting, drying and carrying out super multiple thermal drawing to obtain the ultrahigh molecular weight polyethylene fiber flat wire. According to the preparation method, the pit structure is pressed on the surface of the ultrahigh molecular weight polyethylene fiber flat wire by means of the press roller, i.e., a mechanical method, so that the adhesive property of an ultrahigh molecular weight polyethylene fiber surface is improved; the ultrahigh molecular weight polyethylene fiber flat wire is simple and environmental-friendly in preparation technology, easy in control of production process and low in requirements for production equipment, thus being easy in industrial popularization and use.
Owner:SOUTH CHINA UNIV OF TECH

Production method of breathable melt-blown nonwoven fabrics

The invention discloses a production method of breathable melt-blown nonwoven fabrics, which is used for producing polymer superfine fibers by means of well-known melt blowing. The method is characterized in that an electrostatic flocking box is arranged between a melt-blowing die head and a receiving device, superfine fibers pass through the electrostatic flocking box to be adhered with short fibers which perpendicularly fly down in the electrostatic flocking box under the action of an electrostatic field, and breathable melt-blown nonwoven fabrics are formed when the superfine fibers and the short fibers reach the receiving device. The polymer is one of polypropylene, polyester, polybutylene terephthalate, polytrimethylene terephthalate or mixture of the above materials. The short fibers are highly moisture absorbable, 2-20 micrometers in diameter and 3-15 micrometers in length, adding amount of the short fibers accounts for 5-30% of the total weight of the breathable melt-blown nonwoven fabric, and the short fibers are provided by a feeding mechanism. The flocking output voltage of the electrostatic flocking box ranges from 20KV to 60KV, the distance between the melt-blowing die head and the electrostatic flocking box ranges from 10cmm to 40cm, and the distance between an upper pole plate and a lower pole plate in the electrostatic flocking box ranges from 30cmm to 50cm.
Owner:TIANJIN POLYTECHNIC UNIV

Method for recovering noble metal from gold and silver converter waste magnesium brick

The invention relates to the technical field of noble metal recovery, in particular to a method for recovering noble metal from a gold and silver converter waste magnesium brick. The method comprises the working procedures of grinding a waste magnesium brick sample, performing flotation, performing gravity concentration on flotation tailings, performing flotation, performing gravity concentration, removing magnesium through hydrochloric acid, and the like. The problems that the concentrate cannot be fed into a furnace because of high magnesium content of the concentrate and the recovery rate is high when a gravity concentration method is singly used are solved; the problems that the concentration ratio of the concentrate is not high, the using amount of sulfuric acid is large, and leaching residue is difficultly filtered when a sulfuric acid leaching process is singly used are also solved. The magnesium oxide in the concentrate can be removed to the greatest degree by the method, the high-quality gold and silver concentrate is obtained, the gold recovery rate is more than 99 percent, the silver recovery rate is more than 98 percent, and the removing rate of magnesium oxide can be up to over 98 percent. The recovery rate is obviously higher than that of the other processes, the processing cost is relatively low, and the method is convenient to industrially popularize and use.
Owner:NORTHWEST RES INST OF MINING & METALLURGY INST

Transmission shaft connecting flange shock-absorbing protection device

The invention provides a transmission shaft connecting flange shock-absorbing protection device. The transmission shaft connecting flange shock-absorbing protection device includes a shock-absorbing disc, connecting discs, and shock-absorbing connectors; a through hole is arranged on the shock-absorbing disc, and a shock-absorbing spring is installed in the through hole; two connecting discs are arranged, and the two connecting discs are arranged oppositely above and below the shock-absorbing disc, which are a first connecting disc and a second connecting disc; a ball head hole is arranged oneach connecting disc; the two connecting discs are used for connecting a transmission shaft and a reducer; two shock-absorbing connectors are arranged, which are arranged oppositely along the two sides of the shock-absorbing disc; each shock-absorbing connector is arranged between the shock-absorbing disc and the connecting disc; one end of the shock-absorbing connector is installed in the ball head hole of the connecting disc, and the other end is installed in the through hole of the shock-absorbing disc, so as to be used for shock absorption by cooperating with a shock-absorbing spring; andthe shock-absorbing connectors are also connected to the shock-absorbing disc for transmitting torque. The transmission shaft connecting flange shock-absorbing protection device has a good shock-absorbing effect, can improve the operation stability and service life, has a simple structure, is convenient to install, and is convenient for industrialization promotion and use.
Owner:SHANDONG IRON & STEEL CO LTD
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