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77results about How to "Meet various requirements" patented technology

Water soluble polyvinyl alcohol fiber and its prepn and use

The present invention features that PVA of polymerization degree 500-2000 and alcoholysis degree 75-99 mol% in 100 portions is mixed with solvent mixture of dimethyl sulfoxide and water in 200-400 portions, the mixture is stirred and heated to 80-120 deg.c at -0.01--0.08 MPa pressure in a stainless steel reactor for 3-4 hr to compound the spinning solution, and the spinning solution is filtered and defoamed and used in spinning to obtain water soluble PVA fiber after post-treatment. The PVA fiber has a water solving temperature of 10-90 deg.c, strength greater than 3.5 cN / dtex, monofilament length of 1.5-10 dtex, fracture elongation of 15-30%. It may be processed into top, which may further blended with wool top, cotton, top, etc. to produce fine yarn or hollow yarn, or cut into staple fiber for producing non-woven fabric, etc.
Owner:CHINA PETROCHEMICAL CORP +2

Preparation technique of water-soluble polyvinyl alcohol fiber and application thereof

The invention relates to a preparation technique of water-soluble polyvinyl alcohol fiber and application thereof, which is characterized in that in the preparation of spinning stock solution, the mixed solvent of dimethyl sulfoxide and water is used for dissolving polyvinyl alcohol, and the weight percentage concentration is controlled to 5-25%; porous wet gel spinning is adopted, and at least 5000 holes are available; and the water soluble temperature of the obtained fiber is 20-80 DEG C. The invention shortens the dissolution time of the polyvinyl alcohol and leads the polyvinyl alcohol to be fully dissolved; and the obtained solution is good in spinnability, is capable of producing high-quality water-soluble fiber and realizes the requirement of industrialization for the yield. The water-soluble fiber obtained by the invention is used for producing long tows, or being processed into wool tops, or being blending with the wool tops, cotton slivers, hemp and other chemical fibers, and can be made into high count yarn or hollow yarn or short fiber used for non-woven fabrics, embroidered base cloth and paper making.
Owner:CHINA PETROCHEMICAL CORP +2

A remote medical monitoring and security monitoring system

The invention relates to a remote medical monitoring and security monitoring system, and aims to solve technical problems that functions of exiting monitoring systems are simplex and the systems are poor in mutual compatibility, etc. The remote medical monitoring and security monitoring system comprises an all-in-one machine, a center cloud server and a monitoring center. The all-in-one machine integrates a medical monitoring system, a regional environment monitoring system, a video monitoring system, an entrance guard system and an alarm system into one body. Data packets acquired and generated by the all-in-one machine is uploaded to the center could server in real time. The center could server receives and processes and stores data for the monitoring center to use. According to the invention, comprehensive and multi-aspect monitoring can be carried out on monitored areas. Through a cloud technology platform, management can be carried out on the plurality of monitored areas, and large scope monitoring and remote distance observation can be realized.
Owner:红寿堂养老科技有限责任公司

Multiattribute rain analogy method based on sampling device

The invention discloses a rain model method, which is characterized by comprehensively considering influence on rain by the form, the speed and the size of a raindrop, rainfall and different wind fields so as to build a real and credible rain model corresponding to different models. The rain model method belongs to the field of virtual reality. The form, the speed and the size of the raindrop, the rainfall as well as wind speed and wind direction in a scene can be obtained by sampling a great quantity of real rain by a sampling device which integrates a high-speed camera, a dynamic particle analyzer, an ombrometer and an anemoscope, and are all typed into a database. A given rain parameter required to model is matched with a parameter in a database to calculate other rain parameters which most conform to the requirement under the circumstance so as to model. According to the multiattribute rain analogy method based on a sampling device, the defect of low reliability in the traditional method is overcome, and rain with multiple physical attribute is simulated by real sampling data.
Owner:BEIHANG UNIV

Energy-saving forklift with gravity center capable of being adjusted

The invention discloses an energy-saving forklift with the gravity center capable of being adjusted. The energy-saving forklift with the gravity center capable of being adjusted comprises a forklift body which comprises a forklift main body, wheels, a work device, a driving device and a control device; the control device is connected with the work device and the driving device which is connected with the wheels; the wheels are connected with the forklift main body and comprise a first wheel set and a second wheel set; the first wheel set is provided with a hydraulic device capable of controlling the first wheel set to ascend or descend, so that the first wheel set or the second wheel set can make contact with a road surface to run; the work device comprises a goods fork and a lifting device; the forklift main body is connected with the lifting device which is connected with the goods fork; the goods fork is provided with a telescopic device which can control the stretching and shrinking length of the goods fork; the forklift main body is provided with a balancing weight which is provided with a cavity; and a balance weight object can be placed in the cavity so that the weight of the forklift body can be changed. The energy-saving forklift with the gravity center capable of being adjusted is simple in structure, convenient and practicable, and capable of widening the using range of the forklift and improving the safety of a driver.
Owner:苏州百搭王者物流技术有限公司

Printed circuit board and mixed surface treatment process thereof

The invention discloses a printed circuit board and a mixed surface treatment process of the printed circuit board. The mixed surface treatment process comprises the following procedures of the previous procedure, blue glue printing, the tin spraying procedure, the plate milling procedure, electric tests, gold deposition, silver deposition and the subsequent procedure, wherein the blue glue is printed in a silk-screen printing mode, the silk screen has the specification of 15T or 24T or 36T; an element face is first printed with the blue glue, then, baking is performed for 5 min to15 min at the temperature of 135+ / -5 DEG C; a welded face is printed with the blue glue, then, baking is performed for 25 min to 35 min at the temperature of 150+ / -5 DEG C. According to the printed circuit board and the mixed surface treatment process of the printed circuit board, the blue glue technology is creatively used for forming a selective tin spraying protection layer; particularly blue glue with two different models is used in cooperation, and the blue glue residual rate on the plate faces is reduced; the various surface treatment processes are used for the same circuit board, and therefore various product requirements can be met; cost can also be reduced, and very high economic value is achieved.
Owner:KALEX MULTI LAYER CIRCUIT BOARD (ZHONGSHAN) CO LTD

MOFs material with efficient water collection performance, preparation method of MOFs material and application of MOFs material to water extraction from air

The invention discloses an MOFs material with efficient water collection performance, a preparation method of the MOFs material and application of the MOFs material to water extraction from air, wherein the MOFs material is a frame material with one-dimensional pore channels, the structural general formula of the MOFs material is Zr3L, and L is a tetracarboxylic acid ligand with different hydrophilic functional groups; the one-dimensional hole channel comprises a triangular hole channel with the diameter and a hexagonal channel with the diameter. The material has a porous structure modified by a hydrophilic function, and still has high water absorption capacity exceeding 0.42 g <-1 > under the condition of low humidity of 20%. The material has a unique csq topological structure, shows extremely rare ultrahigh chemical stability, and provides powerful guarantee for long-term stable water collection practical application of the material. A low-boiling-point green solvent is adopted for preparation, so that use of a high-boiling-point toxic organic solvent and subsequent tedious and multi-step solvent exchange and activation processes of a traditional MOFs material are avoided. The material has very wide application potential in the field of adsorbent-based atmospheric water collection.
Owner:ZHEJIANG UNIV

Seabuckthorn Pu'er tea able to condition spleen and stomach

The invention discloses a seabuckthorn Pu'er tea able to condition spleen and stomach. The sea-buckthorn Pu'er tea comprises the following components by mass: 10-20 parts of Pu'er tea, 1-3 parts of seabuckthorn tea, 1-3 parts of dried seabuckthorn fruit, 2-4 parts of seabuckthorn oil, 3-5 parts of Codonopsis pilosula, 1-3 parts of dried tangerine peel, 0.5-1 part of Salvia Miltiorrhiza, 0.5-1 part of malt, and 0.5-1 part of accessories. The seabuckthorn Pu'er tea able to condition spleen and stomach contains Codonopsis pilosula, dried tangerine peel, Salvia Miltiorrhiza, and malt. The spleen and stomach provide the material basis of the acquired constitution, and are the sources of qi and blood, qi deficiency of spleen and stomach, weak receiving and normal functioning, and endogenous turbid dampness can generate phlegm and turbidity, phlegm-turbidity can conglomerate into stasis, and Codonopsis pilosula can replenish qi and invigorate spleen, regulate lipid and dissolve turbidity, dried tangerine peel can tonify spleen and eliminate dampness, reinforce the efficacy of tonifying qi and promoting functioning, invigorate spleen and regulate qi, dissolve turbidity and remove freckle, Salvia Miltiorrhiza can assist spleen invigorating and stomach harmonizing, blood circulation activating and turbidity dissolving, and malt can harmonize stomach, help digestion, promote qi circulation and dissipate blood stasis. After drinking the seabuckthorn Pu'er tea provided by the invention for a long term, lipid turbidity, obesity, hyperlipoidemia, atherosclerosis, atherosclerotic plaques and other symptoms in modern people can be alleviated.
Owner:赵蔚风

Seed agent stirring machine for planting industry

The invention discloses a seed agent stirring machine for planting industry. The seed agent stirring machine comprises two fixing brackets, horizontal plates are arranged between the two fixing brackets, both ends of the horizontal plates are respectively and fixedly connected to the symmetrical side surfaces of the two fixing brackets, bearings are respectively embedded on one side surfaces of each horizontal plate, the inner ring of the bearing is fixedly connected to a first shaft body, the left end of the first shaft body is fixedly connected to a forward rotation motor, one end, away fromthe forward rotation motor, of the first shaft body is fixedly connected to a rotation plate, one side surface, away from the first shaft body, of the rotation plate is fixedly connected to a rotation drum, the right side surface of the rotation drum is provided with a through hole, a second shaft body adapted to the through hole is arranged inside the through hole, one end of the second shaft body sequentially penetrates through the bearing and the through hole and extends into the rotation drum, and one end, extending into the rotation drum, of the second shaft body is fixedly connected toa spiral fin. According to the present invention, the seed agent stirring machine has advantages of high efficiency and uniform stirring, and can meet the simultaneous use of the aqueous agent and thepowder agent.
Owner:朱德仲

Ultra-pure methane chloride production system and process

The invention discloses an ultra-pure methane chloride production system which comprises a reaction system for producing methane chloride by a methanol gas-phase hydrochlorination dry method and a carbon tetrachloride conversion reaction system. The two systems are sequentially connected with a sulfuric acid drying system and a methane chloride rectification system to obtain a methane chloride finished product; the sulfuric acid drying system is further connected with a compressor, and a gas outlet of the compressor is connected with a top gas outlet of the methane chloride rectification system to be mixed into a reaction system for producing methane chloride from crude methane chloride to methane chloride through a gas-phase thermal chlorination method. With a reaction system for producing methane chloride through the methane chloride gas phase thermal chlorination method, obtained mixed gas obtained after methane chloride and chlorine react sequentially enters a steam generation system, a chiller III, a condensation separation system, a dehydrogenation system, a dichloromethane refining system, a trichloromethane refining system and a carbon tetrachloride refining system. The system provided by the invention realizes full-process coupling energy conservation, energy conservation and emission reduction, the condition of single product proportion is changed, and free adjustmentof the proportion of the whole series of products and composite dehydration of the whole system are realized.
Owner:高永宝

Sand and powder separation system

ActiveCN108704849ALow stone dust contentLow stone powder contentGas current separationSeparation technologyEngineering
The invention discloses a sand and powder separation system and belongs to the technical field of sand and powder separation. The sand and powder separation system comprises a sand and powder separator, a blower and an induced draft fan, wherein the sand and powder separator is formed by splicing a rectangular box body and an arc-shaped box body; the tail end of the rectangular box body is connected to an air outlet of the blower through an inlet air guide pipe; a sand feeding opening is formed in the inlet air guide pipe; a choke plate is arranged on the side, close to the blower, of the sandfeeding opening; a coarse sand discharge opening and a medium sand discharge opening are formed in the bottom of the rectangular box body; an outlet of the arc-shaped box body is connected to an induced draft opening of the induced draft fan; and a first fine sand discharge opening is formed in the position, close to the rectangular box body, of the bottom of the arc-shaped box body. The sand andpowder separation system separates sand from powder in the sand and powder separator through the blower and the induced draft fan; and owing to a special shape structure of the sand and powder separator, the content of stone powder in the sand is less than 4%, the content of stone powder in a building material that is produced by taking the sand as a raw material is less, and the quality of the building material is more stable.
Owner:资阳广维智能装备有限公司
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