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171results about How to "No need to use" patented technology

Polymeric phosphorus-containing flame retardant with DOPO as lateral group and preparation method thereof

The invention discloses a polymeric phosphorus-containing flame retardant with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as a lateral group and a preparation method thereof. The preparation method is characterized by comprising the following steps: placing aromatic dihydric phenol and pentaerythritol diphosphate diphosphoryl chloride (or bromine) which are modified by the 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide in an anhydrous acetonitrile solvent based on reaction mol ratio, heating the obtained mixture to 80 DEG C in an inert atmosphere, agitating and reacting until no halogen hydride is released, cooling the obtained mixture to the room temperature, and depressurizing the mixture to remove the solvent. The obtained product has high phosphorus content, very good expansibility and char formation, and good flame retardation effect. When flame retardation is performed on epoxy resin, the limiting oxygen index of the obtained product is greatly improved and the vertical burning scale reaches V-0 level; and the polymeric phosphorus-containing flame retardant has the advantage of overcoming the disadvantages of low thermal decomposition temperature, poor compatibility with polymer matrix and easy migration in the existing micromolecular phosphorus flame retardants. The preparation method has the advantages of being simple and feasible, using no catalyst and simple post-treatment process.
Owner:UNIV OF SCI & TECH OF CHINA

Boiler fly ash ignition carbon measuring device

The invention discloses a boiler fly ash ignition carbon measuring device, which comprises a sample feeding component, an ignition component, a transmission component, a sample weighing component, a sample discharge component and a crucible supporting plate. Crucible holes are arranged on the crucible supporting plate; the center of the crucible supporting plate is fixed to the top end of a pull rod passing through a station platform; a synchronizing wheel is arranged on the pull rod disposed between the crucible supporting plate and the station platform; a transposition motor fixed under the station platform is connected with the synchronizing wheel via a synchronizing belt; a sample feeding station, an ignition station, a sample weighing station and a sample discharge station are sequentially arranged on the station platform; the sample feeding component, the ignition component and the sample discharge component are respectively positioned above the sample feeding station, the ignition station and the sample discharge station; and the sample weighing component is positioned below the sample weighing station. By installing an electric scale below the station platform, the carbon measuring device enables the length of a weighing rod to be shortened heavily, enables the anti-vibration capability of the weighing rod to be strengthened greatly, and then improves measurement accuracy. Additionally, the crucible supporting plate is a strip-shaped plate with two through holes capable of holding a crucible, has simple structure, small rotation inertia, and is favorable for controlling accuracy of rotation.
Owner:南京大得科技有限公司

Treatment method of oil-containing sludge

The invention discloses a treatment method of oil-containing sludge and belongs to the field of environmental engineering. The treatment method comprises the following steps of: introducing the oil-containing sludge into a separating groove, discharging into a deemulsifying groove for deemulsification after initially separating, and carrying out oil-water-sludge separation on deemulsified productsin an oil-sludge separating device; recovering dirt oil at the upper part, settling sludge-water mixture at the lower part, recovering clear liquor, and carrying out coagulation treatment, settling separation, mechanical dewatering, sludge drying and sludge incineration treatment in sequence on the sludge-water mixture at the bottom part and residual active sludge. Composite deemulsifying agentspreferred by the invention include a polyethylene polyamine blocked polyether deemulsifying agent, a silicon-containing deemulsifying agent, a phenolic-resin deemulsifying agent, an alkylphenol polyoxyethylene ether deemulsifying agent, a polyphosphoester deemulsifying agent or a polyaluminium-chloride deemulsifying agent. The deemulsifying method disclosed by the invention has the beneficial effects that the safe and environment-friendly effects are achieved, the water content of oil sludge can be reduced, most crude oil in the oil sludge can be recovered, and the difficulty of the followingtreatment of the sludge can be reduced.
Owner:YANGZHOU DAYANG WATER SUPPLY EQUIP

Long-chain-thioether-bond-containing mesoporous organic-inorganic hybrid ball of core-hollow-shell structure and preparation method thereof

The invention discloses a long-chain-thioether-bond-containing mesoporous organic-inorganic hybrid ball of a core-hollow-shell structure and a preparation method thereof. The hybrid ball comprises a mesoporous ball skeleton, wherein the mesoporous ball skeleton contains a long-chain functional organic group-thioether bond and has the core-hollow-shell structure, uniform adjustable particle diameter, radial ordered mesopores and large specific surface area and pore volume. The preparation method comprises the steps of adding tetraethyl orthosilicate and bi-[3-(triethoxy silicon) propyl] tetrasulfide into a mixed solution of ethanol containing surfactant and ammonia and water, so as to prepare a solid ball containing the thioether bond, then etching off the middle layer of the solid ball in a water solution under the conditions of high temperature and high perssure, and removing the surfactant, so as to obtain a final product. The long-chain-thioether-bond-containing mesoporous organic-inorganic hybrid ball has great application potentials in the fields of drug delivery, bioimaging and the like, the synthetic method is simple and convenient, and the defect that a silicon-based solid ball which contains the long-chain organic group cannot be changed into a yolk-eggshell mechanism under the conditions of low temperature and normal pressure is overcome.
Owner:NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A

Portable real-time force measuring device capable of being detached freely

The invention relates to a portable real-time force measuring device capable of being detached freely. The portable real-time force measuring device comprises a base, wherein a force measuring sensor is arranged in the middle of the upper end of the base, and is connected with a digital signal acquiring instrument through a wire; a sensor protecting cover covers the middle of the base and is divided into an upper half protecting cover and a lower half protecting cover; after the upper half protecting cover and the lower half protecting cover are mounted oppositely, two sides of the upper half protecting cover are locked with two sides of the lower half protecting cover through a plurality of bolts; a hole is formed in the upper half protecting cover; the wire penetrates in the hole; and butterfly clasps are respectively arranged at two ends of the base. By using the portable real-time force measuring device capable of being detached freely, airplane holding force on a ship and an ultra-large floating structure can be measured, and a basis is provided for designing and improving a holding cable. Moreover, the device can also be used for measuring traction force of an automobile, balloon/airship holding force and tensile force limited by tensile strength and the size and the range of a testing machine in real time, and can also be used for a stretching ultimate strength test.
Owner:中国船舶重工集团公司第七〇二研究所

Outdoor anti-exposure flowerpot

The invention discloses an outdoor anti-exposure flowerpot. The flowerpot comprises a shell and a first anti-exposure mechanism, wherein a placing tank is formed in the upper end of the shell, a pot body used for sliding up and down is arranged in the placing tank, an annular sliding groove is formed in the upper end of the shell and positioned in the outer side of the placing tank, a liquid collecting cavity is formed in the inner wall of the shell, and the liquid collecting cavity is positioned between the placing tank and the annular sliding groove; the first anti-exposure mechanism comprises an annular heat collecting plate arranged on the outer side wall of the shell, two thermoelectric power generation pieces are symmetrically embedded in the inner walls of the two sides of the placing tank, the hot ends of the two thermoelectric power generation pieces make contact with the inner side of the annular heat collecting plate, and an electrifying coil is embedded in the inner bottomof the placing tank. The flowerpot can effectively prevent sun exposure to plants, meanwhile, roots of the plants are watered in high-temperature weather, the situation that the plants die due to water shortage is prevented, manual operation is not needed in the whole process, and the use of manpower is greatly reduced.
Owner:樊玉香

Pulse control method and device thereof, ablation equipment, system and storage medium

The provides a pulse control method and a device thereof, ablation equipment, a system and a storage medium. The pulse control method comprises the following steps: outputting a nanosecond pulse sequence and a millisecond pulse sequence to a target biological tissue; the amplitude of the nanosecond pulse sequence is larger than the threshold voltage, and the amplitude of the millisecond pulse sequence is smaller than the threshold voltage. According to the embodiment of the invention, the nanosecond pulse sequence with the amplitude greater than the threshold voltage cooperates with the millisecond pulse sequence with the amplitude less than the threshold voltage, such as the synergistic effect of the high-voltage nanosecond pulse sequence and the low-voltage millisecond pulse sequence, so that the effective ablation range can be enlarged, the ablation is more thorough, the muscle contraction amplitude can be effectively reduced, or the muscle contraction probability is reduced, even the muscle contraction phenomenon is avoided, the treatment experience feeling of a patient can be improved, and the use of anesthetics can be reduced or even not needed, so that the treatment cost is effectively reduced, and side effects are reduced.
Owner:HANGZHOU WKNIFE MEDICAL TECH CO LTD

Crane bearing mechanism

The invention discloses a crane bearing mechanism. The crane bearing mechanism comprises supporting arms, a component opening is formed in one end of each supporting arm, a swing arm is rotationally installed in each component opening, a hanging supporting rod is rotationally connected with each supporting arm, a plurality of hanging buckle openings are formed in the surface of each hanging supporting rod, a hanging buckle block is fixedly connected with each swing arm, a positioning table is fixedly connected with each supporting arm, and each positioning table is of a U-shaped structure; a main cross beam is arranged in notches of the positioning tables, a guide rail opening is formed in the surface of the main cross beam, a guide rail sealing plate is arranged in the guide rail opening,and springs are fixedly connected with the two ends of the guide rail sealing plate; and locking pins are fixedly connected with the tail ends of the springs, the guide rail sealing plate is insertedand fixed in a pin opening in the main cross beam through the locking pins at the tail end of the springs, and driving wheels are arranged on guide rail grooves in the guide rail opening. According to the crane bearing mechanism, by means of the folding structure, the parts on the bearing mechanism are used for mutually restricting the fixing positions, installation is more convenient, other auxiliary installation parts do not need to be used, and management is convenient.
Owner:安徽省雄峰起重机械有限公司

Method for preparing compounded brassinolide plant growth regulator easy to degrade

The invention discloses a method for preparing a compounded brassinolide plant growth regulator easy to degrade, and belongs to the technical field of preparation of plant growth regulators .Rape pollen and agar weeds are mixed in a hydrochloric acid solution to be soaked, pretreatment mixed powder is prepared for use, a hypha suspension liquid is prepared from the pretreatment mixed powder, a nutrient solution and a waste edible mushroom culture medium for mixed fermentation, an extrusion solution is obtained through extruding and mixed with ethyl acetate, and a base solution of the compounded brassinolide plant growth regulator easy to degrade is obtained through centrifugation and concentration; the base solution, filterable matter obtained through enzymolysis and filtering and sodium potassium tartrate tetrahydrate are mixed and react, discharging and filtering are carried out to obtain filterable matter, and the compounded brassinolide plant growth regulator easy to degrade is prepared .The method has the advantages that the preparation steps are simple, no organic solvent is needed, the preparation process is free of pollution to the environment, and the cost is lower than that of other methods by 18% or above; the product yield is higher than that of other methods by 13.2% or above, and the purity is higher than that of other products by 20.3% or above.
Owner:袁春华
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