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325results about How to "Insulate the air" patented technology

High-efficiency desulfurized active coke analysis tower and analysis method

The invention discloses a high-efficiency desulfurized active coke analysis tower and an analysis method. The analysis tower comprises a material feeding section, a preheating section, a first buffering section, an analysis section, a second buffering section, a cooling section and a material discharging section which are communicated with one another in sequence from top to bottom, wherein the preheating section, the analysis section and the cooling section are all of tube-shell type heat exchange structures; a cooling section gas inlet is formed in the lower part of the cooling section, and a cooling section gas outlet is formed in the upper part of the cooling section and is communicated with an analysis section gas inlet formed in the lower part of the analysis section; an analysis section gas outlet formed in the upper part of the analysis section is communicated with a preheating section gas inlet formed in the lower part of the preheating section; a preheating section gas outlet formed in the upper part of the preheating section is emptied; the first buffering section is provided with a material distribution and gas guide structure and an analysis gas outlet; the analysis gas outlet is connected with an acid preparation system through a fan. The invention also provides an analysis method of the analysis tower. The analysis tower is simple in structure, high in heat exchange efficiency and low in energy consumption; regeneration of desulfurized active coke is realized; furthermore, high-concentration SO2 can be obtained, and recycling of sulfur is realized.
Owner:XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD +2

Preparation method of high-performance titanium/steel bimetallic composite plate

The invention discloses a preparation method of a high-performance titanium/steel bimetallic composite plate, and belongs to the technical field of preparation of bimetallic composite plates. A pure titanium slab and a low-carbon steel slab are subjected to annealing treatment, the hardness of the slabs is reduced, and the hardness of the pure titanium slab and the hardness of the low-carbon steelslab are close; then the to-be-composited surfaces of the slabs are cleaned, degreased and ground, wherein the grinding stripe direction is perpendicular to the rolling direction; then the pure titanium slab and the low-carbon steel slab are stacked to obtain a combined slab, the head of the combined slab is riveted, the combined slab is subjected to single-pass cold rolling pre-compounding, andthen heating is carried out; and finally, single-pass hot rolling final compounding is carried out, and the high-performance titanium/steel bimetallic composite plate is obtained. The method is low inequipment requirement, short in process flow, high in production efficiency and low in production cost. The interface bonding strength of the prepared titanium/steel bimetallic composite plate is larger than 230 MPa, the area bonding rate is 100%, and the method is particularly suitable for preparation of high-performance thin titanium/steel bimetallic composite plates or thin-titanium-layer titanium/steel bimetallic composite plates.
Owner:UNIV OF SCI & TECH BEIJING +1

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

Manufacturing process of high-barrier high-strength four-layer compound packing bag

A manufacturing process of a high-barrier high-strength four-layer compound packing bag comprises the steps of printing, compounding, curing, slitting and bag-making, and particularly comprises the following steps: (1) on the basis of a traditional compound technology, a compound configuration glue is adjusted, dual-component polyurethane glue is used, and 20% of a curing agent is additionally added during glue mixing to enhance the compounding strength; and stirring is performed for 20 min by a stirrer, and standing is performed for 30 min to bring convenience for air foam in the glue to overflow, local pinholes or bubbles, which influence the strength of the packing bag, are avoided; (2) glue injection, feeding, inside and outside examination of raw material corona parts are performed according to normal operation programs in the compounding process, BOP is more than or equal to 50 dyne, PE is more than or equal to 42 dyne, the control tensions of all parts are adjusted, a 110 line gluing rail is used, and the gluing quantity is controlled to be 3.5 g/m<2> to ensure sufficient stripping strength; and (3) the PET/AL speed during compounding of a first layer is smaller than 60 m/min, and the temperatures of four areas of a drying oven is controlled to be 60 DEG C, 70 DEG C, 80 DEG C and 85 DEG C.
Owner:SHANDONG HENGDA BRAND PACKAGE CO LTD

Coiling type one-step corrosion preventing and heat preserving operating line of steel pipeline

The invention relates to a coiling type one-step corrosion preventing and heat preserving operating line of a steel pipeline. The coiling type one-step corrosion preventing and heat preserving operating line of the steel pipeline comprises a pipe feeding platform, a conveyor, an intermediate frequency preheating system, an external impeller blasting machine, a dust removal system, an intermediate frequency heating system, an epoxy powder coating system, a water spraying cooling system, a steel pipe temperature conditioning device, a spraying foaming device, a copolymer tape coiling device and an PE belt coiling device; the conveyor forwards pushes the steel pipeline to be processed on the pipe feeding platform; the intermediate frequency preheating system is positioned between the conveyor and the external impeller blasting machine and used for heating and dehumidifying the steel pipeline to be processed. The processing technical devices in the operating line overcomes part of shortages in an one-step operating line of a foam jacket heat preserving pipe in the prior art as well as the shortage of two-step manufacturing of a corrosion preventing and heat preserving pipe in the prior art, and has the advantages of being wide in applicable scope, and high in efficiency.
Owner:QINGDAO DACANG CORROSION PREVENTION CO LTD

High-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and preparation method thereof

The invention discloses a high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and a preparation method thereof. The high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is prepared from PVC resin, an organic filler, a flame retardant, a coupling agent, a foaming agent, a foaming adjuster, a composite stabilizer, a lubricant, a plasticizer, a processing modifier, a flexibilizer MBS resin and an ultraviolet absorbent. By the adoption of the MBS flexibilizer, the impact strength of a product is enhanced, and the compatibility and the processability of the product are further improved. The high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is prepared by a one-time forming process which is simple and feasible; an experiment shows that the performance of the prepared high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is much higher than that required by a common building template, can meet the standard of grade I in China on wood-plastic building templates, and can be recycled for 30 times, and wastes can be recycled and remolded to achieve the effects of recycling and zero loss; furthermore, the requirements on energy conservation and environment protection in China are met, and the PVC wood-plastic foaming composite building template has considerable economical benefits.
Owner:蒙城县欣瑞特建材有限公司

Method for preparing vinylene carbonate through micro channel reaction

ActiveCN106749155AFully contactedHigh reaction mass transfer and heat release efficiencyOrganic chemistrySecondary cellsEngineeringEthyl Chloride
The invention provides a method for preparing vinylene carbonate through micro channel reaction. The method comprises the following steps: (1) preparing equipment, including an enhanced mass transfer micro channel reactor, a metering pump I, a metering pump II and a micro filter, wherein the enhanced mass transfer micro channel reactor comprises a preheater I, a preheater II, an ultrasonic device and a micro channel module; (2) uniformly mixing chloroethylene carbonate with an ester solvent so as to obtain a mixed liquid, synchronously inputting the preheated mixed liquid and triethylamine into a micro channel, heating, mixing, performing reaction, discharging a product obtained after the reaction is completed from a discharge valve, filtering so as to obtain a crude product, and rectifying the crude product into a rectifying still, so as to obtain the vinylene carbonate, wherein the mole ratio of the chloroethylene carbonate to the triethylamine is 1:(1.5-2.0). The method is simple, convenient and safe to operate, relatively small in quantity of byproducts, small in single solvent consumption, low in moisture content, relatively high in product purity and yield, small in environment pollution and applicable to industrial large-scale production, and continuous production can be achieved.
Owner:江苏瀚康新材料有限公司

Fireproof paint, preparation method of fireproof paint and flame screen containing fireproof paint

The invention discloses a fireproof paint, a flame screen containing the fireproof paint and a preparation method of the fireproof paint. The fireproof paint is prepared from the following raw materials in parts by weight: 30 to 40 parts of dehydration catalyst, 15 to 25 parts of carbonization agent, 30 to 35 parts of foaming agent and 60 to 70 parts of binding agent. According to the flame screen, a porous metal plate or a metal wire mesh structure is utilized as a base layer, the areal density is 1 to 6.0kg / m<2>, the diameter of each mesh is 6.0 to 150.0mm, and the surface of the base layer of the flame screen is coated by the fireproof paint. In a normal use state of the flame screen, air can freely circulate among meshes of the flame screen; when fire happens, a fireproof coating on the flame screen is heated to expand to form thermal-insulation fireproof paint to plug the meshes of the flame screen, heat and smoke are prevented from freely circulating in a breathing cavity of a curtain wall, and the fire is prevented from expanding horizontally or vertically. The flame screen can be widely applied to the places needing fire protection and requiring ventilation of electric power, metallurgy, petrifaction, chemical engineering, buildings and the like.
Owner:应急管理部四川消防研究所

Aviation engine blade forging method and die

The invention provides an aviation engine blade forging method and a die. The aviation engine blade forging method comprises the following steps that firstly, a blank is discharged; secondly, a glasslubricant is sprayed to the surface of the blank; thirdly, the blank is heated to the recrystallization temperature or above, and the temperature is kept; fourthly, the blank is put into a preheated extrusion cavity of the die, rod extruding is carried out, and an extrusion rod piece is obtained; fifthly, after rod extruding is completed, the extrusion rod piece is put into a heading cavity of thedie within 4 s-6 s, heading is carried out, and a heading piece is obtained; sixthly, after heading is completed, the heading piece is put into a finish forging cavity of the die within 4 s-6 s, final forging is carried out, and a blade is obtained. Due to the fact that the extrusion cavity, the heading cavity and the finish forging cavity are formed in the same die, the time interval between rodextruding and heading and the time interval between the heading and the finish forging are extremely short, the temperature of the extrusion rod piece and the temperature of the heading piece are reduced limitedly, and in the whole forging process, only one time of heating is needed for the blank.
Owner:CHINA HANGFA SOUTH IND CO LTD

Making method of spicy fermented bean curds

The invention discloses a making method of spicy fermented bean curds. According to the making method of the spicy fermented bean curds, provided by the invention, plaster, brine and lactone are not used for making the fermented bean curds, but alkekengy is used for curdling, so that bean curds which are made by using the alkekengy for curdling are delicious in taste; besides, formed bean curd blocks and turmeric are cooked together, so that the cooked bean curd blocks are bright yellow in color, have slight elasticity, are soft, crisp and slightly tenacious, are unique in flavor, and are good in mouth feel; when the bean curd blocks are preserved, various seasonings are matched, so that the preserved bean curd blocks have the advantages of being sufficient in palatable taste, strong in fragrance and moderate in spicy taste; besides, edible sesame is used for sealing the preserved fermented bean curds so as to separate the preserved fermented bean curds from air, therefore, the fermented bean curds are prevented from oxidative deterioration, and the quality guarantee period is prolonged. The spicy fermented bean curds made by the making method provided by the invention are rich in protein, carbohydrate, unsaturated fat acid, various mineral substances, multivitamins and the like, have the efficacies of invigorating the spleen, moistening dryness and the like, and are deeply loved by the public.
Owner:XUANWEI XINGXIANG FOOD CO LTD
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