32results about How to "No processing costs" patented technology

The invention belongs to the field of photocuring materials and relates to a clean production method of alkoxylation glycerol triacrylate. The method comprises the following steps that: (1) ethoxylation glycerol/propoxylation glycerol, acrylic acid, catalysts, solvents, polymerization inhibitors and antioxidants are subjected to esterification backflow dehydration; (2) soda flakes and a small quantity of water are added for neutralization; (3) magnesium polysilicate absorbing agents are added for absorbing salt generated during the neutralization; (4) the pressure reduction dehydration is carried out, and solvents are removed; (5) press filtering is carried out, and the magnesium polysilicate and the salt absorbed by the magnesium polysilicate are filtered away; (6) alkaline calcium bentonite and calcium bentonite are added, and decoloration, trace moisture removal and trace acid removal are carried out; (7) press filtering is carried out; and (8) product index detection is carried out. The method belongs to the high-yield clean production method of the ethoxylation glycerol triacrylate and propoxylation glycerol triacrylate and has the advantages that economic benefits and environment benefits are realized, and the problem of organic waste water pollution in the production process of the ethoxylation glycerol triacrylate and the propoxylation glycerol triacrylate is fundamentally solved.

The invention belongs to the field of photo-curing material, and relates to a cleaning production method for di-trimethylolpropane tetra-acrylic ester or pentaerythritol tetra-acrylic ester. The method specifically comprises the following steps of: (1) dehydrating di-trimethylolpropane/pentaerythritol, crylic acid, catalyst, solvent, polymerization inhibitor and antioxygen by means of esterification and backflow; (2) adding sheet alkali and a small quantity of water to neutralize; (3) adding magnesium polysilicate adsorbent to adsorb and neutralize the generated salt; (4) dehydrating in a pressure reducing way, and removing solvent; (5) carrying out filter pressing, filtering out the magnesium polysilicate and salt adsorbed by the magnesium polysilicate; (6) adding alkaline calcium bentonite and calcium oxide, to remove color, trace moisture and trace acid; (7) carrying out filter pressing; and (8) detecting the indexes of a product. The invention belongs to a cleaning production method for the di-trimethylolpropane tetra-acrylic ester or the pentaerythritol tetra-acrylic ester, which is good in economic benefit and environmental benefit, so that the problem of organic waste water pollution when the di-trimethylolpropane tetra-acrylic ester or the pentaerythritol tetra-acrylic ester is produced can be basically solved.

The invention discloses a shielding film which prevents the grounding conductor of the substrate being the adhering object of the shielding film from revealing and facilitates the grounding, a shielding distribution board which uses the shielding film and possesses a shielding function and resistance control function through one step, and the grounding method of using the shielding film. The shielding film (20) which is connected to a conducting member (30) by means of heating and pressurization is composed by resin whose melting point is higher than the heating temperature. The shielding film (10) comprises a covering film (25) which forms a layer thickness (L1) that is thinner than the average protruding length (L2) of the conducive particle (35) protruding from a conductive bonding layer (33), a metal film layer (24) which stacks on the covering film (25) in order and a bonding layer (23).

The invention discloses a method for embedding a thin plate metallographic sample. The method comprises the following steps: binding a thin plate test sample to an old test sample, which is higher than the thin plate test sample, through an adhesive tape or glue; putting the overall bound test samples into a hot embedding machine, and feeding a proper amount of embedding resin for sample embedding. According to the method, the thin plate test sample with a flat smooth surface can be successfully embedded; meanwhile, the method is low in cost and easy to operate.

The invention relates to an energy-saving recovery technology of DMAPA. The technology has the characteristics of energy consumption reduction, environmental protection benefiting, easy equipment making, and low production cost. A technical scheme adopted in the invention is characterized in that the energy-saving recovery technology of the DMAPA sequentially comprises the following steps: 1, allowing a DMAPA-water mixed solution from a condenser to enter a separator through a pipeline, adding a water removal agent through a feed inlet, stirring, and allowing the obtained mixture to stand for layering, wherein the addition amount of the water removal agent is 10-90% of the weight of the DMAPA-water mixed solution; 2, conveying the supernatant obtained in step 1 to a distillation kettle through a pipeline, carrying out reduced pressure distillation at a temperature of 60-140DEG C under a relative pressure of 0MPa - -0.085MPa, and collecting the obtained distillation condensate which is the DMAPA; and 3, discharging the lower-layer liquid obtained in step 1 from the material outlet at the bottom of the separator, wherein the lower-layer liquid is the aqueous solution of the water removal agent.

The invention belongs to the field of photo-curing materials, and relates to a pollution-free production method of lauryl alcohol acrylate, hexadecanol acrylate or stearyl alcohol acrylate. The production method comprises the specific steps as follows: (1) carrying out esterification, refluxing and dehydration on lauryl alcohol/hexadecanol/stearyl alcohol, acrylic acid, a catalyst, a solvent, a polymerization inhibitor and an antioxidant; (2) adding flake caustic soda and a small amount of water for neutralizing; (3) adding magnesium silicate adsorbent to adsorb salt generated by neutralizing; (4) decompressing to dehydrate and desolventize; (5) carrying out filter pressing to filter out magnesium silicate and the adsorbed salt; (6) adding alkaline Ca-bentonite and calcium oxide for decolouring, and removing trace water and acid; (7) carrying out filter pressing; and (8) detecting the product index. The invention provides the pollution-free production method of lauryl alcohol acrylate, hexadecanol acrylate or stearyl alcohol acrylate, which has high yield as well as economic and environmental benefits, and fundamentally solves the problem of organic wastewater pollution in the production process of lauryl alcohol acrylate, hexadecanol acrylate or stearyl alcohol acrylate.

The invention relates to the technical field of resource utilization of waste textiles and fiber-reinforced composite materials, and discloses a straw biomass fiber-plastic composite material comprising organic straw biomass fibers, textile fibers, plastic and auxiliary materials, and formed by compounding the components in percentage by weight: 40%-60% of the total fibers, 25%-45% of the total plastic, and the balance being the auxiliary materials. Through a specific formula, the optimal composite state of the textile fibers and the plastics is realized, and the composite material has better strength and hardness.

The invention discloses a method and device for reducing oil mist leakage of an airtight machining chamber. After a tool inside the airtight machining chamber of a numerical control machine tool or aCNC machining center stops rotating, and before a part taking door is opened, a device with changeable volume is taken for use, the device with changeable volume is enlarged in volume to generate negative pressure inside so as to suck oil mist from the inside of the airtight machining chamber and stores the oil mist inside temporarily, and then less oil mist leaks out of the airtight machining chamber while the part taking door is open; and after a machined part in the airtight machining chamber is taken away, a worker places a raw material to be machined well, and the part taking door is closed, the device with the changeable volume discharges the oil mist stored inside out, the oil mist flows back into the airtight machining chamber, then the whole cycle of oil mist suction and backflowis completed, and it is implemented that the oil mist is transferred while the part taking door of the machining chamber is open. The device for reducing oil mist leakage of the airtight machining chamber is composed of an oil mist collection port, an oil mist collection pipe, an oil mist buffer, an oil mist backflow pipe and an oil mist backflow port. According to the method and device for reducing oil mist leakage of the airtight machining chamber, because the oil mist is temporarily transferred but not purified locally, and oil mist leakage while the part taking door of the machining chamber is open is reduced with relatively low cost.

The invention discloses a method for reducing the nickel content in bicarbonate mineral water of Wudalianchi, and relates to a method for removing nickel in water. The invention aims to solve the problem that the existing water treatment technology is mostly applied to sewage and is not suitable for reducing nickel in mineral water. The method comprises the following steps: immersing activated carbon into a nitric acid solution to obtain modified activated carbon; and adding the modified activated carbon into the bicarbonate mineral water of the Wudalianchi for adsorption to obtain the nickel-removed bicarbonate mineral water of the Wudalianchi. When the method is used for removing the nickel in the bicarbonate mineral water of the Wudalianchi, the removal rate of the nickel can reach 13.81%. The method is suitable for removing nickel in the bicarbonate mineral water of the Wudalianchi.

The invention provides a projection lamp assembly and relates to the technical field of lamps. The projection lamp assembly comprises a plurality of lamp bodies, a telescopic bracket, a plurality of connecting blocks and a plurality of fixing bolts; the plurality of lamp bodies are connected with the bracket; each lamp body comprises a front shell and a rear shell; each front shell and the corresponding rear shell are fixedly connected to form a cuboid-shaped lamp body; first threaded holes are formed in the four edges of each rear shell correspondingly; second threaded holes are formed in thetwo ends of each connecting block; the fixing bolts penetrate through the first threaded holes and the second threaded holes, so that the connecting blocks are fixedly connected with the rear shells;and the two ends of each connecting block are fixedly connected with the rear shells of the adjacent lamp bodies correspondingly. Through the arrangement of the projection lamp assembly, multiple projection lamps can be fixedly connected, the number of the projection lamps is adjusted according to the actual demands, that is, the power of the projection lamp assembly is adjusted, the mold processing cost is avoided, and the cost is low.

The invention discloses a treatment process and a treatment system for municipal sludge. The treatment system is arranged outside a decomposing furnace, is connected with the decomposing furnace and cement plant equipment, and comprises a sludge drying system, an out-of-furnace pre-sintering system and a steam generation system, the steam generation system is connected with the sludge drying system, and the out-of-furnace pre-sintering system is connected with the sludge drying system and the steam generation system respectively. According to the treatment process, the processes of sludge heating, water evaporation, organic matter incineration and the like are transferred into the pre-sintering furnace and are completed, the furnace capacity of the decomposing furnace is not occupied, conditions are created for large-scale cooperative sludge treatment of a cement kiln, recycling of sludge is achieved, and final treatment of sludge is also achieved.

The invention discloses a fan blade with stiffeners and a manufacturing method thereof. The fan blade comprises a plurality of groups of stiffeners, and the stiffeners are arranged on the upper side, the lower side or both sides of the thickness direction of a core material of the fan blade and comprise a plurality of layers of sheets, and each layer of sheet forms staggered layers along the chordwise direction and the spanwise direction of the fan blade. And the reinforcing strip, a core material of the fan blade and other cloth layers are poured and cured together.