37results about How to "Does not affect chemical properties" patented technology

The invention belongs to the technical field of flue gas purification, and provides an online real-time purging device for an SCR denitrification catalyst. The proposed online real-time purging device for SCR denitrification catalyst has multiple headers corresponding to the multi-layer catalyst beds in the SCR denitrification reactor; multiple headers are located outside the SCR denitrification reactor; It is connected with the outlet of the preheating device in the SCR denitrification reactor; the inlet of the preheating device is connected with the dehumidifier; the dehumidifier is connected with the compressed air tank; the compressed air tank is connected with the gas source; Multiple purge pipes before the catalyst bed are connected; multiple headers send heated compressed air into the purge pipe to purge the catalyst bed. The invention saves the investment cost and the space occupied by the equipment, uses the dehumidified compressed air to blow the soot, the soot blowing mode is intelligent, the operation is simple, and the operation and maintenance costs are saved.

The invention relates to a collagen fabric and a weaving method thereof. The collagen fabric comprises a fabric base layer and collagen micro particles permeated into the fabric base layer, and is characterized in that: the fabric base layer is woven from special fine yarns, each fine yarn is woven from 40 superfine yarns, and each superfine yarn is combined by 48 fibers; and the fine yarns are woven into a blank on a knitting machine, the blank is washed, shrunk and finished into a fabric prefabricated blank, a collagen assistant is added into the fabric prefabricated blank, the collagen micro particles are made to permeate into the fabric prefabricated blank by a padding process, the collagen is absorbed onto the fabric prefabricated blank firmly through thermosetting and drying, and thus the collagen fabric is obtained. In the invention, the collagen is finished and added into the fabric as a functional assistant by a padding process, namely the collagen is firmly absorbed onto the fabric; and the addition of the collagen assistant hardly influences the gram weight of the fabric, but provides the fabric with hydrophilic, moisturizing, skin-care, itching-relieving characteristics and other characteristics of collagen, so that clothes wear more comfort.

A method for disinfecting the powdered material includes such steps as feeding the powdered material in a mixing cabin, introducing the pressurized disinfecting air containing ozone to the mixing cabin to blow up the powdered material for sufficient contact between powdered material and disinfecting air, and filtering for cyclic use of disinfecting air. Its apparatus is composed of a mixing cabin, a pressurized disinfecting air generator, a filter and the connecting pipelines.

The invention relates to a ball mill and discloses application of a ball milling immobilization method in treatment of heavy metal contaminated soil. The ball milling immobilization method is applied to restoration of heavy metal contaminated soil containing nickel, zinc, arsenic, lead and copper. The restoration comprises the following concrete steps: step 1, excavating the heavy metal contaminated soil with an excavator and screening and separating the excavated heavy metal contaminated soil according to particle sizes; step 2, screening and separating out heavy metal contaminated soil with a particle diameter of no more than 2 mm and grinding the separated heavy metal contaminated soil with a ball mill; step 3, adding a mixed reagent for immobilization into the ground heavy metal contaminated soil and carrying out uniform mixing under stirring; and step 4, sampling the restored heavy metal contaminated soil and detecting the obtained sample. With the ball milling immobilization method, heavy metals in the contaminated soil and heavy metal tailings are effectively immobilized, the physical and chemical properties of original soil are not influenced, and the purposes of the soil are not affected.

The present invention discloses a high safety lithium battery. With the high safety lithium battery, in the case of no influence on the chemical properties of the single pack lithium battery sheet, the safety problems of the acupuncture outside the lithium battery or the short circuit inside the lithium battery, and reduction of the heat inside the lithium battery and the battery deformation can be well solved. The high safety lithium battery comprises a lithium battery body, wherein the lithium battery body comprises a plurality of single pack lithium battery sheets, the plurality of the single pack lithium battery sheets are connected in series, circuit-breakers are respectively connected on the connection wire of the adjacent two layers of the single pack lithium battery sheets in series, a heat insulation sealing cloth layer is wrapped on the outer side surface of the single pack lithium battery sheet, a number 1 protection mesh layer is wrapped on the outer surface of the heat insulation sealing cloth layer, a main glue is sealed inside each mesh of the number 1 protection mesh layer, a number 2 protection mesh layer is wrapped on the outer surface of the number 1 protection mesh layer, and an assisted glue is sealed inside each mesh of the number 2 protection mesh layer. The high safety lithium battery is mainly used in the lithium battery technology.

The invention discloses a granular flue gas denitration agent and a preparation method thereof, and belongs to the field of in-furnace denitration. The specific method comprises the steps of dissolving an organic matter in water to prepare an organic matter aqueous solution, coating the organic matter aqueous solution on the surface of solid urea in a spraying manner to form an organic matter coating layer, and then coating an inorganic matter on the outer surface of the organic matter coating layer to form an inorganic matter coating layer, thereby obtaining the granular flue gas denitration agent. The flue gas denitration agent prepared by the method not only avoids the defects caused by using a liquid reducing agent, but also enables the solid urea to be slowly released due to coating of the organic matter layer and the inorganic matter layer, so that the service time of the denitration agent is prolonged, and the denitration rate is improved.

The invention relates to a method for measuring the concentration of lead ions in PM2.5. The method comprises the following steps: dripping a modification liquid to the surface of a glassy carbon electrode, baking, inserting the glassy carbon electrode serving as a working electrode, an auxiliary electrode and a reference electrode into a mixed solution of glycine and sodium nitrate, and repeatedly scanning, so that the surface of the glassy carbon electrode is coated with a polyglycine-multiwalled carbon nanotube/naphthol/epoxy phosphate film; inserting a modified electrode serving as a working electrode into a base solution containing lead ions, giving a voltage-current curve summary chart by virtue of an electrochemical workstation, and reading the current peak of the concentration of each lead ion; and drawing a relational graph between the lead ion concentration and the current peak, obtaining a linear relation formula between the lead ion concentration and the current peak, igniting circular filter paper of a PM2.5 sample to be burnt into ash, dissolving the ash in an HNO3 base solution, inserting the modified electrode serving as a working electrode into a to-be-detected base solution, giving a voltage-current curve chart by virtue of the electrochemical workstation, reading the current peak of the lead ions, and calculating the lead ion concentration through a formula. The method is rapid, easy, convenient and accurate.

The invention discloses a grinding liquid stirring device. The device comprises a stirring barrel, X groups of stirring blades, X stirring shafts, a stirring shaft driving assembly and a stirring control unit; the stirring blades are arranged in the stirring barrel, wherein X is an integer greater than or equal to two; the stirring shafts are fixedly connected with the stirring blades respectivelyand are concentric; the stirring shaft driving assembly drives the stirring shafts to rotate; the stirring control unit controls the stirring shaft driving assembly to start to work or stop working according to preset conditions. By means of the grinding liquid stirring device, the stirring efficiency can be improved under the condition of not increasing the stirring rotation speed, and thereforethe device has the advantages that not only can the chemical properties of grinding liquid not be affected, but also the grinding liquid can be prevented from depositing.

The invention discloses a gelatin/polyetherimide compound electret fiber filtration material prepared through electrostatic spinning. The gelatin/polyetherimide compound electret fiber filtration material is prepared from, by weight, 65-80 parts of polyetherimide, 10-18 parts of gelatin, 6-11 parts of silicon oxide, 9-16 parts of powdery activated carbon, 1-3 parts of 3-aminopropyl triethoxy silane coupling agent, 0.8-2 parts of glacial acetic acid, a proper amount of ionized water, 3-6 parts of metatitanic acid, 0.6 mol/L AgNO3 solution, a proper amount of N-methylpyrrolidone and 0.8-2 parts of acetic acid. Alpha-quartz-containing silicon nanowires are prepared by adopting the material, the gelatin/polyetherimide compound electret fiber filtration material is prepared through an electrostatic spinning technology and has excellent charge storage stability, and the filtering efficiency of the filtration material is greatly improved. In addition, nano silver is added and nano titanium dioxide is loaded to improve the antimicrobial persistence performance of the filtration material and to achieve a long-term and efficient filtration effect.

The invention belongs to the technical field of lithium batteries, and provides an ultrathin solid electrolyte of a lithium battery and a preparation method thereof. In the method, Li2S and P2S5 are added into tetrahydrofuran, the mixture is heated in a water both and stirred for a reaction, obtained white power is added into anhydrous acetonitrile, a water bath heating is carried out for a reaction until the solution completely turns blue, a polished substrate is immersed in the solution, taken out after standing and hot-pressed, and the substrate is peeled off to prepare the ultrathin solidelectrolyte of the lithium battery. Compared with a conventional method, the solid electrolyte prepared by the preparation method of the invention is formed by stacking nanosheets, is uniform and compact in overall structure, significantly reduces the macroscopic thickness of the electrolyte without affecting the mechanical and chemical properties of the electrolyte, and realizes an ultrathin structure. The preparation method is simple and is suitable for large-scale industrial production.

The invention provides a composite antichlor as well as a preparation and use method thereof. The composite antichlor comprises the following raw materials in parts by weight: 5-10 parts of sodium methylate, 25-35 parts of methanol, 5-10 parts of sodium hydroxide, 10-20 parts of sodium ethoxide, 10-15 parts of triethanolamine, 15-25 parts of phenylamine, 10-15 parts of triethylamine and 20-25 parts of diethylamine. The preparation method of the composite antichlor comprises the following steps: weighing raw materials, and stirring the raw materials in a reaction kettle, so as to obtain the composite antichlor. The use method of the composite antichlor comprises the following steps: putting a chlorine-containing material into the stirring reaction kettle with the composite antichlor, carrying out a reaction, and further carrying out separation. The composite antichlor provided by the invention is reasonable in formula, low in preparation cost, good in dechloridation effect, low in byproduct quantity, small in toxicity, not liable to volatilization, not liable to combusting and safe to use, chlorine in a C5 resin can be effectively desorbed, additional values of products can be increased, and later process operation can be facilitated.

The invention relates to a recovery method for positive active material of ni-mh and ni-cd battery, which has characteristics in including steps as follows: (1) visual sieving positive plate of ni-mh and ni-cd battery; (2) inducing sieved positive plate into positive grinder and grinding; (3) physical particle size sieving sieved positive powder; (4) magnetic sieving positive powder obtained by step (3). The method has advantages in that: (1) the recovery method has simple technology, can complete material recycling only by using grinding, sieving, magnetic sieving, and is easy for operation; (2) the method processes physical recovery and sieving by using material physical property without affecting to material chemical property, and obtained product can be used for producing battery indirectly; (3) the method uses lesser equipments, grinder, sieving net, magnet, and can greatly reduce material production cost.

The invention provides a preparation method of an energy saving and emission reduction type lubricating oil additive in the technical field of industry and manufacturing industry, which overcomes the precipitation and agglomeration phenomenon of copper powder in the previous similar technology and avoids the application difficulty and potential mechanical damage caused by the agglomeration of the copper powder. The preparation method comprises the following steps: stirring micron copper powder with low apparent density (0.8-1.00 g/cm<3> and the particle size is 0.1-100 microns) with base oil for 20 minutes according to a proportion of 1:2 by using a planetary stirrer, deoiling by using a centrifugal deoiling machine, taking out the micron copper powder, and roasting for later use; adding the base oil into the copper powder according to a proportion of 1:10, and stirring for 20 minutes by using the planetary stirrer to prepare the micron copper powder lubricating oil additive; adding lubricating oil into the micron copper powder lubricating oil additive according to a proportion of 1:20, and stirring for 20 minutes using the planetary stirrer to prepare a finished product of micron copper powder lubricating oil; adding lubricating grease into the micron copper powder according to a proportion of 1:80, and stirring for 30 minutes by using the planetary stirrer to prepare a finished product of micron copper powder lubricating grease. The specific gravity of the used copper powder is close to that of the oil, and thus the copper powder precipitation phenomenon is well solved.

The invention discloses a device and process for producing slightly-crumpled insulation paper, and relates to the technical field of insulation paper production. The device includes a rack, a flexible supporting device fixedly installed on the rack, a rubber blanket conveying roller and a drying cylinder, wherein the rubber blanket conveying roller and the drying cylinder are rotatably installed on the rack; rubber blanket is wound around the rubber blanket conveying roller and the flexible supporting device, the flexible supporting device is composed of pneumatic tyres installed on the rack and pressing sticks fixed on the pneumatic tyres, and the surfaces of the pressing sticks are fit with the rubber blanket; the drying cylinder is arranged outside the rubber blanket. According to the device and process for producing the slightly-crumpled insulation paper, by further processing wet paper to be processed, the longitudinal extension rate of the insulation paper is increased, follow-up wire wrapping and bending of the insulation paper are facilitated, fractures are avoided, the improvement of work efficiency of electromagnetic wire producers is facilitated, the costs are decreased and the quality is improved.

The invention relates to an unsaturated polyester resin, in particular to a high-tenacity unsaturated polyester resin suitable for centrifugal casting. The invention is prepared by dissolving a reaction product of a condensation reaction of triethylene glycol, diethylene glycol, terephthalic acid, decanedioic acid and boletic acid into styrene and methyl acrylate after the condensation reaction is completed. The invention has the advantages that: (1) the resin is suitable for the centrifugal casting molding process; the flexibility and the anti-breaking property of the products of the resin is also enhanced; and the resin is especially suitable for a model formed by centrifugal casting, and the model can be formed by molding in one step and has both favorable mechanical properties and flexibility; (2) the triethylene glycol and the decanedioic acid are adopted as main raw materials for enhancing the flexibility of the resin, thereby enhancing the flexibility of the resin without affecting the mechanical properties and the chemical properties of the resin; and (3) stability of the product is good, and the process is simple and is easy to operate and control.

The invention discloses a method for preparing an antibacterial medical polymer material. The method comprises the following steps: soaking a medical polymer material in a cleaning solvent for ultrasonic cleaning; then fixing the medical polymer material on a vacuum chamber treatment table of plasma equipment, and activating active groups on the surface of the medical polymer material by utilizinggas of plasma and an ultraviolet lamp; putting the activated medical polymer material into a coupling agent, and finally combining an anti-infective agent on the surface of the activated medical polymer material through chemical plating method, thereby obtaining the antibacterial medical polymer material. According to the invention, the medical polymer material is treated by combining the ultraviolet irradiation-self-assembly single-layer film and the chemical plating, and combining plasma-self-assembly single-layer film and the chemical plating; the treatment mode of the composite technologycan activate active groups on the surface of the medical polymer material to the maximum extent, so that the supply range of raw materials is further expanded, the selectivity of material selection is greatly reduced, and the limitation of the raw materials on production is minimized.

The embodiment of the invention provides a nitrogen oxide emission control method and device. The method comprises the steps of obtaining the current nitrogen oxide emission state; obtaining the current alkalinity state of a material; and according to the current nitrogen oxide emission state, the current alkalinity state of the material and a preset strategy, adjusting the matching ratio of CaO and the matching ratio of CaCO3 in the material. According to the nitrogen oxide emission control method and device, the matching ratio of the CaO and the matching ratio of the CaCO3 in the material are adjusted according to the current nitrogen oxide emission state, the current alkalinity state of the material and the preset strategy, so that on the basis that the alkalinity of sintered ore is guaranteed, the content of the CaCO3 is reduced by changing the component ratio of solvent, and in other words, the content of the CaO is properly increased; generation of nitrogen oxide can be inhibited; the cost is low, and in addition, chemical properties of the sintered ore are not affected; and quality of the sintered ore is guaranteed.