81results about How to "Effective blockage" patented technology

The invention discloses an organic and inorganic compound passivation solution and a passivation method. The passivation solution comprises, by mass, 20.0-35.0% of citric acid, 5.0-15.0% of phytic acid, 0.5-2.0% of cerous nitrate, 2.0-3.0% of sodium molybdate, 2.0-3.0% of triethanolamine, 1.0-5.0% of nanometer silicon sol dispersion liquid, 1.0-5.0% of water-borne acrylate, 1.0-5.0% of gama-(2,3-epoxy propoxy) propyl trimethoxy silane, 2.0-10.0% of sodium dodecyl sulfate and the balance water. The passivation method comprises the steps of stainless steel product pretreatment, surface acid passivation, cleaning, drying and the like. The compound passivation solution does not contain nitric acid or chromate, pollution to environment is greatly decreased, and meanwhile, the passivation effectof the traditional nitric acid and chromate technique can be achieved.

The invention provides an oil and water selective self-expansion rubber plugging agent for a fractured-vuggy reservoir as well as a preparation method and an application of the rubber plugging agent and belongs to the field of functional polymer materials. The rubber plugging agent has the performance characteristics such as high mechanical strength, high mineralization resistance, high toughness,high volume expansion rate, no separation, autohesion and the like. The rubber plugging agent is prepared from raw materials in parts by weight as follows: 100 parts of nitrile butadiene rubber, 50-110 parts of water-absorbent resin, 5-15 parts of oil swelling resin, 15-30 parts of a reinforcing agent, 0.5-2 parts of a softening agent, 2-5 parts of an accelerant, 3-6 parts of zinc oxide and 0.5-3.5 parts of a vulcanizing agent. The rubber plugging agent can be applied to deep plugging of high-temperature, high-salt and highly-mineralized fractured-vuggy carbonate reservoirs.

The invention relates to a double-drum filter valve, wherein an included angle Alpha which is matched with the rotation angle of an upper plunger valve is formed between the central axis of the seal end of a valve seat a and the central axis of the seal end of a valve seat b in an upper valve cavity; an included angle Beta which is matched with the rotation angle of a lower plunger valve is formed between the central axis of the valve port seal end of a valve seat c and the central axis of the valve port seal port of a valve seat d in a lower valve cavity; and the included angle Alpha and theincluded angle Beta are both 90 DEG. Due to the setting of the included angles, the clamping force between the valve and the valve seats is increased, and the sealing performance is improved; in addition, a seal ring is arranged on the seal end of each valve seat, two axial ends of the upper plunger valve and the lower plunger valve are respectively provided with a ceramic cup-cover-shaped seal structure which forms plug seal to the seal ends of the valve seats, and a positioning flange on each seal structure is in a shape of a cone which is narrowed along the free end. With the structure design, when the plunger valve and the valve seats are sealed, double seal surface seal of end surface and lateral surface is formed, and the plug seal is more reliable; and when a single filtering drum works, a filtering drum which does not work cannot generate liquid leakage.

The invention relates to the field of pharmaceutical formulations, and in particular relates to a traditional Chinese medicine for treating coronary heart disease. The traditional Chinese medicine is characterized by being prepared from the following raw medicines in parts by weight: 20 to 40 parts of pubescent holly root, 7 to 13 parts of ziziphora clinopodioides, 5 to 7 parts of red rhodobryum, 10 to 20 parts of fuscoporia punctata, 12 to 18 parts of semen cassia, 10 to 20 parts of humifuse euphorbia herb, 12 to 18 parts of notopterygium root, 6 to 14 parts of ardisiae japonica, 15 to 25 parts of storax, 10 to 20 parts of acorus calamus, 15 to 25 parts of woody-rhizomed fimbristylis herb, 10 to 20 parts of radix bupleuri, 12 to 18 parts of humulus scandens, 15 to 25 parts of semen lepidii, 5 to 13 parts of zornia gibbosa, 8 to 16 parts of trichosanthes kiritowii maxim, 15 to 25 parts of eucommia ulmoides, 15 to 25 parts of cynanchum paniculatum, and 15 to 25 parts of alpinia katsumadai. The traditional Chinese medicine is prepared by soaking the nineteen raw medicines with water, then decocting, and removing the leaves to obtain the filtrate. According to the traditional Chinese medicine for treating coronary heart disease, all raw medicines are coordinated to act to realize the effects of effectively treating coronary heart disease and cardiovascular blockage, the treatment effect is accurate, the recovery rate is high, and any toxic and side effects are not caused.

The invention discloses anti-cracking, wear-resistant and seepage-proof compound mortar. The anti-cracking, wear-resistant and seepage-proof compound mortar is prepared from raw materials in parts by weight as follows: 20-30 parts of long and short reinforcing fiber, 15-20 parts of a waterproof additive, 10-20 parts of gelatine powder, 10-16 parts of a composite aid, 10-14 parts of glass beads, 65-75 parts of Portland cement, 55-65 parts of fine sand, 35-45 parts of composite filling sand, 1-2 parts of triethanolamine and 1-3 parts of sodium tripolyphosphate. The compound mortar has excellent anti-cracking, wear-resistant and efflorescence preventing properties and has better water resistance, seepage-proof property and adhesion force, relatively excellent impact resistance and thermal insulation and sound insulation effects and a certain pollutant air absorption function; besides, according to the provided preparation method, the material cost is lower, raw materials are easy to obtain, the process is simple, and the compound mortar has higher practical value and excellent application prospects.

The invention provides environment-friendly high-adhesion building primer and a preparation method thereof. The primer comprises a polymer emulsion, a potassium silicate solution, a pH regulator, a freeze-thaw stabilizer, a dispersing agent, a wetting agent, a defoaming agent, pigment, a thickening agent, a coalescing agent, a base material wetting agent and water. The potassium silicate solutionand the cement in the base material belong to silicate inorganic substances and have very good compatibility, and the molecular-level potassium silicate solution can easily wet and permeate into capillary holes of the base material under low surface tension, so that the alkali efflorescence resistance of the primer is improved, the base material is reinforced, and the bonding strength of the basematerial and the primer is improved. Besides, the primer is excellent in performance, all raw materials adopted are environment-friendly and low-odor, harmful substances such as VOC, formaldehyde, heavy metals, APEO and a biocide are not added artificially, the produced product is non-toxic and odorless, and therenewable potassium silicate solution is used as a film forming substance.

The invention relates to a method for maintaining a blast furnace taphole. The technical scheme is that the method comprises the following steps of: cleaning iron runners on two sides of the taphole, a mud sleeve and a taphole frame 1, welding a blind plate 3 to the taphole frame, grouting a grouting nozzle stub on the blind plate 3 by adopting a thermoplastic phenolic resin bonded hard press-in material, standing for 1 to 1.2 hours, detaching the blind plate 3, and cleaning up the grouting material in the taphole; welding a baffle plate 5 to the taphole frame, and pouring an iron runner castable; and respectively opening a grouting hole on a left cross joint, a right cross joint and a vertical joint on the taphole cooling wall, and grouting each grouting hole until the pressure is 4.5 to 5MPa. The method has the characteristics of good treatment effect, reduction of gas leakage in a blast furnace taphole area and guarantee of normal production of the blast furnace.

The present invention is electronic intelligent comprehensive management system and method for preventing theft and rubbing of motor vehicle. The system includes data detection part, data transmission part and data processing part, and the data detection part includes a remote card set in the vehicle, a short-range card carried about by the vehicle owner and a card-detecting instrument. The management method includes: setting remote card fixed in the vehicle; setting the short-range card with unique number and important vehicle data and information; detecting the cards with the card-detectinginstrument to obtain the data of the vehicle; transmitting the obtained data to be data detection part; receiving in the detection part the said data and comparing them with those pre-stored in the data base.

The invention discloses an embolism microsphere, a preparation method thereof and a drug-loaded embolism microsphere, and belongs to the field of medical materials. The preparation method of the embolism microspheres comprises the following steps: forming liquid drops from an aqueous solution containing a polyhydroxy polymer and a cross-linking agent under the electrostatic action, dripping the liquid drops into a collecting solution, dehydrating to obtain a microsphere primary product, and performing cross-linking reaction on the microsphere primary product to obtain the embolism microspheres. According to the preparation method, the size of the embolism microspheres can be accurately regulated and controlled within a proper range, and the prepared embolism microspheres can stably exist in water.

The invention discloses a double-waterproof composite roof which comprises a reinforced concrete face plate, a cement mortar leveling layer, a flexible waterproof layer, a foam concrete layer and an inorganic permeable crystalline waterproof mortar protective layer. The reinforced concrete face plate, the cement mortar leveling layer, the flexible waterproof layer, the foam concrete layer and theinorganic permeable crystalline waterproof mortar protective layer are sequentially flatly laid and overlaid; chemical reaction can be carried out on mortar of the inorganic permeable crystalline waterproof mortar protective layer and free alkali in the foam concrete layer to generate stable permeable crystal substances, the permeable crystal substances can be permeated into concrete crack of theconcrete layer, and particular molecular structures of the permeable crystal substances are [Ca(O-R-OH)2]. The double-waterproof composite roof has the advantages that the waterproof ability and the heat-insulation capability of the building roof can be improved, and the service life of the double-waterproof composite roof can be prolonged.

The invention relates to an anode covering material for aluminum electrolysis. The material comprises the following components of, by mass, 35-40% of aluminum oxide, 18-25% of aluminum fluoride, 35-47% of a mixture of sodium fluoride and calcium fluoride, wherein the mass ratio of the anode covering material with the particle size of 10-50 mm to the particle size less than 10 mm is 3 to 2. According to the material, the anode covering material for the aluminum electrolysis can improve the conductivity of aluminum electrolyte so as to promote the bonding and curing of the fluorine-containing solid particles.

The invention relates to a concrete additive, in particular to a concrete surface reinforcement repair agent. The concrete surface reinforcement repair agent is composed of the following substances inpercentages by weight: 40% to 60% of methacrylic acid-methyl acrylate polymer, 20% to 40% of deionized water, 0.4% to 0.6% of carboxylic acid, 4% to 6% of colloid silicon oxide, 2% to 4% of magnesiumstearate, 8% to 12% of coal ash, 0.4% to 0.6% of silicate and 1% to 2% of anhydrite. The concrete surface reinforcement repair agent disclosed by the invention can be quickly permeated to the interior of concrete to reach the effect of effectively improving the using strength of concrete.

The invention relates to lightweight waterproof concrete blocks used in a river channel and a preparation method of the concrete blocks, and belongs to the technical field of river control engineering. The lightweight waterproof concrete blocks comprise the following raw materials: water, cement, crushed stone, ceramsite, mineral slag powder, fly ash and a composite waterproof admixture, wherein the composite waterproof admixture comprises the following materials: water, a water reducing agent, sodium methylsiliconate, sodium dodecyl sulfonate, heavy calcium carbonate, calcium acrylate, calcium hydroxide, sodium silicate, silica fume, nano aluminum oxide, titanium dioxide, pozzolan and polypropylene fibers; and the method comprises the following steps: performing mixing, performing compression moulding, performing maintenance for multiple times, and performing cutting to obtain the lightweight waterproof concrete blocks. The lightweight waterproof concrete blocks used in the river channel provided by the invention not only have the advantages of good water resistance, good compactness and higher strength, but also have the advantages of a light mass and a low price; and an occurrence of cracking generated at the surface during preparation is reduced, the finished-product rate is improved, and the concrete blocks are suitable for gabions in river channel revetment construction.

The invention discloses polypropylene crosslinking copolymer fiber concrete leaking stoppage paste which comprises earlier-stage leaking stoppage paste and later-stage leaking stoppage paste. The earlier-stage leaking stoppage paste is composed of the following components of, by weight, 3 to 5 parts of a composite filling agent, 4 to 5 parts of a composite reinforcement agent, 2.5 to 3 parts of sodium polyacrylate crosslinking copolymer particles, 5 to 6 parts of flax fibers, 0.5 to 1 part of saw powder and 80 to 85 parts of water. The later-stage leaking stoppage paste is composed of the following components of, by weight, 20 to 30 parts of silicate cement, 5 to 10 parts of sodium polyacrylate crosslinking copolymer particles, 5 to 15 parts of flax fibers, 15 to 20 parts of medium sand and 5 to 10 parts of water. According to the leaking stoppage paste, a bridge connection leaking stoppage method and a chemical leaking stoppage method are combined, leaking stoppage risks are reduced, the leaking stoppage effect is improved, and meanwhile cost is low.

The invention discloses an expansive fiber crack-resistant waterproofing agent for concrete and a preparation method thereof, belonging to the technical field of concrete admixture production; and the expansive fiber crack-resistant waterproofing agent comprises the following components in%age by weight: 15-25% of wollastonite powder, 20-32% of coal gangue powder, 30-40% of pyrophyllite powder, 15-25% of desulfurized gypsum and 3-10% of cellulose fiber. According to the invention, through the synergistic effect of the desulfurizing gypsum, the coal gangue, the pyrophyllite, the cellulose fiber and the like, the compactness of the concrete is effectively enhanced, capillary pores are reduced, and the impermeability, corrosion resistance and bending resistance are greatly improved.

The invention belongs to the technical field of petroleum, and particularly relates to a profile control agent with a fired-coal waste residue and a profile control method. The profile control agent is prepared from two parts of a high-permeation oil layer profile control agent and a medium-permeation oil layer profile control agent, wherein, in percentage by weight, the high-permeation oil layerprofile control agent is prepared from 70 to 80 percent of the fired-coal waste residue with a mesh number of 50 to 100 meshes, 10 to 20 percent of high molecular polymer, 0.5 to 1.0 percent of cross-linking agent, 0.05 to 0.08 percent of stabilizing agent and the balance of water; the medium-permeation oil layer profile control agent is prepared from 40 to 50 percent of the fired-coal waste residue with a mesh number of 100 to 150 meshes, 5 to 10 percent of thickening agent, 1 to 2 percent of dispersing agent, 0.1 to 0.2 percent of pH regulator and the balance of water. The profile control agent with the fired-coal waste residue, which is provided by the invention, has the characteristics of being good in stable performance, high in plugging intensity, high in profile-control success rate, long in valid period and good in production increment effect and can be used for meeting the profile control demand of oil reservoirs with different permeation rates; meanwhile, the profile controlagent is used for effectively solving the problem of environmental pollution caused by the external discharge and the landfill of fired-coal waste and therefore, the profile control agent can be widely applied to the resource treatment of the fired-coal waste residue and the water shutoff and profile control processes of oil and water well.

The invention relates to a sealing charcoal adhesive used in blast furnace and ferroalloy electric furnace, and especially relates to a micro-expansion pressed-in charcoal adhesive applied between a blast furnace bottom hearth and a cooling device, and between a ferroalloy electric furnace graphite lining and furnace housing. The charcoal adhesive comprises the raw materials of, by weight, 45-65 parts of expansion graphite, 5-25 parts of tar, 1-10 parts of aluminum powder, and 3-30 parts of thermoplastic phenolic resin. During long-time application in blast furnace and electric furnace low-temperature sections, heat can be effectively conducted, in-furnace coal gas communication can be prevented, furnace lining cooling capacity can be improved, charcoal brick lining corrosion speed can be reduced, and entire furnace lining service life can be prolonged.