52results about How to "Improve curing ability" patented technology

The invention discloses a curing agent for filling iron tailings and a preparation method thereof and belongs to the technical field of mine safety. The curing agent comprise the following components in parts by mass: 0-70 parts of fly ash, 10-80 parts of superfine mineral slag powder, 0-70 parts of superfine steel slag powder, 0-20 parts of an alkaline activator, 0-20 parts of an sulfate activator, 0.1-1 part of a foam stabilizer and 2-5 parts of a microcapsule in which aluminum powder is used as a core material. The preparation method of the curing agent comprises the steps of firstly weighting fly ash, superfine mineral slag powder, superfine steel slag powder, alkaline activator, sulfate activator and foam stabilizer according to the blending ratio of the components of the curing agent, adding all the components in a stirrer, quickly stirring for 5-15 minutes, adding microcapsule in which aluminum powder is used as a core material and slowly stirring for 2-5 minutes to obtain the curing agent for filling iron tailings. The curing agent for filling iron tailings provided by the invention has strong curing capability and is simple and controllable in use and operation.

The invention provides an oilfield development plugging agent which is prepared from unsaturated resin emulsion, a curing agent and a coupling agent as raw materials, the unsaturated resin emulsion is formed by mixing 196 unsaturated polyester resin, an emulsifier and water, and the coupling agent is gamma-aminopropyl triethoxysilane. The plugging agent is suitable for the formation at the temperature of 30-90 DEG C, and the resin solution can be self curing at the temperature, and can be used for the permanent sealing of large holes or large cracks which do not need plugging releasing. The oilfield development plugging agent has strong plugging ability, salt resistance, wide applicable scope, long validity period and low cost. Compared with the blocking agent in other profile control systems, the oilfield development plugging agent has obvious advantages on plugging of oil reservoirs with large holes or large cracks, and is in line with the needs of oil field sites.

The invention relates to the field of tailing resource comprehensive utilization and waste innocent treatment, and provides a composite cement curing agent used for rapidly curing waste slag (gold slag for short) obtained after subjecting gold ore tailings to iron separation. A cured gold slag product is prepared by fully mixing 85 wt% of gold tailing gold slag and 15 wt% of the composite cement curing agent (comprising an alkaline activator, a sulfate activator, and the like) according to a certain ratio through a material mixer, adding water having a certain mass, fully stirring, adding the mixture after fully stirring into a mold, molding, and curing a molded sample in air for 1 d. The unconfined compression strength when a curing period is 1 d of the cured gold slag prepared by using the curing agent is 1.0 MPa or above, unconfined compression strength when a curing period is 3 d of the cured gold slag is 2.0 MPa or above, and unconfined compression strength when a curing period is 7 d of the cured gold slag is 2.5 MPa or above. The curing agent is simple in formula, low in using amount, good in catalytic effects, and rapid in curing, and the early strength of a cured product is high. Unification of tailing treatment and comprehensive utilization is achieved.

The invention provides a method for stabilizing a subgrade by adopting a soil stabilizing agent. The method comprises the steps of mixing materials comprising a strong oxidant, a dispersing agent, an ionic polymer activating agent and a stabilizing catalyst together to prepare the soil stabilizing agent; preparing the selected subgrade material according to the soil with the plasticity index of 7-35; diluting the soil stabilizing agent in water in a volume ratio of (1:100)-(1:200), and simultaneously adding 3-20 of carbide slag, 3-12 of lime or 2-8 of cement to the subgrade material according to the earthwork weight ratio to be mixed; spraying and compacting: computing the volume ratio (generally 0.016-0.02%) of the prepared soil stabilizing spray solution according to the earth volume of compacted soil, converting the volume ratio to weight ratio when adding the usage amount, spraying the soil stabilizing agent with density of 1.7-1.75g/cm<3> into the soil used for the subgrade, and forming the subgrade through compaction. The method has the advantages that harmful substances can not be produced; the method is simple in construction technology, is convenient to operate, is favorable for reducing the construction amount, is high in soil stabilizing speed, has good effects, conduces to greatly shortening the construction period, is more suitable for the characteristics of local soil properties, and has more obvious stabilizing effects.

The invention relates to a preparation method for a flame-retardant heat-resistant antenna radome base material. The preparation method comprises the following steps: preparing a filler with the average grain size of 180 nanometers by taking nano silicon dioxide foam, dodecylbenzene sulfonic acid, bismuth nitrate pentahydrate and methyl trichlorosilane as raw materials; preparing a resin prepolymer by taking DOPO, a bisphenol A cyanate ester monomer, a phenolic compound, 1,3,5-triglycidyl -S-triazinetrione, bisphenol A epoxy resin and diaminodiphenyl ether as raw materials; mixing the resin prepolymer with maleic anhydride; then sequentially adding poly(methylsilsesquioxane) and the filler; then adding isomeric undecanol polyoxyethylene ether phosphate potassium salt and glass beads to obtain a composite system; then injecting the composite system into a die coated with a release agent, carrying out mold pressing under a vacuum condition, and finally turning off a power supply and naturally cooling; and releasing the die to obtain the flame-retardant heat-resistant antenna radome base material. The flame-retardant heat-resistant antenna radome base material has excellent flame retardance and heat resistance, and the development application of the flame-retardant heat-resistant antenna radome base material is satisfied.

The invention belongs to the technical field of comprehensive utilization of solid waste, in particular to a treatment method for stabilizing and reducing municipal sludge, which comprises the following detail steps of: reacting condensed sludge, which is produced by a sewage treatment plant and of which the water content is higher than 80 percent, with waterborne polyurethane dispersion emulsion for 2 to 24 hours at the temperature of 60 to 100 DEG C, and centrifuging the reactant for 15 to 60 minutes at a rotation speed of 3,000 to 10,000 revolutions per minute to obtain stabilized and reduced dehydrated sludge. The treatment method provided by the invention adopts two steps for treatment, namely blending modification of the waterborne polyurethane dispersion emulsion and dehydration of a centrifugal dehydrator; the water content of the treated sludge is low (less than or equal to 60 percent); heavy metal ions in the sludge can be effectively removed; treatment cost is saved; harmless quality is greatly improved; the yield of the sludge can be reduced by over 40 percent; and the treatment method has the advantages of simple equipment, low cost, no secondary pollution, simple and convenient operation and the like, and is suitable for the treatment of the sludge in a city and town domestic sewage plant.

The invention relates to the technical field of chemical engineering preparations, and concretely relates to an energy-saving and environmental-protection soil solidifying agent. The soil solidifying agent comprises, by weight, 10-15% of lime, 10-20% of fly ash, 1-5% of water glass, 0.5-3% of calcium lignosulphonate, 0.1-5% of sodium lignosulfonate, 5-10% of gypsum, 10-30% of ordinary Portland cement and 5-12% of sodium carbonate. The purpose of the invention is to provide the energy-saving and environmental-protection soil solidifying agent with the advantages of ideal performances and low cost.

The invention relates to the field of coatings, and discloses an environment-friendly diatom ooze decorative wall material. The environment-friendly diatom ooze decorative wall material is prepared from components in parts by weight as follows: 20-40 parts of diatomite, 2-35 parts of an adhesive, 6-8 parts of marble quartzite powder, 6-8 parts of attapulgite powder, 8-10 parts of starch ether, 10-25 parts of quartz sand, 6-8 parts of fluorine-containing siloxane and 3-5 parts of zeolite-loaded nanometer titania. The energy-saving and environment-friendly diatom ooze decorative wall material contains no harmful substances and has the advantages of good cohesiveness, high formaldehyde removal efficiency, high antibacterial activity and deodorization performance and excellent self-cleaning and purification durability, and the performance index meets requirements specified in the JC/T2177-2013 standard.

A solid microbial inoculum for remediating Cd in farmland soil, comprising: curtobacterium luteum, cupriavidus necator, sphingomonas parapaucimobilis, cellulosimicrobium cellulans, azotobacter sp., saccharomyces sp., streptomyces sp. and pseudomonas sp. Acetic acid solubility of Cd, Cu and Zn in soil that is remediated by the solid microbial inoculum disclosed by the invention can be decreased significantly.

The invention discloses a drilling rock harmless treatment and resource utilization technology and device. The drilling rock harmless treatment and resource utilization technology includes the steps: a taking step: extracting preset-volume to-be-treated rock debris in a rock debris storage pool, and taking the volume of the preset-volume to-be-treated rock debris extracted at each time as a volume unit; a crushing step: crushing the to-be-treated rock debris taken in the taking step into powder particles; a curing step: respectively adding the preset volume parts of a curing agent, cement and stones into the powder to-be-treated rock debris, and blending evenly into a mixture; and a forming step: pressing the mixture formed in the curing step into preset-volume building blocks. In the way, a solid component after solid-liquid separation forms the mixture through the technology and through the action of the preset-proportion curing agent and other raw materials, the mixture is pressed into the building blocks, and the transformation of solid slurry into a building material is achieved; the technology has strong curing treatment ability, and the resource utilization degree and the environmental protection performance are improved.

The invention relates to the technical field of building materials, in particular to a reinforcing steel bar rust-prevention material applicable to the interior of concrete and application of the reinforcing steel bar rust-prevention material.The reinforcing steel bar rust-prevention material is formed by mixing solid powder and mixed liquid in proportion and can directly act on the surfaces of reinforcing steel bars inside the concrete without affecting cohesiveness between the reinforcing steel bars and the concrete.The reinforcing steel bar rust-prevention material is simple in application method, more direct in rust-prevention effect and longer in anti-rust effect, and meanwhile the material has the advantages of being great in chloridion curing capability and great in surface alkality, so that the material is greater in anti-rust capability.

The present invention process of microporous carbon hydroxyapatite with natural rock phosphate as material includes dissolving and eliminating impurity; compounding homogeneous Ca, P, urea and EDTA system; and foam inducing and homogeneous precipitation to obtain microporous carbon hydroxyapatite with pore size of 0.5-10 micron. The product has excellent organic and biological compatibity, ion exchange property, etc. as well as powerful protein separating, solid alkali catalysis, medicine carrying, radioactive substance solidifying and other capacity. It may be used in porous biological material, protein separation, chromatography, catalyst, catalyst carrier, medicine carrier, radioactive substance treatment and other fields.

The invention discloses a preparation method of an amino-functional bisphenol A epoxy resin. The method includes the steps of 1, weighting a certain amount of bisphenol A, adding a solvent under the protection of nitrogen, evenly stirring, adding thionyl chloride, evenly stirring, adjusting the temperature to 60-80 DEG C, stirring for 5-8 h, filtering to obtain a primary product, washing the primary product with deionized water until the primary product is neutral, and drying for use; 2, evenly mixing the primary product prepared in step 1 with an amine compound, flowing back at 80-100 DEG C for 6-10 h, filtering to obtain a secondary product, washing the secondary product until the secondary product is neutral, and drying for use; 3, adding the secondary product prepared in step 2 into a reaction vessel, adding epoxy chloropropane to react at 50-70 DEG C for 5-8 h, and filtering and washing to obtain a final product. The epoxy resin prepared by the preparation method includes not only an active epoxy group, but also an amino-functional group, and can react with different curing agents, which enlarges the application scope of the epoxy resin.

The invention discloses a pre-treatment method for preparing ceramsites from heavy metal contaminated soil before entering a kiln. The pre-treatment method includes first step: impurity removing, screening and crushing are carried out; second step: calcium oxide is added to the soil, the water is added, and even stirring is carried out; third step: the obtained mixture is fed into a ball mill, andclay minerals are added at the same time; fourth step: heavy metal leaching concentration is determined, and if the leaching concentration does not exceed a concentration limit of type III surface water pollutants, the pre-treatment process is over; fifth step: if the leaching concentration is still higher than the concentration limit of the type III surface water pollutants, the process is returned to the first step, after the first step and the second step treatment are repeated in sequence, then the obtained object is directly send to a ceramsite kiln in a non-granulation mode, and high-temperature roasting is carried out according to the operation procedure of the ceramsite kiln; and six step: the third step is repeated, and the pre-treatment is completed. The pre-treatment method aims to effectively reduce the heavy metal release risk of ceramsite products, and the problem of heavy metal excessive release of the high and low heavy metal polluted soil ceramsites under the currentsituation is solved.

The invention provides a glue sealing system and method for an optical fiber sensing probe, and solves the problems that, in an existing optical fiber sensing probe sealing mode, the bonding positionis easy to deviate, the product reliability is low, the thermal curing time is long and the efficiency is low. The system comprises a mounting platform, a spectrum monitoring assembly, an optical fiber clamping assembly, a curing light source for realizing pre-curing of a semiconductor wafer and an optical fiber, and an alignment lens for monitoring the positions of the semiconductor wafer and theoptical fiber, the spectrum monitoring assembly comprises a light source driving circuit, a light source module, an optical fiber coupler, a spectrograph and a computer, the light source driving circuit is connected with the input end of the light source module, the output end of the light source module is connected with the input end of the optical fiber coupler, and two outputs of the optical fiber coupler are connected with the upper-end optical fiber holder, the spectrograph, the spectrograph and the computer respectively; and the optical fiber clamping assembly comprises a three-dimensional adjusting support arranged on the installation platform, a fixing frame arranged on the three-dimensional adjusting support, a rotating tool arranged on the fixing frame and N lower end optical fiber clamps arranged on the rotating tool.