56results about How to "Reduce curing costs" patented technology

The invention provides a manufacturing method of a wing-body integrated honeycomb sandwiched composite material skin. The manufacturing method comprises the steps of preparing a hot-pressing die of the wing-body integrated honeycomb sandwich composite material skin, laying and hot-pressing, wherein a plurality of antiskid positioning holes having the diameter of 0.5mm are formed in the profile of the die along honeycomb mounting edges. Flexible honeycomb antiskid positioning ribs are mounted on the profile of the die and a beneficial solidification process in a hot-pressing tank is obtained by virtue of lots of tests, so that shortcomings caused by the deviation of a honeycomb sandwich in a co-solidification process are eliminated thoroughly, the solidification period is shortened and the solidification cost is reduced.

The invention discloses a municipal solid waste incineration fly ash curing method. The method comprises the steps of mixing waste incineration fly ash, cesium carbonate waste residue, potassium carbonate and cement according to the ratio of (40-50): (25-38): (3-6): (15-25); then, feeding right amount of purified water into the mixture, evenly mixing, enabling a molding model to be filled with the mixture, extruding and compacting; after that, standing the model in the air for 24 hours, and then demoulding to obtain a cured green body; maintaining the cured green body to obtain a cured body which can be directly buried, wherein the maintaining time is not shorter than 14 days. According to the method, the cesium carbonate waste residue is taken as an important raw material for curing the fly ash, so that the consumption of the cement is greatly reduced, waste recycling is realized, and the waste incineration fly ash curing cost is lowered. After the method is used, the compressive strength of the cured body and the heavy metal leaching completely meet the landfill requirements.

The invention discloses a solidification treatment method for sludge of urban sewage plants. The method comprises the following steps of (1) adding curing agent consisting of lime, sulfate aluminum cement, portland cement and fly ash in dehydrated sludge based on the weight of the dehydrated sludge, wherein the weight percentage of lime, sulfate aluminum cement, portland cement and fly ash in the curing agent are as follows: 1.2-1.9% of lime, 3.0-6.1% of sulfate aluminum cement, 3.0-3.7% of portland cement and 4.7-6.0% of fly ash; and (2) mixing the sludge added with the curing agent to form precursors of solidified blocks, piling the precursors up according to a height of 7 cm, and covering with waterproof membrane, maintaining the precursors for three days with a dry maintaining method, and forming sludge solidified blocks. The method provided by the invention has the advantages of efficiency, low cost, simple operation and the like.

A battery paste additive, and process for making the same comprising micronized seed crystals of tetra basic lead sulfate, is added to battery paste and results in accelerated curing time and other improvements in battery performance. The battery paste additive may be used to produce positive or negative battery plates and may be use with conventional mixing, pasting and curing processes and equipment.

The invention discloses a fine grain tailing low-cost solidification disposal method which comprises five processes: tailing concentration and transportation, curing agent mixing grinding, mixing of tailing and curing agent, aging and molding, and conserving. Curing agent is composed of pulverized fuel ash, quick lime and sintering desulfurization ash. The weight ratio of the pulverized fuel ash, the quick lime and the sintering desulfurization ash is 1:0.4-0.5:0.12-0.15. Tailing is mixed with the curing agent, and dry tailings are added so that in the final discharged materials, water is presented in amount of 24%-29%. By dry weight, the ratio between the tailing and the curing agent is 76.2-90.4:9.6-23.8. The conserving process comprises natural conserving, or combination of the natural conserving and atmospheric steam or high-pressure steam. The curing agent is simple in formula, little in use dosage, good in catalytic effect, high in strength of curing products, and low in tailing curing cost. Through adjustment of dosage of the curing agent, curing products of various construction materials like construction bricks for filling or producing can be produced, and combination of tailing processing and tailing comprehensive utilization are achieved.

The invention discloses a red mud-steel slag composite geopolymer cementing material for soft base solidification. The cementing material is adopted for soft base solidification and soil improvement.The main body of the cementing material consists of red mud, steel slag, cement, metakaolin and an early strength water reduction agent. Active aluminate and silicate components of the cementing material are provided from the red mud and the metakaolin, minerals in the steel slag, the metakaolin and the red mud are activated by the alkali properties of the red mud self and a small amount of the cement to carry out a hydration reaction, then cementing substances can be generated, and the red mud-steel slag composite geopolymer cementing material is relatively high in strength and good in property. The mass ratio of the red mud to the steel slag to the cement to the metakaolin is (42-50):(35-41):(4.5-10.5):(4-10):(1-2). When the cementing material is applied to soft soil solidification, theutilization rates of the two wastes, namely the red mud and the steel slag, can be increased, application of the cement in soft base solidification can be also reduced, the soft base solidification cost can be reduced, and good environment benefits can be made.

The invention relates to a cyanidation tailing solidification agent and an application of the solidification agent. The cyanidation tailing solidification agent comprises the following components in parts by mass: 50-70 parts of magnesium ore powder, 30-50 parts of a soluble magnesium salt, 0-10 parts of a polymer emulsion and 0-5 parts of an admixture. The solidification agent provided by the invention can motivate self cementation solidification of inactive cyanidation tailings, and also provides solidification strength which is high enough. A solidification body formed by combination with the cyanidation tailings has a compact structure, and pollutants of CN<-> and heavy metals are controlled by solidification and stabilization, so that the leaching rate meets the relative requirements of national standards. The solidification agent provided by the invention has less doping amount, employs cheap raw materials, decreases the solidification cost of the cyanidation tailings, is suitable for industrialized production, and has good economic benefits and wide application prospects.

The invention discloses liquid crystal epoxy resin as well as a preparation method and an application thereof. The preparation method comprises the following steps: reacting 3,5'-di-tert-butyl-5,3'-dimethyl biphenol with excessive epichlorohydrin in the presence of a phase transfer catalyst, thereby obtaining 3,5'-di-tert-butyl-5,3'-dimethyl diphenyl diglycidyl ether, wherein the softening point of 3,5'-di-tert-butyl-5,3'-dimethyl diphenyl diglycidyl ether is measured to be 10 DEG C through DSC, and the 3,5'-di-tert-butyl-5,3'-dimethyl diphenyl diglycidyl ether is a thick non-solid product at the room temperature; then, selecting a proper curing agent to pre-cure at a low temperature, enabling a biphenyl rid-rod-shaped structure to orientate and arrange with enough time, curing and cross-linking at a high temperature, thereby obtaining a liquid crystal structure. Compared with the conventional preparation method for the rigid-rod-shaped epoxy resin, the preparation method disclosed by the invention is low in curing cost.

A curing agent for sludge and sand consists of fly-ash 1-50 proportion, aluminum silicate 5-70 proportion, polymerized ferric sulfate 0.1-15 proportion, phosphogypsum 0.1-60 proportion, glauber salt 0.1-20 proportion and calcium carbonate 5-60 proportion. It can be added into various sludge, mud and sands, which makes sludge, mud and sands coagulation and curing rapidly. It can have better early-stage strength and more heat and accelerate chemical reaction between curing material and mud.

The invention relates to a UV LED area source for an offset printing press, which is a semiconductor luminous device directly generating ultraviolet light, and belongs to the field of offset printing press printing. The UV LED area source is mainly characterized in that: high-power LED chips of which the luminous wavelength is between 200 and 450nm are integrated in a certain ratio to form the area source or linear source with a certain wavelength in a wave band of which the peak wavelength is between 200 and 450nm; the emission spectrum of the light source is matched with an absorption spectrum of a photosensitizer in a sensitive glue material, namely the length of waves emitted by the UV LED area source is concentrated at the periphery of the absorption wavelength of the photosensitizer so as to effectively improve the absorption rate and highly efficiently trigger the photosensitizer in the sensitive glue; and under the action of the photosensitizer and the ultraviolet light, the glue is combined with the photosensitizer so as to generate a water insoluble solid matter. Because the area source or the linear source is the LED semiconductor light source device, and compared with a supervoltage mercury lamp and a Iodine gallium light, the area source or the linear source cannot cause energy loss caused by infrared light, has extreme low loss and not great temperature rise, avoids the temperature influencing printing materials, and is nontoxic and green; and the area source can be designed into any geometrical shapes such as a linear shape, a surface shape and a three-dimensional shape as required in the actual use. The UV LED area source has strong usability and obvious economic benefit, industry innovation benefit and social benefit.

The invention discloses an ultraviolet curing molding machine which comprises a constant-voltage power supply, a control device and an LED ultraviolet irradiating head. The control device comprises a master control board, a keyboard plate, a data processing module, a liquid crystal display and an irradiating head interface, and the keyboard plate, the data processing module, the liquid crystal display and the irradiating head interface are electrically connected with the master control board; the constant-voltage power supply is electrically connected with the master control board of the control device; and the LED ultraviolet irradiating head is electrically connected with the irradiating head interface of the control device. The ultraviolet curing molding machine has the advantages that UV (ultraviolet) resin materials are cured by the aid of an ultraviolet LED cold light source, so that electric energy consumption is reduced, the curing cost is saved, the requirement on environmental protection is met, and the ultraviolet curing molding machine can be used flexibly and conveniently and has an excellent popularization prospect.

The invention discloses a heavy metal normal temperature solidifier and a method for solidifying heavy metal in a heavy metal pollutant by using the heavy metal normal temperature solidifier. The heavy metal normal temperature solidifier is produced from the following raw materials in parts by weight: 1-10 parts of a nanometer molecular sieve, 3-20 parts of calcium oxide, 1-30 parts of aluminum sulfate and 1-10 parts of ferric oxide. When the heavy metal in the heavy metal pollutant is solidified, firstly, the heavy metal pollutant and the heavy metal normal temperature solidifier are mixed evenly under a normal temperature condition to obtain a mixture; the produced mixture stands under the normal temperature condition for 48-72 hours; and water is added for mixing to make the water content in an obtained mixture reach 25-40%, and the mixture stands under the normal temperature condition. By means of the heavy metal normal temperature solidifier, the problems that in the prior art, the high-temperature solidifying production cost is high, secondary pollution is liable to be generated, a normal temperature solidifying effect is poor, the dosage is high are solved, moreover, the method for solidifying the heavy metal in the heavy metal pollutant by means of the heavy metal normal temperature solidifier is very simple, operation is simple and convenient, the solidifying cost is low, and a solidifying effect is good.

The invention discloses a pneumatic compression and curing method for a self-lubricating bushing. The self-lubricating bushing comprises a bushing substrate and a PTFE fabric self-lubricating liner. A high temperature-resisting air bag which is cylindrical after air inflation is sleeved with the PTFE fabric self-lubricating liner, pneumatic compression is carried out on the air bag under room temperature via an inflator with a pressure meter; pressure in the air bag applies a force to the PTFE fabric self-lubricating liner until the pressure value on the pressure meter is the corrected value F1 of cured pressure and then air inflation is stopped and the air bag is sealed; the self-lubricating bushing with the air bag is put in an oven whose temperature is the room temperature T1; the oven is started to enable temperature inside the oven to reach the temperature T2 needed by curing of the PTFE fabric self-lubricating liner, the temperature T2 is kept for a period of time, and pressure suffered by the PTFE fabric self-lubricating liner is the cured pressure F2. The curing method has the advantages of greatly ensuring accuracy of cured pressure and reducing curing cost.

The invention discloses a fly ash composite chelating agent and a preparation method and application thereof, belonging to the field of treatment of incineration fly ash. The fly ash composite chelating agent comprises the following components: organic agents, NaH2PO4 and Na2S, wherein the organic agents comprise potassium dimethyl dithiocarbamate, sodium diethyl dithiocarbamate, dithiocarbamate and ethylenediamine tetraacetic acid. The fly ash composite chelating agent can undergo a chelating reaction with almost all the heavy metal ions at normal temperature, is good in stabilizing effect, small in use amount, simple in step, low in curing cost and high in practicability, and has high efficiency and economical efficiency in treatment of heavy metals in hazardous waste, namely the incineration fly ash.

The invention relates to a harmless disposal method for high-arsenic heavy metal sludge and belongs to the technical field of hazardous waste treatment. The harmless disposal method comprises the following steps of firstly, precalcining the high-arsenic heavy metal sludge with water content of less than 40 percent under the condition that the temperature is 100 to 300DEG C for 0.5 to 3 hours to obtain a calcined product; adding lime and additives into the obtained calcined product according to the mass ratio of (30 to 80): (10 to 40):(1 to 30), and uniformly stirring to obtain a mixed material; forming the obtained mixed material to produce a solidified body, cooling and then safely storing. According to the sludge disposed by the harmless disposal method, leaching concentrations of all heavy metal elements meet the requirements of Identification Standard and Leaching Toxicity Identification of Hazardous Waste (GB5085.3-2007) and Landfill Pollution Control Standard for Hazardous Waste (GB18598-2001).

The invention provides a modified g-C3N4 activator for UV-EB radiation curing. A UV-EB radiation curing body is firstly subjected UV (ultraviolet light) radiation curing, and then is subjected to EB (electron beam) radiation curing. The modified g-C3N4 activator is prepared from g-C3N4 according to an acid and alkali double activation modification method, and separately serves as a photoinitiatorand an active stabilizer in a curing system during a UV radiation curing process and an EB radiation curing process. The invention initiatively provides a g-C3N4 acid and alkali double activation modification method, successfully applies the modified g-C3N4 activator to a UV-EB radiation curing system, and obviously reduces energy consumption, improves the production efficiency and reduces the cost, and curing coating has excellent comprehensive operation performances.

The invention provides a waste incineration treatment system with a high-temperature dust remover. Flue gas produced by waste incineration is exhausted after being subjected to multistage dust removal purification, first-stage dust removal is completed by the high-temperature dust remover, and collected fly ash is less in dioxin content and capable of being recycled; low-temperature dust removal is adopted by second-stage dust removal and third stage dust removal, the dust removal efficiency is high due to the combination of the second-stage dust removal and the third-stage dust removal, the dust content and dioxin content of the exhausted flue gas are low, and the flue gas is cleaner; activated carbon is sprayed into the flue gas at an inlet of a third-stage remover, dioxin in the flue gas is adsorbed, activated carbon is collected by the third-stage remover and sent back to f hearth of an incinerator, dioxin adsorbed by the activated carbon is disintegrated at high temperature, and the toxicity is removed. The waste incineration treatment system with the high-temperature dust remover has the advantages that the fly ash collected through high-temperature dust removal can be recycled, dioxin adsorbed by the activated carbon is disintegrated at high temperature after being sent back to the hearth, the total quantity of dioxin exhausted from waste incineration is effectively reduced, and the adverse effect of waste incineration on the environment is reduced.