69results about How to "Play the role of water retention" patented technology

The invention discloses a Songnen plain saline-alkali soil comprehensive improvement method. The method includes: fully mixing stripped and smashed Songnen plain saline-alkali soil to be improved, sand, turf, organic fertilizers, and desulfurization gypsum, wherein the volume ratio of the Songnen plain saline-alkali soil is 65-75, the volume ratio of the sand is 20-30, the volume ratio of the turf is 15-20, the volume ratio of the organic fertilizers is 3-6, and the volume ratio of the desulfurization gypsum is 0.06-0.15; backfilling the mixed Songnen plain saline-alkali soil, and watering the Songnen plain saline-alkali soil for more than two times to obtain the improved Songnen plain saline-alkali soil. The method reduces poison of saline and alkali to plants, provides an acid-base buffer effect, improves organic content of the saline-alkali soil, suppresses aggregation of salt on surface soil, and provides nitrogen phosphorus and potassium nutrients required by the plants; and in addition, the sand can improve the structure of the saline-alkali soil, enhance the permeability of soil, and facilitate leaching of saline and alkali.

The invention discloses a cream for treatment for acnes and a preparation method thereof, which relates to a drug for the treatment for acnes and the preparation method thereof. The invention can solve the shortcomings that the existing drugs for the treatment for acnes can cause dry skin after usage, even peeling, cracking and short action time of the drug. The cream for the treatment for acnes of the invention is prepared by clindamycin hydrochloride, metronidazole, stearic acid, glycerol monostearate, white Vaseline, polysorbate 80, glycerin and water; the preparation method is carried out according to the following steps: (1) the oil phase is prepared; (2) the water phase is prepared; and (3) the oil phase is added into the water phase; thus obtaining the cream for treatment for acnes. The cream for treatment for acnes can kill propionibacterium acnes, have long action time of the drug and have no peeling and cracking phenomena after the usage.

The invention discloses a wicker flowerpot manufacturing method. The wicker flowerpot manufacturing method includes the following steps that (1) wickers which are even in thickness and free of plant diseases and insect pests are harvested, paved and aired until leaves are dried up, and then the dried-up leaves are removed; (2) the wickers obtained after leaf removal are washed with saline water for impurity removal, are placed into warm water at the temperature ranging from 50 DEG C to 60 DEG C to be soaked for 30 minutes, and are taken out after soaking to be subject to wicker skin stripping; (3) the wickers obtained after skin stripping is dried with hot air at the temperature ranging from 30 DEG C to 40 DEG C until the water content of the wickers is lower than 10%; (4) the dried wickers are soaked with a made-to-order soaking solution at 40 DEG C for 4 hours, then wicker surfaces are thoroughly washed with clean water; the wickers treated through the above steps are woven into flowerpots; and (6) the woven flowerpots are placed into a refrigeration house for refrigeration for 5 hours, are taken to be directly placed into a made-to-order soaking solution at 60 DEG C for 2 hours and are taken out after soaking is finished, and the surfaces are thoroughly washed with clean water to obtain finished products.

The invention relates to a barrenness mountainous region Chinese chestnut plantation method comprising the following steps: digging colonization pits with relatively big density in the hillside one year in advance; filling the colonization pits with turf soil, leaves from the hillside and night soil; mixing in slaked lime if the soil is acidic, mixing in ferrous sulphate if the soil is slightly alkaline, and the slaked lime and ferrous sulphate can keep the soil PH value to be 5-6; using overlay film fermentation to enable the soil in the colonization pit to be rich in sapling growth nutrition; applying phosphorus-containing fertilizer in sapling plantation; slightly lifting the sapling, so the root can fully contact with the fill soil, and the fill soil is higher than the ground so as to reserve water. The fill soil covers the ground so as to reduce ground temperature, and can be deeply plowed into the soil after rotting; two times of foliar fertilizer and additional fertilizer can greatly improve sapling survival rate; an insecticidal lamp around the sapling can control insects so as to greatly reduce pesticide quantity; tests show that the survival rate can be above 98%, and average mu yield in 6 years can improve by 10%.

The invention provides radiation-proof concrete, and relates to the technical field of concrete. The radiation-proof concrete production technology comprises the following steps of mixed mineral aggregate preparation and finished product preparation, the technological process is simple, cost saving is facilitated, and the prepared concrete is good in radiation-proof performance and high in strength performance. In addition, the invention also provides radiation-proof concrete which comprises the following raw materials in parts by weight: 200-400 parts of cement, 50-180 parts of mineral admixture, 1400-1500 parts of magnetite sand ore, 1800-2000 parts of magnetite ore, 25-45 parts of anti-cracking agent, 6-12 parts of water reducing agent and 150-200 parts of water. The radiation-proof concrete can effectively shield rays, has good radiation-proof effect and high strength performance, is easy to construct, and is economical and environment-friendly.

The invention discloses a cultivation method for bringing tea trees into production in advance. The cultivation method includes steps of (1), clearing lands, applying fertilizers, carrying out watering and covering the lands with black mulching films; (2), dipping the roots of tea seedlings in root liquid for 10-15 s before the tea seedlings are transplanted; (3), transplanting the tea seedlings, to be more specific, digging holes in the mulching films and planting the tea seedlings in double-row and double-plant modes; (4), carrying out watering and soil covering, to be more specific, sufficiently watering the tea seedlings with root colonizing water, then carrying out soil covering and sealing on broken openings of the mulching films but necessarily exposing soil in the ranges of 10-12 cm around the root stock of the tea seedlings; (5), applying fertilizers, to be more specific, perforating the mulching films to apply the fertilizers, or furrowing the centers of small tea rows to apply the fertilizers and applying the compound fertilizers with the pH (potential of hydrogen) values of 6-7; (6), secondarily pruning the tea seedlings and carrying out secondary topping on the tea seedlings. The root liquid comprises 800-1000 times dilution of rooting agents, 1200-1500 times dilution of bactericides and 0.4-0.6 kg / L of clay. The cultivation method has the advantages that the survival rate of the tea seedlings can be increased, and the tea trees can be brought into production in advance by a year; more than a half of weeding cost can be reduced, the quality of the tea trees can be enhanced, the yield of the tea trees can be increased, and economic value of the tea trees can be increased.

The invention discloses an iron ore waste-rock yard land rehabilitation integral regulation method comprising the following steps: cleaning large size rocks and foreign materials on the waste-rock yard land surface, keeping original roads and public & auxiliary facilities, and leveling the waste-rock yard land and slopes and rolling out; keeping and reconstructing original draining systems according to plans, and newly constructing water supply and power supply facilities; building a retaining wall, an apron wall, a waterway, and / or catch water drain on a slope with easy water and soil floating; covering an iron ore open pit mining erosive rehabilitation pile-up topsoil layer with a thickness of at least 40cm on a compacted platform and a slope, leveling and naturally depositing the soil;building a sprinkling facility on a platform, and covering a humus soil of at least 5cm on a planting soil surface layer, and planting city greening normal tree species; digging planting pits with theline spacing of at least 1.5m*1.5m on other platforms and smooth slopes, setting an impervious layer on the bottom, refilling the rehabilitation pile-up topsoil, and finally planting fast-growing forest trees. The iron ore waste-rock yard land rehabilitation integral regulation method is low in rehabilitation cost, high in land treatment rate, and stable in post-rehabilitation geology, and has sustainable benefits.

The invention relates to a three-dimensional elastic solid mesh nest controlled-release fertilizer and a preparation method thereof. The three-dimensional elastic solid mesh nest controlled-release fertilizer comprises the following ingredients in percentage by weight: 20-30 percent of urea, 25-30 percent of dispersing agent, 5-8 percent of emulsifying agent, 35-45 percent of cross-linking agent,1-5 percent of zinc sulfate, and 0.5-1.5 percent of carboxymethylcellulose. A three-dimensional elastic solid mesh nest is formed through carrying out a catalytic crosslinking and polymerization process on the ingredients and various nutrient elements; a solid mesh nest micropore has the functions of expansion when meeting water as well as expansion caused by heat and contraction caused by cold, so that the three-dimensional elastic solid mesh nest has stronger water absorbability, can be expanded multiply when meeting the water, and has elasticity and the function of expansion caused by heatand contraction caused by cold due to the solid mesh nest micropore which has elasticity and mucosity and can be expanded. The three-dimensional elastic solid mesh nest controlled-release fertilizer wholly adopts water-soluble matters, is environmental-friendly, has no residue, has the fertilizer utilization ratio being about 75 percent, has the functions of resisting drought and holding moisture, can be used for improving soil when being used for a long time, and has the functions of resisting drought, conserving fertility, holding moisture and improving fertilizer efficiency.

The invention discloses a sludge lentinus edodes residue growing media suitable for the growth of a Chinese pine and a preparation method of the sludge lentinus edodes residue growing media. The sludge lentinus edodes residue growing media is prepared from lentinus edodes residues and sludge, wherein the lentinus edodes residues are a mixture containing sawdust, wheat bran and starch accounting for 90 percent of the mixture and are sieved into particles with the particle size respectively of 0.5-2mm and 2-5mm, and the particles are compounded according to the ratio of 1:1; and the sludge is a powder with the particle size smaller than 0.5mm; and the sludge with the mass percentage of 20.0% is mixed with the lentinus edodes residues. The preparation method comprises the following steps: removing impurities, sieving compounding, sieving out the sludge powder, weighing and mixing according to the ratio and packaging. By adopting the sludge lentinus edodes residue growing media, nutritional ingredients such as moisture, mineral substances and the like needed in the seedling growing process of the Chinese pine are strengthened, and the function of water retention is fulfilled; and as the sludge and the lentinus edodes residues are effectively combined and utilized, the waste materials can be utilized to create economic benefit, the media problem of the Chinese pine in the seedling growing and production process can also be solved, and the cost is lowered.

The invention discloses a double-mixed wet-mixed mortar additive, which belongs to the technical field of building material admixtures. The additive of the present invention is prepared from the following raw materials by weight: Component A includes 8-13 parts of water-retaining agent, 5-8 parts of thickener, 1-3 parts of plastic-retaining auxiliary agent, 1.5-4.5 parts of strength enhancing component, Air-entraining component 1-3 parts; B component includes polycarboxylate superplasticizer 10-15 parts, retarder 5-10 parts, preservative 0.1-0.2 parts. At the dosage of 0.3%-0.5% of the additive of the present invention, the water retention rate can reach 93.5%, the 28-day compressive strength can be increased by 19.5Mpa, and the strength performance is greatly improved. According to the requirements of use, the addition of component B can be changed to make the mortar The plastic retention time can be adjusted within 24 hours, which greatly prolongs the operation time of wet-mixed mortar, and has a strong promotion and application value.

The process of producing waterproof heat insulating material with sand as main material includes sieving yellow sand, adding paraffin, stearic aid, alum and other additives, and heating to form the waterproof heat insulating material. The waterproof heat insulating material is set in the bottom or the surface of building to form one isolating film with excellent watertight performance and high durability.

The invention belongs to the technical field of cement-based waterproof materials and particularly relates to a cement-based waterproof material and a preparation technology thereof. The cement-basedwaterproof material comprises, by weight, 15-20 parts of plant straw, 45-50 parts of cement, 25-30 parts of quartz sand, 10-15 parts of inorganic filler, 35-40 parts of polyacrylate solution, 16-20 parts of phospholipid molecule solution, 0.5-1 part of tetramethyl thiuram disulfide, and 1-2 parts of polyether modified organosilicone. According to the preparation technology of the cement-based waterproof material, the softened plant straw is twisted into a thick twist shape through a twisting and segmenting device, besides, segmentation treatment is conducted, and then small twist-shaped plantstalk segments are dispersed in cement mortar; and in this way, the tensile strength of the cement base can be improved, and the cement-based waterproof material is prevented from cracking during use.At the same time, the thick plant straw is of a fluffy porous structure, then the thick plant straw can play a role in water retention similar to ceramsite, the water inside the plant straw can be released in the later stage of the cement mortar, so that the cement can be fully hydrated, and then the strength of the cement-based waterproof material is improved.