36results about How to "Reduce water evaporation rate" patented technology

The comprehensive desert tackling method includes the steps of spreading artificial lawn over desert; utilizing positioning nails to fix the artificial lawn; cutting planting hole in the artificial lawn; filling soil in the planting hole and planting; and spreading coarse sand on the artificial lawn. The said method can utilize the precious underground water resource in desert and tackles desert directly from fixing sand, maintaining water and greening. The present invention may be used in both tackling desert and preventing soil desertification and has the advantages of fast effect and short period.

The invention provides a flue gas desulfurization and demercuration method comprising the following steps of: spraying water containing chlorine ions into a circulating fluidized bed dry-method desulfurization and demercuration dust-removing device to purify raw flue gas; taking the water containing the chlorine ions to carry out a desulfurization and demercuration reaction in the circulating fluidized bed dry-method desulfurization and demercuration dust-removing device; and leading the purified dust-containing flue gas to pass through a cloth bag filter to obtain purified flue gas. The flue gas purified by using the method disclosed by the invention has high desulfurization and demercuration efficiency. The invention further provides a flue gas desulfurization and demercuration device for the method provided by the invention. The flue gas desulfurization and demercuration device comprises a water storage tank, an atomizing device communicated with an outlet of the water storage tank, and the circulating fluidized bed dry-method desulfurization and demercuration dust-removing device communicated with an outlet of the water storage tank. Furthermore, the method has the advantages of simple process flow, low investment and operation cost and easiness for industrialization; and the device occupies a small area and is convenient to operate and maintain.

The invention relates to a method for preparing a short-chain fatty acid vinyl ester series cement dispersant. Short-chain fatty acid vinyl ester is used as a copolymerization monomer for preparing the cement dispersant material, namely the method comprises the following steps of: performing ternary polymerization by using the short-chain fatty acid vinyl ester, an unsaturated easily-dehydrated compound and an unsaturated sulfonic acid (sulfonate) compound as monomers, performing full alcoholysis and hydrolysis on the polymerization product, performing condensation reaction on the hydrolyzed product and a methoxy polyoxyethylene ether compound under the action of a catalyst, and thus obtaining the cement dispersant. The invention has the advantages of strong process controllability, high structural activity, energy conservation and environment friendliness; the main chain of molecules carries various strong adsorption groups by the polymerization reaction, the water holding property of the alcoholysis product of the short-chain fatty acid vinyl ester is fully exerted, and hydrophilic side chains are grafted to the main chain by the condensation reaction to form the cement dispersant with the novel structure; and the granule dispersibility, the flowability and the age holding capacity of cement slurry are fully improved, the workability of cement is improved, and the cement dispersant shows excellent cement adaptability.

The invention discloses a preparation method of a wear-resisting MTO catalyst. The method comprises the steps that an ammonium pyrophosphate or hexamethylphosphoric acid triamide dispersing agent is added, and MTO catalyst fine powder is added to levigate molecular sieve slurry till the granule diameter D50 is smaller than or equal to 5 microns; then a carrier and a binding agent are added, spray drying granulation and calcination through a calcinator are conducted at a lower temperature, and the wear-resisting MTO catalyst is obtained; a heat source of a spray drying tower comes from recycled hot air of a combustion chamber of the rotary calcinator. According to the preparation method, the MTO catalyst with a high globular degree and a strong wear-resisting property can be obtained, useless components with the granule diameter ranging from 0 to 20 microns are effectively reduced, and the synthesized MTO catalyst is even in granule diameter and larger in granule and has higher selectivity for MTO reactions.

The invention relates to a plant water-saving antitranspirant and a preparation method thereof, and belongs to the technical field of plant water-saving agents. The plant water-saving antitranspirantis capable of using a wax layer of ammopiptanthus mongolicus skin to combine with n-dodecyl alcohol, n-hexadecyl alcohol and aromatic alcohol, and is sprayed on the leaf surface to form a layer of a transparent molecular film, so the mass transfer resistance of water gas-liquid transmission is increased, the antitranspirant achieves the effect of a vapor exchange energy barrier and has the stronginhibition and water retaining effect, the antitranspirant can be rapidly and autonomously spread out to form the molecular film after sprayed on the leaf surface, and a leaf surface water evaporationrate can be effectively delayed. The plant water-saving antitranspirant is capable of using drought-resisting stress-resisting natural substances, such as more than ten types of amino acids and alkaloid contained in the ammopiptanthus mongolicus, to combine with a drought-resisting element, keeping and improving the plant cellular affinity and water retaining capacity, preventing the cell dehydration, enabling plant cells to have the apparent drought-resisting capacity, reducing the plant water transpiration, remarkably increasing the chlorophyll content, improving the photosynthesis, enhancing the plant enzyme system physiological activity, and stimulating the growth of a plant root system.

The invention relates to the technical field of agricultural biotechnology, and particularly relates to a drought-resistant and harvest-protection agent for spring wheat. The drought-resistant and harvest-protection agent is in the state of concentrated mother liquor and includes the following components: a fertilizer-effect substance, glucose, complex amino acid, ethanolamine, fulvic acid, abscisic acid, a chelating agent, a humectant, a film-forming agent and deionized water. The humectant is a novel efficient water-absorbing material prepared by the combination of acrylic resin-based gel and starch phosphate; the fertilizer-effect substance includes macroelement fertilizer and micronutrients fertilizer; the chelating agent is EDTA; and the film-forming agent is polyvinyl alcohol. The drought-resisting and harvest-protection agent has the advantages of comprehensive fertilizer effect, good film forming property, excellent moisturizing and anti-transpiration effect, and has little influence on photosynthesis and respiration of plants, and can be used for drought resistance and harvest protection of wheat in summer.

The invention discloses a method for interplanting feed peas in a dragon fruit field. According to the method, mainly, pea seeds are dibbled in plant holes around stock plants of dragon fruits. When the feed peas are interplanted in the dragon fruit culture field according to the method disclosed by the invention, nitrogen fixation and moisture preservation of soil can be implemented, the proportion of a livestock and poultry breeding feed is optimized, and mountain people are propelled to overcome poverty and achieve prosperity.

The invention relates to light high-strength thin-wall cast-in-place concrete. The concrete is prepared from the following raw materials in parts by weight: 220 to 300 parts of cement, 120 to 150 parts of fly ash, 20 to 30 parts of silica fume, 60 to 80 parts of mineral powder, 820 to 900 parts of gravels, 640 to 800 parts of river sand, 80 to 140 parts of glass fiber reinforced plastic particles,8 to 12 parts of additives, 40 to 80 parts of a shrinkage-reducing anti-cracking material and 130 to 150 parts of water. The concrete has the beneficial effects that the risk that the thin-wall structure with the large ratio of the specific surface area to the volume of the thin-wall structure is prone to cracking can be reduced, and pouring construction of parts with narrow working faces, densereinforcing bars, complex shapes and the like can be completed under the vibration-free or slight vibration condition.

The invention discloses a saline-alkali soil heavy metal ion remover and a preparation method thereof. The saline-alkali soil heavy metal ion remover comprises the following raw material components byweight: 30-45 parts of mineral source humus ultrafine powder, 5-10 parts of a phanerochaete chrysosporium extracellular polymeric substance, 4-8 parts of cyanobacteria liquid, 15-20 parts of lignin grafted polyacrylonitrile, 5-10 parts of citric acid, 20-25 parts of straw powder, and 15-20 parts of desulfurized gypsum. The mineral source humus ultrafine powder in the soil desalting agent can improve the air permeability and water permeability of soil and strongly adsorb various heavy metal ions, also has strong water retention and storage capacity, and improves the landform of saline-alkali soil, so that the saline-alkali soil can adapt to more and more plant growth, and the selectivity of agricultural planting is improved.

The invention discloses a technology for preparing Chinese medicinal material polygonatum odoratum decoction pieces. According to the technology, fresh polygonatum odoratum is taken as a raw materialand is properly dried and then processed into pieces, and a layer of edible oil is sprayed on the surface of each polygonatum odoratum slice, so that the water evaporation rate of polygonatum odoratumin the drying process can be reduced, the dewatering uniformity is improved and deformation of the polygonatum odoratum slices is inhibited. Furthermore, the polygonatum odoratum slices are soaked into honey and are subjected to ultrasonic treatment by adopting the honey as a medium, so that the damage effect on cells caused by ultrasound can be reduced; meanwhile, the honey with certain viscosity can reduce the diffusion loss rate of effective ingredients in the damaged cells; the polygonatum odoratum slices absorbing the honey are relatively small in deformation in drying and dewatering processes; the polygonatum odoratum slices are smooth and glossy in surfaces; the polygonatum odoratum slices absorbing a large amount of honey have good tenacity; and breakage or a difficulty in packaging does not occur in packaging, transporting and other processes.

The invention discloses a selenium-rich organic nutrient solution for cultivation of fruit crops, and a preparation method thereof. The selenium-rich organic nutrient solution is prepared from 100-140 parts of selenium-rich protein, 5-10 parts of mineral salt, 15-20 parts of urea, 4-8 parts of a compound growth regulator, 1-4 parts of an anti-evaporation agent and 1-3 parts of an adhesive. The preparation method of the selenium-rich organic nutrient solution comprises the following steps: mixing and stirring prepared selenium-rich protein and water, transferring the mixture into an emulsifier, stirring for 10 minutes under the condition of 1000-1400 r/min, then adjusting the rotating speed to 300-500 r/min, sequentially adding mineral salt, urea, the compound growth regulator, the anti-evaporation agent and the adhesive, and continuously stirring for 4 hours to obtain the selenium-rich organic nutrient solution. The organic nutrient solution has the advantages that the raw material source is economical and environment-friendly, and the organic nutrient solution is easily absorbed by fruit trees.

The invention relates to the technical field of building materials, and discloses a retarded cement, which comprises the following composition by weight ratio of raw materials: 10-15 parts of dicalcium silicate, 12-18 parts of dodecacalcium heptaaluminate, and 3.5-5 parts of calcium aluminum feldspar , 2-4.5 parts of calcium sulfate, 0.5-1.2 parts of aluminum sulfate, 1.3-2.1 parts of soda, 0.1-0.8 parts of sodium chloride, 0.05-0.15 parts of nano-titanium dioxide, and 0.5-1.5 parts of mechanical binder. The use of the retarded cement slows down the evaporation rate of water in the concrete at high temperature, reduces the solidification rate of the concrete, and ensures the molding effect and quality of the concrete.

The invention provides a painting pigment storage box for advertisement design. The painting pigment storage box comprises stirring blades, stirring shafts, a driving device, a box body, a pigment frame and a plurality of pigment grooves, the pigment frame is fixedly installed in an inner cavity of the box body, the pigment grooves are fixedly installed on the pigment frame, one ends of the stirring shafts are fixedly connected with the stirring blades, the other ends of the stirring shafts are in transmission connection with the driving device, the stirring blades penetrate through the side walls of the bottoms of the pigment grooves and are rotationally connected with the side walls of the bottoms of the pigment grooves, and the driving device is fixedly installed in the inner cavity of the box body and located below the pigment frame. According to the painting pigment storage box for advertisement design, different pigments can be rapidly mixed and blended, an advertisement designer does not need to manually stir and blend the pigments, the pigment mixing and blending efficiency is improved, and the problem that an existing pigment storage box is low in stirring efficiency is solved.

The invention discloses a natural sodium bentonite soil moisture conservation and weed prevention ecological pad for railway lines. The natural sodium bentonite soil moisture conservation and weed prevention ecological pad comprises a soil moisture conservation and weed prevention ecological pad body and a plurality of cavity pipes, wherein the soil moisture conservation and weed prevention ecological pad body comprises a hollow cuboid structure and a middle fabric cloth layer, the hollow cuboid structure is defined by a front fabric cloth layer, a back fabric cloth layer, a left fabric cloth layer, a right fabric cloth layer, an upper fabric cloth layer and a lower fabric cloth layer, the middle fabric cloth layer divides the inside of the hollow cuboid structure into a plurality of layers of filling cavities, the filling cavities are filled with natural sodium bentonite; and the plurality of cavity pipes vertically pass through the lower fabric cloth layer, the middle fabric cloth layer and the upper fabric cloth layer, the upper ends of the cavity pipes pass out of the upper fabric cloth layer, the lower ends of the cavity pipes pass out of the lower fabric cloth layer, and a plurality of water passing holes are formed in the cavity pipes. The invention also discloses a manufacturing method of the natural sodium bentonite soil moisture conservation and weed prevention ecological pad for railway lines. The natural sodium bentonite soil moisture conservation and weed prevention ecological pad has the advantages that the water absorption times are high, the moisture evaporation speed is low, the water holding and water retention capability is high, the production cost is low, the manufacturing is simple, the secondary pollution cannot be caused on the soil, in addition, the soil can be improved to a certain degree, and the seedling survival rate is improved.

The invention relates to the technical field of regenerated bricks, and particularly discloses a regenerated environment-friendly water purification brick and a preparation method thereof. The regenerated environment-friendly water purification brick is prepared by mixing a brick making blank material with water and then molding and curing at normal temperature, the brick making blank material comprises the following components in parts by weight: 30-50 parts of carbonized sludge, 12-16 parts of building residue soil, 16-20 parts of regenerated aggregate and 28-32 parts of Portland cement, the carbonized sludge is sludge which is subjected to dehydration and carbonization treatment at 350-370 DEG C, and the regenerated aggregate is sludge which is subjected to dehydration and carbonization treatment at 350-370 DEG C; the recycled aggregate is waste concrete subjected to crushing treatment, and the particle size of the recycled aggregate is 5mm-10mm. According to the water purification brick, carbon particles carried by the carbonized sludge can adsorb pollutants in water, and the water purification brick is prepared at normal temperature, is low in density and easy for water to permeate, and has a better water purification effect compared with a water purification brick prepared in a sintering mode.