61results about How to "Improve hydration efficiency" patented technology

The invention provides a coal mine underground waterproof paint, which is characterized by comprising the following components in part by weight: 13 to 27 parts of re-dispersible latex powder, 30 to 40 parts of cement, 35 to 40 parts of quartz sand, 5 to 10 parts of graphite powder, 5 to 10 parts of fly ash, 4 to 6 parts of vermiculite powder, 4 to 6 parts of expanded perlite powder, 4 to 6 parts of aluminum hydroxide, 2 to 4 parts of magnesium hydroxide, 0.003 to 0.024 part of air entraining agent, and 0.02 to 0.09 part of water reducing agent. Compared with other waterproof paint, the coal mine underground waterproof paint has the advantages of good waterproofing quality, flame resistance, antistatic property, elasticity, good cohesive property with coal, light weight, environmental protection, nontoxicity, easy construction and the like, and is suitable for coal mine underground waterproofing.

The invention relates to a low-heat micro-expansion composite cement and a preparation method thereof. The composite cement comprises the following components: 1-8 parts of a magnesium oxide expanding agent, 25-70 parts of industrial waste residue, 25-70 parts of portland cement clinker, and 1-4 parts of gypsum. The preparation method includes: mixing and grinding the magnesium oxide expanding agent, the portland cement clinker and the gypsum to prepare magnesium oxide expansive cement with a specific surface area of not lower than 300m<2>/kg, then mixing the magnesium oxide expansive cement with the industrial waste residue evenly according to the ratio to prepare composite cement; or burdening and mixing the magnesium oxide expanding agent, the cement clinker, the gypsum and the industrial waste residue in proportion, and carrying out grinding together to obtain composite cement. The composite cement prepared by the method has fineness of 80-micrometer square hole screen residue of less than 10%, and a specific surface area of not less than 300m<2>/kg. The composite cement provided by the invention can generate expansion in the early stage, also can generate expansion in the middle and late stage, simultaneously satisfies compensation of concrete shrinkage in the early stage and the middle and late stage, and prevents shrinkage crack of concrete.

The invention discloses a trench type fish collection front room suitable for different water depth variation amplitudes of a high-head dam and belongs to the field of water conservancy facilities. The trench type fish collection front room comprises a fish collecting and luring system and a water supply system, wherein the fish collecting and luring system mainly comprises a long bottom plate anda sloped bottom plate, a fish-collecting transition section, two fish-collecting retaining walls, two energy dissipation gratings, a break joint type control gate, a fish collection tank and a fish collection inlet; the water supply system comprises a power station tail water outlet counter-slope, a water supply open channel section, a water supply closed conduit section, a water supply outlet section and a fish collection outlet. During the operation of the trench type fish collection front room disclosed by the invention, power station tail water flow serves as fish-luring water flow and water supply flow, the flow and the flow velocity of the fish collection front room are controlled by adjusting relative positions of two rows of vertically arranged cross joints of a cross joint type control gate, fishes are lured to enter the fish collection tank of the fish collection front room, the fish collecting and luring effects are obvious and high-efficiency, and the fish collection frontroom has the advantage of being adaptive to great water level variation amplitude and is suitable for popularization and application in water conservancy projects.

The invention relates to ecological water supplement technology for lakes based on multi-scale wavelet transform, which is characterized by not only well extracting the information of the water level on different scales by applying the excellent performance of multi-resolution analysis of wavelet transform but also reconstructing the wavelet coefficients of main scales and combining other hydrological and ecological data to obtain the division standards of hydrological stages, determining the suitable hydrological stage containing the wet and dry seasons and putting forward a scheme of ecological water supplement for lakes, which simultaneously takes both the minimum ecological water level and the in-year water level fluctuation characteristic into account. Compared with the prior art, the invention is characterized by more deeply discussing the multi-scale characteristic of hydrology, being closer to the natural hydrological conditions of lakes than the single minimum ecological water level of traditional water supplement and providing bases for analyzing the state of the hydrological environment of degraded wetlands, formulating water supplement schemes suitable for specific regions and improving efficiency of water supplement for lakes.

The invention discloses a preparation method of composite cement with low clinker dosage and high flexural compression ratio. The preparation method is to mix three size ranges of powder particles and obtain the composite cement. The three size ranges of powder particles are as follows: 1) the grain size of particles is less than 8mu m, the particles are composed of high-activity supplementary cementing material with the grain size; 2) the grain size of particles is 8-24mu m, the particles are composed of cement clinker particles with the grain size; and 3) the grain size of particles is 24-80mu m, and the particles are composed of low-activity supplementary cementing material or inert filler. The volume percentages of the three size ranges of powder particles are 25-40%, 25-30% and 30-45% respectively. The clinker volume percentage of the composite cement is 25-30%, the 28-day compressive strength is up to 35-50MPa, the flexural strength is up to 10-12Mpa, the flexural compression ratio is 1/3-1/4; and the composite cement has low hydration heat and good anti-cracking capability and can be used in the civil construction/engineering with the demand on the anti-cracking capability.

The invention relates to a skin-repairing facial mask which is prepared from water, butanediol, glycerol, pentanediol, an algae extract, sodium hyaluronate, hydrolyzed collagen, EGF, a helichrysum extract, a matricaria chamomilla extract, glucan, phenoxyethanol, methylparaben, triethanolamine, PE-40 hydrogenated castor oil, carbomer and essence. The skin-repairing facial mask is suitably used for the making-up crowd, particularly females, and the moisturizing efficiency and the absorption efficiency of skin care essence are improved. The skin-repairing facial mask is more convenient to use and better in effect.

The invention discloses a river ecological water demand-oriented multi-water-source optimal configuration method which comprises the following steps: carrying out water resource supply and demand balance calculation on each subarea subjected to regional division by adopting a genetic algorithm to obtain the configuration water quantity of each subarea; calculating the seepage loss amount between the river nodes; carrying out optimization adjustment calculation on the reservoir by adopting a dynamic programming algorithm to obtain a reservoir outbound runoff volume; calculating the ecological water volume and the river leakage of each control section; constructing a multi-objective optimization model, and solving the multi-objective optimization model; and generating water resource configuration schemes and reservoir scheduling schemes of different partitions. According to the method, through reasonable allocation of inter-regional water resources and optimal scheduling of water conservancy projects, water resource allocation schemes and reservoir scheduling schemes under different scenes are generated, the water seepage amount along a river water supplementing line is reduced, the ecological water demand of a downstream section is guaranteed, and therefore the river water supplementing efficiency is improved, the water amount of guided water and the water supplementing cost are reduced, and thus obvious ecological benefits and economic benefits can be generated.

Processes for producing cast-coated papers showing a reduced level of curling after the preparation of the cast-coated papers and reduced curling or wavy deformation caused by moisture absorption or other reasons as well as showing a high surface quality in the cast-coated surface are provided. Thus, processes for producing cast-coated papers comprising the steps of applying a coating color based on a pigment and an adhesive on one side of a base paper, and pressing/drying the coated layer in the wet state against a casting drum mirror surface, wherein moisture is added to the coated paper by passing it through air at a high temperature and a high humidity (for 20 seconds or more) after pressing/drying the coated layer against a casting drum, as well as apparatuses therefor are provided.

The invention relates to a water supplement detecting device, system and method. The device comprises a water level detection module, a first solenoid valve and a controller; the water level detectionmodule detects water level information in a water tank to be detected; the first solenoid valve is mounted on a water supplement pipe of the water tank, and is opened/closed to control ON/OFF of thewater supplement pipe; and the controller controls opening/closing of the first solenoid according to the water level information. Thus, the water level in the water tank is detected automatically, water is supplemented automatically, artificial intervention is not needed, the water supplement efficiency is high, the labor cost is low, and the user experience is high.

The invention discloses thick fermented milk, a raw material composition thereof and a preparation method thereof. The raw material composition of the thick fermented milk comprises raw milk, sweet substance, condensed milk, milk protein powder, a milk fat product and zymophyte. The milk protein powder is the condensed milk protein powder. The content of the milk protein powder ranges from 4.0% to 4.5%. The zymophyte is So-Greek S2. The thick fermented milk with the smooth taste and clean flavor is obtained through technology optimization and raw material screening. Meanwhile, the fermented time is shortened greatly, and the plant capacity is improved.

The invention relates to a preparation method of weak-base excited nickel slag high-strength concrete. The weak-base excited nickel slag high-strength concrete is prepared from the following raw materials in parts by mass: 350-450 parts of nickel slag, 40-50 parts of carbide slag, 20-30 parts of sodium carbonate, 40-50 parts of phosphogypsum, 550-650 parts of ferronickel tailings, 1100-1300 parts of stones, 200-300 parts of water, 5-10 parts of a grinding aid and 5-10 parts of an additive. Nickel slag is subjected to wet grinding treatment, nickel slag particles larger in specific surface area and more concentrated in particle size distribution are obtained to replace a cementing material, a weakly alkaline compound (sodium carbonate) and industrial by-products (carbide slag and ardealite) serve as excitants, and ferronickel tailings serve as fine aggregate. The nickel slag is treated in a wet grinding ultra-refining mode, energy consumption is low, and the grinding efficiency is high. Meanwhile, the sodium carbonate is added, so that metal nickel ions can be effectively cured. The prepared concrete is high in strength and good in volume stability, can effectively solve the problem of carbonization of concrete, and can be widely applied to industrial and civil buildings.

The invention discloses water charging system and method for a head tank. The system comprises a head tank (3), a process tank (5) and a circulation pump (4), as well as a connecting pipe (1) and an isolation valve (2), wherein the connecting pipe (1) is connected between a water outlet main pipe (6) of the head tank and a water outlet main pipe (7) of the process tank, and the isolation valve (2) is installed on the connecting pipe (1). The circulation pump (4) is installed on the water outlet main pipe (7) of the process tank; when water storage is not sufficient, the isolation valve (2) is opened and the circulation pump (4) is started up, and then water stored in the process tank (5) is charged into the head tank. In the invention, water in the process tank is used for charging water for production processing without the influence from outside insufficient water supply and water charging efficiency is improved by more than 10 times.

The invention discloses a reutilized waste plastic composite slag thermal-insulation wall body material and a preparation method thereof. The wall body material is prepared by compositing metal smelting waste such as blast furnace slag, alumina slag, lithium slag, iron tailings with waste plastic. For improving the reutilization effect of the waste plastic, the waste plastic is foamed and is added with an alkaline exciting agent so as to prepare expandable waste plastic particles, the tenacity of a materials can be improved by virtue of the plastic particles, meanwhile, a gelatinization process can be promoted by virtue of the exciting agent carried by the particles, and the compatibility of the plastic particles in a gel material is improved. The wall body material prepared by virtue of the preparation method has high strength and good tenacity, is unlikely to crack and has certain waterproof ability and excellent thermal insulation and sound insulation effects, and the effective utilization of high-adding-quantity slag powder is realized.

The invention discloses a bottle preform water replenisher. The bottle preform water replenisher comprises a rack, a support frame driven by a first power device is slidably mounted on the rack alongan X-axis, and a water replenishing mechanism driven by a second power device is slidably mounted on the support frame along a Z-axis; a bottle preform rotary pressing mechanism is arranged on the rack, and located in the feeding direction of the water replenishing mechanism. The mechanical water replenishing work on a bottle preform is realized, the water replenishing efficiency is improved, andthe labor intensity of workers is greatly lowered; and meanwhile, through movement of the water replenishing mechanism in the X-axis direction and the Z-axis direction, the water replenishing effect of the bottle preform in the height direction and the circumferential direction is ensured, and clearing of the outer surface of the bottle preform can be completed synchronously.

The invention relates to a backpack sprayer. The backpack sprayer comprises a mounting frame, wherein a water pump, a power source, a medical box and a spraying rod are arranged in the mounting frame; the mounting frame is further provided with a communicating piece; the communicating piece is provided with a switching plate; the switching plate is provided with an elastic sealing layer; the communicating piece is provided with a mounting cavity; the switching plate is provided with an abutting piece; a hydraulic channel is arranged in the inner wall of the mounting cavity; an abutting piston is arranged on the inner wall of the hydraulic channel and connected to an abutting block; an annular groove is arranged in the inner wall of the mounting cavity; an annular piston is arranged in the annular groove; a rotating handle allowing people to rotate is fixedly arranged on the switching plate; a limiting piece is arranged on the rotating handle; a limiting groove is arranged in the communicating piece; and a water inlet through opening and a closing piece are arranged on the outer wall of the spraying rod. By arranging the communicating piece and the switching plate, the people can rotate the switching plate to enable the spraying rod to have the capacity of sucking liquid medicine, and the people can supplement the liquid medicine to the sprayer conveniently; and by arranging the water inlet through opening, the water intake of the spraying rod is increased, and the water supplementing efficiency of the sprayer is improved.

The present invention relates to agricultural irrigation apparatus, and is especially one kind of movable irrigator for arid land. The movable irrigator includes one water source, one booster and at least one water injector. The booster has a water inlet connected through pipeline to the water source and a water outlet connected to the water injector. The movable irrigator has obvious water saving effect, high water resource utilizing rate, convenient assembling and disassembling, high soil and land form adaptability, simple structure, high operation efficiency and other advantages.

The invention relates to a method for improving strength and durability of cement-based materials by medium and low frequency vibration. The method comprises the following steps: putting stirred concrete in a four-dimensional space vibrating table, carrying out medium and low frequency vibration treatment till being hardened and formed, thus obtaining the cement-based materials. According to the invention, the medium and low frequency vibration is used for accelerating C3S which is taken as a main mineral in cement to generate a chemical reaction, Ca(OH)2 and C-S-H nucleuses begin to form, the ion concentration of Ca<2+> reaches a supersaturated state, and then vibration occurs to promote C3S to generate a hydration reaction with water so as to shorten the induction period of the cement, furthermore, the deposition and adsorption of hydration products and cement mineral particles are partly destroyed through the vibration to increase the contact area of C-S-H gel and a surrounding water body so as to promote early hydration of the cement, and further increase the hydration efficiency of C-S-H, and then the effects of improving the cement early strength, reducing the cement porosity and increasing the cement compactness are reached.

The invention discloses a rolling mill emulsion system water adding method and a rolling mill emulsion system. The method comprises the steps that a liquid level signal of liquid in an emulsion tank is collected through a liquid level collection element; the liquid level signal is used for representing the liquid level of the liquid; whether the liquid level is lower than a first liquid level threshold value or not is judged according to the liquid level signal; when the liquid level is lower than the first liquid level threshold value, water is added into the emulsion tank; and water is not added when the liquid level is higher than the first liquid level threshold value. According to the method and system provided by the invention, the technical problems that in the prior art, the labor intensity is high, the efficiency is low and the error rate is high due to manual adding of water into the emulsion system are solved. The automatic emulsion water adding method and system with the high efficiency and accuracy are provided for cold rolling production lines.

The invention relates to the technical field of edible mushroom culture, and particularly discloses a water replenishing needle for edible mushroom sticks. The wash replenishing needle comprises a hollow water replenishing needle body with a pointed end, the other end of the water replenishing needle body is connected with a valve, and several water discharging holes are uniformly distributed in the water replenishing needle body; the valve is connected with a water pipeline; the water replenishing needle body is made from a non-metallic material. The water replenishing needle has the advantages that each mushroom stick is embedded with a water replenishing needle which is communicated with the water pipeline, when the edible mushroom sticks need to be replenished with water, the valve only needs to be turned on, the water replenishing efficiency is greatly improved, and the labor intensity is reduced; the water replenishing needle body made from the non-metallic material solves the problem that needles easily rust.

The invention relates to the technical field of flue gas desulfurization equipment. The invention further discloses flue gas desulfurization equipment based on the circulating semi-dry method. The equipment comprises a digestion box, single-shaft stirring blades and a mixing atomization pipe, a heat exchange mechanism is arranged above an inner cavity of the digestion box, one end of the heat exchange mechanism communicates with the water inlet end of the mixing atomization pipe, the heat exchange mechanism is a middle section, communicating with a water outlet of a water pump, of the mixing atomization pipe, and the bottom surface of the heat exchange mechanism makes contact with a desulfurizing agent in the digestion box. The heat exchange mechanism is arranged at the upper part betweenthe two single-shaft stirring blades of the digestion box; the heat exchange mechanism is communicated with the mixed atomizing pipe; water flowing through the heat exchange mechanism absorbs heat inthe digestion box and brings the heat to the mixed atomization pipe; by means of the arrangement, heat generated in the equipment can enter a flue gas reactor through a desulfurizing agent outlet in time, so that the evaporation effect on the residual water amount in the flue gas desulfurization reaction process is improved, and energy is reasonably utilized.

The invention relates to the technical field of water electrolysis hydrogen production equipment, in particular to a water replenishing device and method for a water electrolysis hydrogen production system, and the water replenishing device comprises a water tank, a first valve, a second valve, a third valve, a fourth valve, a pressure stabilizing valve, a water supply pipeline, a pumping device, a water outlet pipeline and at least one water conveying pipeline; by means of the one-to-many design concept, the use number of the pumps can be effectively reduced, the equipment cost is saved, meanwhile, by means of the design scheme that one pump is used and one pump is standby, the problem that the whole water supplementing device cannot be used due to the fact that a single pump goes wrong is effectively solved, the pressure maintaining valves connected in parallel are arranged in the pumping loop, and normal use of the pumps can be guaranteed when backward-stage water supplementing is abnormal. In addition, independent water replenishing of the hydrogen separator and the oxygen separator can be effectively achieved through logic control of the control system, the risk of hydrogen and oxygen mixing is avoided, and the safety and stability of operation of the water replenishing device and the hydrogen production system are improved.