501results about How to "Improve antifreeze effect" patented technology

The invention relates to a method to improve the antifreeze ability for air condition. It includes the following steps: minimum water flow would be controlled by a flow controller at water outlet, setting an antifreeze value, when water temperature lowering than the value, the set would stop running and output alarm. If the water temperature at water intake is lower than a set temperature value, and the temperature difference at outlet and intake exceeding a set value, and lasting for a time span, it would be judged as not enough water flow. The machine would be stopped and output alarm.

The invention discloses an anti-freeze aerated concrete brick. The anti-freeze aerated concrete brick is prepared from the following raw materials in parts by weight: 35-40 parts of fly ash, 15-20 parts of cement, 15-20 parts of wollastonite powder, 5-10 parts of modified straw ash, 2-4 parts of gypsum, 0.05-0.1 part of aluminum powder, 2-4 parts of urea, 0.01-0.03 part of oxyparaffin soap, 1-2 parts of sugar calcium, 4-6 parts of calcium formate, 0.1-0.5 part of polyethylene wax powder, 4-6 parts of calcium carbonate, 0.2-0.4 part of calcium nitrate, 0.1-0.2 part of sodium acetate and right amount of water.

The invention relates to a non-aqueous coolant for an engine, which is characterized by comprising the following components in percent by weight: 10-80 percent of ethylene glycol, 10-80 percent of propylene glycol, 5-20 percent of polyol, 0.1-0.8 percent of phosphate-molybdate, 0.2-0.9 percent of silicate ester, 0.1-1 percent of 4-methyl 1H-benzotriazole, 0.2-0.8 percent of citric acid, 0.2-1 percent of sebacic acid, 0.1-1 percent of octanoic acid, 0.4-1.2 percent of citrate and 0.01-0.2 percent of cosolvent. The non-aqueous coolant has freezing point of -30--50 DEG C and boiling point of 130-150 DEG C, and ensures that the cold start of the engine is realized in cold weather; meanwhile, the working temperature of the engine is improved to 95-150 DEG C from the original 85-95 DEG C. The non-aqueous coolant belongs to a non-aqueous system, avoids electrochemical corrosion, and is a buffer system with pH of 7.5-9.5; and the added relevant auxiliaries have active corrosion resistance on aluminum and aluminum alloy and copper.

In the invention, two kinds of waste material dry dust discharging coal ash and desulfurize gyp produced by power plant burning sub-bituminous coal or lignitous coal are used as main composition, shell and or cement, calcined gypsum and aluminum sulfate or alunite are used as secondary composition, they are prepared to dry powder soil curing agent by weighing, matching, forced stirring and mixing. The soil can be concreted by mixing a proper quantity of curing agent into the soil and processes of stirring, compacting, soaking and maintaining.

The invention discloses a rapid hardening high-strength grouting material, which consists of the following components in percentage by weight: 40 to 55 percent of fast hardening sulphoaluminate cement, 40 to 55 percent of quartz sand, 1 to 5 percent of silicon micro-powder, 2 to 5 percent of high-calcium powder, 0.6 to 1.0 percent of FDN water reducer, 1 to 3 percent of anhydrite powder, 0.02 to 0.14 percent of lithium carbonate, and 0.2 to 1.4 percent of sodium chloride. The components are uniformly mixed, and stirred with water in a water / cement ratio of 0.14-0.18, and the grouting material can be used after uniform stirring. The grouting material is suitable for low-temperature construction, and has the characteristics of early strength, high strength, good flowing performance, no shrinkage, good anti-freezing effect and the like.

The present invention relates to one kind of stuffing for roasted food and its preparation process. The stuffing consists of sugar 10-30 wt%, modified starch 0-11 wt%, hydrophilic colloid 0.1-0.6 wt%, steamed monoglyceride 1-5 wt%, potassium sorbate 0.01-0.1 wt%, food water preserver 5-30 wt%, edible essence and / or edible color 0.2-0.5 wt%, and water for the rest, with water content being less than wt%. The stuffing has the synergistic effect of colloid and modified starch, high flowability, high water preserving capacity, high freezing resistance and stable quality, and the roasted food with the stuffing has good taste.

The invention relates to the field of building materials, and in particular relates to a concrete material for paving a road surface and a preparation method of the concrete material. The concrete material for paving the road surface comprises the following components, namely a gel material, aggregate and additives; the gel material consists of iron tailings, blast furnace slag, cement clinker and gypsum; the aggregate consists of waste rubber powder treated by NaOH, sand and pebbles; the additives comprise an air entraining agent, an early strength agent and a water reducing agent; and the waste rubber powder is neutral rubber powder which is a rubber powder suspension treated by using NaOH. The concrete material disclosed by the invention has the beneficial effects of achieving reasonable utilization of waste resources, effectively utilizing the iron tailing, waste rubber powder and other resources, solving the problem of treating the iron tailings, improving the performances, such as impact resistance, antifreezing property and anti-cracking property of concrete on the basis of saving the production cost, and prolonging the service life.

The application provides a starch adhesive. The starch adhesive is prepared from the following components in parts by weight: 50 to 150 parts of nanocellulose suspension, 50 to 150 parts of starch, 1to 10 parts of an oxidant, 20 to 80 parts of polyvinyl alcohol, 0.01 to 5 parts of a surfactant and 0.25 to 10 parts of a crosslinking agent. The starch adhesive has good properties including good waterproof performance, good storage stability, excellent initial adhesion, great adhesion, good flowability and good coagulation resistance. The application further provides a preparation method of thestarch adhesive. The preparation method comprises the following steps: (1) preparing the nanocellulose suspension, preparing a polyvinyl alcohol solution and preparing a dialdehyde starch solution; and (2) mixing the dialdehyde starch solution, the nanocellulose suspension, the polyvinyl alcohol solution and the crosslinking agent and stirring and reacting with certain pH value and temperature toprepare the starch adhesive. According to the method provided by the invention, starch and waste paper products are used as raw materials, aldehyde substances are not added in a reaction process and water is used as a solvent; and a production technology and a product have an environment-friendly property and all the raw materials can react sufficiently.

The invention relates to a single-component moisture-curing polyurethane adhesive for a car roof and a preparation method thereof. The obtained adhesive has the advantages of low application temperature, rapid curing speed and convenience in application. By introducing an ethylene oxide chain link in the adhesive molecular structure, the probability of reaction of the NCO groups with water in the later stage is increased, and then by combination with a composite catalyst, the latter curing speed is greatly improved; by adding No. 6 solvent oil, the anti-freezing performance of the adhesive is improved, and the storage is also more stable; and by adding a certain amount of a water removal agent, the effect of water in raw materials and the environment on the stability of the adhesive is eliminated.

The invention relates to a freeze-prevention direct air cooling condenser which is suitable for a heat power station lacking of water sources and a turbine direct air cooling condenser system. The freeze-prevention direct air cooling condenser comprises a steam distributing pipe (1), draught fan units (2), a condensing water channel (3), a vacuum-pumping system (4) and a condensing water pipeline, wherein a fair current heat-transfer tube bundle (2.1) is arranged in the middle of each of the plurality of draught fan units (2), reverse current heat-transfer tube bundles (2.2) are arranged at partition walls positioned at both sides of each draught fan unit (2), the fair current heat-transfer tube bundles (2.1) are respectively communicated with the steam distributing pipe (1) and the condensing water channel (3), and the reverse current heat-transfer tube bundles (2.2) are respectively communicated with the condensing water channel (3) and the vacuum-pumping system (4). The invention can eliminate the root of the freeze of a system, i.e. steam refluence is generated between fin heat exchange tubes due to unbalanced pressure to enable uncondensed gas to be accumulated in the middle of heat-transfer pipes so as to enable upper-part condensing water to be frozen due to supercooling when passing through the uncondensed gas when downwards flowing along the heat-transfer pipes.

The invention relates to an environmentally-friendly antibacterial powder coating, belonging to the technical field of coating material and aiming to solve the technical problems that the antibacterial function of the coating in the prior art is single and the antibacterial capacity ceases to be effective quickly. The environmentally-friendly antibacterial powder coating mainly comprises the following raw materials by weight: 30-40% of polyester, 30-40% of epoxy resin, 0.5-1.5% of a leveling agent, 0.5-1.5% of a brightening agent, 8.0-16% of an anion generating agent, 8.0-12% of a coupling agent, 2.0-4.0% of an antibacterial agent and 3.0-6.0% of a cross-linking agent. The coating can generate anions of about 1,000 / cm<3> and has a good antimicrobial effect, the antibacterial rate of more than 95% and the multiple effects of causing less pollution to the environment.

The invention relates to a super wear-resistant metal powder coating, and belongs to the technical field of coating materials. Aiming to solve the technical problems of poor wear resistance and low product hardness in the prior art, the invention provides the super wear-resistant metal powder coating which is mainly prepared from the following components by weight percent: 25 to 35 percent of polyester; 25 to 35 percent of epoxy resin; 0.5 to 1.5 percent of flatting agent; 0.5 to 1.5 percent of brightening agent; 5.0 to 15 percent of super wear-resistant additive; 1.0 to 3.0 percent of silver powder; 15 to 20 percent of coupling agent; and 5.0 to 10 percent of crosslinker. After being coated with the coating provided by the invention, the surfaces of products achieve high hardness which can be above 3H, and after rubbing against each other for thirty times, the surfaces of the products are not abraded, thereby having strong wear resistance; and the super wear-resistant metal powder coating has high stability and cohesiveness.

The invention relates to an antifreeze agent for diluting pig sperm, pertaining to the technical field of animal breeding. The antifreeze agent is prepared by N-acetyl-D-dextrosamine, hyaluronic acid, amido-sodium-lauryl sulfuric ester, glucose, trihydroxymethyl aminomethane, sodium citrate, sodium bicarbonate, potassium chloride, bactericide, distilled water and the like, wherein, the N-acetyl-D-dextrosamine can stimulate the emulsification function of the amido-sodium-lauryl sulfuric ester, enhances the protection function of the amido-sodium-lauryl sulfuric ester and yolk, the hyaluronic acid and the amido-sodium-lauryl sulfuric ester can effectively inhibit the damage rate of freezing and thawing sperm plasma membrane and DNA and improve the quality of freezing and thawing sperm, the glucose is the energy source for metabolism in vitro of the sperm, and the sodium citrate can maintain the osmotic pressure balance between diluted antifreeze agent environment and the internal environment of the sperm. The antifreeze agent for diluting pig sperm can effectively prolong the survival time of pig sperms for ultra-low temperature cryopreservation, and improve the liveliness of the freezing and thawing pig sperms, the integrity of plasma membrane and the integrity of acrosome.

The invention discloses a high-temperature-resistant, high-sugar-resistant and freezing-resistant high-resistant yeast strain and a preparation method thereof. The preparation method comprises the following steps: over-expressing a complete sequence of H / ACA snoRNA (SNR84) by selecting and using a strong promoter PGK1 in a parent yeast strain to obtain the high-resistant yeast strain. The cell activity of the strain is remarkably improved in high-temperature, high-sugar and freezing environments in comparison with that of the parent strain. Saccharomyces cerevisiae are good in high-temperature resistance in heat shock treatment, high-sugar resistance in high-sugar dough and freezing resistance in frozen dough, the technical obstacle and the quality detect in a bread making process are overcome, and the application prospect is wide.

The invention discloses a road asphalt pavement, comprising a powdery fine sand roadbed layer, wherein a leveling course is paved on the powdery fine sand roadbed layer, a gravel base coarse is paved on the leveling course, an efficient fireproof rubber layer is arranged on the gravel base coarse and is connected with a heat insulation layer, a steel fiber self-compaction concrete layer is paved on the heat insulation layer, an asphalt surface layer is paved on the steel fiber self-compaction concrete layer, a skid resistant course is smeared on the asphalt surface layer, and an antifreezing and waterproof berm is arranged at each of two sides of the powdery fine sand roadbed. The antifreezing and waterproof berm is arranged at each of the two sides of the roadbed, so that the stability, water resistance and antifreezing property of the roadbed are enhanced; and the steel fiber concrete composite material is adopted, so that the tensile strength, the bending resistance, the impact resistance and fatigue resistance of concrete are significantly improved, the concrete has relatively good ductility, and the quality of the roadbed is ensured; and asphalt is modified by virtue of reasonable proportions, and the obtained asphalt has the advantages of relatively low temperature sensitivity, relatively good high-temperature and low-temperature properties, aging resistance, long service life, stripping resistance and the like.

The invention provides an anti-freezing sewage collection system. The anti-freezing sewage collection system comprises a water storage tank, a water supply pipe, a water consuming device and a sewage tank, wherein the water storage tank supplies water to the water consuming device through the water supply pipe. The anti-freezing sewage collection system further comprises a gas supply device for generating compressed gas, wherein a gas supply pipeline of the gas supply device is communicated with the water supply pipe, a valve is arranged on the water supply pipe on the upstream of the communication position, a valve is also arranged on the gas supply pipeline, and the gas supply device can inject the compressed gas into the water supply pipe and empties a water supply pipeline on the downstream of the water supply pipe. The invention further provides a method for emptying the water supply pipeline of the anti-freezing sewage collection system. By means of the anti-freezing sewage collection system, the water supply pipeline can be emptied, residual water in the water supply pipeline is prevented, pipeline blockage caused by the freezing of the residual water are avoided, and therefore a better ant-freezing effect is achieved.

The invention discloses a water-based nano thin-coating heat preservation paint and a preparation method thereof. The paint comprises the following raw materials by weight: 30-40 parts of an acrylic emulsion, 5-10 parts of titanium dioxide, 20-40 parts of hollow glass beads, 5-20 parts of aerogel and 5-10 parts of a film-forming assistant. According to the invention, the hollow glass beads and aerogel are used as the heat insulation basic raw materials, the heat conductivity coefficient of the paint is greatly reduced and is as low as 0.031-0.035W / m.K, and the paint can reach a remarkable heatinsulation effect under the condition of a very small construction thickness. Meanwhile, the hollow glass beads and the aerogel are conducive to improving the chemical stability of the paint itself,thus improving the covering power, lightening power, corrosion resistance, light resistance and weather resistance, and enhancing the mechanical strength of the paint; cellulose, a wetting dispersant,a defoaming agent and a preservative are mixed; by virtue of ethylene glycol, the acrylic emulsion and a pH regulator, the paint has excellent cohesiveness, weather resistance, film-forming properties, gloss and color retention and mechanical properties; and the use of a vinyl chloride-vinylidene chloride copolymer emulsion also can reach a grade A1 flame retardant effect.

The invention relates to a concrete pumping antifreezing agent with adjustable performances, belonging to the field of building materials. The concrete pumping antifreezing agent comprises the following materials by weight percent: 28% -42% of water reducing agent, 0.3%-0.7% of air entraining agent, 0.05%-0.07% of fluidizing reagent, 1.5%-2.5% of reinforcing agent and 2.0%-3.0% of antifreezing agent, 1.5%-5.0% of slump loss inhibitor and 45%-65% of water, and the concrete pumping antifreezing agent is a novel pumping antifreezing agent and does not contain any chloride. The concrete pumping antifreezing agent is simple in production process, does not contain alkali and chlorine, and cannot corrode a steel bar. The concrete pumping antifreezing agent has the advantages that the peaceability of concrete is improved substantially, the volume is stable, the water-reducing rate is high, the anti-freezing performance is high, the early-strength performance is obvious, the increasing value of the later-stage concrete strength is high, the adaptability is good, and the like, and has good pumpability in the construction. The concrete pumping antifreezing agent is low in cost, good in performance and has good economical benefits and social benefits.

The invention belongs to the field of coating composition, in particular relates to a preparation method of an antimicrobial coating based on shell powder. The preparation method comprises the steps of performing desalination and degreasing treatment, drying treatment, high temperature puffing calcining treatment, cooling treatment and crushing treatment on shells firstly to obtain the shell powder; adding a drying adjuvant additive and a binder in the shell power, stirring and treating the shell power to obtain the antimicrobial coating. According to the preparation method, the natural shell power is adopted as a main raw material, so that the antimicrobial coating has an obvious antimicrobial effect, is safe and without toxicity, and is suitable for a various of trees; all raw materials are in reasonable proportion, the antimicrobial coating has a good antimicrobial effect, is harmless to a human body and the environment, and the harm of an existing antimicrobial coating to trees and the environment can be overcome.

The invention discloses a low-temperature early strength non-steam-cured concrete prefabricated member and a production method thereof. The low-temperature early strength non-steam-cured concrete prefabricated member comprises, by weight, 400-550 parts of Portland cement, 30-70 parts of wollastonite powder, 50-150 parts of slag powder, 800-1100 parts of crushed stone, 600-750 parts of medium sand,160-180 parts of water, 3.6-6.0 parts of an early strength water reducer, and 20-50 parts of a composite early strength agent; the composite early strength agent, the early strength water reducer, the Portland cement, the wollastonite powder and the slag powder are mixed at the low temperature of -5 DEG C to 10 DEG C to prepare the concrete prefabricated member free of steam curing at the low temperature; the production method is simple, the prefabricated member is suitable for the production of double-sided superposed concrete shear walls, prefabricated wall boards, prefabricated floor slags, prefabricated beams and other building materials, energy is saved, pollution is reduced, the production cycle is shortened, production efficiency is improved, and the prefabricated member and the production method thereof meet the need of building industry for sustainable development.

The present invention discloses a blueberry tablet candy with beautifying and antibacterial efficacy and a preparation method thereof, and belongs to the technical field of deep processing of blueberry. The method is as below: processing a main raw material blueberry into a blueberry syrup by using a non-thermal for processing method; uniformly mixing the blueberry syrup with milk, sugar, a herb extract, honey and a stabilizer; adding a leavening agent; fermenting by a segmented variable temperature fermentation method to prepare a blueberry yogurt, so as to maximize proliferation of probiotics and gain good thermal stress ability of resistance to coldness and hotness; then adding a protecting agent with good anti-freezing effect and freeze-drying into a powder, so as to obtain a functional blueberry yogurt freeze-dried powder with high content of viable probiotics and strong resistance to coldness and hotness; finally compounding the blueberry yogurt freeze-dried powder with an alfalfa extract, germinated brown rice, a plant extract, dextrin, probiotic factor and magnesium stearate scientifically; and tabletting by a multi-impact rotary tabletting machine to obtain the blueberry tablet candy with high probiotic live bacteria content, good stability, long shelf life and the efficacies of improving the body's immunity, delaying aging, beautifying and resisting bacteria.

The invention discloses a cement-based high-temperature-resistant grouting material, which belongs to the technical field of grouting materials. The cement-based high-temperature-resistant grouting material is prepared from the following raw materials in parts by weight: 100 parts of cement, 120 to 130 parts of quartz sand, 50 to 60 parts of coal ash, 15 to 16 parts of silicon powder, 4 to 7 parts of titanium boride, 12 to 14 parts of carbon fibers, 20 to 25 parts of steel fibers, 20 to 30 parts of water glass, 5 to 8 parts of expanding agent, 1 to 3 parts of water reducing agent, 1 to 2 parts of defoaming agent, 2 to 5 parts of antifreezing agent, 0.5 to 1.5 parts of early strength agent, and 0.5 to 0.8 part of retarder. The invention also discloses a preparation method of the cement-based high-temperature-resistant grouting material. The cement-based high-temperature-resistant grouting material is simple in preparation, high in high temperature resistance, high in strength and long in service life.

The invention discloses a self-friction heat generation type petroleum pipeline anti-freezing device, and belongs to the field of petroleum pipeline anti-freezing. External wind energy is used for driving a vertical shaft windmill and a magnetic adjusting plate to rotate; through continuous rotating of the magnetic adjusting plate, magnetic acting force between the magnetic adjusting plate and heat generating rings changes circularly and repeatedly, the pair of heat generating rings close to the magnetic adjusting plate are caused to move back and forth constantly, and meanwhile, because equivalent magnetic force exists between adjacent heat generating rings, magnetic force balance between the heat generating rings is broken due to the moving of one heat generating ring, other heat generating rings are caused to move, the purpose of friction movement of a plurality of heat generating rings being driven by one heat generating ring is realized, and a large amount of heat is generated bycontinuous friction between first and second friction rings and the heat generating rings; and moreover, friction heat is also generated in the heat generating rings in the moving process, heat is transferred to heat conducting liquid through heat generation in two forms of friction so as to increase the temperature of the heat conducting liquid, and spontaneous heat preservation and anti-freezingof a petroleum pipeline are realized.

The invention discloses an anti-crack and anti-falling coating and a preparation method, which belong to the technical field of coatings. The coating is prepared from the following components: modified polyurethane, modified epoxide resin, glass fiber, aluminum oxide, sodium stearate, paste attapulgite clay, putty cream, kieselguhr, a defoaming agent, a filling agent, pigment, and appropriate amount of water. The preparation method comprises the steps of weighing the modified polyurethane and the modified epoxide resin, adding into a reaction kettle, adding appropriate amount of water, and carrying out mixed reaction to obtain a mixture a1; adding the paste attapulgite clay, uniformly stirring, putting in an ultraphonic condition, and obtaining a mixture a2; adding the putty cream, the kieselguhr, the defoaming agent and the filling agent, stirring, shearing, adding a pigment, and uniformly mixing to obtain the coating. The coating provided by the invention not only has a better waterproof and anticorrosion effect, but also has a better anti-crack and anti-falling performance. In addition, the preparation method is simple and practicable, and has a better application value.

The present invention discloses one kind of automatic tyre repairing fluid, named as Loulike. The automatic tyre repairing fluid is prepared with glycol 48.0-54.0 wt%, butadiene-acrylonitrile rubber powder 2.5-4.0 wt%, Chinlon fiber 1.25-1.70 wt%, bentonite gel 0.5-1.5 wt%, carboxymethyl cellulose 0.60-0.70 wt%, sodium nitrite 0.20-0.30 wt%, borax 0.20- 0.30 wt%, and dimethyl silicone oil 0.15-0.20 wt%. The automatic tyre repairing fluid may be used in repairing holes of different sizes in different types of tyre, and has the advantages of long service life, high weather resistance, no corrosion to tyre and fittings, no toxicity, no pollution and nonburning.

The present invention discloses a blueberry pressed candy with high contents of viable probiotics and a preparation method thereof, and belongs to the technical field of deep processing of blueberries. The preparation method includes: processing blueberries serving as raw materials into blueberry pulp by a non-thermal processing method, evenly mixing the blueberry pulp with milk, saccharose, Chinese herbal medicine extract, honey and stabilizing agents, fermenting the mixture with the addition of fermentation agents and preparing the fermented mixture into blueberry yogurt using a stage temperature shift fermentation method so as to maximize the proliferation of probiotics and to make the probiotics have good resistance to cold and heat stress, freeze-drying the blueberry yogurt into powder with the addition of protective agents with a good anti-freeze effect to obtain functional blueberry yogurt freeze-dried powder with high contents of viable probiotics and strong resistance to cold and heat, and finally scientifically compounding the functional blueberry yogurt freeze-dried powder with alfalfa extract, germinated brown rice, plant extract, dextrin, probiotic factor, magnesium stearate, etc., and pressing with a multi punch rotary tablet pressing machine to prepare the blueberry pressed candy. The blueberry pressed candy is high in contents of viable probiotics, and long in shelf life, can improve human immunity and delay senescence, and has effects in beautifying countenance and maintaining beauty and resisting bacteria.

The invention discloses a heating device for a ship escape channel and the ship escape channel. The heating device comprises a bracket assembly and a heating assembly, wherein the bracket assembly is mounted on a deck of the ship escape channel, and comprises a bracket and supporting legs used for supporting the bracket; the ends, far away from the bracket, of the supporting legs are connected with the deck; and the heating assembly is detachably mounted on the bracket. In the heating device disclosed by the invention, the supporting legs are welded onto the surface of the deck, thereby avoiding the phenomenon that the using stability of the ship escape channel is influenced due to moving of the stepping surface of the ship escape channel; the heating assembly is detachably mounted on the bracket, so that the maintenance and the replacement are convenient when the heating assembly is damaged; and a hollow structure is formed between the heating assembly and the deck, and heat transfer from the heating assembly to one side of the deck can be reduced through the hollow structure, thereby improving the heating and freeze-proof effects of the ship escape channel.

The invention discloses continuous casting crystallizer covering slag for ASP medium-carbon steel and a preparation method thereof. The covering slag comprises the following raw materials in percentage by weight: 0-6% of glass powder, 10-30% of premelting materials, 10-30% of wollastonite, 10.5-15.5% of fluorite, 4-8% of white alkali, 4-8% of carbon black, 4.5-8.5% of graphite, 0-5% of sodium fluoride, 5-8% of manganese carbonate, 4-9% of magnesia, 8-12% of bauxite, 0.5-3% of cryolite, 1-3% of adhesive, and 0.3-1% of water reducing agent. The covering slag optimizes the ratio, guarantees a certain melting speed while guaranteeing the insulation effect, has a certain liquid slag layer thickness, is uniformly consumed, guarantees smooth actuation of a continuous casting process, and produces an excellent casting blank.

The invention discloses tap water supply equipment with an anti-freezing function for severe cold areas. The tap water supply equipment comprises a water pipe and a connecting box, wherein the connecting box is cylindrical, the connecting box and the water pipe are coaxially arranged, and the inner diameter of the connecting box is larger than the outer diameter of the water pipe; assembling holesare formed in the two ends of the connecting box, the water pipe sequentially penetrates through the two assembling holes, and the water pipe and the inner walls of the assembling holes are sealed and fixedly connected; at least two anti-freezing mechanisms and at least two auxiliary mechanisms are arranged in the connecting box, wherein the anti-freezing mechanisms correspond to the auxiliary mechanisms in a one-to-one mode, and the anti-freezing mechanisms are evenly arranged in the circumferential direction with the axis of the water pipe as the center; and each anti-freezing mechanism comprises a power assembly, a rotating disc, a friction disc, two heat conduction rods and two heat conduction holes. According to the tap water supply equipment with the anti-freezing function for the severe cold areas, the anti-freezing function through the anti-freezing mechanisms can be achieved, and in addition, a snow removing function can be achieved through the auxiliary mechanism.

The invention relates to an antifreezing water reducing agent and a preparation technique thereof. The antifreezing water reducing agent is composed of a main material and an antifreezing agent which accounts for 10 wt% of the main material. The main material is composed of the following components in parts by mass: 100-120 parts of aliphatic water reducing agent, 150-180 parts of sodium metaphosphate and 10-20 parts of early-strength admixture. The antifreezing agent is composed of the following components in parts by weight: 0.5-1.5 parts of air entraining agent, 3-8 parts of calcium magnesium acetate, 1-8 parts of sodium 2-mercaptoethane sulfonate, 2-5 parts of tetrapolyethyleneglycol monooctyl ether, 10-15 parts of nano diatomite and 5-10 parts of rigid fiber. By adding the antifreezing agent and pine wood extract, the antifreezing water reducing agent has the advantages of favorable water-reducing effect, higher slump0retaining strength, bleeding prevention, favorable antifreezing effect and strong slow-release effect, increases the strength of concrete and saves the enterprise cost.