44results about How to "Antifreeze effect" patented technology

The invention discloses an all-year ventilation treatment air conditioning unit for a dry-heat cold climate region. The all-year ventilation treatment air conditioning unit comprises a ventilation airduct, an air return air duct and a heat recovery device, wherein the ventilation air duct is sequentially provided with a ventilation opening, a ventilation filtering section, a preheating section, asurface cooling section, a ventilation direct evaporation section, a heating section and an air supply fan section, and the air return air duct is sequentially provided with a return air inlet, an air return filter section, a ventilation direct evaporation section and an exhaust fan section; the heat recovery device is arranged between the preheating section and the surface cooling section in theventilation air duct, and the heat recovery device is arranged between the direct evaporation and the exhaust fan section in the air return air duct. The invention further discloses an application method of the all-year ventilation treatment air conditioning unit for the dry-heat cold and cold climate region. According to the all-year ventilation treatment air conditioning unit and for the dry-heat cold and cold climate region and application method thereof, a set of ventilation treatment machine air conditioning unit can be shared in winter and summer, the use is safe and reliable in all-year, the all-year ventilation energy consumption is less, the operation is economical and environment-friendly, and the quality of indoor air in winter is fully guaranteed.

The invention provides a cement mineralizer and a preparation method thereof, and relates to the technical field of cement preparation. The cement mineralizer comprises the following ingredients in parts by weight: 15 to 25 parts of triethanolamine, 10 to 15 parts of diethanolisohydramine, 5 to 15 parts of triisopropanolamine, 2 to 5 parts of an auxiliary agent, 2 to 5 parts of a stabilizer, 1 to 3 parts of lignin calcium sulfate, 1 to 3 parts of molasses, 2 to 5 parts of urea, 5 to 20 parts of water and 60 to 80 parts of industrial waste residues. The preparation method comprises the following steps: weighing corresponding parts by weight of raw materials, mixing triethanolamine, diethanolisohydramine, triisopropanolamine, the auxiliary agent, the stabilizer, lignin calcium sulfate, molasses, urea, polyol and water, and uniformly stirring to obtain a mixture; and adding the industrial waste residues and limestone powder into the mixture, uniformly stirring, and standing for 2-3 days to obtain a finished product. The prepared cement mineralizer can uniformly distribute cement particles and improve the early and later strength of cement.

The invention discloses bare concrete. The bare concrete is characterized by being prepared from, by weight, 5-10 parts of surface modified nano-boron fiber, 5-10 parts of kaolin, 10-15 parts of illite powder, 20-30 parts of gravel, 5-10 parts of vermiculite sand, 20-30 parts of silver sand, 40-50 parts of Portland cement, 1-5 parts of a compound additive and 20-30 parts of water. The compound additive comprises, by weight, 20-25 parts of a phosphate borate copolymer, 2-5 parts of zinc citrate, 1-3 parts of pyrophyllite powder, 1-3 parts of wollastonite powder, 2-4 parts of porous magnesium silicate, 0.5-1 part of a defoaming agent, 0.8-1.5 parts of polyaminopropyl biguanide, 0.5-2 parts of hydroxypropyl cyclodextrin, 1-3 parts of an activator and 80-100 parts of water. The invention further discloses a preparation method of the bare concrete. The bare concrete is high in compressive strength, good in corrosion resistance, impermeability and crack resistance and excellent in comprehensive performance, and production and application are safe and environmentally friendly.

The invention discloses emulsified asphalt and a preparation method thereof. The emulsified asphalt comprises asphalts, cationic emulsifiers, zwitterionic emulsifiers, a non-ionic emulsifier, alcohols and water, wherein the alcohols are one or more of ethanol, propanol, isopropanol and tert butyl alcohol. The emulsified asphalt has the following advantages: through synergistic action of the compound emulsifier and lower fatty alcohols, without adding such diluents as diesel or kerosene, the emulsified asphalt can be used for shortening the time of moisture volatilization, speeding up mixture hardening and improving the frost resistance, is not frozen at minus 5-minus 25 DEG C, maintains such excellent properties of the original asphalts as caking property and can be used for avoiding low-temperature shrinkage crack or freeze thawing and looseness of a mixture in winter. The emulsified asphalt is used for highway maintenance and repair.

The invention discloses an intelligent electromagnetic flow sensor, and relates to the technical field of electromagnetic flow sensors. The intelligent electromagnetic flow sensor comprises a measuring tube, a heating box, excitation coils, a connecting tube and a converter; the heating box is fixedly installed at the bottom of the measuring tube, and the two excitation coils are fixedly installedat the top and the bottom of the measuring tube respectively and can generate a constant magnetic field on the cross section of the measuring tube; an induction electrode is further fixedly installedon the measuring pipe and can induct charged particles in fluid, an induction electrode is connected with the converter through the connecting tube, the converter is fixedly installed on the measuring tube through the connecting tube, and a high-performance microprocessor is adopted in the converter. The intelligent electromagnetic flow sensor is reasonable in structure and easy to use and has agood anti-freezing effect; The intelligent electromagnetic flow sensor has a basic filtering effect, can be flexibly taken out to be cleaned after being used for a period of time, the multi-functionaldisc has an inner wall cleaning function, and the sensor is diversified in function and high in economic value.

The invention discloses anti-freezing emulsified asphalt and a preparation method thereof. The emulsified asphalt composition comprises basic asphalt, emulsifier, alcohol and water. The alcohol is one or more of ethanol, propanol, isopropanol and tertiary butanol. Lower fatty alcohols are adopted for the emulsified asphalt without adding diluents, for example, diesel oil or kerosene, thereby the time of water evaporation is shortened, the hardening rate of mixture is increased, the anti-freezing property is improved (the emulsified asphalt cannot be frozen at 5 DEG C below zero to25 DEG C below zero), excellent properties such as the cohesiveness of original asphalt are maintained, and crazing due to contraction of the mixture at low temperature in winner or unconsolidation due to freeze thawing are avoided. The anti-freezing emulsified asphalt can be used for the maintenance of roads.

The invention belongs to the technical field of antifreezing agents for fruit trees and specifically relates to an environment-friendly antifreezing agent for the fruit trees and a preparation methodof the antifreezing agent. The invention provides the environment-friendly antifreezing agent for the fruit trees and the preparation method thereof, aiming to overcome defects in the prior art. According to the preparation method, algal polysaccharides and plant-sourced small-molecule polypeptide are prepared into a nano-like lipidosome solution, prohexadione calcium is prepared into nano microcapsule dispersion liquid, and he environment-friendly anti-freezing agent for the fruit trees is formed through the nano-like lipidosome solution, the nano microcapsule dispersion liquid, glycerinum, vitamin E, sodium alginate, 50 wt% aqueous polyethyleneimine (PEI) solution and mannitol. The prepared antifreezing agent can achieve quick-acting and long-acting antifreezing effects, is applicable tomultiple economic crops, such as apple trees, tea, mulberries, strawberries, grapes and various flower and fruit seedlings, and has the antifreezing effect especially for flower buds, sprouts and leaves of the apple trees and the like.

The invention discloses a prevention and treatment method of the freezing damage of loquat flower and fruit, which comprises the following step of: spraying a CaCl2 (calcium chloride) solution with the concentration of 1-3g / L to a crown of a loquat tree 3-5 days before the coming of frosty weather with the daily minimum temperature of below zero DEG C or the daily highest relative humidity of larger than or equal to 95% according to the weather forecast during the during the period of blossom and fructify of the loquat tree in autumn and winter. When the method is adopted, the influence on loquat due to the freezing damage can be effectively reduced; loss is reduced; the period of growth and recovery of the loquat after the freezing damage is shortened; the fruit quality of the loquat is improved; the yield is increased; the method is beneficial for early maturing; and the economic benefit of peasants is increased.

The invention discloses a flower box lamp for municipal use, which comprises a light box frame, a first isolation plate and a second isolation plate are fixedly connected between the inner bottom wall on one side of the light box frame, and the first isolation plate and the second isolation plate A light bar space is formed between the isolation plates. The light bar space is set with matching LED light bars. A pressure plate is arranged on the top of the light bar space. The space is arranged in a ㄣ shape, and the bottom of the pressure plate is provided with a pressure seat, and the pressure seat is arranged in a U shape, and several adjusting bolts are threaded through the inner bottom wall of the pressure plate. The present invention uses glue to seal the light bar space, effectively preventing external moisture from entering the light bar space and dirtying the LED light bar, which affects the service life of the flower box light, and the present invention installs the LED light bar on a part of the light box frame. The side is decorated with side lighting, so that the two ends of the emitted light are consistent, ensuring the beauty of the flower box.

The invention discloses frost resistant emulsified bitumen which is prepared from a composite emulsifier, and a preparation method thereof. The emulsified bitumen comprises bitumen, a cationic emulsifier, an anionic emulsifier, an amphoteric emulsifier, a nonionic emulsifier, an alcohol and water. The alcohol comprises one or more selected from ethanol, propanol, isopropanol and tert butyl alcohol. With the present invention, a combination of the composite emulsifier and the low molecular weight fatty alcohol is adopted for the emulsified bitumen while diluents such as diesel oil or kerosene and the like are not added, such that time of water evaporation is shortened, a hardening rate of mixture is increased, frost resistance is improved (the emulsified bitumen cannot be frozen at a temperature of -5 to -25 DEG C), original excellent properties such as bonding performance of the bitumen and the like are maintained, and shrinkage and cracking of the mixture due to a low temperature in winner or surface loosening of the mixture due to freeze thawing is avoided. The frost resistant emulsified frost resistant can be used for road curing and road maintenance.

The invention discloses a fair-faced concrete, which is characterized in that it is made of the following raw materials in parts by weight: 5-10 parts of surface-modified nano-boron fibers, 5-10 parts of kaolin, 10-15 parts of illite powder, and 20 parts of gravel ‑30 parts, 5‑10 parts of vermiculite sand, 20‑30 parts of fine sand, 40‑50 parts of Portland cement, 1‑5 parts of composite additives, 20‑30 parts of water. The composite additive includes the following components by weight: 20-25 parts of phosphate-based boric acid-based copolymer, 2-5 parts of zinc citrate, 1-3 parts of pyrophyllite powder, 1-3 parts of wollastonite powder, porous silicon Magnesium acid 2-4 parts, defoamer 0.5-1 part, polyaminopropyl biguanide 0.8-1.5 parts, hydroxypropyl cyclodextrin 0.5-2 parts, activator 1-3 parts, water 80-100 parts. The invention also discloses a preparation method of the fair-faced concrete. The fair-faced concrete disclosed by the invention has high compressive strength, good corrosion resistance, impermeability and crack resistance, excellent comprehensive performance, and safe and environment-friendly production and use.

The invention discloses emulsified asphalt for roads and a preparation method thereof. The emulsified asphalt comprises asphalts, cationic emulsifiers, zwitterionic emulsifiers, alcohols and water, wherein the alcohols are one or more of ethanol, propanol, isopropanol and tert butyl alcohol. The emulsified asphalt has the following advantages: through synergistic action of the compound emulsifierand lower fatty alcohols, without adding such diluents as diesel or kerosene, the emulsified asphalt can be used for shortening the time of moisture volatilization, speeding up mixture hardening and improving the frost resistance, is not frozen at minus 5-minus 25 DEG C, maintains such excellent properties of the original asphalts as caking property and can be used for avoiding the low-temperature shrinkage crack or freeze thawing and looseness of a mixture in winter. The emulsified asphalt is used for highway maintenance and repair.

The invention belongs to the technical field of fire fighting equipment, in particular to an anti-freezing device for fire water for fire fighting, and provides the following scheme for solving the problems in the prior art: the anti-freezing device comprises a water tank body, wherein the outer wall of the bottom of the water tank body is fixedly connected with a base; the outer wall of the top of the water tank body is fixedly connected with a top shell; an air guide gap is reserved between the inner wall of the top of the top shell and the outer wall of the top of the water tank body; at least one evenly-distributed anti-freezing mechanism is arranged in the water tank body; each anti-freezing mechanism comprises a rotating shaft; the outer wall of the side face of each rotating shaft is fixedly connected with at least three evenly-distributed annular rings; each annular ring is of a wave annular rod-shaped structure; and the top end of each rotating shaft extends to the position above the top shell. According to the anti-freezing device, water in the water tank body can be in a flowing state, the anti-freezing effect is achieved, the temperature of the water is increased through heat transfer, so that the effect of preventing the water temperature from being reduced is achieved, freezing prevention can be conducted when external wind power is insufficient, and snow accumulation on the top of the top shell can be prevented.

The invention relates to the technical field of waterproof adhesives, in particular to a preparation method of a waterproof adhesive, which comprises the following components: epoxy resin, an epoxy resin curing agent, an emulsifier, a pH value regulator, an anti-mildew antibacterial agent, an anti-aging agent, an anti-freezing agent, a plasticizer, a defoaming agent and a dispersing agent. The nano-silver, nano-salt and graphene are adopted to achieve mildew-proof and antibacterial effects, the problem that mildew and bacterium breeding are prone to occurring in water or a humid environment after use is solved, use sanitation and bonding performance are effectively guaranteed, calcium lignosulphonate and ethylene glycol are matched to achieve an anti-freezing effect, the problem that use is affected by freezing in a low-temperature environment is avoided, the bentonite, the silica powder and the silica wax are matched to achieve a waterproof effect, and the overall waterproof performance is effectively improved.

The invention discloses frost-resistant emulsified asphalt for roads and a preparation method thereof. The emulsified asphalt comprises asphalts, cationic emulsifiers, anionic emulsifiers, a non-ionic emulsifier, alcohols and water, wherein the alcohols are one or more of ethanol, propanol, isopropanol and tert butyl alcohol. The emulsified asphalt has the following advantages: through synergistic action of the compound emulsifier and lower fatty alcohols, without adding such diluents as diesel or kerosene, the emulsified asphalt can be used for shortening the time of moisture volatilization, speeding up mixture hardening and improving the frost resistance, is not frozen at minus 5-minus 25 DEG C, maintains such excellent properties of the original asphalts as caking property and can be used for avoiding the low-temperature shrinkage crack or freeze thawing and looseness of a mixture in winter. The frost-resistant emulsified asphalt is used for highway maintenance and repair.

The invention belongs to the technical field of fire-fighting equipment, in particular to a fire-fighting water antifreeze device for fire-fighting. In view of the problems existing in the prior art, the following solutions are proposed, including a water tank body, the bottom outer wall of the water tank body is fixedly connected with a base, And the top outer wall of the water tank body is fixedly connected with a top shell, an air guide gap is left between the top inner wall of the top shell and the top outer wall of the water tank body, and the interior of the water tank body is provided with at least one evenly distributed antifreeze mechanism, The antifreeze mechanism includes a rotating shaft, and the side outer wall of the rotating shaft is fixedly connected with at least three annular evenly distributed annular rings, the annular rings are wave-ring rod-shaped structures, and the top of the rotating shaft extends to the top of the top shell. The invention can keep the water inside the water tank in a flowing state, and has the effect of anti-freezing. The temperature of the water is heated through heat transfer, so as to achieve the effect of preventing the water temperature from decreasing. .

The invention provides a production process of freeze-resistant pastry, comprising the following steps: 1) soaking the glutinous rice in water for 1-2 days, filtering out the water, and taking it out for later use; 2) placing the glutinous rice treated in step 1) in a container and adding water Keep the temperature at 85-89°C, and fully stir for 20-30 minutes, then move to a water mill, grind the slurry to a slurry, and obtain the slurry; 3) mix xylitol and white cotton sugar in a mass ratio of 1:1 and Step 2) The treated slurry is stirred, mixed, heated and cooked in parts by weight, and then flour, red bean paste, mung bean paste pumpkin powder, green tea powder, bamboo leaf powder, salad oil, freeze-dried powder are added in sequence, and fully stirred until The material is sticky, take it out of the pan and cool to room temperature, and control the water content to 2-3%. Through the method provided by the invention, the freeze-dried powder added to the raw materials can effectively prevent freezing, the whole manufacturing process is simple, and can be further popularized and applied.

The invention discloses an organic antifreeze powder for preventing iron concentrate from freezing and a preparation method thereof. The resin can absorb most of the water in the iron concentrate, making the interior of the iron concentrate relatively dry, and cannot form large pieces of ice in a cold environment. Urea has a certain antifreeze effect, and the freezing point of the formed solution can reach below zero. At 13°C, the wax powder has a water-repelling effect, which can separate the small amount of water remaining in the iron concentrate and avoid the formation of ice sheets. The organic antifreeze powder obtained by mixing superabsorbent resin, urea, and wax powder is It can prevent freezing of the iron concentrate without increasing the moisture content of the iron concentrate or affecting the quality of the iron concentrate.