1632 results about "Snow melting" patented technology

The invention discloses a road asphalt concrete pavement material composition which is applicable to microwave absorption. Magnetic powder is added for replacing all or part of limestone mineral powder in the traditional asphalt concrete raw material; magnetic sand or silicon carbide sand is adopted for replacing all or part of natural aggregate in the traditional asphalt concrete raw material, wherein the weight of the magnetic powder accounts for 3-15% of the total weight of the composition; the weight of the magnetic sand or the silicon carbide sand accounts for 2-50% of the total weight of the composition; the weight of asphalt accounts for 5-10% of the total weight of the composition; the weight of the limestone mineral powder accounts for 0-5% of the total weight of the composition; and the weight of the natural aggregate accounts for 20-90% of the total weight of the composition, and the microwave-absorbing asphalt concrete pavement material composition is finally obtained. Compared with the traditional asphalt concrete, the microwave-absorbing asphalt concrete can improve the microwave heating rate by a plurality of times to dozens of times. The composition can greatly improve the microwave de-icing and snow-melting efficiency, and be extensively applied in a variety of asphalt concrete highway pavements, parking aprons of airports, factories, offices, schools, troops and other units for use.

The invention relates to a special-region band-type private network transportation communication navigation monitoring and warning device. The device comprises an LTE (long term evolution) private network communication base station, a GPS (global positioning system)/Beidou dual-mode positioning foundation reinforced reference station, a multifunctional vehicle-mounted multimedia information terminal, a sparse distributed monitoring and LED induced warning device, a traffic warning mobile phone APP (application), a tracking body aerial photography system, a microclimate acquisition device, a distributed automatic snow and frost removing device and a background control and data center. By the device, highway all-section non-blind-area high-speed wireless data communication services and highway vehicle sub-meter high-precision navigation and positioning are realized, lanes where vehicles are located are identified accurately, illegal acts such as overspeed and road occupation of the vehicles are judged, accident information is identified through fixed-point monitoring and fixed-point cruising of unmanned aerial vehicles, along-highway meteorological information is acquired in real time, warning information is released in time, and snow-melting agent is sprayed automatically in snowy and frosty weather so as to guarantee traffic safety.

An environment protection type snow melt agent is prepared from the rejected liquid. Its advantages are no corrosion, low cost, and low thawing temp. Said rejected liquid is generated in making gas by carbonizing wood dust.

A de-icing, snow melting and warming system is taught which utilizes a heatsink (20) consisting of a number of board strips disposed in a planer array positioned within a building structure between its exterior and interior surface. The heatsink board strips have a gap (24) therebetween in which a heating cable (42) is positioned in a continuous serpentine manner and held in place with loop clamps (44). A gap filler (48) encases the heating cable including the enclosed gap forming a homogenous closure. A low voltage power transformer (54) is attached to electrical mains providing electrical voltage reduction to the heating cable of 30 volts or less, and controls and self diagnostics regulate the power and detect anomalies within the system.

A gutter cover which more effectively and efficiently prevents the clogging of gutters and the formation of ice dams without the use of heating cables and other active components. The gutter cover comprises a first section, a second section, and a passive heating element. The first section is adapted to be installed over or under roofing material covering the roof for directing water from the roof. The second section is attached to the first section and adapted to be installed over an open end of the gutter for directing the water from the roof into the gutter while preventing debris from entering the gutter. The passive heating element is provided for absorbing heat from sunlight and thereby preventing or minimizing accumulation of snow or ice on or near the second section without the use of heating cables or other active heating components.

In order to melt snow and prevent freezing without consuming energy wastefully and to monitor a road surface state remotely, a road surface sensor includes: a rotating stand provided so as to be reciprocatingly rotatable upward on the road surface; a snow-melting/freezing heat quantity measurement dummy road surface having an electric heater buried therein and to use as a reference road surface for heat quantity measurement to derive a melting heat quantity for snow falling on the surface and a heat quantity required for freezing prevention; a reference light irradiating/reflected light receiving device that is attached so as to be rotatable with the rotating stand; a space reflected light receiving device; a non-contact road temperature measuring device; a non-contact snow cover depth measuring device; a road surface image pickup device; and a moisture sensor. The reference light irradiating/reflected light receiving device includes a reference light irradiating device for irradiating reference light and a reflected light receiving device for receiving reflected light of the reference light from the road surface, and the reflected light receiving device separates and receives only reflected light of the reference light out of the reflected light from the road surface.

The invention relates to a long-acting environment-friendly ice-snow melting pavement coating and a preparation method and a using method of thereof. A snow-melting coating formed by spraying modified emulsified asphalt mixed with a porous carrier material absorbing a snow-melting substance onto a road surface can be taken away by rainwater so as to lose a snow-melting effect. The preparation method comprises the following steps: wrapping a snow-melting substance uniformly with a coating material so as to form a layer of continuous coating material thin film on the surface of the snow-melting substance, adding epoxy resin, an active diluent, a non-active diluent, a silane coupling agent, black paste, an accelerant and quartz sand, performing stirring uniformly, and then adding an epoxy resin curing agent to obtain a long-acting environment-friendly ice-snow melting pavement coating material. According to the preparation method, the snow-melting substance is wrapped with a high-molecular thin-film material so that the snow-melting substance has a better slow-release effect, the snow-melting life of the ice-snow melting coating is prolonged, the ice-snow melting function of a road can last for more than one year, and the coating is suitable for southern rainy regions.

The invention provides a tree pool. The tree pool comprises a front pool (11), a filtration pool (3) and a split-flow pipe. A water inlet (8) is formed in the front pool (11), and a division plate (7) is arranged in the front pool (11). The front pool (11) is divided into a split-flow chamber (12) and a spilling chamber (20) by the division plate (7), and the split-flow chamber (12) and the spilling chamber (20) are communicated. The split-flow pipe is provided with an inlet and an outlet, the inlet of the split-flow pipe is disposed in the split-flow chamber (12), the outlet of the split-flow pipe is disposed on the outside of the tree pool, and the inlet of the split-flow pipe is higher than the bottom of the front pool (11). Besides, the invention further provides a method for filtering runoff rainwater through the tree pool. According to the tree pool and the method, sewage interception and emission reduction can be performed on road initial runoff rainwater, rainwater is used for greening irrigation and preventing plants from being damaged by snow-melting agents.

The invention discloses a slow-release three-component road de-icing and snow-melting coating and a preparation method thereof. The coating comprises a film-forming component A, a cementing component B and an ice inhibiting component C, wherein the ratio of the mass part of the film-forming component A, the cementing component B and the modified ice inhibiting component C is 100:(1-2):(2.4-4). The preparation method comprises the steps of preparing the film-forming component A; preparing the cementing component B; preparing the ice inhibiting component C; modifying the ice inhibiting component C; and preparing the slow-release three-component road de-icing snow-melting coating. The coating is solidified on the road surface and in the structural depth of the coating to form a good-adhesive de-icing snow-melting film layer after spraying, the ice inhibiting component C of the film layer actively releases an ice point inhibitor to prevent hydrogen bond association between water molecules and reduce the ice point to (-4)-(-8) DEG C, thereby achieving the effect of active de-icing and snow melting, and meanwhile, as the ice point inhibitor has long-acting slow-release performance due to the adoption of slow release control technology, the coating can achieve the effect of active snow melting and de-icing in a winter.

The invention relates to an organic/inorganic composite environment-friendly snow melting agent. The snow melting agent comprises 30 to 90 parts of formate, 25 to 75 parts of nitrate, 0.5 to 10 parts of sulfate, 0.5 to 15 parts of acetate, 1 to 20 parts of urea and 5 to 25 parts of calcium carbonate. The snow melting agent has a high snow melting speed and a good effect. Compared with the traditional chloride snow melting agent, the snow melting agent has low corrosivity on roads and bridges and low harmfulness on plants. Compared with the traditional calcium magnesium acetate snow melting agent, the snow melting agent is relatively low in cost. A preparation method for the snow melting agent is simple and practicable and applicable to large-scale mechanized operation, and has high popularization and application prospects.

The invention relates to a method for synergistic treatment and harmless cyclic utilization of refuse fly ash by using a cement kiln. The method for synergistic treatment and harmless cyclic utilization of refuse fly ash by using thecement kiln comprises a three-stage washing desalination technology, a technology of removing heavy metals by coagulation and sedimentation, a membrane distillation concentration technology, a technology of removing slight trace carnallite and a triple-effect evaporation crystallization technology, wherein the three-stage washing desalination technology can remove heavy metals and chloride ions in the fly ash, and the fly ash which contains water and dioxin and the fly ash which contains less than 1% of chlorine ions enter the cement kiln and are incinerated at the temperature of above 1400 DEG C to turn into cement raw materials, and the dioxin is split at the temperature of above 800 DEG C; the technology of removing the heavy metals by coagulation and sedimentation can remove multiple metal ions in the fly ash, and precipitates are dried in advance and then enter the cement kiln to be incinerated; the membrane distillation concentration technology can remove the rest of chloride ions in a solution, and generated distilled water can be recycled; the technology of removing the slight trace carnallite can remove the slight trace carnallite, and heat energy can be recycled; and the triple-effect evaporation crystallization technologyevaporates and separates high salt content concentrated liquid to obtain industrial salt which is used for a paper making technology, snow-melting agents and chloro-alkali industries.

The invention discloses a slag road asphalt concrete pavement material composition suitable for microwave heating. In the preparation process of road asphalt concrete, magnetic powder is added and is used for fully or partially replacing the lime stone powdered ore in the traditional asphalt concrete raw material, magnetic metallurgical slag is used for replacing the natural coarse aggregate in the traditional asphalt concrete raw material, and thus the finally obtained composition comprises magnetic powder, lime stone powdered ore, asphalt, magnetic metallurgical slag and natural coarse aggregate. Compared with the traditional asphalt concrete for microwave heating, the slag asphalt concrete of the invention improves the heating rate by several times to dozens of times, has lower cost, can greatly improve ice removing and snow melting efficiency by microwaves, and is widely applied to various asphalt concrete highway pavements, airports, factories, offices, schools, armies and other organizations.

A snow and ice melting device adapted to rest on a roof; having a flat plate with a series of channels therethrough containing a heating element to heat the flat plate and melt the ice and snow on the roof.

The invention relates to a talus slope freezing and thawing circulating action deformation physical model experiment apparatus and experimental method. The talus slope freezing and thawing circulating action deformation physical modeling experiment apparatus comprises a base placed on a talus slope, wherein a metal base plate and an organic glass model box are sequentially arranged on the base from bottom to top; a front door is arranged on the organic glass model box; a water drainage hole is formed in the bottom of the front door; a flow velocity rheometer is arranged between the water drainage hole and the front door; snow melting devices are respectively arranged on the two sides, and at the front part and the top of the organic glass model box; a thermometer is arranged at the top of the organic glass model box; a loading device is arranged at the rear part of the organic glass model box; at least a displacement meter is arranged inside the talus slope. The experiment apparatus disclosed by the invention can solve the problems that the existing talus slope physical simulator is single in test result, unstable in test result and incapable of simulating the freezing and thawing circulating action, has the characteristics of being convenient to operate and high in testing efficiency, and is suitable for simulation tests on slope deformation and breakage induced by freezing and thawing circulation and tunnel portal slope excavation.

Disclosed is a snow thawing agent comprising, in addition to formate as a principal component, additives, such as silicate, sodium metalluminate, sodium carbonate and organophosphate containing phosphoryl. The snow thawing agent according to the present invention has strong thawing capability with low erosion on carbon steel metals and concrete, especially much low erosion on aluminium magnesium alloy materials used in aircrafts; the present invention is easily biodegradable at low oxygen consumption, and thus is an environmentally-friendly, efficient and fast snow thawing agent.

The invention relates to a green environment-friendly snow-melting liquid and a preparation method thereof. The liquid contains the following components: 40-60 wt% of a soluble acetate; 10-20 wt% of a soluble formate; 2-5 wt% of a soluble carbonate; 1-5 wt% of a polyol; 1-5 wt% of a viscosity modifier; and 20-40 wt% of water. The green environment-friendly snow-melting liquid provided in the invention is free of chloride ions, has a fast snow-melting rate, has no corrosion on metal materials such as steel bars, and has no pollution on soil and water bodies, thus being green and environment-friendly. The snow-melting liquid is convenient for storage and transportation, and has wide application. Compared with most of existing solid snow-melting materials, the snow-melting liquid has the characteristics of fully mechanized spreading way, uniform spreading, labor cost reduction, and spreading time reduction, etc.

The invention relates to a steel fiber bituminous concrete, in particular to a layered steel fiber conductive bituminous concrete. The layered steel fiber conductive bituminous concrete is characterized by comprising a bituminous concrete pavement, a steel fiber layer and a lower bearing layer which are sequentially arranged from top to bottom, wherein electrodes are embedded in the steel fiber layer; the steel fiber layer consists of steel fiber and conductive emulsified asphalt and is uniformly paved on the surface of the lower bearing layer with a spreading method, the conductive emulsified asphalt is sprayed on the steel fiber, the spreading amount of the steel fiber is 170-330g/m<2>, and the spraying amount of the emulsified asphalt is 0.6-0.81g/m<2>. The invention has the characteristics of low cost of construction, simple and convenient construction, easy control of quality and favorable conductive performance, and meanwhile, the high-temperature stability and the low-temperature crack resistance are improved. The layered steel fiber conductive bituminous concrete is applied to deicing and snow melting of bituminous pavements and self-healing or heat repairing of the diseases of bituminous pavements.

The invention relates to a straddle type rail ice removal machine, and solves the problem of ice and snow removal of rails of straddle type rail transit. A walking chassis consists of two monorail vehicle bogies which are connected through a longitudinal beam; a snow removal rolling brush, a snow removal blower device, a hot air heating device and an ice removal water blower device are mounted on the walking chassis in sequence; the snow removal rolling brush device is connected with the walking chassis through a bracket; the rolling brush is connected with a hydraulic motor or a motor to realize rotary operation; the snow removal blower device and the ice removal water blower device are mounted in front of and behind the hot air heating device; an air outlet of a blower fan is connected with a blower port; a groove-shaped heater of the hot air heating device is straddled on a rail of a monorail vehicle; air heated by a heating furnace is blown to the rail through a high-temperature centrifugal fan; and ice and snow on the rail can be cleared away under the action of snow removal, snow blowing, snow melting and ice water blowing of the rolling brush. The straddle type rail ice removal machine has the characteristics of high cleaning speed, thorough cleaning, no influence on normal traffic circulation and the like, and is applicable to cleaning of accumulated snow and frozen ice on a straddle type rail.

The invention relates to an environmental-protection self-snow-melting asphalt pavement admixture and a preparation method thereof. The environmental-protection self-snow-melting asphalt pavement admixture is prepared from a component A, a component B and a component C, wherein the component A is solid particles formed by K<+> or Na<+> or Ca<2+> or Mg<2+>, and NO<3-> or SO4<2+> or CH3COO<-> or PO4<3-> or Cl<->; the component B is glycerin or silicone oil or tung oil or vaseline or lanolin; and the component C is NaOH powder or Na2CO3 powder or ore powder. The preparation method comprises the following steps: mixing the component A and the component B, so that the surface of the component A is evenly coated with a layer of component B, and the component C is attached onto the surface of the component A through the component B to form coating particles; and screening, and cooling to obtain the environmental-protection self-snow-melting asphalt pavement admixture. When in use, the admixture is added into the asphalt mixture to be used on the asphalt pavement, thereby reducing the snow melting by salt sprinkling, solving the problems of environment pollution and waste of resources when the snow melting agent is used, effectively preventing the pavement from icing for a long time, lowering the pavement maintenance cost in winter, keeping the roads clear in snowy days, and reducing the incidence rate of traffic accidents.

Disclosed are thixotropic compositions that are curable using ultraviolet and visible radiation. In addition, methods of applying the compositions to fiber substrates such as paper are described, as are methods of curing the coated products. Partially or fully water-resistant articles made using these compositions, such as snow melting mats, windshield protectors, and freezer defrosting sheets are also disclosed.

An apparatus melts snow off a person's footwear without the need for the wearer to take off the footwear. In particular, the apparatus is for melting ice and snow off the footwear, for example shoes, boots or sneakers, of the wearer by a directed and accurately disseminated heat flow. The heat flow is directed in a manner which facilitates the removal, deposition and collection of melting snow and ice from shoes of a wearer at a desired location, e.g., in a threshold or landing, adjacent an entry/exit door of a residence or commercial building before such snow and ice and any contaminant therein can be tracked into the building.