62results about How to "Isolation temperature" patented technology

The invention discloses a delivery device of a vending machine and a delivery mode of the delivery device. The delivery device comprises a lifting platform connected with a lifting mechanism, a lifting-platform goods receiving box in butt joint with a storage shelf is arranged on the lifting platform, and an opening used for receiving and discharging goods is arranged in one side of the lifting-platform goods receiving box; a synchronous belt arranged on the bottom surface of the lifting-platform goods receiving box and is driven through a motor arranged at the bottom of the lifting platform and used for receiving and transferring the goods; a flexible protective cover used for isolating outer interference is mounted on the lifting platform; when the lifting platform is operated to the position where the storage shelf receive the goods and the goods are transferred to the lifting platform from the storage shelf, and the lifting platform is controlled to shake vertically in a small range through a computer pulse counting mode, so that the goods on the lifting platform are safer in position; failure rate of the lifting platform is greatly reduced, reliability in selling of the lifting-type automatic vending machine is guaranteed, and market popularity of the lifting-type automatic vending machine is improved.

The invention relates to a combined fan heater and a clothes dryer. The combined fan heater comprises a fan heater body and the clothes dryer, wherein the fan heater is a cover plate of the dryer, and indoor air outlet swing blades, heating plates I, a wind wheel I and dryer air outlet swing blades are mounted in the fan heater body; the two sets of swing blades can be switched mutually, one set of the blades are used for blowing air indoors, and the other set of blades are used for blowing air to the dryer circularly; an air inlet, a wind wheel II, heating plates II, an air outlet and two side air outlets are arranged on a base of the dryer; the two side air outlets in the base of the dryer are communicated with two side air outlets of the dryer; a telescopic and rotary clothes rail is mounted on the cover plate in the dryer, and a motor of the clothes rail is mounted in the cover plate. Compared with the prior art, the clothes dryer can effectively dry clothes in the dryer by blowing in an omnibearing manner, and meanwhile, the fan heater can effectively warm the indoor space by use of hot steam produced by the dryer or circularly dry the inside of the dryer.

The invention relates to a high-temperature-resistant screw conveyor, which comprises a motor control system, a material conveying system and a cooling sealing system. The cooling sealing system is coaxially arranged between the material conveying system and the motor control system and comprises a solid heat-insulating and sealing device which is communicated with the material conveying system through a screw shaft connector, a solid feed inlet is arranged above the solid heat-insulating and sealing device, a discharge outlet is arranged below the solid heat-insulating and sealing device, solid particles passing the solid heat-insulating and sealing device are used for heat insulating and cooling. The cooling sealing system further comprises an air cooling device and a liquid circular-cooling device which are coaxially arranged between the solid heat-insulating and sealing device and the motor control system and share the same cylindrical cavity, and a casing of each cylindrical cavity has a hollow interlayer structure. The high-temperature-resistant screw conveyor has the advantages of simple structure and capability of conveying high-temperature materials and the like.

The invention provides observation elevator heat-insulating glass and a preparation method thereof. The observation elevator heat-insulating glass is prepared from the following raw materials in parts by weight: 6 to 25 parts of nano-powder, 20 to 35 parts of high-molecular resin, 6 to 16 parts of polymethyl methacrylate, 1 to 3 parts of boric acid, 20 to 30 parts of magnesium stearate, 1 to 2 parts of selenium, 3 to 5 parts of calcium chloride, 15 to 20 parts of glycerinum, 8 to 15 parts of sodium tripolyphosphate and 20 to 30 parts of polyvinyl alcohol. The heat-insulating glass prepared from the raw materials has high heat-insulating performance, the internal temperature and external temperature of an elevator can be insulated to a great extent, and the elevator is insusceptible to external factors at a high level, so that the experience effect of observation is improved; meanwhile, the heat-insulating glass provided by the invention has high weather resistance, high acid and alkali corrosion resistance, high hardness and high security, and is suitable for a high-level observation elevator.

The invention discloses a dual-state temperature change type cold-proof anti-freezing cable and belongs to the cable field. The dual-state temperature change type cold-proof anti-freezing cable includes a core layer, the outer end of the core layer is wrapped with an insulating layer. The outer end of the insulating layer is coated with a sheath; and the outer surface of the sheath is coated witha semi-transparent soft layer. At high temperature, a gas-controlled oil part is partially gasified to generate gas, an outer air bulge bulges outwards and is filled with air, and compared with an entity, the gas conduction speed is lower, the external temperature can be effectively isolated, the overall high temperature resistance of the cable is effectively improved and the service life is prolonged; and at low temperature, light oil returns to liquid, animal oil is cured, the gas-controlled oil part is integrally in a solid state with certain viscosity under the adjustment of the liquid light oil, so that the defect that the outer layer of the cable is hardened and embrittled at low temperature can be effectively overcome, and compared with the prior art, the brittleness resistance of the cable in winter is remarkably improved, and the service life of the cable is further prolonged.

The invention discloses a combined plate body, which is characterized in that plural combined C ring plates are arranged on one building side or frame side; each C ring plate is provided with at least a surface, a C pocket and a J column; the C pocket and the J column are arranged below both sides of the surface and form an alcove; the C ring plate and the building side or frame side have height difference and a sealed chamber is formed between the alcove and the building side or frame side. The combined plate body can ensure rapid assembly of the C ring plate and can be applied to various buildings, wallboards, floors, roofs, containers and the like so that the buildings have the effects of sound isolation, temperature isolation, power isolation and moisture isolation.

The invention discloses an odorless asphalt base waterproof material comprising a base layer and an insulating layer, the base is coated with the insulating layer, the base layer comprises the following raw materials by weight: 3-5 parts of sepiolite, 25-56 parts of quartz sand, 4-6 parts of mineral fiber, 1-2 parts of silicate, 2-4 parts of calcium carbonate powder, 6-10 parts of perlite powder, 2-5 parts of an anti cracking agent, 8-10 parts of polyphenyl granules, 3-5 parts of No. 10 asphalt, 12-24 parts of a wetting agent, 5-13 parts of carbon black, 3-9 parts of nitrile butadiene rubber particles, 12-18 parts of 90 No. asphalt and 2-8 parts of cellulose powder, and the odorless asphalt base waterproof material has the advantages of being safe, tasteless, good in energy-saving performance and good in effect, and can be popularized in a large area.

The invention relates to a preparation method of a mining reinforcement material, and belongs to the technical field of mining materials. The preparation method of the mining reinforcement material ischaracterized in that based on the flame retardance characteristic of ammonium polyphosphate, with diatomite as a carrier, a double-component ammonium polyphosphate-diatomite inorganic composite flame-retardant filler is prepared by an in-situ polymerization method, and an ammonium polyphosphate-diatomite / synergist composite flame-retardant filler is designed on the basis of the double-componentcomposite flame-retardant filler with magnesium hydroxide the synergist; with good smoke absorbing effect of the diatomite with high specific surface area and based on the special layered structure and composition and also flame retarding, smoke suppressing and acid resisting functions of magnesium hydroxide, the prepared mining reinforcement material is allowed to have good flame retarding and smoke suppressing properties; cellular glass cloth is used as a reinforcing agent for the mining reinforcement material, so that the strength of the mining reinforcement material is effectively improved; and according to the invention, a synergistic effect between two flame-retardant elements silicon and phosphorus causes a decrease in the number of brittle amorphous carbon layers generated and an improvement in the flame retardance of the mining reinforcement material.

The invention discloses a preparation formula of a polyurethane foaming product based on a graphite material. An electric conduction and heat conduction material and an insulation and heat conductionmaterial are added into a polyurethane foaming raw material; the thermal conductivity and the parallel electrical conductivity of a polyurethane foaming product are improved; in the production process, the adjustment of heat conduction and electric conduction performances is realized by changing the number of layers of the electric conduction and heat conduction material and the insulation and heat conduction material; the components of the product are not changed, the production becomes convenient; graphite fibers are used as main reinforcing fibers; the carbon content of the material is greatly improved, the mechanical property is better, titanium dioxide and a light reflection coating are added into the polyurethane foaming raw material, and the reflectivity of the product to infrared rays is improved, so that the temperatures of the inner side and the outer side of the polyurethane foaming product are isolated, the heat preservation and insulation effect is better, the added lightreflection pigment can reflect ultraviolet rays, the polyurethane foaming product is prevented from carrying out a photochemical reaction in a long-term sun exposure state, and the service life of theproduct is prolonged.

The invention relates to an intelligent rescue device which comprises a storage top base and a rear storage chamber. A front storage chamber is arranged at the left end in the storage top base. A front flow guide water pipe is connected with the outer wall of the front storage chamber. A transverse connecting water pipe is connected with the bottom end of the front flow guide water pipe. A rear flow guide water pipe is placed on the right side of the transverse connecting water pipe. A water pump is installed on the lower left side of the rear storage chamber. The rear storage chamber is located in the right side of the storage top base. The intelligent rescue device has the advantages that by arranging an auxiliary clamping base and a bolt connecting groove and pulling a push base, a connecting slide plate and a bolt can be driven for displacement, and therefore the bolt can be inserted in the bolt connecting groove, a main clamping base and the auxiliary clamping base are firmly connected together so as to be conveniently controlled at the same time, a plurality of sealing plate strips can be conveniently opened at the same time, and objects in the storage chambers can be rapidlytaken.

Provided is an energy-saving glass curtain wall. The energy-saving glass curtain wall comprises a glass wall body, a rotating drive unit, planting frames, fixing supports, solar panels and moss attachment balls, the fixing supports are fixed to a window frame of the outer wall of a building, the planting frames and the glass wall body are respectively fixedly arranged on both of the inner and outer sides of each fixing support, the rotating drive unit is fixedly arranged on the top ends of the supports, the solar panels are uniformly arranged between the left and right fixing supports, and aredriven to rotate through the rotating drive unit; a plurality of mounting holes are uniformly arranged on the planting frames, the bottoms of the moss attachment balls are provided with outer wire mounting rods matched with inner wires, and the moss attachment balls are fixedly connected with the planting frames through the outer wire mounting rods. According to the energy-saving glass curtain wall, the combination of the glass curtain wall and the solar panels is adopted, the rotation is achieved through the rotating drive unit, the light transmittance requirement of the glass curtain wall can be satisfied, the matched rotating drive unit can prevent light pollution in an office area, the temperature is isolated, the good effects of light transmittance and light shading are achieved, andthe practicability of the glass curtain wall is effectively improved.

The invention discloses a disinfection device for plastic cup production. The disinfection device comprises a condensing plate, a condensing pipe, a water ollecting groove, a water outlet, a water collecting tank and a water inlet, wherein the condensing pipe is internally provided with the condensing plate, the water collecting groove is welded under the condensing plate, the water outlet is formed in the bottom of one end of the water collecting groove, and the water inlet is opened at one end above the water collecting tank. The disinfection device has a scientific and reasonable structure,and is safe and convenient to use. The disinfection device is provided with the condensating plate, the water collecting groove and the water collecting tank, and when steam disinfection is performed, steam is condensed by the condensing plate after disinfection, and water inside the water collecting groove is collected into the water collecting tank through a hose, so that on the one hand, steamcan be effectively prevented from condensing inside a disinfection chamber to form serious water accumulation inside the disinfection chamber and affect normal use, and on the other hand, water resources can be effectively saved by recycling water after condensation, and the environment is protected.

The invention discloses a water-seepage-proof aluminum alloy door and window convenient to install, and belongs to the technical field of aluminum alloy equipment. The water-seepage-proof aluminum alloy door and window convenient to install comprises an aluminum alloy door and window body, a middle shaft supporting frame, a body fixing table and a penetrating groove, wherein the body fixing table is fixedly installed at the top of the aluminum alloy door and window body, the penetrating groove is formed in the surface of the body fixing table in a penetrating mode, the middle shaft supporting frame is arranged on the inner wall of the aluminum alloy door and window body, and a fixing clamping block is fixedly installed on the left side of the aluminum alloy door and window body. According to the water-seepage-proof aluminum alloy door and window convenient to install, the design is ingenious, the fixing clamping block, an oblique angle clamping block, a connecting fixing column, a connecting clamping groove and a fixing toothed plate are combined, so that the problems that when an existing aluminum alloy door and window is used, time needs to be consumed for installing equipment, and the equipment cannot be rapidly installed are conveniently solved, through the structural combination, the equipment can be rapidly installed when the equipment needs to be used, the unnecessary time consumed in use is reduced, and the use efficiency of the aluminum alloy door and window is improved.

The invention discloses an architectural decoration curtain wall. The curtain wall comprises main boards, docking grooves and docking strips, the docking strips are welded to the right sides and topsof the main boards, the docking grooves are formed in the left sides and bottoms of the main boards, the sizes of the docking grooves are consistent with the sizes of the docking strips, docking blocks are movably connected with both ends of the docking strips, the main boards include insulating layers, the insulating layers are fixedly connected with the back faces of the main boards, vacuum plates are fixedly connected with the front surfaces of the insulating layers, vacuum chambers are formed in the inner openings of the vacuum plates, radiation-proof layers are fixedly connected with thefront surfaces of the vacuum plates, the front surfaces of the radiation-proof layers are fixedly connected with unit glass, the front surface of the unit glass is closely bonded with a diverging layer, a plurality of reinforcing pads are embedded in the inner walls of the vacuum plates, and a reinforcing rod is embedded between two reinforcing pads. The curtain wall can completely isolate noise and prevent people from being hurt by the noise, and has the advantages of strong wind resistance, earthquake resistance, heat preservation capability and the like.

The invention discloses a light silencing floor and a manufacturing method thereof. The light silencing floor comprises a base material layer, a wood grain layer and a bottom cushion layer; the wood grain layer is installed above the base material layer, and the bottom cushion layer is installed below the base material layer; multiple T-shaped grooves are formed in the top of the base material layer and the bottom of the wood grain layer correspondingly; the T-shaped grooves of the base material layer correspond to the T-shaped grooves of the wood grain layer, and an H-shaped strip is insertedinto each T-shaped groove; and limiting blocks are arranged on the two sides of the top of the base material layer, and limiting grooves matched with the limiting blocks are formed in the two sides of the bottom of the wood grain layer. According to the light silencing floor and the manufacturing method thereof, the matched T-shaped grooves are formed between the base material layer and the woodgrain layer, during installation, only the base material layer and the wood grain layer need to be combined, the limiting blocks are inserted into the limiting grooves, the upper T-shaped grooves andthe lower T-shaped grooves correspond to each other, then the H-shaped strips are inserted, gluing is not needed, the environment is protected, the structure is fixed, falling is not prone to happening, and durability is achieved.

The invention discloses an electromagnetic induction hot blast stove. The electromagnetic induction hot blast stove comprises a box shell, a high-pressure cyclone furnace is installed in the box shell, the other side of the high-pressure cyclone furnace is connected with an air inlet bent pipe through a pipe connecting flange, a heating steel barrel is installed on the upper side of the air inletbent pipe, electromagnetic induction coils wind the outer sides of heat insulation plates, a heat conduction inner furnace core is installed in the heating steel barrel, a contact heat conduction column is installed in the heating steel barrel, a controller is installed on the lower side of a control panel display screen, the controller is wirelessly connected with a display terminal, a data initial detection module is used for carrying out data initial detection on wind power and temperature sent by a data acquisition module, and a fault analysis module is used for carrying out fault analysison the high-pressure cyclone furnace and the heating steel barrel. The electromagnetic induction hot blast stove has the advantages that external air can be conveniently converted into hot air, meanwhile, the high-pressure cyclone furnace and the heating steel barrel in the electromagnetic heating device are subjected to fault detection, so that the situation that electromagnetic heating is affected by the device is avoided, and further, potential safety hazards can be completely eradicated.

The invention belongs to the technical field of stirring tanks, and discloses a stirring tank with intelligent heating function for production of special wax. The stirring tank comprises a stirring tank body, and the bottom of an inner cavity of the stirring tank body is provided with a filter plate; a tank cover is installed at the top of the stirring tank body, and the top of the tank cover is provided with a motor; a stirring shaft is installed at the output end of the motor, one end, far away from the motor, of the stirring shaft extends to the inner cavity of the stirring tank body and isequipped with a bearing, and stirring paddles are installed at the left and right sides of the stirring shaft; and heat-conducting members are installed on the inner walls of the left and right sidesof the stirring tank body, a material outlet pipe is arranged in the center of the bottom of the stirring tank body, and a supporting frame is installed at the bottom of the stirring tank body. According to the device provided by the invention, the heat-conducting members are arranged, so that temperature of heat-conducting oil is quickly transferred to the special wax in the stirring tank, and the special wax is uniformly heated; and at the same time, under cooperation of the stirring paddles, the special wax can be more uniformly stirred, so that the stirring tank facilitates improving of the quality of the product.

The invention discloses a leafy vegetable planting greenhouse, and particularly relates to the technical field of vegetable planting, the leafy vegetable planting greenhouse comprises a greenhouse main body, a spraying mechanism is arranged at the bottom end of one side of the greenhouse main body, a lighting mechanism is arranged at the top end of the greenhouse main body, and a heating mechanism is arranged at the top end of the other side of the greenhouse main body; a purification mechanism is arranged at the bottom end of the other side of the greenhouse body, a heat preservation and insulation structure is arranged on the inner wall of the greenhouse body, and the inner layer is arranged on the inner wall of the greenhouse body. By arranging a filter screen, an air outlet fan, a fixing seat, an activated carbon plate, a connecting pipe and an air inlet, when the greenhouse is used and the interior of the greenhouse body is sealed for a long time, the air outlet fan is started and pumps and exchanges air in the greenhouse body, and the air in the greenhouse body is guided into the activated carbon plate through the air inlet and the connecting pipe; and air is exhausted outwards through the activated carbon plate, and the activated carbon plate purifies the air, so that the internal air quality is ensured, and the environmental protection property in use is enhanced.

The invention discloses a drying unit for golden camellia flower tea production. The drying unit comprises a drying box, a base plate, supporting legs, hot-air blowers, a power source block, a controlpanel, a feeding opening, a box door, cloth strips, a water storage barrel, a tea storing box, a roller, a fixing support, a separating plate, a filter net, a top cover, a water exchange opening, a thread connector, a ferrule, a glass column, a spiral pipe, a metal block and a sponge mat. The drying unit has the beneficial effects that the two sides of the drying box are each provided with one hot-air blower, the two hot-air blowers are arranged in a diagonal manner, blown-out hot air can achieve convection inside the drying box, the hot air is stirred to extrude out cold air, and the temperature inside the drying box can be quickly increased; and the multiple vertical cloth strips are arranged between the box door and the feeding opening, when the box door is opened and flower tea needing to be dried is placed in, heat losses can be reduced through the cloth strips, and energy resource waste is effectively prevented. The drying unit has the beneficial effects that the energy resources are saved, the drying efficiency is improved, and the plant planting, seedling growing, process, machining equipment and related drying effects are strengthened.

The invention discloses a back-condensing refrigerating system, and relates to the technical field of high-purity germanium spectrometers. The back-condensing refrigerating system comprises a tank body, a refrigerating assembly and a damping sealing assembly. The tank body comprises an inner container and an outer shell wrapping the inner container, liquid nitrogen is stored in the inner container, and a vacuum layer is arranged between the inner container and the outer shell. The refrigerating assembly comprises a mounting bottom plate and a refrigerating machine, the mounting bottom plate is fixedly connected with the outer shell and the refrigerating machine, and the refrigerating machine is inserted into the inner container. The damping sealing assembly comprises a first sealing gasket and a corrugated pipe, the first sealing gasket is arranged on the periphery of the refrigerating machine in a sleeving mode, the first sealing gasket is arranged between the mounting bottom plate and the tank body, the corrugated pipe is arranged on the periphery of the refrigerating machine in a sleeving mode, and the two ends of the corrugated pipe are fixed to the refrigerating machine and the mounting bottom plate correspondingly. According to the back-condensing refrigerating system, the temperature can be isolated, liquid nitrogen reduction caused by temperature conduction is reduced to a certain extent, and the sealing performance and stability of the whole back-condensing refrigerating system are improved.

The invention discloses a top cover with heat insulating and ventilation functions. The top cover comprises a top cover body, a ventilation port and a cover plate. The ventilation port facilitating ventilation is formed in the top cover body and connected with the cover plate through sliding grooves and sliding blocks. Wave layers are arranged at the top end of the top cover body and the top end of the cover plate. The bottom ends of the wave layers and the top cover body are provided with cavities. Gauze plates are arranged at the junction of the ventilation port and the top cover body and in the cavities. Heat insulating plates with heat insulating function are arranged at the bottom end of the top cover body and the bottom end of the cover plate. The top cover is simple in structure, low in manufacturing cost and high in practicability, through the arrangement of the wave layers, the temperature received by the top cover can be decreased, and the temperature in a vehicle can be decreased easily; through the arrangement of the cavities, the heat conducting function of the top cover can be relieved; through the arrangement of the heat insulating plates, heat can be insulated, and the temperature in the vehicle is decreased; through the arrangement of the ventilation port, ventilation in the vehicle can be achieved; and through the arrangement of the gauze plates, dust in outside air can be prevented from entering the vehicle, and environmental sanitation in the vehicle can be guaranteed easily.

The invention relates to the technical field of metallurgy, in particular to a microwave metallurgical furnace with a lifting mechanism and a using method thereof. The microwave metallurgical furnacecomprises a furnace body and a furnace chamber in the furnace body, wherein a support mechanism is arranged below the furnace body; a support base is arranged at the bottom of the furnace body; an accommodating table is arranged above the support base and is embedded in the bottom of the furnace body; the lifting mechanism is arranged below the support base; a running gear is arranged below the lifting mechanism; a rail is arranged below the running gear; and a microwave transmitting end is arranged at the top of the furnace body. According to the microwave metallurgical furnace, the lifting mechanism enable the furnace door to be arranged at the bottom, so that material placement is facilitated; and hot exhaust gas generated during the smelting process is full of the entire furnace body to facilitate sealing, so that control of the reduction atmosphere in the furnace body is facilitated.

The invention provides a injection mold with a cooling function. The injection mold with the cooling function structurally comprises an injection molding opening, an upper mold base, a cooling plate, a guide column and a lower mold base, the injection molding opening is formed in the middle of the upper mold base, the cooling plate is installed between the upper mold base and the lower mold base, and the guide column is fixedly embedded between the upper mold base and the lower mold base. According to the injection mold with the cooling function, during cooling before demolding, generated cold air and hot air flow in the mold are opposite to each other, a bag layer in a sealing layer is jacked upwards, so that the joint of the injection molding opening can be effectively insulated from the temperature, and the problem that subsequent demolding of the mold cannot be smoothly carried out due to the fact that a processed product at the top end of the mold cannot be completely cooled is avoided; and then the mold processing yield is improved, the attaching degree between two opening and closing plates is stabilized through a gravity ball and a weight increasing plate, suction cups of rubber blocks are mutually adsorbed, so that the sealing stability and sealing performance of the outer layer of the injection molding opening are improved, the high temperature outside the mold cannot directly influence the internal cooling, and the subsequent demolding difficulty is reduced.

The invention discloses a circulation spraying assembly type building structure maintenance device which comprises a shell, a spraying mechanism and a vibration reduction mechanism, the spraying mechanism and the vibration reduction mechanism are arranged in the shell from top to bottom, the spraying mechanism sprays building components, and the spraying mechanism enables the maintenance range ofa building structure to be narrowed. The vibration reduction mechanism buffers vibration of the building structure and controls the buffer strength through the resistance magnitude. The spraying mechanism forms a maintenance bin on the outer side of the building structure through a maintenance layer made of a rubber material and sprays water mist into the maintenance bin, so that the water mist diffuses into the maintenance bin under the driving of airflow generated during spraying, thus the water mist is in comprehensive contact with the building structure, the building structure is maintained through the water mist, the water consumption can be reduced, and the building structure can be comprehensively maintained.

The invention discloses an energy-saving prefabricated all-aluminum building wall, and relates to the technical field of building engineering. The energy-saving prefabricated all-aluminum building wall comprises a fixed base, wherein the top of the fixed base is arranged in a convex shape, a first aluminum plate and a second aluminum plate are placed on the top of the fixed base, and three groups of sandwich plates are fixedly installed on the outer wall of the rear side of the first aluminum plate and the outer wall of the front side of the second aluminum plate. A base fixing hole, a first expansion screw, a positioning opening, a top seat fixing hole and a second expansion screw are used cooperatively, so that the fixed base and a fixed top seat can be fixedly installed at the bottom and the top of a building conveniently, the toppling of the first aluminum plate, the second aluminum plate and the sandwich plates is avoided, the degree of stability of a wall is enhanced, the overall weight of the building is reduced to a certain extent, the bearing pressure of a bearing wall of the building is reduced, in the process of building a non-bearing wall, the labor intensity of workers is reduced, the construction period is shortened, a decorated house is free of peculiar smell, and a check-in person can check in at ease.

The invention discloses an environment-friendly building material. The environment-friendly building material comprises a base layer and a heat insulating layer, wherein the base layer is coated withthe heat insulating layer and is prepared from the following raw materials in parts by weight: 3-5 parts of meerschaum, 25-56 parts of quartz sand, 4-6 parts of mineral fibers, 1-2 parts of silicate,2-4 parts of calcium carbonate powder, 6-10 parts of perlite powder, 2-5 parts of anticracking agent, 8-10 parts of polyphenyl particles, 3-5 parts of gypsum powder, 12-24 parts of humectant, 5-13 parts of carbon black, 3-9 parts of polyvinyl chloride, 12-18 parts of talcum powder and 2-8 parts of cellulose powder. The environment-friendly building material is relatively good in energy saving performance and better in effect and can be popularized in large area.

The invention provides a refrigerator. The refrigerator comprises a first chamber, a second chamber, an air inlet duct and an air return duct. An evaporator is contained in the first chamber, a compressor is contained in the second chamber, and the air inlet duct and the air return duct communicate with the first chamber and the second chamber; a dehumidification assembly is arranged in at least one of the air inlet duct and the air return duct; when the refrigerator is in a defrosting mode, humid and hot air in the second chamber enters the first chamber through the air inlet duct, the humid and hot air is converted into dry and hot air when flowing through the dehumidification assembly, then the evaporator is defrosted, and the defrosted air returns to the second chamber through the air return duct; hot air is dried, the defrosting effect is improved, the problem that water vapor in hot air aggravates frosting of the evaporator is avoided, heat in the second chamber is fully utilized, the evaporator is defrosted, extra electric energy does not need to be consumed, the energy utilization rate of the refrigerator is improved, pressure balance in the first chamber is guaranteed, and the service life of the refrigerator is prolonged. And the temperature of the first chamber can be maintained in the defrosting process of the refrigerator.