33results about How to "Avoid recondensation" patented technology

The invention discloses a method for carrying out fluidized drying on lignite by microwaves. The method comprises the steps of: pre-drying crude lignite by a microwave device with hot air, and then carrying out fluidized drying on the lignite by a fluidizing bed with hot air so that the free water content in the crude lignite is lower than 1 percent. By utilizing the method disclosed by the invention, large-scale, rapid, low-energy-consumption and deep drying production of lignite can be realized.

A method for controlling a refrigerator, according to an embodiment of the present invention, comprises: a step in which it is determined whether a period of defrosting (POD) for defrosting a freezing compartment and a deep-freezing compartment has elapsed; a step in which, when it is determined that the period of defrosting has elapsed, a deep cooling operation for cooling at least one from among the temperature of the deep-freezing compartment and the temperature of the freezing compartment to be lower than a control temperature is performed; and a step in which, when the deep cooling operation finishes, a defrosting operation for defrosting the freezing compartment and the deep-freezing compartment is performed. When the defrosting operation starts, a freezing compartment valve is closed so as to prevent cold air from flowing to a freezing compartment evaporator and a heat sink, and at least a portion of a freezing compartment defrosting section and at least a portion of a deep-freezing compartment defrosting section overlap with each other.

A method for controlling a refrigerator according to an embodiment of the present invention is characterized by comprising: a step for determining whether a defrosting period (POD) for defrosting a freezing chamber and a deep freezing chamber has elapsed; a step for, when it is determined that the defrosting period has elapsed, performing a deep cooling operation for bringing at least one among the temperature of the deep freezing chamber and the temperature of the freezing chamber down to a temperature lower than a control temperature; and a step for defrosting the deep freezing chamber when the deep cooling operation is terminated, wherein, when the defrosting of the deep freezing chamber is started, a freezing chamber valve is closed to block cold air flow to a heat sink, the defrosting of the deep freezing chamber includes cold sink defrosting and heat sink defrosting performed after the cold sink defrosting is completed, and while the heat sink defrosting is being performed, a deep freezing chamber fan is driven to remove water vapor generated during the cold sink defrosting.

The invention relates to a system and method for preparation, grinding and decentralized processing of a simulated granite exterior wall coating. The system comprises a working frame, a grinding frame, a motor, a spindle, an air pump, grinding disk sets and fixed grinding disks, wherein a spindle is installed inside the grinding frame by a bearing; the grinding disk sets are uniformly installed onthe spindle; the fixed grinding disks are uniformly placed inside the grinding frame; a left end of the spindle is connected to an output shaft of the motor; the motor is installed on the working frame; the working frame is installed on the left end of the grinding frame; and the air pump is installed on the bottom end inside the working frame. The system and method provided by the invention havethe beneficial effects that problems like that an existing simulate granite exterior wall solid coating is directly exposed in air during fabrication; the adjacent solid coating can be easily adheredtogether to form cakes; and a worker generally places the solid coating at a screen before bagging and extrudes the coating by an extruding mode, so mesh holes of the screen may be blocked by the solid coating can be solved.

The invention relates to an ammonia evaporation and buffering integrated device comprising a tank body, a liquid ammonia evaporator and an ammonia buffer which are mutually connected and arranged in the tank body, the liquid ammonia evaporator is connected with a liquid ammonia pipeline, the liquid ammonia pipeline is provided with a liquid ammonia input interface which is positioned outside the tank body, the ammonia buffer is connected with an ammonia pipeline, and the ammonia pipeline is provided with an ammonia output interface which is positioned outside the tank body. The device has simple overall structure, small occupied space and convenient installation, the liquid ammonia evaporator and the ammonia buffer can be simultaneously ensured to be in the appropriate temperature environment by controlling the temperature of the tank body, thereby avoiding the re-condensation of ammonia in the ammonia buffer caused by temperature change.

The invention discloses a track deicing device. The track deicing device comprises a rack installed on a track inspection car, and one or more combined deicing units used for deicing steel rails of tracks are installed on the rack. Each combined deicing unit comprises a mechanical crushing type deicing assembly, a sweeping type deicing assembly and a heat source deicing assembly, wherein the mechanical crushing type deicing assembly, the sweeping type deicing assembly and a heat source outlet of the heat source deicing assembly are installed on the rack in sequence in the advancing direction of the track inspection car. The track deicing device has the advantages of being free of damage to the surfaces of the steel rails, high in deicing efficiency, small in energy consumption, reasonable in structural design, low in manufacturing cost, broad in application prospect and the like.

The invention discloses a self-cleaning toilet mirror. The self-cleaning toilet mirror comprises a box body. A mirror plane is attached to the front face of the box body, an upper rail groove is formed in the top of the front face of the box body, and a linear motor sliding table is arranged at the bottom of the front face of the box body. A tube groove is formed in the front face of the box body, and an electric heating tube assembly is embedded into the tube groove. A scrubbing assembly comprises a scrubbing assembly support, the top and the bottom of the scrubbing assembly support are connected with a top plate and a bottom plate respectively, and a scrubbing sponge block is fixedly arranged between the top plate and the bottom plate. The plate edge of the top plate is connected with a rotating base, and the rotating base is provided with idler wheels in a rotating mode. The scrubbing assembly vertically stretches over the mirror plane, the idler wheels on the top of the scrubbing assembly support are mounted in the upper rail groove in a rotating mode, and the bottom plate at the bottom of the scrubbing assembly support is fixed on a sliding table body of the linear motor sliding table. The self-cleaning toilet mirror has the excellent advantages of being convenient to use, simple in structure, low in cost and the like.

The invention discloses an icebreaking device used for municipal engineering. The icebreaking device comprises a seat. A machine frame is installed at the rear end of the seat. A water storage cavityis installed on the seat. A water outflow pump is installed at the top of the water storage cavity. The machine frame comprises an icebreaking frame and a snow sweeping frame. The snow sweeping frameis located at the rear end of the icebreaking frame. A rotary sliding rod is transversely arranged in the snow sweeping frame. The rotary sliding rod is transversely installed on the snow sweeping frame in the left-right direction. A sliding pipe sleeve is installed on the rotary sliding rod. A cylindrical cam and a snow sweeping board are installed on the sliding pipe sleeve. An arc-shaped grooveis formed in the cylindrical cam. A frame board is installed on the side wall of the snow sweeping frame. A limiting rod is installed at the bottom end of the frame board. The bottom end of the limiting rod is limited and clamped in the arc-shaped groove. Crushed ice blocks or crushed snow can be swept in time, crushed ice is prevented from being frozen again, a one-time complete crushing effectis achieved, and the operation burden of environmental sanitation personnel is reduced.

The vaporization device of the present invention may comprise: a sprayer that mixes a source injected through a source injection port and a carrier gas injected through a carrier gas injection port, and sprays the mixed gas; a vaporizing part having first and second vaporizing spaces for vaporizing the mixed gas ejected from the atomizer, and discharging the vaporized gas as a process gas through an outlet; and the heating part is used for keeping the mixed gas in the vaporization part at a preset temperature. The heating unit may include: a first heating unit arranged to surround the first vaporization space so as to maintain the temperature of the mixed gas in the first vaporization space; and a second heating part which is arranged together with the first heating part so as to surround the second vaporization space and maintain the temperature of the mixed gas in the second vaporization space.

The invention discloses a placement rack for a motorcycle frame. The placement rack comprises a heating layer, a high-temperature resistant insulation medium layer and a photoelectric layer. The heating layer comprises a heat transfer layer and resistance heating bodies. Multiple water drainage blocks are arranged on the lower surface of the heat transfer layer. The bottoms of the water drainage blocks are equipped with multiple through holes. Water absorbing cotton is arranged between every two resistance heating bodies. Movable cavities are arranged in the high-temperature resistant insulation medium layer. The lower parts of the movable cavities are provided with a venturi tube. A fan is arranged in the venturi tube. The end part of a high-temperature resistant insulation medium is provided with a motor used for turning on and off the fan. Multiple heat exchange tubes are arranged on the venturi tube. Air inlet holes are arranged uniformly in the high-temperature resistant insulation medium layer between the water absorbent cotton and the resistance heating bodies. The heat exchange tubes communicate with the air inlet holes corresponding to the heat exchange tubes. Compared with the prior art, heat is generated by the resistance heating bodies arranged on the high-temperature resistant insulation medium and transferred to the heat transfer layer. The heat transfer layer isused for preserving heat of the frame. Therefore, ice is prevented from forming the inside of a pipeline of the frame.

The invention belongs to the technical field of tree vegetative propagation methods, and specifically relates to a method for raising seedlings by high grafting of velvet crape myrtle. The method comprises the following steps: selecting and cultivating rootstock seedlings: selecting 25-year-old seedling crape myrtle trees as rootstocks; velvet crape myrtle The scion is grafted to the crape myrtle tree, and the cultivation base is selected; the selection and collection of the scion: the developing branches of the velvet crape myrtle sapling are selected as cuttings, and 2-3 buds are reserved for each cutting; the upper joint is flat, 1.3cm away from the terminal bud, and the lower joint is It is flat, below the internodes or below the buds to facilitate healing; the present invention is mainly used to provide a method for raising seedlings by high grafting of velvet crape myrtle. Compared with the prior art, the method for raising seedlings by high grafting of velvet crape myrtle of the present invention not only has simple conditions, The operation is easy, the reproduction cost is low, and it can also significantly increase the success rate of grafting, reduce the incidence of powdery mildew, and obviously improve the quality of grafted seedlings.

The invention discloses a preparation method of a cationic rosin latex emulsifier, which comprises the following steps: Step 1, using a cationic monomer to prepare a cationic monomer solution; Step 2, preparing a monomer solution; Step 3, preparing an initiator solution; Step 4 , adding the surfactant to the reaction kettle, then adding deionized water, and heating up; step five, adding cationic monomer solution, monomer solution and initiator solution at one time; step six, distilling deionized water, adjusting the solid content to 35 % that is cationic rosin latex emulsifier. The invention adopts static aqueous solution polymerization, the production process is simple, the production efficiency is high, and it can be compounded with non-ionic surfactant to produce strong surface activity, adsorbed on the interface to form a complex, oriented and closely arranged, and form a high-strength interface film to prevent droplets Or re-condensed small solid particles.

A molecular beam source for stacking organic thin films capable of forming a uniform thin film on the film-forming surface of a large-sized substrate without causing deposition or separation of film-forming materials at openings where molecules of the film-forming materials are released, wherein the valve 33 is provided in the space from the molecular heating part 12 to the molecule releasing opening 14 for releasing the molecules of the generated film forming material to the film forming surface. In addition, heaters 18 and 19 are provided at the molecule releasing opening 14 side for heating the molecules of the film-forming material to be released. An outer guide 13 with conical guide walls and an inner guide 16 with conical guide walls are arranged at the sides of the molecule release opening 14 , which are arranged in said outer guide. Between the outer guide 13 and the inner guide 16, a molecule release channel 17 is formed, the diameter of which gradually increases along the direction of molecule release. Heaters 18 and 19 are provided on the outer guide 13 and the inner guide 16, respectively, and besides these, a heater 20 is provided through the molecule release opening 14, whereby narrowing and / or clogging hardly occur at the release opening. .

The invention provides a method for catalytic oxidation degradation of wood chips by a novel polyoxometallate composite catalyst. The method comprises the following steps: blending wood chips, the catalyst and a solvent, and catalytically oxidatively degrading wood chips in an oxygen atmosphere, at a certain pressure and at a certain temperature to obtain oxidation products. The catalyst is a polyoxometallate / hydrotalcite composite catalyst containing two active centers: one catalytic active center is one or more acids selected from the group consisting of Keggin-type polyoxometallate phosphotungstic acid, silicotungstic acid, phosphomolybdic acid and silicon molybdenum; and the other catalytic active center is selected from one or more of the Dawson type, the notched Dawson type and the heteroatom-substituted Dawson type polyoxometallates. The reaction products include aromatic aldehyde and ketone compounds. Compared with the prior art, the invention relates to a novel polyoxometallate / hydrotalcite composite catalyst for high-efficiency catalytic oxidation degradation of wood chips to generate aromatic aldehyde and ketone compounds. According to the invention, an organic solvent such as alcohol is selected as a reaction medium; wood chips, a catalyst and a small molecule compound are directly separated by centrifugation; and the extraction process is avoided. The conditions are mild, the operation is simple, and the catalyst is cheap and easily available.