36results about How to "Block exchange" patented technology

The invention relates to a special film preservative for a cooked salted duck egg. Film preservatives with barrier performance, antibacterial properties and mechanical properties are prepared with natural degradable polyvinyl alcohol and chitosan as main base materials and stearic acid, glutaraldehyde, whey protein concentrate, nano-TiO2, nano-SiO2, Kelinggu, a solvent and other materials or processing aids as auxiliary materials; and based on the data of mechanical properties, barrier performance and antibacterial properties of films prepared from different formulas, the special film preservative for the cooked salted duck egg is obtained. The special film preservative has the following beneficial effects: the special film preservative can prevent exchange between substances in and out of the shell of the cooked salted duck egg and invasion by a variety of harmful microbes during storage of the cooked salted duck egg, exerts a certain bacteriostatic effect, reduces loss of dry matters and moisture, allows the cooked salted duck egg to maintain good storage quality and prolongs the high-quality shelf life of the cooked salted duck egg; moreover, the special film preservative replaces conventional plastic composite boiling bags in packaging, so the usage amount of plastics is lowered down, environmental pollution is reduced, production cost is decreased, and benefits are increased.

The invention discloses a sand-preventing method of an artificial borehole wall, and a material for sand prevention. The material for sand prevention comprises guide liquid, sand carrying liquid and promoting liquid which are prepared separately, wherein the guide liquid comprises the following components in percentage by weight: 0.5 to 20 percent of sodium chloride, 0.2 to 2 percent of calcium chloride, 0.1 to 1 percent of magnesium chloride, 0.2 to 4 percent of alkylphenol polyoxyethylene, 0.3 to 8 percent of an anionic surfactant capable of resisting calcium and magnesium ions and 0.01 to 6 percent of a dimethyl diallyl ammonium chloride-acrylamide-acrylic acid copolymer; the sand carrying liquid comprises the following components in percentage by weight: 0.01 to 5 percent of a dimethyl diallyl ammonium chloride-acrylamide copolymer and 0.5 to 20 percent of ammonium chloride; and the promoting liquid comprises the following components in percentage by weight: 8 to 22 percent of a penetrating agent and 18 to 35 percent of a dehydroxylation catalyst. The material for sand prevention performs sand prevention, can protect the stratum, has high sand carrying capability, reduces friction and enhances the consolidation strength, and the penetration ratio of the artificial borehole wall formed after sand prevention is more than 12 <mu>m<2>.

The invention discloses a portable refrigerated container and relates to the technical field of refrigeration. The portable refrigerated container comprises a container body and a cover body. The container body is provided with an opening. The container body comprises an inner waterproof layer, a first heat preservation layer and a shell. A reaction box used for accommodating dry ice is fixed to the inner wall of the container body. An exhaust fan is arranged on the cover body. The portable refrigerated container has a refrigerating state and a cold storage state. In the refrigerating state, the dry ice sublimes in the reaction box, the exhaust fan rotates, and gas generated during sublimation of the dry ice is exhausted; and in the cold storage state, the exhaust fan stop rotating. The portable refrigerated container is simple and reliable in structure and can achieve refrigeration outdoors.

The invention discloses a copper tape shielding control cable including jackets, steel band armor, first hollow layer, a heat insulation layer, a second hollow lay and an inner wire are arranged on that outermost layer, and the sheath is coat with a steel band armored layer, the steel band armored layer is coated with a water-proof layer, the inner side of the water-proof layer is connected with the inner wire through a plurality of buffer assemblies, a heat insulating layer is arranged in the middle between the water-proof layer and the outer side of the inner wire, and a first hollow layer is arranged between the heat insulating layer and the water-proof layer. The first hollow layer arranged in the invention separates the waterproof layer from the temperature insulation layer, which prevents the heat exchange to a large extent, and the second hollow layer separates the temperature insulation layer from the inner sheath, which further prevents the heat exchange, thereby improving thetemperature insulation effect of the copper tape shielding control cable; The temperature insulation layer, the first heat insulation plate and the second heat insulation plate provided in the invention further strengthen the temperature insulation effect and improve the adaptability of the copper tape shielded control cable in the high temperature environment.

The invention discloses a metallurgy solid-waste-type fireproof and flame-retarding coating and a preparing method thereof, and belongs to the field of metallurgy solid-waste resource utilization. Thecoating is prepared from acrylic resin, high chlorinated polyethylene resin, a compound catalyst, a foaming agent, a charring agent, a pro-oxygenic agent, a dispersing agent, turpentine, an anti-precipitation agent and a semi-dry-process desulfurized fly ash micro powder solution; the compound catalyst is a mixture of boric acid, amidinourea phosphate and ammonium polyphosphate; the semi-dry-process desulfurized fly ash micro powder solution is a mixture of semi-dry-process desulfurized fly ash micro powder and water. By means of the metallurgy solid-waste-type fireproof and flame-retarding coating, about 25% of production cost of an existing fireproof and flame-retarding coating is lowered, the flame-retarding performance of the fireproof and flame-retarding coating is improved, integration of metallurgy solid-waste resource utilization and flame-retarding performance in the field of coatings is achieved, the market competitiveness of the fireproof and flame-retarding coating is greatly enhanced, and the application range of the fireproof and flame-retarding coating is greatly enlarged; high-added-value application of the semi-dry-process desulfurized fly ash is achieved, a new idea of synergism with waste is expanded, and the relevant policy for energy saving, environmental friendly and circular economy is accorded with.

The invention provides a special anti-blocking agent for ammonium sulfate as well as a preparation method and application thereof. The anti-blocking agent is a water-soluble liquid anti-blocking agent, and is concretely prepared from 20 to 50 percent of water, 10 to 30 percent of volatile solvents, 20 to 40 percent of film-forming agents, at most 10 percent of habit modifiers, at most 10 percent of surfactants, at most 10 percent of crystal control agents and at most 3 percent of antifoaming agents. The special anti-blocking agent effectively overcomes the use defect of the oil and tablet anti-blocking agent; the anti-blocking effect is improved; meanwhile, the surface whitening, powdering and mildewing phenomenon of ammonium sulfate fertilizers can be effectively reduced; the preparationprocess is simple; the efficiency is high; the use is convenient; the special anti-blocking agent is suitable for industrialized preparation and is favorable for popularization and application.

The invention relates to the field of windows of livestock breeding sheds, in particular to an automatic sliding window of a livestock shed. The automatic sliding window comprises a sliding window body, the sliding window body comprises a window sash and a window frame arranged on the periphery of the window sash, glass is fixedly arranged in the window sash, the window sash is located in a slideway of the window frame in a horizontally slidable mode, the horizontal width of the window frame is at least two times that of the window sash, an inner groove face is arranged on the inner side face of a wall, the window sash is arranged on one of the left half side and the right half side of the window frame, and the other one of the left half side and the right half side of the window frame is fixedly embedded in the inner groove face of the wall. An automatic push-and-pull device is arranged between the bottom of the window sash and the window frame. The automatic sliding window is very suitable for animals such as pigs, sheep, rabbits and chicken raised in an intensive and large-scale livestock breeding mode, can play a very effectively active role in production management, environment control, biosafety and the like, and is auxiliary equipment worth popularizing.

The invention discloses application of fibroin and a fruit and vegetable storage method. The fibroin is applied to the preparation of a fruit and vegetable anti-cold-injury agent. The fruit and vegetable storage method comprises the following step that the fruit and vegetable anti-cold-injury agent containing the fibroin is applied on the surfaces of fruits and vegetables. According to the scheme,the fruit and vegetable anti-cold-injury agent has a good application effect on the storage of bananas and other fruits and vegetables. According to the technical scheme, the utilized fibroin can form a layer of edible protein film on the surfaces of the fruits and vegetables, the stable structure and excellent mechanical barrier characteristics of the film can be kept due to the fact that the fibroin contains a large number of hydrogen bonds and disulfide bonds and has hydrophobic interaction force, and the fibroin can significantly inhibit the decrease of cell membrane lipids in fruit peeltissue, thereby reducing the symptoms of cold injuries. The fibroin is natural, nontoxic and harmless, is easily soluble in water, and does not need to be treated with other chemical additives, therefore, after the fruit and vegetable anti-cold-injury agent is adopted, no harmful chemical substances can remain on the surfaces of the fruits and vegetables, so that the fruits and vegetables are safer and healthier, and the edible film formed by the fibroin is completely soluble in the water and does not pollute the water after use.

The invention discloses a preparation process of a warm-keeping and flame-retardant fabric. The process comprises the following steps of performing weaving treatment, namely weaving cotton, viscose fiber and modified polylactic acid fiber on a machine to obtain a fabric blank; dyeing the fabric blank; finishing the dyed fabric blank with an antistatic agent and a softening agent; performing soaping, hot washing and cold washing on a finished fabric until floating color of dye is washed; then carrying out color fixation treatment; and then carrying out drying and setting treatment through a setting machine, so as to obtain the warm-keeping and flame-retardant fabric. According to the invention, a cotton fabric is modified, the modified polylactic acid fiber is added to obtain a high-toughness and degradable blended fabric, and the fabric shows warm-keeping and flame-retardant properties, and has potential application value.

The invention relates to the field of windows for livestock sheds, and specifically relates to a sliding window for a livestock shed. The sliding window comprises a sliding window body; the sliding window body comprises two sashes respectively arranged in the top and bottom, and a window frame arranged in the peripheries of the two sashes; pieces of glass are fixedly arranged in the sashes; the sashes are vertically glidingly positioned into a window frame chute; the vertical height of the window frame is at least doubled the sum of the vertical height of two sashes; inner trench surfaces are arranged on the inner top surface and the inner bottom surface of the wall; the two sashes are arranged in the middle of the window frame; the upper end and the lower end of the window frame are respectively fixedly embedded into the inner trench surfaces on the inner top surface and the inner bottom surface of the wall; automatic sliding devices are arranged between the side surfaces of the sashes and the window frame. With the adoption of the sliding window, a low space for livestock can be ventilated well, light can fully irradiate the livestock, and the sliding window is beneficial for the stock farming.

This invention relates to an electrode for a capacitor with an electrode line (1) and with an electrode-body (2), which is contacted with the electrode-line (1) and on the surface of which a dielectric-layer (3) is arranged. Between the electrode-body (2) and the dielectric-layer (3) is arranged an inter-layer (4), which can prevent the exchange of material between the dielectric-layer (3) and the electrode-body (2). By means of the inter-layer (4), especially the diffusion of the oxygen from the dielectric-layer (3) into the electrode-body (2) can be prevented, thus the electrode has a larger long-time stability. In addition, this invention relates to a capacitor with the electrode of this invention as an anode.

The invention discloses a decorative thermal insulation guard bearing integrated dense rib composite prefabricated exterior wall plate. The exterior wall plate comprises a surface layer, a thermal insulation block layer is bonded to the inner side of the surface layer, the thermal insulation block layer is laid to form a grid structure, a glass fiber mesh cloth, heat insulation strips, rib beams and rib columns are orderly arranged between grids and around the thermal insulation block layer from bottom to top, the glass fiber mesh cloth is bonded to the surface layer, the heat insulation strips are laid on the glass fiber mesh cloth, pass through the glass fiber mesh cloth and are bonded to the surface later, the glass fiber mesh cloth coats the outer sides of the heat insulation strips, two sides of the glass fiber mesh cloth respectively wind bottom longitudinal bars of reinforcing bars of the rib beams and rib columns and are fixed through iron wire colligation, the rib beams and rib columns have reinforced concrete structures and are casted to the heat insulation strips, and the inner side surfaces of the rib beams and rib columns align at the inner sides of the thermal insulation block layer. The invention also discloses a preparation method of the exterior wall plate. The exterior wall plate has a simple structure, a compact inner structure and good heat preservation performances.

The invention discloses a low-temperature-resistant butterfly valve body and a production process thereof, and relates to the technical field of valve manufacturing. The butterfly valve body comprises a valve body main body, flange plates are arranged at the two ends of the valve body main body, and a fluid channel penetrates through the centers of the valve body main body and the flange plates; an upper valve shaft seat and a lower valve shaft seat are arranged above and below the valve body main body and located between the flange plates on the two sides respectively, upper valve necks integrally formed with the valve body main body are symmetrically arranged on the two sides of the upper valve shaft seat, and lower valve necks integrally formed with the valve body main body are symmetrically arranged on the two sides of the lower valve shaft seat; and an inner low-temperature-resistant structure is arranged on the inner wall of the valve body main body, and an outer low-temperature-resistant structure is arranged on the outer wall of the valve body main body. The butterfly valve body keeps good low-temperature resistance and keeps good sealing performance after being assembled with a butterfly plate and a valve shaft, in the production process, grinding and drilling equipment integrates the functions of grinding, drilling and position adjusting, grinding and drilling can be conducted synchronously, and the machining efficiency and machining precision of the butterfly valve body are improved.