10results about How to "Adjustable area" patented technology

The utility model provides an adaptable hydrogen-doped natural gas water heater burner, which belongs to the technical field of gas water heater burners, and is characterized in that a plurality of first openings and a plurality of second openings are formed in a first fire cover on one side of an injection outlet, and a plurality of third openings and a plurality of fourth openings are formed in a second fire cover on the other side of the injection outlet; the first opening is communicated with the third opening to form a main fire hole; the second opening and the edge of the second fire cover jointly define an auxiliary fire hole located on the side of the first fire cover. The fourth opening and the edge of the first fire cover jointly define an auxiliary fire hole located on the side of the second fire cover. The size of the main fire hole, the size of the auxiliary fire hole and the distance between the main fire hole and the ejection outlet and the distance between the auxiliary fire hole and the ejection outlet can be adjusted. The distance between the first side plate and the second side plate is adjusted, so that the area and the height of the fire hole are adjustable, the area of an injection inlet is adjusted through the wind shield, the burner can adapt to combustion of hydrogen-doped natural gas with different hydrogen contents, the backfire risk is reduced, and the heat efficiency is improved.

The invention belongs to the technical field of veterinary drug processing, and particularly relates to a feeding mechanism of a powder veterinary drug racking machine, which comprises a feeding pipeline, a plurality of supporting legs are arranged on the lower side of the feeding pipeline, feeding blades are rotatably arranged at two ends of an inner cavity of the feeding pipeline, and the upper end of the right side of the feeding pipeline communicates with and is fixedly connected with a storage bin. The feeding pipeline is further provided with an adjustable splash-proof two-way discharging mechanism used for enabling powder veterinary drugs to fall into a receiving opening of the racking machine. By means of the adjustable splash-proof type two-way discharging mechanism, after a hard pipe stretches into a material receiving opening of the racking machine, according to the size of the redundant space between the hard pipe and the material receiving opening, the elastic cloth is stretched through the connecting rod, the redundant space between the material receiving opening and the hard pipe is covered with the elastic cloth, and at the moment, in the feeding process, the material receiving opening and the hard pipe are separated from each other. The powder veterinary medicine splashing due to impact can be intercepted by the elastic cloth, so that the situation that the powder veterinary medicine is splashed out of the material receiving opening, and then normal conveying work is affected is avoided.

The utility model belongs to the technical field of plastic packing box, concretely relates to disposable plastic packing box and lid body structure of microwave heating, a lid body structure, including plastic packing box cover, a plurality of fixed venting slot areas are set up on plastic packing box cover, the upper side of plastic packing box cover is equipped with the baffle that can shield fixed venting slot area, a plurality of and fixed venting slot area one -to -one corresponding movable venting slot area are set up on the baffle, the baffle can be movable on the upper side of plastic packing box cover, to adjust the range of fixed venting slot area shielding of baffle, disposable plastic packing box of microwave heating, including plastic packing box body and lid body structure. The utility model can adjust the steam exhaust efficiency inside packing box according to the different of food, reach the purpose of safe pressure relief, and reduce the influence of food taste caused by excessive loss of water in food inside packing box.

The application relates to a sodium titanate nanofiber / reduced graphene oxide composite electrode material and a preparation method and application thereof. The composite electrode material has a two-dimensional sheet structure, the particle size is 1-6 mu m, the thickness is 10-20 nm, is composed of a few-layer reduced graphene oxide and sodium titanate nanofibers with a diameter of 5-10 nm loaded on the reduced graphene oxide, and is prepared by taking the few-layer reduced graphene oxide as a template, uniformly loading titanium dioxide particles, and then carrying out hydrothermal treatment in an alkali solution. Compared with the prior art, the synthesis method is simple in process, easy to scale up, and high in controllability. As a negative electrode of a sodium ion battery or a positive electrode of a sodium battery, the sodium titanate nanofiber / reduced graphene oxide composite electrode material has the advantages of high initial coulomb efficiency, low working voltage, high capacity, excellent rate characteristics and cycle stability, and has a broad market application prospect.

The application relates to the technical field of semiconductor photoelectric devices and thin film manufacturing, and particularly discloses a preparation method of a light detector based on a sputtering hybrid semiconductor thin film. The prepared light detector comprises, from bottom to top, a transparent conductive substrate, a bottom charge transport layer, a hybrid semiconductor light absorption layer, a top charge transport layer and a metal electrode. The hybrid semiconductor light absorption layer is prepared by using a magnetron sputtering process based on target self-heating. The thermal electron emission effect of the target self-heating is used to excite high-density plasma at a low working voltage, to rapidly and lowly damage the target for sputtering, and to form a dense and pure-phase hybrid semiconductor thin film. The application uses a multi-dimensional method of adjusting the cathode surface magnetic flux, adjusting the working voltage and target self-heating to improve the plasma density in the chamber. While realizing high-speed deposition of 30-500 nm / min, the hybrid semiconductor thin film defect density is reduced and the photoelectric performance of the light absorption layer is improved.

The present invention discloses a filamentous algae collection and cleaning device and a collection and cleaning method thereof. The collection and cleaning device comprises a collection and dehydration mechanism and a traction mechanism; the collection and dehydration mechanism comprises a bearing component, a first rotating component, a second rotating component, a winding rope, an interception component and an extrusion dehydrator, the first rotating component, the second rotating component and the extrusion dehydrator are all installed on the bearing component, the winding rope can be detachably connected with the first rotating component, the second rotating component and the traction mechanism, the first rotating component can wind the winding rope, the second rotating component can drive the winding rope to rotate around its axis, the interception component is installed on the bearing component and is located above the extrusion dehydrator, the interception component is used to peel the filamentous algae on the winding rope into the extrusion dehydrator, the extrusion dehydrator is used to perform extrusion dehydration treatment on the filamentous algae, and the traction mechanism can pull the winding rope to move. The present invention can be applied to the cleaning of filamentous algae blooms in large areas of water, saving manpower and being highly efficient.

The application discloses a kind of solid supported copper-based N-heterocyclic carbene catalytic materials and preparation method and application thereof, and it is related to material synthesis technical field.The preparation method of the catalytic material includes: cuprous oxide is reacted with N-heterocyclic carbene ligand containing bromine group in solvent, and copper-based N-heterocyclic carbene complex is formed;The complex is subjected to Sonogashira coupling reaction with alkyne compound under the action of catalyst, and bromine group on the complex is coupled with alkyne compound and occurs copolymerization, forms porous organic polymer skeleton, and copper-based N-heterocyclic carbene complex is distributed in the skeleton, and solid supported copper-based catalytic material is obtained;Wherein alkyne compound is selected from 1,3,5-triethynylbenzene or 1,3,5-tri (4-ethynylphenyl) benzene.The obtained catalytic material has porous organic polymer skeleton, and copper active species is uniformly distributed in the whole material, belongs to heterogeneous catalytic material, is easy to separate and recycle, can be recycled, and shows excellent catalytic performance in alkyne alkylation reaction of trifluoromethyl ketone.

This utility model discloses a desulfurization device for waste gas from a thermal power plant. A liquid pump is installed on one side of the material tank, and a connecting pipe is connected to the outlet end of the pump. A flexible hose is connected to the lower end of the connecting pipe, and a drain pipe is connected to the lower end of the flexible hose. Spray nozzles are symmetrically arranged on the lower surface of the drain pipe. A motor is installed on the outside of the desulfurization tower, and a rotating shaft is connected to the drive end of the motor. A speed-reducing plate is also installed inside the desulfurization tower, and speed-reducing holes are opened inside the speed-reducing plate. An electric lifting rod is installed on the upper surface of the desulfurization tower, and a baffle is slidably installed on one side of the speed-reducing plate. This utility model relates to the field of waste gas treatment technology for thermal power plants. The speed-reducing holes opened in the speed-reducing plate can reduce the flow rate of the waste gas, allowing for better desulfurization inside the desulfurization tower. Simultaneously, the operation of the electric lifting rod causes the speed-reducing plate to rise and fall, thereby adjusting the area of ​​the speed-reducing holes and achieving better desulfurization.

The utility model discloses a litter carrying prevention cat litter basin which comprises a cat litter basin body and further comprises a plurality of telescopic rods which are erected at an inlet and an outlet of the cat litter basin body at intervals in an adjustable mode. The interval adjusting assemblies are symmetrically arranged at the two ends of the multiple telescopic rods and used for adjusting the intervals of the multiple telescopic rods at the same time; the collecting bags are arranged at the bottoms of the telescopic rods and are used for collecting the cat litter falling from gaps of the adjacent telescopic rods, and the sizes of the openings of the collecting bags can be adjusted; and the clamping piece is arranged at the inlet and outlet of the cat litter basin main body and is used for clamping the distance adjusting assembly and the cat litter basin main body. According to the utility model, the plurality of telescopic rods and the spacing adjusting assemblies are arranged, the frame body formed by the telescopic rods and the spacing adjusting assemblies is arranged at the inlet and outlet of the cat litter basin main body as the cat litter leakage plate, and the spacing between the adjacent telescopic rods and the side length and area of the frame body are changed by drawing the telescopic rods and using the spacing adjusting assemblies, so that the area of the cat litter leakage plate is adjustable; therefore, different habits and body types of cats can be adapted.