6results about How to "Evenly across" patented technology

The utility model provides an absorption tower conical sieve plate tray for a nitric acid device, which relates to the technical field of chemical equipment and comprises a tray main body and a positioning column, a tray sieve plate is mounted in the tray main body close to the top surface, foot frames are distributed in the tray main body in a linear array manner, and a tray main beam is arranged in the center of the tray main body. The bottom surface of the tower tray main beam is bolted with the surface of the bottom frame at the bottom, the top surfaces of the bottom frames at the two sides of the tower tray main beam are bolted with second beams, the top surface of the tower tray main beam is bolted with pressing and fixing discs, cooling coils are arranged between the adjacent second beams, and cooling coils are arranged between the adjacent pressing and fixing discs; the S-shaped cooling coil obviously prolongs the flowing path of a cooling medium in the tower tray, so that the cooling medium has more time to be in contact with rising gas in the downward flowing process, the sufficient mass transfer reaction is promoted, the uniformity of gas-liquid contact is optimized, the chemical reaction rate is increased, and the output capacity of nitric acid in unit time is also improved.

This utility model relates to the technical field of pepper drying equipment, and in particular to an adjustable multi-layer circulating hot air drying box for pepper drying. It includes a main body, with a heating component and a drying component fixedly connected to the top of the main body. The utility model allows for adjustment of the height of the drying rack by utilizing the placement of different trays. This adjustable height allows for flexible adjustment of the drying position according to the moisture content and drying degree of different peppers. Evenly spaced ventilation holes inside the trays ensure that hot air can pass evenly through the peppers, improving drying efficiency. A second circulating air duct at the top of the drying box guides hot air from the top to the bottom, while a first circulating air duct at the bottom guides hot air from the bottom to the top, thus forming an up-and-down circulating hot air flow, ensuring uniform temperature distribution within the drying box.

This utility model discloses a pre-cooling device for fine aggregate in concrete production, including a cooling box with guide grooves on its front and rear inner walls, and a vibration mechanism. The vibration mechanism includes guide rods, sliders, and springs. Guide rods are respectively provided between the upper and lower inner walls of the guide grooves, and sliders are slidably connected inside the guide grooves. The middle part of each slider is slidably connected to the outside of a guide rod inside the same guide groove. The inner upper surface of each of the four sliders is fixedly connected to the lower surface of a microporous mesh plate. Springs are movably sleeved on the outside of the guide rods, and the springs are located between the lower surface of the sliders and the bottom wall of the guide groove. This pre-cooling device for fine aggregate in concrete production effectively improves the pre-cooling efficiency and quality of fine aggregate, thereby improving the performance and quality stability of concrete, ensuring the smooth progress of concrete production and the reliability of product quality.

The invention discloses waste gas purification equipment for plastic product processing. Relates to the technical field of plastic processing waste gas purification appliances, and comprises a first tank body, a gas inlet pipe mounted on the first tank body in a communicating manner, and a second tank body, a third tank body and a fourth tank body which are sequentially communicated from bottom to top, exhaust assemblies for scattering and filtering waste gas are mounted in the second tank body and the third tank body; a filtering assembly for filtering and dehumidifying the waste gas is mounted in the fourth tank body; through the adaptive design of a rotating plate, a torsional spring and a dispersing roller, self-adaptive scattering of waste gas and impurity collection are achieved, and in cooperation with the structural design that water vapor flows back to the first tank body along a spiral blade, the continuity and convenience of equipment operation are improved; through the cooperation of the cross pipe, the nozzle and the stirring plate, the liquid is driven to stir by the exhaust gas spraying reaction force, the utilization rate of the purification liquid and the filter material is improved, and the consumable loss and the use cost are reduced.

The utility model particularly relates to a microwave cooking utensil which comprises a machine body, a microwave generating device and an antenna assembly, the antenna assembly comprises an antenna body, and the antenna body can rotate outside a cooking cavity of the machine body and is used for guiding microwaves generated by the microwave generating device into the cooking cavity. The antenna body is of a circular plate-shaped structure, the antenna body is provided with a preset area, at least one feed port is formed in the preset area, so that the impedance, located outside the preset area, of the antenna body is smaller than that of the preset area, and the distance between the geometric center of the preset area and the rotating axis is larger than or equal to 1 / 3 of the wavelength of microwaves in the first direction; the first direction is the arrangement direction of the rotation axis of the preset area and the antenna body. According to the microwave cooking utensil, the preset area is arranged on one side of the antenna body, so that microwaves can be mainly radiated from the preset area, and directional heating of food is achieved.

The invention discloses a train driver anti-fatigue device and method based on multi-mode perception and stimulation, and relates to the technical field of anti-fatigue devices.The train driver anti-fatigue device comprises a vehicle-mounted end machine, and the vehicle-mounted end machine is arranged on a driving platform and electrically isolated from a train TCMS bus; the vehicle-mounted terminal machine comprises a multi-mode sensor array which is used for synchronously collecting a face visible light image, an infrared thermal image, a millimeter wave radar micro-motion signal, a voice acoustic signal and a steering wheel holding pressure distribution signal of a driver; and the edge calculation unit is internally provided with a neural network SoC. According to the train driver anti-fatigue device based on multi-modal sensing and stimulation, through the full-closed-loop design of multi-modal sensing, edge real-time analysis, multi-channel collaborative intervention and cloud dynamic optimization, a multi-modal sensor array synchronously collects driver state signals from multiple dimensions such as vision, physiology and behaviors; in combination with real-time fusion analysis of an edge calculation unit, fatigue features can be captured more accurately, and misjudgment of a single signal is avoided.