7results about How to "Eliminate dead ends" patented technology

The utility model relates to the technical field of medical detection experiment appliances, and discloses a medical detection reagent dissolving device which comprises a dissolving barrel, a sealing cover is detachably connected to the upper end of the dissolving barrel, a motor is fixedly connected to the sealing cover, the output end of the motor penetrates through the sealing cover and is connected with a stirring frame, and a butt joint cover is fixedly connected to the lower end of the dissolving barrel. The lower end of the butt joint cover is detachably connected with a collecting barrel, a connecting column is connected in the collecting barrel in an up-down sliding mode, the upper end of the connecting column is fixedly connected with a plugging disc, the lower end of the connecting column is fixedly connected with a butt joint disc, the upper end of the collecting barrel is provided with a plurality of flow guide holes, the plugging disc is matched with the flow guide holes, and the inner wall of the dissolving barrel is provided with a conical surface and an arc-shaped surface. According to the utility model, the dead angle of the cavity is eliminated, the residual reagent hanging on the wall is reduced, the arc-shaped surface is matched with the annular stirring frame to form a vortex region, the uniformity of reagent dissolution is improved, and the problem of poor dissolution effect of the existing device is solved.

The utility model relates to the technical field of release equipment. More specifically, the utility model relates to a PVA (Polyvinyl Alcohol) loosening machine. The PVA loosening machine disclosed by the utility model can be used for stirring and loosening a certain amount of PVA fibers and water. After PVA and water are put into the tank body, the slurry reaches the center height of the feeding hole of the guide cylinder, enters the guide cylinder from the feeding hole, and starts to be released; under the high-speed rotation of the rotor, the slurry is thrown out through the gap between the stator and the rotor, touches the inner wall of the tank body and the baffle plate to change the direction, and upwards returns to the feeding hole again, so that an up-and-down circulating flow pattern is formed in the tank body. In this way, plane rotation and up-down mixing of slurry in the tank body are achieved, it is guaranteed that fibers in the tank make full contact with water and are dispersed, PVA fibers are fully loosened, no bunchy fibers exist basically, and the good dispersion effect is achieved.

This invention belongs to the field of lithium-ion production technology, and specifically relates to a high-efficiency and energy-saving mixing system for petroleum coke and pitch used in the production of aluminum electrolytic anode carbon blocks. The system includes a working plate with a material discharge hole at its top, and two rotating support seats symmetrically fixed to the top of the working plate. A large mixing cylinder is rotatably mounted on each of the two rotating support seats, with a discharge pipe connected to its outer side. The large mixing cylinder has an elliptical hollow structure, wider in the middle and narrower at both ends, used to accommodate and mix petroleum coke and pitch raw materials. Two annular support members are fixedly installed on the outer sides of both ends of the large mixing cylinder, and these two annular support members rotatably engage with the two rotating support seats. This invention achieves bidirectional reverse mixing, dual-mode heating for energy saving, precise temperature control and insulation, leak-proof sealing, and high-efficiency production, improving the quality and efficiency of anode carbon block production while reducing energy consumption.

The utility model relates to the technical field of yeast fermentation ventilation, and discloses a multistage flow guide pore plate and internal circulation coordinated yeast room uniform air supply device which comprises an air supply assembly and an internal circulation assembly which are mounted in a yeast room, the air supply assembly comprises an air uniformizing module mounted at an air inlet of the koji room and an air outlet module mounted at an air outlet of the koji room; the whole air uniformizing module is of a conical structure, and an air supply hole plate net is installed at the air outlet end of the air uniformizing module. The interior of the air uniformizing module is divided into four air supply areas, a plurality of flow guide plates are installed in the air supply areas at equal intervals, and the sizes of the flow guide plates are gradually decreased in a gradient mode according to the airflow direction. The internal circulation assembly is arranged in the center of the top of the koji room. The flow guide plates in gradient design are combined with the pore plate net for throttling and speed reduction, so that layered regulation and control, accurate flow guide and uniform speed reduction of airflow are realized, and the problem of non-uniform air supply speed in the prior art is solved; outer circulation air supply is matched with inner circulation, double-circulation regulation and control are achieved, and temperature and humidity layering is reduced.

The application belongs to the technical field of waste gas harmless treatment, in particular to an epoxy powder coating production waste gas harmless treatment device, which comprises a filter box, a plane filter plate is embedded in the filter box, gas collecting equipment is arranged on the top of the filter box and corresponds to the plane filter plate; a first horizontal moving seat is arranged below the plane filter plate, a strip-shaped nozzle is clamped on the first horizontal moving seat, and the top of the strip-shaped nozzle is slidably connected to the bottom of the plane filter plate; in the application, the airflow is guided from top to bottom and the U-shaped pipe is designed to turn, so that the waste gas forms a clear and coherent flow path in the filter box, the primary filtration is closely connected with the secondary water vortex filtration, the airflow dead angle is effectively eliminated, the overall filtration efficiency is improved, the gas-liquid turbulent contact is significantly strengthened by the secondary water vortex filtration mode, the fine dust can be efficiently captured, the soluble harmful components can be simultaneously removed, and thus the purification depth and emission safety are greatly improved.

The utility model discloses a gate valve for powder conveying. The gate valve comprises a valve rod, a valve body and a gate plate. The core improvement is that a rubber sleeve is integrally embedded in the inner wall of the valve body channel, and an inner hole of the rubber sleeve adopts a continuous convergence structure design: the inner diameter is gradually reduced from the opening part of the valve body channel to the middle part to form a dead-corner-free inclined surface runner, so that powder automatically slides to the middle part of the channel under the action of gravity, and the risk of material accumulation and blockage of a traditional horizontal valve cavity is thoroughly eliminated. The rubber sleeve generates radial resilience force when being extruded by the flashboard, so that adhered powder can be stripped to realize self-cleaning, and the abrasion of the sealing surface can be dynamically compensated. According to the valve, through the cooperation mechanism of inclined plane flow guiding and elastic self-compensation, zero leakage is guaranteed, and meanwhile the blocking problem in the powder conveying process is solved.

The utility model relates to floatation device technical field, specifically disclose a quartz sand production is with mechanical stirring type floatation device, including device body, the inside of device body is provided with the stirring piece, the bottom end intercommunication of device body outer wall has the discharge pipe, the right side of device body is opened in the penetration and is provided with the bubble discharge port, the top of device body is provided with the apron, the bottom of apron is provided with dynamic airflow type foam cleaning structure, through the air flow that blower produces enters the air collection cavity through telescopic hose, blows out through the nozzle, nozzle dynamic movement forms directional air curtain, blows the foam of each position in device body to the bubble discharge port, eliminates the foam stagnation dead angle, makes the foam timely discharge, ensures that floatation work carries out continuously efficiently, further through dynamic airflow type foam cleaning structure expands the range of air flow cleaning, can carry out efficient cleaning to the foam in device body, avoids the foam accumulation in the device, effectively improves the floatation efficiency.