63results about How to "The technical principle is simple" patented technology

The invention relates to a microalgae continuous reaping device and method. The reaping device comprises a sedimentation column. The lower face of the sedimentation column is connected with a concentration column with the pipe diameter smaller than that of the sedimentation column. The lower face of the concentration column is connected with an algae-out pipe with the pipe diameter smaller than that of the concentration column. The algae-out pipe is provided with a valve. The outer wall of the sedimentation column is connected with a water inlet and a water outlet. The water inlet is higher than the water outlet. A multi-hole energy dissipation basin is fixed on the inner wall of the sedimentation column. The energy dissipation basin is placed between the water inlet and the water outlet. According to the microalgae continuous reaping device, the characteristic that algae density is larger than water body density is used, after a high-flow-speed water body with many algae passes through the device, flow speed is lowered quickly, algae bodies are subjected to sedimentation and are gathered to be discharged out of the device, after separation, the water body can flow out of the device and enter a reactor for reusing, and then the purpose of water-algae continuous separating and reaping can be achieved. The device is simple in technology principle and convenient to operate, materials are cheap, and machining is convenient.

The invention discloses a weak formation tunnel settlement control structure and a construction method thereof, and belongs to the technical field of tunnel settlement control. The weak formation tunnel settlement control structure is characterized in that one or more tunnel units are included; the tunnel units comprise main tunnels, vertical shafts and oblique supporting tunnels; the top ends ofthe vertical shafts are connected with the main tunnels, and the two ends of the oblique supporting tunnels are connected with the main tunnels and the vertical shafts correspondingly to enable the main tunnels and the vertical shafts to be each in an oblique shape; and the main tunnels, the vertical shafts and the oblique supporting tunnels are provided with primary supporting structures and secondary lining structure correspondingly. After the vertical shafts and the oblique supporting tunnels are connected with the main tunnels, the main tunnels are effectively supported trough the primarysupporting structures and the secondary lining structure of the vertical shafts and the oblique supporting tunnels, the connecting strength can be fully ensured, rigidity is large, structure settlement and deformation can be effectively and quantificationally controlled, and line types and clearances of the tunnels can be fully ensured.

The invention discloses a liquid crystal display television with an infrared positioning function and an infrared positioning method of the liquid crystal display television. The method includes the steps that all infrared light sensing elements horizontally / perpendicularly arranged on the edge of a liquid crystal display screen are used for conducting current detection on infrared light source signals respectively, wherein the infrared light source signals are projected on the liquid crystal display screen, and one-to-one corresponding statistics is conducted on currents detected by the infrared light sensing elements; the currents detected by the infrared light sensing elements in the horizontal / perpendicular direction are compared, and the horizontal / perpendicular infrared light sensing element detecting the largest currents is determined; the distance between the horizontal / perpendicular infrared light sensing element detecting the largest currents and a point of origin is calculated, and corresponding position coordinates are generated; the position coordinates are fed back to a processor of the liquid crystal display screen, and the projection position of an infrared light source is displayed on the liquid crystal display screen through the processor in a cursor mode; the liquid crystal display television can have the infrared positioning function, and the functional effect of interactive entertainment between a user and the television is enhanced.