6results about How to "No power required" patented technology

The utility model discloses a bridge foundation pile static load detection device belongs to the technical field of foundation pile static load detection, and its technical scheme main points include the platform of heaped loading, loading oil cylinder and counterforce structure, and the platform of heaped loading is composed of the counterweight block of splicing, and the counterweight block is connected through the mortise -and -tenon structure, is provided with the recess in the top of platform of heaped loading, is equipped with the support block in the recess, and the counterforce structure includes counterforce beam and support column, and the support column is fixedly installed on the platform of heaped loading through bolt, is installed in the side wall of counterforce beam and has displacement detection mechanism, and displacement detection mechanism includes the rack, three -stage transmission gear group and dial, and one end of rack is installed in the top of foundation pile, and the other end is intermeshed with the input end of three -stage transmission gear group, and the output of three -stage transmission gear group is connected through the pivot transmission with dial, and rack sliding installation is on counterforce beam, the utility model discloses have through the displacement of mechanical structure to realize the detection to the displacement of foundation pile.

This invention discloses a non-powered interception and overflow device and its application. The non-powered interception and overflow device includes a ditch body, an overflow weir, a water-retaining dike, a buoyancy-based water-retaining plate system, and a hook system. The non-powered interception and overflow device of this invention can be applied to the interception of non-point source pollution from agricultural tailwater and initial rainwater, urban rainwater runoff, and energy dissipation in rivers and ditches. This invention requires minimal management and maintenance and features non-powered operation, automatic interception, low maintenance costs, and wide application range. It can intercept agricultural tailwater and urban initial rainwater and has broad application prospects.

The application provides a method for recovering tungsten from molybdenum tailings, comprising the following steps: centrifugal gravity separation of the molybdenum tailings to obtain centrifugal concentrate and centrifugal tailings; feeding the centrifugal concentrate into a spiral chute for secondary separation to obtain spiral chute concentrate and spiral chute tailings; conventional flotation of the spiral chute concentrate to obtain primary roughing concentrate, primary scavenging concentrate and scavenging tailings; mixing the primary roughing concentrate and the primary scavenging concentrate and feeding the mixture into a cyclone classifier, the overflow of the cyclone classifier being subjected to gravity separation operation on a table, and the underflow of the cyclone classifier being subjected to grinding in a ball mill, the ball mill and the cyclone classifier forming a closed circuit grinding system to obtain table concentrate and table tailings; three times of cleaning and one time of cleaning scavenging of the table tailings to obtain flotation concentrate and cleaning scavenging tailings; mixing the table concentrate and the flotation concentrate to obtain tungsten concentrate; and mixing the centrifugal tailings, the spiral chute tailings, the scavenging tailings and the cleaning scavenging tailings to obtain total tailings. The application improves the recovery rate of the tungsten concentrate.

This invention relates to the field of medical and nursing device technology, and discloses a suction and drying device, system, and method for a urination and defecation care system. The system includes a connecting line and internally houses a sewage pipe and a warm air pipe. The main unit is connected to the urinal via the connecting line to form a circulation loop. It includes a sewage tank, a filter module, a brushless fan, a three-way valve, and an auxiliary heating module, sequentially connected between the sewage pipe and the warm air pipe. The three-way valve is also connected to the fan via a pipe, working in conjunction with the auxiliary heating module to preheat the warm air pipe before drying. The brushless fan creates a slight negative pressure zone within the urinal, drawing air into the main unit for deodorization, overcoming the problem of odor escaping from the urinal in traditional urination and defecation care systems. Simultaneously, a portion of the exhaust air from the brushless fan participates in the return air circulation, preheating the warm air pipe and solving the problem of cold air escaping during the initial drying stage in traditional urination and defecation care systems.

This utility model discloses a non-powered multi-stage hydrocyclone classifier and mineral processing system. The classifier includes a first hydrocyclone, a second hydrocyclone, and a third hydrocyclone; the diameter of the first hydrocyclone is smaller than that of the second hydrocyclone but larger than that of the third hydrocyclone. The overflow port of the first hydrocyclone is higher than and connected to the feed port of the second hydrocyclone; the sand discharge port of the second hydrocyclone is higher than and connected to the feed port of the third hydrocyclone; the overflow ports of the second and third hydrocyclones are connected to the feed port of the stirring device. The non-powered multi-stage hydrocyclone classifier proposed in this utility model achieves precise control of the classification of grinding products by connecting multiple hydrocyclones in series, thereby greatly reducing the probability of coarse particles being washed away and effectively improving the qualified rate of feed fineness and the final flotation recovery rate.

The utility model provides a tailing sand gravity coordination pre -homogenization system relates to mine filling technical field. The pre -homogenization system includes storage bin group and mixes hopper. The storage bin group contains at least three parallel warehouses, and each warehouse is equipped with independent feed inlet, bottom double curvature conical discharge port and gate; The curvature radius of the steep section of the discharge port lower part is less than 50% of the curvature radius of the upper gentle slope section, and the included angle between the generatrix of the lower steep section and the horizontal plane is greater than or equal to 75 degrees. The mixing hopper is located below the storage bin group, and the center axes of all discharge ports are located on the distribution circle with the center of the mixing hopper as the center; The inner wall of the mixing hopper is provided with guide plates, each guide plate is inclined downward along the center line and is symmetrical to both sides, and the center line is the highest point, and the inclination angle is 30-35 degrees. When the device works, multiple warehouses discharge synchronously, the material accelerates down through the discharge port, is guided by the guide plate, and is mixed under the action of gravity. The system eliminates time period fluctuation through multiple warehouse storage, realizes external power homogenization by using gravity cooperation and guide plate structure, and effectively prevents arch blockage by double curvature discharge port design. The structure is simple and reliable.