43results about How to "Unstable solution" patented technology

The invention relates to a mechanical self-leveling express delivery transporting trolley. The mechanical self-leveling express delivery transporting trolley comprises goods, an anti-skid pad, a sensor, a pressure bearing foam plate, an upper side buffering external spring, an upper side buffering internal spring, a lower side buffering external spring, a lower side buffering internal spring, an article carrying plate, a supporting plate, an upper conical hole, a lower conical hole, a conical rubber pad, a heavy hammer, a fastening bolt, an adjusting nut, a supporting frame, a supporting baffle and a transporting vehicle; the upper conical hole and the lower conical hole are formed in the upper and lower ends of the middle part of the supporting plate; the conical rubber pad is arranged inthe upper conical hole; the heavy hammer is arranged in the conical hole; the bottom end of the heavy hammer is welded to the article carrying plate; a fence is arranged at the upper end of the article carrying plate; the article carrying plate supports the fence in which the goods are placed; the sensor is arranged at the lower end of the article carrying plate; and the sensor can measure the weight of the goods and can judge whether the goods are at the center of the article carrying plate. The mechanical self-leveling express delivery transporting trolley has the advantages that mechanicalautomatic leveling of the transporting trolley is realized by using gravity direction effect of the heavy hammer, and therefore, the mechanical self-leveling express delivery transporting trolley issimple and efficient.

The invention relates to a deep water silt layer geological large-span multi-line reinforcing system and a jacking culvert construction method, and aims at providing a reinforcing system and a construction method for a high-water-level, long-jacking-stroke, large-span and high-tonnage jacking culvert to penetrate through multiple existing lines. The reinforcing system comprises a high-pressure jet grouting secant pile, a fender pile, an anti-traversing pile and a supporting pile. The jacking culvert construction method comprises the steps of starry well-point dewatering, foundation pit excavation and sliding plate fabrication, frame bridge prefabrication, line reinforcement, jacking equipment installation and process control. By adopting starry well-point dewatering, the problems of underground water burst and foundation instability during jacking are solved; since a frame bridge is integrally jacked after being prefabricated, the rigidity is high, the seismic performance is good and the influence by climate is smaller; compared with the traditional construction method, the reinforcement and the installation are convenient and easy to operate, the jacking speed is quick and the construction period is shortened; I-shaped steel, steel rails and sleepers used for engineering can be recycled; the overall economic benefits are remarkable, the practical value is greater and the application prospect is wide.

The present invention relates to gene engineering bacterial strain, and is especially one kind of soybean disease causing variety (P.syringae pv.Glycinea) of pseudomonas syringae for producing crown bacterin and its construction process. The gene engineering pseudomonas strain is prepared through mutagenizing initial pseudomonas strain with nitrosoguanidine for genetic mutation, so as to screen out pseudomonas strain with high crown bacterin yield. Experiment proves that the gene engineering pseudomonas strain of the present invention may be used in industrial production of crown bacterin through fermentation at 18deg.c to reach the yield of 84.7-112 mg / L.

The invention discloses a control system and a control method for a material bed of a circulating fluidized bed boiler, and belongs to the technical field of boiler and automatic control. The control system comprises a hearth pressure gauge, an air compartment pressure gauge, a material bed thermometer, a slag cooler slagging thermometer, a slag cooler water outlet thermometer, a slag cooler water inlet thermometer, a slag cooler drive motor, and a PLC control system. The hearth pressure gauge and the air compartment pressure gauge are connected to a material bed differential pressure transmitter, which transmits electrical signals to the PLC control system; the slag cooler slagging thermometer, the slag cooler water outlet thermometer and the slag cooler water inlet thermometer send electrical signals to the PLC control system; and the PLC control system sends electrical signals to a slag conveying device and the slag cooler drive motor. The invention is safe, reliable and convenient for operation, and can improve utilization efficiency of boiler slag waste heat and production efficiency, and realize automatic control of slagging and real-time monitor for boiler material bed, so as to reduce production cost and labor intensity of operator, and facilitate control of the slag cooler to recover waste heat from high temperature slag.