4results about How to "Reduce equipment input costs" patented technology

The invention discloses a synthesis process of a thermosensitive color developing agent 3, 3 '-benzenesulfonyloxy diphenyl urea, and belongs to the technical field of organic synthesis. According to the process, m-aminophenol, benzene sulfonyl chloride and triphosgene are used as raw materials, 1, 2-dichloroethane is used as a solvent, triethylamine is used as an acid-binding agent, a one-pot method is adopted to construct a two-step continuous reaction through sulfonylation and urea bonds, then acidification, liquid separation, extraction, spin-drying and methanol crystallization are performed to obtain a target product, and no intermediate needs to be separated in the whole process. According to the invention, parameters such as reaction temperature and feed ratio are optimized, the problems of tedious preparation process and low yield in the prior art are solved, the reaction condition is mild, the operation is convenient, the raw material is a conventional analytically pure reagent, the product yield is 72-76%, the purity is greater than 99.5%, the raw material utilization rate is high, the industrial application prospect is good, and the product can be widely used as a thermosensitive color developing agent.

This invention discloses a lithium-sodium hybrid ion battery and battery pack. The lithium-sodium hybrid ion battery includes: a positive electrode, a negative electrode, an electrolyte, and a lithium-ion exchanger. The positive electrode contains a sodium-ion positive electrode material; the negative electrode contains a lithium-ion negative electrode material; the electrolyte is a lithium-ion battery electrolyte; the lithium-ion exchanger is disposed on or in at least one of the positive electrode, the negative electrode, and the separator, and is used to replenish lithium ions in the electrolyte during battery charging and discharging. By incorporating a lithium-ion exchanger to replenish lithium ions in the electrolyte during charging and discharging, the lithium intercalation capacity of the negative electrode and the overall capacity of the cell are improved, solving the problem that the actual capacity of commercial lithium-sodium hybrid ion batteries is far lower than the design value due to insufficient lithium-ion supply in the electrolyte.

This utility model relates to the field of steel metallurgical equipment technology, specifically disclosing a precise control device for the stroke of a hydraulic shear in a billet continuous casting machine. It includes a limiting component located on the upper shear blade seat and a triggering component located on the lower shear blade seat. The limiting component includes a first fixed plate, a limiting body, and a contact head. The first fixed plate is fixedly connected to the upper shear blade seat, the limiting body is mounted on the fixed plate and has an internal mounting cavity, and the contact head is slidably located within the mounting cavity and connected to the hydraulic shear control circuit via an electrical wire. This 45° suspended hydraulic shear limiting device has a simple structure, low cost, and is easy to manufacture. It can operate stably in harsh environments. The contact head relies on self-realignment to ensure reliable signal transmission and effectively avoids fatigue fracture of the piston rod fixing bolts caused by excessive shear stroke of the hydraulic cylinder, extending the service life of the hydraulic cylinder, reducing the frequency of spare parts replacement, saving costs, and reducing the labor intensity of employees.

This utility model belongs to the technical field of spherical product processing equipment, specifically relating to an integrated cooling and drying device for spherical products. It includes a first feed pipe, a second feed pipe, a first fan, and a second fan. The first feed pipe is connected to a cooler, which contains a conical cooling tower and multiple fixed columns. The conical cooling tower consists of multiple baffles, a cone, and a base. Multiple ventilation openings are provided on the cone, and a central hole and multiple edge holes are provided on the base. The central hole is connected to the first fan pipe, and the multiple edge holes are connected to the multiple fixed columns one-to-one. The lower end of a distribution pipe is connected to a lower drying chamber, the upper drying chamber is connected to a second feed pipe, and the lower drying chamber is connected to a second discharge chamber. This utility model achieves integrated cooling and drying of spherical products, significantly improving production efficiency while reducing equipment footprint and lowering the company's infrastructure and equipment investment costs.