3results about How to "No entry" patented technology

The utility model discloses a built-in heating type dryer and an automobile air supply unit, which comprise a shell, the interior of the shell is filled with a drying agent, the shell is provided with an air inlet and an air outlet, the shell is also provided with a built-in heating assembly inserted into the drying agent, and the air inlet and the air outlet are communicated with the built-in heating assembly. A heat dissipation component installed outside the built-in heating assembly is arranged in the drying agent, the heat dissipation component makes full contact with the drying agent, the drying agent in the shell can be fully heated by arranging the built-in heating assembly and the heat dissipation component, heat is dissipated into the drying agent through the heat dissipation component, particles of the drying agent are heated, and the drying effect is improved. Water absorbed by the drying agent particles is separated from the particles due to high temperature and is discharged out of the system through gas circulation, permanent reuse of the drying agent is achieved, and the regeneration effect is good.

The present invention discloses a dust-proof device for the side bearings of railway freight cars. The device includes: an adjusting shim and a wear plate at the lower end of the upper side bearing body assembly, and an upper mounting seat is clamped between the adjusting shim and the wear plate; a lower mounting seat having the same shape as the bottom end face of the lower side bearing body assembly is movably installed between the lower side bearing body assembly and the bolster; a dust-proof cover is connected between the upper mounting seat and the lower mounting seat, and the upper interface of the dust-proof cover is clamped in the slot of the upper mounting seat, and the lower interface is clamped in the slot of the lower mounting seat; the dust-proof cover has a variable cross-section structure from top to bottom, and a variable cross-section telescopic corrugated structure is provided in the middle and lower parts of the dust-proof cover; when vertical or longitudinal displacement occurs between the upper side bearing body assembly and the lower side bearing body assembly, the telescopic corrugated structure can shrink or expand with the deformation. The dust-proof device of the present invention has no sand and dust entering inside, and can avoid the wear and corrosion of the internal components of the upper and lower side bearing structures caused by sand and dust to the greatest extent.

The utility model relates to the field of sulfuric acid production, especially relates to a battery sulfuric acid production line, including diluter, carry out secondary mixing with desalted water after mixing concentrated sulfuric acid and battery sulfuric acid once, and output, cooler, its pipe course entrance connects the outlet of diluter, its pipe course export connects battery sulfuric acid storage tank with battery sulfuric acid inlet of diluter, its shell course is connected with cooling water. The utility model solves the problem that the graphite diluter is used in the existing battery sulfuric acid production process, and the graphite and sealing material are corroded by sulfuric acid and enter the sulfuric acid due to the nature and structure of the diluter, which affects the quality of the acid. At the same time, the traditional battery sulfuric acid production process adopts manual operation, which is complicated and not conducive to saving manpower and reducing labor cost.