Abstract: A chemical regeneration method of water glass used sand, which belongs to the field of resource recycling in the casting industry. The present invention adopts a two-component reagent composed of calcium oxide and tap water, an emulsion composed of sucrose and calcium oxide, and a calcium chloride aqueous solution to process the regeneration of the used sand, and prepares the sample of the reclaimed sand obtained after the reagent mixed with the used sand is sealed and placed for 0 to 24 hours respectively, and tests the properties of the sample including: initial strength, final strength and collapsibility, and sodium carbonate content, and compares the properties of raw sand and used sand after the tests. Among several regeneration methods, each property index of the reclaimed sand obtained by using calcium oxide and tap water to regenerate for 12 hours is the best.

Abstract: A chemical regeneration method of water glass used sand is provided in the present disclosure, which belongs to the field of resource recycling in the casting industry. The present disclosure adopts a two-component reagent composed of calcium oxide and tap water, emulsion composed of sucrose and calcium oxide, and calcium chloride aqueous solution to process the regeneration of the used sand, and prepares the sample of the reclaimed sand obtained after the reagent mixed with the used sand is sealed and placed for 0 to 24 hours respectively, and tests the properties of the sample including: initial strength, final strength and collapsibility, and sodium carbonate content, and compares the properties of raw sand and used sand after the tests. Among several regeneration methods, each property index of the reclaimed sand obtained by using calcium oxide and tap water to regenerate for 12 hours is the best.

Abstract: The present invention discloses a solar cell box for color lights, and aims at providing a solar cell box for color lights with high structural rationality, simple structure and good waterproof effect. Key points of the technical solution of the present invention are as follows: by separating a mounting area of a solar charging panel from a mounting area of cells, the assembling thickness can be effectively reduced, and the transportation expense can be controlled within a reasonable range, so that the transportation cost is reduced. A solar charging panel part is staggered to a lithium cell mounting part, so that the safety can also be improved accordingly, the practicability is high, and the structure is simple. The present invention is applicable to the technical field of power supply apparatuses for color lights.