Abstract: A transaction harmony degree-based method and system for transaction matching between a power grid and building energy. The method includes: obtaining a transaction harmony degree of a historical transaction cycle; sending, by using a blockchain, the transaction harmony degree to a corresponding building energy user, and sending a maximum compensated electricity price and an expected compensated electricity price in peak-valley regulation to all building energy users; determining, by each building energy user, a transaction-based compensated electricity price in the peak-valley regulation based on the received transaction harmony degree and the received maximum compensated electricity price and expected compensated electricity price in the peak-valley regulation, and feeding back the transaction-based compensated electricity price in the peak-valley regulation to a power grid; and determining, by the power grid, a building energy user that successfully performs transaction matching with the power grid.

Abstract: A vaporizer includes: a vaporization shell; a vaporization assembly; and a protective assembly. The vaporization shell includes a liquid storage cavity. The vaporization assembly is arranged in the vaporization shell and has a heating structure and a liquid flowing channel, the liquid flowing channel being in communication with the heating structure so as to allow a vaporizable liquid medium in the liquid storage cavity to be outputted to the heating structure. The protective assembly is linked with the vaporization shell, the protective assembly being driven by rotating the vaporization shell to regulate an amount of a flowing liquid outputted from the liquid storage cavity to the liquid flowing channel, an amount of air entering the vaporization assembly, and on/off of a circuit between the vaporization assembly and a power supply assembly of an electronic vaporization device.

Abstract: A vaporizer is disclosed. The vaporizer includes a liquid storage housing having a liquid storage cavity formed therein and a base arranged at one end of the liquid storage housing. The base includes an air inlet protruding stage that has an upper surface facing the liquid storage cavity. The upper surface is in a shape of a protrusion. The air inlet protruding stage is provided with a plurality of air inlet holes extending from the upper surface away from the liquid storage cavity.

Abstract: The present disclosure relates to an atomizer and an electronic atomizing device. The atomizer is provided with an atomizing cavity, and includes: an atomizing core configured to atomize an aerosol generating substrate to form an aerosol; a base provided with an air inlet; and a sealing member disposed on the base, and having an upper surface facing the atomizing core. The sealing member includes a raised platform connected to the upper surface and protruding opposite to the upper surface. The raised platform is provided with an orifice channeling air flow around the atomizing cavity and the air inlet. The raised platform has an inclined surface located outside the orifice and facing the atomizing core. In a direction away from the orifice, a distance between the inclined surface and the upper surface gradually decreases.

Abstract: A method for extracting copper, including: 1) inputting a copper cinder into a ball grinder to grind, screening, transferring resulting coarse grains to a first magnetic separator to yield a copper concentrate I and magnetic minerals, and returning the magnetic minerals to the ball grinder; 2) transferring resulting fine grains from the screening to a classifier to yield a deposited sand and an overflowing slurry, returning the deposited sand to the ball grinder, transferring the overflowing slurry to a flotation unit to yield a copper concentrate II and a gangue; 3) transferring the gangue to a second magnetic separator to separate a non-magnetic mineral from a magnetic mineral, transferring the non-magnetic mineral to a gravity concentrator to get a semi-qualified product, and transferring the semi-qualified product to a table concentrator to yield a copper concentration III; 4) discharging the gangue and the magnetic mineral.