4results about How to "Solve the waste problem" patented technology

The invention provides a preparation method of alkyl salicylic acid and calcium alkyl salicylate, the alkyl salicylic acid is a compound with a structural formula as shown in a formula I: # imgabs0 #, and R is straight-chain or branched-chain alkyl with the carbon atom number of 4-10. The alpha-olefin dimer used in the invention is an alpha-olefin oligomer waste material generated when metallocene catalyzes alpha-olefin to produce poly-alpha-olefin (PAO), so that the problem of waste materials in the PAO production process is solved; the yield of the alkyl salicylic acid prepared by the method is 96% or above; the calcium alkyl salicylate prepared by the method provided by the invention has high base number, excellent high-temperature detergency and oxidation resistance, and is suitable for being used as a detergent in a lubricating oil composition.

The utility model discloses a waste discharge mechanism, which comprises a main conveying device, a second conveying device, a third conveying device, a fourth conveying device, a fifth conveying device and a sixth conveying device, the secondary conveying device is provided with a second starting end and a second ending end which are used for conveying the pole piece, and the second starting end of the secondary conveying device is aligned with the first ending end of the primary conveying device; the waste collecting device is located below the joint of the main conveying device and the secondary conveying device; and the lifting mechanism is in driving connection with the secondary conveying device, and the second starting end of the secondary conveying device is separated from the first ending end of the primary conveying device, so that the pole pieces fall into the waste collecting device. The utility model can solve the problem of waste discharge cost, can realize continuous waste discharge, and is convenient to operate.

The utility model discloses a kind of underground station pile wall composite structures, including underground station structure and the foundation pit enclosure stake of being set in the outer side of underground station structure, the sidewall bottom joist of being equipped with in the lower side of underground station structure two sides, transverse reserved reinforcement is equipped in the foundation pit enclosure stake, first connection reinforcement is correspondingly equipped in the sidewall bottom joist, and the foundation pit enclosure stake is close to the side of underground station structure and is equipped with the reinforcement connection component for the transverse reserved reinforcement and the first connection reinforcement connection. The utility model analysis foundation pit enclosure stake base is used as the composite structure of underground station pile foundation, realizes enclosure foundation pit engineering and underground station structure intensive sharing, solves later period enclosure stake waste problem, effectively improves resource utilization efficiency, simultaneously reduces underground station structure outer wall thickness and reinforcement, saves engineering investment.

This invention discloses an indoor temperature and humidity control method, device, equipment, and medium, relating to the field of building environment control technology. The method includes: acquiring indoor and outdoor environmental data, equipment operating status data of multiple environmental control actuators, and real-time power grid data; extracting operating condition features based on the indoor and outdoor environmental data to identify target disturbance patterns; employing a two-layer prediction model, combining equipment operating status data to jointly predict indoor temperature and humidity parameters including absolute moisture content, and combining historical error data to perform online rolling correction of model parameters, obtaining prediction results including surface condensation risk parameters; constructing a multi-objective optimization function including comfort, energy consumption, condensation and mildew prevention determined based on condensation risk parameters, and peak power constraints based on real-time power grid data, and matching priority switching rules; using these rules and the optimization function to iteratively solve the prediction results to generate a hierarchical control strategy, enabling collaborative decoupling control of multiple environmental control actuators.