7results about How to "Reduce deforestation" patented technology

The invention discloses an optimization method and system for photovoltaic panel site selection and inclination angle selection of mountain terrain, and relates to the field of photovoltaic power generation, and the method comprises the steps: collecting terrain data and tree data, and constructing a three-dimensional terrain model and a three-dimensional tree model; acquiring astronomical data in a mountain terrain area to which the photovoltaic panel belongs, performing sun trajectory simulation, and performing shadow calculation based on the constructed three-dimensional terrain model and the three-dimensional tree model and a simulated sun trajectory curve; and evaluating a shadow distribution map obtained by shadow calculation, determining a photovoltaic panel site selection and an inclination angle adjustment angle, and outputting a result through a visualization system. According to the method, the three-dimensional terrain model and the three-dimensional tree model are constructed, the sun trajectory simulation is carried out, shadow calculation is carried out based on the constructed model and the simulated sun trajectory curve, the shadow distribution map obtained through shadow calculation is evaluated, the installation position and site selection of the photovoltaic panel are optimized, and the power generation efficiency is improved. And unnecessary land leveling and tree felling are reduced, and the construction cost is reduced.

The invention relates to the technical field of papermaking, in particular to a papermaking system surface charge control method, which comprises the following steps: improving PCD (Poly Crystal Diamond) of chemi-mechanical pulp by increasing the torque of a squeezing screw, improving the cleanliness of the chemi-mechanical pulp, feeding the chemi-mechanical pulp with high PCD into a chemi-mechanical pulp storage tower for later use according to a normal process flow, and preparing cationic agents with different solid contents at a wet end for switching use; the mesh concentration is adjusted by adjusting the opening degree of a vertical lip plate in the core layer headbox, so that the uniformity is improved; finally, the formed wet paper web is fed into a pressing part; and the squeezed paper is subjected to pre-drying, sizing, post-repair drying, hard calendaring, coating, soft calendaring and curling. Charges are effectively improved, and slurry and cost are saved; the end breaking time of paper sheets is shortened, the use amount of chemicals is effectively reduced, paper products are more uniform, needle leaf planting and felling can be reduced, and sustainable development of resources is promoted; the chemical dosage is reduced, and the wastewater treatment difficulty of a sewage plant is reduced.

The utility model discloses a composite board made of bagasse, and relates to the technical field of composite board preparation, the composite board comprises a foundation board, a plurality of mounting grooves are formed in the foundation board, reinforcing strips are mounted in the mounting grooves in a matched mode, the mounting grooves are machined through a grooving mechanism, and the grooving mechanism comprises a rack, a plurality of clamping mechanisms and a plurality of clamping mechanisms; the pressing wheels are used for machining the mounting grooves; the driving mechanism is mounted on the rack, and a plurality of pressing wheels are arranged at the lower end of the driving mechanism at intervals; the conveying mechanism is arranged at the lower end of the rack, the conveying mechanism is used for conveying the foundation plate, and a protective outer plate or a waterproof plate layer is arranged on the outer side of the foundation plate. Bagasse is used as a composite plate raw material, so that the problem of subsequent treatment of the bagasse is solved, wood can be replaced to meet the use requirement, and the service life of the bagasse is prolonged. Therefore, the production cost is reduced, the economic benefit is improved, and in addition, the prepared composite board is good in compressive strength.

The invention provides a paper product, papermaking pulp, papermaking filler and a preparation method thereof. The preparation method comprises the following steps: adding a filler into a galactomannan solution to form a first solution; and adding a high-molecular polymer into the first solution to form a papermaking filler solution. According to the preparation method of the papermaking filler solution provided by the embodiment of the invention, the galactomannan and the high-molecular polymer are used for synergistically treating the filler, so that the influence of the filler on the combination of cellulose fibers can be reduced, and the filler dosage is increased on the premise of ensuring the paper forming strength and retention / dehydration, so that the fiber dosage is saved, and the production cost is reduced. The total production cost per ton of paper is reduced; the use of the filler is increased, the use of fiber raw materials can be reduced, wood felling is reduced, carbon emission is reduced, environmental protection is facilitated, and natural products used in the preparation method in the embodiment of the invention are beneficial to environmental protection.

The invention discloses a preparation method of a mulberry twig composite phase change material capable of realizing a self-regulation heat management function, and belongs to the technical field of agricultural waste-based composite phase change materials. The invention aims to solve the problem that an existing wood-based material as a supporting structure of a phase change material is weak in heat storage and release capacity. The method comprises the following steps: 1, preparing a porous fiber skeleton; and 2, preparing the phase change material. The preparation method is used for preparing the mulberry twig composite phase change material with the self-adjusting heat management function.

The application provides an overhead transmission line path optimization method, device, equipment and storage medium, and relates to the technical field of power systems. The method comprises the following steps: acquiring GIS data and three-dimensional point cloud data of a target area, and respectively preprocessing the GIS data and the three-dimensional point cloud data; performing spatial fusion and attribute fusion on the preprocessed GIS data and the preprocessed three-dimensional point cloud data to obtain a fusion database; based on the fusion database and a preset constraint condition, a multi-objective path optimization model is established, and the multi-objectives include minimum demolition amount, minimum tree felling amount, optimal slope stability and minimum number of line corner; and a preset optimization algorithm is used to solve the multi-objective path optimization model to obtain a path optimization scheme of the overhead transmission line, which can realize comprehensive balance among multiple design requirements, thereby better meeting actual engineering requirements in terms of efficiency, accuracy, data integration and multi-objective cooperation.

This invention relates to the field of power transmission line operation and maintenance technology, and discloses a method for predicting the clearance range of transmission line corridors by integrating tree species knowledge graphs. The method includes the following steps: collecting point cloud data and multi-source data from meteorology, vegetation mechanisms, and electrical environment; performing time-series alignment, completion, and distortion removal preprocessing; constructing a tree species knowledge graph and a tree proxy model, outputting growth and risk prediction parameters; accurately extracting tree obstacle point clouds and matching tree species through an attention mechanism; calculating corrected safety distances and establishing a multi-dimensional hazard classification system; combining meteorological data to correct growth parameters, predicting future risks, dynamically delineating the clearance range, adjusting inspection cycles, and visualizing the results. This invention significantly improves prediction accuracy, overcomes the shortcomings of traditional inspections, saves annual operation and maintenance costs, reduces tripping losses, achieves precise control and mode transformation, considers multiple benefits, has strong adaptability, and broad prospects for promotion.