10results about How to "Save land resources" patented technology

The invention discloses a mining area integrated energy system optimization scheduling method coupling gravity energy storage and CCUS-P2G. The method comprises the following steps: constructing a mining area integrated energy system architecture containing gravity energy storage and CCUS-P2G coupling; a vertical shaft type gravity energy storage device model is established, and mutual conversion between electric energy and gravitational potential energy is achieved through vertical displacement of a weight; establishing a CCUS-P2G coupling model, and synthesizing methane from carbon dioxide captured by a CCUS device and hydrogen generated by an electrolytic bath in the two-stage P2G in a methane reactor; a mixing gas turbine model is established, methane generated according to the CCUS-P2G coupling model is mixed with gas in coal bed gas in the mining area, and gas meeting the combustion concentration requirement of a gas turbine is obtained; a system optimization scheduling model considering a stepped carbon transaction mechanism is constructed, and solving is carried out on the premise that system power balance constraints are met by taking the minimum total cost of the system as an objective function. The defects that in the prior art, the utilization rate of mining area associated energy is low, waste mine resources are wasted, and a single energy system cannot give consideration to low carbon and economical efficiency at the same time are overcome to a certain extent.

The present application belongs to the technical field of plant induced regeneration, and particularly relates to a high-efficiency artificial propagation method of Dendrobium candidum, comprising the following steps: taking two-year-old stem segments with nodes as materials, cutting the stem segments into appropriate sizes, and disinfecting the stem segments; and culturing the stem segments in a culture medium A for 90 days, and then completing the proliferation and rooting integration through a direct organogenesis route. The present application realizes the cyclic production of Dendrobium candidum, and the whole culture process can be completed only by using one culture medium, greatly improving the artificial in-vitro propagation efficiency, and the proliferation coefficient is completely comparable to the seed asymbiotic germination method, and the problems of large offspring trait separation and different qualities caused by the seed asymbiotic germination are solved, and the quality and yield of seedlings are greatly improved. The present application can provide a brand-new technical support for the factory-scale growth of Dendrobium candidum, so as to achieve the purpose of cultivating seedlings with genetic stability and excellent quality to improve the artificial planting efficiency, and the cost is low, the cycle is short, and the quality and survival rate of seedlings are high.

This utility model relates to the field of design optimization technology for noise reduction frame foundations and circulating water pipe foundations in thermal power plants. It aims to solve the problem in existing technologies where, in thermal power plants, mechanical ventilation cooling towers, heavy-duty roads, and the main plant building are arranged adjacent to each other, and the space for circulating water pipes is limited due to land constraints. Furthermore, when these pipes are placed within the load-bearing area of ​​heavy-duty roads, the heavy vehicle loads can cause the circulating water pipes to buckle and deform, affecting their normal operation. The utility model provides a compact, combined arrangement structure for noise reduction frames and circulating water pipe foundations in thermal power plants. This structure includes a noise reduction frame arranged outside the mechanical ventilation cooling tower, a circulating water pipe arranged below the noise reduction frame, and a circulating water pipe foundation arranged below the circulating water pipe. A support frame is provided above the circulating water pipe foundation, and the circulating water pipe is arranged within the support frame and supported on the foundation. The noise reduction frame is located above the support frame and supported on it.

The invention discloses a cubilose fruit grafting seedling raising method, and belongs to the technical field of fruit tree cultivation. The method comprises six aspects of stock planting field establishment, stock seedling raising, stock water and fertilizer management, grafting, grafted seedling water and fertilizer management and grafted seedling field management. A special cutter tool for cubilose fruit grafting is adopted, an L-shaped section can be formed, the section is smooth and good in integrating degree, and the grafting survival rate and the grafting efficiency can be improved. According to the invention, the seedling raising grids are used for stock seedling raising, so that the seedling raising cost can be saved, and the space utilization rate can be improved. According to the method, the thorn-free huanglong and the argentodoxa cuneata are adopted as the stocks, the root systems are developed, the morbidity of root-knot nematodes can be reduced, the grafting survival rate and the growth vigor are improved, and meanwhile the canker resistance of plants is improved; the quality of the rootstock is guaranteed, the grafting growth vigor is improved, bud germination is promoted, and fruit bearing is carried out in advance by optimizing the length, the period and the number of bud points of the rootstock.

The invention discloses a method for preparing ceramsite by using tailings after iron extraction of red mud, which comprises the following steps: 1, separating elemental iron and tailings after iron extraction of red mud: after deep reduction of red mud, melting the red mud raw material at a high temperature of 1500-1700 DEG C, and separating liquid elemental iron and molten tailings; according to the method for preparing the ceramsite from the tailings obtained after iron extraction of the red mud, full-process resource utilization of the red mud from iron extraction to preparation of the ceramsite from the tailings is achieved, the traditional stacking or landfill treatment mode of the tailings obtained after iron extraction of the red mud is changed, a large number of land resources are saved, potential hazards to the environment are avoided, and the method is suitable for industrial production. According to the method, the tailings obtained after iron is extracted from the red mud are converted into ceramsite with economic value, so that the red mud is fully utilized, the pressure of solid waste on the environment is reduced, the comprehensive utilization rate of resources is improved, a benign resource circulation system is formed, and sustainable development is promoted.

The application discloses a parent-offspring identification primer group and method of Prunus. The parent-offspring identification primer group of Prunus disclosed by the application is composed of 30 single-stranded DNAs shown in sequence 1 to sequence 30 in a sequence list. The primer group and method of the application can identify the genetic relationship of Prunus armeniaca, Prunus dulcis and their offspring, establish a parent-offspring identification system, and are simple to operate. The primer group and method of the application can quickly obtain genetic information of Prunus parents and offspring and determine the source of the offspring, can early determine and retain hybrid offspring between Prunus armeniaca and Prunus dulcis at the seedling stage, which is beneficial to quickly determine the true outcrossing seedling at the seedling stage, thereby removing hybrid offspring caused by natural pollination and eliminating the hybrid offspring at the seedling stage, so as to save land resources, reduce the identification cost in the later period, speed up the breeding process, and also provide a reference for parent-offspring identification of other fruit plants.

The present application relates to the technical field of plant induced regeneration, and particularly relates to a high-efficiency artificial propagation method of jixiang grass, comprising the following steps: cutting the year-old stem with bud roots after sterilization treatment into about 0.5*0.5cm, and inoculating the stem with bud roots into culture medium A; cutting the stem with bud roots in the culture medium A to 1.5-2.0cm high with petiole, and transferring the stem with 3-4 leaf blades into culture medium B for culture for 60 days; cutting the cluster culture in the culture medium B into 1.0*1.0cm with 2-4 leaf blades reserved and cut to 1.5-2.0cm high, and transferring a single plant into culture medium C; when the test tube seedling is as high as 8-10cm, and the seedling is strong and thick, the test tube seedling is taken out and transferred into a substrate for culture, and the survival rate is 100% after 60 days. The present application realizes high-efficiency occurrence of the jixiang grass stem cluster buds, and the whole culture process can be completed only by two culture media except for the ex-plant starting culture, so that the artificial in-vitro propagation efficiency is greatly improved, the cost is low, the cycle is short, the seedling quality and survival rate are high, and technical support can be provided for factory scale growth.

This invention discloses a phosphate rock powder briquetting and roasting system and method. The system includes a batching subsystem, a roller pressing subsystem, a sieve distribution subsystem, a roasting and cooling subsystem, a finished product sieve molecular system, and a hot air circulation subsystem. This invention solves the problem of resource waste caused by the inability to reuse phosphate rock powder in existing phosphate rock processing, and the problem of land resource waste caused by the large-scale stockpiling of phosphate rock powder. It realizes the resource reuse of phosphate rock powder and greatly saves land resources. Simultaneously, the prepared lump ore product has high quality and strength, is convenient for subsequent transportation, and has strong transportability; the lump ore product has low moisture content and low carbonate content, effectively reducing the power consumption of subsequent lump ore phosphorus production and improving phosphorus purity.

The invention discloses a double-dehumidification selenium-rich sea salt preparation system based on a three-dimensional greenhouse, which comprises a pump room, a sedimentation tank, a filter tank, a flocculation tank, a disinfection tank, a three-dimensional greenhouse, a leaching area, a processing room, a selenium element adding area and a packaging room, seawater sequentially passes through the sedimentation tank, the filter tank and the flocculation tank to be subjected to multi-stage impurity removal and purification and then enters the disinfection tank to be disinfected, a primary evaporation tank, an intermediate evaporation tank and an advanced evaporation tank are arranged in the three-dimensional greenhouse, and salt blocks processed by the three-dimensional greenhouse enter the leaching area to be leached and then enter the processing room to be dried and smashed. Adding trace elements into the prepared fine salt in a selenium element adding area, and packaging in a subsequent packaging room. The selenium-rich sea salt preparation system is based on the three-dimensional greenhouse, the overall performance is stable and reliable, the salt preparation efficiency can be greatly improved, the selenium element dosage meeting the daily needs of the human body can be effectively added, and the selenium-rich sea salt preparation system has wide application prospects and huge economic value.

The application discloses a hydrogen-doped natural gas purifying hydrogen energy station by using a multistage membrane separation method, and belongs to the technical field of hydrogen purification. The hydrogen-doped natural gas purifying hydrogen energy station solves the problem that it is difficult to purify hydrogen-doped natural gas to obtain standard hydrogen gas required by a hydrogen fuel cell in the prior art. The multistage membrane separation method purifying system is connected with a town hydrogen-doped natural gas pipe network. The permeation side of the multistage membrane separation method purifying system is sequentially connected with a hydrogen gas compression unit, a hydrogen gas storage unit and a hydrogenation area. An intelligent control system comprises a controller and a visual screen. The controller is used for controlling the multistage membrane separation method purifying system, and the visual screen is used for displaying the operation condition of the hydrogen energy station. The hydrogen energy station can be applied to different pressure levels of hydrogen-doped natural gas pipes to extract hydrogen gas for gas supply and energy supply.