30results about How to "Economical and reasonable" patented technology

The invention provides a filling-reclaiming method for building land in coal mining subsidence areas, which belongs to the technical field of mining and is used to solve the problem of developing and utilizing coal gangue. The invention adopts a technical scheme that the method is implemented according to the following steps: a, draining accumulated water in reclamation areas and clearing silt; b, striping and stockpiling surface soil; c, determining the thickness and density of coal gangue for hierarchical backfilling through a vibration pressure test; and d, performing hierarchical backfilling compaction on the coal gangue and soil. The method has the following main advantages that: 1, the ways of utilizing the coal gangue are expanded, and environmental pollution caused by stockpiling the coal gangue on ground is reduced; 2, the situation that building land is increasingly short is alleviated by reclaiming subsidence land to be the building land; and 3, the treatment for coal gangue for large-area hierarchical backfilling by a hierarchical vibration-compaction method is economical, reasonable and ideal in compaction effect, can improve the compactness and bearing capacity of coal gangue layers, and can prevent the spontaneous combustion or efflorescence of coal gangue foundations and the separation of harmful substances from polluting local environment because hierarchical compaction greatly reduces porosity and isolates air.

The invention discloses a kitchen waste recycling aerobic treatment system device, and particularly relates to the field of kitchen waste recycling. The kitchen waste recycling aerobic treatment system device comprises a waste treatment site and a treatment system device, the treatment system device is provided with a kitchen waste transport vehicle and a storage bin, and one side of the storage bin is provided with a manual sorting platform; and a first spiral conveyor is arranged between the storage bin and the manual sorting platform. Through transmission of a spiral reducing dehydration extruder, kitchen waste is subjected to crushing, spirally-reduced extrusion and dehydration, discharged oily water enters a full-automatic oil separator to be subjected to oil-water separation, solid residues are conveyed to a biochemical treatment machine through a second spiral conveying device to be subjected to high-temperature aerobic fermentation treatment, and before treatment, the salinity,grease and pH value of the kitchen waste do not need to be adjusted. The harmless requirement of kitchen waste treatment can be met, a treated degradation product can be directly changed into nutrient soil or deeply processed into organic fertilizer, and waste oil can be separated from the discharged wastewater or reprocessed into biodiesel.

The invention discloses a constant-temperature gas water heater which comprises a gas water heater body, a circulating pipeline connected to the gas water heater body and a circulating device mounted on the circulating pipeline. The constant-temperature gas water heater is characterized in that the circulating device comprises a forward circulating module and a backward circulating module, and fluid in the circulating pipeline is circulated forwards under the action of the forward circulating module or circulated backwards under the action of the backward circulating module. The forward circulating module and the backward circulating module are arranged on the circulating device, the circulating water flow direction in the circulating pipeline of the gas water heater can be controlled, and therefore the constant-temperature gas water heater is precisely controlled to be turned on and off; and the gas water heater runs economically and reasonably in the preheating process, it is ensured that the temperature of all sections of the circulating pipeline is even after preheating is completed, and the functional defects of overheating, supercooling, sudden temperature changes and the like of a traditional circulating device are overcome. The invention further discloses a constant-temperature control method.

A production technique for copper ammonia fiber looped fabrics is characterized in that blended yarns blended by copper ammonia fibers and cotton fibers and/or 100% of copper ammonia yarns are used as weaving yarns, and are woven to obtain grey fabrics, wherein the weaving yarns are refined before the weaving, or the grey fabrics are refined after the weaving; and then the grey fabrics are softened to prepare the copper ammonia fiber looped fabrics. The technique is simple, reliable and convenient to implement; and prepared copper ammonia looped products have the characteristics of freshness, amenity, health, comfort, humidity absorption, breathability, natural color, soft texture, good skin friendliness and the like.

The invention relates to a crank arm type aerial work vehicle hydraulic system. A rod cavity of a lower amplitude-variable oil cylinder of the crank arm type aerial work vehicle hydraulic system communicates with a rodless cavity of a medium amplitude-variable oil cylinder through a first two-way balance valve and a second two-way balance valve, and a communication oil path of the first two-way balance valve and the second two-way balance valve communicates with an oil inlet of an auxiliary synchronization valve; a first oil control port of the first two-way balance valve communicates with a rod cavity of the medium amplitude-variable oil cylinder through the second two-way balance valve, and a communication oil path of the first oil control port and the second two-way balance valve communicates with an oil outlet of the auxiliary synchronization valve; a second oil control port of the second two-way balance valve communicates with a rodless cavity of a lower amplitude-variable oil cylinder through the first two-way balance valve; and the auxiliary synchronization valve includes an overflow valve and a throttle valve which are connected in parallel. According to the crank arm typeaerial work vehicle hydraulic system, the auxiliary synchronization valve enables the lower amplitude-variable oil cylinder and the medium amplitude-variable oil cylinder to move at the same time, sothat the crank arm type aerial work vehicle hydraulic system is compact in layout and easy to maintain.

The invention relates to a wire drawing oil, and in particular relates to a high temperature resistant high speed wire drawing oil; the high temperature resistant high speed wire drawing oil comprises the following raw materials by weight: 2-3 parts of stearic acid, 10-12 parts of 2-octyldodecanol, 2-4 parts of trimethylolpropane, 60-80 parts of di-iso-octyl sebacate, 65-70 parts of hydrogenated polydecylene, 5-6 parts of hydrogenated castor oil, 5-8 parts of sulfurized cottonseed oil, 1-2 parts of fatty acid methyl ester, 0.2-0.5 part of octyl isothiazolinone, 1-2 parts of butyl hydroxy anisd and 2-3 parts of an assistant; the high temperature resistant high speed wire drawing oil uses the di-iso-octyl sebacate and the hydrogenated polydecylene as base oil, by combination with the hydrogenated castor oil, sulfurized cottonseed oil, the trimethylolpropane and other additives, extreme pressure antiwear performance of the wire drawing oil can be greatly improved, the octyl isothiazolinone is a green bactericidal anti-corrosion compound, and makes the wire drawing oil more resistant to storage, the prepared wire drawing oil is particularly prominent in thermal stability, and is especially suitable for high speed wire drawing and drawing process needs.

The invention discloses a channeling design method for reservoir capacity recovery in front of a high floodland and deep-cut channel reservoir dam, and belongs to the technical field of water conservancy project desilting. Due to the fact that a natural main channel and a floodland exist on the upstream of the dam, the high position of the floodland at the drought period is exposed above the riversurface, and channeling construction operations can be executed with small-sized equipment; then water is led into the channel before the floor season of the river, and floodland silt outside the channel is made to collapse; and finally the reservoir water level is lowered to discharge the silt, and thus the reservoir capacity in front of the dam can be recovered. By adoption of the method, the wet soil boundary in the critical state is subjected to stability against sliding checking calculation, the designed channeling depth is determined, and the optimal excavation gradient inside the channel is calculated through the starting speed of the silt. By means of the method disclosed by the invention, the design and construction scheme is simple, no large-sized hoisting equipment and carryingequipment are required, and the cost is low and reasonable; and moreover, the water level fluctuation law is ingeniously utilized, natural scouring and collapsing happen to soil bodies, time and labor are saved, the sand-contained water flow concentration inside the dug channel is high during desilting, the desilting effect is good and the channeling design method is suitable for small-sized heavily silt-carrying river tributaries and large-and-medium-sized heavily silt-carrying river main streams.

The invention relates to a glycosylated hemoglobin/blood sugar integrated detection bigeminy strip. The glycosylated hemoglobin/blood sugar integrated detection bigeminy strip comprises a sample area and a reaction area, and is characterized in that two indices share the single sample area; the reaction area comprises two different detection windows; the two indices, namely glycosylated hemoglobin and blood sugar, can be detected simultaneously; the sample area where the blood sugar is detected by a dry chemical method is located in the same position as the reaction area; the reaction area where the glycosylated hemoglobin is detected by a dry immunofluorescence technique is 0.5 cm away from the sample area. The different reaction areas contain different reagent pads to independently react with corresponding ingredients in blood respectively. The synchronous detection can be achieved only by quantitatively dropping a blood sample (whole blood) of a detected person into the sample area, and the strip is very applicable to medical institutions or individuals. The strip can simultaneously detect the two very important blood sugar monitoring indices, help a patient to find a problem at any moment and reflect the blood sugar control level of the patient within a time period, and is very important for preventing, treating and controlling complications of diabetes mellitus.

The invention provides an accurate control method for multi-valve multi-mode adjustment. The method comprises the steps of setting a target temperature TSV; collecting the water outlet temperature TAV; comparing the water outlet temperature TAV with the target temperature TSV to obtain a comparison result; forming an execution instruction according to the comparison result; and receiving the execution instruction by each valve and completing the action corresponding to the execution instruction. The method has the beneficial effects that a plurality of valve loops are independent of one another, the same-direction synchronous action, the same-direction asynchronous action, the different-direction synchronous action or the different-direction asynchronous action is comprehensively executed, multiple modes are achieved, the feedback quantity of the water outlet temperature is introduced, the hysteresis of a heating system can be treated, finally, the target value can be controlled very accurately and timely, a controlled system can be more stable, the system load fluctuation is small, and the system operation is more economical and reasonable.

Disclosed is an automatic switching device for intelligently controlling multiple transformers. The automatic switching device is applicable to power supply networks of large and medium factories, capacity of a controlled system is preset to be 10MW, and primary side voltage of the transformers is 10kV. A chip 80C51, developed and produced by Intel Company, in a single chip microcomputer in a MSC-51 series is selected for a control unit of the automatic switching device, and novel setting of hardware, a clock program and a keyboard program is adopted.

The invention provides a preparation method of nano TiO2 photocatalyst particles. The method comprises the following steps: (1) neutralizing precipitation process; (2) dispersion process; (3) oxidative transformation process; (4) curing process. The method not only solves the problem of easy aggregation of the nano TiO2 photocatalyst particles, enables the product particle sizes to be small, enables the average particle size to be less than 30nm and enables the product to be higher in concentration, but also has a good formaldehyde degradation function under the condition of visible light and overcomes the defect that the traditional photocatalyst works only under the condition of ultraviolet light, thus being wider in application scope. The preparation method does not need high-temperature calcination or water-bath heating, is low in requirements for equipment, simple in technological process and easy to operate and control; furthermore, the preparation method can use general industrial grade raw materials, thus being economical and reasonable in cost; therefore, the method has very high market competitiveness and is easy in realization of large-scale industrialization.

The invention discloses a mixed sewage short-range treatment system, which comprises a regulating pool, a reaction tank, a sludge tank and a clean water pool. A liquid inlet of the regulating pool isconnected with a to-be-treated sewage pipeline which includes filter press manufacturing electro-welding workshop sewage and complete machine water pressure testing workshop sewage, and a liquid outlet of the regulating pool is connected with a liquid inlet of the reaction tank. An agent inlet of the reaction tank is used for adding agents including waste acids, quick lime and nonionic polyacrylamide, a sludge outlet of the reaction tank is connected with the sludge tank, and a clean water outlet of the reaction tank is connected with the clean water pool. The invention further discloses a mixed sewage short-range treatment method. The system and the method have advantages that mixed sewage of a filter press manufacturing electro-welding workshop sewage and a complete machine water pressure testing workshop can be treated at the same time, only a few types of added agents including waste acids, calcium oxide and NPAM are required, low agent feeding quantity is realized, and treated clean water can be recycled; in addition, due to use of the waste acids, waste recycling is realized.

The invention provides a mechanical oil stain cleaning agent and a preparation method thereof. The cleaning agent comprises the following components in parts by weight: 13 to 16 parts of magnesium sulfate, 10 to 13 parts of calcium hydroxide, 5 to 8 parts of sodium metasilicate pentahydrate, 1 to 4 parts of thiocyanate, 25 to 28 parts of calcium carbonate, 20 to 23 parts of sodium nitrite, 22 to 25 parts of hydrogen-containing silicone oil, 11 to 14 parts of an antioxidant, 1 to 2 parts of graphite powder, 11 to 14 parts of normal propyl alcohol, 2 to 3 parts of melamine cyanurate acid, 1 to 4parts of montmorillonite, 1 to 2 parts of benzoyl peroxide, 5 to 8 parts of a lubricant, and 100 parts of deionized water. Compared with the prior art, the cleaning agent is simple in preparation method, economical and reasonable in cost, fragrant in taste, poisonless and harmless, rapid in decontamination and excellent in cleaning effect.

The invention discloses a processing and preparing method of pot rice, which comprises a method for processing and preparing potato rice with a pot and a method for processing and preparing buckwheat rice with a pot, and solves the problems of poor quality, poor taste and the like of the prepared rice with a pot by generally adopting a mode of raising temperature and adding edible oil in the prior art. According to the processing and preparing method of the rice with pot, the prepared rice with pot is good in taste, fragrant and crisp, capable of tonifying the spleen and nourishing the stomach and good in effect on people with inappetence. The potato and buckwheat rice with pot is economical and reasonable in raw material cost and simple in preparation method, and is suggested to be popularized and used.

The invention discloses a safe power supply intelligent device, which comprises a remote management platform, a data processing center, a mobile data service and an information monitoring end, wherein the data processing center is connected with the information monitoring end through the mobile data service, and the data processing center and the remote management platform realize information sharing through a network, by adopting the system modules, fire accidents caused in the field of safe electricity utilization in cities can be controlled in advance through intelligent application of the Internet of Things, cloud computing and big data analysis, fire accidents caused by electricity are completely eradicated, conversion from civil air defense to technical defense is truly achieved, a user can directly know the on-site electricity utilization condition through a mobile phone APP in the normal working electricity utilization process, visualization, digitization and intelligentization are achieved, and effective safety and insurance guarantee are provided for the body and property of the user. The system module adopted by the invention is economical and reasonable in cost, high in practicability and suggested to be popularized and used.