65results about How to "Achieve efficient utilization" patented technology

The invention relates to a method for processing inferior crude oil through combined processes, which comprises the following steps of: carrying out solvent deasphalting to an inferior crude heavy oil to obtain deasphalted oil; preheating the deasphalted oil, entering a first reaction zone of a catalytic conversion reactor, mixing either oil gas produced by the reaction or a spent catalyst with alightweight crude oil, entering a second reaction zone for a cracking reaction, a hydrogen transfer reaction and an isomerization reaction, separating solids and liquids, further separating the reaction products into dry gas, liquefied gas, gasoline, diesel and catalytic wax oil, and cycling the spent catalyst through steam stripping and regeneration, wherein the reaction conditions of the first reaction zone and the second reaction zone are sufficient to obtain the catalytic wax oil product occupying 12-60 wt% of the crude oil through the reactions; hydrogenating the catalytic wax oil to obtain hydrogenated catalytic wax oil, and introducing to the catalytic conversion reactor to further react to obtain a lightweight fuel oil product. The method provided by the invention can be used for furthest producing propylene and lightweight fuel oil especially high-octane petrol from inferior crude oil, and thus, the efficient utilization of oil resources is realized.

The invention discloses a brown coal drying method and device utilizing waste heat of smoke and steam of a power plant. The drying method comprises two-time drying treatment, wherein the two-time drying treatment comprises the steps that firstly, the high-temperature smoke directly discharged by a power plant coal fired boiler is utilized for conducting first-time drying treatment on damp materials, the high-temperature smoke directly makes uniform contact with the damp materials, and intermediate materials are obtained; and secondly, the high-temperature smoke and the high-temperature steam directly discharged by the power plant coal fired boiler are utilized for conducting second-time drying treatment on the intermediate materials at the same time, the high-temperature smoke directly makes uniform contact with the intermediate materials, meanwhile, the intermediate materials make uniform contact with a heat exchange pipe inflated with the steam for heat exchange, dried materials are obtained, and second-time drying treatment is achieved. The brown coal drying method and device have the beneficial effects that the power plant waste heat serves as a heat source for brown coal drying, the running economical efficiency of a power plant generator set is improved, a system for drying the brown coal and a brown coal power generation system are integrated, efficient utilization of power plant energy and optimization of a technology system are achieved, and the brown coal drying method and device belong to the poly-generation technology of the power plant.

An axial and radial cross flow moving bed adsorption reactor and an activated coke flue gas desulfurization and denitration technology thereof are used for realizing the purposes that SO2, NOx, mercury, dioxin and other pollutants in flue gas are unitedly removed and integrally purified in an adsorption reactor, and belong to the technical field of comprehensive waste flue gas treatment. The adsorption reactor is a combined type double-section double-inverse U-type axial and radial cross flow moving bed, awherein desulfurization area is arranged at a lower section of the axial and radial cross flow moving bed, an annular internal activated coke particle layer and an annular external activated coke particle layer are arranged, and the desulfurization area is divided into a coarse desulfurization area and a fine desulfurization area; a denitration area is arranged at an upper section of the axial and radial cross flow moving bed, and an activated coke particle layer is arranged; an ammonia spray pipe is arranged between the upper section and the lower section; and flue gas is filled along a double-port counter annular gas flow channel structure, the flue gas of the lower section centripetally flows to be desulfurized, and the flue gas of the upper section centrifugally flows to be denitrated. According to the reactor and the technology, desulfurization and denitration are realized in one adsorption reactor, so the adsorption reactor has the advantages of efficient utilization of activated coke, uniform flue gas mixing, sufficient gas-solid contact, stability and reliability in operation, operation cost saving and the like.

The invention discloses a planting method of jute in heavy-metal contaminated soil. The method comprises the following steps of: A, preparing soil and building a field, and applying passivator to reduce activity of heavy metal in the soil; B, selecting a specific jute variety with strong heavy metal contamination resistance, sowing in an enough amount at proper time to guarantee full seedlings; C, determining appropriate close planting, thinning / finally singlings in good time, and reserving enough basic seedlings; and D, intertilling / weeding in time, rationally topdressing / irrigating to culture effective strong plants; E, reinforcing prevention and control of diseases and insect pests to realize high yield of jute. By the jute planting method, the average yields of raw stems in light, medium and heavy contaminated jute fields are respectively 181.0+ / -16.4, 174.9+ / -15.7 and 158.5+ / -15.3kg / mu, which reaches the high-yield level of the jute growing area in South China; and the content of heavy metal in raw jute can be controlled in a range of related standard limit, so that agricultural safety and effective utilization of heavy metal contaminated soil can be realized. The method is simple in technology and practical, and has wide application prospect in broad heavy metal contaminated areas.

The invention discloses a method for producing ethanol by high-efficiency simultaneous saccharification and cofermentation, which comprises the following steps: pretreating; concentrating and detoxifying; preparing yeast seed solution; performing simultaneous saccharification and cofermentation; and distilling / rectifying. When the method provided by the invention is used, the inhibition action of a monosaccharide component formed by hydrolysis of cellulose on cellulose is relieved, the enzymolysis saccharification efficiency and fermentation yield are improved, the recovery rate of hemicelluloses in bagasse is about 60 percent, the cellulose recovery rate is about 86 percent, and the total ethanol yield of dry bagasse can reach about 20 percent.

The invention discloses a planting method of flax in heavy-metal contaminated soil. The method comprises the following steps of: A, preparing soil and building a field, and applying passivator to reduce activity of heavy metal in the soil; B, selecting a specific flax variety with strong heavy metal contamination resistance, sowing in enough amount at proper time to guarantee full seedlings; C, rationally and closely planting, intertilling / weeding / topdressing in time to culture effective robust plants; and D, reinforcing prevention and control of diseases and insect pests, harvesting at proper time, and drying in the sun and storing appropriately. By the flax planting method, the average yields of raw stems in light, medium and heavy contaminated soil is respectively 308.2+ / -29.0, 283.2+ / -30.3 and 254.7+ / -28.6kg / mu, which reaches the high-yield level of the flax growing areas in South China; and the content of heavy metal in raw stem coarse fiber can be controlled in a range of related standard limit, so that agricultural safety and effective utilization of heavy metal contaminated soil can be realized. The method is simple in technology and practical, and has wide application prospect in broad heavy metal contaminated areas.

The invention discloses a method for planting ramie in soil seriously contaminated by heavy metal. The method comprises the following steps: A, selecting a specific variety of ramie with high resistance against heavy metal contamination and cultivating strong ramie seedlings by using a young shoot cottage propagation technique; B, constructing a ramie garden and applying a passivator to reduce the activity of heavy metal in the soil; C, transplanting in right time and carrying out rational close planting; D, scientifically carrying out cross dressing and cracking stems in right time; and E, preventing and controlling insect disease prevention in time and strengthening winter cultivation management of the garden. Practical results show that the yields of the newly planted ramie garden in the current year and the next year are respectively 71.8-74.3kg / mu and 84.8-86.3kg / mu, which are basically the same as those of the newly planted ramie garden with clean soil at the same term; moreover, the content of heavy metal in the raw ramie garden can be controlled in a range specified in related standard, and the safe and efficient agricultural utilization of soil seriously contaminated by heavy metal is implemented. The method is simple and convenient in technique and easy to implement and can be popularized to and applied by mass farmers and departments of agricultural technology in areas with serious heavy metal contamination.

The invention discloses an oilseed rape and wheat stubble hybrid rice water saving direct sowing cultivation method based on smashing, burying and retuning to field of preceding crop straw, wherein the cultivation method combines agricultural machinery with the agricultural technology closely. Appropriately-precocious, high-yield, stress-resistant and high-quality rice and oilseed rape or wheat varieties are selected, after the oilseed rape or wheat is mature, straw smashing during machine harvesting or separate straw smashing after harvesting is adopted, the smashed straw is buried in the field through mechanical farming, direct sowing of hybrid rice is carried out through sowing machines or workers under non-irrigation conditions, emergence and growth of rice seedlings are guaranteed under non-basin irrigation conditions, field management measures similar to normal rice cultivation are not taken until the three-leaf stage of the rice seedlings, and the yield equal to or higher than that of local seedling raising and transplanting rice under equal conditions is obtained finally. The hybrid rice water saving direct sowing cultivation method based on smashing, burying and retuning to field of the preceding crop straw realizes light and simple returning to field and effective utilization of oilseed rape and wheat straw, can substantially save water for rice irrigation and avoid seasonal water consumption peaks and water competition contradictions in rice production in arid regions, and realizes cost-reducing efficient ecological rice cultivation.

The invention discloses a method for planting kenaf on heavy metal contaminated soil. The method includes the following steps: A, preparing the land and building an area, and applying an passivant to reduce the activity of soil heavy metal; B, selecting a specific kenaf variety with high heavy metal pollution resistant capacity, sowing sufficiently in due time, and guaranteeing a full stand through one sawing; C, determining suitable close planting, performing thinning and final singling in due time, and reserving basic seedlings; D, intertilling and weeding timely, topdressing and irrigating reasonably, and cultivating effective strong plants; and E, strengthening pest control and achieving high yield of the kenaf. The original kenaf outputs of mild, moderate and serious contaminated kenaf gardens are 276.2+ / -25.5, 247.6+ / -23.4 and 220.9+ / -21.2kg / mu respectively when the method is used for planting the kenaf, the high yield level in southern kenaf areas in our country is reached, content of heavy metal in the original kenaf can be controlled within a relative standard limit, agricultural safety and efficient utilization of the heavy metal contaminated soil are achieved, the technique is simple and convenient, the method is easy to implement, and an extremely wide application prospect is provided in vast heavy metal contaminated areas.

The invention relates to a dynamic cooperative transmission method in OFDM mobile relay network and a reuse greedy resource allocation algorithm adopted in the method. The cooperative transmission can realize the parallel transmission of a plurality of BS / RS in an OFDM signal synchronous and realize the resource reuse between BS and RS. By adopting the reuse greedy resource allocation algorithm, the resource is reused in the maximum degree on one hand, and the problem of pilot frequency collision is solved on the other hand, thus avoiding unusable and vacant resource caused by the pilot frequency collision and realizing high efficient utilization of the resource.

The invention provides malania oleifera lectin and a method for preparing the same. The method comprises the following steps: grinding malania oleifera, stirring and socking the ground malania oleifera into cold water, grading and precipitating by using ammonium sulfate, ultrafiltering to remove salt, concentrating, carrying out ion exchange chromatography, purifying, ultrafiltering to remove salt, concentrating, freezing and drying to obtain the refined malania oleifera lectin. The prepared malania oleifera lectin has the molecular weight of about 60kd, the electrophoresis purity of above 90% and the potency of 1:10<5> or more, namely the HIV infected cell (inhibition concentration 50) IC50 of 1:10<5>, can agglutinate the red blood cells of a rabbit, a pig, a chicken, a duck and a mouse and can be used for preventing HIV infection.

A concentrating type full-spectrum solar photovoltaic photo-thermal combination system comprises a main concentrator (1), a heat collecting pipe (2), a secondary concentrator (3), a photovoltaic device (4), a cooling device (5) and a support (6). The heat collecting pipe (2) and the secondary concentrator (3) are located at the focusing position of the main concentrator (1), the secondary concentrator (3) is fixed to the position above the main concentrator (1) through the support (6), the main concentrator (1) reflects and focuses solar radiation on the heat collecting pipe (2) and the secondary concentrator (3), and the secondary concentrator (3) reflects and focuses solar radiation on the heat collecting pipe (2). The photovoltaic device (4) is located on the inner wall surface of the secondary concentrator (3), and a back reflecting layer (8) of the photovoltaic device (4) reflects ultraviolet light and near-infrared light which cannot be absorbed and utilized by a photovoltaic cell layer (7) in sunlight to the heat collecting pipe (2) again. The cooling device (5) is located on the back face of a substrate (9) of the photovoltaic device (4) and used for cooling the photovoltaic device (4).

The present invention provides a calibration satellite ground application system and method, wherein the system comprises: a ground measurement control and operation control system, used for transmitting a resource usage plan, and satellite operation information and generating a user tracking plan, simultaneously transmitting telemetry data, data transmission data, and an application service demand confirmation to a ground application center in real-time; and a ground application center, a data synchronization receiving system and a broadcast data receiving terminal; wherein the ground application center is configured to formulate and send daily application service requirements according to the resource usage plan and the satellite operation information, and process the received telemetrydata, the data transmission data, and the application service requirement confirmation, to form orbit determination data and the track forecast data to release; the data synchronization receiving system is used for synchronous storage; and the broadcast data receiving terminal is configured to receive broadcast data autonomously. The system can meet current ground equipment calibration requirements and enhance scalability and flexibility of the system.

The invention discloses a smoke-free type vertical coal-saving machine special for an industrial boiler. The smoke-free type vertical coal-saving machine comprises a machine base, a fixing device is mounted above the machine base, a water storage tank is mounted on the top of the fixing device, a hot water pipe is arranged at one end of the water storage tank, a water tank cover is arranged above the water storage tank, a water inlet pipe is arranged on the water tank cover, a water storage tank and a water collection tank are symmetrically arranged at the position, on the two sides of the fixing device, of the machine base, the outer side of the fixing device is wound by a metal guide pipe, the two ends of the metal guide pipe are connected with the water collection tank and the water storage tank, and a smoke purification device is arranged at the end, close to the water storage tank, of the machine base. Efficient utilization of smoke heat and smoke automatic filtering purification functions are achieved, and the beneficial effects that a heat preservation layer is arranged, heat losses are small, a heat insulation layer is arranged, smoke heat losses are small, the smoke heat utilization rate is high, potential safety hazards do not exist, slag-free particle filtering is carried out on a smoke inlet, and therefore a flue cannot be blocked; coal is completely combusted, the resource utilization rate is high, and the smoke is automatically purified and exhausted to the air are achieved.

The invention discloses an intelligent holographic targeted public transportation system and an achieving method thereof. The system and the method mainly solve the problem that the traffic burden is increased due to the low punctuality rate, the low comfort level, the low convenience and the long driving time of buses caused by the lack of a complete vehicle scheduling system in the prior art. The intelligent holographic targeted public transportation system comprises an information collection platform, a data processing center, a vehicle scheduling platform and a user terminal, wherein the information collection platform is used for collecting user riding information, vehicle driving line information is stored inside the data processing center, the data processing center is connected with information collection platform through a network and processes the collected information, the vehicle scheduling platform exchanges information with the data processing center through the network, and the user terminal exchanges information with the vehicle scheduling platform and the data processing center through communication or the network. According to the scheme, by the aid of the system and the method, the utilization ratio of public transportation vehicles is fully guaranteed, so that the traffic burden and operating costs of vehicles are effectively reduced, and the system and the method is high in practical value and popularization value.

The invention discloses edible film forming liquid, a preparation method thereof, an edible film and a preparation method thereof. The edible film forming liquid comprises 8-22 parts by mass of solute and 78-92 parts by mass of distilled water. The solute comprises the following components: algal polysaccharides, fish collagen protein and glycerinum. The raw materials are natural and non-toxic; sources of the raw materials are abundant; and the prepared edible film can be applied to food packaging and medicine and cosmetic packaging. The ratio of the various components is researched, the novel method for preparing the edible film forming liquid and the novel film preparation method are provided, the film forming speed of the edible film is greatly increased, and requirements of large-scale industrialized production can be met. The tensile strength, the breaking elongation and the water vapor penetration coefficient of the edible film can meet requirements of food, medicine and cosmetic packaging to packaging materials. In addition, the edible film can be stably stored in an environment with the humidity of 30%-80%.

The invention relates to a bidirectional drive device and belongs to the technical field of drive mechanisms. The problem that in the prior art, a bidirectional drive device cannot drive two components to move independently in a time-share manner is solved. The bidirectional drive device comprises a bidirectional driver, trunkings and ratchet wheel assemblies. The ratchet wheel assemblies are divided into a positive ratchet wheel assembly and a negative ratchet wheel assembly, wherein the stop directions of the positive ratchet wheel assembly and the negative ratchet wheel assembly are contrary. The positive ratchet wheel assembly and the negative ratchet wheel assembly are fixed to an output shaft of the bidirectional driver correspondingly in a cup joint manner. The two trunkings are connected with the positive ratchet wheel assembly and the negative ratchet wheel assembly correspondingly. When the bidirectional driver rotates positively, the corresponding trunking is driven to rotate through the positive ratchet wheel assembly. When the bidirectional driver rotates negatively, the corresponding trunking is driven to rotate through the negative ratchet wheel assembly. The bidirectional drive device provided by the invention can be used for driving two ropes to move independently in a time-share manner.

The invention relates to an assembled annular structure, which can be used for an underwater engineering structure, a visit venue structure and the like. The assembled annular structure is characterized in that: the cross section of the assembled annular structure is of an equal angle octagon; the assembled annular structure is formed by connecting an inner columnar plate, an outer columnar plate, two circular plates, two inner conical plates and two outer conical plates; the inner conical plates are connected with the inner columnar plate and the circular plate; and the outer conical plates are connected with the outer columnar plate and the circular plate. The inner columnar plate, the outer columnar plate, the two circular plates, the two inner conical plates and the two outer conical plates are connected into the closed annular structure through angle connecting plates by using bolts and nuts, so the forming process requirement is greatly reduced, the manufacturing process is simple, the construction is convenient and fast, and the construction quality and the construction efficiency are improved; and in addition, the cross section is of the equal angle octagon or a regular octagon, so effective utilization rate of the annular space can be fully realized.

The invention discloses a fine processing method of a biomass organic fertilizer, wherein the fine processing method includes the processes of pretreatment of poultry and livestock manure, treatment of straw raw materials, initial fermentation, secondary fermentation, refinement and triple fermentation and the like, and finally screening and packaging to obtain the product. The biomass organic fertilizer has the advantages that high temperature decomposition and enzymatic hydrolysis conversion of a biological organic matter are performed by a functional microbial agent, and harmlessness is achieved; nitrogen, phosphorus, potassium and trace elements are enriched and adsorbed, effective ingredients in raw materials are retained, and high-efficiency utilization of resources is realized; thebiomass organic fertilizer is rich in various beneficial bacteria and nutrients and can be quick to dissolve and absorb after being applied to soil, and a stable and high-efficiency soil microecosystem is formed.

The invention relates to an urban garbage gasification and energy utilization system and method, specifically to a garbage material gasification and energy utilization system composed of a garbage gasification reaction device, a gasifying agent generation device, a fuel gas purification treatment device, a garbage crushing, drying and airtight feeding device, an airtight deslagging device, an oxidizing agent input device and the like, and an urban garbage gasification and energy utilization method. The system is characterized in that the gasifying agent generation device generates a hypoxic high-temperature gasifying agent which is required by garbage gasification and of which the temperature can be effectively controlled according to garbage materials and process requirements, garbage materials are directly contacted and acted with the hypoxic high-temperature gasifying agent to generate a gasification reaction, and the garbage gasification reaction device provides a space structure and reaction conditions of the gasification reaction. According to the gasification and energy utilization requirements, while the gasification reaction is maintained and the fuel gas is generated andoutput, the hypoxia high-temperature gasifying agent can be output as high-temperature heat energy, so that clean and efficient gasification and energy utilization are realized; and the system and themethod have the characteristics of high gasification and energy efficiency, no dioxin generation, suitability for urban garbage containing hydrocarbon components and the like.

Disclosed is a method of interplanting a vineyard with Taxus chinensis. The method comprises the steps of firstly, deeply turning and leveling the land in the vineyard in mid-January, then, furrowing and ridging every 0.5-0.7 m in the south-north direction, and applying organic fertilizer to the bottoms of the trenches, wherein the depth of trenches is 0.2-0.4 m, and the width of the trenches is 0.4-0.6 m; when the temperature is stably above 10 DEG C in mid-March, planting the grape seedlings in the trenches in the planting spacing of 0.5-1 m, building a vertical trellis for each row of the grape seedlings and making main vines of the grape seedlings extend to a vertical trellis plane, spraying a growth promoter onto the grape seedlings once a week until the canopy density of the grape vines on the vertical trellis plane is 0.4-0.6, and interplanting the gap between two rows of the grape seedlings with two rows of Taxus chinensis seedlings which are 0.2-0.3 m high, wherein the line spacing of the Taxus chinensis seedlings is 0.3-0.5 cm and the row spacing of the Taxus chinensis seedlings is 0.3-0.5 cm; finally, managing the field.

The invention discloses a brown coal drying method and device utilizing waste heat of smoke and steam of a power plant. The drying method comprises two-time drying treatment, wherein the two-time drying treatment comprises the steps that firstly, the high-temperature smoke directly discharged by a power plant coal fired boiler is utilized for conducting first-time drying treatment on damp materials, the high-temperature smoke directly makes uniform contact with the damp materials, and intermediate materials are obtained; and secondly, the high-temperature smoke and the high-temperature steam directly discharged by the power plant coal fired boiler are utilized for conducting second-time drying treatment on the intermediate materials at the same time, the high-temperature smoke directly makes uniform contact with the intermediate materials, meanwhile, the intermediate materials make uniform contact with a heat exchange pipe inflated with the steam for heat exchange, dried materials are obtained, and second-time drying treatment is achieved. The brown coal drying method and device have the beneficial effects that the power plant waste heat serves as a heat source for brown coal drying, the running economical efficiency of a power plant generator set is improved, a system for drying the brown coal and a brown coal power generation system are integrated, efficient utilization of power plant energy and optimization of a technology system are achieved, and the brown coal drying method and device belong to the poly-generation technology of the power plant.

The invention relates to a preparation method for halophyte silage. The forage utilization of the halophyte is taken as the goal of the method; on the basis of the salt content of halophyte and the salt supplementary feeding content of livestock, the halophyte and the silo corn or the forage grass sorghum are mixed and ensiled at ratio; through the mixing and ensiling of the halophyte and the silo corn or the forage grass sorghum, the efficient utilization of the halophyte for feeding is realized. A technical reserve is accumulated for promoting the agricultural productivity in a drought and saline area. According to the method provided by the invention, the problems of harvesting and utilizing the halophyte after the improvement of the saline-alkali soil can be effectively solved and the source of the halophyte silage can be expanded; the biogenetic salt contained in the halophyte can effectively meet the requirement of the livestock growth for salt, can promote the animal palatability, is beneficial to the improvement of meat quality and has obvious practical value and economic significance. The method provided by the invention has been respectively demonstrated and applied in Xiaoguai Village of Karamay, in the Karamay forestation emission reduction operation area of Xinjiang Oilfield Company and in Kasai Village of Moyu County of Hotan City. The tests prove that the palatability of the halophyte silage is excellent.

The invention discloses a large and medium-sized kitchen waste heat recovery and utilization system comprising a smoke heat recovery device and a phase change heat storage tank. A circulation waterwayis formed between a first water tank in the phase change heat storage tank and the smoke heat recovery device. A second water tank in the phase change heat storage tank communicates with a domestic hot water network. A refrigeration house refrigerator unit communicates with a cooling tower through a cooling water outlet pipeline and a cooling water inlet pipeline, and a circulation waterway is formed. A cooling water storage tank is in parallel connection with the cooling water outlet pipeline through a water storage tank water inlet pipe and a water storage tank water outlet pipe. The largeand medium-sized kitchen waste heat recovery and utilization system further comprises a dual-evaporator dual-condenser hot water heat pump unit comprising a first circulation waterway and a second circulation waterway. The first circulation waterway absorbs heat in the cooling water storage tank, and the heat serves as a domestic hot water source. After absorbed by the second circulation waterway,air heat in a kitchen serves as a dining room auxiliary heating source in winter. Through the large and medium-sized kitchen waste heat recovery and utilization system, waste heat of various energy consumption modules in the large and medium-sized kitchen is recovered simultaneously and then is utilized, and high practicability and economy are achieved.

The invention discloses a method for synthesizing small-molecular-weight acyl fluoride by oxidative cracking of low-molecular-weight perfluoropolyether waste at high temperature, which comprises the following steps: by taking the low-molecular-weight perfluoropolyether waste as a raw material, carrying out oxidative cracking reaction on the low-molecular-weight perfluoropolyether waste and oxidizing medium gas at high temperature, and cracking a long carbon chain of a polymer to generate small-molecular-weight (C1-C4) acyl fluoride at the reaction temperature of 400-700 DEG C, the reaction retention time is 10-200s, the oxidation medium is oxygen or ozone, and the product is controllably cracked into high-value products such as carbonyl fluoride, perfluoroacetyl fluoride, perfluoropropionyl fluoride and perfluorobutyryl fluoride. According to the method, high-value acyl fluoride gas can be obtained through thermal cracking, the method can be applied to the fields of cleaning agents, etching agents, pesticide intermediates, fluorine-containing material monomers and the like in the electronic industry, low-molecular-weight perfluoropolyether waste can be further effectively utilized, circulation of green chemical engineering is achieved, and environmental damage is reduced.

The invention discloses a multipurpose water purification device, which comprises: a main shell communicated with a water inlet pipeline and a water outlet pipeline; and a second shell which is externally connected to the exterior of the main shell, wherein a filter element switchable filtering system and a water quality detection system are arranged in the main shell; the filter element switchable filtering system is a multi-stage filtering system; a filter element switching mechanism is arranged on the filter element switchable type filter system; the filter element switching mechanism is communicated with the water inlet pipeline, and switching of the filter element switching mechanism is realized through water inlet pressure. The invention also discloses a water purification method. The water quality detection system is matched with the filter element switchable type filtering system to detect the water body components firstly, and then the combination of the types of the filter element modules is selected according to the detection result, so that the efficient utilization of the filter element assembly and the automatic and intelligent water quality purification work of the water purification device are realized.

The invention discloses a research system for a resonant gyroscope capable of directly outputting frequency. The research system is mainly applied to the theoretical and experimental research of a resonant gyroscope capable of directly outputting frequency. The research system comprises a magnetostriction actuator, a harmonic oscillator, a signal excitation unit and a signal detection unit, wherein the signal excitation unit generates a sine-wave drive signal according to a mechanical characteristic of a resonant gyroscope mass block under the action of coriolis force to act on the magnetostriction actuator, so that the magnetostriction actuator applies alternating sine force in the axial direction and acts on the movable end of the harmonic oscillator, the inherent resonant frequency of the harmonic oscillator is also changed, the principle and function verification of the resonant gyroscope capable of directly outputting frequency is realized, the work characteristics of the gyroscope under conditions of different structural models and different resonant oscillators as well as at different input angular rates can be simulated by changing output signals of a drive unit, non-linear dynamic feature of the gyroscope during inputting of non-linear signals is obtained by inputting non-linear drive signals, and an effective research method and an experimental platform are provided for non-linear research of the gyroscope.

The invention provides a method for replacing corn ingredients in pig feed. The corn ingredients are contained in the pig feed, in addition, mechanical activated wheat straws are utilized for replacing the corn ingredients accounting for 3 to 8 weight percent of the pig feed, and during the mechanical activation, a vertical mill is used for crushing the wheat straws, and the crushing time is 1 to 3 minutes. The reducing sugar of the mechanical activated wheat straws is obviously increased, the water-holding capacity and the expansion force are greatly enhanced, active base groups on the surfaces of straw fiber are increased, the cation exchange capability is enhanced, the enzymolysis reaction activity is enhanced, the water diffusivity is obviously enhanced, good biological activity and nutrition performance are realized, and feeding experiments prove that the pig feed prepared by the method has the advantages that the pig feeding quantity and the daily weight increase can be improved, the feed-weight ratio is slightly increased, and the integral feeding effect of the pig is improved. The method provided by the invention has the advantages that the effects of efficiently utilizing crop wastes of wheat straws and changing the wheat straws into feed are realized, and the feed cost can be reduced.

The invention relates to a trickle charging circuit based on a super capacitor, comprising a DC / DC conversion unit, a current-limiting protection unit and a triode driving unit. The working characteristics of a triode and the characteristics of a micro leakage current diode are utilized to realize trickle charging of a super capacitor and reduce the leakage current loss in the circuit. Compared with a traditional existing super capacitor charging circuit, the trickle charging circuit has the characteristics of trickle charging, controllable current and the like, and the capacity of the super capacitor can be utilized at the maximum efficiency.