1185results about How to "Increase economic benefits" patented technology

Described herein are methods, systems, and articles that are useful for controlling a fluid blending system, such as a fluid utility system. The methods, systems, and articles of this invention allow for the control of both a quantity metric (e.g., pressure) of the blended fluid the fluid blending system as well as at least one quality metric of a blended fluid in a fluid blending system. For example, the methods, systems, and articles of this invention provide for the simultaneous control of both the pressure and quality of fuel gas within a fuel gas header system.

The invention discloses a system and method for treating domestic sewage in a rural area, which belongs to the technical field of environment-friendly sewage treatment. The domestic sewage enters an aerated grit chamber also serving as an adjusting tank for carrying out appropriate grit setting and adjusting, so that a part of inorganic pollutants is removed; the sewage is conveyed to a concentration type two-stage anaerobic reaction tank through a lifting water pump, suspended matters in the sewage are filtered and intercepted when the sewage passes through a concentration filter layer; contaminated gases, such as CH4, H2S and the like generated in the concentration type two-stage anaerobic reaction tank are discharged through a gas port; a part of concentration liquid is discharged out of the system through a concentration bottom sediment drainage pipe by opening a valve regularly; supernatant fluid from a water outlet of the concentration type two-stage anaerobic reaction tank enters a ladder plunge type wetland, a non-medium wetland, an economic income type wetland, a bacteria filter and a fishpond in turn; and nitrogen and phosphorus eutrophic pollutants in water are filtered, intercepted, adsorbed, decomposed, absorbed and precipitated by rootstocks of aquatic plants and the like. Therefore, according to the novel technology disclosed by the invention, the purpose of water purification can be achieved through regular harvest.

The invention discloses a laying hen feed taking nuts as feed components and a classified feeding method of the laying hen, wherein the classified feeding method comprises laying hen feed preparing, laying hen drying water preparing, laying hen classifying and a laying hen feeding method. The laying hen feed is characterized in that the laying hen feed has nut components, wherein the nuts comprise shelled melon seeds (A3), peanut kernels (A4), perilla seeds (A15), castor seeds (A25), sesames (A34), and the like. According to the laying rate, the laying hens are classified into ri laying hens, mu laying hens, chang laying hens, jing laying hens and to-be-selected laying hens; a feed component (A), a feed component (B) and standard feed (M) are pre-mixed according to a certain weight ratio to prepare a mixed feed (X); the mixed feed (X) is fed for a laying hen crowd with different laying rates according to a certain number of the laying hens to feed the laying hens; a drinking water component (C) and a drinking water component (D) are added into standard drinking water (W) in a ratio of (C) (1-5): (D) (2-10), 700g-1000g in total, by respectively adopting a penetrating method to prepare mixed drinking water (Y) for the laying hens to drink. After the method is adopted to feed the laying hens, the egg product quality can be effectively improved, meat quality of obsolete laying hens can be improved, and great economic benefits can be brought for the breeding industry.

The invention discloses a Chinese medicinal composition for improving the egg yield of laying hens and a feed. The Chinese medicinal composition comprises astragalus root, Eucommia ulmoides, honeysuckle, pilose asiabell root, sanguisorba officinalis, hawthorn, tuckahoe, Mangnolia officinalis, Chinese pulsatilla root, giant knotweed, ricepaper pith, bighead atractylodes rhizome, dried tangerine peel, malt, isatis root, atractylodes rhizome, indigowoad leaf, licorice, cyrtomium fortunei, nutgrass galingale rhizome, grassleaf sweelflag rhizome, pinellia tuber, medicated leaven, Chinese angelica and root of rehmannia. According to the composition, through compatibility of the medicated leaven and the hawthorn, the digestion function of the laying hens is enhanced, and the nutrient absorption rate of the laying hens is improved; and through compatibility of the Chinese angelica and the root of rehmannia, secretion of yolk of the laying hens is promoted, so that the egg yield is improved.

The invention relates to a light-color quenching oil complexing agent composition and a preparation method thereof. The light-color quenching oil complexing agent composition comprises the following materials according to proportion by weight: 40 to 88 parts of refrigerant catalyst, 1 to 10 parts of brightener, 1 to 15 parts of antioxidant and 10 to 40 parts of anti-precipitation agent. The prepared composition product has high-temperature and low-temperature refrigeration catalysis functions and favorable brightness property and high-temperature and low-temperature anti-oxygen property and is suitable for preparing common and fast quenching oil with fast brightening.

The invention discloses a manufacture method of an automobile brake pad, comprising the following steps of: mixing, and filling a friction material into pores of a porous metal material by a vacuum filling method, so that a friction material blank can be formed; injecting, and adding the friction material blank into an injector to inject into a compacting mould, wherein the injector is a screw rod-rotatable injector; compacting the friction material blank in the mould to prepare a friction block blank, wherein in the process of compacting, keeping the hot-press temperature at 148-152DEG C, the hot-press pressure at 23MPa, and keeping the pressure for 5 minutes; cutting the prepared friction block blank into a brake pad friction block according to the required size, and putting the friction block and the steel back in the mould to be compacted and shaped into a brake pad blank; and thermally treating the brake pad blank to prepare the brake pad, wherein the thermal treatment temperature of the thermal treatment technology is 160DEG C, and the thermal treatment time is 2 hours, and cooling along with a furnace.. The manufacture method has the benefit effects that the abrasive resistance and shock resistance of the automobile brake pad can be improved.

The invention discloses a method for preparing earthworm cultivation substratum. By mixing livestock dung and edible fungus residue without foreign matters to carry out anaerobic fermentation, the method obtains the substratum for cultivating and reproducing earthworms, the livestock dung is pig dung or cow dung or the mixture of pig dung and cow dung, and the edible fungus residue is residue which is left over in the growth of cultured saprophytic lignicolous fungi or coprophilous fungi. Since the method utilizes the livestock dung and the edible fungus residue as the cultivation substratum to raise the earthworms, the method not only solves the problem of dung accumulation and waste and prevents environment pollution, but also increases the cultivation scale and growth quality of the earthworms by adding the edible fungus residue, thus effectively increasing the output of the earthworms.

The invention provides a dairy cow feed which takes nutlets, dried vegetables, dried fruits and Chinese herbal medicines as components of the dairy cow feed and drinking water components of the dairy cows, and a method for breeding the dairy cows by stages. The dairy cow feed containing nutlet components comprises a dairy cow feed and dairy cow drinking water. The dairy cow feed is characterized in that the dairy cow feed contains the nutlet components; the nutlets comprise shelled melon-seeds (A3), peanut kernels (A4), perillaseeds (A15), hemp seeds (A25), sesames (A34)...and the like; the variety of the nutlet components contained in the feed is more than or equal to one and less than or equal to 16. The dairy cow feed containing the nutlets components comprises a feed component (A), a feed component (B), a common component (T), a standard feed (M) and a mixed feed (X); the dairy cow drinking water comprises a drinking water component (C), a drinking water component (D), a common component (T), standard drinking water (W) and mixed drinking water (Y); the dairy cow feed and the dairy cow drinking water are used for feeding the dairy cows according to the method provided by the invention so that the quantity of produced milk of the dairy cows can be increased and the quality of the dairy cows is improved; the meat quality of the dairy cows is improved and great economic benefits can be brought to a dairy cow industry.

The invention discloses a process for gasification-liquefaction disposal of domestic garbage and organic waste, which relates to disposal technology of the domestic garbage and the organic waste. The process comprises the steps of: performing oxygen-free gasification on the domestic garbage or the organic waste in a plasma gasification furnace to produce hydrogen-rich syngas which does not contain oxygen and takes CO and H2 as main components, wherein the conditions of the formation of dioxin are avoided; then sending the hydrogen-rich syngas taken as feed gas into a methanol synthesis reactor to catalytically synthesize a methanol product after temperature reduction and dust removal / purification; then drawing the methanol product out of the reactor to mix with lime water for terminal purification operation; and using calcium hydroxide as an absorbent to ensure that pollutants and purities which are not eliminated in a dust removal / purification working procedure and comprise the dioxin are removed. The process almost has no the discharge of the pollutants during the whole disposal process, and is suitable for harmless disposal of municipal domestic waste, rural domestic refuse, medical waste, industrial polymer waste, agricultural and forestry waste, composting leftovers and refuse sorting field waste.

The invention discloses a tourist attraction 360-degree panoramic construction system and method. The system comprises a system initial interface module and a panoramic roaming module. The tourist attraction 360-degree panoramic construction method comprises the steps of on-site shooting, landscaping builder picture splicing, roaming master scene manufacturing, Flash manufacturing and system compact disc releasing. According to the tourist attraction 360-degree panoramic construction system and method, an exquisite compact disc is designed as media for propagating 360-degree panoramic tourism resources and is convenient to carry and low in cost, the tourist attraction 360-degree panoramic construction system and method do not depend on the internet, and the viewing time is saved; the tourist attraction 360-degree panoramic construction system changes showing of original dull 2D plane pictures and videos with the poor interaction on the internet, mutual interaction between the three-dimensional real environment and a browser is achieved, the tourist attraction 360-degree panoramic construction system and method can be used as good teaching materials of a training tour guide, the operation process is simple, the full-dimensional showing effect is good, and economic benefits are large.

The invention discloses a coordinated optimization control and economic evaluation method for a wind power consumption comprehensive energy system, and belongs to the technical field of wind power. The comprehensive energy system consists of a wind power plant, an energy storage system and a heat accumulation type electric boiler. Due to the fact that the comprehensive energy system has differenttime scales, and the energy storage system is used for coordinating the combined operation of the heat accumulation type electric boiler so as to consume wind abandoning for supplying heat for residents. A wind power-energy storage system and a wind power-heat accumulation type electric boiler are taken as game players, the factors such as the energy storage system, the heat accumulation type electric boiler, various benefits of the wind power plant and cost are taken into account comprehensively, an energy storage coordinated heat accumulation type electric boiler consumption wind power windabandoning economic evaluation model based on a game theory is established, and the model is solved by using particle swarm optimization. The optimal operating power of the energy storage system and the optimal operating power of the heat accumulation type electric boiler at every moment are obtained while the maximum overall economic benefit of the comprehensive energy system is guaranteed, and the wind abandoning consumption capacity of the heat accumulation type electric boiler is further promoted.

The invention discloses a method of acquiring available transfer capacity of an electricity-gas interconnected energy system and provides a concept of a static safety domain of the electricity-gas interconnected energy system. By means of solution by the continuous power flow method, solved is the problem that the traditional method of acquiring available transfer capacity, making no consideration on primary energy supply of NGFPP (natural-gas fired power plants) and operation constraints of a natural gas system, may drive the operation state of the natural gas system to exceed the safety constraint, thus influencing primary energy supply of the NGFPP. Verification by the interconnected energy system composed of an IEEE 39-node power transfer system and a 20-node Belgium gas transfer system shows that the method is generally applicable, ensuring safety and reliability of primary energy supply of the NGFPP; meanwhile, ATCs (available transfer capacities) of different areas are analyzed with a uniform energy market, and greater economic benefit is brought to participants of the whole energy market at the premise of ensuring the safety of the interconnected energy system.

The invention relates to sowing equipment, in particular to an agricultural multifunctional sowing device. The agricultural multifunctional sowing device is quick in sowing, convenient to use during sowing, capable of saving labor and good in sowing effect. In order to achieve the technical purposes, the agricultural multifunctional sowing device comprises a fixing frame, a guide block, a movable frame, a disc, a second belt wheel, a motor, a roller, a second bearing block, a screw rod, a connecting rod, a nut, a second rotating shaft and the like; the guide block is in sliding fit with the fixing frame, the connecting rod is arranged on the lower portion of the guide block, the nut is arranged at the lower end of the connecting rod, a left and right moving rod is arranged on the lower side of the nut, and a sowing groove is formed in the lower end of the left and right moving rod. The device has the advantages of being quick in sowing, convenient to use during sowing, capable of saving labor and good in sowing effect. The large-area sowing work can be completed very quickly by using the device, sowing is convenient, and a large quantity of manpower resources can be saved.

The invention discloses a Chinese herbal medicament pigeon feed, which is prepared from the following raw materials in percentage by weight: 37 to 46 percent of corn, 18 to 27 percent of pea, 7 to 11 percent of bean cake, 2 to 4 percent of fish meal, 1 to 5 percent of fructus cannabis, 8 to 12 percent of laterite, 3 to 5 percent of bentonite, 9 to 13 percent of yellow sand, 2 to 4 percent of common salt, 0.5 to 1 percent of binding agent, and 2.4 to 3.2 percent of Chinese herbal medicament mixture containing pilose asiabell root. The Chinese herbal medicament mixture containing the pilose asiabell root is prepared by mixing the pilose asiabell root, astragalus, gentian, liquorice root, common andrographis herb and plantain herb according to the weight ratio of 3:2:1:1:0.5:0.5. For further improvements, the feed also comprises 0.3 to 0.5 percent of Chinese caterpillar fungus and 0.5 to 0.8 percent of lucid ganoderma. The Chinese herbal medicament pigeon feed has the characteristics of good palatability, comprehensive nutrition, obvious health-care and disease prevention functions and low cost.

The invention discloses a PID (Potential Induced Degradation)-resistant circuit and a monitoring device thereof. The PID-resistant circuit comprises a photovoltaic cell, an inverter and a ground circuit, wherein the anode of the photovoltaic cell is connected with the anode of the direct-current input of the inverter through an anode relay; the cathode of the photovoltaic cell is connected with the cathode of the direct-current input of the inverter through a cathode relay; the ground circuit comprises a fusing protection circuit and a current sensor; the fusing protection circuit consists of a fuse and a protective resistor which are connected in parallel; and one end of the ground circuit is connected with the cathode of the direct-current input of the inverter, and the other end of the ground circuit passing through the fusing protection circuit and the current sensor is grounded. Due to the adoption of the PID-resistant circuit, the phenomenon of PID existing in a photovoltaic cell panel can be eliminated effectively; and meanwhile, ground leakage protection and detection are performed on an entire photovoltaic cell panel array, so that electric shock accidents are avoided and rapid detection of ground short-circuit fault is realized.

The invention discloses an existing subway station main structure broadening construction method. The existing subway station main structure broadening construction method comprises the following steps that firstly, bottom board trepanning dewatering construction comprises the processes that 101, dewatering well pipes are installed; 102, dewatering is conducted, and dewatering construction is conducted through the dewatering well pipes until underground water below a bottom board is reduced to the designed depth; secondly, station main structure broadening construction is conducted, and broadening construction conducted on an broadening subway station main structure comprises the processes that 201, new underground continuous wall construction is conducted; 202, broadening construction comprises the steps of broadening section division, first-period broadening-section broadening construction and second-period broadening-section broadening construction; 203, new side wall construction is conducted. The existing subway station main structure broadening construction method is simple in step, reasonable in design, convenient to achieve, low in investment cost, rapid in construction speed and good in construction effect, and effectively solves the problem that in subway station broadening construction, trepanning and dewatering are conducted on the existing bottom board with recovered water pressure difficultly.

The invention discloses an automatic train parking control method. The automatic train parking control method includes: calculating an emergency brake trigger curve of a train to generate a speed-brake distance relation curve of the train and generating a target acceleration-brake distance relation curve of the train according to the speed-brake distance relation curve of the train; by the arrangement of control threshold of the train, generating the speed-brake distance relation curve of the train, calculating in real time whether acceleration and the brake distance of the train are conform to the target acceleration-brake distance relation curve of the train or not, if not, automatically controlling the train to aim at the acceleration with ATO (assisted take off) till pull up. With the method, construction cost of train tracks can be reduced on the premise of not lowering running efficiency of the train.

The invention belongs to the field of chemical reaction engineering and particularly relates to a method for optimizing the operation of an ethylene cracking device. In the method provided by the invention, value maximization is utilized as a scale and the operation optimization scheme of a cracking furnace is formulated aiming at the constitution and market price of different raw materials and the process characteristics of the device by virtue of establishing a yield prediction model, a value prediction model and a value optimization model. After the optimization scheme provided by the invention is adopted, the optimal cracking temperature is lower than the cracking temperature obtained by the optimization scheme which is formulated by the maximum yield of principal products such as ethylene and the like; the operating period of the device is effectively prolonged; the decoking cost is lower; the separation energy consumption is reduced; the potential of the processing capability of the device is further enhanced; and the highest economic benefits are simultaneously obtained.

The invention relates to a thermoelectricity tri-generation method and a system thereof, wherein the system includes a thermoelectricity tri-generation set used for generating the electric energy and the heat energy; an air-condition coupled with the thermoelectricity tri-generation set through the power line and for driving the heat pump to generate the heat energy by the electric energy generated by the thermoelectricity tri-generation set; an air-condition ammeter phase coupling with the air-condition specially used for detecting the power consumption of the heat pump in the air-condition; a control device used for obtaining the electric energy of the thermoelectricity tri-generation set and the optimal working point data generated by the heat energy according to the electric consumption data and the energy consumption, and controlling the operation of the thermoelectricity tri-generation set based on the optimal working point data. Adopting the device, the inhabitant heating users are divided into the air-condition heat pump heating users and the hot water type radiator centralized heating users, and the electric energy and the heat energy are supplied to the heating users by the thermoelectricity tri-generation for the requirement in the winter, which reduces the heat road difference in the summer and waiter, advances the energy source using efficiency and the economical profit of the thermal power plant.

The invention discloses a method for recovering valuable metal from red soil nickel minerals comprehensively. At present, because the red soil nickel minerals are treated by a wet method, and water contained in mineral aggregates which enter a leaching system is not controlled effectively, the water content of the mineral aggregates which enter the system is about 70 percent, the concentration ofnickel ions in a leachate of the system in a nickel precipitation process cannot be enriched and is low due to large total amount of the water, and the volume of water which is needed to be treated in the system is large and the treatment cost is high. The method comprises a mineral aggregate preparation section, a leaching extraction deironing section, a chromium recovery section, a nickel precipitation section and a magnesium recovery section which are performed sequentially, and is characterized in that leaching reaction is performed under a sulfuric acid system, and the total quantity of waste water and waste residues of the system is reduced by a series of measures to improve the recovery rate of the valuable metal; and a large number of production auxiliary materials are used in theproduction process, and are recycled, so that the production cost is reduced substantially.

The invention discloses a method for smelting reduction production of zinc smelting slag. The method for smelting reduction production of the zinc smelting slag comprises the following steps that S1,the zinc smelting slag is added into an insulation device or a smelting reaction device allowing slag to flow out, calcium minerals and additives are added, all the components are heated to be in themolten state, one or more of copper oxide minerals, copper sulfide minerals and copper-containing materials are added into the insulation device or the smelting reaction device at the moment, reactionslag is monitored in real time, and molten slag is obtained by regulating and controlling the temperature and the CaO / SiO2 basicity ratio of the reaction slag; and S2, the molten slag is obtained, aferrum-containing silicate mineral phase, a copper-rich phase, a ferrum-rich phase and dust containing zinc, lead, bismuth and smoke are obtained through settlement separation, gold and silver are migrated and enriched to enter the copper-rich phase, and all the phases are separated. According to the method for smelting reduction production of the zinc smelting slag, the slag copper content (lowerthan 0.1 wt%) can be decreased, efficient recovery of components such as copper, ferrum, gold, silver, lead, zinc, indium, bismuth, sodium and potassium can be achieved, and low-copper ferrum-containing materials are obtained; and the metal recovery rate is high, the production cost is low, environmental friendliness is achieved, and economic benefits are high.

The invention relates to a multifunctional entertainment information advertisement device, comprising a frame, a microprocessor arranged inside the frame, a display screen which is arranged on the frame and is connected with an output interface of the microprocessor by a display drive unit, an input device connected with an input interface of the microprocessor, a communication unit connected with an I / O interface of the microprocessor, an authorization device which is connected with the microprocessor and is used for controlling whether the operation of the input device is allowed and an advertisement exposure control module which is connected with the authorization device and controls the display screen to display the presetting videotext. The multifunctional entertainment information advertisement device of the invention collects the functions of entertainment, information and advertisement into a whole and serves a plurality of purposes as well as interiorizes the contents of advertisement by the interaction; moreover, a user can select the entertainment programs by themselves, thereby satisfying the individual requirements and ensuring that the user can kill time in the entertainment; in addition, the economic benefits of operators can be improved by providing non-gratuitous services.

The invention provides a comprehensive utilization method of aromatic nitro compound chlorination tail gas, which is characterized in that: sulfuric acid is used for absorbing nitrogen oxides and nitryl chloride in the aromatic nitro compound chlorination tail gas to generate mixed acid containing nitric acid, sulfuric acid and nitrous acid, the generated mixed acid is used for nitration of aromatic compound; the tail gas which is not completely absorbed by sulfuric acid is absorbed by water to form acid liquor comprising hydrochloric acid mainly and a little nitric acid; the remaining tail gas is processed by dilute base to be absorbed completely, and waste liquor enters wastewater treatment system.

The invention provides an intelligent photovoltaic greenhouse monitoring system and a monitoring method thereof, wherein the intelligent photovoltaic greenhouse monitoring system effectively improves the energy utilization rate of a photovoltaic greenhouse. The intelligent photovoltaic greenhouse monitoring system comprises a greenhouse body, a distribution room, an environment detection system, a monitoring platform, photovoltaic modules, a ventilating skylight, a soil environment monitoring system, an air environment monitoring system, an intelligent controller connected with the monitoring platform, a light supplementing system, a fan, a temperature supplementing device, a pesticide killing device, a spray irrigation system and a carbon dioxide generator, wherein the distribution room, the environment detection system and the monitoring platform are located outside the greenhouse body; the photovoltaic modules and the ventilating skylight are located on the top of the greenhouse body; the soil environment monitoring system, the air environment monitoring system, the intelligent controller, the light supplementing system, the fan, the temperature supplementing device, the pesticide killing device, the spray irrigation system and the carbon dioxide generator are located in the greenhouse body; the light supplementing system, the fan, the temperature supplementing device, the pesticide killing device, the spray irrigation system and the carbon dioxide generator are connected with the intelligent controller. The environment detection system, the soil environment monitoring system and the air environment monitoring system are in wireless connection with the monitoring platform; the photovoltaic modules are arranged on the top of the greenhouse body at intervals; the distribution room comprises an inverter, a storage battery and the controller and is connected with a power grid; the intelligent controller is connected with the storage battery, the inverter and the power grid.

Animal hair in life is a waste energy, the protein structure of the animal hair is stable and difficult to decompose under the natural condition, poultry feather and pig hair are used as raw materials to be mixed with alkaline substance slaked lime and sodium bicarbonate, the mixture is firstly soaked and then boiled, after the structure of the poultry feather and pig hair is destructed, the poultry feather and pig hair are ground and fermented to be used for preparing organic matters of the fertilizer, so that waste is utilized, the environment pollution is avoided, the resource is saved, the inner layer contains NPK (Nitrogen, Phosphorus and Potassium) element and trace minerals which are necessary for the high yield of crops, the NPK element and trace minerals are wrapped by a coating agent prepared by utilizing the resin so as to be used as a core of the organic fermented material, a film material is slowly decomposed, an effect for controlling the release of internal nutrients can be achieved, the waste caused by frequent application of fertilizer can be avoided, the cost is reduced, and the economic benefit is increased.

The invention relates to a multidirectional discharging method of a mobile discharging car, and belongs to the technical field of a bulk material discharging device. The multidirectional discharging method is characterized in that materials are transferred into a belt conveyor at the lower part through a funnel and then are transported to the position above a discharging point for discharge; and by adjusting the horizontal distance between the discharging point of the belt conveyor and the outlet of the funnel, discharging position is adjusted without increasing overall height of the conveyor. The multidirectional discharging method has the beneficial effects that the materials can be flexibly discharged in multiple directions as required; the structure is compact, thus saving equipment installation space; a long chute is not used, thus avoiding phenomena such as material aggregation and blockage; by effectively controlling equipment height, discharging height difference is decreased, and dust generated during the material transfer process is reduced, and good dedusting and environmental protection effect can be obtained by utilizing dedusting equipment; and steel structural members in the equipment are simplified and diminished, thus the equipment can be conveniently installed and simply debugged, operated and maintained, and good economic benefit can be obtained. The mobile discharging car is particularly applicable to workplaces with narrow plant space and higher requirement on environmental quality.

The invention relates to the technical field of animal feed, in particular to a compound pre-mixed material for dairy cows in the post-perinatal period and application thereof. The compound pre-mixed material consists of iron sulfate, manganese sulfate, zinc sulfate, copper sulfate, 1-percent potassium iodide, 1-percent cobalt sulfate, 1-percent sodium selenite, vitamin A, vitamin D, vitamin E, glucose, coated choline, rumen bypass fat, nicotinic acid, vitamin C, yeast cultures, organic chromium, dihydropyridine, sodium bicarbonate, and a carrier. The compound pre-mixed material can be safely and conveniently used, obviously improve an effective conception rate and oestrus rate of the dairy cows, reduce non-pregnant days of the dairy cows, shorten a claving interval of the dairy cows, enforce the body recovery of the dairy cows after delivery, lowers a culling ratio of the dairy cows, prolong a use period of the dairy cows, improve a feeding level of the dairy cows, and increase economic benefits of dairy cow farmers; and the compound pre-mixed material also has the advantages of easy source of raw materials, lower cost, obvious effect, easy popularization and wide application prospect, and is specially used for feeding the dairy cows in the post-perinatal period.

The invention provides a process for recycling copper through electrodeposition by treating scrap copper materials by adopting a cyclone electrolysis technology, belonging to the technical field of recycling copper from wastes containing copper. The process is characterized by taking various purchased wastes containing copper as raw materials, preliminarily screening and grinding the wastes, adding the materials to a dissolved copper leaching bath device to undergo continuous copper dissolving to obtain a copper sulfate solution, then filtering the solution with precision filter equipment, decoppering the obtained filtrate through cyclone electrolysis, scalding an obtained copper pipe with weak acid and then feeding the copper pipe into a product processing unit to process a standard copper plate. The process has the following beneficial effects: through portable or module assembly, the cyclone electrolysis bath and support equipment are convenient to install, dismantle and move; the solution circulates in a closed loop, thus avoiding emission of harmful gases; electrolytic deposition is carried out on the metals selectively and the copper can be better purified by applying the cyclone electrolysis technology; higher current density and current efficiency are ensured, fewer reagents are consumed, the production cost is lowered and the enterprise revenue is improved; and high efficiency and high purity electrolytic extraction is carried out on the solution, the recycled copper is the standard cathode copper and the total recycling rate is above 96%.

The invention discloses an agricultural practical technology belonging to the field of biology, particularly relates to an application method of a plant straw bioreactor landfill technology. The plant straw bioreactor landfill technology adopts a high-efficiency straw returning mode and can eliminate the pollution of straws on environments and increase the content of organic matters contained in soil; carbon dioxide generated in the biological transformation process can be used for the photosynthesis of crops, and generated heat can effectively increase temperature inside a greenhouse in spring and winter, promote the growth of the crops and enhance the yield and the quality of the crops. The plant straw bioreactor landfill technology can be popularized and used for enabling organic matter fertilizers generated by the straws to meet the requirements for plant growth and vaccines to be beneficial for plants to enhance disease-resistant capacity, realizing that chemical fertilizers and pesticides are not used, removing the residuals of the chemical fertilizers and the pesticides on lands and agricultural products, developing organic agriculture, producing green watermelon, hot pepper, cuke, tomato, and the like and increasing the economic incomes of agriculture, and is an agricultural practical technology which has the advantages of saved investment, quick effect and easy popularization.