31results about How to "Ensure output" patented technology

The invention discloses a frost-less air-source heat pump hot water unit and a proportional-integral-differential control method for the same. The proportional-integral-differential control method includes performing computation according to received air temperature and humidity parameters, received air pressure parameters and received surface temperature parameters of an evaporator when outdoor temperature parameters which are transmitted by a temperature and humidity sensor and are received by a computation controller are lower than 0 DEG C, controlling the opening of an electronic expansion valve according to a computation result and regulating the surface temperature of the evaporator by means of increasing or reducing the opening of the electronic expansion valve so that the surface temperature of the evaporator is constantly higher than a frost formation point; and enabling a silicon-controlled power regulator to judge a suction superheat degree of a compressor according to received suction temperature and suction pressure of the compressor, increasing or reducing the power of an electric heater and maintaining that the suction superheat degree of the compressor only varies within a set value range. The frost-less air-source heat pump hot water unit and the proportional-integral-differential control method have the advantage that adjustment for the opening of the electronic expansion valve is matched with adjustment for the power of the electronic heater, so that the purpose of maintaining safe and efficient running of a system is achieved.

The invention provides a standardized planting technology of polygonatum. The planting technology at least comprises the steps of seed reserving, seed breeding, breeding environment selecting, seedbed processing, greenhouse constructing, managing in seedling growing, managing in a seedling stage and a dormancy period and the like. According to the standardized planting technology of polygonatum, standardized planting of the polygonatum, particularly polygonatum sibiricum red, can be achieved, various optimized technological conditions in the planting process are determined, and quantity and quality are ensured.

The present invention provides a method for reducing converter hot metal single consumption. According to the present invention, the following conditions are adopted as the standard conditions: the Si content in the hot metal is more than or equal to 0.4%, the actual hot metal temperature T is more than or equal to 1380 DEG C; each ton of the iron is added with 180-200 kg of scrap steel; when theT is more than or equal to 1320 DEG C and less than 1380 DEG C, the treatment of silicon preparing is firstly performed, then the treatment of carbon preparing is performed, and the scrap steel is added according to the ratio when the ratio of the hot metal meets the standard conditions; when the T is more than or equal to 1280 DEG C and less than 1320 DEG C, each ton of the iron is added with 150-175 kg of the scrap steel after the ratio of the hot metal meets the standard conditions by the silicon preparing treatment and the carbon preparing treatment,. With the present invention, the combined temperature compensation manner of the ferrosilicon and the coke is adopted, such that the converter carbon temperature at the end point is basically coordinated so as to ensure the stability of the final quality of the hot metal; the use amount of the scrap steel is 20% of the total amount of the converter hot metal, such that the hot metal single consumption of the converter can be substantially reduced, the production cost is reduced when the price of the scrap steel is less than the price of the hot metal; the resource shortage can be effectively released during the hot metal shortage process, the production scale and the performance rate of the contract can be ensured.

The invention discloses a compound fertilizer special for hickories. The compound fertilizer special for the hickories is prepared from, by weight, 30%-40% of organic fertilizer, 8%-12% of urea, 15%-20% of monoammonium phosphate, 20%-30% of potassium nitrate, 1%-2% of borax, 1%-2% of copper sulfate, 1%-2% of zinc sulfate, 0.8%-1.2% of ferrous sulfate, 0.1%-0.5% of gamma-polyglutamic acid and the balance auxiliary. The organic fertilizer is obtained by mixing duck manure, straw, hickory nut shells, rice chaff and an EM bacterial fermenting agent through fermentation, and the auxiliary is obtained by mixing attapulgite powder and modified cassava powder. According to the compound fertilizer, the organic matter content is larger than or equal to 15 wt%, the sum of the content of nitrogen, phosphorus and potassium is larger than or equal to 30 wt%, the content of nitrate nitrogen is larger than or equal to 4 wt%, the compound fertilizer can effectively improve soil properties, optimize ecological environment, facilitate growth of the hickories, enhance the tree vigor and gain stress tolerance, and the multiple purposes of environment friendliness, production increasing and effect increasing are achieved.

An engine and an engine-driven working machine which enable blow-though prevention of an uncombusted air-fuel mixture and control of the number of times of combustion, stabilize operation during idling, and ensure output and acceleration performance during working are provided. A two-cycle engine having: a piston; a crankcase in which scavenging passages are formed; and a cylinder in which scavenging ports communicated with the scavenging passages and an exhaust port for discharging a combustion gas are formed. In the two-cycle engine, at least two or more systems of the scavenging passages having mutually different opening/closing systems are formed in the crankcase.

A morchella esculenta cultivation method includes steps: strain selection; sowing pretreatment; sowing, to be specific, sowing morchella esculenta in a facility greenhouse at a temperature below 20 DEG C in November every year; nutrient bag placement; fruiting management, to be specific, regulating soil and air humidity in fruiting to keep soil humidity in a range of 65%-75% and air humidity in arange of 85%-95%; morchella esculenta harvesting. By morchella esculenta interplanting in the facility peach orchard greenhouse, the idle land in the greenhouse is used completely, the land utilization rate of the facility peach orchard greenhouse is increased by 20%-30%, a morchella esculenta cultivation environment is evidently improved, morchella esculenta yield and quality are guaranteed, andeconomic benefits of the peach orchard greenhouse are increased. In addition, soil in the facility peach orchard greenhouse is improved, soil fertility is improved, fertilizer consumption is reduced,and yield increasing and income increasing are realized.

The present invention discloses a fagopyrum tataricum tea processing method which comprises the following steps: taking fagopyrum tataricum and removing impurities; soaking the fagopyrum tataricum; steaming and boiling the soaked fagopyrum tataricum with controlled temperatures; oven-drying the steamed and boiled fagopyrum tataricum and controlling the water content at 40-50%; decorticating the oven-dried fagopyrum tataricum, removing the fagopyrum tataricum shells, and retaining the fagopyrum tataricum cores to obtain the fagopyrum tataricum rice; oven-drying the fagopyrum tataricum rice until the water content is less than 20%; and frying the dried fagopyrum tataricum rice with controlled temperatures to obtain the finished products. The fagopyrum tataricum tea processing method can improve the rutin content, wheat flavor and mouthfeel of the fagopyrum tataricum tea finished products.

The invention discloses a method for preventing longicorn stem borers of a camellia oleifera abel forest. The method comprises the following steps: carrying out prevention in an egg stage, a larval phase and a pupal stage of larvae or adults wintering in host plant roots and stems or in suffered trunks, and during the time from December to January of next year when fertilizers are applied to the wintering period; adding nicotine or an organic compound fertilizer accommodating nicotine complexing agent components into a base fertilizer or an additional fertilizer of camellia oleifera abel; directly applying the base fertilizer into a planting hole; directly applying the additional fertilizer to the periphery of a tree body in a manner of spreading, and digging up soils to cover the fertilizer. The method is simple, goal-oriented, strong in operability, environment-friendly, effective and practical, can effectively and directly carry out prevention in the occurrence period of the longicorn stem borers, prevents the stem borers from damaging the trunks and the stems of the camellia oleifera abel forest, reduces the risk of insect damage occurrence to a certain degree, effectively restrains the risks of yield declining and quality deterioration caused by insect damage, guarantees the health, yield and quality of the camellia oleifera abel forest and has good economic benefits, social benefits and ecological benefits.

The invention discloses an automatic control system for an aerator of an aquaculture pond, which comprises the aerator, and is characterized in that the system is composed of monitor terminals, a data server, a wireless programmable logic controller, and dissolved oxygen sensors, wherein the aerator and the dissolved oxygen sensors are connected with the wireless programmable logic controller respectively; the wireless programmable logic controller is connected with the data server for communication through the base transceiver station (BTS); the data server is communicated with the monitor terminals to transfer data; a plurality of dissolved oxygen sensors are distributed in the aquaculture pond to collect dissolved oxygen of water in the aquaculture pond; the wireless programmable logic controller controls the aerator to conduct oxygen supply for the aquaculture pond. The system effectively reduces the manual intervention through a model of automatic control for the aerator, so that the aquaculture water is always maintained above a standard dissolved oxygen value, the aquaculture yield and success rate are ensured, and the labor intensity of an operator and the cost required by manufacturing are lowered.

The invention relates to a strawberry planting method, in particular to a method for changing strawberry substrate culture into soil culture. The strawberry planting method comprises the following steps that 1, seedlings are selected; 2, a culture substrate is prepared; 3, the seedlings selected in the step 1 are cultivated in the culture substrate prepared in the step 2, wherein the cultivation time of the culture substrate is 30-35 days; 4, strawberry plants are taken out, and root systems are cut to reach 8-10 cm; 5, the strawberry plants in the step 4 are transferred for nutrient soil cultivation; 6, the time for nutrient soil cultivation is 60-75 days, and a first fertilizer is applied every day; 7, a second fertilizer is applied in the third day of the 60-75 days; 8, fruits are harvested.

The invention provides a method for identifying and evaluating aphid resistance grades of alfalfa varieties. The method comprises the steps of indoor aphid resistance identification and evaluation ofthe alfalfa varieties, field aphid resistance identification and evaluation of the alfalfa varieties, comprehensive evaluation of aphid resistance of the alfalfa varieties and aphid resistance mechanism research of the alfalfa varieties. Different methods are adopted indoors and in fields to research the aphid resistance of the alfalfa varieties, and then the two methods are comprehensively evaluated to obtain the aphid resistance grades of the different alfalfa varieties. When aphids eat alfalfa, an aphid resistance mechanism of the alfalfa varieties is analyzed by detecting external morphological characteristics, physiological and biochemical indexes and electrophysiological changes of the alfalfa varieties, reference can be provided for planting the alfalfa varieties in different geographical environments, the yield and quality of the alfalfa in regions are ensured, and the planting cost of the alfalfa is greatly reduced.

The invention relates to a microbial fermentation device, in particular to a fermentation tank overflow collecting, separating and recycling device which comprises a fermentation tank and an exhaust pipe on the fermentation tank. The device is structurally characterized in that the device comprises a vapor-liquid cyclone separator and a centrifugal separator, the vapor-liquid cyclone separator is connected between the exhaust pipe and an exhaust pipe outside the tank, a liquid collecting pipe is connected on the lower portion of the vapor-liquid cyclone separator, the centrifugal separator is arranged in the liquid collecting pipe, and a motor drives the centrifugal separator to rotate. By the aid of primary separation of the cyclone separator and secondary separation of the centrifugal separator, separation, collection and backflow fermentation broth overflowed and foam carried by the fermentation broth can be timely and simultaneously achieved, so that the fermentation broth is cultured and propagated under good process condition, and yield and quality of microbial varieties are ensured.

The invention discloses a compound feed for dairy cattle and a preparation method of the compound feed. The preparation method comprises the following steps: drying jerusalem artichoke straws until the water content of the jerusalem artichoke straws is below 10-20%; respectively pulverizing the jerusalem artichoke straws, bean pulp and corn; evenly mixing jerusalem artichoke straw powder, bean pulp powder, corn powder, glucose, calcium carbonate, calcium hydrophosphate, salt, a sweetening agent, a flavouring agent, methionine, antimicrobial peptide, cellulose-degrading enzymes and a core material; and feeding the evenly mixed material into a granulator for granulating to obtain the compound feed for the dairy cattle. After the dairy cattle are fed with the compound feed for the dairy cattle, the somatic number in milk can be reduced remarkably, mastitis of the dairy cattle can be prevented effectively, and therefore, the compound feed has quite high popularization and application value.

A needling mechanism of a single-spindle single-needle-area needling machine comprises a frame, a transmission shaft component, a needling part, first balancing mechanisms and second balancing mechanisms. The transmission shaft component comprises at least one crankshaft set. Each crankshaft set comprises a left connection shaft, a first balancing crankshaft, a needling driving crankshaft, a second balancing crankshaft and a right connection shaft. Projections, on a projective plane vertical to an axis of each left connection shaft, of the axis of the corresponding left connection shaft, a boss center line of the corresponding first balancing crankshaft, a boss center line of the corresponding second balancing crankshaft and a boss center line of the corresponding needling driving crankshaft locate at the center and three tops of an equilateral triangle. First rocker arms of the first balancing mechanisms are connected onto bosses of the first balancing crankshafts in a sleeved manner. Second rocker arms of the second balancing mechanisms are connected onto bosses of the second balancing crankshafts in a sleeved manner. Third rocker arms of lifting driving mechanisms are connected onto bosses of the needling driving crankshafts in a sleeved manner. The needling mechanism of the single-spindle single-needle-area needling machine has the advantages that stable running of the transmission shaft component can be kept during high-frequency needling, and vibration and shaking of the needling machine are reduced greatly.

A fluid-driven medical or dental handheld device includes a head, the head including a housing and a impeller rotatably mounted in the housing. The housing defines a receiving chamber for receiving the impeller, a main air inlet and an air outlet being defined in the housing and communicating with the receiving chamber. An inner surface of the housing surrounding the receiving chamber defines a plurality of grooves, the grooves being arranged at intervals along a circumferential direction of the housing. The grooves reflect rotating airflows directed to the grooves to change directions and speeds of the airflows to form interference airflows, which can effectively reduce the rotation speed of the head at idling, while ensuring the torque output of the head during grinding teeth.

The invention provides a multi-point-station automatic water spraying tin refining and crystallization device, and belongs to the technical field of crude tin refining of tin metallurgy. The multi-point-station automatic water spraying tin refining and crystallization device comprises a tank body, a spiral feeding mechanism, a heating device, a water spraying device and a crude tin pot. Accordingto the multi-point-station automatic water spraying tin refining and crystallization device, five sections of different temperature zones are set for the tank body of a tin refining crystallizer, a PLC device is set, the rotating speed of a feeding spiral and the water spraying time and the water spraying amount of each nozzle are set, local spraying can be carried out on the position, corresponding to each section of the temperature zone, of the tank body according to actual conditions, the local influence caused by the temperature fluctuation can be avoided, stable operation of continuous crystallization of the crude tin can be realized, materials in the continuous crystallization machine are balanced and stable, the crystallization effect is good, and the product quality and the yield are ensured. By arranging a dust collecting device, water vapor and raised dust generated in the process can be pumped away and processed, then the labor intensity of workers is reduced, and the on-site operation environment is improved.

The invention provides a whole water-soluble nitrogen fertilizer with a relatively high pelletizing rate. The whole water-soluble nitrogen fertilizer respectively comprises the following raw materials in percentage by weight: 20%-41% of magnesium sulfate heptahydrate, 19%-30% of carbamide, 20%-30% of ammonium sulfate, 11%-20% of anhydrous sodium sulfate and 0.1%-0.3% of added DA-6, wherein the anhydrous sodium sulfate is served as a raw material component of the fertilizer; on the one hand, the content of sulfur elements contained in the fertilizer is increased due to the addition of the anhydrous sodium sulfate, so that the sulfur elements of about 20% by weight are provided for crops; on the other hand, the anhydrous sodium sulfate as a pelletizing adhesion agent realizes different effects of water absorption and water loss in the pelletizing process, the drying process, the cooling process and the like of production, so that a proper liquid phase quantity needed by the production is ensured, the dispersion and adhesion of granules are effectively equilibrated, the effect of enhancing the roundness, uniformity and surface smoothness of the granules is achieved, the pelletizing rate of the fertilizer is obviously enhanced, and double indexes of output and quality in the production of the whole water-soluble nitrogen fertilizer are ensured.

A production method for euproctis pseudoconspersa nuclear polyhedrosis virus belongs to the technical field of microbial pesticide production. The production method comprises the following technological steps: 1) large-scale breeding of larva; 2) virus propagation; 3) virus collection; and 4) virus extraction. The production method comprises the following beneficial effects: firstly, skin allergy caused by toxic hair of euproctis pseudoconspersa is prevented, because the probability of euproctis pseudoconspersa toxic hair contamination is substantially reduced by exchanging forage in a fume cupboard and collecting euproctis pseudoconspersa dead bodies, and allergy is effectively avoided; secondly, the virus production yield is improved, by employing potted tea trees for producing overwintering spawns, the hatching rate of the overwintering spawns is substantially improved from 10-15% to 65-80%, so that first-generation larva breeding number and virus productivity in next year are ensured; and also, the virus dried dead body collection method is employed, helps to reduce the loss of virus during collection, and is improved in efficiency by 52.7% and in virus productivity by 38.8% compared with a conventional collection method.

The invention discloses an organic tea planting and management method, which belongs to the technical field of tea planting management, and comprises seedling raising period management, seedling management before and after transplanting, seedling management in a growth period and seedling management in a picking period. The seedling raising period management comprises the following steps: S1, performing seedling raising period management according to a method for quickly raising tea seedlings in a numerical control greenhouse; s2, tea land selection and land preparation; s3, fertilizing before ditching and field planting; s4, transplanting nursery stocks; s5, management after seedling planting; 6, carrying out topdressing and pest removal; s7, carrying out picking and pruning; according to the ecological organic tea planting and management method, chemical agents are not used for pest control, reasonable configuration is achieved, sustainable development is achieved, reasonable management is carried out when the ecological environment protection requirement is met, the growth of tea trees is guaranteed, the tea yield is increased, and meanwhile the quality is guaranteed.

The invention discloses a method for efficiently utilizing feritlizer water with application of autumn rainwater in winter for a small-scale mountain apple orchard. The method comprises the following steps: (1) mixing corn straw and flue-cured tobacco straw, bundling the straw into material bundles with the diameter of 25 cm and the length of 40 cm, and soaking the material bundles in a 1%-2% lime aqueous solution for 10-12 hours; (2) when base fertilizer is applied in autumn, flatly laying 2-3 material bundles at the bottoms of fertilization ditches or fertilization holes, covering the material bundles with the base fertilizer, and covering the topmost layer with surface soil; (3) covering the surface soil with a film or gardening ground cloth in time so as to reduce soil moisture evaporation; and (4) timely supplementing water and nutrients to the fertilization holes by using a 0.2% urea and 0.3% monopotassium phosphate aqueous solution and 100 g of calcium magnesium phosphate fertilizer. By using the polymer water-retaining agent, autumn rainwater, especially a small amount of rainwater at the end of autumn and the base fertilizer applied in autumn can be absorbed as far as possible, fertilizer efficiency is slowly released in winter with extremely low rainfall, and the effects of saving labor, water and fertilizer are achieved.

The invention discloses a heat supply progressively increasing type ignition heat-insulating furnace which comprises a furnace body and a burner component, wherein the burner component is installed on the furnace body; the burner component comprises a first row of burners and a second row of burners which are sequentially arranged along the heading direction of a trolley in the furnace body; and the heat value of the fuels led into the second row of burners is higher than the heat value of the fuels led into the first row of burners. The furnace of the invention has the advantages of simple and compact structure, low cost, wide application range and the like, the sintering quality can be improved and the production and operation cost can be reduced by using the furnace of the invention.

The invention discloses a method and a system capable of spraying dilute sludge into a kiln. According to the method, dilute sludge is sprayed into a decomposition furnace in a mist manner, stink produced by the dilute sludge is introduced into the decomposition furnace, and the dilute sludge is subjected to impurity removal before being sprayed. The system comprises the decomposition furnace communicated with a cement kiln, a sludge sprayer is arranged at a feeding port of the decomposition furnace, the feeding port of the sludge sprayer is communicated with a discharging port of a sludge bin through a sludge delivery pump, and a high-pressure air inlet of the sludge sprayer is communicated with a high-pressure air source. The drying process of the dilute sludge is simple, the investment is low, nitrogen oxide emission can be reduced significantly, the drying time is short, the dilute sludge disposal efficiency is high, the floc structure formed by spraying the dilute sludge into the kiln directly is avoided, decrease of the local temperature of the cement kiln and deterioration of the combustion working condition are prevented, and the yield and quality of clinker can be guaranteed. The atomization effect on the dilute sludge is good, the service life of the sludge sprayer can be prolonged, and installation is simple and convenient.

The invention discloses a motorcycle part welding tool fixture. The motorcycle part welding tool fixture comprises a bracket; adjustable first and second limiters are mounted at the two ends of a worktable, and are mounted on the worktable; and the middle part of the worktable is empty. First dowel pins and second dowel pins are mounted at the two ends of a first right end limiting plate and a second right end limiting plate; the first right end limiting plate and the second right end limiting plate are mounted on the worktable; a concave pressing plate is at the top of a right end pressing device, and is mounted on a right end buckle piece; the right end buckle piece is hinged to the right end of the worktable; an internal hexagonal screw and a pressing piece are arranged on a left end limiting device; the internal hexagonal screw is fixed on the pressing piece, and is mounted on a left end buckle piece; the left end buckle piece is mounted on a U-shaped support base; and a left end support base is provided with a first left end limiting plate and a second left end limiting plate. The motorcycle part welding tool fixture has the advantages of simple operation, high positioning precision and good stability, and can synchronously guarantee the product machining efficiency and quality.