96results about How to "Overcoming utilization" patented technology

The invention relates to a port warehousing logistics technology, in particular to a bulk material yard unmanned stacking / reclaiming technology. Firstly, a database is established; secondly, operation instructions, automatic stacking / reclaiming operation modes and control instructions for automatic stacking / reclaiming operations are generated through input operation kinds of goods and the planning work amount; thirdly, the relevant instructions are sent to a central control PLC and then transmitted to the corresponding local stacker / reclaimer PLC through the industrial network; fourthly, the local PLC controls the operation of all components of the stacker / reclaimer to complete the local operation control. At the same time, a material stack laser scanning device is used to scan the material yard condition, and the scanned result will then be transferred to a central control processing unit through the industrial network; fifthly, the central control processing unit achieves the stack type scan data processing of the stacker / reclaimer to generate new instructions which will then be sent to the corresponding local stacker / reclaimer PLC; sixthly, a handle operating panel arranged inside a central control room can be taken as a backup means of manual operation under special circumstances. The invention can be applied to large-scale raw material yards, such as ports, wharfs, open warehouses, mine stacking yards, as well as iron and steel enterprises.

The invention relates to a full-automatic bulk cargo storage yard stacking and taking method applied to large port wharfs, truck stations and open storages. According to the method, when a stacking and taking machine works, an operating driver for operating and monitoring is not needed in a cab of the stacking and taking machine and a person for control and operation of the whole process is also not needed in a field industrial personal computer on the basis of fully ensuring the utilization rate of a stock yard and exerting the stacking and taking capacity and other functions of the stacking and taking machine. After the field industrial personal computer acquires an operation task from a management system, optimal calculation and security inspection are performed according to the condition of the stock yard and the state of the stacking and taking machine, and related stacking or taking mode information is automatically generated; and then the system automatically sends related control instructions to a programmable logic controller (PLC) corresponding to the local stacking and taking machine, and the stacking and taking machine performs unmanned automatic stacking and taking operation of the whole process. Therefore, the method overcomes the defects of low automation degree of the conventional bulk cargo storage yard, high labor intensity of operators, low working efficiency and low field utilization rate.

The invention discloses a schedule requesting method, network side equipment, terminal equipment and a system and belongs to the technical field of communication. The method comprises the steps that a first sharing resource for SR is configured, and first information messages are sent to a large amount of terminal equipment; the SR on the first sharing resource is received; and a second sharing resource of uplink data is distributed for the terminal equipment, or a special resource of the uplink data is distributed for one piece of the terminal equipment. The network side equipment comprises a configuration module, a receiving module and a distributing module. The terminal equipment comprises a receiving module, a requesting module and a sending module. The system comprises the network side equipment and first terminal equipment. Uplink data resource waste is avoided, the using rate of the uplink data resources is improved, and the sending success rate of the uplink data is improved.

The invention discloses a high strength and toughness 3Y-TZP composite ceramic and a preparation method thereof. The 3Y-TZP composite ceramic consists of 3Y-TZP, a SiC crystal whisker and Sr2Nb2O7; and the preparation method of the 3Y-TZP composite ceramic comprises the steps of preparing and mixing Sr2Nb2O7 powder, ball milling, profiling, degumming and sintering. The composite ceramic is obtained by sintering the SiC crystal whisker and a Sr2Nb2O7 ferroelectric material second-phase addictive which are introduced into the 3Y-TZP. The ceramic material with high strength and toughness can be obtained by adjusting the contents of the SiC crystal whisker and the Sr2Nb2O7 and optimizing a microwave sintering process under the synergistic effect of reinforcing by the SiC crystal whisker and toughening by the Sr2Nb2O7 piezoelectric second phase. The invention has reasonable components and simple preparation process and simultaneously achieves the effects of strengthening and toughening by adopting a synergistic technology of reinforcing by the SiC crystal whisker and toughening by the Sr2Nb2O7 piezoelectric second phase. In addition, the invention is applicable for industrial production, effectively improves the mechanical property of the 3Y-TZP ceramic and widens the application field of the 3Y-TZP ceramic.

The invention relates to a stereoscopic development three-dimensional experimental device of a heavy oil reservoir. The stereoscopic development three-dimensional experimental device of the heavy oil reservoir comprises a three-dimensional rock core model, a constant temperature box, a steam generator, a temperature and pressure monitoring system, constant flux pumps and an intermediate container. Vertical well connectors are arranged on an upper cover plate of the three-dimensional rock core model, and horizontal well connectors are arranged on the side face of the three-dimensional rock core model. A mixture of high-alumina cement and quartz sand is filled into an inner cavity of the three-dimensional rock core model, and the three-dimensional rock core model is further respectively provided with temperature monitoring interfaces, pressure monitoring interfaces and saturated oil holes. The first constant flux pump is connected with the steam generator, the steam generator is connected to an inlet in the lower end of a first piston container, and an outlet in the upper end of the steam generator is connected with one horizontal well connector of the three-dimensional rock core model. An outlet in the upper portion of a second piston container is connected with the intermediate container, and the intermediate container is connected to the saturated oil holes in the upper cover plate of the three-dimensional rock core model. The stereoscopic development three-dimensional experimental device of the heavy oil reservoir integrates indoor experiments of three well pattern structures of SAGD, driving and draining combination and gravity drainage assisted steam driving, the experimental well pattern structures can be switched, and convenience is provided for indoor physical simulation of stereoscopic development of heavy oil.

The invention provides a control system, valve base control equipment and a submodule integration method. Valve base control equipment consists of two symmetric screen cabinets, wherein each screen cabinet is provided with a power supply unit, a current control unit and a bridge arm control unit; and controllers of the valve base control equipment, a control system and a submodule are connected with one another through optical fibers. All communication interfaces are in a CRC (Cyclic Redundancy Check) check based optical fiber serial communication mode of a reverse Manchester encoding form, so that data throughput is greatly increased, system control time delay is reduced, and real-time control and protection functions of a modularized multi-level flexible direct current valve can be finished. In the method, a hardware structure of the current control unit and the bridge arm control unit is adopted, so that system-level current balance control and valve-level capacitive voltage balance control are clearly divided, and the requirements for modularized multi-level real-time control are met.

The present invention provides a single-effect heat pump / double-effect cooling absorption set and a combined heat, electricity and cold supply system, and belongs to the field of afterheat utilizing and refrigerating technology. The integrated single-effect heat pump / double-effect cooling absorption set is mounted in a thermal power plant, and the exhaust of the steam turbine is connected to the high pressure generator of the integrated set and used as the driving energy for heating and refrigerating. The integrated single-effect heat pump / double-effect cooling absorption set operates either in single-effect heat pump mode for heating in winter or in double-effect cooling mode for refrigerating in summer. The present invention has the comprehensive advantages of saving in energy, low power consumption, being environment friendly, etc.

The invention relates to a long-acting slow-releasing codonopsis pilosula special fertilizer for radix codonopsitis, a preparation method and an application thereof. The codonopsis pilosula special fertilizer contains carbamide, double superphosphate or diammonium phosphate, potassium sulfate, fertilizer long-acting agent and medium trace element, wherein the fertilizer long-acting agent is NAM, and the medium trace element is any one or a combination from Ca, Mn and Zn. The long-acting slow-releasing codonopsis pilosul special fertilizer can overcome the defects of low fertilizer utilization ratio, poor persistence of fertilizer effect, inconvenient application and the like in the prior art, can realize one-off fertilization in the production process of codonopsis pilosula, and has the advantages of convenient application, high fertilizer utilization ratio, good persistence of fertilizer effect and the like.

The present invention provides a long-acting humic phosphate fertilizer and its preparation method. Said invention adopts the cheap coal humic acid and general quick-acting phosphate fertilizer and markes them produce chemical reaction under the action of accelerator and complexing agent to prepare the invented long-acting phosphate fertilizer. Said invention adopts an unique chemical reaction tomake the HA-P compound formed by said chemical reaction can effectively inhibit the fixation of fast-effective phosphorus and can reduce said fixation by above 16%, under the condition of identificalfertilizer application or reducing said fertilizer application as compared with general phosphate fertilizer said HA-P can raise yield by about 10%, and the utilization rate of P can be raised by 10 percentage points.

The invention discloses an archive management model construction method and system based on a knowledge graph, and the method comprises the steps: obtaining an archive text in a computer readable format, recognizing the minimum knowledge units in the archive text, and forming the semantic relation among all knowledge units based on the correlation of all minimum knowledge units; establishing a dynamic file multi-dimensional association model through a knowledge graph based on semantic relations among the knowledge units; according to the dynamic archive multi-dimensional association model, establishing an archive knowledge graph semantic model which can be recognized by a computer through an editing tool and a modeling language, using archive knowledge alignment and knowledge disambiguation to carry out knowledge fusion on archive knowledge, enabling the archive knowledge to mutually mapped with an archive knowledge organization model, and enabling semantic association to be subjectedto knowledge updating and replacement through a knowledge reasoning process. According to the method and system, the multi-dimensional association model and the knowledge fusion technology are established by identifying the knowledge unit with the minimum identification, so that the semantic association degree and the utilization rate of the archives are improved.

The invention discloses a processing method and a processing device for big data and a terminal. The method comprises the following steps of collecting the big data in internet; performing structured processing on the big data; using the structured data obtained by the structured processing. According to the scheme provided by the invention, the defects of high processing difficulty, large occupied space, low utilization rate and the like in the prior art can be overcome, and beneficial effects of low processing difficulty, small occupied space and high utilization rate are realized.

The invention discloses a controller device and a control method of a new energy power-supply system; the controller device comprises a boost module (1), a voltage reduction module (2), a diode (3), an automatic switch (4), a boost driving module (5), a voltage reduction driving module (6) and a sampling control module (7), wherein the sampling control module (7) is used for sampling voltage signals and current signals respectively from an input point (A) and an output point (B) of the boost module (1) as well as an output point (C) of the voltage reduction module, and after processing and operation, the sampled voltage signals and current signals are sent into the boost driving module (5) and the voltage reduction driving module (6), so that the automatic switch (4) can be controlled to be switched on or off; when the input voltage Va of the input point (A) of the boost module (1) is lower than the set value Vr, the input voltage is boosted; and when the input voltage Va is higher than the set value Vr, the controller device is shut down and stops working. The invention is capable of improving the utilization rate of a direct current (DC) source and the conversion efficiency, and is compatible with an input withdrawal type DC source.

The invention relates to a method for making a soil fertilization prescription diagram, a soil precise fertilization prescription diagram made according to the method and application in the aspect ofsoil precise fertilization. The method at least comprises the following steps: collecting soil data: collecting a soil sample at a soil sampling point, recording the latitude, longitude and number ofthe soil sampling point, and investigating field planting information; Wherein the soil data are arranged, the content of soil nutrients in the soil sample is analyzed, and the fertilizing amount required for achieving the target yield is predicted according to an agricultural model; And processing the soil data: importing the soil data into a GIS (Geographic Information System) for spatial interpolation processing to obtain a vector soil fertilization prescription diagram. According to the method and the application of the soil fertilization prescription chart, the problems of low fertilizerutilization rate, high production cost, cultivated land damage and the like in existing agricultural production are solved, the production cost is greatly reduced, the production benefit is improved,and the purpose of cultivated land protection is achieved.

The invention provides a continuous production process for ultra-pure hydrogen peroxide, comprising the following steps: mixing the industrial hydrogen peroxide material with the modified active carbon; then classifying filter by microfiltration membrane and ultrafiltration membrane in sequence; the filtrate is pumped into the distillation column formed by a plurality of columns connected in series; adding metal ion complexing agent into the primary column; performing reverse osmosis on the semi-finished products out of the column before filtering by nanofiltration membrane to get ultra-pure hydrogen peroxide products. The device comprises the following parts: a raw material chute, an active carbon pre-mixer, a microfiltration and ultrafiltration filter, a distillation column formed by a plurality of columns connected in series, a reverse osmosis device, a nanofilter, a finished product receiver, a pump and a shaft; wherein, the raw material chute outlet is connected with the active carbon pre-mixer inlet; the microfiltration and ultrafiltration filter outlet is connected with the pump, the outlet of which is connected with the inlet of the distillation column formed by a plurality of columns connected in series; the outlet of the distillation column formed by a plurality of columns connected in series is connected with the inlet of the reverse osmosis device, the outlet of which is connected with the shaft; the outlet of the shaft is connected with the inlet of the nanofilter, the outlet of which is connected with the finished product receiver.

The invention discloses an electronic computer with air filtering and monitoring functions. Available space in a machine case is utilized for containing a component with the air filtering and monitoring functions, the air filtering and monitoring functions are organically combined by taking the electronic computer as a carrier, ultrafine filter films are adopted on the lower portion of a front panel of the machine case or / and a second side panel of the machine case to be used as air filtering media, information processing and network communication functions are utilized for performing intelligent control and humanized prompt on the air filtering function and effect, a detection head of a temperature measuring element is arranged beside a computer CPU, the computer enables the temperature change amplitude to be compared with the set value in real time, and intelligent monitoring and replacement prompt of the filter screen blocking condition can be achieved. A melt electrostatic spinning method or a water base environment-friendly solution electrostatic spinning method or other methods can be adopted for manufacturing hollow filling material ultrafine fibers of a filter screen cup and a filter screen plate, the toxic action does not exist, the hollow position of the filter plate can be directly filled with the output fibers, the product machining technological process is reduced, production time is saved, and production cost is reduced.

The invention provides a method of rapidly manufacturing a thermoelectric device. The method comprises the following steps of 1) preparing a raw material; 2) according to a needed electrode pattern and a thickness, using a selective laser fusion technology to print a electrode powder on an insulation substrate (1); 3) using the selective laser fusion technology to print p-type and n-type thermoelectric compound powders into p-type and n-type thermoelectric arms on an electrode layer 1 acquired from the step 2) respectively; 4) using the selective laser fusion technology to print the electrode powder on the p-type and n-type thermoelectric arms so as to acquire an electrode layer 2, wherein the electrode layer 2 connects the p-type and n-type thermoelectric arms; and 5) covering an insulation substrate 2 on a surface of the electrode layer 2 so as to acquire the thermoelectric device. In the invention, a thermoelectric material powder is used and the selective laser fusion technology is adopted; through a layered manufacturing technology, the thermoelectric device is printed; tedious intermediate links during a traditional thermoelectric device manufacturing technology process are avoided; and problems that a yield and a raw material utilization rate are low in a traditional welding assembling technology are overcome.

The invention discloses an energy-saving type highlight non-trace injection mold temperature control system, including a mold temperature machine part, a router control unit, a heating part, a water-cooling part, a gas blowing part, and a water replenishment part. The invention adopts adjustable water injection capacity high-temperature water storage tank at the heating part heat source link of the system, adds a high-temperature booster pump, a superheater, and recycled heat gain bypass for energy storage and concurrent heating; adopts a pressure reducing valve for pressure reduction direct recovery of 175 DEG C, 0.9MPa high-temperature waste heat in the waste heat recovery link; in the water-cooling part cold source link, adopts cooling water tower to make 16 DEG C cold water, and is cooled by high-pressure water pump high speed injection mold; and a corresponding control implementing unit is provided in the control unit mold temperature machine, so that the invention overcomes problem and insufficiency of the existing technology like large energy consumption and low heat energy use ratio, the provided energy-saving type highlight non-trace injection mold temperature control system achieve the object of improving heat energy use ratio, saving energy and reducing consumption under the precondition of satisfying the equal process effect.

The invention provides a method for preparing regenerated fruit cultivating bagging outer bag paper by using waste fruit cultivating bagging paper. The method comprises the following steps: cutting up the recycled waste fruit cultivating bagging paper, then adding boiling water, adjusting pH value, adding Al2(SO4)3, soaking, pulping, adding carbon black powder and grinding, thus obtaining paper pulp A; injecting the paper pulp A into a machine chest A, storing paper pulp prepared from fiber raw materials in a machine chest B, respectively adding fillers, sizing agents, water repellent agents and wet strength agents to the machine chest A and the machine chest B and uniformly stirring; and making and forming paper by using the paper pulp in the machine chest A and the machine chest B, laminating, forming, squeezing, dewatering and drying. The method has the advantages that the usage amount of raw wood pulp can be greatly saved, after pulp grinding treatment, the binding force between the carbon black and fibers in the paper pulp is still strong, as long as little carbon black is added, the high non-transparency requirements can be satisfied, and therefore, the problem that when lots of carbon black is applied in in-pulp dyeing, poor working environments of production workshops, the low utilization rate of the carbon black, the high production cost and the like are caused, is solved.

The invention discloses a method for synthesizing an N-substitued benzo-isothiazolone derivative. The method comprises the following steps: using 2, 2'-dithiodibenzoic acid and triphosgene as raw materials to carry out acylating chlorination, reacting 2, 2'-dithiodibenzoyl chloride with an amine compound to obtain an amide compound, and then performing disproportionation cyclization reaction on the amide compound and an oxidant in a micro-channel reactor under alkaline conditions to obtain the N-substitued benzo-isothiazolone derivative. The synthesizing method has the advantages of 98% above selectivity, 62% above raw material conversion rate, 54% above yield rate, 99% above product purity, strong technical path operability, safe and simple operation process, stable product quality and high yield rate and is suitable for industrial production.

The invention relates to a wavelength-allocation-based three-dimensional optical on-chip network router communication system and method. The communication system employs a photoelectric mixing type 3D mesh network topological structure and a novel seven-port clog-free optical router capable of realizing multi-wavelength communication; and when the system is applied to a three-dimensional optical on-chip network, no wavelength conversion is needed. Because of utilization of the optical router, the consumed number of optical devices like micro ring resonators and waveguides and the like is reduced. Besides, according to the communication method, when a node of each layer sends out an optical signal, the employed wavelengths are identical; and optical signals with all wavelengths can be received at all layers, so that problems of severe network congestion, low link utilization rate, and limited expansibility due to utilization of single wavelength communication by the existing optical on-chip network architecture can be solved. Therefore, with the system and method, the network congestion probability can be reduced; the communication delay can be reduced; and the throughput capacity and network saturation point can be improved.

The invention discloses a method for producing a compound fertilizer by using fermentation glutamate extraction waste liquor, comprising the following steps of: a, evaporating and concentrating the fermentation glutamate extraction waste liquor at a temperature of 40-150 DEG C so that the content of solid in condensed slurry reaches 40-99%; b, cooling the condensed slurry until the temperature reaches 20-120 DEG C; and c, pelleting, cooling, solidifying and shaping the materials obtained in the step b to obtain the compound fertilizer. The method can overcome the defects of poor environment-friendly property and low use ratio of recovery resources in the prior art, and has the advantages of good environment-friendly property, good product performance, wide applicability and high use ratio of recovery resources.

The invention discloses a biosynthesis method of caffeic acid phenethylester by means of transesterification. The caffeic acid phenethylester is prepared by reacting caffeic acid alkyl ester with phenylethyl alcohol in an ionic liquid by taking the ionic liquid as a reaction medium and lipase as a catalyst, the caffeic acid alkyl ester and the phenylethyl alcohol are added at a molar ratio of 1:(1-40), the lipase is added according to the molar ratio of the caffeic acid alkyl ester to the lipase of 1:(1-40), the ionic liquid is added according to the volume ratio of the phenylethyl alcohol to the ionic liquid of 1:(5-50), reaction temperature is 40-90 DEG C, oscillation rotation speed is 120-300 rpm (revolutions per minute), and reaction time is 10-72 hours. The transesterification method provided by the invention takes the ionic liquid as the reaction medium, is capable of increasing the solubility of a substrate with a product, improving the catalytic activity and reaction efficiency of an enzyme and shortening the reaction time, is simple in operation, mild in conditions, high in product yield, and environmentally-friendly, and has good application prospect.

The invention discloses a laser illuminator capable of continuously regulating an illumination angle in a large scale and a regulating method thereof. The laser illuminator comprises a laser for emitting lasers, and is sequentially provided with a short-focus lens and a homogenizing device; the laser, the short-focus lens and the homogenizing device are sequentially arranged on the same optical axis, the optical axis is further sequentially provided with a positive lens and a negative lens, and the positive lens can move along the optical axis forwards and backwards. The laser illuminator capable of continuously regulating the illumination angle in the large scale and the regulating method thereof, disclosed by the invention, utilizes a design scheme that the positive lens is arranged in the front of the negative lens, thus problems that a laser illuminator in the current market is hard to compatibly regulate the illumination angle and has lower utilization ratio of light energy are overcome, a vision angle of a camera and a light supplementing angle of an illuminator can be totally matched, and a light supplementing distance can totally meet a pickup distance of the camera in the market.

The invention discloses a water treatment device combining multiple physical methods. The water treatment device is characterized by comprising a water treatment unit (1), wherein the water treatment unit (1) comprises an ultrasonic, ultraviolet and ozone combined reactor (2) and a plasma generator (3), and a water outlet of the ultrasonic, ultraviolet and ozone combined reactor (2) is connected with a water inlet of a Y-shaped reactor (6) through a liquid pump (4) and a liquid flowmeter (5); the top end of the ultrasonic, ultraviolet and ozone combined reactor (2) is communicated with the plasma generator (3) through a second gas circulating pipeline (42). According to the water treatment device combining the multiple physical methods, sewage is treated by comprehensively utilizing methods of ultrasonic, ultraviolet, ozone, plasma, TiO2 catalysis and the like; besides, the problems of large occupied area, high energy consumption, long single treatment time, low utilization rate of active matters in plasma and the like of a wastewater treatment device in the prior art are further solved.

The invention discloses a biological tissue terahertz imaging method, system and equipment based on multiscale entropy. According to the method, the information of whole terahertz time-domain spectroscopy signals is utilized, and the entropy value of each point on the detected biological tissue sample on different time scales is obtained; the entropy value on a certain scale is selected, or the entropy values on multiple scales are added together, so that a terahertz image of the detected biological tissue sample is reconstructed. By means of the method, the limitations that a traditional biological tissue terahertz imaging method only uses the spectroscopy information of a certain time or frequency point are overcome, and imaging contrast among different samples is improved.

The invention discloses a surfacing welding type roller shell of a bowl type coal mill, the surfacing welding type roller comprises a tapered roller shell parent body, a large end and a small end of the tapered roller shell parent body are respectively provided with an annular bulge, the height of the annular bulge at the large end is greater than the height of the annular bulge at the small end; the outer surface of the roller shell parent body is provided with a roller shell surfacing welding layer, the roller shell surfacing welding layer extends from the annular bulge at the large end to the annular bulge at the small end; the roller shell surfacing welding layer is divided into four sections, the sum of the axial size of a first surfacing welding section located at the large end of the tapered roller shell parent body and the annular bulge at the large end accounts for 1 / 3 the axial size of the roller shell parent body. According to the practical roller shell wearing characteristics of the bowl type coal mill during grinding of raw coal containing more coal ores, pyrite, quartz sand and the like, the shape of the roller shell surfacing welding layer can be inrationally determined, and by use of a sectional surfacing welding method, the wear resistance of a surfacing material can be fully exerted, and the service life of the roller shell wear parts of the bowl type coal mill can be effectively improved. The invention also discloses the sectional surfacing welding method of the roller shell surfacing welding layer.

The invention discloses a method for treating potassium feldspar according to the sub-molten salt method to prepare potassium carbonate. The method comprises the following steps: potassium feldspar reacts in a sub-molten salt NaOH liquid-phase medium, wherein the mass ratio of the NaOH solution to potassium feldspar power is (4:1) to (6:1); acidizing is carried out after reaction, so as to obtain a mother liquid containing potassium; purified sodium carbonate and potassium carbonate products are obtained after acidizing, filtering, and evaporative crystallization are conducted on the mother liquid. The reaction temperature is 145 to 210 DEG C; the potassium dissolution rate is higher than 98 percent. The method for extracting soluble potassium from potassium feldspar has the advantages that the defects in the conventional process are overcome; potassium, aluminum and silicon in potassium feldspar are comprehensively utilized; the energy consumption is low; the process is simple; environmental pollution is avoided; a new way for decomposing and deep processing of middle-low grade potassium feldspar is found.

The invention discloses a fruit and vegetable nutrition regulator, a preparation method thereof and a usage method thereof. The fruit and vegetable nutrition regulator comprises the following materials or elements in part by weight: 25 to 30 parts of Mg, 4 to 5 parts of B, 5 to 6 parts of Mn, 8 to 10*10<-2> parts of Mo, 2 to 5*10<-2> parts of SiO2, and 3 to 5*10<-2> parts of amino acid. The preparation method for the fruit and vegetable nutrition regulator comprises the following steps: mixing and hydrolyzing a mixture of compounds containing magnesium, boron, manganese and molybdenum elements respectively or simultaneously and a protein source, and then mixing the hydrolyzed product and silicon dioxide colloidal solution to form the fruit and vegetable nutrition regulator. The usage method for the fruit and vegetable nutrition regulator comprises foliar fertilization. The fertilizer makes up the blank of the field aiming at the properties of soil and the nutritional requirements of crops in the Pearl River Delta region; a final product of the fruit and vegetable nutrition regulator contains certain oily substances so that the fertilizer solution can effectively stay on the leaf surface and the defect of harming or blocking pores of leaves does not exist. The preparation method has the advantages of simple and convenient preparation process, low cost, high production efficiency and strong economic benefit, and is suitable for large-scale production.

The invention belongs to the technical field of a fertilizer. The invention discloses a biochar-based selenium-rich fertilizer used for camellia sinensis. The fertilizer comprises 40-50 wt% of selenium-rich biochar, 30-40 wt% of a selenium-rich food waste fermented fertilizer, and 3-8 wt% of super-absorbent polymer, with the balance being quartz sand. The selenium element exists in an organic selenium manner, so that in production, processing and application processes, the selenium element is minimum harmful to related persons. The problem that after a selenium-rich fertilizer in the prior artis applied, the selenium content in soil is uneven, crops, such as camellia sinensis, have absorption obstacles, and the utilization rate is not high is overcome. The selenium-rich fertilizer is noteasy to be dissolved in water, and doesn't lose efficacy after being flushed with rain / irrigation water. The selenium-rich fertilizer can improve soil acidification, optimizes soil structure, improvessoil quality, and has the function of clearing, mitigating, and passivating heavy metal in soil.