284 results about "Daily production" patented technology

The invention provides a system and a method for safe filtering of an industrial control network. The system comprise a module docking station, a protocol processing module and a user interface subsystem that are sequentially connected, wherein the module docking station is connected with a network interface and used for achieving network communication, module monitoring and management and bottom layer preprocessing of a communication protocol; the protocol processing module is used for deblocking, analyzing, filtering and packaging an industrial control protocol based on a TCP / IP (Transmission Control Protocol / Internet Protocol); and the user interface subsystem is used for achieving module management configuration and status display. With the adoption of the system and the method, safety protection measures capable of being flexibly customized, expanded on line, and managed and maintained in real time can be provided for a user on the premise that the network structure of an industrial enterprise is not changed and the daily production is not affected, and the potential threat can be blocked according to the demand of an enterprise strategy, so that the network safety level of an industrial control system is raised greatly at a lower cost.

The invention relates to a method for measuring system air leakage rate of a sintering machine in metallurgy. The invention discloses a method for measuring the system air leakage rate of the sintering machine. The method comprises the following steps: firstly, by measuring charge level air speeds at different parts of a machine pallet of the sintering machine, the effective air quantity(Q[inlet]) entering a sinter layer is worked out, by measuring the air speed in a main duct in front of an electrostatic dust collector, the total air quality(Q[total]) pumped in the main duct by an air exhauster is worked out, and by the water content in mixing material, the content of the air converted into vapor is worked out; secondly, the air qualities(Q[total standard], Q[inlet standard] and Q[water standard]) at the standard state are converted all together; and finally, the air leakage rate(B) is worked out according to the formula. The measuring method has strong operability and can overcome the defects of inconvenient measurement, big measurement error and complex air analysis existing in daily production and the defect existing in prior art that the local air leakage rate can only be measured by the air leakage point air speed measuring method. In a word, the method has the advantages of easy operation, accurate measurement and good use effect.

A method of making a wall block and a mold box therefore. The wall block design maximizes the use of the mold box. The method produces wall blocks having a large surface area front face compared to the front face size of prior art blocks. The blocks have about one third more front surface area. This results in faster construction of walls and a faster construction sequence. The method of making the blocks makes efficient use of mold space and material, resulting in higher production yields and / or higher total daily production square footage.

The invention provides a well logging prediction method of shale gas horizontal well single well production capacity. The method comprises the steps of firstly conducting well logging of interval transit time, density and neutron porosity in a drilled horizontal well, and recording the penetrating depth of a horizontal well section and the corresponding vertical depth; then using formation density well logging and compensated neutron well logging information to calculate formation brittle mineral content; utilizing the three well logging curves of the interval transit time, the density and the neutron porosity which reflect formation porosity in the well to calculate the formation porosity; utilizing a method of inverting reservoir permeability through stoneley wave attenuation to solve formation permeability; utilizing an organic carbon content experiment measurement value a stone sample taken in a formation and density well logging to establish a relation to obtain a calculation formula of organic carbon content; utilizing the formation organic carbon content to calculate to obtain formation gas saturation; finally according to the formation brittle mineral content, the formation porosity, the formation permeability and the formation gas saturation to calculate to obtain the daily production capacity of single well shale gas.

The invention relates to an excellent Saccharomyces cerevisiae gxas02 and a method for carrying out scale production of ethanol by utilizing the Saccharomyces cerevisiae gxas02 as a production strain and adopting sugar cane juice as a raw material. The strain is vacuum freeze-dried and collected in China Center for Type Culture Collection with the collection No. of CCTCC NO: M208110, the collection date is July 19, 2008, the strain is the Saccharomyces cerevisiae by identification, the strain is applicable to fermenting the ethanol by using the sugar cane juice, with fast speed, low residual sugar content, high temperature resistance and alcohol resistance. A production technology adopts a single concentration continuous flow processing technology, the sugar cane juice which is pressed but not concentrated or diluted is directly fermented under the conditions without using yeast reuse and fixed yeast technology, the continuous operation is carried out on a production line with daily production capacity of 10 tons of the ethanol, the effect is good, the fermentation time is 12-16h, alcohol degree reaches 8.6-9.4(V / V) and the residual sugar is 0.2-0.3g / 100ml. The invention is characterized by convenient implementation, high equipment utilization rate, high ethanol concentration of fermented mash, high sugar utilization rate which is close to the theoretical value, and the like, thereby reducing the costs for producing the ethanol.

The invention discloses a multifunctional compound fabric resisting electromagnetic radiation and ultraviolet ray. The warp and the weft are formed by mixing silver-coated fiber and uvioresistant terylene; the arranging proportion of the silver-coated fiber to the unioresistant terylene in the warp and the weft is 1:1, or 1:2 or 1:3: the silver-coated fiber is distributed in a warp network and weft network type in the fabric so as to form a closed conductive loop; and the fabric has a double-tissue structure, or a double-layer exchanging structure, and double-layer tying tissue structure or multi-layer filing and multi-layer tying tissue structure. The multifunctional compound fabric has the advantages that under the condition of relatively low preparing cost, the fabric with high-efficiency effects of resisting electromagnetic radiation, ultraviolet ray, bacterium and the like can be produced, the production method is simple and convenient. The multifunctional compound fabric can be widely applied to daily life and daily production of people.

The invention discloses a mobile gas monitoring system and a method based on accurate positioning in underground coal mine. The system comprises: a mobile gas detector brought by people who enters a mine and used to detect gas concentration; a radio communication base station arranged in the mine and for determining a position of the mobile gas detector and receiving information about sensed gas concentration by carrying out radio communication with the mobile gas detector; a monitoring center server used to receive the information of the sensed gas concentration and information of the position of the mobile gas detector from the radio communication base station to carry out information management. The system and the method provided in the invention can be used for safety monitoring management of daily production in the coal mine to guarantee safe production in the coal mine, and also can provide basis for decision of coal mine cataclysm rescue, with the system and the method, rescue progress can be accelerated and post-disaster casualties can be minimized.

The invention discloses a large-curvature radioactive level horizontal drilling process and device includes drilling vertical well to oil layer, lowering the sleeve, drilling sleeve shoe, building up angle directionally, washing well, lifting the drill, lowering special sieve vessels, filling with gravels, decoupling the hanger for circulated well washing, lifting the hanger de-coupler and all drilling tools above, drilling other radial wells, etc. Through drilling a plurality of radial wells, the invention enlarges seepage area, expanding seepage range, increasing the daily production for single well and raises final recovery ratio, so as to achieve the purposes of making full use of energy, increasing economic benefits and benefiting the society.

The present invention provides an oil and gas well production decline analysis method and system. The method comprises: collecting daily production and accumulated production data; according to the daily production and accumulated production data, drawing a relational curve of daily production to material balance time, wherein the material balance time is a ratio of the accumulated production to the daily production of a time corresponding to the accumulated production, and by carrying out derivation on the relational curve of daily production to material balance time, drawing a feature line section, wherein the feature line section is a line section whose slope is a specific value; determining a flow field type according to a distribution condition of the feature line section of the relational curve of daily production to material balance time, and establishing a corresponding production decline analysis model according to the flow field type; and finally performing production decline analysis according to the production decline analysis model. According to the method provided by the present invention, commonly used production decline models are unified under the same determination rule, and adaptive analysis and selection of the production decline model are performed by flow field recognition, so that the technical problem of an indefinite prediction result caused by selecting a model blindly in the prior art can be effectively solved, and dynamic production prediction precision is improved.

The invention belongs to the technical field of profile control and water plugging, and particularly relates to a profile control and water plugging dynamic prediction method and system based on interwell connectivity. An inter-well connectivity model capable of simulating the oil-water dynamic state is established by utilizing an oil field daily production dynamic state and a material balance method, parameters such as inter-well connectivity conductivity, communication volume, water injection splitting and water injection efficiency can be obtained, and an inter-well dominant communication relationship is quantitatively identified; And based on the obtained communication relationship, the plugging agent plugging capability evaluation result is combined, flow treatment is carried out along the communication unit, and the method capable of rapidly simulating and predicting the profile control and water plugging dynamic state is established. Compared with the traditional digital-analogcalculation, the method is simple and reliable, and can be seamlessly jointed with the identification of a crossflow dominant channel, so that the overall decision of optimal selection, dynamic prediction and dosage optimization of the profile control well is realized, and the design and application of a field profile control scheme are guided.

The invention provides a method and a device for determining a leakage rate of an oil casing annulus of a gas well. The method comprises the steps of: acquiring basic data and annulus pressure relief data of the gas well, wherein the basic data of the gas well comprise an annulus wellhead pressure and an annulus protection liquid density; determining a gas temperature of a leakage point in an oil pipe and a gas pressure of the leakage point in the oil pipe based on the annulus wellhead pressure and the basic data of the gas well; determining a wellhead leakage rate based on the annulus pressure relief data and a surface pipeline hole leakage model; determining a gas well annulus leakage rate equation based on the wellhead leakage rate and the gas pressure of the leakage point in the oil pipe so as to determine the leakage rate of the oil casing annulus of the gas well. According to the method and the device for determining the leakage rate of the oil casing annulus of the gas well, the leakage rate of the oil casing annulus can be calculated by utilizing the daily production data of the gas well and the pressure relief parameters of the oil casing annulus, and the shortage that the leakage rate of the oil casing annulus of the gas well cannot be calculated currently is covered.

The invention discloses a method for qualifying liquid loading of a gas well for use in the development process of gas reservoirs and condensate gas reservoirs. Corresponding oil-water ratios at different time are calculated with daily production data of the gas well in order to obtain corresponding critical pressure gradients, and the critical pressure gradients are compared with a pressure gradient test curve for analysis. If the maximum value of the test pressure gradient curve surpasses the critical pressure gradient value, liquid loading in a shaft occurs; on the contrary, if the maximum pressure gradient value is lower than critical pressure gradient values, liquid loading does not exist in the shaft even the pressure gradient curve fluctuates. Critical pressure gradients under different oil-water ratio conditions are calculated through a substance balance state equation model and a critical pressure gradient model by using daily test data of the gas reservoirs and condensate gas reservoirs, and the critical pressure gradients are compared with the pressure gradient curve to judge whether liquid loading occurs in the shaft or not, so that various errors caused by direct manual qualitative analysis are avoided, and the accuracy of liquid loading judgment is increased.

The invention provides a tire vulcanizing production control system and an operation adjusting method. According to a vulcanizing production control process, a production online integrated control system and method are proposed to realize automatic management of vulcanizing production, realize operation planning and control system configuration, which meet vulcanizing production process requirements, increase the vulcanizing production efficiency as well as control and reduce energy consumption during batch production. The tire vulcanizing production control system comprises a database server, an application server, a client working station, an interface management server, an upper computer and a computer network. A technical parameter setting module, an algorithm parameter setting module, a production order information receiving module, a production process real-time data receiving module, a daily production planning module, an operation planning module, an operation planning result issuing module, a technical parameter loading module, a production process monitoring module, a primary adjusting module and a secondary adjusting module are arranged on the application server.

The invention relates to a fluid pipeline system utilizing a piezoelectric technology to generate electricity. The fluid pipeline system comprises an inner pipe and an outer pipe. The inner pipe and the outer pipe are both hollow cylinders in shape. The inner pipe penetrates through the outer pipe, the two ends of the inner pipe are exposed, the inner pipe and the outer pipe are coaxial, and helical blades are arranged inside the inner pipe and are fixedly connected with the inner pipe. A piezoelectric device is arranged on the inner wall of the outer pipe. Fluid passes through the inner pipe to push the helical blades, so the inner pipe rotates and extrudes the piezoelectric device on the inner wall of the outer pipe to generate charges and the charges are led out. By utilizing functions of water supply and water drainage in the daily life and production, the fluid pipeline system can combine an electricity generation device with daily life and production, combines the piezoelectric technology with fluid pipelines, solves the problem that a large water turbine power generation system can not be applied to the daily life and production, and brings convenience to the life of people. Compared with existing power generation equipment, the fluid pipeline system produces no pollution, is environmentally friendly, makes full use of the kinetic energy of fluid, achieves the purpose of making full use of energy resources, is small in size and can be applied to the daily production and life.

The invention discloses a Beidou satellite system-based tide level data transmission and control method. The Beidou satellite system-based tide level data transmission and control method comprises a data acquisition process and a data processing and publishing process, wherein the data acquisition process comprises the following steps of: sending a tide level data analog signal collected by a collector to a data A / D (Analog to Digital) converter, converting the tide level data analog signal to a digital signal through the A / D converter, and transmitting the digital signal to a first Beidou communication receiver; the data processing and publishing process comprises the following steps of: sending tide level data to a Beidou communication director of a control unit by the first Beidou communication receiver based on the Beidou satellite system; transmitting the data to a PC (Personal Computer) by the Beidou communication director; carrying out filtering, curve plotting and processing on the tide level data by the PC; generating a standard chart according to daily production requirements; connecting the Beidou communication director with the PC; determining a working state according to a tide level curve; and finally publishing the processed data to the public based on the Beidou satellite system. The Beidou satellite system-based tide level data transmission and control method is not restricted by a transmission distance, is capable of realizing efficient dispatching management of construction ships and improving the dredging construction efficiency.

The invention relates to a PLC simulation-based industrial control intrusion detection method and intrusion detection system. The system is composed of a PLC simulation module, a control object anomaly detection module and a controlled object anomaly detection module; the PLC simulation module is composed of a communication subsystem, an SCL language interpretation subsystem, an intermediate layer data cache subsystem and an execution engine subsystem; the communication subsystem is connected with an industrial control network; the execution engine subsystem is connected with the intermediate layer data cache subsystem; and the controlled object anomaly detection module is connected with the PLC simulation module. The intrusion detection system for a control object and a controlled object can be provided for a user under the premise that the structure of the industrial control network is not modified, and daily production is not affected, and therefore, the phenomena of false negatives and false positives are few, intrusion recognition is fast, and thus, the network security level of an industrial control system can be greatly improved with low cost.

The invention discloses a tire vulcanization production control system and an operative plan execution method. According to a vulcanization production control process, production on-line integrated control system and method are provided in the hope of realizing automatic management of vulcanization production and realizing operative plan formulation and control system configuration meeting the requirements of the vulcanization production process so as to improve the vulcanization production efficiency, and control and reduce energy consumption during batch production. The tire vulcanization production control system comprises a database server, an application server, a client working station, an interface management server, an upper computer and a computer network. A technological parameter setting module, an algorithm parameter setting module, a production order form information receiving module, a production process real-time data receiving module, a daily production plan formulation module, an operative plan formulation module, an operative plan result release module, a technological parameter loading module and a production process monitoring module are arranged on the application server.

The invention relates to tangential iso-curvature bending equipment in the process for producing a backing ring by utilizing a steel strip, which is applied to tangential iso-curvature bending of the steel strip subjected to coarse and fine die rolling in the process for producing the backing ring by utilizing the steel strip so as to wind the steel strip into a ring. The equipment comprises a vertical plate seat, a pressing wheel I, a pressing wheel II, a pressing wheel III and a circling rod driven by a motor, wherein the circling rod is vertically installed on the vertical plate base via a bearing seat. The equipment is characterized in that (a) a ring-shaped straight tooth on the circling rod is arranged in a ring-shaped groove of the circling rod and the groove depth is 1-2mm; (b) the rims of the pressing wheel I and pressing wheel II are provided with grooves; and (c) the pressing wheel I, the pressing wheel II and the pressing wheel III are respectively installed on the vertical plate seat via three combination mechanisms formed by screw rod adjusting slider mechanisms and screw rod adjusting slider seat mechanisms thereof. The equipment has the following advantages that: 1. the adjusting process is simple and flatness control is stable; 2. operation is stable, the daily production capacity is high and the production cycle is shortened by more than 40% compared with the existing production period; and 3. the varieties with different ring radii can be produced by the same equipment.

The invention provides nutritional soil for cultivating eggplant seedlings and a preparation method of the nutritional soil. The preparation method comprises the following steps: firstly, selecting fermented cow dung, fermented rice husk chicken manure and composted pleurotus ostreatus residues and other raw materials which are commonly used in daily production according to growth demands of the eggplant seedling stage; secondly, preparing special nutritional soil for cultivating the eggplant seedlings by multiple formulation screening experiments. The nutritional soil is economical and practical as well as is beneficial to growth of the eggplant seedlings; in addition, during the seedling cultivation period for two months or longer, spraying of fertilizer is not needed, and the eggplant seedlings vigorously grow; the nutritional soil is a better choice for cultivating the eggplant seedlings. At present, generally-applied cultivation matrixes in the world are peat and rock wool, but the two matrixes are expensive, peat resources are unrenewable, and the rock wool is non-degradable, therefore, all countries in the world are trying to study substitutes of the peat and the rock wool. At the same time, the fermented cow dung, the fermented rice husk chicken manure, the composted pleurotus ostreatus residues and the like are used, so livestock manure and agricultural wastes are enabled to be recycled, and replace the non-renewable peat, and further resource conservation and environment friendliness are facilitated.

The invention relates to the field of electric power industry informatization, and discloses a power plant mobile working system. The mobile working system comprises a mobile terminal which is used for acquiring an operation instruction and performing power plant business operation corresponding to the operation instruction; a mobile application management server which communicates with the mobile terminal and is used for receiving operation data generated by the mobile terminal in performing the business operation; and a power plant business information system which communicates with the mobile application management server and is used for storing the operation data. The handheld mobile terminal is introduced in daily production and management of the power plant to perform real-time data recording and business processing so that onsite operation and mobile work of power plant employees are facilitated and the construction content of the digital power plant can be enriched.

The invention discloses a rapid sedimentation method of sweet potato starch. The method comprises the following steps of: fermenting and culturing traditional fork-made yeast lysozyme into mother liquor; then, fermenting and culturing into biological viable enzyme fermenting stock serosity; and mixing with a filtered sweet potato starch stock solution to rapidly sedimentate. By the invention, the sedimentation time of starch can be rapidly shortened from traditional 24 h to 5 min, the whiteness of the starch is improved by 7 percent, the purity is improved by 4 percent, the powder yield rate is improved by 1.5-2 percent, the daily production efficiency is improved by 6-8 times, and the market selling price of the starch is increased by 27.8 percent.

The invention discloses an enterprise mobile social network system based on face recognition and belongs to a social system. The enterprise mobile social network system comprises a personnel information database system, a face recognition system and a web server; the personnel information database system is used for building a personnel information database in which face images and personnels have one-to-one correspondence relationships; the face recognition system is used for detecting face images and locating key feature points of the faces, after pre-processing, a back-end recognition algorithm is fed in, and the back-end recognition is used for extracting face features; the web server is used for allowing a user to log in after passing the authentication. The enterprise mobile social network system based on the face recognition has a face recognition and finding function and a face recognition optimizing function, changes the situation that the existing face recognition technology is only used for the authentication security field, introduces the increasingly sophisticated and practical face recognition technology into the daily production and life, enables social customs of people to be changed in a certain extent, and becomes a new highlight of the development of the mobile social network.

An information network based on a low-voltage distribution network is of a tree-shaped structure, and can be divided into the following different levels of network segments including the distribution transformer level (tree root), the yard level, the building level, the storey level, the household level, the room level, and the device level (tea leaves) from the root to the leaves, wherein according to the network segment of each level, upper nodes are connected with lower nodes through cable branches, a distribution transformer serves as the root node to induce the network, electric devices serve as leaf nodes to end the network, electrical information generated in the network such as voltage, current, power factors and harmonic waves are automatically collected and processed on line in the nodes of the network segments of all the levels, the nodes serve as information nodes and sources of distributed information of the network, information is transmitted vertically on the basis of branch cables in the network segments, the cables serve as physical channels of the information network, the low-voltage distribution network is informationized to serve as the information network as well, and the power supply and consumption process of the distribution network is informationized so that people can carry out on-line monitoring and management on the power supply situation through the low-voltage distribution network in the power utilization process of daily production and life.

The invention discloses a connector for a joint double offset ring ratchet spanner and a manufacturing method thereof. Because the connector is manufactured by a powder metallurgy technology, the problem that the connector is difficult to machine is solved, the dimensional accuracy of the connector and particularly the surface roughness of a semilunar groove are greatly improved to decisively prolong the service life of the connector, and the dimensional accuracy of the connector can be controlled in a range of 0.05mm. Moreover, the dimension of a countersunk hole of the connector is stably controlled, the subsequent assembly speed efficiency is improved by over 120 percent compared with the original efficiency, and the manufacturing method is superior to other manufacturing methods; and the manufacturing method is low in process cost, the raw material utilization rate is over 99 percent, energy consumption is low, equipment investment is 200,000 yuan, one person is needed, daily production is over 3,000 pieces by a two-cavity mold, a multi-cavity mold can be realized, and one mold with 16 cavities can be realized at most at present. The connector is assembled into a product according to the specified requirement and is subjected to series performance tests according to the requirements of American standard ANSI-2002 'tool performance test method', the torsion of the spanner is 1.4 times that of the American standard, and the service life of the spanner is over 2 times that of the American standard.

The invention discloses a bottle cap opener which comprises a driving device, a transmission device, a fixing device, a support frame, a cap clamp and a base, wherein the driving device and the transmission device are installed on a gear box, the transmission device is movably connected with the cap clamp, a fixing adjustment device is arranged below the cap clamp, and the fixing adjustment device and the gear box are installed on the base through the support frame. By the technical scheme of the invention, the damage to bottle caps and bottles in daily production process can be reduced, thereby reducing the production cost of enterprises.

The invention discloses a manipulator. The manipulator comprises a base, wherein a first mounting cavity is formed in the base; a first rotating motor is mounted in the first mounting cavity; a firstmotor shaft is mounted at a driving end of the first rotating motor, penetrates through the top wall of the inside of the first mounting cavity and extends to the upper side of the base; a mounting seat is arranged on the upper side of the base; the bottom wall of the mounting seat is fixedly connected with a first motor shaft; a plurality of rollers are symmetrically mounted on the bottom wall ofthe mounting seat; a first fixing arm is arranged on the top wall of the mounting seat; and a first mounting hole is formed in the top end of the first fixing arm. The manipulator is simple in structure and easy to implement; the manipulator is adjusted in various directions through multiple different driving modes; the most suitable driving mode is used for the different positions; the occupiedspace and manufacturing cost are greatly saved; demands of daily production can be met completely; meanwhile, the manipulator is convenient to operate; the factor of safety is high; and the enterprisecompetitiveness is improved.

The invention discloses a planting method capable of achieving all-year-round cumquat harvesting. The planting method includes a planting method for producing cumquat in regular time and a planting method for producing cumquat in delay time. The planting method for producing cumquat in delay time includes: planting, managing young tree fertilizer and water, removing flowers and fruit, applying autumn growth promoting fertilizer, promoting flower bud differentiation, promoting flowers and bearing fruit, applying fruit protecting fertilizer, applying fruit expanding fertilizer, pruning and shaping, controlling pests and diseases, applying the 'three-avoidance' technology, and harvesting. By the method, daily production of the cumquat in a whole year is achieved, the cumquat can be supplied the whole year, production area centralized selling dilemma is solved, and production benefits are increased.

The invention discloses an aquaculture information supervision method based on internet of things, Construct the county-wide aquaculture industry geographic information database, investigate the basicinformation of aquaculture farms and abattoir facilities, investigate the potential safety hazards and key prevention and control points in the daily production of aquaculture industry, sort out andintegrate the thematic data resources of aquaculture facilities, and form a data center of aquaculture facilities; by use of the intelligent transmission terminal, the data collected from the county-wide aquaculture industry geographic information database are uploaded to the county-level monitoring service platform through the Internet, and the production environment and management are digitallysupervised. GPS vehicle-mounted equipment equipped with a 4G communication module and video monitoring equipment are installed on the receiving vehicle to record and transmit the receiving trajectoryand video image in the vehicle, and the data are uploaded to the county-level monitoring service platform for monitoring through the Internet. The invention can monitor and trace the whole process ofaquaculture, slaughter, harvest and transportation, and achieve the purpose of monitoring the whole process from aquaculture to market.

The invention relates to the field of compound fertilizers, and particularly relates to a natural disease-resistant high-yield slow-release compound fertilizer which is prepared from the following raw materials in parts by weight: 10-15 parts of 1250-2000-mesh kieselguhr, 18-23 parts of monoammonium phosphate, 10-12 parts of potassium chloride, 15-18 parts of ammonium chloride, 3-5 parts of walnut green seedcase, 6-8 parts of boron-magnesium fertilizer, 2-5 parts of raw gypsum powder, 3-5 parts of ferrocene, 6-8 parts of Alexandria laurel leaf, 10-12 parts of horse manure, 3-5 parts of safflower Lycoris radiata aqueous extract, 6-8 parts of wood dust, 3-6 parts of poplar peel, 7-9 parts of calcium phosphate, 2-4 parts of tonka powder, 1-3 parts of sweet orange peel ultramicropowder, 1-3 parts of water-soluble lanolin, 5-7 parts of polyvinylpyrrolidone, 10-12 parts of gelatin, 2-3 parts of thiocarbamide and 4-5 parts of assistant. The compound fertilizer fully utilizes common cheap organic matters in daily production and life, lowers the production cost, improves the soil environment, and utilizes the kieselguhr and modified gelatin slow-release coating agent to form dual coatings on the nutrients, so that the fertilizer efficiency is more endurable, thereby reducing the inefficient loss of nutrients, effectively enhancing the yield and quality of the crops and enhancing the disease-resistant and antimicrobial capacities of the crops.