57results about How to "Improve competitive advantage" patented technology

The invention discloses an O2O platform user portrait construction method based on deep learning, and relates to the technical field of deep learning user portrait construction. According to the O2O platform user portrait construction method based on deep learning, group classification is performed on users through a classification and regression tree, user behavior features are identified, a user portrait decision tree model is constructed, user behavior data are predicted, user feature vectors are generated, and an O2O platform user portrait is constructed based on the user feature vectors. And analyzing the matching degree between the subsequent behavior data of the user and the O2O platform user portrait, and through comprehensive analysis with service indexes, obtaining a platform user portrait optimization index, establishing a real-time updating and iterative optimization mechanism, updating a user portrait decision tree model, optimizing the O2O platform user portrait, and improving the user portrait precision. The O2O platform is helped to better understand the behavior pattern and preference of the user, so that the marketing strategy is optimized, the platform is helped to better meet the user demand, and the user loyalty and the market share are improved.

The invention relates to the technical field of cloud manufacturing, in particular to a real-time order receiving and scheduling method and system for a flexible job shop. Comprising the following steps: extracting related data from a production site, and constructing a flexible job shop environment model according to the related data; an agent decision model is constructed, a corresponding DQN algorithm model is constructed, and the DQN algorithm model comprises an order acceptance DQN and a scheduling DQN; on the basis of interaction with the intelligent agent, training an order acceptance DQN algorithm model and a scheduling DQN algorithm model, the training of the order acceptance DQN being completed on the basis of the scheduling DQN having a good effect; and deploying the trained order acceptance DQN and the scheduling DQN to make a decision. According to the method, comprehensive fine consideration of the external production capacity and the expected available production capacity of the actual production workshop is added, a high-customization order-oriented order acceptance decision and production logistics collaborative scheduling real-time comprehensive scheduling model is established, the deviation of real-time acceptance decision is reduced, and more efficient and scientific management and control of the production process are realized.

The invention discloses an energy carbon data analysis method and system, electronic equipment and a computer storage medium, and belongs to the technical field of large models. The method comprises the following steps: receiving an energy carbon data analysis request of a user side; analyzing the energy-carbon data analysis request through a pre-constructed large language model to obtain an overall task corresponding to the energy-carbon data analysis request; decomposing the overall task into a plurality of sub-tasks, wherein each sub-task processes data analysis in a specific field; calling a corresponding sub-model for each sub-task, and obtaining an intermediate result output by the sub-model; and fusing the intermediate results to obtain an energy-carbon data analysis result corresponding to the energy-carbon data analysis request. Through the method, the technical problems that a traditional decision analysis method is single in data source and limited in dimension are solved.

The invention belongs to the field of live-action three-dimensional modeling, and discloses a live-action three-dimensional modeling method and device based on cloud native task batch processing scheduling, and the method comprises the steps: calculating aerial triangulation encryption data of a three-dimensional modeling task, and carrying out the block processing of the aerial triangulation encryption data through a task segmentation module; the task scheduling module adjusts operation and task issuing of sub-tasks in real time according to available computing resources of the cloud architecture system, and optimizes the utilization rate of distributed computing resources in real time; the task state monitoring module monitors the execution state of the sub-task in real time; the subtask processing module performs corresponding generation on the image data in each block, and uploads a generation result to a storage resource pool after operation is completed; and after all the subtasks are operated, calling a model merging module to perform overall merging. According to the method, the live-action three-dimensional modeling task and the cloud native task batch processing architecture are combined, operator-level scheduling of the live-action three-dimensional modeling function is achieved through the cloud native system architecture and the resource container pool, and cloud native system resources are efficiently utilized.

The invention belongs to the field of data processing, and particularly relates to an intelligent service analysis optimization method and system based on a multi-dimensional data warehouse, and the method comprises the steps: obtaining the data attribute information of a to-be-recognized object for the to-be-processed object loaded in the data warehouse; inputting the data attribute information into a dynamic data analysis model, and performing data identity recognition on the to-be-recognized object to obtain target identity information of the to-be-recognized object; based on the target identity information, performing identity tracing on the to-be-identified object by adopting a dynamic tracing model to obtain target tracing information of the to-be-identified object; and based on the target identity information and the target traceability information, triggering a target data service for the to-be-identified object to complete intelligent service analysis of the to-be-processed object. According to the method, the data identity recognition and traceability capability can be improved, powerful support is provided for intelligent service analysis, and the method is dedicated to realizing data-driven decision making.

The invention discloses a simple preparation method of a high-performance film composite forward osmosis membrane, and belongs to the technical field of water treatment. The preparation method comprises the following steps: firstly, selecting a basement membrane with an ultra-large aperture as a supporting layer of the TFC to relieve a concentration polarization phenomenon and provide a larger interface specific surface area for the growth of polyamide; then, a surfactant is introduced into the water-phase solution to further promote the improvement of the effective water delivery area of the membrane. And finally, carrying out interfacial polymerization reaction on the surface of the substrate membrane to synthesize the TFC-FO membrane with higher performance. The TFC-FO membrane prepared through the method has excellent water flux and interception performance, the FO performance of the TFC-FO membrane is continuously improved along with increase of the pore diameter of the supporting layer, and the application potential of the TFC-FO membrane in the technical field of water treatment is greatly improved.

The invention belongs to the technical field of SXPS extruded insulation board production and processing, and discloses SXPS extruded insulation board extrusion equipment and method.The SXPS extruded insulation board extrusion equipment comprises an extruding machine body and a conveyor, an annular base and a bearing platform plate are arranged on one side of the conveyor, a fixing module and a multi-angle cutting module are installed on the bearing platform plate, and the multi-angle cutting module comprises a connecting frame; the connecting frame is connected with an angle adjusting assembly, a cutting knife is slidably installed on the connecting frame through a winding assembly, a reset assembly is jointly arranged between the cutting knife and the connecting frame, the fixing module comprises a U-shaped ring and an upper supporting plate, the U-shaped ring is slidably connected with the annular base through a telescopic assembly, and a notch is formed in the bearing platform plate in a penetrating mode; the upper supporting plate is slidably connected into the notch in the vertical direction, a hydraulic rod is jointly installed between the bottom of the upper supporting plate and the bearing platform plate, and a material pushing assembly is arranged on the conveyor; the extrusion molding device aims at solving the technical problem that an existing extrusion molding device in the background technology cannot meet the requirements of customers for customized production.

The invention relates to the technical field of organic chemistry, in particular to a propynyl butyl carbamate synthesis process, which comprises the following steps: firstly, adding a catalyst into a propargyl alcohol metering tank, uniformly stirring to obtain a mixture A for later use, then adding n-butyl isocyanate into a reaction container, starting stirring, then dropwise adding the mixture A into the reaction container, and reacting for 2-3 hours to obtain a mixture B; after dropwise adding is finished, replacing the reaction container with nitrogen, preserving heat for 6-18 hours after replacement is finished, sampling and analyzing, transferring the materials in the reaction container into a decolorizing container, adding activated carbon in a stirring state for decolorizing, transferring the materials into a filtering system for filtering after decolorizing is finished, and filtering to obtain a filtrate; the method comprises the following steps of: adding a filtrate into a finished product tank, and automatically packaging to finish the synthesis of the propynyl butyl carbamate, so that the technical problems that a rectification process is needed in the process in the prior art, and the propynyl butyl carbamate becomes unstable and is easy to decompose under a high-temperature condition, so that the content of the product is reduced are solved.

The utility model provides an insulating forearm mechanism suitable for an aerial work platform with the voltage smaller than or equal to 66KV. The small arm mechanism comprises an insulating main arm, two insulating pull rods parallel to the insulating main arm and a working bucket installed at the free end of the insulating main arm, one end of the insulating main arm is rotationally connected with the arm support mechanism through a first connecting frame, the other end of the insulating main arm is rotationally connected with a connecting support, and the two insulating pull rods are arranged above the insulating main arm in parallel; one end is rotatably connected with the arm support mechanism through a first pull rod rotating shaft, the other end is rotatably connected with the connecting support through a second pull rod rotating shaft, a small arm variable-amplitude cylinder is arranged between the first pull rod rotating shaft and the first connecting support, and the working bucket is rotatably installed at the free end of the insulating main arm through a leveling support. According to the utility model, any insulation distance of the working bucket can be ensured to be more than 300mm, so that the working bucket achieves an insulation effect; the utility model can flexibly act when working in a specific or narrow space, and is simpler in structure and easy to weld.

The present invention relates to an enrichment and cultivation method and device for anaerobic ammonia oxidizing bacteria, which is to inoculate activated sludge containing anaerobic ammonia oxidizing bacteria into an anaerobic membrane bioreactor, start water inlet, carry out enrichment and cultivation, collect gas generated during the cultivation process, mix it with hydrogen and then pass it into the reactor to carry out enrichment and cultivation of anaerobic ammonia oxidizing bacteria. The present invention realizes rapid enrichment and cultivation of anaerobic ammonia oxidizing bacteria, effectively slows down membrane pollution and prolongs the membrane service life.

The invention relates to the technical field of liquid crystal handwriting board control circuits, in particular to a handwriting erasing control circuit for a liquid crystal handwriting board. The limitation and defects of a handwriting erasing control circuit of a liquid crystal handwriting board in the prior art are overcome. Comprising an input filter capacitor (300) used for filtering input voltage of a button battery or a lithium ion battery; the PCB metal winding parasitic inductor (301) is used for performing energy storage conversion on the input current; the application-specific integrated circuit control chip unit (302) is used for performing boost conversion control on the input battery voltage and outputting high voltage capable of meeting the handwriting erasing function of the liquid crystal handwriting board; the output filter capacitor (303) is used for filtering the high voltage which is output through boost conversion and can meet the handwriting erasing function of the liquid crystal handwriting board; and the touch switch (304) is used for controlling the handwriting erasing control circuit of the liquid crystal handwriting board to start boosting conversion work.

A foldable magnetic device for a door curtain comprises a plastic magnet and an adhesive tape, and is characterized in that one side of the plastic magnet is adhered to the adhesive tape; two symmetrical surfaces of the plastic magnet are provided with grooves (112) which are symmetrical to each other; the production process is characterized by comprising the steps of manufacturing the plastic magnet and pasting the adhesive tape. The plastic magnet is manufactured in the mode that CPE and magnetic powder are mixed and vulcanized, and after vulcanization, the plastic magnet is manufactured through the manufacturing processes of tabletting, multi-layer laminating, cutting, magnetizing, notching and the like. The CPE is chlorinated polyethylene. The door curtain has the beneficial effects that the door curtain can be folded at will, is convenient to store, and can be repeatedly used for multiple times; environmental pollution and production resource waste caused by the fact that door curtains in the prior art cannot be reused are avoided, environmental pollution is reduced, and ecological development is promoted; the softness of the magnetic attraction edge of a curtain product can be improved, the magnetic attraction force is dispersed, the connection attraction force between curtains is moderate, and the service life of the door curtain is prolonged.

The utility model discloses an efficient plate labeling machine with an automatic decontamination mechanism, which relates to the technical field of plate processing equipment and comprises a labeling machine body and a transmission belt arranged on the labeling machine body. A protection shell is arranged on the right side of the upper end of the transmission belt, a plate body is arranged in the protection shell, a reciprocating sweeping mechanism is arranged on the protection shell, and a driving gear is fixedly installed at the output end of the motor. The utility model discloses an efficient plate labeling machine with an automatic decontamination mechanism. The driving gear and the driven gear are meshed with each other so as to drive the driven gear to rotate, the driven gear further drives the rotating shaft to rotate, the rotating shaft drives the sweeping rod to rotate along with the rotating shaft, the driving gear further drives the straight tooth rack to rotate, the straight tooth rack moves in the guide groove, and the straight tooth rack and the driven gear are meshed with each other. And the driven gear can move in a reciprocating mode, so that the plate body is repeatedly cleaned, and it can be ensured that dust on the surface of the plate is thoroughly cleaned.

A refrigeration system includes a condensing heat exchanger, a switching valve, an evaporating heat exchanger, an adsorption bed, and a compressor. The condensing heat exchanger, switching valve, and evaporating heat exchanger are connected sequentially via piping. The adsorption bed and compressor are both connected between the condensing heat exchanger and the evaporating heat exchanger. In the circulation loop of the adsorption bed, condensing heat exchanger, switching valve, and evaporating heat exchanger, the compressor can operate when the adsorption bed cannot produce gaseous working fluid. The refrigeration system can achieve working fluid circulation through the circulation loop of the compressor, condensing heat exchanger, switching valve, and evaporating heat exchanger, allowing the evaporating heat exchanger to continuously reduce the temperature of the heat-generating components.

The utility model relates to the technical field of imaging equipment, and particularly discloses handheld equipment and a focusing device, which comprise a shell, a focusing lens and a focusing component. Wherein the shell is provided with a through hole; the focusing lens is telescopically arranged on the shell along the optical axis direction; the focusing component is movably arranged in the shell, at least part of the focusing component is exposed out of the through hole, and the focusing component is connected with the focusing lens and used for driving the focusing lens to stretch out and draw back in the optical axis direction so as to adjust the focal length. According to the handheld device and the focusing device provided by the utility model, the internal space of the shell is fully utilized, the occupation of the external space of the shell is reduced, the overall size is further reduced, and thinning of the device is facilitated. Besides, the focusing component is hidden in the shell, and the focusing lens does not need to protrude out of the shell, so that the focusing lens is not easy to touch when falling off, and the performance reliability of the equipment is ensured. The integrality is high, no protruding special shape exists, the harmony and the visual sense are better, and the competitive advantage of the product is increased.

This utility model discloses a paper box structure with a reinforced plastic ring frame. Its main features include a box body and a lid, with the lid fitting snugly onto the box body. Both the box body and the lid include a base plate and a ring frame. The ring frame is vertically arranged around the base plate and has a rolled end and a folded end. The folded end extends continuously to form an inner lining wall, which is in surface contact with the ring frame. A slot is provided between the end of the inner lining wall and the rolled end for the base plate to be inserted, and the two are fixed together with an adhesive. The ring frame includes a continuously curved contour section, which includes a plurality of continuously arranged concave and convex edges. This utility model provides a paper box with a more diverse and richer contour shape and significantly strengthens the structural support of the ring frame.

The invention provides a short-process preparation method of an ultra-high-purity fluorine tantalic acid solution, which utilizes a hydrofluoric acid-sulfuric acid-MIBK combined system, adopts a tantalum-containing solution as a raw material, and realizes efficient preparation of the high-purity fluorine tantalic acid solution through the process steps of acid adjustment, extraction, acid pickling and tantalum removal. According to the preparation method, the production efficiency is improved, the production cost is reduced, the product quality and purity are remarkably improved, and reliable technical support and application prospects are provided for industrial production of the high-purity fluorine tantalic acid solution.

The utility model relates to the technical field of plush toys, disclose an anti-tearing plush toy, including the body, the one end of body is provided with head component, the other end is provided with tail component, the lateral wall of body is provided with the belt body component, the belt body component sets up between head component and tail component to strengthen the strength of body, the inside of body is provided with a plurality of connecting body, the utility model discloses the sewing of the sewing tape between the connecting body and the head part and the tail part is set up in the lateral wall of body, and the recessed position of sewing tape is provided with the connecting strip, thereby can utilize sewing tape and connecting strip to promote the strength of whole plush toy when the both ends of plush toy are subjected to the pulling, and then can promote the anti-tearing effect of whole plush toy, so that the plush toy can bear greater tearing force when children use.

The invention discloses a preparation method of abamectin wet powder, which comprises the following steps: dissolving an abamectin crude product by using methanol, carrying out concentration control, cooling and crystallizing, continuously dissolving and concentrating a secondary refined product by using methanol for further purification, slowly cooling at a low rotating speed to complete crystallization, carrying out filter pressing, and drying to obtain the abamectin wet powder. Continuously dissolving and concentrating a secondary refined product obtained after filter pressing by using methanol, purifying again, slowly cooling at a low rotating speed to complete crystallization, then carrying out filter pressing, continuously dissolving a secondary refined product obtained after filter pressing by using methanol, adding carbon, filtering and decolorizing, and slowly cooling at a low rotating speed to complete crystallization; and carrying out mother liquor filter pressing, stirring and washing and negative-pressure constant-temperature drying on the obtained filtered crystallization liquid to obtain an abamectin wet high-quality product with flowability. The production process provided by the invention effectively solves the problems of strong adhesiveness, small crystal and poor crystal form of the wet high-quality abamectin material, ensures that the flow velocity is stable, wall adhesion and caking are avoided when the wet high-quality abamectin material is used in subsequent automatic feeding and discharging equipment, and can effectively improve the production efficiency.

The invention belongs to the technical field of fuel cells, and particularly relates to a multi-metal series catalyst and a preparation method and application thereof. The multi-metal series catalyst is composed of two structures, wherein one structure is a transition bimetal-based hydrotalcite material and is of a sheet structure; and the other one is noble metal nanoparticles uniformly dispersed on the carbon material, and the average size is less than 10 nanometers. The prepared series catalyst is applied to sodium borohydride electrooxidation reaction, the bimetal-based hydrotalcite material is used as an active site for borohydride adsorption and preliminary oxidation, and the noble metal nanoparticles are used as an active site for further oxidation of a preliminary oxidation product of borohydride. As the anode catalyst of the direct fuel cell, the anode catalyst not only has high electron transfer number, but also shows relatively high power density. Compared with other common catalysts, the use amount of precious metal is low, the preparation method is simple and controllable, and high application value is shown in the field of direct hydroboron fuel cells.

The present invention provides an infrared bandpass filter structure formed by an alternating stack of a plurality of hydrogenated silicon aluminum layers and a plurality of lower refractive index layers, wherein the plurality of lower refractive index layers are an oxide, and the infrared bandpass filter structure has a passband that at least partially overlaps within a wavelength range of 800nm ​​to 1600nm, and the passband has a central wavelength, and the central wavelength has a magnitude shift of less than 11nm when the incident angle changes from 0° to 30°; an infrared bandpass filter is formed on a first side of a substrate, and an anti-reflection layer is formed on a second side of the substrate opposite to the first side; thereby, the sputtering efficiency can be improved to significantly reduce the manufacturing cost, and the warping of the film layer can be reduced to solve the problem of easy chipping of the corners during post-cutting.

The invention discloses a polypeptide-containing multifunctional organic-inorganic composite material as well as a preparation method and application thereof. The composite material is prepared by compounding organic matters such as waste containing lignin and water-insoluble polysaccharide, waste containing protein and the like and inorganic matters containing nitrogen, phosphorus and potassium through certain steps. The material has multiple functions of promoting plant growth, controlling nutrient release, absorbing and retaining water, reducing damage of saline-alkali soil to plants, passivating heavy metal ions and the like. The method has the advantages of easily available and cheap raw materials, no pollution in the production process, diversified product functions, convenience in use, high production efficiency, low cost, easiness in large-scale production and application and the like. The method is a new method for high-valued and large-scale utilization of wastes such as straws, can solve the problem of straw utilization, promotes agricultural production, protects the ecological environment, and has a wide application prospect.

The utility model discloses a biodegradable barrier film and a packaging material comprising the biodegradable barrier film. The biodegradable barrier film comprises a base material layer, a bonding layer and a barrier layer which are sequentially arranged, the base material layer comprises a supporting layer and at least one printing layer, the barrier layer comprises a heat sealing layer and a high barrier layer, and the high barrier layer is arranged between the bonding layer and the heat sealing layer; the supporting layer is paper or polyhydroxyalkanoate (PHA), the high-barrier layer is an aluminum-plated layer, an aluminum oxide-plated layer or a silicon oxide layer, and the heat sealing layer is biaxially oriented polyhydroxyalkanoate (BOPHA). The biodegradable barrier film has high barrier performance and can meet the requirements of food packaging materials, and meanwhile, due to the fact that the base material layer and the heat sealing layer can be degraded, pollution to the environment is small.

The present invention discloses a high-strength and toughness NbTaV-based medium-entropy alloy and a preparation method thereof. The raw materials are mixed according to atomic percentage to obtain a metal particle mixture; the metal particle mixture is vacuum-melted to obtain an ingot; the alloy is then cold-rolled at room temperature, and then subjected to a heat treatment process at an appropriate temperature to obtain an excellent strength-plasticity combination; the present invention uses a heat treatment process at an appropriate temperature to not only reduce the grain size to produce fine grain strengthening, but also produce solid solution strengthening and dislocation strengthening due to alloy design and processing, while the alloy still maintains a bcc matrix, thereby greatly improving the alloy plasticity while still having good strength. The alloy of the present invention has excellent room temperature mechanical properties. 50 Ta 25 V 20 The total elongation at break of the Ti5 refractory medium entropy alloy is increased by 470% to about 20%, while the yield strength is increased by 11% to about 787MPa and the tensile strength is increased by 15% to about 887MPa. Based on the above characteristics, the alloy of the present invention has a great competitive advantage in single-phase bcc high / medium entropy alloys and has great engineering application prospects.

The utility model relates to a soft cover magnetic control cosmetic mirror assembly which comprises a mirror body and a mirror cover, the mirror body comprises a substrate, a lens, a circuit board and two LED lamp panels, and the circuit board is integrated with a magnetic control element for controlling the LED lamp panels to be turned on and turned off; a first magnet is arranged on the plate surface of the base plate; the mirror cover comprises a fabric, a plurality of resin plates and a second magnet, the plurality of resin plates are distributed at intervals along the width direction of the substrate, the fabric is adhered to the surfaces of the resin plates through hot pressing to form the mirror cover, and one long edge of the fabric extends to form a folded edge which is fixed on the back surface of the substrate; the second magnets are embedded in the resin plate and correspond to the first magnets in position. According to the cosmetic mirror assembly for the sunshade lens plate, part of the lens can be opened according to needs, the sunshade plate can be operated more flexibly, the cosmetic mirror lamp can be adjusted in a touch control mode, the illumination function is richer, and the magnetic control soft cover is adopted so that larger cosmetic mirror glass can be achieved.

The invention provides a method for realizing one-step copper smelting of high-copper ore based on a flash converting furnace, which comprises the following steps: quantitatively adding copper matte and high-copper ore to a feeding conveying belt for quantitative proportioning, mixing the high-copper ore and the copper matte, grinding, drying, sorting, adding into a flash nozzle, and carrying out a series of physical and chemical reactions in the flash converting furnace to directly obtain crude copper; almost all iron and silicon in the high-copper ore, a small amount of copper enters slag, sulfur enters flue gas, and one-step copper smelting of the high-copper ore is achieved. The silicon in the high copper ore is utilized to ingeniously solve the problem that a small amount of quartz needs to be additionally added into the flash converting furnace, the slag type of the flash converting furnace is improved, the furnace condition is stabilized, and the service life of the flash converting furnace body is further prolonged. And on the other hand, due to the reasonable matching of the high copper ore and the copper matte, the productivity bottleneck caused by the influence of a flash smelting system on a flash blowing system can be broken through.

The invention relates to the technical field of data processing, in particular to a data discovery and identification method, which comprises the following steps of: scanning and identifying a data source in a network environment through a hybrid algorithm based on machine learning and deep learning, and extracting key characteristics of the data source by adopting an automatic characteristic engineering technology; the method comprises the following steps: acquiring data sources, storing the data sources in a characteristic library, classifying the data sources into structured data, semi-structured data and unstructured data by utilizing an adaptive classification algorithm in combination with fuzzy logic and a Bayesian classifier, automatically marking the data sources, performing quality evaluation on the classified data sources, generating a priority list, and storing the priority list into a database; data extraction, data conversion and data loading are carried out on the data sources with high priorities, and it is ensured that the integrated data has high consistency and high reliability. According to the method, intelligent discovery, accurate classification, dynamic evaluation and efficient integration of data sources are realized through a systematic process, and the method is suitable for data management and business decision support in a big data environment.

This invention discloses a color sorting device and method for purifying broken glass. The device includes a feeding device, a color sorting and separation device, and an air passage device. The feeding device vibrates and feeds the material to the color sorting and separation device, which screens the main purified material and impurities in one pass. The air passage device assists the color sorting and separation device in rejecting the determined material and sending it to the corresponding receiving bin. The color sorting device and method for purifying broken glass disclosed in this invention can improve the screening accuracy.

The present invention provides a packaged antenna module and a preparation method thereof, wherein the packaged antenna module comprises a rewiring layer, an antenna structure, a semiconductor chip, a third packaging layer and a packaged antenna connector, wherein the antenna structure comprises a connector window and at least a first antenna structure and a second antenna structure stacked on a second surface of the rewiring layer, and the packaged antenna connector is located in the connector window and electrically connected to the rewiring layer. The present invention reduces signal loss by electrically leading out the packaged antenna connector located in the connector window, and does not require the preparation of metal bumps electrically connected to the rewiring layer, and does not require the use of a flip chip process for electrical connection, thereby improving the flexibility of the packaged antenna module position layout, and further improving the overall competitive advantage of WLP AiP.

The application discloses a kind of zeolite molecular sieve for removing hexavalent chromium in wastewater and its preparation method, which comprises the following steps: mixing solution and stirring: all raw materials are placed into polytetrafluoroethylene lined stainless steel autoclave, then the polytetrafluoroethylene lined stainless steel autoclave is placed into ultrasonic cleaning machine for ultrasonic stirring, and slowly shakes during stirring process;Synthesis reaction: after stirring, the polytetrafluoroethylene lined stainless steel autoclave is tightened, the polytetrafluoroethylene lined stainless steel autoclave is placed into thermostat for constant temperature reaction;Sample removal: after constant temperature, the polytetrafluoroethylene lined stainless steel autoclave is taken out, the cover is rotated after cooling, the white lining is taken out, and is dried, to obtain molecular sieve.The application can solve the problems of complex process flow, huge energy consumption and inconvenient operation in the synthesis technology of existing molecular sieve.