111results about How to "Meet industrial requirements" patented technology

The invention belongs to the field of steel coil rolling, and relates to a steel coil shape defect detection and recognition method based on target detection. A large number of steel coil shape pictures are obtained from the site to construct a coil shape defect data set, and the task of detecting and identifying the coil shape defects of the steel coil is completed in the traditional steel production industry by utilizing the currently advanced Faster-RCNN target detection algorithm with high identification precision and high detection speed, and meanwhile, the Faster-RCNN is subjected to model compression by pruning, so that the model can meet the industrial embedded requirements. According to the method, a modern intelligent detection technology is utilized, and the method is applied toindustrial production detection of the steel coil.

The invention relates to a selective hydrodesulfurization catalyst and a preparation method thereof. The catalyst takes alumina and a silicon-aluminum mesoporous molecular sieve containing an ordered mesoporous structure as carriers, takes cobalt and molybdenum as the active components and takes magnesium as an addition agent. The preparation method of the catalyst comprises: mixing the alumina and the silicon-aluminum mesoporous molecular sieve; adding sesbania powder and nitric acid, then carrying out mixing kneading, shaping, drying and baking on the mixture to prepare the compound of the alumina and the silicon-aluminum mesoporous molecular sieve; then the compound is treated by organic acid and loaded with the addition agent of magnesium as well as the active components of cobalt and molybdenum, then, aging, drying and baking are carried out on the mixture to prepare the catalyst. The catalyst shows excellent gasoline selectivity and hydrodesulfurization activity, low loss of product researching octane number and high liquid yield by inducing the porous structure and acidity of the modulating catalyst of the ordered mesoporous molecular sieve, inducing the acidity of a magnesium modulating catalyst and inducing the manual effect between an organic acid modulating carrier and the active components.

The invention discloses a covering material for immobilized in-situ remediation of nitrogen in bottom sediment and a preparation method of the covering material, belonging to the technical field of bottom sediment covering of surface water body. The covering material is the mixture of a powdery raw material and a binding agent, wherein relative to 1L of the binding agent constituting the covering material, the content of the powdery raw material is 1-2kg; the powdery raw material comprises the following components in parts by weight: 0-1 part of porous material, 0-8 parts of attapulgite clay and 6-30 parts of natural zeolite; the binding agent consists of an active material and an excitant; and relative to 1kg of the active material constituting the binding agent, the content of the excitant is 1-3L. According to the preparation method, the powdery raw material consists of natural materials such as zeolite, the binding agent consists of inorganic polymers, and the covering material is granulated and formed by an extruder and cured at room temperature. The covering material is a medium material with strong ion exchange capability and excellent biological load property and does not need to be sintered; and moreover, the covering material provided by the invention has the advantages of higher ammonium adsorption capability and lower cost as compared with the traditional materials.

The invention relates to the technical fields of aluminum-based composite materials and preparation thereof, in particular to a boron carbide particle enhanced aluminum-based composite material and a preparation method thereof. According to the composite material, aluminum alloy is used as a matrix; the mass percentage of boron carbide used as a wild phase is 2.5 to 30%; the boron carbide particles are distributed in the matrix uniformly. The specific preparation method comprises the following steps: mixing boron carbide powder and aluminum alloy powder; performing surface activation, plasma activated sintering and heat treatment to prepare a sintering test sample close to full density. The aluminum-based composite material prepared by the method has low sintering temperature, high density, small crystal particles and an excellent mechanical property, is simple to operate and high in controllability, and is a lightweight high-performance aluminum-based composite material.

The invention belongs to the technical field of removal of formaldehyde and discloses a nano-fiber membrane material capable of decomposing formaldehyde at normal temperature, and a preparation methodand an application of same. With carbonized MOFs being a formaldehyde catalyst, the material, compared with a conventional transition metal oxide, is large in specific surface area and high in porosity and has advantage of uniform dispersion of metal active components; compared with a conventional powdery formaldehyde catalyst, by using the nano-fiber membrane as a catalyst supporter, the productis uniform in catalyst particle distribution and is low in wind drag, so that the product is high in catalytic performance on the formaldehyde and also is long in service life. The room-temperature formaldehyde catalyst in the invention has excellent catalytic oxidization activity; compared with a formaldehyde catalyst in the prior art, at 25 DEG C, the product in the invention can reach more than 95% in catalytic conversion rate of the formaldehyde; after operation for 800 hours, the catalytic activity is not reduced, so that the product can satisfy present industrial demands better.

The invention relates to a waterborne polyurethane material and a preparation method of the material, in particular to a waterborne polyurethane material for laminating and compounding of foods or drugs in the packaging process and a preparation method of the material. The waterborne polyurethane material is prepared by compounding the following components by weight: 100 parts of anti-yellowing waterborne polyurethane dispersion, 0.01-0.2 parts of leveling agent and 0.01-0.2 parts of de-foaming agent. The waterborne polyurethane material has the advantages of yellowing resistance, non-toxicity, non-combustibility, safety in use, environmental protection and the like. The requirements of the laminating and compounding process on the waterborne polyurethane material are comprehensively considered, and the bonding strength and appearance in the laminating and compounding process are improved through carrying out chain extension for multiple times and adding the leveling agent and the waterborne de-foaming agent, wherein the T stripping strength and the readily oxidizable substance in the laminating and compounding process meet the industrial requirements for laminating and compounding of the foods or the medicines.

Production of epsilon-glycolylnium is carried out by Beckman rearrangement reacting for cyclohexanone-oxime under the existence of solvent to obtain epsilon-glycolylnium contained mixture, crystalline separating for the mixture to obtain crude epsilon-glycolylnium crystal, dissolving by arene, extracting by water, adsorbing by resin hydrogenation catalyzing to obtain the final product. The value of potassium permanganate is less than 5, extinction value is less 0.05, volatile alkali is less than 0.5meq / kg and alkalinity is less than 0.05meq / kg.

The present invention provides one kind of antifouling paint containing capsaicin microcapsule and its preparation process. The antifouling paint consists of adhesive of epichlorohydrin rein or vinyl resin 40-55 weight portions, organic solvent of toluene, xylene, etc. 11-33 weight portions, dispersant of sodium triphosphate, sodium or polyglycol 1.5-5.5 weight portions, anti-settling agent of organic bentonite, gas phase silica or polyethylene wax 0.5-3.5 weight portions, and antifoulant of capsaicin microcapsule 20-30 weight portions. The capsaicin microcapsule with covering of melamine resin is prepared through a in-situ polymerization process. The antifouling paint has simple preparation process and low production cost, and may be applied widely for sea ship, sea water cooling pipeline, etc.

The invention discloses a Mn / Co-based low-temperature SOC catalyst and a preparation method thereof. The preparation method comprises the following steps: (1) dissolving manganese-containing metal salt and cobalt-containing metal salt in dimethylformamide, adding an organic ligand and water, and magnetically stirring and uniformly mixing the components to obtain a mixed solution; and (2) carrying out hydrothermal reaction on the obtained mixed solution in a reactor, reacting to obtain Mn / Co double-metal organic framework crystal, soaking the Mn / Co double-metal organic framework crystal in the dimethylformamide and activating the Mn / Co double-metal organic framework crystal, and then purifying, filtering and roasting the activated crystal to obtain the Mn / Co-based low-temperature SCO catalyst. The Mn / Co-based low-temperature SCO catalyst has good low-temperature denitration activity. Compared with an existing low-temperature denitration catalyst, the Mn / Co-based low-temperature SOC catalyst has the advantages that the conversion rate of catalyzed NO is greatly increased, at the low temperature of 150-200 DEG C, the catalyzed conversion rate of NO can reach 50% or above, and existing industrial requirements can be met.

The invention discloses an electric valve fault detection method based on an LSTM model, and the method comprises the following steps: detecting the feature data of a valve during operation in real time, and collecting the feature data into a fault diagnosis processor through an eight-channel high-precision VGA signal collection card; setting a dynamic time window, extracting time series data withequal length as a sample of a data set, and making a diagnosis data training set; establishing an LSTM fault detection network model, and training by adopting a back propagation algorithm according to the LSTM fault detection model; and detecting the fault of the electric valve in real time, enabling the fault type corresponding to the maximum value of the output vector element to serve as the fault detection result of the electric valve, displaying the fault detection result on a liquid crystal display screen, and if detecting that a certain electric valve breaks down, triggering a buzzing alarm and a fault signal lamp at the same time to remind monitoring personnel. The intelligent level of the electric valve is improved, a large amount of work of manual detection is omitted, the real-time performance is high, and the industrial requirement is met.

The invention relates to a synthesis method for urea. The method includes carrying out a reaction of urea with a variety of substituted amines under the mild reaction conditions to prepare disubstituted urea. Corresponding isocyanates can be obtained through direct pyrolysis of urea. Meanwhile, ammonia and amine formed in the reaction process can be reused. The invention has non-use of the catalyst, and product separation process is simple, therefore suitable for large-scale industrialized production.

The invention discloses a multi-bar code positioning method, which comprises the following steps: (1) preprocessing the detected image to obtain a binary image; (2) edge detection is performed on theexternal rectangles in the binary image to obtain positions of a plurality of rectangles; (3) judging by the bar code, selecting the rectangle which meets the conditions; (4) determining the angle ofthe smallest circumscribed rectangle and correcting the angle to realize the upright of the bar code; (5) sorting the upright rectangles of the bar codes, obtaining a plurality of sorted rectangular regions containing the bar codes under the condition that the bar code system is consistent, and completing the positioning of the bar codes. The invention can obtain the positioning of a plurality ofbar codes in one measurement, can greatly speed up the whole logistics speed, and thus achieves the purpose of improving the efficiency.

The softening and coagulating treatment process of gas scrubbing water with high calcium hardness and high solid suspension content is one simultaneous softening and coagulating process, in which sodium carbonate solution of 1-15 % concentration is added in proper position of coagulating deposition tank and the created calcium carbonate crystal and the suspended solid matter coagulate under the action of the coagulant. The present invention features that under the condition of maintaining the water pH unchanged, the concentration of calcium ion and suspended solid in water is reduced in simplified technological process, not expanded apparatus capacity and long term stable operation of the system. The present invention is also suitable for the coagulation and deposition treatment of other industrial effluent with high calcium hardness and high solid suspension content.

The invention is a method for preparing a silicon nanotube, which takes the mixed powder of SiO, Si, etc. as the starting material and a small amount of rare earth elements as an indirect catalyst, evaporates the material under the conditions of high temperature and low air pressure, and causes the silicon atoms to accumulate and nucleate at a proper deposition temperature, thereby preparing the hollow-structured silicon nanotube. The method for preparing the silicon nanotube has the advantages of simple process, low-cost equipment, complete crystal structure of the nanotube, and capability for meeting the industrial requirements. The successful preparation of the nanotube provides a practicality foundation for the nanuotube to be widely applied in nanoelectronic devices in the future, and the theoretical research of the nanotube is verified from the experiment.

The invention provides a preparation method capable of increasing the macropore volume of a silicon dioxide carrier. The preparation method comprises steps as follows: components comprising, in parts by mass, 100 parts of silicon dioxide powder with the specific surface area of 60 m<2> / g-250 m<2> / g and 10-30 parts of macromolecule ultrafine powder which basically doesn't have any residues after firing and basically doesn't absorb water to be swollen are sufficiently and uniformly mixed; 80-100 parts of a polymer aqueous solution with certain viscosity and with the mass concentration being 0.1%-0.5% is added, the mixture is sufficiently and uniformly mixed, 40-70 parts of silica sol with the concentration being 20%-30% is added, and the mixture is sufficiently and uniformly mixed and placed in an airtight manner; the average diameter of particles of the silica sol ranges from 10 nm to 30 nm, and the polymer basically doesn't have any residues after calcination and is selected from one of polyacrylamide, cellulose and modified starch; the mixture is kneaded and extruded to form strips, the extruded strips are dried and calcined at the temperature of 600 DEG C-670 DEG C for 2-4 hours, and the silicon dioxide carrier is obtained. According to the silicon dioxide carrier, the volume of macropores with the diameters larger than 100nm is higher than 0.10-0.35ml / g, the silicon dioxide carrier has higher mechanical strength, and the side pressure strength is higher than 150 N / cm.

The invention relates to the field of waste resource utilization, and discloses a method for preparing a denitration catalyst from a waste denitration catalyst. The method comprises the following steps: (1) pretreating the waste denitration catalyst; (2) mixing the product with acid liquor, and conducting reacting and filtering to obtain filtrate and filter residues; (3) washing, filtering and drying the filter residues to obtain powder containing vanadium, tungsten and titanium; (4) carrying out extraction treatment on the filtrate to obtain a mixed solution containing vanadium and tungsten;(5) mixing the powder containing vanadium, tungsten and titanium with the mixed solution containing vanadium and tungsten, a binder, a lubricant, a pore-forming agent, a surfactant, a structural aid and water to obtain a mixture; and (6) aging the mixture, and conducting filtering, molding, drying and roasting to obtain the denitration catalyst. The method has the advantages of simple process flow, less secondary pollution and low cost, and the prepared denitration catalyst has excellent catalytic performance and can meet the requirements of actual production.

The invention relates to a treatment process of high-salt and high-organic-matter wastewater. The high-salt and high-organic-matter wastewater firstly passes through a sedimentation tank and then passes through a regulating tank, acid or alkali liquor is added to regulate the pH value in the water to be 7-9, low-boiling-point organic matters are evaporated through pre-evaporation, the low-boiling-point organic matters in the wastewater are evaporated, and the concentration of the obtained low-boiling-point organic matters is between 5% and 95%. The wastewater from which the organic matters with low boiling points are evaporated enters evaporation crystallization, and salt in the wastewater is crystallized. The crystallized salt enters pyrolysis again, the organic matters entrained in the salt are converted into carbon dioxide and water, the pyrolyzed salt can meet the industrial requirement, meanwhile, heat is recovered, and the pyrolyzed salt can be used for heat consumption of pre-evaporation. According to the process, organic matter components in the wastewater can be efficiently removed according to the boiling point of the organic matters, salt is separated through evaporativecrystallization, the evaporated water is recycled, and zero discharge of the wastewater is realized.

The invention discloses a treatment method of fluoride-containing wastewater, the fluoride-containing wastewater is treated by a wastewater treatment distillation system, the wastewater treatment distillation system includes a distillation kettle, a filling rectifying tower, a condenser and a liquid reservoir, and the method is as follows: the fluoride-containing wastewater is led in from a wastewater inlet of the distillation kettle, at the same time a water absorption solvent is led in from a solvent inlet, hydrogen fluoride is collected from a gas outlet, and when the tower top temperature of the filling rectifying tower is higher than the hydrogen fluoride collecting temperature, the collecting is stopped; the distillation kettle temperature is gradually increased to 80-150 DEG C, under the pressure of 0.110-0.120MPa, trifluoroacetic acid is collected from the gas outlet, and when the tower top temperature of the filling rectifying tower is higher than the trifluoroacetic acid collecting temperature, the collecting is stopped; the treatment method is good in separation effect, the product purity is high, the hydrogen fluoride recovery rate is up to 98.6%, the product purity can reach 99.9%, the trifluoroacetic acid recovery rate can reach 99.0%, the product purity is up to 99.8%, no three wastes is produced, and concentrated acids produced in the treatment process are reusable.

The invention discloses an egg-chicken feed additive for producing xanthophyll-enriched eggs by using orange peel. The egg-chicken feed additive is prepared from the following raw materials in parts by weight: 70-72 parts of fermented orange peel powder, 6-8 parts of rice hull powder, 12-14 parts of coccolithophore powder and 8-10 parts of assistant; wherein the assistant comprises solid calcium bisulfate, microcrystalline cellulose and silicon dioxide at the ratio of 1.5:6.7:1.8. A preparation method comprises the following steps: firstly, airing or drying orange peel, rice hull and coccolithophore, respectively crushing into coarse powder with a particle size of 60-80 meshes; in order to make xanthophyll in the orange peel relatively easily absorbed and utilized, fermenting the orange peel powder by using lactobacillus acidophilus, finally uniformly mixing the fermented orange peel powder, the rice hull powder and the coccolithophore powder according to a proportion and then uniformly mixing with the assistant, processing by using a high-energy vibration mill, and making all raw materials generate a solid mechanical and chemical reaction to obtain a finished product. By applying the egg-chicken feed, an egg-chicken is fed by applying the egg-chicken feed, the content of the xanthophyll in yolk can be remarkably improved, and is higher than that of a control group by above 30 percent. According to the egg-chicken feed additive, nutritional conditions of intensively culturing the egg-chicken are improved, the orange peel is comprehensively utilized, waste is changed into valuable, cyclic economy is realized, and the economic benefit is remarkable.

The invention relates to a method for preparing ultra-thin porous nickel selenide nanosheet array by etching manganese-doped nickel hydroxide, which relates to the technical field of electrode materials for supercapacitors. As that electrode material structure of the exist transition metal selenide nano-sheet is unreasonable, if the electrode material is an ultra-thin nano-sheet structure, the electrode material cannot be porous, and the ion mobility and the contactable active site are affect; the electrode material structure of the transition metal selenidenano-sheet is unreasonable. If the nanosheets are porous, the thickness is too thick, the contact active sites are too few, and the energy storage is too low, so the capacitance performance is too low. Methods: 1. Preparation of reaction solution; 2, preparing a manganese doped nickel hydroxide nano sheet array; 3, selenide treatment; Fourthly, acid etching, that is, a method of preparing ultrathin porous nickel selenide nanolithicarray by etching manganese-doped nickel hydroxide is completed. The invention provides the method used for preparing ultra-thin porous nickel selenide nanosheet array by etching manganese doped nickelhydroxide.

The invention discloses a making method of large-particle anhydrous sodium sulfate, which comprises the following steps: adding 0.01%-10% surface activator with one or more of dodecyl phosphate ester, dodecyl sodium benzosulfonate, dodecyl dimethyl amine oxide, phenylethene or carbowax; adding water under 60-260 deg.c; keeping the constant density of solution to react 1.5-3.0h; stopping heating; filtering; drying; obtaining 80% product over 40 order.

The invention discloses a force position servo control system for automatically cleaning a carbon bowl of an anode carbon block for aluminum electrolysis, comprising five servo driving motors with absolute encoders, two pressure sensors, a torque sensor, a programmable logic controller, a photoelectric switch and a vision system, wherein the programmable logic controller is communicated with the five servo driving motors through a field bus and connected with the pressure sensors and the torque sensor through an I / O (Input / Output) port; the photoelectric switch is installed at an initial position and a final position of the carbon block and used for locating the carbon block; the vision system is used for locating a carbon bowl center and a chute angle; and the programmable logic controller is used for locating a cleaning tool to the carbon bowl of the carbon block and a chute according to position information obtained by the vision system and controlling the tool to simultaneously clean the carbon bowl and the chute. By using the force position servo control system, full-automatic force position serve control for locating the anode carbon block, measuring the height of the anode carbon block, locating the carbon bowl and the chute and cleaning the carbon bowl and the chute can be realized.

The invention relates to a foaming and molding process and a foaming and molding device for a non-viscous polymer matrix by adopting mixed swelling of supercritical fluid and a blowing promotor. In the supercritical foaming field, the blowing promotor can promote the diffusion of the supercritical fluid in the non-viscous polymer matrix, reduce the foaming temperature of the supercritical fluid and improve the foaming rate of a foaming product. However, the supercritical fluid, the blowing promotor and a non-viscous polymer lead to extreme instability of a foaming process of a mixed foaming agent and extreme instability of cellular structures of the foaming products under a multicomponent multiphase complex system at high temperature and high pressure. For sufficiently realizing the synergistic effect of the blowing promotor and the supercritical fluid in promoting the supercritical foaming, the invention provides a self-adjusting foaming and molding process and a self-adjusting foaming and molding device for supercritical mixed fluid containing the blowing promotor under the multicomponent multiphase complex system, and thereby the self-balancing aim of the multicomponent multiphase complex system under the supercritical foaming condition is achieved, finally a foaming technology is stabilized, the cellular structure is improved and the performance of the products is improved.

The invention is concerned with the shielding material and the preparation method for the thermal neutron, it is: uses the plasma spray, the detonation spray or the solid boronization processing to establish the appropriate craft parameter, sprays boron carbide layer or the compound of FeB and Fe2B on the surface of steels that can get the shielding layer with different boron quantity from the base surface, uses different craft to adjust the spraying layer and the thickness of the seeping layer in order to achieve the request of industry according to the need to select the fitful thickness steel. The invention is with better shielding effect.

The invention provides F / Mn co-doped SnO2 nanopowder and the preparation method thereof, and belongs to the technical field of co-doped SnO2 nanopowder. The preparation method includes the following steps that first water is added to a reactor and citric acid is added to adjust pH while the temperature is raised to 40-60 DEG C with stirring, then SnCl4 5H2O is added until dissolved, additionally, MnSO4 H2O and NH4F are added to the above solution, after stirring is continued for 10 minutes, a precipitating agent is gradually added to the above solution and stirring is continued for another 30 minutes, subsequently, the pH is adjusted to 5-11, and a dispersing agent is further added. The resulting mixture is subjected to a hydrothermal reaction at a temperature of 140-200 DEG C. After reacting for 2-36 hours, the product is washed with distilled water and anhydrous ethanol until no Cl- is detected. Finally, the F / Mn co-doped SnO2 nanopowder is obtained by subsequent drying, calcining and milling. The F / Mn co-doped SnO2 nanopowder with a size of about 12 nanometers and uniform dispersion can be prepared by the preparation method.

The present invention is vinyl chloride monomer unloading method with gaseous vinyl chloride monomer as pressurizing gas. Vinyl chloride monomer compressor is mounted in the pipeline between the tank truck and the monomer storage tank, and during unloading vinyl chloride monomer material, the compressor is first turned on to compress gaseous vinyl chloride monomer from the storage tank, the compressed gaseous vinyl chloride monomer is then fed into the tank truck to form pressure difference between the tank truck and the storage tank, and the pressure difference is utilized in unloading liquid vinyl chloride monomer from the tank truck to the storage tank. The said method has no gas pickling, fast unloading, no introducing of impurity gas, and other advantages.

The invention relates to a method for preparing a flocculant for efficient settling separation of high-silicon and high-iron type red mud generated through a Bayer process. In the preparation of the flocculant, polyacrylamide with high molecular weight is used as a raw material, and a one-pot synthetic process with acidification of hydroxamic acid and hydrolysis conducted at the same time is adopted to prepare the flocculant with the contents of hydroxamic acid and carboxyl up to 39.8% and 47.6% respectively, and the synthesis steps are simple. The synthesized flocculant can be used for effectively settling red mud generated in current production of low-grade high-silicon and high-iron diasporic bauxite through the Bayer process in China, the difficult problem that various flocculants are required to be added for settling separation of red mud in conventional aluminium oxide manufacture is overcome, cost is reduced, and industrial requirements are met.

The invention provides a rectification pretreatment and the salt treatment method for high-salt and high-organic-matter wastewater. The high-salt and high-organic-matter wastewater firstly passes through a sedimentation tank and then passes through an adjusting tank, acid or alkali liquor is added, the pH value in the water is adjusted to be 7-9, and then the rectification pretreatment is carriedout to evaporate out organic matters with low boiling points, the organic matters with low boiling points in the wastewater are evaporated to obtain the organic matters with low boiling points, wherein the concentration of the organic matters with low boiling points is between 50% and 99%, and the recovery rate is between 60% and 99.9%. The wastewater from which the organic matters with low boiling points are evaporated out enters evaporation crystallization, and salt in the wastewater is crystallized. The crystallized salt is subjected to pyrolysis, the organic matters entrained in the salt are converted into carbon dioxide and water, the pyrolyzed salt can meet the industrial requirement, and meanwhile heat is recovered for heat consumption of rectification pretreatment.

The invention relates to the field of denitration, and discloses TiO2-WO3 composite nano powder, a preparation method thereof, an SCR denitration catalyst and a flue gas denitration method. The preparation method of the TiO2-WO3 composite nano powder comprises the following steps: (1) cleaning and ball-milling a waste denitration catalyst to obtain crushed granules, and adding a strong alkali solution to carry out hot alkali treatment and first filtration to obtain filter residues; (2) carrying out acid pickling and water washing on the filter residues, and carrying out second filtration to obtain titanium-tungsten raw powder; and (3) roasting the titanium-tungsten raw powder to obtain the TiO2-WO3 composite nano powder. The preparation method of the TiO2-WO3 composite nano-powder is simple in process and low in cost and can be achieved at a relatively low temperature and under normal pressure, the prepared TiO2-WO3 composite nano-powder has a relatively high specific surface area, anda denitration catalyst prepared from the composite nano-powder has relatively high denitration efficiency.

The invention relates to a method for synthesizing polypyrrole in an oil solvent. The method comprises the following steps: sodium dodecyl sulfate, polyethylene glycol 6000, polyvinyl pyrrolidone, ethanol, butanol, peracetic acid, benzoyl peroxide, pyrrole monomer and the oil solvent are fully stirred under the condition of the room temperature or ice bath; the mixture is then subjected to ultrasonic, washing and drying, and a black polypyrrole product is obtained. According to the method, benzoyl peroxide is used as strong oxidant, and trichloromethane (isopropanol, cyclohexane, acetone, methylbenzene and the like) is used as the oil solvent. Therefore, polypyrrole polymers with the advantages of high purity, large yield, good stability, fast reaction, mild reaction conditions, high temperature resistance, good anti-pressure capacity, low cost input and the like can be prepared.