521results about How to "Reduce decrease" patented technology

The invention relates to a method and a device for tracking a dynamic resource dependency relationship and terminal equipment. The method comprises the following steps: acquiring cloud resource dependency data of a cloud service platform and / or a data center in real time; constructing a cloud resource dynamic dependency graph according to the cloud resource dependency data; detecting the cyclic dependence of the cloud resource dynamic dependence graph by adopting a depth-first search algorithm to obtain a cyclic dependence detection result; and using a TGCN algorithm to predict the future cyclic dependence of the cloud resource dynamic dependence graph to obtain a cyclic dependence prediction result. According to the method, a real-time cloud resource dynamic dependency graph is constructed, a depth-first search algorithm and a TGCN algorithm are adopted to process the cloud resource dynamic dependency graph to obtain a cyclic dependency detection result and a cyclic dependency prediction result, and a basis is provided for determining corresponding resource cyclic dependency prevention measures and processing strategies. And data is provided for effective cloud resource management and optimization, so that problems and risks caused by cyclic dependence are reduced, and the reliability of cloud services is improved.

The invention belongs to the technical field of network self-adaption, and particularly relates to a weak network self-adaption algorithm system based on dynamic network monitoring, which comprises the following steps of: deploying a monitoring agent on a network node; extracting network bandwidth, delay and packet loss rate from the network state report, preprocessing the extracted data, and extracting feature vectors from the preprocessed data; adjusting the size of a buffer area for data transmission according to the network bandwidth and delay; and controlling the sending and receiving of data according to the adjusted algorithm and parameter, monitoring the data transmission state in real time in the data transmission process, feeding back the data transmission state information, and adjusting the algorithm and parameter in time according to the feedback information. The problem of how to improve the efficiency and reliability of data transmission under the conditions of complex and changeable network environment, low bandwidth, high delay, serious packet loss and the like in the prior art is solved.

The invention provides a laser-induced sintering processing method which is applied to an 0BB double-sided electrode battery, a first electrode and a second electrode are adopted to make contact with all thin grid lines on the front face of a battery piece and all thin grid lines on the back face of the battery piece respectively, and a laser beam is controlled to scan the battery piece while reverse voltage is applied to the battery piece through the first electrode and the second electrode; the first electrode comprises N strip-shaped electrodes which are arranged at intervals; each strip-shaped electrode is vertically intersected and contacted with all the fine grid lines on the front surface of the battery piece; the width, needing to be scanned at a time, of the battery piece is divided into a plurality of areas, so that the distance between the strip-shaped electrode and the laser scanning area is shortened, the current density of each thin grid line is improved, the contact specific surface area of metal particles and silicon is increased, the contact resistance of the metal grid lines is reduced, and the service life of the battery piece is prolonged. Therefore, the purpose of high-efficiency laser-induced sintering of the 0BB double-sided electrode battery is achieved.

The grouting device for hydraulic engineering construction relates to the technical field of hydraulic engineering grouting and comprises a base, a stirring mechanism is arranged in the middle of the top of the base, a slurry pumping mechanism is arranged at one end of the top of the base, a push rod is arranged at the other end of the top of the base, and a switch panel is detachably connected to the middle of the top of the push rod. By arranging the stirring blades, slurry in the stirring tank can be stirred by utilizing the stirring blades, the purpose of cleaning the inner wall of the stirring tank can be achieved by arranging the spiral scraping plate and the conical vortex plate, and by arranging the air pump, air in the stirring tank can be pumped out, so that negative pressure is formed in the stirring tank; and after an electric control valve is adjusted, pumped air can enter the stirring tank from an air return pipe and is sprayed out from a spray head by utilizing high-speed airflow, the slurry on the surfaces of the stirring blades is further cleaned, and the purpose of preventing the slurry from being adhered to the interior of the device is achieved.

The invention discloses an anti-blocking self-passing type plastic molding device, which relates to the technical field of plastic product processing, and comprises a base station, a screw conveying component and a mold closing component, and a material pipe is fixedly mounted at a feeding hole in the upper part of the screw conveying component. In the working process of the injection molding machine, the driving motor drives the sliding barrel to rotate, through cooperation of the sliding column and the spiral groove, the pushing disc effectively pushes plastic materials in the material pipe, softening and blocking are avoided, meanwhile, the cutting knife is used for refining material particles, the pushing difficulty is reduced, and the production efficiency is improved; materials are screened through cooperation of screening holes and a blocking plate, large or unqualified materials are removed, it is ensured that the granularity of the raw materials is uniform, in the pushing process, a connecting rod and a sealing plate are matched, the interior of a material pipe is sealed after pushing is completed, the material pressure at the screening holes is increased through the double effects of sealing and extruding, and material circulation is promoted; the screening stability and the production quality are improved, and the finished product quality of plastic products is guaranteed.

The invention discloses a stylized image guided three-dimensional model texture generation method, computer equipment, a storage medium and a program product. The stylized image guided three-dimensional model texture generation method is a pipeline based on a diffusion model, style textures are generated under the guidance of a single image, style information is extracted from a reference image, and meanwhile content information is ignored. The method comprises the following steps: firstly, obtaining a grid model of a three-dimensional object and a stylized image for guiding, obtaining text embedding characteristics and style characteristics, and completing style injection in a diffusion model cross attention mechanism in a layering manner; and optimizing texture parameters of the texture representation model by utilizing interval score matching loss and style guide loss, and finally, sampling the texture representation model to obtain the final stylized texture of the high-quality three-dimensional object.

The invention relates to a treating agent and system for recovering the performance of a recoverable drilling fluid. The treating agent comprises an activating agent for recovering the performance of the recoverable drilling fluid, a modifying agent for recovering the performance of the recoverable drilling fluid and a stabilizing agent for recovering the performance of the recoverable drilling fluid. The system comprises a mixer, the mixer is communicated with a liquid inlet pipe capable of recycling drilling fluid, the liquid inlet pipe is respectively communicated with an activator solution storage device, a modifier solution storage device and a stabilizer solution storage device through pipelines, and a stirring device is arranged in the mixer. The activating agent, the modifying agent and the stabilizing agent are mixed into the recyclable drilling fluid to be treated to be uniformly stirred, and the mixer adopts a stirring device which rotates in the inner direction and the outer direction, so that the mixing efficiency of the activating agent, the modifying agent, the stabilizing agent and the recyclable drilling fluid is effectively improved. According to the method, the treatment effect is good, the high-value drilling fluid can be repeatedly used, the treatment cost of the recyclable drilling fluid is reduced, the treatment efficiency is improved, and the performance of the recyclable drilling fluid is rapidly recovered.

The invention discloses a petroleum horizontal well traction device. Wherein the traction device comprises a first power assembly, a second power assembly, a third power assembly and a fourth power assembly; the first power assembly is arranged in the shell and is internally provided with a control element and a power element; the driving wheel set penetrates through the outer surface of the shell and can be freely expanded, and the driving wheel set is connected with the first power assembly through a transmission assembly; a certain included angle is formed between the driving wheels of the adjacent driving wheel groups; second power assemblies are arranged at the two ends of the shell and connected with the driving wheel sets through telescopic shafts. By arranging the driving wheel set capable of expanding freely, the driving wheel set can adapt to wellbores with different diameters, so that the time and cost for replacing equipment with different sizes are reduced. In actual operation, the diameter of the shaft may be different due to geological conditions or operation requirements, and the driving wheel set with the free expansion function can flexibly deal with the situation, so that the flexibility and applicability of operation are improved.

The invention relates to the technical field of ore sample preparation, in particular to an automatic quartz ore chemical analysis sample preparation device which comprises a material table, a sampling table is fixedly arranged on the side wall of the material table, a feeding hopper is fixedly arranged on the front wall of the sampling table, the lower end of the feeding hopper is communicated with a crushing assembly, and a crushing box is arranged on the crushing assembly; a grinding assembly is fixedly arranged on the bottom face of the crushing box, a grinding box is arranged on the grinding assembly, a screening assembly is fixedly arranged on the bottom face of the grinding box, a hollow screening box is arranged on the screening assembly, and a discharging frame is fixedly arranged on the bottom face of the hollow screening box. According to the invention, the crushed ore particles are more uniform, the existence of large ore blocks is reduced, the crushing quality is improved, the continuity and stability of the crushing process are ensured, the grinding effect is improved, the ground quartz ore particles are more uniform and fine, and the graded screening of the ore particles is facilitated; and rapid sample preparation of automatic quartz ore chemical analysis is realized.

The invention relates to the technical field of electric power safety monitoring, in particular to an electric power inspection well safety early warning method and system, and the method comprises a data collection step, a modeling step, a model training step, a prediction step, a judgment step and a fault early warning step. The system comprises a data acquisition module, a modeling module, a model training module, a prediction module, a judgment module and a fault early warning module. The electric inspection well monitoring system has the effects of monitoring the electric inspection well in time and reducing problems.

The invention discloses a large-size low-grain-size 4N5 oxygen-free copper plate and a preparation method thereof, and the preparation method comprises the steps of first-fire forging, second-fire forging, third-fire forging and heat treatment to obtain the 4N5 oxygen-free copper plate. Through multiple times of upsetting and drawing in the forging process, crystal grains in metal are repeatedly crushed and recrystallized, the crystal grains are refined, then the heat treatment process is combined, the crystal grain size of the oxygen-free copper plate is further refined, large-size crystal grains are reduced, the structure uniformity of the oxygen-free copper plate is better, and the mechanical property of the oxygen-free copper plate is higher. After the low-grain-size 4N5 oxygen-free copper plate prepared through the method is precisely machined, due to the fact that the grain size of the low-grain-size 4N5 oxygen-free copper plate is small, grain growth is not obvious, residual stress is released in the heat treatment process, and then the problem that grains of a large-specification 4N5 oxygen-free copper plate grow abnormally in the high-temperature environment is solved.

The utility model discloses a biological extraction filtering device which effectively solves the problem that the production efficiency is influenced by blockage of a filter screen. Comprising two filters which are reversely arranged in parallel, filter screens are arranged in the filters, the filter screens are arranged at the positions, close to the ends, of the filters, the filters are divided into filter cavities and liquid outlet cavities through the filter screens, pistons are arranged in the filter cavities in a sliding mode, liquid inlets are formed in the ends of the filter cavities, liquid outlets are formed in the middles of the filter cavities, and the liquid outlet cavities are connected with liquid outlet pipes and liquid storage pipes. The pistons are controlled by connecting rods penetrating through the ends of the filters, and the connecting rods in the two filters are connected to the same double-head hydraulic cylinder; according to the utility model, the structure is simple and ingenious, the filtering can be continuously carried out through the matching of the two filters, part of clean essence is stored in the liquid storage pipe, and the filter screen can be backflushed, so that attachments on the filter screen are reduced, and the service life is prolonged.

The utility model relates to the related technical field of power distribution cabinets, in particular to a power distribution cabinet mounting device with an adjustable function, which comprises a bottom plate, a base and a placement plate, the base is mounted on the lower surface of the bottom plate, and the placement plate is mounted on the upper surface of the bottom plate. A lifting mechanism is arranged on the upper surface of the placing plate, a damping mechanism is arranged on the upper surface of the placing plate, an adjusting mechanism is arranged on the upper surface of the placing plate, and a mounting mechanism is arranged on the upper surface of the placing plate. The power distribution cabinet can keep a proper distance from the ground, line connection and maintenance are facilitated, the electric lifting machine is more flexible to adjust and can adapt to application scenes of different heights, the adaptability of equipment is enhanced, the electric lifting machine can effectively reduce the installation time, improve the working efficiency, bring more economic benefits to users, remarkably reduce the total cost, and the power distribution cabinet is worthy of popularization and application. And greater economic benefits are brought to the power industry.

The invention provides a copper-based catalyst, a preparation method and application thereof, and a method for preparing alcohol by hydrogenation of n-butyraldehyde, the catalyst comprises an active component copper oxide, an optional auxiliary metal oxide and a carrier, and the reduction peak temperature of CuO in H2-TPR in the copper-based catalyst is 150-200 DEG C. The active components of the catalyst provided by the invention are uniformly dispersed, the utilization rate of metal can be improved, the mass and heat transfer performance in the catalyst is enhanced, the existence of reaction hot spots and the occurrence of overheating side reactions are reduced, and the catalyst is high in activity, high in selectivity and good in stability.

The invention relates to a method for identifying information of waste steel entering a converter, and belongs to the technical field of ferrous metallurgy. According to the technical scheme, the method comprises the steps that scrap steel is loaded into a scrap steel bucket batch by batch through a crown block by means of a suction magnetic disk crane, the type of the loaded scrap steel is recognized through a deep learning artificial intelligence model, and meanwhile the scrap steel adding time and the weighing weight are recorded; after the scrap steel loading operation is completed, recording the time when the ground vehicle is driven out as the loading ending time; an industrial camera is installed on a converter platform, before a crown block is hoisted to the converter platform, a converter starts a scrap steel adding operation signal, the number of a scrap steel hopper is recognized through the industrial camera, and meanwhile the scrap steel entering time is recorded. According to the method, the accuracy of the information of the steel scrap entering the converter is improved, accurate basic data are provided for automatic, modeling and intelligent production of the converter, the labor intensity of operators is effectively relieved, and a foundation is laid for intelligent transformation and high-quality development of converter smelting.

The invention discloses a preparation method of ultra-clean high-purity methanol for semiconductor electronics, which comprises the following steps: (1) mixing industrial methanol with a metal chelate, stirring for 1 hour at 20-35 DEG C, and dehydrating for 1-1.5 hours by using a 4A molecular sieve; (2) enabling the dehydrated methanol solution to pass through an adsorption device filled with 200kg of metal boron adsorbent, and reacting for 2-2.5 hours at the temperature of 40-50 DEG C; (3) carrying out ion exchange to remove anions and cations; (4) carrying out double-tower rectification on the methanol solution treated in the step (3) through a pressurizing tower and an atmospheric tower in sequence; and (5) conveying the rectified methanol solution to a hundred-grade purification room by a pump, and carrying out precision filtration. The content of methanol is increased to 99.9% or above, the content of anions is reduced to 100 ppb or below, the content of cations is reduced to 0.1 ppb or below, the water content is reduced to 200 ppm or below, the content of particles larger than 0.2 micrometer is reduced to 200 / ml or below, and the overall index reaches the G4 standard.

The invention relates to a full-lamination method and device of a display device and the display device.The full-lamination method comprises the steps that firstly, a lamination area of a first panel is coated with liquid optical cement, the lamination area is covered with the liquid optical cement, then an initial glue layer is formed on one face of the first panel through a curing process, and the thickness of the initial glue layer is 0.55 mm-0. 65 mm; liquid optical cement is coated on a glue coating area of one face, deviating from the first panel, of the initial glue layer, the glue coating area is located in the central area of the initial glue layer, the area of the glue coating area is 1 / 2-4 / 5 of the area of the attaching area, and the maximum thickness of the coated liquid optical cement is 0.05 mm-0. 25mm; the second panel is placed on the side, provided with the liquid optical cement, of the first panel, pressing and defoaming treatment are conducted, and then curing is conducted to obtain the full-lamination display device. According to the laminating method, the bubble reversing phenomenon in the manufacturing process of the display device is reduced or even eliminated, the product yield is improved, the display effect of the display device is improved, and the resolution ratio, the contrast ratio and other performance are improved.

The invention belongs to the technical field of material preparation, and particularly relates to a high-thermal-conductivity copper-diamond composite material preparation method which comprises the following steps of (1) raw material preparation, (2) SLM equipment preparation and preheating, (3) model printing, (4) heat treatment, (5) finish machining and (6) classified inspection and storage. The screened diamond powder is cleaned and dried through alcohol, workers can conveniently operate and use the diamond powder, manufacturing of the composite material is more accurate, SLM equipment is cleaned through a dust collector, machining operation of the composite material is convenient, the situation that the composite material carries scraps during machining is avoided, and through heat treatment, the machining efficiency is improved. The composite material can be conveniently processed and operated, the mechanical property of the material can be improved, the structure and the organization of the material can be adjusted, the defects of the material can be repaired and improved, workers can conveniently inspect through inspection and storage, and the probability that the composite material has problems during use is smaller.

The present invention provides a raw material cleaning device for juice making, which relates to the technical field of juice raw material cleaning devices, and includes a main cleaning water tank, a side circulation chain, a lower cleaning drum and an upper cleaning drum; the side circulation chains are arranged on both sides of the main cleaning water tank, the outer annular array of the side circulation chain has a lower cleaning drum, the upper cleaning drum is arranged on the middle upper side of the main cleaning water tank, an inner guide plate is fixed to the inner annular array of the head end of the lower cleaning drum, a foam generating hole is arranged in the middle interval array of the lower cleaning drum, and a short brush strip is arranged in the outer annular array of the middle of the lower cleaning drum. The foam generating hole of the lower cleaning drum generates bubbles to the outside, and the bubbles directly contact and clean the fruits and vegetables on the top of the lower cleaning drum, further improving the cleaning effect, solving the problem that the bubbles will be offset and reduced in the process of passing through the conveyor belt or conveyor roller, and the maximum effect of the bubbles cannot be guaranteed, which reduces the cleaning efficiency.

The utility model discloses an evanescent mode pouring gate structure for casting based on a box body. The evanescent mode pouring gate structure comprises an evanescent mode body, the evanescent mode pouring gate structure further comprises a pouring assembly used for flowing of pouring liquid, and the outer wall of the pouring assembly is fixedly connected with the outer wall of the evanescent mode body. The cross-shaped pouring gate is used for prolonging the length of the main pouring gate, and the utility model relates to the technical field of evanescent mode. According to the device, a flowing channel of molten metal is prolonged by arranging the pouring assembly and the cross-shaped pouring channel, the molten metal can be directly injected into the evanescent mode body, meanwhile, the part, not prone to being filled, in the evanescent mode body can be filled with the molten metal through the pouring assembly, and the air exhaust space is increased while the flowing channel is prolonged; the possibility that bubbles exist on the surface of a finished product is reduced, and the connecting parts of the pouring assembly and the evanescent mode body are pointed ends, so that workers can conveniently separate the finished product from waste materials.

The utility model relates to the technical field of power electronic devices, in particular to a double-sided heat dissipation silicon carbide power module packaging structure, which comprises a plurality of silicon carbide power devices, an upper ceramic substrate and a lower ceramic substrate. The silicon carbide power devices are placed on the copper layer through the upper nano-silver sintering layer, the metal gasket and the lower nano-silver sintering layer, the silicon carbide power devices on each ceramic substrate are connected through the metal connecting wire, the upper ceramic substrate and the lower ceramic substrate are connected through the metal connecting column, and the radiators are arranged outside the upper ceramic substrate and the lower ceramic substrate respectively. According to the structure, the double-sided radiator and the nano-silver sintering material are used, so that the heat dissipation performance of the whole module is improved, the service life of a packaging body is prolonged, and the packaging body is more aging-resistant.

The present invention provides a safe, environmentally friendly composition and an efficient method for recovering materials from industrial wastewater. More specifically, the present invention provides microorganism-derived compositions for the recovery of metals, elements, compounds and minerals, which compositions can be used to produce useful products.

The invention relates to the technical field of elbow shaping dies, in particular to an elbow comprehensive shaping die which comprises a die base, an elbow die is fixedly installed on the die base, an elbow is placed in the elbow die, an equipment frame is fixedly installed on the die base, a hydraulic cylinder is fixedly installed on the equipment frame, and an iron ball feeding base is in sliding fit with the equipment frame. A pushing mechanism is rotationally connected to the iron ball feeding seat, a plurality of shaping iron balls are placed in the mold seat, a check block is arranged in the mold seat in a sliding fit mode, when spherical shaping is conducted on an elbow, the iron balls can be automatically lifted to the proper height through the iron ball feeding seat, then the iron balls automatically fall into the elbow under the action of the pushing mechanism, and therefore the elbow is shaped. Problems and potential safety hazards caused by manual operation are effectively reduced, and safety, accuracy and production efficiency in the elbow manufacturing process are improved.

The invention discloses an efficient pretreatment system and method for kitchen waste, and the pretreatment system comprises a material receiving and conveying unit, a first-stage hydraulic pulping and sorting unit, a second-stage hydraulic pulping and sorting unit, a solid-liquid separation unit, a desanding unit, an oil-water separation unit and an impurity conveying unit. According to the system, kitchen waste can be efficiently crushed into fine slurry through the two-stage hydraulic pulping and sorting unit, the pulping effect and the impurity removal rate are improved, organic matter loss is reduced, the fine slurry is subjected to deslagging and refining through the solid-liquid separation unit and the sand removal unit in sequence, follow-up equipment blockage or damage can be avoided, the operation safety of the system is improved, and the service life of the system is prolonged. According to the system, solid-liquid separation and oil-water separation of the kitchen waste can be effectively realized, so that convenience is provided for subsequent resource utilization, and the resource utilization efficiency is improved; when the system is applied to kitchen waste treatment, the pulping effect can be improved, follow-up treatment is facilitated, the follow-up treatment process is simplified, and the kitchen waste treatment speed and efficiency are improved.

The utility model provides an improved tire building machine capsule drum, which belongs to the technical field of tire building capsule drums, and comprises a building capsule drum, a plurality of open slots, a hydraulic rod, an embedded strip and a soft rubber sleeve, and the inner end of the outer surface of the building capsule drum is provided with a plurality of open slots; when a tire is machined, the hydraulic rods extend to drive the embedded strips to move towards the outer side along the open grooves, so that the embedded strips partially extend out of the open grooves, the multiple embedded strips expand the soft rubber sleeve, and the outer diameter of the soft rubber sleeve is equal to the inner diameter of the tire needing to be manufactured; then the tire is processed and formed on the soft rubber sleeve, the soft rubber sleeve provides reliable protection for the tire bead part of the tire, the quality and the qualified rate of the tire product are improved, and after the tire is manufactured, the hydraulic rod shrinks, so that the embedded strip is completely accommodated in the open slot, and the tire is prevented from being damaged. And the soft rubber sleeve rebounds until the internal diameter is equal to the diameter of the molded capsule drum, so that the manufactured tire can be conveniently taken out.

The invention relates to an operation resource allocation method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: obtaining an operation resource obtaining request, wherein the operation resource obtaining request carries an operation resource request type, an operation resource required capacity and target request time; obtaining each initial operation resource; inputting the target request time into an operation resource allocation prediction model to obtain each prediction allocation flow direction corresponding to each initial operation resource and each prediction allocation capacity corresponding to each prediction allocation flow direction; screening out to-be-allocated computing resources from each initial computing resource by using the computing resource request type and each predicted allocation flow direction; and determining a target computing resource according to the predicted allocation capacity corresponding to the to-be-allocated computing resource and the capacity required by the computing resource. By adopting the method, the utilization rate of operation resource cost can be improved.

The invention belongs to the field of bacterial movement monitoring, and particularly relates to an imaging incubator capable of recording bacterial cluster movement in real time, the incubator comprises a box body, a delay shooting system, a temperature control system and a humidity control system; the time-delay shooting system comprises a camera, a shading plate and a flash lamp, the camera automatically captures an image according to preset exposure time at each preset interval, and the flash lamp is turned on at each preset interval and corresponds to the time when the camera automatically captures the image. The periodic lighting of the flash lamp is precisely synchronized with the shooting time of the camera, so that the long-time high brightness is avoided, and the possible inhibition effect of light intensity on the growth of microorganisms is prevented. According to the device, the illumination requirement during shooting is guaranteed, the influence on the culture environment is reduced to the greatest extent, clear images are captured regularly under the condition that the growth of microorganisms is not interfered, and valuable data support is provided for subsequent research.

The utility model discloses a kind of copper-clad plate cleaning equipment, its structure includes cleaning tank and rotating roller, copper-clad plate is placed into the inside of cleaning tank by import and export, in the first motor drives transmission rod so that in after driving gear and transmission gear lower rotating roller rotation pushes copper-clad plate to move, in moving to the bottom nozzle and top nozzle set up, water pump works so that spraying treatment is carried out to the upper and lower two end surfaces of copper-clad plate, and in the rotating of cleaning brush roller set up up and down, the surface of copper-clad plate is cleaned, to clean the surface of copper-clad plate, the upper and lower two end surfaces are cleaned, so that cleaning efficiency is higher, avoid the case that single face cleaning efficiency is low, and under the action of bottom adsorption roller and top adsorption roller, liquid on the surface of copper-clad plate is adsorbed, reduce the existence of surface liquid, so that subsequent surface drying efficiency is faster.

The present disclosure provides an iron phosphate and a preparation method and use thereof. The preparation method uses tree-shaped polypropylene imine as a medium to replace the alkaline substance of the prior art to adjust the pH, thereby generating iron phosphate and simultaneously allowing the iron phosphate to precipitate and grow on its tree-shaped structure through coordination. Finally, after removing the polypropylene imine at high temperature, iron phosphate containing a three-dimensional tree-shaped network channel can be obtained. The preparation method does not bring other impurities, effectively reduces the presence of alkali in the co-precipitation wastewater and reduces the cost of wastewater treatment. In addition, the three-dimensional tree-shaped network channel makes the iron phosphate easier to grind and process. When lithium iron phosphate is prepared subsequently, the channel can shorten the lithium ion transmission distance, thereby improving the electrical properties of lithium iron phosphate.

The invention discloses a hole pattern of a cogging mill for bars and a roll changing step of the cogging mill, and relates to the technical field of hole patterns of cogging mills. According to the cogging mill hole pattern for the bar and the roll changing step of the cogging mill, the cogging mill hole pattern for the bar comprises five hole patterns including K5, K4, K3, K2 and K1, and the diameter of a roll body is 1100 mm; the notch of the K5 is 380 to 400mm, the bottom of the K5 is 350 to 360mm, the angle R of the hole pattern is 23 to 27mm, the angle r of the hole pattern is 23 to 27mm, the slope of the side wall is 14 to 16 degrees, and the height of the K5 is 145 to 155mm; a K4 notch is 330 mm to 340 mm, the groove bottom is 295 mm to 305 mm, the hole pattern R angle is 23 mm to 27 mm, the hole pattern r angle is 23 mm to 27 mm, the side wall inclination is 13 degrees to 15 degrees, and the groove height is 145 mm to 155 mm. A K3 notch is 270-280 mm, a groove bottom is 235-245 mm, a hole pattern R angle is 28-32 mm, a hole pattern r angle is 23-27 mm, the slope of the side wall is 12-14 degrees, and the groove height is 165-175 mm; a K2 notch is 225-235 mm, a groove bottom is 195-200 mm, a hole pattern R angle is 28-32 mm, a hole pattern r angle is 23-27 mm, the slope of the side wall is 12-14 degrees, and the groove height is 165-175 mm; the K1 notch is 200-210 mm, the groove bottom is 165-175 mm, the hole pattern R angle is 28-32 mm, the hole pattern r angle is 23-27 mm, the slope of the side wall is 12-14 degrees, and the groove height is 165-175 mm.