73results about How to "Long cycle" patented technology

The invention discloses an intelligent auxiliary system and method for regular inspection of a pressure vessel, and aims to improve the intelligence, efficiency and accuracy of inspection of the pressure vessel. The system comprises a data acquisition module, a data processing module, a risk assessment module, an inspection plan generation module, a report generation module, a remote monitoring module and a historical data management module. Operation parameters of the pressure vessel are collected in real time through the sensor, the data processing module carries out elimination and trend analysis on abnormal data, and the risk assessment module assesses the operation state of the pressure vessel through machine learning and a fuzzy logic algorithm. The system dynamically generates an inspection plan according to an evaluation result and adjusts an inspection period through Bayesian updating, and a generated inspection report has a digital signature to ensure safety. The historical data management module stores and analyzes long-term data and supports trend prediction of equipment health conditions, and the remote monitoring module provides real-time state checking and early warning.

The invention relates to the technical field of metal pressing, in particular to a precise mold manufacturing method for gearbox parts, which comprises the following steps: automatically feeding at an initial feeding speed and detecting raw materials; feeding is conducted at the initial pushing frequency, and the raw materials are conveyed into a first station, a second station and a third station; the pressure borne by the raw materials in any station is calculated, the machining working condition is judged, and machining parameters are adjusted according to the machining working condition; according to the number of the stations not meeting the working conditions, whether the material of the to-be-machined raw material changes or not is judged, the deformation coefficient of the raw material is calculated, and the initial pressure value of a stamping head is correspondingly adjusted; according to the adjustment condition of the machining parameters of the stamping head, whether the adjusted machining efficiency meets the machining requirement or not is judged, the stamping duration difference value between the procedures is calculated, and the stamping period, the circulation period and the pushing frequency are correspondingly adjusted; and the workpieces are conveyed to the discharging opening to be discharged. The precision of the gearbox part manufacturing process is improved by conducting multi-station automatic machining on raw materials.

The invention relates to the technical field of grass carp (Ctenopharyngodon idella), in particular to a method for knocking out a grass carp SMYD3 gene and application of the grass carp SMYD3 gene. The nucleotide sequence of the gRNA is as shown in SEQ ID NO: 1. The method comprises the following steps: synthesizing gRNA of a target gene through in-vitro transcription, then mixing the gRNA with Cas9 protein, introducing the mixture into an animal pole in a grass carp fertilized egg single-cell period by adopting a microinjection mode, and hatching to obtain the grass carp F0 generation with the target gene mutation. According to the application, the knockout of the grass carp gene is efficiently realized, and an effective technical means is provided for developing grass carp breeding and gene function research.

The invention discloses a technology mining method, system and device based on a smart workshop, and relates to the technical field of artificial intelligence, and the method comprises the steps: building a data connection with a smart factory management system, and at least distributing the access and call authority of equipment operation data, production data and workshop monitoring data; defining data obtained from the smart factory management system as original data; allocating technician permissions and innovation administrator permissions to the created accounts to form technician accounts and innovation administrator accounts; executing an AI mining process on the original data; and executing a collaboration process after receiving collaboration requests initiated by the technician account and the innovation administrator account. The method and the device have the effect of improving the technical mining convenience of enterprises.

The invention discloses a molecular marker influencing the early weight of sheep as well as a primer and application of the molecular marker. According to the molecular marker capable of influencing the early weight of the sheep, two complete linkage sites of NC056056.1: g.26656G > A and NC056056.1: g.26473C > T of NR4A1 genes of the sheep, and three genotypes of GGCC, AGCT and AATT are shared. The weaning weight of the AGCT type sheep at the age of 45 days and the average daily gain from newborn to weaning are obviously higher than those of GGCC type sheep. The invention relates to a method for screening an early-stage rapid growth sheep variety (line), which comprises the following steps: detecting the G / A polymorphism of a NR4A1NC056056.1: g.26656 site and the C / T polymorphism of a NC056056.1: g.26473 site of sheep, and selecting AGCT type individuals for breeding. The polymorphic site can be used for early auxiliary selection of sheep growth traits, the selection accuracy is improved, and the breeding process is accelerated.

The invention discloses an acupoint patch as well as a preparation method and application thereof, and belongs to the technical field of traditional Chinese medicines. The acupoint application agent comprises a traditional Chinese medicine composition, and the traditional Chinese medicine composition is prepared from, by mass, 8-12 parts of raw semen brassicae, 8-12 parts of raw rhizoma pinelliae, 3-8 parts of herba asari, 8-12 parts of semen armeniacae amarae, 8-12 parts of cortex cinnamomi and 3-8 parts of euphorbia kansui. The acupoint application agent and the lung tonifying decoction are taken as a traditional Chinese medicine combined preparation for oral administration and external use and are applied to preparation of medicines for treating lung and kidney qi deficiency type COPD in the stable phase. The combined application of the acupoint application agent and the lung tonifying decoction can tonify lung and kidney, relieve cough and reduce sputum, achieve the purposes of treating COPD stable phase and improving prognosis, has the comprehensive advantages of safety, effectiveness and economy, can well solve the current situation that clinical medicine is insufficient in clinical severe acute attack light stable phase and COPD stable phase, and has wide application prospects.

The invention belongs to the technical field of freeze-dried powder protective agent screening, and particularly relates to a screening method and application of a freeze-dried powder protective agent. According to the screening method and application of the freeze-dried powder protective agent, a freeze-drying protective agent rapid screening technology based on cell viability can accurately and efficiently complete screening of the probiotic freeze-drying protective agent, and a brand new thought is provided for screening of the probiotic freeze-drying protective agent.

The invention discloses an electric vehicle troubleshooting system and method. The system comprises a pre-charging detection module and a pre-charging detection loop module which are connected to an electric vehicle bus in parallel. The pre-charging detection loop module comprises a plurality of pre-charging detection branch circuits which are connected in parallel, each pre-charging detection branch circuit is connected with an electric vehicle bus, and each pre-charging detection branch circuit comprises a high-voltage component and a high-voltage relay used for controlling the on-off of the current pre-charging detection branch circuit; the detection end of the pre-charging detection module is connected with an electric vehicle bus, the power supply end of the pre-charging detection module is connected with an electric vehicle battery system, and the pre-charging detection module is used for carrying out pre-charging troubleshooting on a high-voltage part corresponding to the high-voltage relay according to the resistance value and / or tube voltage drop value of the electric vehicle bus. According to the electric vehicle troubleshooting system and method provided by the embodiment of the invention, automatic insulation and pre-charging troubleshooting are realized.

The invention belongs to the technical field of medical materials, and particularly relates to high-strength dual-network self-healing hydrogel as well as a composition, a preparation method and application thereof. The composition for preparing the high-strength dual-network self-healing hydrogel comprises a composition A for constructing a first network system of the hydrogel and a composition B for constructing a second network system of the hydrogel, wherein the composition A comprises modified chitosan and modified hyaluronic acid, and the composition B comprises polyvinyl alcohol and sodium tetraborate; the volume ratio of the polyvinyl alcohol to the modified chitosan to the modified hyaluronic acid is (5-7): (5-7): 1; the concentration of the modified chitosan is 2-4 wt%, the concentration of the modified hyaluronic acid is 8-12 wt%, and the concentration of the polyvinyl alcohol is 18-22 wt%. The high-strength dual-network self-healing hydrogel prepared on the basis of the composition has relatively high mechanical performance and excellent self-healing performance, and also has excellent resilience performance, swelling performance, shape memory and ionic conduction behavior.

The invention discloses a position detection method for an inductive position sensor, and relates to the technical field of sensor position detection. The invention discloses a position detection method for an inductive position sensor. The method comprises the following steps: S1, generating a sine frequency division signal and a cosine frequency division signal; s2, generating a position sine signal and a position cosine signal; s3, generating a phase detection signal to be detected; and S4, calculating the actual position of the conductive target. The method solves the problems that in the prior art, the resolution ratio of signal processing cannot be improved, target position information is prone to being inaccurate, meanwhile, redundancy processing cannot be carried out on signals, and safety is not high, reduces complexity of an analog-to-electric conversion module and arc tangent calculation, and improves the accuracy of analog-to-electric conversion and arc tangent calculation. Moreover, a detection method with higher resolution can be used through phase detection, the detection accuracy is improved, redundancy processing can be carried out, the safety is improved, the amplitude detection processing difficulty of phase detection is low, and the complexity is reduced.

The utility model relates to sports spectacles, which comprise a spectacle frame and two spectacle legs connected to the spectacle frame, each spectacle leg comprises a connecting section, a bending section and a hanging lug section which are connected in sequence, the front end of each connecting section is connected to the spectacle frame, the front end of each bending section is connected to the rear end of each connecting section, and the front end of each hanging lug section is connected to the rear end of each bending section. Wherein the part from the front end of the bent section to the rear end of the bent section is bent towards the inner side, and the front end of the hanging lug section is a hanging lug position on the glasses leg. The front end of the bent section is bent inwards from the front end of the bent section to the rear end of the bent section, so that the front end of the ear hanging section connected to the rear end of the bent section is more tightened inwards, the front end of the ear hanging section is the ear hanging position, the ear hanging piece can be more attached to the ear when being worn, the gap between the front end of the ear hanging section and the contact part of the ear is reduced, and the wearing stability is improved. In addition, the bent section can bear large elastic deformation and can adapt to the change of the face shape, the period of replacing the sports glasses can be prolonged, and the service life of the sports glasses is prolonged.

The invention relates to the technical field of mobile communication, in particular to an urban resident lifestyle identification method based on Wi-Fi handshake data. Wi-Fi handshake data of the mobile terminal are collected; based on the Wi-Fi handshake data, identifying visit events of an individual at different points of interest (POI), and forming a continuous visit sequence according to a time sequence; compressing the visited sequence, and extracting a long-term repeated high-frequency sequence mode; calculating the similarity between the users based on a high-frequency sequence mode, and obtaining a user group cluster with similar lifestyles through clustering; and performing feature analysis on each user group cluster, extracting a core visit sequence, and generating a lifestyle group portrait. Through the technical combination of Wi-Fi handshake data acquisition, sequence compression clustering and sample representativeness correction, comprehensive optimization of urban resident lifestyle identification on coverage integrity, result accuracy, implementation efficiency and cost control is realized, and high-quality data support is provided for urban related decisions.

The utility model belongs to the technical field of coal bunker anti-blocking, and particularly relates to a coal bunker anti-blocking air cannon which comprises a coal bunker body, a coal feeder and a plurality of air cannon bodies, the bottom of the coal bunker body is fixedly communicated with a coal hopper, the coal hopper is communicated with the top of the coal feeder, and a stirring anti-blocking mechanism is arranged between the coal hopper and the coal bunker body. A supporting and fixing mechanism is arranged between the coal bunker body and the air cannon bodies. The anti-blocking device is reasonable in structural design, the air cannon body can be stably supported and fixed, a blocked area can be stably dredged through the air cannon body, meanwhile, disassembly is facilitated, the air cannon body can be conveniently overhauled and maintained in the later period, the anti-blocking effect of a coal bunker is greatly improved through the rotating poke rod and the auger, and the anti-blocking effect of the coal bunker is improved. And the period of dredging by using the air cannon body is prolonged, the air cannon body does not need to be frequently used for dredging, and the using effect of the device is improved.

The invention relates to the technical field of flue gas purification, and discloses a flue gas dedusting, desulfurization and denitrification device and method.The flue gas dedusting, desulfurization and denitrification device comprises a purification tower, a flue gas conveying pipe arranged on the outer side of the purification tower, a maintenance pipe, a flue gas exhaust pipe arranged at the top of the purification tower and spraying equipment arranged in the purification tower; the device further comprises a dispersion assembly arranged in the purification tower, and the dispersion assembly comprises a fixed base station arranged in the purification tower and a mounting frame arranged above the fixed base station. According to the dust removal, desulfurization and denitrification device for the flue gas, by arranging the dispersion assembly, when the flue gas floats upwards after entering the purification tower and is in contact with the upper dispersion net, part of the flue gas penetrates through the upper dispersion net, and part of the flue gas flows along the lower surface of the upper dispersion net and penetrates through the upper dispersion net from other parts, so that the flue gas can be dispersed; the flue gas is prevented from being gathered, full reaction of ammonia water and the flue gas is facilitated, and the flue gas purification effect is improved.

The invention relates to the technical field of high-strength steel production, in particular to an ultrahigh-strength steel cold-rolled material constitutive hardening model construction method. Simulating rolling; measuring mechanical properties; data processing and drawing; and performing linear fitting. The method has the advantages that based on the idea of combining physical experiments and mathematical modeling, a constitutive model is established through the systematized process of'simulated rolling + mechanical property measurement + double logarithmic linear fitting ', data processing software is adopted for data processing and linear regression, a power function hardening model is obtained, and the method has the advantages of being simple in structure, convenient to operate and high in practicability. The method shows excellent fitting precision in 980MPa and 1180MPa ultrahigh strength steel, the model has clear statistical support, and the prediction accuracy and reliability of the material hardening behavior are remarkably improved; the whole modeling process is clear in step and conventional in equipment, only a conventional two-roller cold rolling mill, a universal tensile testing machine, a wire cutting machine and general data processing software are needed to complete the modeling process, and the whole process from sample preparation to model output is high in standardization degree.

The invention discloses a tobacco shred width online sampling detection device and a detection method, and aims to solve the problems of low detection efficiency, insufficient real-time performance, high tobacco shred clustering lap joint rate, transparent pressing plate pollution and the like in the prior art. According to the technical scheme, the tobacco shred width online sampling detection device is arranged on a tobacco shred conveying line, the core of the tobacco shred width online sampling detection device comprises a material receiving and conveying mechanism, a material scattering device of a vibration scattering device, a tobacco shred flattening and conveying mechanism and a visual detection mechanism; the vibration shaking device is used for loosening and raking the clustered and lapped tobacco shreds, so that the lapping rate and the agglomeration rate are reduced, full preparation is made for flattening the tobacco shreds, and the single tobacco shred rate is increased. According to the detection method, detection is completed through differential conveying and primary spreading, four-layer progressive vibration material scattering, conveying, clamping and flattening and visual acquisition of high-flattening-rate tobacco shred images. According to the scheme, the uniformity of tobacco shred bulk materials is greatly improved, the clustering lap joint rate is reduced, pressing plate pollution is avoided, real-time online detection is achieved, the detection efficiency and continuity are improved, the detection efficiency is improved, and guarantee is provided for stable cigarette quality.

The present application relates to the technical field of energy storage, and discloses an energy storage system coupling a high-temperature heat pump and compressed air, which comprises a steam turbine power cycle subsystem, a high-temperature heat pump subsystem, a non-combustion compressed air energy storage subsystem and a molten salt heat storage system; steam turbine exhaust is used as a low-temperature heat source of the high-temperature heat pump, a steam turbine condenser is omitted, the temperature of the low-temperature heat source of the heat pump is raised to reduce the temperature difference and improve the COP of the heat pump; the molten salt heat storage is used as a unified high-temperature heat source, which drives the steam turbine to generate power, heats the air before the expansion of compressed air, and absorbs the excess high-temperature heat of the heat pump. The present application effectively improves the energy efficiency of the heat pump and the power generation efficiency of compressed air, realizes efficient energy utilization, and is suitable for new energy consumption and long-time peak regulation of the power grid.

The utility model provides a chamfering device for a lever in a copper pipe frame, relates to the technical field of machining of parts of the copper pipe frame, and aims to solve the problems that after a lever structure of an existing part of the copper pipe frame is blanked, the lever needs to be chamfered, an existing chamfering mode is manually processed, the processing efficiency is low, the processing period is long, and the processing cost is high. The automatic chamfering machine comprises a workbench, the workbench is rotationally connected with an indexing table through cooperation of a motor and a rotor, multiple sets of stations are evenly distributed on the indexing table, levers are movably connected in the stations, pressing blocks are fixedly connected to the positions, located on the indexing table, of the upper portions of the levers, and a feeding mechanism is installed on the left side of the indexing table. The feeding mechanism comprises a frame, a stock bin is installed on the frame, the stock bin is filled with a plurality of sets of levers, and a stacking area is arranged above the stock bin.

The invention discloses a common-bottom bearing / heat insulation integrated heat insulation structure for a low-temperature storage tank and a forming method and application of the common-bottom bearing / heat insulation integrated heat insulation structure. The heat insulation layer structure comprises an epoxy resin low-temperature adhesive, a polyurethane low-temperature adhesive, a high-pressure-bearing light polyurethane foam layer, a closed prime coat, varnish and a polyurea protective layer. Results show that the density of the high-pressure-bearing polyurethane foam of the common-bottom furnace test piece is not more than 90 kg / m < 3 >, the compression strength is not less than 0.50 MPa, the thermal conductivity is about 0.022 W / (m.K), and the key performance meets design indexes. Compared with an existing model common-bottom PMI core material interlayer scheme, the machining period is shortened by about 85%, the manufacturing cost is reduced by about 94%, the weight of a heat insulation layer is reduced by about 38%, and cost reduction and efficiency improvement are achieved. And meanwhile, by controlling the sweeping speed of the spray gun during spraying operation, the envelope range is determined, the process allowance is guaranteed, and the quality stability of common-bottom products is effectively improved.

The invention discloses a process for reducing oxidation burning loss of a medium-thickness plate heating furnace, which belongs to the technical field of ferrous metallurgical equipment maintenance and production processes, and specifically comprises the following steps: (1) arranging a charging organization for production in a manner that a steel billet discharged from a continuous casting machine is directly conveyed in a hot charging manner or is conveyed in a hot charging manner or is conveyed in a hot charging manner, and a cold charging blank is used as an auxiliary manner; (2) a low-temperature heating process is adopted, and the heating temperature is controlled to be 1120-1160 DEG C; (3) the in-furnace time of the cold charging blank is controlled to be larger than or equal to 8 min / cm, and the in-furnace time of the hot charging blank of hot charging direct conveying or hot charging hot conveying is controlled to be larger than or equal to 6 min / cm; and (4) the residence time of each section of the heating furnace is controlled, the residence time of the heating section is smaller than or equal to 45 min, and the residence time of the soaking section is smaller than or equal to 40 min. According to the structure of the heating furnace, through reasonable production organization, optimization of the heating process and control of time nodes, the oxidation burning loss of the surface of the steel billet in the heating process is reduced to the minimum, and the production efficiency is improved. And meanwhile, the shutdown time of a production line is shortened, and the comprehensive economic benefits of the production line are improved.

The invention relates to a chip carrier switching device, and belongs to the technical field of semiconductor packaging equipment. The device comprises a platform and a switching structure, the platform is provided with at least one first carrying disc and an actuating channel, the first carrying disc is erected above the platform, a gap is reserved between the first carrying disc and the platform in the vertical direction, and the actuating channel penetrates through the platform; the switching structure is arranged at the bottom of the platform and close to the actuating channel, the switching structure comprises a carrying table and a moving mechanism, a second carrying disc and a lifting carrying disc which are adjacent in position are arranged on the carrying table, the second carrying disc is erected above the platform and is as high as the first carrying disc, the lifting carrying disc is connected with a linkage mechanism, and the linkage mechanism moves in the actuating channel; and the moving mechanism is used for adjusting the height of the lifting carrying disc, so that the height of the lifting carrying disc is equal to or lower than that of the second carrying disc, and the moving mechanism drives the carrying table to move transversely. The machine table has the effect of improving space waste on the machine table.

The utility model discloses a fireproof oil smoke purifier which comprises an upper buckle plate, a lower buckle plate and a filter screen plate, the upper buckle plate and the lower buckle plate are matched and clamped, the filter screen plate is arranged between the upper buckle plate and the lower buckle plate, stainless steel wires are uniformly wound on the outer portion of the filter screen plate in parallel, and the stainless steel wires are connected with the filter screen plate. According to the fireproof oil smoke purifier, the stainless steel wire, the air hole A and the air hole B which are wound on the surface of the filter screen plate in parallel can overcome the defects of large oil smoke specific gravity, difficulty in self-flowing and large resistance in the filtration and adsorption process; according to the fireproof oil smoke purifier, the defect of low trapping efficiency is effectively overcome, the effects of ventilation and separation are achieved, when oil smoke passes through the purifier, reverse and downward turbulent flow is formed, the contact surface is enlarged, accumulated oil is discharged, and the fireproof oil smoke purifier does not consume water and electricity in operation, does not need to change an original ventilation power system, does not need to replace parts and does not generate extra cost. The pipeline cleaning period is greatly prolonged, and the use expenditure of a user is reduced.

The utility model provides an anti-rat and anti-termite cable for a photovoltaic system, and aims to solve the problem that after being laid, a traditional cable is bitten by rats and termites in the environment, so that the structure is damaged, and hidden dangers are caused to an electric power system. The cable mainly comprises a plurality of stranded tin-plated soft copper conductors located in the center, an insulating layer is wrapped on the periphery of each tin-plated soft copper conductor, a composite layer is wrapped on the periphery of each insulating layer, a sheath is wrapped on the periphery of each composite layer, and material master batches used for repelling rats and ants are added in the sheath and the composite layers. After the cable is laid, the sheath and the composite layer are both provided with material master batches, chemical odor for repelling rats and ants can be dissipated, the dissipation period is longer, and the service life is longer; even if the chemical rat repelling effect is weakened and the sheath on the outer layer is gnawed and broken, the composite layer can still play a good role in physical protection.

The present invention discloses a control method for a range hood and a range hood applied with the control method, wherein the control method for the range hood is a control method for a cleaning device of the range hood, wherein the range hood comprises an air inlet component, a fan system and a cleaning device for cleaning the fan system, wherein the cleaning device can spray cleaning liquid to the fan system, and is characterized in that: the control method is a pre-coating procedure for the cleaning liquid, comprising the following steps: 1) performing a pre-coating self-check procedure to ensure that the air inlet component is closed, the cleaning liquid is sufficiently sprayed, and the sprayed parts are located in the fan system; 2) starting a pre-coating protection procedure, comprising the following steps: 2.1) the fan system operates at the lowest gear; 2.2) ensuring that the rotation speed of the fan system is within a preset range of [n1, n2], wherein n1 is a preset lower limit of the rotation speed, and n2 is a preset upper limit of the rotation speed, and then proceeding to step 2.3); 2.3) spraying cleaning liquid to the fan system; 3) completing the pre-coating procedure.

The present application belongs to the technical field of plant induced regeneration, and particularly relates to a high-efficiency artificial propagation method of Dendrobium candidum, comprising the following steps: taking two-year-old stem segments with nodes as materials, cutting the stem segments into appropriate sizes, and disinfecting the stem segments; and culturing the stem segments in a culture medium A for 90 days, and then completing the proliferation and rooting integration through a direct organogenesis route. The present application realizes the cyclic production of Dendrobium candidum, and the whole culture process can be completed only by using one culture medium, greatly improving the artificial in-vitro propagation efficiency, and the proliferation coefficient is completely comparable to the seed asymbiotic germination method, and the problems of large offspring trait separation and different qualities caused by the seed asymbiotic germination are solved, and the quality and yield of seedlings are greatly improved. The present application can provide a brand-new technical support for the factory-scale growth of Dendrobium candidum, so as to achieve the purpose of cultivating seedlings with genetic stability and excellent quality to improve the artificial planting efficiency, and the cost is low, the cycle is short, and the quality and survival rate of seedlings are high.

The utility model discloses a spraying dust-settling device for recycled aggregate production, which comprises a crusher box body, a feeding bin is arranged at the top of the crusher box body, two crushing rollers are arranged in the feeding bin, a liquid collecting cavity is arranged in the crusher box body, the liquid collecting cavity is communicated with the feeding bin, a notch is arranged in the middle of the crusher box body, and the notch is communicated with the liquid collecting cavity. Two lug plates are fixed to the middle of one side of the crusher box body, rotating rollers are arranged between the two lug plates and in the liquid collecting cavity, and the two rotating rollers are arranged in parallel. The piston rod is pushed upwards to drive the piston to move upwards, when the piston moves upwards, purified water collected in the transfer cylinder can be discharged into the filter cylinder through the second guide pipe, at the moment, the flow direction of the purified water passing through the filter cotton is from top to bottom and is just opposite to the direction of the sewage passing through the filter cotton, and at the moment, the purified water plays a backwashing role. And the filter cotton can be preliminarily cleaned by backwashing, so that the period of dismounting the filter cotton for cleaning can be relatively prolonged.

A lifting method and cylinder end lifting tool for a complete low-speed marine diesel engine, the cylinder end lifting tool comprising a bottom plate, a side plate, two main lifting plates and four lifting nuts; the bottom plate is arranged horizontally, and a through hole for passing the cylinder head stud is provided on the plate surface, and the position of the through hole corresponds to the position of the mounting hole on the cylinder head, the two main lifting plates are vertically welded to both sides of the upper plane of the bottom plate, the main lifting plate is provided with a lifting hole for passing a sling or a shackle, the side plate is vertically welded between the two main lifting plates and welded and fixed to the bottom plate; the cylinder head stud passes through the mounting hole of the cylinder head and the through hole of the bottom plate, and the cylinder end lifting tool is fixed to the upper plane of the cylinder head through the lifting nut. The present invention solves the problem that the original cylinder lifting tool cannot meet the demand when lifting the complete low-speed marine diesel engine, and achieves the effect of reducing costs and shortening cycles while ensuring the safety of the lifting operation.

The invention provides a production method of green pellets for steelmaking, and relates to the technical field of green pellet production, and the production method comprises the following steps: drying, grinding and batching concentrate raw materials in a concentrate bin to form powdery materials; the powdery material is input into a pelletizer, and green pellets are produced; screening the green pellets, and outputting qualified green pellets and wet returned materials; one part of the wet return material is input into a pelletizer, and the other part of the wet return material is input into a concentrate bin; the problems that in the prior art, wet return materials all return to a pelletizing bin to participate in pelletizing, the quality and yield of green pellets are affected, the hopper storage of the pelletizing bin is too high, and the particle size of the materials participating in pelletizing is affected are solved.

The utility model relates to filter tank technical field, and disclose a kind of high-efficiency energy-saving siphon filter tank device, comprising: filter box, intercommunication inlet pipe, inlet water filter box, outlet tank, the top surface of the filter box is fixedly connected with inlet water filter box, the bottom surface of the inlet water filter box is fixedly connected with intercommunication inlet pipe, the inside of the filter box is provided with intercommunication inlet pipe, the back of the filter box is equipped with mounting hole, the inboard of the mounting hole is fixedly connected with outlet tank;Preliminary filtration water distribution subassembly of being set in the inboard of inlet water filter box;Filtering subassembly of being set in the inside of filter box;Siphon subassembly is set in filter box cover top, the high-efficiency energy-saving siphon filter tank device of the utility model, through inlet water filter box primary filtration, filter box cover multilayer composite filtration precision and cycle are promoted, siphon subassembly linkage flow control saves more than 30% energy consumption, can be automatically backwash, waste water is discharged, modular structure reduces maintenance, and compact is widely applicable, solve traditional filter tank problem.

The invention relates to the technical field of garden pruning equipment, in particular to garden pruning equipment which comprises a connecting rod assembly, a control mechanism is fixedly mounted at the tail end of the connecting rod assembly, and a cutting mechanism is fixedly mounted at the front end of the connecting rod assembly; the cutting mechanism comprises a U-shaped frame, a driving assembly is installed between the two sides of the U-shaped frame, a cutter assembly is installed on the driving assembly in a transmission mode, a cutter holder assembly is fixedly installed at one end of the U-shaped frame, and a grinding assembly is arranged in the cutter holder assembly; the cutter assembly comprises a mounting batten; a cavity is formed in the mounting batten, spray holes are formed in the bottom surface of the mounting batten, a pipe joint is mounted on one side of the mounting batten, and a liquid supply assembly is fixedly connected to the end, away from the mounting batten, of the pipe joint; through the arrangement of the liquid supply assembly and the mounting batten, synchronous medicine feeding operation can be carried out in the branch cutting-off process; and through the arrangement of the grinding assembly, the cutter can be automatically ground in each cutting operation process.