174 results about "High load" patented technology

The invention relates to the technical field of dust collector control, and discloses a multi-motor cooperative speed regulation and energy efficiency optimization control method and device for a dust collector, and the method comprises the steps: monitoring the rotating speed, current, voltage, temperature and other operation parameters of a plurality of motors in real time, and determining the working load state of each motor through a load recognition model. Different cooperative speed regulation strategies are matched according to load states, such as PID control for low loads, fuzzy logic control for medium loads and model prediction control for high loads. A dynamic weight distribution algorithm is used for adjusting the target rotating speed, and an energy efficiency optimization algorithm is used for optimizing power distribution. Meanwhile, environmental parameters are considered, and control parameters are optimized through a self-adaptive parameter adjustment model. And the system also has the functions of adjusting strategies according to load fluctuation and power consumption, motor priority ranking during high load, energy efficiency algorithm parameter optimization, rotating speed adjustment during filter screen blockage, motor state monitoring and prediction and the like, so that accurate speed regulation and efficient energy conservation are realized, and the performance and the intelligent level of the dust collector are improved.

The invention relates to the technical field of boiler transformation, in particular to a half-capacity storage type / direct blowing type coal pulverizing system, a coal pulverizing method and a boiler, pulverized coal treatment paths on the two sides of a coal mill are improved, pulverized coal treated by the coal mill is divided into a direct blowing mode and a storage mode, and when a thermal power generating unit operates at a high load, the pulverized coal is stored in the direct blowing mode. The fuel is directly delivered to a hearth to participate in combustion in a direct blowing mode, and stable load supply is ensured; pulverized coal separated by a coal mill is collected and stored in a storage mode, and when the power demand fluctuates, a proper amount of pulverized coal is extracted and mixed with primary air to participate in combustion according to the load requirement. By means of the coal pulverizing mode, the frequency of frequent starting and stopping of the coal mill can be reduced when the thermal power generating unit operates in a low-load mode, the response speed and flexibility of the thermal power generating unit to load changes are improved, and the economical efficiency and stability of the system are enhanced. The problems that the stability of a thermal power generating unit system is affected and energy consumption is large due to frequent starting and stopping of an existing coal mill are solved.

The invention discloses a harvester walking control method, a harvester and electronic equipment, and relates to the technical field of agricultural machinery. The harvester walking control method comprises the steps that in response to an automatic control instruction, engine output power and walking handle angle information are obtained in real time; on the basis of the engine output power, a speed adjusting type is determined and obtained; on the basis of the walking handle angle information, a speed adjusting value is determined and obtained; and controlling the walking speed of the harvester based on the speed regulation type and the speed regulation value. The walking electric control of the harvester is realized, the intelligent level of the harvester is improved, the control is simple and convenient, the output power of the engine is taken as a reference target, the walking speed is automatically adjusted, and when the output power of the engine is relatively high, the harvester can be automatically decelerated and adjusted, so that the high-load operation can be effectively reduced, and the working efficiency is improved. And the blockage probability of the harvester during working is reduced.

The invention discloses a pruning auxiliary device for landscape landscaping, and relates to the technical field of landscaping pruning, the pruning auxiliary device comprises a moving mechanism, the top of the moving mechanism is fixedly provided with a pruning mechanism, and the top of the moving mechanism is fixedly provided with a crushing mechanism; the trimming mechanism comprises an electric turntable I; according to the device, a gear transmission system is driven by a motor, intelligent clamping of branches is achieved, metal microneedles are accurately inserted into the branches, the branches are effectively fixed, damage to barks due to shaking or sliding is reduced, meanwhile, scattering of the pruned branches is avoided, and by means of a pressure sensor and a distance measuring sensor after clamping, the device is convenient to use and high in practicability. The diameter of a branch can be detected in real time, the rotating speed and torque of the motor can be automatically adjusted according to data, the optimal matching state between a pruning knife and the branch in the pruning process is ensured through the self-adaptive adjusting capacity, the pruning efficiency and quality are improved, meanwhile, excessive abrasion of a cutter due to long-time high-load operation is avoided, and the service life of the pruning knife is prolonged. And the service life of the cutter is prolonged.

The invention discloses environment-friendly metal cutting oil with high bearing capacity and high wear resistance, and belongs to the technical field of metal cutting fluid. The cutting fluid is composed of diisooctyl sebacate, a phosphate amine salt extreme pressure additive, a borate additive and a sulfurized extreme pressure additive, the sulfurized extreme pressure additive is sulfurized fatty acid ester and dialkyl pentasulfide (Rc2540), and the addition amount of the phosphate amine salt extreme pressure additive is 0.12-0.80% of the weight of base oil; the addition amount of the borate additive is 0.05-1.45% of the weight of the base oil, the addition amount of the sulfurized fatty acid ester is 0.10-0.85% of the weight of the base oil, and the addition amount of the dialkyl pentasulfide (Rc2540) is 0.20-0.85% of the weight of the base oil. The bearing capacity (Pb) of the cutting oil can reach more than 920N, and the diameter (Db) of a low-load long grinding scar can be less than 0.35 mm.

The utility model belongs to the field of seed-metering devices, particularly relates to an air-blowing and electric-driven seed-metering device of a compound seeding machine, and aims to solve the problems that an existing spoon-type seed-metering device finger clamp seed-metering device cannot adapt to high-speed seeding, an air-blowing seed-metering device cannot be developed in China at present, all seeding machines corresponding to the first three seed-metering devices adopt a land wheel transmission technology, and the seeding efficiency is low. In order to solve the problem that land wheels are easy to slip if running at a high speed under high load or working land is wet and slippery, the utility model provides the following scheme that the seeding device comprises a seed box, a seeding wheel and a display mounted in a tractor cab, the seeding wheel can be mounted through a mounting mechanism, and the seed landing speed can be increased through an air blowing mechanism; according to the invention, a good seeding effect is achieved, the complexity, failure rate, cost and weight of a transmission system are reduced through centralized driving, the continuity of operation and the purchase cost of agricultural implements are ensured under the requirement of high-strength operation, all seeding trays can be replaced once, and the working efficiency is high when crops are switched.

The invention relates to the field of unmanned aerial vehicles, in particular to a high-load pesticide spraying unmanned aerial vehicle adopting a hydrogen fuel cell. Comprising an unmanned aerial vehicle body with a pesticide spraying system, a base for fixedly installing a hydrogen fuel cell is arranged on the unmanned aerial vehicle body, and a stabilizing mechanism for keeping the hydrogen fuel cell stable is arranged on the base; the stabilizing mechanism comprises a carrier for accommodating the hydrogen fuel cell therein and a vibration reduction assembly which is matched with the carrier to perform vibration reduction on the hydrogen fuel cell. According to the unmanned aerial vehicle, through matched connection of the buckle structure between the carrier and the hydrogen fuel cell, it is ensured that the hydrogen fuel cell keeps a stable and reliable working state when the unmanned aerial vehicle body executes a pesticide spraying task, the hydrogen fuel cell is tightly limited in the carrier along with starting of the vibration reduction assembly, the hydrogen fuel cell is further stabilized, and the stability of the unmanned aerial vehicle is improved. The stability and the reliability of the hydrogen fuel cell are improved, and the operation efficiency and the prevention and control effect of the unmanned aerial vehicle body under the complex flight condition are enhanced.

The invention relates to the technical field of refrigerators, in particular to a refrigeration cycle system for a refrigerator, the refrigerator and a working method of the refrigerator. The refrigeration cycle system comprises a compressor, a condenser, a filter, a throttling device, a liquid storage tank, an evaporator and an air return pipe which are sequentially connected in series through pipelines, a first control valve is arranged on the pipeline between the liquid storage tank and the evaporator, and a second control valve is arranged on the pipeline between the liquid storage tank and the throttling device. The liquid storage tank is pre-filled with a liquid refrigerant, and the refrigerant is quickly guided into the evaporator and then is instantly vaporized during first use by utilizing a siphoning effect, so that instant refrigeration is realized, the refrigerator can achieve an obvious refrigeration effect within a few minutes, and the first use experience is remarkably improved; secondly, the starting load can be reduced by means of siphoning, the compressor is prevented from operating in a high-load state for a long time in the initial stage, and the service life of the compressor is prolonged; in addition, the system is simple in structure, no complex mechanical device needs to be additionally arranged, and the system can be achieved only through cooperation of the liquid storage tank and the control valve.

The invention relates to the technical field of sludge dewatering, and discloses a water supply and drainage sludge dewatering machine which comprises a filter pressing rack, two mounting frames are fixedly mounted on the filter pressing rack, a plurality of mounting holes distributed in a linear array are formed in the mounting frames, rotating rods are rotatably mounted in the mounting holes, and the rotating rods are connected with the filter pressing rack. A mud blocking block matched with the upper filter pressing belt is fixedly mounted at the bottom of the rotating rod, a gear is fixedly mounted at the top of the rotating rod, a rack meshed with the gear is mounted on the mounting frame in a sliding manner, cams are symmetrically and rotationally mounted at the two ends of one mounting frame, and a pre-pressing assembly is arranged on the filter pressing rack; the mud blocking block is driven to turn over during use, so that periodic alternation of sludge separation positions is realized, areas, bearing pressure, of the filter pressing belt are uniformly distributed, abrasion acceleration caused by local continuous high load is avoided, the overall service life of the filter pressing belt is prolonged, the switching action of the mud blocking block is synchronous with the movement of the filter pressing belt, and continuous and stable operation of equipment is guaranteed.

The invention provides an oil-containing polymer composite material as well as a preparation method and a mold pressing method thereof, and belongs to the technical field of polymer materials. The composite material is composed of a polymer matrix material, a lubricant, a filler and an auxiliary agent, the excellent self-lubricating performance is achieved by optimizing the proportion of all the components and a compounding process, the preparation method of the composite material adopts the processes of mixed melting, mold pressing, vulcanization, extrusion molding or injection molding and the like, the processes are simple, and industrial production is easy. The material is widely used for manufacturing various mechanical parts, such as bearings, gears, sliding blocks, guide rails and the like, and particularly has excellent performance in high-load, low-friction and less-maintenance industrial environments.

The invention provides a real-time lubrication control method and device for a gear transmission system. The method comprises the steps that multi-dimensional collection is conducted on operation state parameters of a gear pair, and a working condition state data set is generated; determining shear rate distribution data and oil film thickness distribution data of the lubrication contact area according to the working condition state data set; inputting the obtained data into a neural network model, and performing joint prediction on the oil film rigidity and the tooth surface friction coefficient of the lubrication contact area to generate a joint prediction result; according to the joint prediction result, whether the gear pair lubrication strategy meets the safe operation requirement or not is judged, and a corresponding lubrication level is generated; and performing differential treatment on the oil film rigidity and the tooth surface friction coefficient according to the lubrication grade, determining a lubrication offset parameter, and performing self-adaptive adjustment on the lubrication control parameter according to the lubrication offset parameter. According to the scheme, the lubrication parameters are adjusted in time according to the joint prediction result, and precise adjustment and optimization of the gear lubrication state under the high-load and high-speed working condition are achieved.

The invention discloses a sliding bearing structure of a wind power partitioned elastic trapezoidal main shaft. Comprising a segmented sliding bearing design, and trapezoidal cross-section staggered structures are symmetrically arranged between contact surfaces of a bearing unit and a main shaft. Aiming at the problems of weak self-aligning capability, concentrated contact stress and the like caused by insufficient elastic compensation of a wind power main bearing under high load, optimization is realized through the following innovations: a trapezoidal structure is additionally arranged on the contact surface of a block bearing, and the overall radial compliance of the bearing is enhanced by utilizing the elastic deformation characteristic of a trapezoidal cross section staggered structure; the elastic units are distributed in a gradient mode in the circumferential direction, a self-adaptive oil film pressure field is formed by combining the elastic units with the stepped lubricating flow channels, and the unbalance loading compensation capacity and the dynamic pressure lubricating efficiency of the spindle are synchronously improved. The gaps promote heat dissipation circulation and discharge of abrasion chippings, and local abrasion is avoided. By means of the structure, when the main shaft is strongly bent or moves, displacement deviation is absorbed through deformation of the elastic units, the self-aligning angle is increased, the contact stress peak value of the edges of the partitioning units is reduced, and the eccentric wear risk is reduced.

The present invention discloses a charging pile, specifically relating to the field of charging piles, comprising a main body, a liquid cooling heat dissipation mechanism fixedly mounted on one side of the main body, an air cooling heat dissipation mechanism slidably mounted on one side of the liquid cooling heat dissipation mechanism, an auxiliary heat dissipation mechanism provided inside the liquid cooling heat dissipation mechanism, the main body comprising a charging pile body, a support frame fixedly mounted on the bottom of the charging pile body, a charging line electrically connected to the bottom of the charging pile body, the liquid cooling heat dissipation mechanism comprising a positioning frame fixedly mounted on one side of the charging pile body, a hollow plate fixedly mounted on one side of the positioning frame. The present invention achieves efficient heat dissipation and stable operation of the charging pile under high load operation by combining liquid cooling heat dissipation, air cooling heat dissipation and dustproof design, effectively preventing dust from clogging the heat dissipation path, and preventing the charging pile from performance degradation or damage due to overheating, thereby maintaining stable operation of the main body.

The invention provides polyurea-based lubricating grease and a preparation method thereof. The polyurea-based lubricating grease comprises the following components: (A) phosphate ester salt which accounts for 0.1-10% of the total weight of the polyurea-based lubricating grease; (B) an antioxidant accounting for 0.1%-10% of the total weight of the polyurea-based lubricating grease; (C) an antirust agent accounting for 0.1-5% of the total weight of the polyurea-based lubricating grease; (D) a polyurea-based thickening agent which accounts for 1-30% of the total weight of the polyurea-based lubricating grease; and (E) a lubricating base oil which constitutes the main component of the polyurea-based grease. The polyurea-based lubricating grease provided by the invention has excellent extreme pressure anti-wear performance and oxidation resistance, also has good colloid stability and mechanical stability, and can be competent for harsh working conditions such as high temperature, high speed, high load, wateriness and the like.

The utility model discloses a long-life motor pump under the high load state, including: shell subassembly, pump water piece, transmission subassembly and drive piece, shell subassembly includes water inlet and outlet cover and shell, the water inlet and outlet cover is provided on the one end of shell, and the water inlet and outlet cover is provided with double-headed water nozzle, the drive piece is provided with the drive piece, the drive piece is provided with the drive piece. A water inlet and a water outlet are formed in the double-end water nozzle, the water pumping piece is arranged on the shell and used for pumping liquid in from the water inlet and pressing the liquid out from the water outlet, the transmission assembly comprises an impeller, a bearing and an eccentric wheel which are sequentially arranged, the impeller is connected with the water pumping piece, and the bearing is connected with the eccentric wheel. The eccentric wheel is sleeved with the bearing, the bearing is sleeved with the impeller, and the driving piece is used for controlling the transmission assembly to drive the water pumping piece to work. According to the motor pump, the bearing is arranged to replace a central spindle to solve the phenomenon that the impeller and the eccentric wheel are worn through after long-term use, and the service life of the motor pump is prolonged.

To efficiently perform a mowing work by suppressing grass which is left from mowing even when a high load is applied to a mowing motor in a mowing vehicle.SOLUTION: A mowing vehicle includes a mowing device. The mowing device includes a mowing blade which is driven by a plurality of mowing motors. When it is detected that a load of at least one mowing motor in the plurality of mowing motors is a high load, a control device performs control so as to operate the mowing motor of the high load in accordance with a high load response output map. The high load response output map is specified in such a manner that a border rotation speed when switching from an upper limit torque fixed region in which an upper limit torque value is fixed to an upper limit torque reduced region in which the upper limit torque value is reduced with an increase in the rotation speed of the mowing motor is lower than an upper limit rotation speed of the upper limit torque fixed region in output characteristics of the mowing motor which are determined from the mowing motor and a maximum voltage that can be outputted from the mowing motor.SELECTED DRAWING: Figure 6

The bearing closing-in device comprises a closing-in device body, oil injection tanks are fixedly installed on the two sides of the top of the closing-in device body, push rods are fixedly installed on the two sides of the top of an inner cavity of each oil injection tank, a supporting plate is fixedly installed at the output end of each push rod, and a pressurizing plate is fixedly installed at the bottom of each supporting plate through a support. An oil bag is fixedly installed at the bottom of an inner cavity of the oil injection box, and one side of the oil bag communicates with a spray head through a pipeline. According to the technical scheme, the problems that an existing bearing closing-in device does not have an automatic oil injection function, lubricating grease or lubricating oil needs to be regularly and manually supplemented, especially under the severe working conditions of high load, high temperature, high dust and the like, the oil injection period can be shortened to be once per day or per shift, manual operation consumes time and labor, the labor cost of enterprises is increased, and the working efficiency is high are solved. If oil is not injected in time due to negligence or scheduling problems, the temperature of the bearing closing-in device can be rapidly increased due to dry friction, and the problems of surface abrasion, gluing and even locking are caused.

Provided are an apparatus and a method for biological treatment of an organic wastewater where it is possible to efficiently remove organic matter under high load while reducing the amount of air used for aerobic biological treatment and substantially decreasing the amount of sludge generated. The apparatus is characterized by being provided with: a first biological treatment tank 3 which has a fixed-type immobilized biocarrier and an aeration means; a second biological treatment tank 4 to which a treated liquid from the first tank 3 is introduced so as to perform treatment using suspended microorganisms, and which has an aeration means; and a sedimentation tank 5 in which solid-liquid from the second tank 4 is separated said liquid into settled sludge and treated water, wherein the apparatus has an influent line through which an organic wastewater is introduced to the first tank 3 and the second tank 4, and a return line 6 through which part of settled sludge discharged from the tank 5 is returned to the tank 4.

The invention belongs to the technical field of forestry engineering, and provides a castanopsis hystrix improved variety and eucalyptus mixed forest litter resource regulation and control method, which comprises the following steps: setting a quadrat region based on a castanopsis hystrix and eucalyptus mixed forest, and dividing an ecological conflict region; calculating a litter load threshold value of the ecological conflict area and dividing a high-load area; regulating and controlling litters in the high-load area, and performing demand analysis based on the regulated and controlled high-load area to obtain a decomposition demand coefficient; judging whether the high-load area is a strong decomposition area or not, performing secondary regulation and control on the strong decomposition area, obtaining a periodic decomposition rate and judging whether the periodic decomposition rate accords with expectation or not; if so, acquiring related growth data of the castanopsis hystrix in the regulation and control region twice, and performing growth analysis on the castanopsis hystrix to obtain an average growth index; evaluating the growth state of the castanopsis hystrix based on the average growth index; the method is beneficial for improving the pertinence and effectiveness of ecological management of the mixed forest.

The invention relates to the technical field of agricultural hydraulic engineering, in particular to an intelligent decision-making method and control system for precise irrigation for agricultural hydraulic engineering, and the method comprises the steps: constructing a global simulation model to calculate theoretical operation variables, and carrying out the simulation evaluation and variable optimization processing through the collection of a historical operation sequence of a function module. The operation variables can be adjusted according to the actual performance, the problems of water resource waste, energy consumption increase and equipment service life shortening caused by insufficient data acquisition, uneven resource distribution and high-load equipment operation in the prior art are solved, and precise irrigation and efficient resource utilization are achieved.

The invention discloses a high-load bearing lubricant for a Morgan rolling mill and a preparation method of the high-load bearing lubricant. The lubricant comprises synthetic base oil, modified titanium-silicon composite particles, slow-release antioxidant microcapsules, an organic molybdenum anti-wear agent, an extreme pressure additive, an environment-friendly ternary antirust agent and a viscosity index improver. Modified nanoparticles are prepared through atomization melting and solvent heat treatment, antioxidant microcapsules are prepared through a polyethylene glycol coating technology, and then the composite lubricating system is formed through high-temperature and high-shear mixing. The lubricant disclosed by the invention has excellent extreme pressure anti-wear performance, thermal oxidation stability, anti-rust and anti-corrosion capability and good oil-water separation performance, and is suitable for a rolling mill bearing lubricating system under severe working conditions of high load, high temperature, high humidity and the like. The lubricant can effectively prolong the service life of the bearing and reduce the operation and maintenance cost of equipment, and has a good industrial application prospect.

The present application relates to the field of data processing, especially to a kind of intelligent farm-oriented agricultural machinery operation data security transmission method, the method comprises: determining high load channel;Determine that data transmission abnormal event occurs;Determine abnormal agricultural machinery;Determine composite abnormal agricultural machinery;Determine agricultural machinery adjustment instruction and adjustment threshold, the present application filters high load channel by load crowded index;Determine transmission abnormal event based on collision rate and retransmission rate;Subsequently, by sending success rate and signal receiving power, construct agricultural machinery operation feature vector and identify outlier agricultural machinery;Again, accurately locate composite abnormal agricultural machinery that is suppressed by long distance and frequently switched;Finally, according to the spatial position of composite abnormal agricultural machinery and cause-effect chain relationship, generate adjustment instruction, and correct threshold according to the change of transmission abnormal index, effectively solve the problem of abnormal identification lag and low data transmission accuracy due to the inability to adapt to complex and changeable operation conditions.

The corrugated carton with the high bearing capacity comprises a carton body, the edge of the lower surface in the carton body is fixedly connected with a bottom frame, the edge of the corner of the bottom frame is fixedly connected with a supporting rod, the upper surface of the supporting rod is fixedly connected with a top frame, the upper surface of the top frame is provided with a sliding groove, the sliding groove penetrates through the lower surface of the top frame, and the lower surface of the top frame is fixedly connected with the bottom frame. A sliding plate is slidably connected into the sliding groove, a limiting plate is fixedly connected to the upper surface of the sliding plate, the lower surface of the limiting plate makes contact with the upper surface of the top frame, a sliding groove is formed in the position, close to the center of the box body, of the side surface of the sliding plate, a magnet block is fixedly connected to the side surface in the sliding groove, and an inserting block is slidably connected into the sliding groove; the inserting block is provided with a clamping groove away from the sliding plate. By means of the structure, distribution of the space in the carton body can be flexibly adjusted according to application requirements, so that the carton is suitable for separating objects of different sizes, and the application range of the carton is widened.

An egg conveyor is used to convey eggs (11), in particular in larger egg-laying facilities. In the case of an egg conveyor with a longer conveying path, the conveyor chain (21) which can be driven circumferentially along the conveying path (10) is subject to high loads. In order to keep the load of the conveyor chain (21) within limits in the case of a longer conveying path, an intermediate drive (28) is provided in addition to the main drive (27). The driving force is thus introduced into the conveyor chain at different positions, so that it is subject to less load. This also leads to a smoother driving of the egg conveyor. Preferably, in the area of ​​the intermediate drive, the conveyor chain in the area of ​​the upper branch is guided along an arc-shaped bulge. This results in a more favorable overlap coefficient between the conveyor chain and the drive gear driving the conveyor chain. The intermediate drive can be converted into a conveyor chain in the area of ​​the upper branch or the lower branch, which can be selectively driven. The intermediate drive can therefore be used more widely.

The invention relates to the technical field of cable branch boxes, and particularly discloses a cable branch box with a modular heat dissipation structure, which comprises a box body and filter assemblies arranged on two sides in the box body, each filter assembly comprises an inner filter plate and an outer filter plate, the outer filter plate is fixedly arranged on the box body, and the outer filter plate is fixedly arranged on the box body. The filter plate on the inner side is arranged on the filter plate on the outer side in a sliding manner, and a cleaning assembly is mounted on the filter plate on the inner side; air holes are formed in the two filter plates, and the air holes in the two filter plates are mutually overlapped, so that when the inner filter plate and the outer filter plate relatively slide, the filter plate on the outer side is cleaned, and the air holes can be closed or conducted; through a modularized sliding structure, the equipment is completely closed to prevent dust from entering when the load is low, the air duct is opened to dissipate heat when the load is high, and the four functions of mode switching, main filter screen wiping, clean airflow generation and air inlet filter screen self-cleaning are simultaneously realized by utilizing the pushing piece.

The invention provides an arch breaking, discharging and conveying device for a white carbon black powder bin, and belongs to the technical field of powder conveying devices. Comprising a conveying bin body and a driving mechanism installed at the bottom of the conveying bin body, the driving mechanism comprises a rotary discharging barrel connected to an outlet of the conveying bin body, a plurality of connecting blocks are fixedly arranged on the inner wall of the rotary discharging barrel, and a plurality of primary arch breaking mechanisms for pre-breaking arches at the edge of the conveying bin body are arranged on the inner wall of the rotary discharging barrel. By means of the mode, it can be avoided that during arch breaking, the material turning and arch breaking cutter with the large contact area with powder inside the conveying bin body is directly driven to rotate, and it is avoided that the material turning and arch breaking cutter is directly subjected to resistance and pressure borne by large-torque output and a stirring structure; therefore, the problems of fatigue wear, deformation and even breakage of the material turning and arch breaking cutter due to overload stress for a long time are solved, the problems of serious heating and sharp energy consumption increase caused by the fact that the motor is in a high-load working condition for a long time are solved, the arch breaking effect of the device is improved, and the service life of the device is prolonged.

The utility model relates to the technical field of mechanical transmission, and discloses a waist-drum-shaped chain roller with high-speed bearing capacity, which comprises a roller body, an anti-friction component is arranged on the outer wall of the roller body, the anti-friction component comprises a wear-resistant steel sleeve, the wear-resistant steel sleeve is arranged on the outer wall of the roller body, and the wear-resistant steel sleeve is arranged on the outer wall of the roller body. An inner connecting ring is fixedly connected to the outer wall of the roller body, a rotating sleeve is arranged on the outer wall of the roller body, an outer connecting ring is fixedly connected to the outer wall of the rotating sleeve, a plurality of balls are arranged between the outer connecting ring and the inner connecting ring, and oil absorption cotton is arranged between the rotating sleeve and the roller body. During operation, the rotating sleeve outside the roller body and the inner and outer connecting rings form a rolling structure through the balls, the oil absorption cotton continuously releases oil to reduce friction, the wear-resistant steel sleeve is used for protection, and the oil injection port guarantees lubrication, so that the purposes of improving the transmission efficiency, prolonging the service life and reducing the maintenance cost are achieved, and the stable operation of the roller under high-speed bearing is guaranteed.

The present application relates to the technical field of sludge dewatering, and discloses a water supply and drainage sludge dewatering machine, which comprises a filter press frame, two mounting frames are fixedly installed on the filter press frame, a plurality of mounting holes in linear array distribution are formed in the mounting frames, rotating rods are rotatably installed in the mounting holes, mud blocks matched with upper filter belts are fixedly installed at the bottom of the rotating rods, gears are fixedly installed at the top of the rotating rods, racks meshed with the gears are slidably installed on the mounting frames, cams are rotatably installed at the two ends of one mounting frame, and a pre-pressing assembly is arranged on the filter press frame; the mud blocks are driven to overturn during use, the periodic rotation of sludge separation positions is realized, the areas of the filter belts subjected to pressure are uniformly distributed, the accelerated wear caused by local continuous high load is avoided, the overall service life of the filter belts is prolonged, the switching action of the mud blocks is synchronized with the movement of the filter belts, and the continuous and stable operation of the equipment is ensured.

The present invention provides an adjuvant composition for herbicides comprising: a) from 15.0% to 32.0% by weight of at least one first surfactant selected from betaine compounds, sulfobetaine compounds and mixtures thereof, b) at least one second surfactant selected from: b)(i) alkoxylated alkyl ether phosphate surfactants, b)(ii) glycoside surfactants, provided that the content of glycoside surfactant (if any) in the adjuvant composition is at most 6.0% by weight, and b)(iii) combinations thereof, c) optionally, at least one liquid medium, with respect to the total weight of the adjuvant composition.

The invention discloses a regulation and control method for improving wet desulphurization efficiency and stability. The regulation and control method comprises the steps of slurry supplementing amount regulation, oxidation air amount regulation and the like. By means of the mode, the regulation and control method for improving the wet desulphurization efficiency and stability can accurately control the current slurry supplementing flow of the desulphurization absorption tower, the slurry supplementing flow is corrected according to the pH value of slurry in the absorption tower, the response time is short, the regulation precision is high, automatic closed-loop control over the slurry supplementing flow of a desulphurization system is achieved, and the method is suitable for popularization and application. According to the invention, excessive slurry supplement during the high-load period of the unit can be avoided, energy consumption increase caused by simultaneous operation of a plurality of slurry circulating pumps can be avoided, meanwhile, the slurry quality can be ensured, the desulfurization efficiency is greatly improved, the working intensity of operators is effectively relieved, and the unit can operate safely, stably and economically for a long period.