744results about How to "Shorten speed" patented technology

The invention discloses a compressor performance testing device capable of rapidly stabilizing working conditions, and relates to the technical field of compressor performance testing. The system comprises a test device and a test system in communication control connection with the test device, and the test device comprises an oil separation assembly and a refrigerant assembly; the oil separation assembly comprises an oil component, the oil component is connected with an oil flow meter and a gas path total flow meter through a tee joint, and the other end of the oil flow meter is connected with an oil cooler in series through an oil path pipeline. Through the arrangement of the refrigerant assembly, when a high-temperature and high-pressure gaseous refrigerant is discharged from the outlet of the tested compressor, one part of the high-temperature and high-pressure refrigerant is directly poured into the mixing box through the tee joint, and the other part of the high-temperature and high-pressure refrigerant is condensed by the condenser to become a liquid low-temperature and high-pressure refrigerant to enter the mixing box; the liquid refrigerant and the gas refrigerant are mixed, and the mixing proportion can be adjusted through the two adjusting valves respectively, so that the requirements of test working conditions are met.

The invention discloses a water-retaining controlled-release fertilizer and a preparation method thereof, and relates to the technical field of controlled-release fertilizers. According to the invention, the attapulgite is modified by a phosphoric acid solution, so that the surface of the attapulgite has acidic groups, and the groups can be adsorbed with positive ions in the fertilizer, so that nutrients are adsorbed and fixed on the surface of the attapulgite, and the speed of releasing the fertilizer nutrients into a soil solution is delayed; meanwhile, the modified attapulgite and some nutritional ingredients in the fertilizer can form indissolvable compounds, so that the nutrients are slowly released along with gradual dissolution of the compounds, and the fertilizer efficiency of the fertilizer is prolonged; when the modified attapulgite encounters water, the entering speed of water can be effectively slowed down, dissolution of nutrients in fertilizer particles is controlled, and then the slow and controlled release effect is achieved; and the modified attapulgite can regulate the pH value of the soil, so that the soil environment is more suitable for plant growth and slow release of fertilizer nutrients.

The invention relates to the technical field of ozone monitoring, in particular to an atmospheric ozone monitoring system and method. Comprising a monitoring box and a box door hinged to the monitoring box, a monitoring box is arranged in the monitoring box, the side wall of the monitoring box is communicated with an exhaust pipe, an ozone sensor is embedded in the top wall of the interior of the monitoring box, and during dynamic monitoring, an airflow conveying mechanism for conveying air into the monitoring box is arranged outside the monitoring box; air is discharged from the exhaust pipe through the ozone sensor. The device not only can carry out dynamic monitoring, but also can carry out static monitoring, the monitoring comprehensiveness is improved, when air in the air bag is released, the partition plate is burst open through airflow, the exhaust pipe, the air conveying box and the air bag are communicated, negative pressure is formed in the exhaust pipe, air in the monitoring box is sucked, and the monitoring accuracy is improved. And residual air in the air delivery pipe enters the monitoring box and is pumped away, so that the influence of the residual air in the air delivery pipe on static monitoring is reduced, and the monitoring accuracy is improved.

The invention discloses a wall scraping type film evaporator, which relates to the technical field of evaporators, and comprises a barrel body, a heating barrel cover arranged on the outer wall of the barrel body, a top cover arranged at the top end of the barrel body and a bottom cover arranged at the bottom end of the barrel body, the liquid distribution disc is arranged in the top cover, is used for detecting the sticky state of the waste liquid according to the weight and is self-adaptively lifted; the first scraping plate and the second scraping plate are arranged on the inner wall of the barrel body and are used for identifying the sticky state of the waste liquid and adaptively switching the two states of efficient scraping wall evaporation and accelerated discharging, and the switching mechanism is used for controlling the switching of the first scraping plate and the second scraping plate according to the lifting of the liquid distribution disc. Lifting is carried out through the weight borne by the upper surface of the liquid distribution disc, the switching mechanism controls the first scraping plate and the second scraping plate to be switched for use, and therefore the first scraping plate or the second scraping plate is switched for film scraping evaporation in a self-adaptive mode according to the content of sticky matter in waste liquid, and the film scraping effect of the waste liquid and the discharging efficiency of the sticky matter are improved.

The invention provides a confluence area vehicle control method and system in a man-machine mixed driving environment. The method comprises the following steps: collecting traffic data of a main road and an acceleration ramp of a highway confluence area in real time; taking a position at a certain distance from the convergence point at the upstream of the main road in the convergence area as a first control point, and taking a position at a certain distance from the convergence point at the upstream of the acceleration ramp as a second control point; the type combinations of two vehicles passing through the first control point of the main road of the confluence area are judged, and the optimal speed from the second control point of the acceleration ramp to the confluence point is calculated according to the different type combinations; selecting an optimal driving lane for the vehicle according to the traffic data of each lane of the main road; the driving conditions of the HV, the CAV and the CAV fleet are analyzed according to the traffic data collected in real time, the vehicle speeds of the CAV and the CAV fleet are controlled and adjusted, the optimal driving speed of the HV is prompted, and it is ensured that all vehicles can safely and rapidly pass through the confluence area.

The present invention discloses a double-annular strong magnetic array nonlinear dynamic vibration absorber and design method for suspension vibration reduction, which belongs to the field of structural vibration control. The installation position and quantity are designed according to the vibration reduction requirements, and one is usually installed at the midpoint of the suspension. The vibration absorber comprises inner and outer magnetic ring arrays, counterweights, universal wheels and a base. It feeds back the control force in the opposite direction of the suspension vibration during movement, so that the suspension vibration energy is transferred to the vibration absorber and then less returned to the suspension, and the energy is dissipated through friction between the universal wheel and the base, the installation of air dampers and other measures. It introduces nonlinear stiffness, so that the optimal parameter domain range is expanded from the line domain to the surface domain, and thus has the outstanding advantages of easy parameter tuning and high vibration reduction robustness, and is easy to install, durable, and requires no or less maintenance. It is applicable to single, double and four-cable suspensions, and is expected to achieve the goal of good vibration reduction effect throughout the life cycle of the suspension, which has positive significance for ensuring driving and bridge safety and extending the service life of the suspension.

The invention provides a stratosphere aircraft cross-day and cross-night task trajectory planning method and system in a dynamic wind field environment. The method comprises the steps that a task target and task constraints are acquired; acquiring external wind field information; constructing a motion model and a cost function of the stratosphere aircraft in the dynamic wind field; and outputting the lowest feasibility requirement of the cross-day and cross-night task under the dynamic wind field condition and the optimal trajectory when the task is completed by using a level set method in combination with particle swarm optimization. The method has the advantages that a combination framework of the level set algorithm and the particle swarm algorithm is innovatively provided, the problem that the level set algorithm has strong dependence on initial conditions is solved, meanwhile, the search space dimension is reduced, and the probability that the algorithm falls into a local optimal solution is reduced; by flexibly designing a fitness function, conditions such as speed constraint, energy consumption constraint and task feasibility of a stratosphere aircraft cross-day and cross-night arrival or residence task can be comprehensively considered, and the globality and constraint compatibility of trajectory optimization are realized.

The invention relates to the technical field of unmanned aerial vehicle dispatching, in particular to a disaster area emergency unmanned aerial vehicle networking method based on reinforcement learning, which comprises the following steps: taking an unmanned aerial vehicle as an intelligent agent, and taking horizontal and vertical coordinates, speed, direction, residual energy consumption and user throughput of the unmanned aerial vehicle as an observation space of the unmanned aerial vehicle; taking the speed scheduling scheme and the bandwidth allocation scheme of the unmanned aerial vehicle as an action space of the unmanned aerial vehicle; introducing a graph attention mechanism to aggregate observation features of adjacent unmanned aerial vehicles; based on the aggregated observation features, bandwidth allocation actions and corresponding rewards of the unmanned aerial vehicle under each speed scheduling are obtained; and introducing a Jain's fair index to measure the fairness of the service quality of the unmanned aerial vehicle in the region, and optimizing the speed scheduling and bandwidth allocation of the unmanned aerial vehicle. Under the condition of limited resources, the communication bandwidth is reasonably allocated, and the service coverage rate of the affected user is maximized.

The invention provides an endoscopic positive negative pressure suction rotary-cut biopsy needle and a biopsy system.The biopsy needle comprises a far-end pipeline part and a near-end handheld part, the near-end handheld part comprises a near-end shell and a rotary-cut knife tube transmission assembly, and the near end of a rotary-cut knife tube is installed in the near-end shell through the rotary-cut knife tube transmission assembly; a negative pressure interface is formed in the near-end wall of the near-end shell; the rotary cutter tube transmission assembly comprises a circumferential rotation transmission mechanism and an axial movement transmission mechanism, the circumferential rotation transmission mechanism comprises a mandrel assembly and a rotating shaft sleeve which are located in the near-end shell, the rotary cutter tube is fixedly sleeved with the mandrel assembly, and the mandrel assembly is sleeved with the rotating shaft sleeve; the rotating shaft sleeve and the rotary cutter pipe are in dynamic sealing through a first dynamic sealing piece; the near end of the rotating shaft sleeve is fixedly and hermetically communicated with a rotating pipe; the rotating pipe is also hermetically communicated with the negative pressure interface through a second dynamic sealing piece; the rotating shaft sleeve is driven to rotate, so that the rotating shaft sleeve drives the mandrel assembly to rotate, and then the rotary cutter pipe is driven to rotate.

The invention discloses a warm-keeping fabric containing hollow polyester fibers as well as a preparation method and application thereof, and relates to the field of fabrics. When the thermal fabric containing the hollow polyester fibers is prepared, hollow mesoporous nano cerium oxide is selectively protected by molten paraffin and then reacts with chloromethyl trimethoxy silane and isocyanuric acid in sequence, paraffin is dissolved by chloroform, and then N-(3-trimethoxysilylpropyl) pyrrole is grafted to obtain modified hollow mesoporous nano cerium oxide; reacting terephthalic acid, a multifunctional monomer and ethylene glycol to obtain modified polyester particles; the preparation method comprises the following steps: granulating modified polyester, uniformly mixing modified hollow mesoporous nano cerium oxide and polyethylene glycol 10000, performing melt spinning, treating with a pyrrole solution, twisting, spinning and weaving, and treating with a sodium hypochlorite mixed solution to obtain the thermal fabric containing the hollow polyester fibers. The warm-keeping fabric containing the hollow polyester fibers prepared by the invention has excellent warm-keeping, antibacterial, anti-aging, flame-retardant, antistatic and mechanical properties.

The invention discloses a multi-degree-of-freedom control method and system for a ground rail robot, a product and a medium, and relates to the field of control or adjustment systems. The method comprises the steps that characteristic quantities in carried object task data are extracted, and weight parameters, material parameters and position parameters of carried objects are obtained; matching track operation data of the ground track in a preset track database according to the weight parameters, the material parameters and the position parameters, extracting a target point in a track path of the ground track, calculating carrying path data of the robot on the ground track based on carrying parameters of the target point, and sending the carrying path data to the robot, and after the robot executes the carrying path data, real-time stress parameters and real-time position parameters of the robot are measured at the pickup point, the transition point and the placement point, the real-time stress parameters and the real-time position parameters are input into a preset evaluation model, track correction parameters and position correction parameters are obtained, and a correction instruction is sent to the ground track robot. By implementing the method, the carrying precision of the ground rail robot can be improved.

The invention provides a self-adaptive variable-frequency speed regulation control method for a belt conveyor, which comprises the following steps: acquiring current material loading capacity data through a weight sensor, comparing the current material loading capacity data with a preset standard loading capacity to obtain a deviation value of the loading capacity, and controlling the feeding speed of a feeding device according to the deviation value. The loading capacity of the conveyor is maintained within a reasonable range by adjusting the loading speed of the materials; the speed sensor is adopted to obtain current belt speed data, the current belt speed data is compared with a preset standard speed to obtain a speed deviation value, the output frequency of the frequency converter is controlled according to the size and positive and negative of the deviation value, and the belt speed is maintained within a reasonable range by adjusting the rotating speed of the motor. The control strategy can be automatically optimized according to different working conditions, belt tension and speed fluctuation are effectively reduced, stable operation of the conveyor in a complex and changeable environment is ensured, and conveying efficiency and safety are improved.

The invention discloses a virtual impedance adjustment-based current-limiting control method and system for a network construction converter, and the method comprises the steps: determining a fault transient virtual resistance according to the voltage difference between the terminal voltage of a virtual synchronous machine and the voltage of a grid-connected point in a fault transient state when the system breaks down; in a fault steady state, determining a fault steady state virtual resistance and a fault steady state virtual inductance according to a voltage difference between a terminal voltage of the virtual synchronous machine and a grid-connected point voltage and a current over-limit threshold value of the networking converter; the large value of the fault transient virtual resistance and the fault steady-state virtual resistance is used as the fault virtual resistance, and the fault steady-state virtual inductance is used as the fault virtual inductance; and determining a fault potential difference by using the line current, the fault virtual resistance and the fault virtual inductance, and obtaining a fault current instruction value through a voltage control outer ring according to the difference values of the voltage instruction, the output voltage of the network construction converter and the fault potential difference. The current does not exceed the limit in the fault steady state, and the current impact caused by the superposition of the non-periodic component current and the periodic component current does not exceed the limit in the fault transient state.

The invention relates to the technical field of alloy processing, in particular to a long-service-life elastic titanium-copper alloy for a VCM elastic piece and a preparation method thereof.The preparation method comprises the following steps that firstly, raw materials including 55%-65% of titanium, 30%-25% of copper, 10%-8% of aluminum, 3%-1% of zinc and 2%-1% of magnesium are weighed according to the mass percent; 2, the raw materials are put into a vacuum furnace to be melted, and a liquid melt is obtained; thirdly, the melt is poured into a casting mold for casting, and a blank is obtained; according to the method, the change of the state of the blank can be responded in real time by calculating the influence of the rolling times and the thickness change of the blank on the rolling control parameters, so that the rolling process can be flexibly adjusted according to the actual situation, the adaptability during machining is improved, and the rolling speed is improved when the rolling times are gradually reduced along with the reduction of the rolling times of the blank. The rolling temperature, ratio, speed and pressure are reduced, excessive deformation and damage of blanks can be effectively prevented, and the quality of final products, namely the elastic life of the alloy, is improved.

The invention relates to the technical field of guard plate welding, and discloses a corrugated guard plate welding tool for an industrial guardrail, the corrugated guard plate welding tool comprises a bottom plate, a first corrugated plate and a second corrugated plate, the upper end of the bottom plate is movably connected with a first supporting plate, one side of the first supporting plate is fixedly connected with a second supporting plate, and the upper end of the second supporting plate is fixedly connected with a third corrugated baffle; the first corrugated plate is movably connected between the third corrugated baffle and the first supporting plate, a fixing assembly is arranged at the upper end of the second supporting plate, a welding mechanism is arranged on one side of the fixing assembly, two sets of symmetrical fixing plates are fixedly connected to the upper end of the bottom plate, and a pushing mechanism is jointly arranged between the two sets of fixing plates. The corrugated plate welding device has the advantages that the movable rod can drive the welding gun to cater to fluctuation of corrugated plates to conduct precise welding, the corrugated plates are adaptively fixed according to different lengths of the corrugated plates, meanwhile, the position of the welding gun can be adjusted, and the welding effect and quality are effectively improved.

The invention relates to the technical field of laser welding, in particular to a positioning tool for laser welding, which comprises a platform, a motor is mounted on the outer wall of one side of the platform, one end of an output shaft of the motor is connected with a two-way screw through a coupler, and the outer walls of the two sides of the two-way screw are connected with a sliding frame through threads. A first sliding groove is formed in the outer wall of one side of the sliding frame, a clamping frame is slidably connected to the inner wall of the first sliding groove, a second sliding groove is formed in the outer wall of one side of the top of the clamping frame, a locking frame is slidably connected to the inner wall of the second sliding groove, and locking plates are fixedly connected to the outer walls of the two sides of the bottom end of the locking frame. The clamping plate pushes the bottom plate, the limiting plate rotates to be horizontal to limit the top of a workpiece under the linkage effect, and after the limiting plate rotates, the locking structure automatically slides downwards to be inserted into the corresponding position of the clamping structure for locking under the gravity effect, so that the clamping and positioning effect is improved, the machining error is reduced, and the repeated positioning precision is improved; and the positioning efficiency of the laser welding positioning tool is improved.

The invention relates to the technical field of wire harness winding, and particularly discloses a wire harness winding mechanism which comprises a clamping conveying mechanism and a discharging mechanism which are distributed on the left side and the right side of the winding mechanism. The clamping and conveying mechanism comprises a mounting cylinder and a clamping and conveying part, the clamping and conveying part comprises two chain / belt transmission structures and multiple clamping parts, the two chain / belt transmission structures are mounted in the mounting cylinder and are symmetrically distributed about the central axis, and each group of clamping parts comprises two clamping parts which are symmetrically distributed on the two chain / belt transmission structures about the central axis; the chain / belt transmission structure has a reciprocating motion direction extending along the central axis; the discharging mechanism comprises a supporting cylinder installed on the installation base and two clamping rollers installed in the supporting cylinder, the extending direction of the two clamping rollers is perpendicular to the central axis, and the two clamping rollers are symmetrically distributed on the two sides of the central axis in the radial direction. According to the wire harness winding mechanism, the cable can be prevented from being separated from the original radial arrangement position.

The utility model relates to the technical field of food processing, and discloses a convenient straight noodle anti-adhesion device, which comprises a first gas ejector pipe, a second gas ejector pipe, a plurality of first gas ejector holes, a plurality of second gas ejector holes and a plurality of second gas ejector holes, the first air spraying holes are used for blowing away the straight face strips falling from the front portion forwards, blowing away the straight face strips falling from the rear portion backwards and drying the cutting faces of the straight face strips. And the second air injection pipe is installed at the lower end of the middle guide plate and arranged behind the bent position of the straight face strip falling to the forming mesh belt, a plurality of second air injection holes inclining forwards are formed in the second air injection pipe, and the second air injection holes are used for blowing away the falling straight face strip forwards so as to slow down the speed of the straight face strip falling to the forming mesh belt. Therefore, the adhesion problem of the straight noodles is effectively avoided, and the adhesion rate of the noodles is remarkably reduced.

The invention discloses a polymer melt extrusion device with an intelligent temperature control function, and relates to the technical field of chemical fiber production equipment.The polymer melt extrusion device comprises a mounting frame, an extrusion unit, a detection unit, a spinning unit and an air belt.The mounting frame is used for mounting and fixing the extrusion unit, the extrusion unit is used for melting materials, the detection unit is used for removing melt bubbles, and the spinning unit is used for spinning the melt. The spinning unit is used for spinning and post-heating of the melt, the air bellow is used for cooling and forming of spinning, and when materials are metered through the extrusion unit and melted into the melt, bubbles in the melt are detected and removed through the detection unit, so that the overall uniformity of the melt is improved, and the spinning quality is prevented from being influenced; the spinning unit is used for conducting secondary heating after the melt is subjected to spinning forming, internal stress in fibers is eliminated, the influence on the spinning quality is avoided, and finally cooling forming is conducted through an air bellow.

The invention discloses two-way positioning automatic boring equipment, relates to the field of boring equipment, and solves the problem that the two ends of a workpiece are difficult to synchronously perform automatic positioning boring operation when the existing boring equipment is used, the two-way positioning automatic boring equipment comprises a machine body, a driving mechanism, a boring mechanism, an adjusting mechanism and two groups of cutter bars, the boring mechanism comprises a sliding seat, a mounting frame and a mounting block, and the adjusting mechanism comprises a first threaded rod. According to the two-way positioning automatic boring equipment, a workpiece is conveniently driven by the driving mechanism to rotate for boring operation, and the sliding seat is linked to slide in the guide frame in a reciprocating manner when the driving mechanism runs, so that the cutter bars on the two sides synchronously perform boring operation; the maximum displacement of the mounting block is preset through the adjusting mechanism, then when the sliding base slides in a reciprocating mode every time, the first threaded rod is linked to rotate by a set angle till the mounting block reaches the preset position, and the purpose of automatic positioning and reaming is achieved.

The utility model discloses a material receiving device with a centered belt, which belongs to the technical field of ferrous metallurgy and comprises a material receiving hopper positioned right above a material receiving belt, the upper end of the material receiving hopper is provided with a material inlet, and the lower end of the material receiving hopper is provided with a material outlet; the material receiving hopper is characterized in that an inner cavity channel of the material receiving hopper is of a rectangular structure; a plurality of buffer plates are arranged in an inner cavity of the receiving hopper; the included angle between the buffer plate and the horizontal plane is not equal to 0 degree and 90 degrees; the buffer plates comprise a plurality of left wall buffer plates arranged on the left side wall of the inner cavity at different heights and a plurality of right wall buffer plates arranged on the right side wall of the inner cavity at different heights; the receiving hopper with the buffer plate is arranged, and the problems that in the prior art, when large-particle materials fall, impact on the receiving hopper is large, abrasion is prone to occurring, and noise is generated are solved; materials directly impact a material receiving belt, so that deviation and other potential safety hazards are caused; and the receiving hopper lacks the capability of intercepting large materials, so that the belt may be scratched, and the maintenance cost is increased.

The invention discloses an electromagnetic repulsion switch with three opening modes. The electromagnetic repulsion switch comprises an arc extinguish chamber shell, a static contact, a moving contact, a corrugated pipe, a transmission rod, an electromagnetic repulsion mechanism, a bistable spring retainer and a hydraulic buffer. Wherein the electromagnetic repulsion mechanism is composed of an opening coil, a moving coil, a closing coil and discharging circuits thereof, the discharging circuit of each group of coils comprises a discharging capacitor, a thyristor and a fly-wheel diode, the upper end and the lower end of the discharging circuit are respectively connected with leads on the outer side and the inner side of each coil, and the discharging circuits are mutually independent. According to the electromagnetic repulsion switch provided by the invention, the corresponding thyristors can be controlled to switch different opening modes according to working conditions, so that the stress and charging and discharging requirements of the electromagnetic repulsion switch under a constant-speed opening working condition are reduced, and meanwhile, a single-capacitor constant-speed driving mode and a double-capacitor rapid driving mode can be used as a backup scheme or a rapid reclosing scheme; and the reliability and the mechanical life of the electromagnetic repulsion switch are obviously improved, so that the application range of the electromagnetic repulsion switch is wider.

The invention provides a video data processing method and device and a video data processing system. The method comprises the following steps: acquiring video data of a coal mine; performing block processing on the video data to obtain a plurality of video blocks; compressing all the video blocks to obtain a plurality of compressed video blocks; combining all the compressed video blocks to obtain compressed video data; and sending the compressed video data to the target terminal. According to the scheme, the problem of low transmission efficiency of coal mine monitoring video data in the prior art is solved.

The invention discloses a noise optimization control system for an actuating mechanism of a sanitation vehicle, and belongs to the technical field of gas circuit control. The system comprises a hydraulic control loop, a pneumatic control loop and a controller. The hydraulic loop comprises an oil pump, an oil tank, a main reversing valve and an action oil cylinder; working ports A and B of the main reversing valve are respectively communicated with a rodless cavity and a rod cavity of the action oil cylinder; the pneumatic loop comprises an air source, a first reversing valve, a second reversing valve, a reversing air cylinder and a buffering assembly. The air source is communicated with a rodless cavity and a rod cavity of the reversing air cylinder through a first air path and a second air path respectively, a first reversing valve and a second reversing valve are arranged on the two air paths respectively, and the control ends of the two valves are both electrically connected with the controller. The extension and retraction actions of the reversing cylinder control the main reversing valve to switch working ports; in order to slow down the speed that the reversing cylinder pushes a valve rod in the main reversing valve to switch working ports, a first buffering assembly is further arranged on the reversing oil cylinder. According to the invention, the corresponding buffer assembly is additionally arranged, so that the noise optimization control of the actuating mechanism of the sanitation vehicle is realized.

The invention relates to the technical field of flue gas treatment, in particular to an anti-blocking spraying device for SNCR (selective non-catalytic reduction) denitration treatment of waste incineration flue gas, which comprises an incinerator, a smoke exhaust channel is arranged at the upper end of the incinerator, a flow dividing assembly is arranged in the smoke exhaust channel, the flow dividing assembly comprises a spraying mechanism and a rotational flow mechanism, and the spraying mechanism comprises a flow dividing block, a flow dividing hole and a spray head. The flow dividing block is installed in the smoke discharging channel, the multiple flow dividing holes are formed in the upper end of the flow dividing block, the pair of rotating frames are installed in the flow dividing holes, the spraying pipe is rotationally connected into the rotating frames, and the multiple spraying heads are all installed on the spraying pipe; the cyclone mechanism comprises flow guide discs and cyclone blades, the flow guide discs are all installed on the circumferential face of the spraying pipe, and the cyclone blades are installed at the lower ends of the flow guide discs. Flue gas is divided, the size of each flue gas is reduced, after the flue gas passes through a water curtain formed by three layers of reaction liquid, the flue gas can make full contact with the reaction liquid, and therefore the reaction liquid can be fully separated, and the reaction effect is improved. The denitration effect on the flue gas is improved.

The invention discloses polycarboxylic acid water reducing agent powder production equipment, and relates to the technical field of polycarboxylic acid water reducing agent equipment, the polycarboxylic acid water reducing agent powder production equipment comprises a reaction kettle, a water inlet pipe is arranged at the top of the reaction kettle, a feeding pipe is arranged at the top of the reaction kettle, a control valve is arranged at the bottom of the reaction kettle, and a sliding groove is formed in the inner wall of the reaction kettle; the device further comprises a stirring mechanism; wherein the stirring mechanism comprises a servo motor, a rotating rod, a connecting rod, stirring fan blades, a carrying plate, a sliding plate, a first spring, a cylindrical rod, a round block, an abutting plate and a supporting plate, the servo motor fixedly penetrates through the top of the reaction kettle, the rotating rod is fixedly installed at the output end of the servo motor, the position is automatically adjusted through the cylindrical rod when the cylindrical rod encounters cakes, and the cylindrical rod is fixed to the top of the reaction kettle; and then stable pressure is applied to press and disperse the cakes, so that the uniformity of the reaction process is favorably improved.

The utility model discloses a protection plate for logistics conveying equipment, and relates to the technical field of logistics. The conveying device comprises a conveying belt, first supporting mechanisms are fixedly connected to the two sides of the top of the conveying belt, each first supporting mechanism comprises a spring sleeve rod, a sliding frame is slidably connected to one end of each spring sleeve rod, a mounting plate is fixedly connected to one side of each sliding frame, and a damping mechanism is arranged at the bottom of each mounting plate. The damping mechanism comprises a ball groove, a rolling ball is arranged in the ball groove, and a friction plate is arranged between the rolling ball and the ball groove. The position of the damping mechanism can be adaptively adjusted when materials collide with the protection plate, and the damping mechanism effectively buffers and absorbs impact force generated in the material transportation process through interaction of a ball groove, a rolling ball and a friction plate in the damping mechanism.

The invention discloses a road intelligent traffic multifunctional monitoring optimization system and method, and the system comprises a controller, a deceleration strip, and a traffic light assembly. The controller comprises an embedded single-chip microcomputer, a traffic flow detection module, a short-time traffic flow prediction module, a traffic state analysis module and a real-time traffic flow control adjustment module. The road intelligent traffic multifunctional monitoring optimization system not only has the capability of detecting and predicting the traffic flow in real time, but also has the function of monitoring the road traffic operation condition to give an alarm, and improves the travel experience of urban residents through intelligent regulation and control of the traffic flow. The technical problem that unnecessary waiting time or traffic jam occurs under some conditions due to the fact that traffic conditions cannot be intelligently regulated and controlled by an existing road intelligent traffic multifunctional monitoring optimization system and method, and traffic light time circulates in a fixed time interval is effectively solved.

The utility model discloses a speed difference type falling protector for electric power construction, which belongs to the technical field of electric power construction, and is characterized by comprising a device body, a pulling block is bolted at the top of the device body, a pulling assembly is arranged at the top of the pulling block, a protection assembly is arranged at the top of the pulling block, and the protection assembly is arranged at the top of the pulling block. A steel wire rope is arranged on the inner wall of the device body, an auxiliary limiting assembly is arranged at the bottom of the device body, a buffering assembly is arranged at the bottom of the device body, a limiting plate is arranged at the bottom of the device body, and a speed detection mechanism is bolted to the right side of the limiting plate. The speed difference type falling protector solves the problems that most of existing speed difference type falling protectors are not provided with auxiliary limiting braking work, when a worker falls during operation, a steel wire rope can be pulled to rapidly fall, large force can be generated during emergency braking of the speed difference type falling protector, the situation that a brake wheel is prone to being damaged is caused, and the use effect is affected.

The invention relates to the field of cutting control of ball mill lining plate processing, in particular to a cutting control system for ball mill lining plate processing, which comprises a user authentication module, a data input module, a data acquisition module, a central analysis module, a cutting compensation module, an early warning processing module and a remote control module, the user authentication module starts the machining and cutting equipment according to the biological information of each worker, the data input module is used for inputting the size and thickness parameter information of the ball mill lining plate, and the central analysis module analyzes the parameter information according to the received parameter information transmitted by the data acquisition module and sends the analyzed parameter information to the processing and cutting equipment. And the early warning processing module receives the high-temperature signal and obtains the position of a nearby maintainer to process the machining and cutting equipment. The production efficiency of the lining plate of the ball mill is improved, and the production period is shortened.