34results about How to "Reduce job safety risks" patented technology

The invention relates to a heading machine load self-adaptive control method and system, and the method comprises the steps: a data analysis module is disposed on a heading machine equipment layer, collects the heading data of the heading machine equipment layer in real time, and calculates a load coefficient for self-adaptive adjustment; and the control module is connected with the data analysis module and the heading machine equipment layer, and analyzes the accessed load coefficient into a control signal for adjusting rotation and lifting of a cutting arm in the heading machine equipment layer. The method comprises the following steps: determining a motion trail model of a cutting operation surface of a heading machine equipment layer by acquiring perception data of a manual cutting section, determining a load coefficient generated by the motion trail model according to the state change of the cutting operation surface in the cutting process, and adjusting rotation and lifting of a cutting arm in the heading machine equipment layer based on the load coefficient. The self-adaptive control of the equipment layer of the heading machine is realized, the accuracy and the stability of on-line identification of the heading working face are greatly improved, the equipment failure rate and the safety risk of operation are reduced to the greatest extent, and the method has wide applicability.

The invention relates to a measuring tool for multi-dimensional measurement of a large boiler steam soot blower combination, and belongs to the technical field of thermal power plant maintenance, the measuring tool comprises a ruler plate, the ruler plate is provided with length scale marks along the length direction, the end part of the ruler plate is hinged with a hinged plate, the free end of the hinged plate is integrally and fixedly connected with an arc-shaped plate, and the arc-shaped plate is fixedly connected with the ruler plate. Angle scale marks are arranged on the arc-shaped plate in the length direction, and when one side of the hinged plate is flush with the side face of the ruler plate, the zero scale line of the arc-shaped plate is just flush with the side face of the ruler plate. The operation is simple, the working efficiency can be effectively improved, and the operation safety risk is reduced.

The invention relates to the field of garbage bin drainage, and provides garbage bin drainage grilles and application, the garbage bin drainage grilles comprise a screen, connecting bamboo blocks, bamboo strips, first grilles, second grilles and third grilles, multiple groups of grilles are installed at the front end of the screen, four rows of grilles are laid on the first layer, three rows of grilles are laid on the second layer, and two rows of grilles are laid on the third layer; in the laying process, flatness needs to be kept, joints on the same layer need to be staggered, joints on different layers need to be pressed, splicing and building are tight, the water level in the garbage bin is effectively reduced, the heat value of garbage entering a furnace is increased, the garbage water content is reduced, and after normal dumping work of leachate in the garbage bin is stable, full-time maintainers can be effectively prevented from entering a leachate gallery to conduct water grate cleaning work; high-frequency limited space operation is fundamentally eradicated, and the operation safety risk is greatly reduced.

The application provides a use method of a photovoltaic flexible support wind-resistant cable passing rod, and belongs to the technical field of photovoltaic supports. The photovoltaic flexible support wind-resistant cable passing rod comprises the following steps: S10: the wind-resistant cable is laid and tensioned through the passing rod at the lower part of a stabilizing cable and the upper part of a bearing cable, so that the bearing cable enters the cable passing channel from the side end opening of the passing rod; S20: the rack push-pull rod is pushed up, the two side gears are driven to rotate, the two side tooth rings are simultaneously driven to rotate to the closed state with the notch facing inward, and the bearing cable is passed along the cable passing channel; S30: the rack push-pull rod is pulled down, the two side gears are driven to rotate, the two side tooth rings are driven to rotate to the open state with the notch facing outward, and the bearing cable is released; the passing rod comprises a passing rod base, a linkage component and a line body; the cable passing channel is formed between the passing rod base and the line body; and the application can solve the problems of traditional thread winding and cable passing, such as time-consuming and labor-intensive, and low installation and construction efficiency.

The invention relates to the technical field of cooling tower filler replacement, and provides a cooling tower filler replacement device and method, the cooling tower filler replacement device comprises a cooling tower, a time-saving and labor-saving method is used in the cooling tower filler replacement construction process, the labor intensity of on-site constructors is greatly reduced through the method, the construction progress is accelerated, and the construction efficiency is improved. The operation safety risk in the construction process is reduced to a certain degree, meanwhile, the situation that manual damage possibly occurs in the manual carrying process of the filler is avoided, a pushing structure is installed in the cooling tower, and when the feeding box is driven by a winch to slowly ascend to the feeding position, the pushing structure can push the filler to the feeding position. The infrared detector can detect the position of the feeding box and transmit a signal to the electric push rod, at the moment, the electric push rod is started and extends forwards, then the feeding box is pushed to the packing layer, feeding is completed, and the feeding device is convenient and practical.

The utility model discloses an alloy hoisting barrel, which relates to the technical field of metal smelting, and comprises a bottomless barrel body, mounting tables are symmetrically mounted on one side of the barrel body, the two mounting tables are respectively and rotatably connected to two sides of a connecting rod, a movable bottom cover is mounted on the connecting rod, and supporting tables are symmetrically mounted on one side, far away from the mounting tables, of the movable bottom cover. A hook rod is installed between the supporting tables, connecting tables are symmetrically installed on the side wall, away from the installation table, of the can body, the two connecting tables are rotationally connected to the two sides of the supporting rod respectively, hook locks are installed at the two ends of the supporting rod, and cross rods parallel to the supporting rod are installed on the inner walls of the corresponding sides of the two hook locks. The hook rod of the movable bottom cover is hooked through the hook lock, the movable bottom cover seals the barrel bottom, after alloy is contained, the alloy barrel tool is hoisted to the position about 30 cm above a furnace opening of an intermediate frequency furnace, after the alloy barrel tool is aligned to the furnace opening, an operator does not need to open the movable bottom cover through a long hook, the alloy falls into the furnace, the safety distance between the operator and the furnace opening is increased, and the working efficiency is improved. And the operation safety is improved.

The utility model discloses an elasticizer hot box cleaner which comprises a cleaner body and a moving rod, the moving rod is installed on the cleaner body in a penetrating mode and can move linearly in the length direction of the cleaner body, one end of the moving rod is provided with a cleaning mechanism, the cleaning mechanism comprises a brush assembly, and the brush assembly can make contact with the inner wall of a hot box elasticizing channel. In the moving process of the moving rod, the brush assembly can clean the inner wall of the hot box elasticizing channel, the cleaner can be reliably placed at an inlet of the hot box channel, efficient cleaning operation is achieved through the electric brush assembly, wall attaching movement of the brush assembly is achieved through release of the extension rod and the moving rod, and the cleaning efficiency is improved. The full-wall-face cleaning device has the advantages of being high in cleaning efficiency, good in cleaning quality and easy to operate.

The application discloses a kind of intelligent special operation site management and control systems for regulatory authorities, belong to special operation control field, solve how to assist safety regulatory authorities to understand the details of special operation in jurisdiction by information means, and accurately control the problem of special operation site;Information acquisition and judgment module collects and judges the three types of special operation information of enterprise;Verification pending task generation module obtains three types / no three types of special operation verification pending task;Verification editing module formulates on-site control measures and enterprise verification method;Verification task feedback module feeds back control measures or verification method;Overdue reminder module reminds overdue for not timely feedback control measures or verification method;Verification result record module records verification result;Control result analysis module generates weekly report content;SMS content configuration module fills corresponding SMS template according to the information obtained;SMS sending module automatically sends SMS to corresponding user terminal.

The invention particularly relates to a hoisting, overturning and dumping device for a resin barrel of a chemical water system. The hoisting, overturning and dumping device comprises a rack, an electric control box, a power box, a hoop, a bevel gear reversing box, a transmission shaft assembly, a worm gear speed reducer and a driving motor, a lifting ring is arranged at the top of the rack for connecting a field crane; a clamp is arranged on the hoop and used for opening or closing the hoop; the power box supplies power to the driving motor; the electric cabinet controls the power box to supply power and the driving motor to rotate; one end of an input shaft of the turbine speed reducer is connected with the driving motor through the transmission shaft assembly; the other end is connected with the bevel gear reversing box through the transmission shaft assembly; and an output shaft of the turbine speed reducer is connected with the hoop. The working efficiency of resin loading of the chemical water system is improved, the labor intensity of personnel for resin loading of the chemical water system is reduced, and the operation safety risk of the personnel for resin loading of the chemical water system is reduced.

The utility model discloses an external opening device for an inflation valve of a shock absorber of an airplane hydraulic system. The external opening device comprises a nut with a deflation groove and a T-shaped bolt. A stepped threaded through hole is formed in the nut along the axis of the nut, the small-diameter section of the stepped threaded through hole is used for being matched with the T-shaped bolt, and the large-diameter section of the stepped threaded through hole is used for being connected with the outer circle of the air inlet end of the damper inflation valve in a matched mode. The end face of the nut is radially provided with a kidney-shaped deflation groove which is communicated with the stepped threaded through hole and is coaxially arranged, and a nitrogen release channel is formed. And an external thread matched with the small-diameter section of the threaded hole of the nut is arranged on the T-shaped bolt rod body. In the opening process, after the end of the T-shaped bolt makes contact with the end face of a sliding valve of the inflation valve, the T-shaped bolt is screwed into 1-1.5 circles of threads, the sliding valve is pushed by the T-shaped bolt to move inwards, a spring in the inflation valve is compressed, an air inlet channel of the inflation valve is opened, nitrogen in the shock absorber is released, and the frosting phenomenon is weakest. According to the device, a nitrogen release route is changed, the operation safety risk of operators is reduced, and the production efficiency is improved.

The invention discloses a feeding device matched with a pipe cutting machine and a control method, the feeding device comprises a plurality of feeding mechanisms, and each feeding mechanism comprises a material frame; the material storage mechanism comprises a material warehouse and a discharging mechanism, and the discharging mechanism can convey pipes to the first discharging table; comprising a material distributing part for driving the pipes to be transferred from the first discharging table to the second discharging table; comprising a material pushing part, the material distributing part drives the pipes to reach a material pushing position, and the material pushing part pushes the pipes, in a stacked state, on the material distributing part back to the material warehouse through telescopic movement; comprising a conveying part; and the conveying part conveys the pipes from the material preparation position to the conveying mechanism, and the conveying mechanism conveys the pipes to a feeding port of the pipe cutting machine. The invention provides a feeding device matched with a pipe cutting machine and a control method, and aims to solve the technical problems that an existing feeding device is large in material distribution difficulty and insufficient in feeding precision, and the machining efficiency is limited due to the fact that the existing feeding device needs to be matched with a high-requirement clamping type pipe cutting machine.

The invention discloses a loop anti-falling safety supporting device in rolling mill overhaul operation, which is arranged below a loop swing table and is positioned on the side part of a trolley. In order to solve the problems that after the loop swing table is lifted, the height difference exists between the loop swing table and the bottom plate, and the falling risk exists, the supporting device is manufactured and installed below the swing table, adjustment is convenient, use is convenient, and safety and reliability are achieved. According to the invention, the maintenance operation safety is improved, the operation safety risk is reduced, and safety accidents are avoided.

The utility model relates to a sludge dewatering cake scattering block automatic cleaning and flushing integrated device, its characterized in that: contain cleaning device body, sliding guide, mud cake desorption water collection system, plate frame machine control cabinet, drain groove, cleaning device body sliding connection is in the sliding guide, sliding guide fixed setting is in the inner wall's upper end of drain groove, plate frame machine control cabinet and cleaning device body electric signal coupling, and be used for the power supply of cleaning device body, the top of cleaning device body and mud cake desorption water collection system intercommunication, mud cake desorption water collection system and plate frame machine side's drain faucet intercommunication, and mud cake desorption water collection system is used for collecting the waste water that drain faucet discharged, the utility model replaces manual cleaning, reduces the operation safety risk, effectively reduces the water consumption, reduces the sludge compression workshop peculiar smell, improves the plant operation environment.

A metal mine stope personnel safety behavior recognition method and system, comprising: acquiring metal mine stope video streams of each camera; inputting the video stream of each camera into a safety behavior recognition model to obtain detection data triples; configuring a preset number of sliding windows for each camera, and caching the monitoring data triples output by the safety behavior recognition model in the sliding windows in timestamp order; judging whether the number of monitoring data triples with "illegal" wearing state data accumulated in the sliding window reaches a preset threshold; if yes, triggering an alarm, and storing the monitoring data triples with "illegal" wearing state data in the sliding window as illegal evidence; the above technical scheme realizes full-automatic detection of wearing compliance of protective equipment of personnel in a metal mine stope, illegal behavior identification and automatic storage of illegal evidence, strengthens safety supervision efficiency of the stope, reduces operation risk, and protects personnel life safety and continuous and stable operation of mine production.

This invention discloses a tracked mobile carrier based on highway guardrails, comprising a carrier body, a walking drive mechanism, and a support and guiding mechanism. The walking drive mechanism includes an outer drive-clamping track assembly and an upper drive-clamping track assembly located on both sides of the corrugated guardrail, forming a bidirectional clamping drive structure. The two tracks are in surface contact with the corresponding surfaces of the corrugated guardrail to provide walking drive force. Both track assemblies are equipped with adaptive adjusting slides with pre-tension springs, enabling adaptive inward and outward floating of the driven wheel assembly to continuously maintain the track's contact with the corrugated guardrail. The support and guiding mechanism includes a top support roller and a lower limiting roller with a buffer spring, achieving vertical load-bearing and lateral limiting and buffering. This invention enables highly stable and reliable all-weather autonomous movement along highway corrugated guardrails, adapting to various complex working conditions of the guardrails and meeting diverse application needs such as highway maintenance and inspection, and traffic control.

The present invention discloses a steel structure large-span grid starting frame rapid installation construction device in the field of grid construction technology. The steel structure large-span grid starting frame rapid installation construction device comprises a regional grid group, a GPS positioning device group, an electric fall chain group, a crane group, a central control system and a hoisting command system; one end of the electric fall chain group is installed on the hoisting side of the regional grid group, and the other end is installed on the upper side of the hook of the crane group, the central control system communicates and interconnects with the GPS positioning device group, and the hoisting command system communicates and interconnects with the electric fall chain group. The steel structure large-span grid starting frame rapid installation construction device saves adjustment time, reduces the trouble of multi-person operation, and reduces construction costs. In addition, the device can be constructed in any environment, is not restricted by the high-altitude operation position, increases the safety of operators, improves work efficiency, and speeds up construction progress.

The invention discloses a high-altitude operation anti-falling support, which relates to the technical field of substation equipment maintenance. The structure is as follows: a rectangular frame is composed of three vertical bars and two horizontal bars, a pedal is fixedly connected to the upper part of the rectangular frame by insulating bolts, a safety belt buckle rod base is welded to one side of the pedal, a safety belt buckle rod is sleeved on the safety belt buckle rod base, the other end of the safety belt buckle rod is sleeved with a safety belt buckle ring support, safety belt buckle rings are arranged on both sides of the safety belt buckle ring support, one end of the vertical arm is hinged to the connector by adjusting the fixing bolt B, one end of the horizontal arm is hinged to the vertical arm by adjusting the fixing bolt A, and the other end thereof is vertically provided with a hook. The beneficial effects of the invention are as follows: by using the high-altitude operation anti-falling support, the safety belt of the operator can be provided with a reliable buckle point, and the safety protection will not be lost during the transfer of the operation point, the operation safety risk of the operator is greatly reduced, and the maintenance efficiency is improved.

The invention relates to the technical field of treatment of abnormal chunks at outlets of pellet rotary kilns, and particularly discloses a full-automatic intelligent cleaning device for chunks of a screen water beam of a rotary kiln set and a working method. A rotary kiln door opening and closing system is mounted at a kiln door of a rotary kiln head, and the screen water beam is mounted on the inner side of the kiln door of the rotary kiln head; large materials falling from an outlet of the rotary kiln are received on the screen water beam, a foreign matter crushing device and a clamp taking-out device are installed on the rotary kiln platform, and the foreign matter crushing device and the clamp taking-out device are arranged outside the kiln door side by side; the foreign matter crushing device comprises a first hydraulic shear and a second hydraulic shear, a shear structure is formed between the first hydraulic shear and the second hydraulic shear, and a first hydraulic cylinder and a second hydraulic cylinder control the first hydraulic shear and the second hydraulic shear to clamp and shear large materials on the screen water beam; the clamp taking-out device comprises a clamp and a mechanical arm, and the mechanical arm controls the clamp to clamp out large materials on the screen water beam. The operation efficiency is improved, and the operation safety risk is reduced.

This utility model belongs to the field of hydropower station construction technology, specifically relating to an automatic wastewater removal and transportation system for the intake of small and medium-sized hydropower stations. It includes: a trash rack installed in front of the hydropower station intake to intercept wastewater in the water flow; a wastewater removal device installed at the top of the intake to clean up wastewater accumulated in front of the trash rack; a wastewater discharge channel installed downstream of the dam for transporting wastewater; and a hydraulic conveying device connected to the wastewater discharge channel to provide water flow power to flush the wastewater entering the discharge channel to the downstream river channel. The wastewater removal device transfers the cleaned wastewater to the starting end of the wastewater discharge channel, and the water flow provided by the hydraulic conveying device transports the wastewater along the discharge channel to the downstream river channel, achieving automatic wastewater removal. This system effectively overcomes the limitations of limited traffic space on the dam crest, large amounts of wastewater during flood season, and extreme weather conditions, significantly reducing manual labor and significantly improving wastewater removal efficiency and wastewater transfer capacity.

The invention discloses a paving robot suitable for wind power concrete tower drum installation, and relates to the technical field of wind power equipment installation and automatic construction, the paving robot comprises a body, a feeding unit, a material distribution unit and a mobile control device, a driving wheel and a positioning wheel in the mobile control device are arranged at the lower end of the body to control the paving robot to move on a tower drum; and the feeding unit and the distribution unit are controlled to complete paving of the base slurry and the epoxy resin, so that manual intervention is reduced, the safety risk of high-altitude work is reduced, the personnel safety can be ensured, the automation suitability is improved, and the construction stability is not influenced.

This invention discloses a method for rapid replacement of filling mortar with low rail lifting, comprising: lifting the rail and track slab at a low height; installing a series of cutting devices on the track slab, with the main body of the devices located between the track slab and the base; adjusting the height of the cutting mechanism through a positioning mechanism to control the mortar cutting thickness; operating the cutting trolley to cut the filling mortar laterally along the track; after one lateral cutting pass, moving the series of cutting devices longitudinally along the track; repeating the lateral cutting, longitudinal movement, and vertical height adjustment steps until the mortar under the entire track slab is cut; dismantling the series of cutting devices; cleaning the base surface; lowering the track slab for fine adjustment; injecting new filling mortar; and restoring the rail. This invention reduces the lifting height of the rail and track, reduces workload, alleviates the labor intensity of personnel, and improves construction efficiency; it is suitable for operation during maintenance windows on operating railway lines.

The invention, which belongs to the technical field of pressure monitoring, discloses a pressure monitoring device comprising a communication assembly, a support assembly and a pressure monitoring assembly. The communication assembly communicates the pressure container to be measured with the pressure monitoring assembly; the pressure monitoring assembly comprises a plurality of pressure monitoring devices for monitoring the pressure in the pressure container in real time; the plurality of pressure monitoring assemblies are used for meeting different pressure monitoring signal calling requirements; the supporting assembly is used for supporting the communicating assembly and the pressure monitoring assembly. The pressure monitoring device can effectively solve the problems that in the prior art, an in-service pressure container is only provided with one pressure measuring hole, multiple pressure monitoring devices cannot be installed, and the calling requirement of newly-added pressure monitoring signals of an intelligent control system cannot be met.

The invention discloses an offshore seabed crustal stress real-time monitoring system which comprises a crustal stress monitoring probe arranged in a seabed drill hole, the crustal stress monitoring probe is connected with a first armored cable, the top end of the first armored cable extends out of the seabed drill hole and is fixedly connected with a sinking block, the sinking block is arranged on the outer side of the seabed drill hole, and the first armored cable is connected with a second armored cable. A seabed drill hole is formed in the ground stress monitoring probe, a sealing piece is arranged on the outer side of the seabed drill hole, an acquisition computer is arranged in the sealing piece, the acquisition computer is electrically connected with the ground stress monitoring probe through a first armored cable, and the sealing piece is connected with a floating piece through a locking and releasing assembly. The submarine ground stress monitoring range is expanded, and the device can be installed on the seabed; the working safety risk of an offshore ground stress monitoring instrument is reduced, and instrument failure is avoided; and the submarine ground stress monitoring cost is reduced.

The invention provides an assembled steel plate suspended ceiling device and a construction method, the suspended ceiling device comprises a suspension connecting piece, a first keel, a second keel and a ceiling body, the suspension connecting piece is arranged at the top of the first keel, and the top end of the suspension connecting piece is provided with a screw part extending in the height direction of the first keel; the second keels and the first keels are connected in a staggered mode to form a latticed structure. And the top main body is arranged in the grid-shaped structure and is used for covering and sealing each grid unit. According to the device, factory prefabrication and on-site rapid assembly of the suspended ceiling system are achieved through modular design, traditional large-area high-altitude overhead welding operation is replaced with bolt connection and intermittent welding, the construction efficiency and the installation precision are remarkably improved, and the operation safety risk is reduced.

The invention discloses a broken roof caving area grouting and filling control system, which belongs to the field of grouting control systems and is characterized in that geological parameters of a caving area are accurately acquired through a monitoring module, and a control module constructs a three-dimensional model based on the parameters and calculates the volume required to be filled, so that the problem of large estimation deviation of the filling volume in the traditional technology is solved; the grouting material waste is reduced, the filling compactness is ensured, the fuzzy PID control algorithm is adopted for dynamically adjusting the grouting parameters, closed-loop control is achieved in combination with the real-time pressure and displacement data of the caving area, the problem of secondary caving or uneven material diffusion caused by fixed parameter grouting is avoided, the grouting precision is improved, the grouting effect evaluation unit is arranged in the grouting device, and the grouting effect evaluation effect is improved. The grouting effect is quantitatively evaluated through multi-dimensional data, whether secondary grout supplementing is needed or not is accurately judged, and it is ensured that the roof treatment effect is stable.

The application discloses a kind of power tower operation and inspection strategy making method based on real-time monitoring, it is related to power tower maintenance technical field, and its technical solution points include the following steps: collecting the historical deformation detection data of power tower, historical operation state data, historical environmental monitoring data and corresponding historical operation and inspection maintenance scheme and implementation effect data, establish the operation and inspection foundation database of power tower in severe cold area;Screening fault characteristics in operation and inspection foundation database, determine the correlation threshold of tower deformation, abnormal operation and environmental factors in severe cold area according to fault characteristics, establish the abnormal early warning threshold set of tower state;Based on multi-source monitoring terminal, obtain the real-time deformation data, real-time operation parameter and real-time environmental data of power tower in severe cold area, the effect is to realize the real-time perception of tower deformation, operation state and severe cold environment, greatly improve data integrity and availability, provide reliable basis for accurate state determination.

A chemical storage tank cleaning device comprises a crawler trolley, a swing mechanism, an auger and a jacking mechanism, the swing mechanism is rotationally arranged at the top of the crawler trolley, the side wall, close to the tail, of the auger is hinged to the swing mechanism in the X-axis direction, and the jacking mechanism is fixedly arranged on the swing mechanism in the Z-axis direction; the jacking mechanism is connected with the bottom close to the head end of the auger, and the jacking mechanism moves up and down along the Z axis so as to drive the auger to do pitching motion around the X axis; a driving part for providing power is arranged at the tail end of the packing auger, the driving part, the rotating mechanism, the jacking mechanism and the crawler trolley are all connected with a remote control device, and the remote control device controls the driving part, the jacking mechanism, the crawler trolley and the jacking mechanism to be linked, so that the packing auger enters the chemical storage tank along the manhole for solid waste cleaning. The invention further provides a chemical storage tank cleaning method. The tank cleaning operation efficiency of the storage tank can be effectively improved, an operator is prevented from directly entering the storage tank for operation, the labor intensity is reduced, and meanwhile, the operation safety and environmental protection risks are effectively reduced.

The utility model provides a biochemical pool surface scum and aged sludge collecting system in sewage treatment process, which comprises a biochemical pool body, a lifting device, a support, a water spraying pipeline and a plurality of nozzles, the lifting device is used for lifting the support, the support is arranged according to the shape of the biochemical pool body, and the water spraying pipeline is connected with a water inlet pipe of the water spraying pipeline through a telescopic hose. The water spraying pipeline is fixedly connected with the bracket, is arranged according to the shape of the biochemical pool body, is positioned on the pool wall side of the biochemical pool body, and is also connected with a plurality of branches arranged in parallel, and the branches are positioned in the middle of the biochemical pool body; and the nozzles are uniformly mounted on the water spraying pipeline and the branches respectively and are used for spraying and cleaning the pool wall and the ground of the biochemical pool body. The scum on the pool wall and the ground of the biochemical pool can be quickly and continuously cleaned, the mode of manually scrubbing the pool wall and manually cleaning and fishing the scum on the pool surface at the present stage is thoroughly changed, the labor cost of an enterprise and the safety risk of personnel operation are reduced, and the scum and aged sludge on the pool surface are quickly and continuously treated.

The present invention discloses an energy-saving fruit and vegetable tunnel dryer in the technical field of agricultural product drying, comprising an annular guide rail mechanism, a tunnel-type drying bin body, a plurality of closed doors, and a self-propelled transport vehicle arranged on the annular guide rail mechanism and performing circular motion along the annular guide rail mechanism. In this solution, when the self-propelled transport vehicle enters and exits the drying bin body, the inlet and outlet are effectively closed by hanging and placing the closed door and closing itself, which significantly reduces the heat loss of the entire drying process, improves the thermal efficiency of the drying process, and at the same time improves the energy utilization efficiency, reduces the energy consumption of the drying process, meets the environmental protection goal of energy conservation and emission reduction, and greatly reduces the overall production cost of the enterprise. In addition, the design of the annular track mechanism allows the self-propelled transport vehicle to achieve circular motion, ensuring that the fruit and vegetable raw materials can be continuously fed into the drying bin body, thereby enhancing the continuity of the production process.

The invention discloses a method for disassembling and assembling a balance chain unit of a gear rack vertical ship lift, which comprises the following steps of: S1, presetting a balance chain to be replaced in a ship chamber in advance, and splicing to form a plurality of sections; s2, a balance chain dismounting auxiliary traction device is arranged in the ship compartment; s3, a ship chamber side auxiliary dismounting and mounting device is arranged on the ship reception chamber; s4, arranging a counterweight side auxiliary dismounting and mounting device in the ship compartment; s5, the old balance chain is dismantled in a segmented mode, and meanwhile the ship reception chamber ascends and a balance weight descends for cooperation; and S6, a new balance chain is installed in a segmented mode, and meanwhile the ship reception chamber descends and the balance weight ascends for cooperation. Through the method, the problem of replacement of the balance chain unit of the gear rack vertical ship lift is solved, the construction technical difficulty is reduced, manpower is saved, tool equipment can be repeatedly used, resource investment is saved, the operation safety risk is reduced, the operation method is simple, and safe and stable operation of the ship lift is guaranteed.