48results about How to "Improve dredging efficiency" patented technology

The application discloses a municipal waterlogging-preventing structure and belongs to the technical field of municipal works. The waterlogging-preventing structure comprises a road surface, a water passing pipeline and a sewer pipeline, a well lid is arranged on the top of the water passing pipeline, a sedimentation groove is arranged at the bottom end of the water passing pipeline, and a dredging assembly for dredging sludge in the sedimentation groove is arranged at the communication position of the water passing pipeline and the sewer pipeline. Through the sedimentation groove and the dredging assembly, the sludge can be settled and accumulated to form sludge at the sedimentation groove after the rainwater carrying the sludge enters the water passing pipeline, so that the sludge is prevented from being accumulated to the sewer pipeline, and the subsequent dredging is facilitated. The setting of the dredging assembly effectively improves the dredging efficiency, reduces the dredging difficulty of the staff and is very convenient to operate.

The utility model provides a condenser dredging mechanism which comprises a condenser body, a cold water opening and a backflow opening are formed in the two ends of one side of the top of the condenser body respectively, an automatic feeding dredging mechanism is arranged on one side of the condenser body, and the dredging mechanism comprises a cleaning water tank. The cleaning water tank is installed below one side of the condenser body, feeding ports are formed in the two ends of the middle of the top of the cleaning water tank, storage boxes are installed at the two ends of the middle of the top of the cleaning water tank, the bottoms of the storage boxes communicate with the feeding ports, and material fixing roller bodies are installed between the two ends of the lower portions in cavities of the two storage boxes. A plurality of quantitative cavities are formed in the outer sides of the two material fixing roller bodies in an annular array mode, a user can conveniently clean the interior of the bent condensation pipeline through the dredging mechanism, and the situation that due to the fact that incrustation is accumulated in the condensation pipeline, the cross sectional area of the condensation pipeline is reduced, the water passing rate is reduced, and normal operation and efficacy of the condenser are affected is avoided.

This invention discloses a sludge-clearing agitator assembly and a robot. The sludge-clearing agitator assembly includes: a support frame including a volumetric cavity with a sludge inlet; a suction head mounted on the support frame and positioned near the sludge inlet; the suction head includes helical blades and a drive device, the drive device driving the helical blades to rotate, the rotation of the helical blades conveying sludge to the sludge inlet; a cutting groove on the outer periphery of the helical blades, and sludge-clearing teeth at the ends of the helical blades; a slurry pump mounted on the support frame for extracting sludge from the volumetric cavity; and a position adjustment device for driving the support frame to move. The robot includes the aforementioned agitator assembly. According to the sludge-clearing agitator assembly of this invention, by providing cutting grooves on the edges of the helical blades and sludge-clearing teeth at the ends of the helical blades, the sludge-clearing teeth can effectively break up hardened materials in the sludge, and the cutting grooves can further enhance the effect of the helical blades in cutting hardened materials in the sludge, thereby improving the sludge-clearing effect and efficiency of the agitator assembly.

The hydraulic engineering desilting device comprises a ship body, a mounting frame is fixedly mounted on the upper surface of the rear side of the ship body, and connecting rods are connected to the two sides of the mounting frame. By using the height adjusting mechanism, the reciprocating mechanism, the stirring mechanism and the mud pumping mechanism, the desilting efficiency and quality can be remarkably improved. Through cooperative work of the height adjusting mechanism and the reciprocating mechanism, the sludge scraping mechanism can be flexibly adjusted according to the actual sludge depth and go deep into the bottom of a sludge layer to work, meanwhile, the stirring mechanism scatters the sludge through gear transmission, the dredging range is expanded, the sludge removing process is accelerated, and therefore the dredging period is greatly shortened, and the dredging efficiency is improved. And the engineering cost is reduced. Besides, the stirring mechanism is matched with the sludge pumping mechanism, so that comprehensive and deep cleaning of the sludge is ensured, the common problem of incomplete dredging in a traditional dredging method is avoided, and the water body and the ecological environment are effectively protected from being affected by secondary pollution of residual sludge.

The utility model discloses municipal sewage pipeline dredging equipment which comprises a cylinder and three crawler walking mechanisms, two parallel connecting rods a are hinged to the front portion of each installation strip, the outer ends of the two parallel connecting rods a are hinged to the crawler walking mechanisms, a buffer is hinged to a lug seat, a sliding block is fixedly installed at the front end of the buffer, and the sliding block is connected with the cylinder. A front-back penetrating guide groove is formed in the lower portion of the sliding block and connected with the mounting strip in a matched and clamped mode, the sliding block is provided with a left-right penetrating pin column, the pin column penetrates through the kidney-shaped hole and is in sliding connection with the kidney-shaped hole, elastic telescopic rods are connected between the two sides of the sliding block and the crawler walking mechanism, and a self-rotating spray head is installed at the front end of the cylinder. Three evenly-distributed crawler walking mechanisms are arranged along the circumference of the cylinder and used for being pressed on the inner wall of a sewage pipe to walk, so that blockage in the deep position of a pipeline can be cleaned, the self-rotating spray head is driven by high-pressure water flow to rotate when spraying water from the front end, dirt is continuously sprayed and swept, the dirt is rapidly disintegrated and flows out along with the water flow, and the dredging efficiency is high.

The application belongs to the technical field of gate dredging, and particularly relates to a gate dredging device, which comprises a dredging main body, a hoisting mechanism, a translation type floating object salvaging mechanism and a soil breaking type gate bottom dredging mechanism. The translation type floating object salvaging mechanism is arranged on the dredging main body, the soil breaking type gate bottom dredging mechanism is arranged on the translation type floating object salvaging mechanism, and the hoisting mechanism is arranged on the left side of the dredging main body. The gate dredging device can solve the problems that workers need to be exposed to harsh environments for a long time in the manual dredging process, which can easily cause physical health risks, and that the traditional mechanical equipment has low dredging efficiency and can cause damage risks to water conservancy facilities. The soil breaking type gate bottom dredging mechanism can quickly and efficiently clean the sludge at the bottom of the gate, and the rotation design of the suction head can better adapt to different shapes and densities of the accumulated sludge, thereby improving the dredging efficiency.

The utility model discloses an automatic dredging device for a sand silo discharge pipe, which comprises an accommodating pipe, the accommodating pipe is communicated with the discharge pipe, a rotating mechanism and a lifting mechanism are mounted in the accommodating pipe, the rotating mechanism is connected with a spline shaft, the spline shaft is sleeved with a spline housing, and the outer ring of the spline housing is rotatably sleeved with a first shielding cover and a second shielding cover. The spline sleeve can be pushed to move on the outer ring of the spline shaft through the lifting mechanism, and the spline shaft and the spline sleeve are matched so that the spline sleeve can drive the elastic scraping plate to rotate in the moving process; in the rotating process, the elastic scraping plate can scrape off foreign matter attached to the inner wall of the discharging pipe, when the shielding cover arrives at the joint of the containing pipe and the discharging pipe, the foreign matter can slide to the outside of the tank body, the downtime can be shortened while the dredging efficiency is improved, and the safety risk of personnel can be reduced.

This invention relates to the field of wastewater treatment technology, specifically to a dynamic jet negative pressure sludge discharge device, comprising a gas-liquid separation chamber, a negative pressure sludge suction pipe, a gas-liquid separation net, a high-pressure air pump, a high-pressure water pump, a sludge loosening component, a jetting component, a lifting plate, a hydraulic driver, a first hydraulic telescopic rod, a second hydraulic telescopic rod, a third hydraulic telescopic rod, a first connecting rod, a second connecting rod, a feed pipe and lifting sleeve, and other components such as the sludge loosening component and the jetting component. This invention achieves water deaeration through the cooperation of the gas-liquid separation chamber, the gas-liquid separation net, and the high-pressure air pump; loosens the sludge through components such as the aeration rods of the sludge loosening component; and washes and breaks up the sludge through components such as the arc-shaped shovel and the anti-clogging nozzles of the jetting component. The second and third hydraulic telescopic rods, along with other components, allow for adjustment of the angle and height of multiple components. This solves the problems of incomplete cleaning, high energy consumption, poor adaptability, and easy clogging in existing sludge discharge devices, achieving efficient, precise, and stable cleaning of sludge at the bottom of the tank under different working conditions.

This invention discloses a rotary jet suction dredging device, comprising a floating platform on which a vacuum jet pump connected to a drive mechanism and a guide mechanism is mounted; the drive mechanism includes two mutually perpendicular hydraulic telescopic rods, one end of which is hinged to the floating platform, and the other end of which is connected to the side wall of the vacuum jet pump via a universal joint; the guide mechanism includes inner and outer guide sleeves fitted around the vacuum jet pump, the inner guide sleeve and the vacuum jet pump being connected via coaxial left and right rotating shafts, and a coaxial front and rear rotating shaft passing through the outer guide sleeve, one end of which is connected to the inner guide sleeve, and the other end of which is connected to the floating platform, with the front and rear rotating shafts perpendicular to the left and right rotating shafts; the outer guide sleeve is provided with front and rear clearance grooves to accommodate the passage of the inner guide sleeve; the vacuum jet pump is connected to a suction head, a high-pressure air supply pipe, and a sludge conveying pipe. This invention achieves dredging needs covering all water depths from shallow to deep water, with high dredging efficiency and safe and simple operation.

The utility model discloses a dry-mixed mortar stirring device which comprises a stirring tank, a feeding pipe is fixedly connected to the top of the stirring tank, a dredging component is arranged on the stirring tank, and a cleaning component is arranged in the stirring tank. The dredging component comprises a vertical plate, a lifting groove formed in one side of the vertical plate, a lifting block arranged in the lifting groove, a screw rod connected with the lifting block, a first motor fixedly connected with the top of the screw rod, a moving plate fixedly connected with one side of the lifting block and a dredging rod connected with the moving plate, and the lifting block is slidably connected with the lifting groove; through the arrangement of the stirring tank, the feeding pipe and the dredging component, the problems that when an existing stirring device is used, although raw materials can be stirred, the feeding port is prone to being blocked when the raw materials are added into the stirring tank, manual dredging is needed after the feeding port is blocked, dredging is relatively time-consuming and labor-consuming, and the stirring efficiency is high are solved. And therefore, the practicability is reduced.

The utility model relates to the technical field of pipelines, in particular to a pipeline dredging device which comprises a base, a cleaning assembly and an installation assembly, a hidden groove is formed in the inner side of the base, the cleaning assembly comprises a motor, the motor is fixedly arranged on the inner side of the hidden groove, and a threaded rod is fixedly arranged at the output end of the motor. A moving hole is formed in the base, a threaded rod is arranged in the base, a connecting rod is fixedly arranged in the base, the threaded rod is rotationally arranged on the inner side of the connecting rod, and a circular blocky moving block is arranged on the outer surface of the threaded rod in a threaded mode. Sludge and garbage in the pipeline are cleaned through a cleaning block and a dredging block, the pipeline dredging efficiency is improved, a mounting block is fixed to the outer surface of a threaded block in a threaded mode, an inserting plate is slidably inserted into the lower end of the base and the lower end of the mounting block, a positioning block is slidably inserted into a groove, and the dredging device can be conveniently mounted at the two ends of the pipeline.

The application discloses an amphibious operation vehicle plate mud breaking device, and belongs to amphibious cleaning operation mechanical equipment. The device is composed of a connecting support, a driving unit and a rotary cutting roller, wherein the connecting support is used for connecting an amphibious operation vehicle body or a working arm; the driving unit comprises a mounting base, left and right side plates, a driving motor, a chain transmission mechanism and the like; a motor mounting plate is changed in position through an adjusting screw to tension the chain; a sealing plate is quickly wrapped around a spacer to form a sealed transmission space through buckles and hasp lock rings; the rotary cutting roller is a left-right symmetrical regular polygon hollow structure, equal-distance cutting blades with staggered bending directions at the ends are mounted on the rotary cutting roller, sealing rubber sheets are arranged at both ends of the rotary cutting roller, and an inner center pipe is hermetically welded with a side sealing plate to form a sealed cavity. The application can forcibly pre-cut and break the riverbed plate mud, so that the spiral mud pump can be smoothly sucked and transported, and has the characteristics of lightweight structure, convenient maintenance, no cutting blind area and small rotary resistance.

The pipeline dredger is pre-buried in a pipeline and comprises a dredging piece and a connecting line, the dredging piece is of a sheet-shaped structure, a gap is formed in the dredging piece, and the gap extends from inside to outside along a preset path and penetrates through the peripheral face of the dredging piece so that the dredging piece can be divided into at least two structural units which are connected with each other; one end of the connecting line is fixedly connected with the free end of one of the structural units; when pulling force is applied to the connecting line, and the blocking force of the dredging piece by blockages in the pipeline reaches a set value, the structural units relatively displace under the combined action of the pulling force and the blocking force, so that the dredging piece is converted into a three-dimensional unfolding state from a flat folding state. When the connecting line is pulled, an effective contact area can be formed between the connecting line and a blockage object, extrusion and pushing effects are generated, a flat folded state can be converted into a three-dimensional unfolded state, and the problem that a traditional dredging tool is more and more tightly pushed and gets stuck is solved.

This utility model provides a sludge removal structure for the bottom of a sewage treatment tank, belonging to the field of sewage treatment technology. The sludge removal structure includes a sludge collection cylinder and a sludge retention component. The sludge retention component includes a sludge collection port, an anti-backflow pipe, a partitioning groove, a pure water tank, a water outlet, a sludge separating plate, a sludge discharge hole, and a sealing plate. Multiple partitioning grooves and sludge separating plates are provided. The sludge collection port is located on the lower inner wall of the sludge collection cylinder. The anti-backflow pipe is fixedly connected to the circumferential surface of the sludge collection port. The pure water tank is located on the upper inner wall of the sludge collection cylinder. Multiple partitioning grooves are located on the lower inner wall of the pure water tank and communicate with the inside of the sludge collection cylinder. The water outlet is located on the circumferential inner wall of the pure water tank. During the sludge removal process, the sludge is retained in the collection cylinder, while the clean water is filtered and guided into the pure water tank before being discharged.

The utility model discloses a pipeline dredging device, which belongs to the technical field of pipeline cleaning, and comprises a vehicle body, a reciprocating scraping mechanism and a combined scraping mechanism, the reciprocating scraping mechanism comprises a mounting rod, a movable component and a driving component; the driving assembly is installed in the vehicle body, and the movable assembly is also installed in the vehicle body and connected with the driving assembly. The mounting rod is connected with the driving assembly, the left end of the mounting rod slidably penetrates and extends to the outer side of the vehicle body and is connected with the combined scraping mechanism, and the combined scraping mechanism is mounted at the left end of the mounting rod. According to the material scraping device, the driving assembly works to drive the movable assembly to work, the movable assembly works to drive the mounting rod to do continuous reciprocating left-right movement, the mounting assembly mounted on the mounting rod drives the multiple material scraping plates to do reciprocating left-right movement synchronously, and sludge attached to the inner wall of a pipeline is scraped; therefore, the condition of incomplete cleaning caused by one-way scraping is avoided, and the pipeline dredging efficiency is improved.

This utility model is a conduit unblocking device with vacuum adsorption function. Its structure consists of a hollow unblocking line, one end of which is inserted into the power end of an impact drill. A unblocking head is fixed to the other end of the hollow unblocking line. A transparent protective shell is installed on the outer side of the hollow unblocking line near the power end of the impact drill. Through holes are opened in the hollow unblocking line inside the transparent protective shell and on the hollow unblocking line near the connection point with the unblocking head. A filter device is connected to the side of the transparent protective shell via a PVC vacuum pipe, and the filter device is connected to a vacuum pump via another PVC vacuum pipe. The advantages of this utility model are: it uses an electric drill bit for unblocking, and the high-speed rotation of the electric drill drives the drill bit to break up the blockage in the conduit, effectively improving work efficiency. Furthermore, the introduction of a vacuum system can quickly and efficiently adsorb debris in the conduit, truly unblocking the conduit and improving unblocking efficiency. The connection and assembly between the various components are convenient and quick, allowing for effective maintenance and replacement, and it is easy to use.

This invention relates to the field of engineering data processing, and more particularly to an intelligent data acquisition and processing method and system for dredging engineering projects in tunnel drainage systems. The method includes the following steps: receiving processing tasks based on a cloud-based dredging management platform; setting acquisition constraints based on the processing tasks to obtain an acquisition constraint set; driving a pipeline detection robot to perform operational detection based on the acquisition constraint set, outputting a first dataset; adaptively optimizing the first dataset to output a second dataset; performing index-based analysis on the second dataset to output multi-dimensional analysis indicators; and planning the dredging operation path based on the multi-dimensional analysis indicators, synchronously uploading the data to the cloud-based dredging management platform to complete the data acquisition and analysis operation. This invention optimizes dredging operation planning, improves dredging efficiency, and enhances the accurate structural analysis of the drainage system in the early stages through precise data acquisition and processing.

The utility model relates to pipeline dredging technical field discloses a water conservancy pipeline dredging device for water conservancy projects, including the axle rod, the outside fixed connection of axle rod has adsorption subassembly, the outside middle left side fixed connection of axle rod has the scraper, the right side terminal fixed connection of axle rod has the drill bit subassembly, the outside middle right side fixed connection of axle rod has the brush off subassembly, the outside slide connection of brush off subassembly has the water pipe, the drill bit subassembly includes the connector, the inside fixed connection of connector in the outside terminal of axle rod, in the utility model, through the cooperation of buckle, spring, pull rod and pull ring, realize the quick disassembly and installation of drill bit, and pull ring can drive buckle to separate from the card slot, and it is convenient according to the different rigid drill of pipeline blockage degree replacement, and the drill bit replacement time is greatly shortened, improves the dredging operation efficiency, reduces the maintenance cost, enhances the adaptability of device to complex jamming.

The application belongs to the technical field of cleaning silt, and particularly relates to a river dredging device for water conservancy treatment engineering and a use method thereof, which comprises a digging bucket, one side of the digging bucket is fixedly connected with a mounting head, an opening is arranged on the side of the digging bucket away from the mounting head, the top surface of the digging bucket is fixedly connected with a connecting pipe, and the bottom end of the connecting pipe extends into the digging bucket. The silt in the river is dug out by means of the excavator controlling the digging bucket. After the silt enters the digging bucket, the motor drives the gear to rotate, the gear drives the first sealing plate to move downwards, so that the port of the digging bucket is sealed. At this time, the silt in the digging bucket cannot flow out, so that the number of times of digging silt is reduced. Meanwhile, the silt in the digging bucket is directly sucked to the top of the dump truck through the silt suction pump through the connecting pipe, so that the silt is quickly loaded into the dump truck, and the efficiency of river dredging is greatly improved.

The application relates to the technical field of traditional Chinese medicine decoction piece processing, and discloses a screening and impurity removing equipment for traditional Chinese medicine decoction piece processing, which comprises a bottom plate, a mounting frame is fixed on the bottom plate, a hopper is fixed on the mounting frame, two soft-bristle rollers are rotationally connected to the hopper, movable comb tooth plates are arranged on the sides of the two soft-bristle rollers, cleaning tooth plates are inserted into the comb tooth plates, dust hoods and first electric push rods are respectively fixed on the hopper; an inclined vibrating frame is arranged below the hopper, a screening plate is installed on the vibrating frame, and a plurality of movable triangular scrapers are arranged on the screening plate; the two soft-bristle rollers can effectively remove dust particles attached to the surface of the traditional Chinese medicine decoction piece, so that damage to the traditional Chinese medicine decoction piece can be avoided; the soft-bristle rollers are combined with the vibrating screening plate, so that the cleaning efficiency can be greatly improved, and manual intervention can be reduced.

The utility model discloses a visual pipeline dredging device, including the pole body and endoscope, the pole body is hollow structure, and the upper end is connected with the hand -held pull ring, and the lower fixed visual part has, the pole body passes through the cleaning head and fixed gasket in proper order, and fixed gasket and cleaning head are based on the nut and pole body fixed, and endoscope is fixedly connected with the pole body, and the lens of endoscope stretches into the hollow portion of pole body and is fixed in visual part. The utility model discloses through the lens of endoscope clearly observed the situation inside pipeline to accurate judgment pipeline's blockage situation, through selecting the cleaning head of adaptation to the dredging of pipeline, avoids under the condition of different material blocked pipeline, due to the pipeline rupture of violent dredging, has improved the efficiency and accuracy of pipeline dredging.

The utility model provides a kind of self-cleaning structure equipment of siltation-preventing of Yellow River diversion sluice, it is related to sluice siltation-preventing technical field, including sluice, the outside of sluice is provided with silt pumping mechanism;Silt pumping mechanism includes controller, the back of controller is fixedly connected with the front of sluice, the bottom of sluice is fixedly connected with ultrasonic sensor, the inner wall of sluice is fixedly connected with submersible silt pumping pump, the input end of submersible silt pumping pump is through sluice and extends to the inside of sluice, the output end of submersible silt pumping pump is fixedly communicated with transmission pipe.This kind of self-cleaning structure equipment of siltation-preventing of Yellow River diversion sluice, by ultrasonic sensor can detect the thickness of silt accumulation at any time, in combination with submersible silt pumping pump, controller and transmission pipe, can automatically adjust the speed of submersible silt pumping pump according to the thickness of silt, when silt reaches certain thickness, submersible silt pumping pump starts to work and pumps out the silt above, not only reduce the land used due to pumped silt, reduce artificial maintenance cost.

This utility model discloses a small circular pipe dredging robot, relating to the field of circular pipe dredging technology, comprising: a walking frame; a triangular pyramidal reamer head, rotatably mounted on the front end of the walking frame; a drive device, mounted on the walking frame, used to drive the triangular pyramidal reamer head to rotate; and a sludge extraction device, mounted on the walking frame, used to extract the mud-water mixture broken up by the triangular pyramidal reamer head. The triangular pyramidal reamer head of this utility model is designed to effectively cut and break up sludge and sediment during rotation, improving dredging efficiency. The distribution of fragments in different directions on the triangular pyramidal reamer head allows it to better contact and agitate the sludge during rotation, thus completing the dredging task faster, while also further cutting and breaking up the sludge and sediment. Water nozzles in different directions distributed on the triangular pyramidal reamer head cooperate with the rotation of the reamer head.

The utility model belongs to the technical field of Jakcup platform leg mounting and pile pulling, and particularly relates to an auxiliary flushing device for Jakcup platform leg mounting and pile pulling, which comprises a support connected with an ROV (remote operated vehicle) mechanical arm, a plurality of mounting holes are arranged at the bottom end of the support, and high-pressure nozzles are arranged in the mounting holes through adjusting components. The support comprises a first square plate, a plurality of mounting holes are formed in the bottom end of the first square plate, the first circulating groove is formed in the first square plate and communicates with the mounting holes, the two ends of the first circulating groove are slidably connected with second square plates, and a plurality of mounting holes are formed in the bottom ends of the second square plates. The support connected with the ROV mechanical arm is arranged, and the high-pressure spray head is installed on the support through the adjusting assembly, so that the surface of a pile leg can be comprehensively flushed when Jakcup platform leg installing and pile pulling are conducted, the desilting effect is improved, and the desilting efficiency is improved.

The embodiment of the utility model discloses an automatic dredging device and cigarette making machine equipment. The automatic dredging device comprises a correlation type photoelectric detection switch, a control unit and an air injection unit, the correlation type photoelectric detection switch is used for detecting the height of the material level in the material level detection pipe; the air injection unit is configured to inject air into the material level detection pipe in an angle-adjustable manner; the control unit is configured to control the air injection unit to inject air to dredge the material level detection pipe when the material level exceeds the height limit value. The material level height is detected through the correlation type photoelectric detection switch arranged on the material level detection pipe, and when the height exceeds a height limit value, the air injection unit is automatically started to inject air for dredging; the technical problems that in the prior art, a material level detection pipe is prone to being blocked, dredging can only be conducted manually after material blocking, dredging difficulty is large, dredging time is long, the process quality is affected by single-batch material breakage, and labor cost is high are solved.

The utility model discloses a slag guide pipe dredging device of a slag cooler, and belongs to the technical field of slag guide pipe dredging of slag coolers. A slag guide pipe dredging device of a slag cooler comprises an opening formed in the lower portion of the bent portion of a slag guide pipe and a dredging assembly used for dredging the slag guide pipe through the opening, a flange plate is welded to the lower portion of the bent portion of the slag guide pipe and corresponds to the opening, and a cover plate is inserted into the flange plate from the lower portion; the dredging assembly comprises a baffle mounted on the surface of the flange plate and a drill rod penetrating through the baffle to dredge the slag guide pipe; the opening is formed in the surface of the slag guide pipe in a cutting mode, the flange plate is welded to the opening, the dredging process can be conveniently conducted from the middle of the slag guide pipe, the dredging efficiency is improved, the opening can be closed under the effect of the cover plate, and normal use of the slag guide pipe is prevented from being affected by the opening.

The invention belongs to the technical field of hydraulic engineering, and particularly relates to river channel dredging equipment for hydraulic engineering construction, which comprises a dredging ship, a rotating shaft is rotatably arranged on one side of the upper end of the dredging ship, a rotating arm is fixedly connected to the upper end of the rotating shaft, a rack rod is slidably connected to one end of the rotating arm, and a mounting plate is fixedly connected to the lower end of the rack rod. Sliding blocks are slidably connected to the two sides of the lower end face of the mounting plate, a cleaning shovel is rotationally arranged on one side of the lower end of each sliding block, and a polymerization type pushing-aside assembly for preventing aquatic plants from interfering with work of the cleaning shovels is further arranged on the desilting ship. Aquatic plants can be pushed to the periphery by utilizing a polymerization type pushing assembly, and the situations that the cleaning shovel is wound by stems, leaves or root systems of the plants in the descending process, so that mechanical resistance is suddenly increased, the cleaning shovel is clamped, even the storage space of the cleaning shovel is occupied by the aquatic plants, and sludge cannot normally enter an inner cavity of the cleaning shovel are avoided; and the desilting efficiency can be improved.

This utility model provides a novel color sorter for rice processing, belonging to the field of color sorters. It includes a mounting frame and a color sorter mounted on the mounting frame. The top of the mounting frame has two sets of feeding pipes connected to the color sorter. It also includes a clearing mechanism: the clearing mechanism is mounted on the mounting frame and can clear the feeding pipes, preventing excessive and rapid rice feeding that could clog the inner wall of the feeding pipes. This utility model, by setting up a clearing mechanism, uses a cam to indirectly strike the extrusion plate, and with the cooperation of a spring, drives the radial movement of the paddle plate to directly act on the blockage point. This results in high clearing efficiency and a lower rice breakage rate compared to traditional methods of striking and vibrating, thus improving the color sorting effect.

The utility model discloses a kind of automatic anti-dust blocking devices of denitration ash conveying system, a kind of automatic anti-dust blocking devices of denitration ash conveying system, including ash conveying pipe body, the ash conveying pipe body top is provided with first hopper, second hopper and third hopper, ash conveying pipe body and first hopper, second hopper and third hopper between are all provided with warehouse pump, second pressure detection meter and third pressure detection meter are equipped on the warehouse pump of first hopper and second hopper lower end, ash conveying pipe body side is provided with air compressor pump, air compressor pump is connected with shunt pipe, total valve is provided on shunt pipe, shunt pipe side is connected with third connecting pipe, second connecting pipe, first connecting pipe and fourth connecting pipe, fourth connecting pipe, third connecting pipe, second connecting pipe and first connecting pipe other end are all connected with ash conveying pipe body.This device can realize the automatic dredging of ash conveying pipe body, avoid ash conveying pipe body blockage, guarantee the ash conveying efficiency of ash conveying pipe body.