64results about How to "Reduce dredging costs" patented technology

A system usable for dredging may include a suction bypass system for automatically maintaining a sufficiently high, liquid flow velocity. Preferably, a flow sensor monitors flow velocity and when the monitor flow decreases to an extent that plugging may occur, a liquid bypass valve is opened and an intake line valve is closed until the flow velocity increases whereupon the valves are returned to their original positions. An automatic level cut removes a relatively constant layer of material from a contoured bottom. The illustrated automatic level cut process comprises adjusting the force with which the suction head engages the bottom, moving the suction head in a direction opposite to the direction of the swing of the boom to keep the suction head pointing straight ahead, and maintaining the suction head to stay substantially level with the bottom even though the angle of the boom increases to the surface of the water body. A leveling device comprising a parallelogram linkage may be used to maintain the suction head substantially level with the bottom. A predetermined amount of load force may be applied by the head against the bottom. Herein, a winch and cable and the controller are operated to lift some of the head weight until the desired predetermined head force is applied to the bottom. A walking system moves the pipe intake for taking a sideways cut without the use of a spud pole, anchors and anchor lines. Large blade members or feet travels in an endless path with the feet entering the bottom while vertically disposed and remained disposed vertically while entering and leaving the bottom so as not to dig or stir the bottom that will cause large liquid turbidity. A low turbidity head cleaning system prevents the head from being plugged and debris or sticky material. Preferably, a rotatable cone-shaped head is provided with spaced rings and bars that define sized openings that limit the size of debris entering into the intake. A fixed comb removes material stuck on the rotating head. A shroud has an open bottom side thereby preventing bottom material from escaping and increasing with turbidity. A suction head articulation system keeps the head pointed in the forward direction of dredge advancement to create a smooth finish grade.

Disclosed are a polluted bottom sediment environment-friendly dredging system and a dredging method of the system. The system comprises a ship and a sediment suction square box, a comprehensive control room, a ship position GPS position indicator, a positioning pile and a winch are arranged on the ship, and the winch is connected with the sediment suction square box through a cable rope. The sediment suction square box is connected with a sediment suction pump through a sediment suction pipeline. A bottom sediment GPS position indicator and a fathometer are arranged on one side of the sediment suction square box, an underwater illumination lamp and an underwater camera are arranged on the other side of the suction square box, a fluidizing device is arranged in the sediment suction square box, a sealing device is arranged at the bottom of the suction square box, and an exhaust pipe is arranged at the top of the sediment suction square box. A controller is arranged in the comprehensive control room on the ship. The dredging method of the system comprises the steps that the ship is in place, sediment suction is prepared, environment-friendly sediment suction is carried out, leaving is prepared, and the ship leaves. High-precision positioning of a dredged position and precise control over the dredging process are achieved, secondary pollution caused by sediment diffusion in the sediment taking process is avoided, dredging cost is effectively lowered, and dredging efficiency is effectively improved.

An attachment to a drainage hose for use on a stockpiling barge that includes: a fluid pervious bag formed of a flexible fabric material, the fluid pervious bag having an open end and a closed end, a ballast material attached to or retained within the closed end of the fluid pervious bag, and means for securing the open end of the fluid pervious bag about a hose. Also disclosed are the attachment in combination with a drainage hose and a stockpiling barge, a method of filtering runoff water from a stockpiling barge through the use of the attachments, and a method of preventing non-dissolved organic or inorganic contaminants from flowing from a stockpiling barge into a body of water through the use of the attachments.

The invention relates to an environment-friendly dredger dredging reamer, belonging to the field of dredging technology. The environment-friendly dredger dredging reamer comprises a reamer and a non-proliferation cover, and is characterized in that the non-proliferation cover consists of a fixed cover and a movable cover, wherein, the fixed cover is connected with the movable cover by a shaft, and the movable cover is connected with a hydraulic cylinder and is controlled to be opened by a hydraulic structure mode. The dredging reamer saves the time used for clearing out sundries, improves the utilization rate of dredging time of a dredger, and reduces the dredging cost. The proposal has the advantages of being convenient for dredging construction, reducing working strength of construction personnel, improving the construction efficiency of environment-friendly dredging, etc. The invention has good promotional value.

The invention provides a non-mudhold double-body drag suction dredger and a construction method thereof and relates to dredging equipment and a construction method thereof. The technical scheme is that: the drag suction dredger equipped with a propelling device, drag suction dredging systems, a boat-loading system, deck machinery and a mud boat binding device is used for dredging and taking sand.The invention is characterized in that: the drag suction dredger is a non-mudhold double-body drag suction dredger; the dug sand is loaded into a selfpropelled mud boat anchored between two boat bodies of the drag suction dredger through the boat-loading system arranged on decks of the boat bodies on the two sides; and after being loaded, the mud boats are conveyed to the dredge filling position in a selfpropelled mode. The non-mudhold double-body drag suction dredger and the construction method thereof can be applied to large-scale dredge filling projects and sand-taking projects in abyssal regions far away from coasts.

The invention relates to a sludge-sucking device, in particular to a robot which can fully automatically suck sludge. The sludge-sucking robot comprises a suction pipe coiling assembly, a sludge pumping assembly, a suction pipe and a suction pipe guide assembly, wherein the suction pipe guide assembly is the intelligent kernel of the sludge-sucking robot; and the suction pipe guide assembly can automatically realize forward, backward, left-turn and right-turn motions in a water tank, automatically detect the depth of sludge to be sucked, extend the suction pipe into the sludge, and give orders to the sludge pumping assembly and the suction pipe coiling assembly on the bank to control the working modes so as to automatically suck the sludge from the water treating tank to a specified sludge collecting tank. Compared with the prior art, the sludge-sucking robot can automatically and thoroughly clean underwater sludge in an unattended mode, thereby thoroughly changing the traditional sludge-sucking mode, emancipating people from exhausting labor, saving the high dredging cost, and being a scientific, energy-saving and environment-friendly invention in deed.

The invention discloses a hilly and mountain area runoff accumulation system with ditches, tubes and kilns. The system comprises a drainage ditch (2) and an invisible water sucking tube (3), wherein the invisible water sucking tube (3) is arranged at the bottom of the drainage ditch (2); a plurality of accumulation devices are mounted at intervals on the invisible water sucking tube (3); the accumulation devices comprise rain collection kilns (5), water collection and conveying tubes (4) and overflowing water conveying tubes (6); holes are formed in the walls of the rain collection kilns (5);the upstream of the invisible water sucking tube (3) is connected with the walls of the rain collection kilns (5) through the water collection and conveying tubes (4); and the downstream of the invisible water sucking tube (3) is connected with the holes in the walls of the rain collection kilns (5) through the overflowing water conveying tubes (6). By adopting the system, upper and lower rain collection kilns (5) on a slope are connected through the invisible water sucking tube (3) along a road, rainwater is accumulated layer by layer, after the rain collection kilns are all full of water, the excessive water can be discharged into a ditch at the lowermost part or other accumulation facilities, then efficient accumulation of runoff rainwater is achieved, and the problems of insect prevention and treatment, water conservation and drought resist irrigation in agricultural production in hilly and mountain areas in shortage of water resources are solved.

The invention provides a horizontal underground culvert pipe blockage dredging robot and a working method thereof. The robot comprises a travelling mechanism, a dredging machine body, a beating and dredging mechanism, a high-pressure dredging mechanism and a camera shooting mechanism, wherein the dredging machine body is arranged in the travelling mechanism, the high-pressure dredging mechanism isarranged at the front end of the dredging machine body, the high-pressure dredging mechanism is connected with an external high-pressure water pump through a conveying line, the high-pressure water pump is connected with an external water source, the camera shooting mechanism is arranged in the middle of the high-pressure dredging mechanism, the camera shooting mechanism is in data connection with an external upper computer through the conveying line, the beating and dredging mechanism are further arranged at the lower end of the high-pressure dredging mechanism, and a driven travelling mechanism is arranged at the rear end of the dredging machine body. According to the robot and the method, the travelling mechanism is arranged, so that a robot can travel in a culvert pipe, the influencein the culvert pipe is collected through the camera shooting mechanism and is transmitted back to the upper computer until a blocking point is found, the blockage is dredged by the cooperation of thebeating and dredging mechanism and the high-pressure dredging mechanism, so that the dredging of the culvert pipe blockage is completed.

The invention discloses a dredger. The dredger can separate silt and water, and is simple in structure and high in dredging efficiency. The dredger comprises a ship body, a silt containing case, a silt collection device and a silt separating device. The silt separating device comprises a separating case. The base plate of the separating case is fixed on the silt containing case and a dividing plate arranged in the horizontal direction along the ship body is welded in the separating case. The dividing plate divides the cavity of the separating case into a silt cavity and a residual water cavity. A filter plate is arranged in the separating case and located above the silt cavity. The silt collection device comprises a first pump and a second pump. A water inlet pipe of the first pump extends outward from the ship body and is used for inserting into water-silt mixture, and a water outlet pipe of the second pump extends into a filter cavity of the separating case.

The invention discloses a sludge treatment device for a park artificial lake. The sludge treatment device comprises a dredger body which is provided with a control chamber, a lifting device is connected to the control chamber, and a sledge suction device is connected to the lifting device; the sledge suction device comprises sledge suction frames, sledge suction pipes and sludge conveying pipes; the sledge suction frames comprises the first sledge suction frame and the second sledge suction frame, the first sledge suction frame is internally provided with the sludge conveying pipes, the second sledge suction frame is internally provided with the sledge suction pipes, and a sludge disturbing device is arranged between the sledge suction pipes; and a connection frame is arranged between the first sledge suction frame and the second sledge suction frame and provided with a sucked sledge digging mechanism. A method comprises the steps of 1, construction preparation, 2, dredger selection and sludge conveying pipeline installation, 3, dredger positioning, and 4, lakebed sludge removing through a dredger. The sludge treatment device is simple, easy to achieve, environmentally friendly, free of pollution, low in cost and high in efficiency, and the pollution problem of the artificial lake of a central landscape part is well solved. The method is simple, easy to achieve, scientific, convenient, capable of reducing labor cost, high in working efficiency and wide in application range.

The invention discloses a dredging and sludge disposal method for an open pit, which comprises the following steps of: building an intercepting ditch on an upper step of the open pit, intercepting catchment at the periphery of the open pit to a draining pump pool, and directly draining; meanwhile, constructing a water filtering structure in a dumping site for dewatering the cleaned sludge, then performing mud and water layering treatment at the pit bottom, that is, pumping out water at the upper part of the sludge by adopting a buoyancy tank pump, and then hovelling and transporting the sludgeoutwards. The sludge transported out of the mining pit is poured into a pre-constructed water filtering structure of a dumping site, and natural drying and dehydration are carried out by utilizing the gravity of the sludge. According to the method, open-pit mining equipment, the permeability of water in the sludge and the filtering performance of coarse gravels are fully utilized, the equipment investment cost is relatively low, and a very good effect on sludge dewatering is achieved.

The invention provides an underwater garbage dredger with an anti-wrap scraper. The dredger comprises an operating room, a power device, a hull, a mud storage tank, a front cleaning device with a cutter tooth conveyor belt, a bracket and the anti-wrap scraper. The dredger is characterized in that the operating room and the power device are arranged at the rear part of the hull; the mud storage tank is arranged at the middle part of the hull; the front cleaning device with the cutter tooth conveyor belt and the bracket are arranged in the front of the hull; the lower end of the bracket is fixedly connected with the hull; the upper end of the bracket is connected with the front cleaning device with the cutter tooth conveyor belt through a bracket shaft; the front cleaning device with the cutter tooth conveyor belt comprises cutter teeth and the conveyor belt; the cutter teeth are fixed on the surface of the conveyor belt; the anti-wrap scraper is fixedly connected with the hull through a support rod; a digging tooth in and out groove is arranged in the surface of the anti-wrap scraper; and an anti-wrap scraper shaft is arranged at the center of the anti-wrap scraper. According to the invention, the underwater garbage dredger can clean up soft and hard garbage, and realizes continuous operation; the dredging efficiency is improved; the dredging cost is reduced; and the dredging quality is high.

The invention provides an accurate control and dredging method for polluted sediments in a seasonal river. The accurate control and dredging method for the polluted sediments in the seasonal river comprises the following steps that (1) a vehicle-mounted computer, a camera, a position finder, a sensor and a laser range finder are arranged on an excavator; (2) dredging units are zoned; (3) setting-out for dredging construction is conducted; (4) a dredging machine moves in place; (5) dredging construction of the sediments is conducted; and (6) the dredging machine leaves the dredging field. The accurate control and dredging method is highly targeted and high in automation degree, high-precision positioning of the excavator is achieved, the pertinence and dredging precision of dredging work are greatly improved, and the dredging cost is effectively reduced while the subsequent disposal pressure is relieved; real-time monitoring in the dredging process is achieved, the accuracy of operation by workers is effectively improved, and the dredging efficiency is effectively improved; and accurate dredging of the polluted sediments is ensured, and accordingly the problem of secondary pollution caused by sediment diffusion when the sediments are obtained is solved.

The invention discloses a water supply and drainage rapid dredging device. The water supply and drainage rapid dredging device comprises a base plate; a collecting barrel is fixedly installed at the top of the base plate; a vacuum pump is fixedly installed on one side of the top of the base plate; an air inlet of the vacuum pump is in threaded connection with an air pipe; one end of the air pipe penetrates through the collecting barrel and extends into the collecting barrel; and the invention further discloses an application method of the water supply and drainage rapid dredging device. The water supply and drainage rapid dredging device disclosed by the invention has the beneficial effects that the structure is compact; a motor with a band-type brake can be used for driving a sludge suction box to move downwards; sludge can be sucked into the collecting barrel through the vacuum pump, the sludge suction box, a corrugated pipe and a sludge inlet pipe; a waterproof motor can be used fordriving a smashing cutter to scatter the sludge; a driving motor can be used for driving a driving wheel and a guide wheel to rotate on the ground; moreover, the collecting barrel can be cleaned through a nozzle, a cleaning motor and a brush, so that manual dredging is not required, the dredging efficiency can be improved, the dredging cost can be lowered, the labor intensity of workers can be alleviated, the body health of the workers is guaranteed, and convenience in use is achieved.

The invention relates to fiber block loosening equipment, in particular to an anti-blocking loosening machine of automobile sound isolation cotton. The anti-blocking loosening machine comprises a front loosening mechanism, a fiber conveying mechanism and a back loosening mechanism, wherein the fiber conveying mechanism is connected with the front loosening mechanism and the back loosening mechanism; the fiber block loosening equipment also comprises a fiber conduction mechanism; the fiber conduction mechanism comprises a plurality of conduction balls, a ball storage element, a lifting machine and a recovery element; the conduction balls are stored in the ball storage element; each conduction ball is provided with a ferromagnetic ball core; the ball storage element is positioned above the fiber conveying mechanism; the ball storage element comprises a front ball discharging pipe, a back ball discharging pipe and a ball feeding pipe; the recovery element comprises a front recovery magnetic plate, a front recovery pipe and a back recovery pipe. The invention aims at solving the problem that the conveying device can be easily blocked by fiber, and aims at providing the anti-blocking loosening machine of the automobile sound isolation cotton with the advantage that a transportation pipeline can be automatically dredged.

The invention discloses a crawler type pipeline crawling robot. The crawler type pipeline crawling robot comprises a compartment, a pair of metal side plates, an illuminating lamp, a high-definition camera, a pair of first slotted cards, a pair of crawler belts and a pair of motors. The lower end of the compartment is connected with a metal base plate. The pair of metal side plates are located onthe two sides of the metal base plate correspondingly. The illuminating lamp is arranged at the front end of the metal base plate. The high-definition camera is arranged at the top end of the compartment. The first slotted cards are arranged between the corresponding metal side plates and the metal base plate. The crawler belts are arranged on the outer sides of the corresponding metal side plates. Driving wheels are mounted on one sides of the corresponding crawler belts. The motors are arranged on the inner sides of the corresponding metal side plates. The driving wheels are sleeved on output shafts of the corresponding motors. The crawler type pipeline crawling robot can adapt to different pipe diameters, adopts a crawler type crawling mode, is stable in crawling, adopts the high-definition color two-degree-of-freedom camera of 4 megapixels or more and the illuminating lamp with a circular surface light source and can move in a pipeline with the high water level and detect hidden danger in the pipeline in time.

The invention provides a sand-blocking type soil and water conservation ecological bank protection which includes a retaining wall with an empty box structure arranged along an edge water of a riverway. The retaining wall comprises a bottom plate located at the bottom of the riverway, a front baffle and a rear baffle arranged on the bottom plate, wherein the front baffle is located on the water facing side of the retaining wall, the rear baffle is located on the soil retaining side of the retaining wall, and the elevations of the front baffle and the rear baffle are lower than a normal water level of the riverway; the height of the front baffle is higher than that of the rear baffle, an accommodating cavity is formed in the retaining wall, the accommodating cavity is provided with soil materials, and submerged plants are planted on the soil materials. The sand-blocking type soil and water conservation ecological bank protection is beneficial to water and soil conservation and reducingthe amount of sludge in the riverway; through optimization of the internal structure and overall arrangement of bank protection, the space above the soil materials in the retaining wall of the empty box forms a retard mud sand pit; through retention of terrestrial plants and aquatic plants, water flow becomes slow; and through high and low arrangement of the front and rear plates, silts and scrapsare deposited in the retard mud sand pit as soon as possible when passing, and it is beneficial to soil and water conservation and reducing the amount of the sludge in the riverway.

The invention relates to the technical field of environmental protection and specifically relates to a silt sampler with a depth measurement and positioning function and a desilting method. The silt sampler comprises a sampling drill pipe and a measurement platform. The sampling drill pipe runs through the top portion of the measurement platform; the sampling drill pipe is in threaded connection with the measurement platform; the lower end of the sampling drill pipe is provided with a drill bit; the sampling drill pipe is hollow inside; the inner cavity of the sampling drill pipe forms a sampling tube; the lower end of the sampling drill pipe is provided with the drill bit; the bottom portion of the drill bit is equipped with an electromagnetic gate plate; a multi-stage connecting rod is arranged on the sampling drill pipe; and the top portion of the multi-stage connecting rod is equipped with a data signal acquisition and transmitting device. Through arrangement of the sampling tube,the electromagnetic gate plate, the data signal acquisition and transmitting device, a contact switch, a drill pipe depth limit plate and a GPS locator, the silt sampler can conveniently collect siltsamples, precisely locate collection points, and precisely measure the pH value and temperature of the silt; the measurement data is estimated through assessment software; the GPS is used to preciselylocate the sampling location.

The invention discloses a pool bottom sludge pretreatment robot which comprises a main body device, a sludge conveying device and a side surface sludge cleaning device. The side sludge cleaning device is installed on the side of the main body device; and the sludge conveying device is installed behind the main body device. The equipment is driven into a pool, a movable crawler belt moves, the sludge shoveling depth is adjusted by adjusting the height of a front collecting part, and meanwhile, sludge can be shoveled up and transported with smaller force. A sludge shoveling mechanism is driven by a distance adjusting mechanism to move to a designated position, and the angle and the distance of side sludge cleaning can be adjusted, so that cleaning can be conducted in a larger area. The sludge is shoveled into a rear collecting box through the sludge shoveling mechanism, and is conveyed into a sludge box through a sludge conveying mechanism. Through the sludge conveying device, sludge in the sludge box is finally conveyed to the edge of a pool or a sludge conveying vehicle, so that a large amount of time is saved, the sludge conveying efficiency is improved, and the integration of desilting and sludge conveying is completed.

The invention relates to an environment-friendly dredging reamer of a dredger and belongs to the technical field of dredging. The environment-friendly dredging reamer of the dredger comprises a reamer body and an anti-diffusion hood, and is characterized in that the anti-diffusion hood is composed of a fixed hood body and a movable hood body; the fixed hood body is connected with the movable hood body through a shaft; the movable hood body is connected with a hydraulic cylinder; the movable hood body is controlled to open in a hydraulic structural mode. The sundry cleaning time is shortened, the time utilization rate of dredging of the dredger is improved, and the dredging cost is reduced. According to the scheme, the environment-friendly dredging reamer of the dredger has the advantages of bringing convenience to dredging construction, relieving working intensity of constructors, improving environment-friendly dredging construction efficiency and the like, and has good popularization value.

The invention discloses a cutter suction dredging device easy to rotate. By arranging a turntable that can rotate relative to a hull and positioning by double positioning piles, the hull can rotate around the positioning piles without using anchor cables to pull the hull to rotate, and the rotation efficiency of the hull is greatly improved; by eliminating the complicated operations of pulling thehull to rotate by the anchor cables, the rotation flexibility of the hull is effectively improved; meanwhile, the arrangement of an anchor cable driving device on a river bank is avoided, the dredging cost is greatly reduced, and the labor cost is reduced; a single positioning pile on the turntable goes deep into a river bottom for positioning, and the turntable is rotated to drive the hull to step, so that the stepping and advancing efficiency of the hull can be effectively improved; in addition, the positioning piles are folded by folding assemblies so as to improve the passing rate of thehull; and finally, for a wider river channel, a cutter suction head has small fluctuation and high stability under the action of no anchor cable connection on both sides.

The invention discloses a dredging device for a pile foundation sounding pipe. The dredging device comprises a water tank (1). A water pump (2) is arranged in the water tank (1). The water pump (2) isconnected with the inlet end of a booster pump (4) through a soft pipe (3). The outlet end of the booster pump (4) is connected with one end of a bending pipe (5) through a soft pipe (3). The other end of the bending pipe (5) is connected with one end of a valve (6), and the other end of the valve (6) is connected with a set of steel casing pipe (7). The bottom of the set of steel casing pipe (7)is provided with a dredging drill bit (8). Compared with the prior art that blockage happens when a hole drilling and core taking manner is adopted for dredging a pile foundation sounding pipe, the dredging device has the beneficial effects that the dredging cost is low, and the dredging efficiency is high. In addition, the dredging device further has the beneficial effects that operation is easy, practicability is high, and cyclic use can be achieved.

The invention discloses a waterway maintenance method in the technical field of river channel management for preparing silt tanks to prevent side beach from accumulating to the waterway. The specific steps of the waterway maintenance method for preparing silt tanks to prevent side beach from silting up to the waterway are as follows: S1: along the waterway direction, use a dredger to excavate the silt preparation tank at the side beach of the channel; S2: Use the water gauge to control the excavation depth of the silt storage tank to ensure that the depth of the silt storage tank is greater than the dredging and maintenance depth of the channel; The side slope of the trough is constructed by step excavation method to ensure that the side slope of the silt storage tank will not collapse when it is scoured by the water flow; For silt cleaning, in the present invention, silt troughs are provided on the side beach of the waterway, which can effectively prevent the silt on the side beach from entering the waterway and squeeze the waterway, causing the size of the waterway to continuously shrink, which can improve the dredging efficiency of the waterway and reduce Dredging costs for waterways.

The invention discloses a dredging and blockage preventing device for water pipes in riverways. The device includes a fixing column which is of a hollow structure, the left side of the fixing column is welded to a short column the left side of which is fixedly connected with a drill, a limiting plate is sleeved with the lateral surface of the fixing column and positioned on the right side of the short column, and the upper and lower ends of the lateral surface of the limiting plate are movably connected with two corresponding ends of two long rods. According to the dredging and blockage preventing device for the water pipes in the riverways, through the arrangement of a sliding block, an L-shaped rod, a vertical plate, a connecting rod, mobile blocks, the long rods, short rods, the limiting plate and mobile rods, after the drill penetrates into sludge, the sliding block and the L-shaped rod are pushed to move forwards to drive the connecting rod on the vertical plate, and therefore the mobile blocks get closer to the limiting plate, under the effect of force, the mobile rods are expanded by the short rods and the long rods and inserted into the sludge to pull the sludge outwards; in this way, the whole piece of sludge is cleaned out, the operation is convenient and the dredging costs are saved.

The invention discloses landscape type combined sewage treatment equipment and a method thereof. The equipment falls into an underground unit and an overground unit. The underground unit is sequentially partitioned into a grid, an adjustment tank, a sludge tank, an anaerobic tank, an aerobic tank, a sedimentation tank and an advanced treatment tank (optional), and guarantees that effluent water stably reaches the first-level A standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002). Specifically, the anaerobic tank is composed of sectional anaerobicbaffle plates, the aerobic tank adopts a microporous aeration and three-dimensional soft filler device, a rotary drum filter is arranged in the sedimentation tank, and a membrane bioreactor and a disinfection treatment apparatus can be optionally equipped in the advanced treatment tank according to treatment requirements. The overground unit mainly comprises a vegetation area and a control system, wherein plants are fixed by a support net, the root systems extend into the anaerobic tank and aerobic tank, and the control system is located above the sedimentation tank. The integrated sewage treatment equipment provided by the invention is low in energy consumption, flexible in combination and stable in performance, and has the functions of environment beautifying, education and publicity and the like.

The invention provides desilting equipment for a water conservancy riverway, and relates to the technical field of water conservancy riverway desilting, the desilting equipment comprises a main body box, a stirring loosening mechanism, a suction mechanism, a separation mechanism and a treatment mechanism, the stirring loosening mechanism comprises a transverse plate, a telescopic rod, a push plate and a filter screen, the transverse plate is horizontally and fixedly connected to the right side of the main body box, and the telescopic rod is inserted into the transverse plate; the push plate is fixedly connected to the output end of the telescopic rod, the right end of the push plate is obliquely arranged, the filter screen is vertically and fixedly connected to the top of the push plate, a through groove is formed in the transverse plate, and the filter screen extends to the position above the transverse plate through the through groove. And in addition, when the movable rod moves, the filter screen can be cleaned through the cleaning brush, blockage of the filter screen is avoided, the effect is better when the filter screen blocks turbid water during treatment, and the overall dredging effect is improved.

The invention discloses a pvc-u drainage pipe. The pvc-u drainage pipe comprises a sewage disposal box, the left side wall and the right side wall of the sewage disposal box fixedly communicate with afirst drainage pipe body and a second drainage pipe body correspondingly, a rectangular opening is formed in the front side wall of the sewage disposal box, a filter screen plate fixedly communicateswith the inner wall of the sewage disposal box, and a circular through hole is formed in the rear side wall of the sewage disposal box. A fixing block is fixedly connected to the hole wall of the circular through hole, a cavity is formed in the fixing block, a first sliding block is slidably connected to the inner wall of the cavity, a connecting rod is fixedly connected to the side, close to thesewage disposal box, of the first sliding block, a spring movably sleeves the rod wall of the connecting rod, and the two ends of the spring are fixedly connected with the side wall of the cavity andthe side wall of the first sliding block correspondingly. According to the pipe, it is guaranteed that sewage cannot block the pipeline, the sewage passing rate of the drainage pipe is increased, time and labor are saved in the dredging process, the PVC-U drainage pipe does not need to be replaced again, the pipeline dredging cost is reduced, and sewage in a sewage tank is prevented from drippingon the wall.

The invention relates to a railway drainage ditch desilting device. The desilting device comprises a flat car (1), and is characterized in that a mechanical arm (2) is installed at the left end of the flat car (1), a rotary parabolic belt (10) is installed at the right end of the flat car (1), a suction pipe (12) is installed at the front end of the mechanical arm (2), an integral installation frame (11) is installed on the flat car (1) located between the mechanical arm (2) and the rotary parabolic belt (10), the integral installation frame (11) is sequentially provided with a rough filtration dust remover (3), a fine filtration dust remover (4) and a power room (5) from left to right, the rough filtration dust remover (3) is connected with the fine filtration dust remover (4), and the power room (5) is sequentially provided with a fan (6), an engine (7) and a radiator (8) from left to right. A drainage ditch desilting operation device is integrated on the railway flat car, overall loading and unloading are achieved, use is convenient and flexible, the desilting cost is low, railway drainage ditch cleaning mechanization is achieved, and the drainage ditch desilting operation quality and efficiency are greatly improved.