82results about How to "Improve the salvage effect" patented technology

The invention relates to a salvage ship for cleaning suspended substances through differential pressure suction, which is composed of a ship body and a salvaging device; the ship body is a carrier for the salvaging device; the salvaging device comprises an underwater through-flow pipeline, a water pump, a filter screen, a compression air nozzle, and a suspended substance collecting hopper; the underwater through-flow pipeline is arranged in the ship body and extends from a ship head to a stern; the water pump and the filter screen are arranged in the underwater through-flow pipeline; the water pump is started and a pressure difference is formed between both ends of the underwater through-flow pipeline; mixed water of the underwater mixed suspended substances of the ship head is flowed from the ship head to the stern at high speed, and filtered by the filter screen in midway; the suspended substances in the mixed water is stopped by the filter screen, and water is sprayed out from the stern to form a pushing force for the ship advancing. The suspended substances stayed on the filter screen are blown to the suspended substance collecting hopper through the compression air nozzle. The salvage ship has the advantages of being new in design, reasonable in structure, good in suspended substance salvaging effect, high in efficiency, low in cost, energy-saving, environment-friendly, and others.

The invention discloses an automatic salvage device for suspended garbage in a water body. The automatic salvage device for the suspended garbage in the water body comprises a moving ship body, a garbage salvage device is arranged on the end portion of the moving ship body, a garbage collection box is arranged on the moving ship body, a garbage packing device is arranged in the garbage collectionbox, and the garbage salvage device comprises a garbage conveying mechanism and a garbage collection rake tooth mechanism. The garbage conveying mechanism comprises a conveying bracket and rotating rollers, and a conveying chain strip is arranged between the two rotating rollers. The garbage collection rake tooth mechanism comprises two bracket plates and supporting rod frames, a steering mechanism is further arranged at the upper ends of the supporting rod frames, a receiving frame is fixedly connected between the two supporting rod frames, a vertical rotating rod is arranged on the receivingframe, a salvage net plate is connected to the lower end of the vertical rotating rod, and the steering mechanism is fixedly installed at the upper end of the vertical rotating rod. According to thescheme, water body garbage salvage, garbage crushing and garbage packing are combined, so that secondary pollution caused by garbage transfer is prevented, the salvage range is expanded, and the efficiency of garbage salvage is improved.

The invention discloses an environment-friendly waste salvaging device for water body pollution, and belongs to the field of riverway garbage salvaging. The environment-friendly waste salvaging devicefor water body pollution comprises a shell, a box and a front support, the box is arranged on the inner wall of the bottom of the shell, the front support is connected to the side wall of the front end of the shell, an angle adjusting assembly is arranged at the top of the box, the angle adjusting assembly is connected with a telescopic rod, and elastic assemblies are arranged at the two ends ofthe telescopic rod; a collecting net is connected to the bottom of the stretching assembly, a cover plate is arranged at the top of the angle adjusting assembly, two supporting rods are arranged at the top of the cover plate, a vibration assembly is arranged at the tops of the supporting rods, a conveying assembly is arranged between the vibration assembly and the rotating rollers, and a dehydration device, a pollutant classification box and a rotating motor are arranged at the bottom of the shell; according to the device, riverways with different widths can be automatically fished, the bearing capacity of the shell can be increased through dehydration, the continuous working time can be prolonged, and pollutants can be conveniently classified and treated.

The invention discloses a hydraulic retractable fishing spear, which relates to a retractable fishing spear and solves the problems that the conventional retractable fishing spear cannot be applied to blockage release fishing of a continuous oil pipe of a horizontal well and the retractable fishing spear cannot be retracted when the blockage release fails so as to cause high construction risk. The lower end inner wall of an upper joint is connected with the upper end outer wall of a pull rod by screw thread, a sealing gasket is arranged between the upper end face of the pull rod and the upper joint, the lower end outer wall of the upper joint is connected with the upper end inner wall of a protective sleeve by screw thread, the lower end inner wall of the protective sleeve is in sliding friction with the secondary outer shoulder side wall of a piston, a spring is sleeved on the primary outer shoulder side wall of the piston, the secondary inner shoulder side wall of the piston is in sliding friction with the lower outer wall of the pull rod, the upper end outer wall of a spear rod is connected with the lower inner wall of the pull rod by screw thread, a slip is sleeved on the spear rod, the outer wall of the slip is connected with the primary inner shoulder side wall of the piston by screw thread, the pull rod is provided with a through hole, and the inner wall of the piston is provided with an annular rabbet. The hydraulic retractable fishing spear is applied to underground fishing operation of oil fields.

The invention relates to a garbage fishing device, in particular to a garbage fishing device for a sports swimming pool. The technical purpose of the invention is to provide the garbage fishing device for the sports swimming pool, which has low fishing difficulty, good fishing effect and convenience in operation. In achieve the technical purpose, the invention provides the garbage fishing device for the sports swimming pool. The garbage fishing device comprises a first gear, a first motor, a second gear, a swing rod, a sliding shaft, a first lifting rod, a first electric wheel, a first pulling line, a spring and an irony filter screen; a second motor, a garbage can, a disinfectant tank and a right bracket are sequentially arranged from left to right at the top of a base; the top of the second motor is connected with a first air cylinder; the left side of the first air cylinder is connected with a lifting frame. According to the garbage fishing device provided by the invention, the effects of low fishing difficulty, good fishing effect and convenience in operation are achieved, therefore, people can remove garbage in the swimming pool better, and a good swimming pool environment is created for swimmers.

The invention discloses a water surface salvaging device for water pollution treatment, which comprises a ship body, a salvaging assembly is arranged on the ship body, an air cushion is arranged at the bottom of the ship body, and the salvaging assembly is arranged at the tail end of a box body; the salvaging assembly comprises a cutting device and a transferring device. The device is simple in structure and high in practicability; algae on the water surface are cut and separated through the cutting device, and then the cut floating algae are further transferred into the ship body through thetransferring device; under the action of the conveying belt, the driving claw is further driven to convey the cut aquatic plants into the ship body, and the actual fishing effect is greatly improved;under the action of the poking claws, algae and the like on the driving claws are smoothly transferred into the ship body, so that the transfer effect is improved; and good application prospects are realized.

The invention relates to the technical field of environmental protection equipment, particularly to a rotary grillage machine. Multiple sets of fishing hooks in the grillage machine body are cleaned and treated through a cleaning device, thus effectively preventing impurities fished by the grillage machine body from adhering to the multiple sets of fishing hooks, preventing the impurities from submerging into water again along with the multiple sets of fishing hooks in a rotation state and causing secondary pollution of the water, effectively improving the working effect of the grillage machine, and improving the practicability and reliability. The rotary grillage machine comprises the grillage machine body and the cleaning device, and the cleaning device is installed at the top end of thegrillage machine.

The invention provides a lake surface floating algae removing and fishing device, and relates to the field of fresh water purification. The lake surface floating algae removing and fishing device comprises a rectangular frame body, foam floating blocks are fixedly connected to the bottom of the rectangular frame body, and the bottom of the rectangular frame body is provided with a fishing groove;the back portion of the rectangular frame body is provided with an elliptical slot, and the elliptical slot is internally provided with an elliptical block; a fishing mechanism is fixedly connected tothe back portion of the rectangular frame body, and scraping devices are arranged between the elliptical slot and the elliptical block; a transmission device is connected to the fishing mechanism, and a centrifugal mechanism is arranged at the back portion of the rectangular frame body. According to the lake surface floating algae removing and fishing device, fishing and filtering plates can fishalgae in water and have a water filtering function, the water can be discharged while the algae is collected, the problem of excessive water content of fished algae is effectively solved, and the fishing effect is improved.

The invention discloses a blue algae collection system, and particularly relates to a collection system for collecting blue algae on lake surfaces, which mainly comprises a collection pipeline, crushing equipment and a power pump, wherein the collection pipeline is provided with a floating block; the outer surfaces of an axial longest end and an axial shortest end of the pipeline are at least provided with a gravity regulator; an included angle between a plane formed by a collection port of the collection pipeline and the central axis line of the collection pipeline is less than 90 DEG; and the crushing equipment and the power pump are orderly arranged on the rear part of the collection pipeline and are sequentially connected. When the blue algae collection system is adopted, the collection pipeline is always at an appropriate depth underwater so as to increase collection area; the crushing equipment crushes various sundries so as to protect the power pump and also crush the blue algae to be favorable for the subsequent processing of the blue algae; and various systems in the collection system are mutually matched, and the system improves the fishing efficiency and has simple manufacturing technology and convenient operation.

The invention discloses a rubber recycling and reusing treatment method and relates to the technical field of rubber processing. A galvanized steel pipe hot-dip galvanizing treatment technology is completed through the cooperation of a galvanized steel pipe hot-dip galvanizing treatment device, and the rubber recycling and reusing treatment is completed through cooperation of a rubber recycling and reusing treatment device. The rubber recycling and reusing treatment device comprises a rack, a rubbing mechanism, a chopping mechanism, a flotation device and a water tank, and the water tank is horizontally arranged on the ground. The rubbing mechanism rubs back and forth through rubber skin of two cylindrical structures, rubber in a hopper drops to the part between the two pieces of rubber skin through gravity, the two pieces of the rubber skin alternatively swing back and forth through rotating of eccentric wheels, and the surface of the rubber clamped between the two pieces of rubber skin is rubbed back and forth through cleaning bags and cleaning hair on the surfaces of the two pieces of rubber skin to remove the dirt on the surface of the rubber.

The invention relates to the technical field of oil exploitation, in particular to a downhole operation fishing tool. The downhole operation fishing tool comprises a shell, a first power mechanism, stabilizing mechanisms, a second power mechanism, a first grabbing mechanism and a second grabbing mechanism, wherein the first power mechanism, the second power mechanism and the second grabbing mechanism are sequentially arranged in the shell, the stabilizing mechanisms are arranged on the two sides outside the shell, and the first grabbing mechanism is installed at the position close to the bottom of the shell. According to the scheme, through the power mechanisms, the stabilizing mechanisms and the grabbing mechanisms, the underground stability and fishing diversity of the fishing tool are improved, the requirement for fishing work in different oil wells is met, the fishing efficiency is improved, and the use cost is reduced.

The invention discloses a papermaking sewage efficient treatment device, which comprises a sewage treatment tank, a pre-screening device arranged on the left side in the sewage treatment tank, a baffle arranged on the right side of the pre-screening device and a fishing device arranged on the right side of the baffle. The pre-screening device comprises supporting plates arranged on the front sideand the rear side of the sewage treatment tank, a first motor arranged on the supporting plates, a rotating shaft arranged on the first motor, a winding drum arranged on the rotating shaft, a steel wire rope arranged on the winding drum, a connecting seat arranged below the steel wire rope, sliding blocks arranged on the left side and the right side of the connecting seat, and a lifting device arranged below the connecting seat; by means of the device, the large impurities in sewage can be removed through the pre-screening device, wherein air is jetted through the salvaging device, so that residues are gathered at one position; a salvaging net moves the residues up and down and left and right, so that the salvaging effect is better, the purification degree is higher, and meanwhile higher efficiency is achieved.

The invention discloses a floating material cleaning away device in a municipal park lake. The floating material cleaning away device comprises a hull. The inner left end of the hull is provided witha supporting stand column. The top end of the supporting stand column is provided with a top plate. The middle of the supporting stand column is further provided with a guiding sleeve. The outer sidewall of the guiding sleeve is provided with a supporting plate. The top plate is provided with a lifting hydraulic cylinder. A supporting frame is provided with a transverse shaft. The transverse shaft is provided with a fixing sleeve. A salvage net plates formed by arraying a plurality of round rings at equal intervals is arranged on the outer side wall of the fixing sleeve. A fixing frame is further arranged on the lower end surface of the supporting plate. A material collecting groove is formed in the lower end of the fixing frame. A rotating motor is further arranged in the hull. A main shaft of the rotating motor is provided with a driving gear. A driven gear is arranged on the lower side wall of the supporting column. The driven gear meshes with the driving gear. The floating material cleaning away device is simple in structure, high in efficiency of lack surface floating material salvage and good in cleaning effect, floating materials are conveniently and uniformly collected, operation is simple, and the practicability is high.

The invention discloses a lever-pulley-triggered static pressure fishing device. The device comprises an outer pipe, an upper piston, a lower piston and touch rods; the upper piston is arranged on the upper portion of an inner cavity of the outer pipe, the lower piston is arranged on the lower portion of the inner cavity of the outer pipe, and a plurality of V-shaped arms are hinged to the circumferential side wall of the lower piston through a plurality of pivot shafts and can rotate around the pivot shafts; upper pulleys are connected to the top ends of the V-shaped arms in a pivot mode and connected into clamping grooves formed in the inner wall of the outer pipes in a clamped mode, and lower pulleys are connected to the lower ends of the V-shaped arms in a pivot mode; a guide rod is fixed to the middle of the lower piston, a conical head is assembled at the lower end of the guide rod and can slide on the guide rod up and down, and the upper end of the conical head can touch the lower pulleys to enable the lower pulleys to drive the V-shaped arms to rotate around the pivot shafts. The device has the advantage that the problems that in related drilling operation, downhole junk is difficult to fish, and fishing objects are limited are thoroughly solved.

The invention provides an automatic machining cleaning device. The automatic machining cleaning device comprises a cleaning tank, a first motor, a driving wheel, a driven wheel, a transmission belt, afirst air cylinder, a second air cylinder and a sieving bucket; the driving wheel and the driven wheel which are horizontally arranged are arranged at the top in the cleaning tank, and the driving wheel and the driven wheel are connected through the transmission belt; the first air cylinder and the second air cylinder which are arranged vertically are arranged on the lower part of a supporting bock, one end of the sieving bucket is connected with the first air cylinder, and the other end of the sieving bucket is connected with the second air cylinder; a vertically-arranged hollow rotating shaft is arranged in the position, on the lower part of a feeding inlet, of the cleaning tank; and the hollow rotating shaft is provided with a plurality of stirring blades, an air pipe is arranged abovethe stirring blades, and the air pipe communicates with the hollow rotating shaft. According to the automatic machining cleaning device, the machining progress is accelerated, meanwhile, parts can beprevented from being pasted to a stirring device, and the cleaning effect is ensured.

The invention discloses an automatic salvage device for suspended garbage in water. The automatic salvage device comprises a machine body, the bottom of the machine body is connected with a floating body, one side of the machine body is fixedly connected with a first supporting column and a second supporting column, two movable shafts are movably connected between the first supporting column and the second supporting column, the surface of each movable shaft is fixedly connected with a conveying wheel, the conveying wheels are connected through a conveying belt, a plurality of salvage plates are fixedly connected with the outer surface of the conveying belt, first filtering nets are fixedly connected with the two sides of each salvage plate, a material guide plate is fixedly connected withthe side, away from each first filtering net, of the corresponding salvage plate, the outer wall of the first supporting column is fixedly connected with a rotating mechanism, a stirring mechanism isfixedly connected with the position, close to each salvage plate, of the top of the machine body, a material storage cavity is arranged at the top of the machine body and the side, away from the first supporting column, of the stirring mechanism, and the two sides of the machine body are fixedly connected with storage boxes. The automatic salvage device can improve the salvage efficiency and effect.

The invention discloses an environmental-friendly fallen leaf salvage vehicle for a small river. The environmental-friendly fallen leaf salvage vehicle comprises a vehicle frame. The vehicle frame comprises two transverse beams and two side transverse beams; the two side transverse beams are located between the two transverse beams; the two ends of each side transverse beam are fixed to the ends of the two transverse beams correspondingly; wheels are hinged to connecting shafts; and the connecting shafts are in screw joint with screw holes formed in the ends of the transverse beams correspondingly. A plurality of pushing air cylinders are fixed to each transverse beam; pushing rods of the pushing air cylinders penetrate through the transverse beams and are fixed to connecting blocks correspondingly; a salvage frame is located below the vehicle frame; and the connecting blocks are fixed to the top face of the edge part of the salvage frame. A through groove is formed in a base plate of the salvage frame; and a filtering net is fixed to the base plate of the salvage frame and covers the through groove. The environmental-friendly fallen leaf salvage vehicle can conduct salvage for the surface of the small river, and is good in salvage effect and high in efficiency.

The invention relates to a floating type river cleaning device. The floating type river cleaning device comprises a building platform and buoys, wherein the buoys are symmetrically installed at the bottom of the building platform, a base plate is fixedly connected to the top of the building platform, a stirring mechanism which is used for stirring garbage on the surface of a river is arranged on the top of the base plate, object blocking devices which are used for blocking the garbage on the surface of the river are arranged above the buoys, a salvage device which is used for cleaning the garbage on the surface of the river is arranged on the outer side of the building platform, and a scraping device which is used for cleaning the salvage device is arranged above the building platform. According to the floating type river cleaning device, the garbage which floats on the surface of the river is blocked and protected through a circular sleeve, a plurality of stirring plates rotate and stir on the surface of the river, the water surface vibrates to generate water waves, the water waves are diffused to the periphery of the inner wall of the circular sleeve circle by circle, and the garbage on the surface of the river fluctuates along with the water waves, so that the garbage on the surface of the river is conveniently salvaged in a concentrated mode, the situation that the floating garbage can be cleaned up by repeated salvage for many times is avoided, the practicability is high, and the salvage effect is good.

The invention discloses a tool for a drilling and production process, especially a fisher for fishing downhole objects in the drilling and production process, belonging to the technical field of drilling and production equipment. The fisher comprises a connecting rod, wherein a two-way slidable outer sleeve is sleeved on the connecting rod, and a group of radially openable pawls are arranged at the end of the connecting rod. When the outer sleeve moves away from the pawls, the pawls can depart from a cavity of the outer sleeve and open; and when the outer sleeve moves to the pawls, the pawls close and are contained in the cavity of the outer sleeve. The fisher disclosed by the invention is capable of fishing a downhole rope form object conveniently and quickly in oil and gas drilling production by the gravity action of the outer sleeve.

The invention discloses edible oil production and processing equipment, which comprises an impurity removal case; supporting legs are fixedly mounted at the bottom of the impurity removal case, a lifting pump is fixedly mounted at the top of the impurity removal case, a collecting hopper is fixedly mounted at the top end of the interior of the impurity removal case, and a flow limiting device is fixedly mounted at the bottom of the collecting hopper; a falling flat pipe is fixedly installed at the bottom of the flow limiting device, and an impurity suction device is fixedly installed on the side face of the falling flat pipe. The flow limiting device is used for controlling the flow speed, wherein light impurities such as soybean hulls are removed through the impurity suction device, the impurity removal filter screen is driven by the vibrator to conduct vibration screening, and therefore heavy impurities such as pebble mud blocks are removed, and the impurity storage box collects screened impurities and impurities filtered by the impurity suction device; finally, the oil pressing raw materials fall into the cleaning machine barrel from the communicating opening to be received by the lifting basket, and after cleaning water is added into the cleaning machine barrel, the rotating motor drives the brushing blades to rotate so as to brush and clean the oil pressing raw materials.

The invention belongs to the field of marine operation, particularly relates to an auxiliary salvaging device for ocean engineering and a method thereof, and aims to solve the problems that an existing salvaging device is often simple in structure and poor in salvaging effect, needs to be carried by a heavy carrier after salvaging and is inconvenient to use. A fishing column and a supporting column are fixedly connected to the top of the ship body, a large winch is fixedly installed on the top of the ship body, the top end of the supporting column is fixedly connected with the middle section of the fishing column, a supporting rod is fixedly connected to the top of the ship body, and a transverse rod is fixedly connected to the top end of the supporting rod. When the fishing tool is used, articles can be clamped through the three clamping rods and the three clamping blocks, clamping is firm, the fishing effect is improved, the fished articles can be conveniently placed by adjusting the rectangular rod after fishing, and use is convenient.

The invention discloses a water surface garbage cleaning ship. The water surface garbage cleaning ship includes a hull; the hull is connected with a supporting frame; the supporting frame is rotationally connected with a fishing shaft; the fishing shaft is connected with two fishing arms; the supporting frame is provided with a front supporting rod, a rear supporting rod and a longitudinal beam. Aplurality of fishing ropes are arranged between the front supporting rod and the rear supporting rod; a fishing cross arm is arranged between the two fishing arms; a cleaning frame is connected to the longitudinal beams in a sliding mode, a cleaning return device is installed between the cleaning frame and the supporting frame, the cleaning frame is provided with an upper cross beam, a pluralityof cleaning push rods are connected to the upper cross beam, a storage bin located below the rear portion of the rear supporting rod is arranged on the front portion of the hull, and a conveying device is installed on the front portion of the hull. The water surface garbage cleaning ship has the advantages of being high in water surface floating body cleaning speed, high in efficiency, capable ofeffectively reducing labor intensity, simple in structure, convenient to use and operate and capable of reducing production cost.

The invention relates to the field of drilling, and discloses a fishing tool and a fishing method using the same. The fishing tool comprises a tool body, a pull hook, a screw tap and at least one magnet, wherein the tool body is of a hollow structure, and a notch is formed in the lower end of the tool body; an opening is formed in the side wall of the lower end of the tool body, and the connectingend of the pull hook is rotatably arranged at the opening; the magnet is arranged on the inner surface of the side wall of the lower end of the tool body; the screw tap is arranged in the tool body and can move up and down, and the working end of the screw tap is located on the upper portion of the magnet. The fishing tool has a good fishing effect, and particularly has a good fishing effect on adrilling pipe deeply buried in a well wall; the length of the pull hook and the diameter of the tool body can be selected and adjusted to adapt to different drilling structures according to conditions of the well wall and an upper well diameter.

The invention discloses an automatic fishing device for an oil well pipeline, comprising: a hoisting platform, the upper end of the hoisting platform is connected with a crane outside the oil well pipeline through a steel rope, and a vertical support plate is arranged in the middle of the lower end of the hoisting platform, The lower end of the vertical support plate is provided with an overturning groove, and an overturning plate is arranged in the overturning groove. The motor shafts are connected, the servo deceleration motor is fixed on the vertical support plate, a strong magnetic adsorption layer is arranged on the upper end of the turning plate, and several first fishing hooks are uniformly arranged on the lower end side of the turning plate A plurality of second fishing hooks are evenly arranged on the other side of the lower end of the turnover plate, and the directions of the first fishing hooks and the second fishing hooks are opposite.

The invention relates to an immersed blue algae collection and dehydration platform, which comprises a shell, a drainage device, a face algae introduction device, a nano air flotation device, a mixedflow flocculating device and a venturi device, wherein an inner cavity is arranged in the shell; a floating box is arranged at the periphery of the inner cavity; a filter screen frame is arranged; themixed flow flocculating device is arranged in an introduction hole; an overflow door is arranged at the outer edge of the bottom plate of the introduction hole; and a guide plate is spliced outwardsat the outer edge of the bottom plate of the introduction hole. The Venturi device is arranged at the periphery of the shell, so that polluted water areas are efficiently purified through a multi-stage separation and filtration mode, the overall structure design is ingenious, separated blue algae and purified water are prevented from being mixed again, the pollution of flocculating agents to the water areas is greatly reduced, and the implementation cost of purifying the water areas is reduced.

The invention provides a seabed cable grabbing device. The device comprises a rack, wherein a counterweight device is arranged on the rack, a top power cylinder is arranged between the rack and the counterweight device, and the top power cylinder comprises a top rod cavity and a top rodless cavity; a grabbing device and a bottom power cylinder driving the grabbing device are arranged on the rack,wherein the bottom power cylinder comprises a bottom rod cavity and a bottom rodless cavity, and the top rodless cavity communicates with the bottom rodless cavity; and the top rod cavity communicateswith the bottom rod cavity. According to the scheme, the counterweight device is lifted, the bottom power cylinder drives the grabbing device to be closed to bag cables, then the rack is lifted to fish the cables out of a seabed ditch, and according to the scheme, the device is simple and compact in structure, simple to operate and good in fishing effect. According to a cable grabbing method provided, only an overall lifting steel wire rope and a counterweight device lifting steel wire rope need to be operated, the cables buried in a seabed can be fished, the operation is simple, and the fishing effect is good.

The invention belongs to the technical field of garbage clearing instruments, and discloses a floating garbage collecting device and a control method thereof. The floating garbage collecting device is provided with a fixing module, a guide module, a garbage collecting and transferring module and a ship body, wherein the fixing module is used for fixing the ship body to a fixing pile through a mooring rope, the guide module is used for enabling floating garbage to enter a collection area through a shore-based guide plate, the garbage collecting and transferring module is used for collecting the garbage through a collecting plate, gathering the garbage to the center, collecting the garbage in a rail moving mode and conveying the garbage into a shoreside garbage collecting box through a conveying belt, and the ship body is used for collecting the floating garbage and providing a water carrier. According to the floating garbage collecting device and the control method thereof, water floating garbage is gathered through water flow, the floating garbage is rapidly recovered, and the labor intensity and the number of workers are reduced; meanwhile, the floating garbage in the water area can be automatically collected and cleared, and the manual fishing frequency is reduced; and the whole device is simple in structure, convenient to maintain and good in fishing effect.

The invention discloses a domestic wastewater sedimentation device, and belongs to the field of water processing devices. The domestic wastewater sedimentation device comprises a first-stage sedimentation tank, a second-stage sedimentation tank, a water inlet pipe, a middle connecting pipe and a water outlet pipe. An above-water salvage mechanism and an underwater salvage mechanism are arranged inthe first-stage sedimentation tank. The above-water salvage mechanism comprises a longitudinally-inclining first conveying belt and a scooping plate arranged on the surface the first conveying belt.The first conveying belt and the scooping plate are each provided with mesh. A first torsional spring is arranged on the side, connected with the first conveying belt, of the scooping plate. A floating slag collecting plate is arranged at the upper end of the side, connected with the water inlet pipe, of the first-stage sedimentation tank. The underwater salvage mechanism comprises a transversely-horizontal second conveying belt and an adsorption plate arranged on the surface of the second conveying belt. The adsorption plate is provided with adsorption holes with aperture smaller than that ofthe mesh in the scooping plate. The aperture of the adsorption holes is gradually decreased from the sides, facing the water inlet pipe, of the adsorption holes to the opposite side. The above-waterfloating slag and underwater suspended solid particles can be removed first, sedimentation is then conducted, the sedimentation efficiency is high, the sedimentation effect is good, and the application value is improved.