361 results about "Sanitary sewer" patented technology

The invention provides a tandem catalytic ozonation sewage treatment system, and relates to the technical field of sewage treatment. The device comprises a treatment assembly, an aeration assembly, a middle assembly, an injection assembly, a lifting assembly, a knocking assembly and an extrusion assembly, the treatment assembly comprises a lower shell, the upper part of the lower shell is detachably connected with an upper shell, the lower part of the upper shell is fixedly connected with a partition plate, the lower shell is provided with a sewage pipeline, and the upper part of the lower shell is fixedly connected with the partition plate. A barometer is mounted at the upper part of the lower shell; the aeration assembly is arranged at the bottom of the lower shell and is used for injecting ozone gas; the middle assembly is arranged on the outer side of the treatment assembly and is used for temporarily storing the high-pressure ozone. By arranging the lifting assembly and the knocking assembly, the knocking assembly can be driven by ozone pressure to knock the aeration disc, so that impurities attached to the aeration disc are vibrated away and taken away by ozone gas, and the aeration disc is prevented from being blocked due to impurity accumulation.

The invention relates to the technical field of flow measurement, in particular to a sewage pipeline flow measurement device and method based on dynamic image analysis, and the device comprises a rod body, a control system, a particle release module, a track acquisition module and an image and motion analysis module; the control system is arranged at the top end of the rod body; the track acquisition modules are arranged at the bottom of the rod body; the particle release module is used for storing fluorescent particles and releasing the fluorescent particles into the sewage pipeline to be detected under the control of the control system; the track acquisition module is used for shooting the interior of the sewage pipeline to be detected to obtain an image containing fluorescent particles; the image and motion analysis module is used for analyzing the motion characteristics of the fluorescent particles released in the sewage pipeline to be detected so as to determine the flow of the sewage pipeline to be detected. Thus, the bottom of the device is placed in the sewage pipeline to be detected, the motion characteristics of the fluorescent particles are determined by shooting the tracks of the fluorescent particles, the flow of the sewage pipeline is determined, and the device is efficient, accurate and low in operation difficulty.

The invention discloses plastic pipeline particles prepared from waste incineration fly ash and a preparation method of the plastic pipeline particles. The particles are prepared from the following raw materials in parts by weight: 5-25 parts of PE, 20-100 parts of superfine calcium carbonate, 1-5 parts of needle-like wollastonite, 1-5 parts of chopped carbon fibers, 1-15 parts of rutile type titanium dioxide, 10-75 parts of waste incineration fly ash, 1-20 parts of paraffin, 0.2-5 parts of a coupling agent and 0.5-10 parts of a dispersing agent. The preparation method comprises the following steps: 1, cleaning and airing the fly ash, and crushing and grinding the fly ash into 600-1250-mesh powder P; 2, mixing the powder P with inorganic fillers such as superfine calcium carbonate at a high speed of 100-130 DEG C to obtain a composite filler M; 3, mixing and modifying the filler M with a dispersing agent and a coupling agent at a high speed to obtain modified powder MP; 4, MP, PE and paraffin are mixed and plasticized at a high speed, and single-screw extrusion granulation is performed. The particles achieve fly ash recycling and are excellent in processability, the prepared PE pipeline is high in strength, resistant to corrosion and long in service life and can be used as an industrial or municipal sewage pipeline, and the preparation method is convenient, fast and efficient.

The invention discloses a sewage pipeline flow detection device, and relates to the field of flow detection. The sewage pipeline flow detection device comprises a pipe section type flow meter, the pipe section type flow meter is connected with a sewage pipeline through a flange, an outer clamping type flow meter is installed on the outer side of the sewage pipeline, the pipe section type flow meter comprises a pipe section shell and a control terminal, two sensor shells are arranged on the outer side of the pipe section shell, and the control terminal is connected with the two sensor shells. The interiors of the two sensor shells are each provided with an intrusive sensor, the ends of the intrusive sensors extend towards the interior of the pipe section shell, and the intrusive sensors are connected with an outer wall cleaning unit and an end face cleaning unit. According to the sewage pipeline flow detection device, when the control terminal detects that the detection difference value of the pipe section type flow meter and the outer clamping type flow meter exceeds the preset threshold value, the outer wall and the end face of the intrusive sensor are cleaned, and the detection precision is recovered.

The utility model discloses a sewage pipeline capable of preventing clogging at a bending position, and particularly relates to the technical field of clogging prevention devices, the sewage pipeline comprises a first water pipe, one end of the first water pipe is fixedly connected with a bent pipe, one end of the bent pipe is fixedly connected with a second water pipe, a cleaning mechanism is arranged in the bent pipe, and a water spraying assembly is arranged in the cleaning mechanism. And the cleaning mechanism comprises a rotating shell, rotating columns are fixedly connected to the two sides of the rotating shell, one end of each rotating column is rotationally connected with the bent pipe, and a plurality of scraping plates are fixedly connected to the surface of the rotating shell. According to the utility model, impurities deposited on the elbow pipe can be dredged regardless of the water flow, the pipe wall can be effectively scraped, sludge and solid impurities such as fibers and hairs attached to the pipe wall can be scraped off, the scraper and the interior of the pipeline body can be scoured, and the sludge scraped off by the scraper can be timely flushed away; and the device goes deep into gaps and corners which are difficult to touch by the scraper blade, so that fine particles and viscous substances are dispersed.

The utility model relates to water purification technical field discloses a big flow ultrafiltration membrane water purifier with self -cleaning and backwash function, including prefilter and two or more than two parallel connection's ultrafiltration membrane water purifier, water purifier purifying water export is equipped with the three ways, and the three ways are connected with the loose joint and become two water purifier's purifying water cavity intercommunication, and the water inlet and sewage water mouth of water purifier are equipped with control valve and three ways, and the three ways are connected with the loose joint and become water inlet channel and sewage water channel respectively, through closing or opening corresponding water inlet control valve and sewage water control valve, the purifying water of water purifier automatic backwash is carried out to the filter core of another water purifier, and backwash is crossed and is carried out between two or more than two water purifiers, and sewage water pipeline communication is often used water's wash vegetables pool, mop pool, such as toilet equipment, and the function of backwash and sewage water at any time is superimposed, makes filter core more clean, if maintaining properly, the service life of water purifier filter core reaches at least ten years or more.

The invention relates to the technical field of municipal drainage pipelines, in particular to a sewage pipeline structure and a maintenance method.The sewage pipeline structure comprises a pipe body, a first connecting end, a second connecting end, an elastic sealing ring and a locking mechanism, the elastic sealing ring is arranged in an annular groove of the connecting end and provided with a corrugated protrusion and a flow guide groove, and the locking mechanism comprises a locking ring and a locking sleeve; a guide structure, an elastic buckle array and a pressure color-changing anti-skid gasket are arranged; a guide plate with a pressure sensor is arranged in the pipe body, and a reinforcing rib with an access hole is arranged on the outer wall. Reliable sealing, operation state monitoring and convenient overhauling can be achieved, and the safety and maintenance efficiency of a sewage pipeline system are effectively improved.

The invention relates to a device for the rehabilitation of the outlet area (20) of an inlet pipe (2) opening into a walkable sewer pipe (1), comprising an annular flexible pressure plate (5) for applying to an inner surface (10) of the sewer pipe (1) surrounding the outlet area (20) of the inlet pipe (2) and a sealing bladder (4) intended for insertion into the inlet pipe (2) and temporarily expandable, which has a tensioning device at an end (40) not pointing into the inlet pipe (2), by means of which a pressing force can be generated on the pressure plate (5) in the direction of the inner surface (10) of the sewer pipe (1), wherein the pressure plate (5) has at least one injection opening (52) extending through the pressure plate for a filling material.

The utility model discloses a kind of municipal rainwater and sewage pipeline anti-seepage structures, it includes: outer sleeve, the outer sleeve outside fixedly connected two tenons, two The tenon is symmetrically arranged in the horizontal two sides of outer sleeve, the inner sleeve of the outer sleeve is sleeved, the rubber pad is fixedly connected in the outer sleeve, three valves are fixedly connected in the rubber pad, the outer sleeve outside is sleeved first sealing ring, the left of the first sealing ring is provided with third sealing ring, the inner surface of the third sealing ring is fixedly connected with the outer sleeve, the sealing property of pipeline connection is improved by three valves in the outer sleeve and two sealing rings outside the inner sleeve, and two tenons outside the outer sleeve facilitate the loading and unloading of inner sleeve and outer sleeve.

This invention relates to the field of sewage pipeline technology and discloses a support device for the installation of municipal sewage pipelines. It includes several adjustable support mechanisms that allow for the tilting and docking of plug-in cement pipes. A hoisting mechanism is provided on the main support frame, and an angle adjustment mechanism located inside the main support frame is connected to the end of the hoisting mechanism. The angle adjustment mechanism is equipped with a fixing mechanism that can secure the plug-in cement pipes. Compared with existing technologies, this invention has the advantage that by setting several adjustable support mechanisms to assist in the installation and docking of plug-in cement pipes, the plug-in cement pipes can be tilted to a certain angle under the drive of the angle adjustment mechanism. Furthermore, during installation and docking, the plug-in cement pipes are tilted and docked, and after docking, they are simultaneously placed in a predetermined position. This solves the problem in existing technologies where it is impossible to directly install plug-in cement pipes of the original size, and also eliminates the need for building materials for observation wells.

The utility model relates to the technical field of sewage treatment, and discloses an overwater sewage pipeline system which comprises a precast pile, a packaging block, a sewage main pipe, a plurality of sewage branch pipes and a plurality of outdoor pipes. A through hole is formed in the encapsulation block, the encapsulation block is arranged on the upper end face of the precast pile through a leveling layer, and the leveling layer is used for adjusting the elevation of the encapsulation block; the sewage main pipe penetrates through the through hole, a buffer gasket is arranged between the sewage main pipe and the through hole, and the sewage main pipe is obliquely arranged; the sewage branch pipe is communicated with the sewage main pipe through a maintenance tee joint; one end of the outdoor pipe is used for receiving sewage discharged by the village, and the other end of the outdoor pipe is communicated with the sewage branch pipe. In the using process of the sewage pipeline system, under the conditions that the precast pile sinks and the sewage main pipe is subjected to buoyancy, the buffering gasket plays a buffering role, and the risks of deformation and damage of the sewage main pipe can be reduced.

The utility model relates to box culvert technical field especially a kind of flow box culvert reconstruction flow guide structure, including box culvert roof and box culvert floor, the entrance of box culvert floor top is built with water retaining weir, water retaining weir's front side is placed with submersible pump, the water outlet of submersible pump is equipped with flow guide pipe, the right side of box culvert floor top is built with water retaining wall, water retaining wall's right side and box culvert floor between are equipped with water pipe support, the side wall of box culvert roof is equipped with angle steel support, the top of angle steel support is laid with ventilation hose. The water outlet of submersible pump is connected into flow guide pipe and along water pipe support laying is drained, and the right side of newly-built sewage pipeline away from box culvert is built to form box culvert internal flow guide channel drainage, according to different needs using upper drainage tube and lower drainage tube to drain, orderly drainage is taken in different drainage mode, improve drainage efficiency, ensure that construction area is dry.

The invention belongs to the technical field of municipal sewage treatment and environmental pollution control, and particularly relates to a system and method for controlling harmful gas in a sewage pipeline based on nitrate coupled waste iron ore. According to the technical scheme, the system for controlling the harmful gas in the sewage pipeline based on coupling of the nitrate and the waste iron ore comprises a nitrate storage tank, a waste iron ore powder storage tank, a mixer and an adding device, the nitrate storage tank and the waste iron ore powder storage tank are connected with the mixer through pipelines, and the mixer is used for mixing chemicals; the mixer is used for adding chemicals into the sewage pipeline through an adding device. According to the system and the method for controlling the harmful gas in the sewage pipeline based on the coupling of the nitrate and the waste iron ore, through the coupling effect of the nitrate and the waste iron ore, the activity of anaerobic harmful flora is inhibited, the generation of H2S and CH4 is reduced, and the cyclic utilization of waste resources is realized.

The present invention provides a sewage precise dosing mixing treatment device and a control method, the sewage precise dosing mixing treatment device comprises: a dosing module for adding a medicament into a sewage pipeline; the on-line detection module comprises a first on-line detection module and a second on-line detection module, and the first on-line detection module is arranged at the upstream of the dosing module and is used for detecting water quality parameters of the sewage in real time; the second online detection module is arranged at the downstream of the dosing module and is used for detecting water quality parameters of the sewage after dosing in real time; the mixing strengthening module is arranged between the chemical adding module and the second online detection module and is used for promoting mixing of the chemical and the sewage; the circulation control module is in communication connection with the online detection module and is used for judging a treatment result according to the water quality parameters and enabling the sewage to flow back to the upstream of the dosing module for retreatment when the result does not reach the standard; the device is high in mixing efficiency and dosing precision, has a closed-loop control mechanism, and is good in equipment maintainability.

The utility model belongs to the technical field of building drainage, and particularly relates to a high-rise public building drainage structure comprising hotel functional areas. The hotel functional area comprises a functional area and a guest room area, the guest room area is provided with floors of a plurality of guest rooms, a toilet of each guest room is provided with a drainage pipeline, the drainage pipelines of all the guest rooms converge at the lowest equipment conversion floor of the hotel guest room area to form at least three convergence areas, and each convergence area is connected with a sewage pipeline; a drainage pipeline of a toilet of a guest room is connected to the drainage transverse pipe, and an annular ventilation pipe is arranged between two sanitary ware of a drainage point of each toilet of the guest room on the floor. And the three confluence areas are provided with a common breather pipe. The utility model has the advantages that: 1, the water consumption of the kitchen and the water consumption of the toilet are reasonably superposed, so that the drainage requirement can be met in the water consumption peak period; and 2, the drainage effect of the drainage transverse pipe is effectively ensured, the blockage problem is avoided, and the smooth operation of the whole drainage system is facilitated.

The present application relates to the technical field of sewage treatment, and particularly relates to a method for evaluating purification efficiency of urban sewage pipeline. Based on the topological structure and historical operation data of the target sewage pipeline network, the key internal nodes are selected and the monitoring points are arranged through in-situ process sensitivity sorting; the concentration data of the reference water quality indexes of all water quality monitoring nodes and the hydraulic flow velocity data between adjacent nodes are synchronously collected within a preset evaluation period; based on the above data and in combination with the geometric parameters of the pipeline, the purification efficiency of each pipe section is characterized and quantified to generate a pipe section purification characteristic data table; the dynamic simulation and spatial interpolation of the internal purification process of the pipeline network are performed to generate a dynamic quantification atlas; based on the atlas and the characteristic data table, the pipe section efficiency is evaluated, and the abnormal cause analysis is performed in association with the sensitivity characteristics of the key internal nodes. The multi-dimensional dynamic correlation of the in-situ purification process inside the pipeline network is described and visualized, and the fine and intelligent level of the pipeline network management is improved.

The invention discloses a complex underground pipeline raining sewage pipeline replacement construction method which comprises the following steps that existing municipal wells are used as operation space, and to-be-replaced pipeline sections located between the existing municipal wells are demounted in a segmented mode; after the old pipeline with a certain length is dismantled every time, an annular supporting steel plate is installed at the position of the section so as to support the soil body exposed after dismantling; and repeating the step of dismounting and mounting the annular supporting steel plate in sections until the to-be-replaced pipeline section is completely dismounted and supported by the annular supporting steel plate.

The utility model provides a device for dredging a sewage pipe, which comprises a second switching part, the input end of the second switching part is externally connected with a high-pressure water pump through a pipeline, the second switching part is provided with a first output end and a second output end, the first output end is connected with a first connecting pipe, the second output end is connected with a second connecting pipe, and the second connecting pipe is connected with a second connecting pipe. The other end of the first connecting pipe is connected with a first through connection part, the first through connection part is connected with a water spraying head, the other end of the second connecting pipe is connected with an operation handle, and the first connecting pipe is provided with moving wheels. The device is small in size and can be applied to a narrow space.

The utility model relates to the technical field of pipeline dredging equipment, and discloses a sewage pipeline dredging device which comprises a blow-off pipeline, a fixed cylinder is arranged in the blow-off pipeline and arranged in the middle of the blow-off pipeline through a moving mechanism, and a washing mechanism is arranged in the middle of the fixed cylinder. The through groove is formed in the middle of the fixing cylinder, the lower middle portion of the supporting rod is rotationally connected to the left and right ends of the through groove, the middle of the roller is installed at the upper end of the supporting rod, and the left and right ends of the parallel rod are rotationally connected to the lower end of the supporting rod. According to the sewage pipeline dredging device, the parallel rod is pushed and pulled through the pull rod, so that the inclination angle of the supporting rod is changed, the sewage pipeline dredging device is further suitable for sewage pipelines of different sizes, a water pump is driven, water washes the impeller through conveying of a hose and a straight pipe and is sprayed out through a hole of the spray head, and the impeller drives the spray head to rotate; therefore, the sewage pipeline is dredged in all directions, and the dredging effect is improved.

A wastewater pipe inspection device (1) comprising two suspension members (11, 11') rotatably mounted on opposite sides of the main body, each suspension member (11, 11') carrying at least one front wheel (10a, 10c) and one rear wheel (10b, 10d) on the same side of said device (1), and said suspension members (11, 11') being coupled such that the rotation of one suspension member (11) in one direction of rotation causes the other suspension member (11') to rotate in the opposite direction. Figure 1

The present invention belongs to the field of municipal engineering technology, and specifically discloses a construction method and diversion modification structure for underground rainwater and sewage pipe diversion. It includes: temporary drainage using a temporary diversion pipe; blocking the existing pipe III, supporting the trench foundation pit and excavating the foundation pit, dewatering the foundation pit, constructing a new pipe concrete foundation on the designed base of the foundation pit, and laying a new rainwater and sewage pipe on the new pipe concrete foundation; cutting the existing rainwater and sewage inspection well III, reinforcing the foundation of the new rainwater and sewage inspection well V, casting the new rainwater and sewage inspection well V, and waterproofing the interface between the existing pipe III and the new rainwater and sewage inspection well V; backfilling and compacting the foundation pit in layers to the designed top surface, removing the foundation pit support structure, removing the blocking device, and removing the temporary diversion pipe. The present invention ensures the drainage circulation of the existing rainwater and sewage pipes during the construction of the new rainwater and sewage pipes, and realizes the normal operation of the rainwater and sewage pipeline system.

A device for cooperatively treating aquaculture tail water by algae and bacteria is provided, including an aquaculture part; the aquaculture part is communicated with a sewage discharge part, and the sewage discharge part is communicated with a tail water treatment part, and the tail water treatment part is communicated with the aquaculture part; the sewage discharge part includes a sewage pipe communicated with the aquaculture part, where one end of the sewage pipe away from the aquaculture part is communicated with the tail water treatment part, and a sewage pump is arranged on the sewage pipe; the tail water treatment part includes a second shell, a bottom end of the second shell is communicated with the sewage pipe, a top end of a side wall of the second shell is communicated with the aquaculture part, several guide plates are arranged in the second shell.

In a grit chamber (1) designed to be installed in the flow path between a downpipe and a stormwater or combined sewer, comprising a watertight housing (2), a connection opening in the housing (2) designated as an inlet (14) which connects to the downpipe in use, a connection opening in the housing (2) designated as an outlet (10) which connects to the sewer in use and is located lower than the inlet (14), a sludge chamber (22) which is located lower than the outlet (10) and has a bottom (3), and a dip tube (11) with an upper inlet opening (16) which is located lower than the inlet (14) and higher than the outlet (10), and with a lower outlet opening (15) which is located lower than the outlet (10) and above the bottom (3) of the sludge chamber (22), wherein the dip tube (11) is tightly connected to the housing (2) at the top,and wherein the immersion tube (11) is designed in such a way as to create a flow path for rainwater from the sludge chamber (22) to the outlet (10) both inside the housing (2) and outside the immersion tube (11), it is proposed that the housing (2) has an upper part (5) having the inlet (14) and a lower part (6) having the outlet (10), wherein the upper part (5) and the lower part (6) are rotatable relative to each other about an upright axis of rotation.

The utility model discloses an anti-leakage connecting structure for urban sewage pipelines, which belongs to the field of pipeline connection protection and comprises rubber parts arranged on adjacent pipelines, outer rubber rings and inner rubber rings which are respectively positioned on the outer sides and the inner sides of the pipelines are arranged on the rubber parts, outer recesses are formed in the outer rubber rings, and the end surfaces of the inner rubber rings are raised and face the axes of the pipelines. And the end part of the inner rubber ring is movably provided with a protective piece which is circumferentially arranged. By means of the I-shaped rubber part, the outer rubber ring and the inner rubber ring conduct end opening hoop type closed butt joint on a pipeline, the protruding arc-shaped inner rubber ring can have the thickening and anti-scratching effect, the protection part is matched to prevent collision of sharp objects, the overall protection capacity of the rubber part is improved, and the service life of the pipeline is prolonged. And the outer recess can play a role in resisting pressure on soil buried outside the pipeline, so that when the soil pressure acts on the outer rubber ring, the connecting and sealing capability of the outer rubber ring on the adjacent pipeline is improved, and excellent sealing and leakage-proof effects are kept inside and outside the pipeline.

This invention discloses a method for connecting a new pipeline to an old manhole without interrupting the flow of wastewater in an existing pipeline. The method includes the following steps: S1, constructing a working well around the old manhole; S2, constructing the new pipeline by pipe jacking; S3, providing a partition plate and installing it inside the old manhole to divide it into a dry working area and a flow area; S4, breaking down the outer wall of the old manhole to connect the new pipeline to the dry working area; S5, temporarily sealing the upstream / downstream old pipeline and removing the partition plate; S6, permanently sealing the upstream / downstream old pipeline after the new pipeline is connected. This invention, by using a partition plate inside the old manhole to divide it into a dry working area and a flow area, significantly reduces the risk of upstream sewage backflow and waterlogging in the old sewage pipeline.

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 invention relates to the technical field of dredging for blocked sewage pipelines, and discloses a dredging method for blocked sewage pipelines. The pipe diameter, the blocking length and the circumferential thickness are sequentially and accurately measured, and the volume is calculated through numerical integration; calibrating the pH sensor, and preparing a strong acid and strong alkali reagent; carrying out experiment calibration on dissolution kinetic parameters and constructing a model; establishing a pH oscillation dredging model to determine the optimal frequency and duration; a multi-stage acid-base flow and proportion injection plan is made, and accurate injection is monitored in real time in combination with discrete pump control; after chemical cleaning, clean water is used for flushing and residual volume is measured, and automatic mechanical assistance or manual treatment is carried out during overrun. According to the scheme, blockages are quantified, and sensing and dispensing precision is guaranteed; the passivation layer is broken through dynamic prediction and oscillation injection, and the dissolution efficiency is improved; closed-loop verification and remediation ensure thorough dredging, the dosage of chemical agents and secondary pollution are remarkably reduced, and the operation reliability and maintenance convenience of the pipeline are improved.

The invention relates to the technical field of intelligent detection, and discloses a buried sewage pipeline scale layer intelligent detection system and method based on the Internet of Things, and the method comprises the steps: collecting the optical albedo and acoustic backscattering data of the section of a target pipeline at each annular angle; a cross-correlation value and time delay of the optical deviation value and the acoustic deviation value are calculated in a post-event time window, and an optical recovery time constant and an acoustic recovery time constant are obtained through fitting of an exponential decay model; the optical positive deviation area and the acoustic negative deviation area are determined, the cross-correlation value and the time delay are combined, then strength parameters are obtained through calculation, and circumferential connectivity sorting is carried out according to the strength parameters to locate candidate scale layer girdles; obtaining a material dominant data set corresponding to the deviation cause material dominant through combined screening; and in response to the material dominant data set, splicing the candidate scale layer annular belt of each section along the axial direction of the pipeline according to the strength parameters to obtain a scale layer belt center track.

The present invention provides a long-distance rope threading tool and method for drainpipes. The long-distance rope threading tool comprises a main pole, with an umbrella-shaped force-applying mechanism at one end of the main pole and the other end connected to a traction rope. The umbrella-shaped force-applying mechanism comprises a plurality of ribs connected to the main pole via a support pole. The outer sides of the ribs cover the umbrella canopy, and the rear ends of the ribs are connected to the main pole via a connecting rope. The tool and rope threading method can achieve long-distance rope threading in sewage pipes with high efficiency and low cost.