CN-117127708-B - Drainage pipeline quicksand dredging device and method

CN117127708BCN 117127708 BCN117127708 BCN 117127708BCN-117127708-B

Abstract

The invention discloses a dredging device and a dredging method for a drain pipeline, wherein the dredging device comprises a dredging machine head, the dredging machine head is rotatably connected to one end of a shell, a plurality of dredging tool bits are arranged on the dredging machine head, a plurality of groups of fixed elastic pieces are connected to the outer wall of the shell and are used for forming counter force after being abutted against the inner wall of a drain pipe, so that the shell is prevented from rotating along with the dredging machine head when the dredging machine head rotates, the dredging machine head is in transmission connection with a hydraulic motor, a plurality of groups of crawler conveyors are arranged in the shell, and the crawler conveyors are used for conveying the dredging close to the dredging machine head to one end far away from the dredging machine head. According to the dredging device and method for the drain pipeline, the dredging device is used for dredging to clean the flowing sand in the pipeline, the traction steel wire rope is used for controlling the dredging machine head to move forwards and backwards, if the dredging machine head has mechanical faults, the dredging machine head can be pulled back to an originating well, recovery of the device under extreme conditions is considered, and maintenance cost in the use process is low.

Inventors

ZHANG AIHONG
SHI SHUHUA
ZHANG YE
CHEN RONGRONG
HUANG RONGMIN
ZHANG HAO
OUYANG WEI
WANG XIAOMING
LIU KA
FAN WEIPING
CHENG HAOKE
DING RUI

Assignees

长江生态环保集团有限公司

Dates

Publication Date: 20260505
Application Date: 20230726

Claims (5)

1. The dredging device for the drain pipeline quicksand is characterized by comprising a dredging machine head, wherein the dredging machine head is rotatably connected to one end of a shell, and a channel for the quicksand to pass through and enter the shell is arranged between the dredging machine head and the shell; the dredging machine head is in transmission connection with a hydraulic motor, a plurality of groups of crawler conveyors are arranged in the shell, and the crawler conveyors are used for conveying the quicksand close to the dredging machine head to one end far away from the dredging machine head; the transporting mechanism comprises a haulage rope, a plurality of transporting hoppers are connected to the haulage rope at intervals, the haulage rope is connected with a winch, the transporting hoppers are umbrella-shaped, and the transporting hoppers are opened after loading quicksand; The haulage rope is connected in the shell through guide gears, the guide gears are respectively arranged at the front end and the rear end of the position where the transporting hopper loads the quicksand, the tooth space of the guide gears at the front end is larger than that of the guide gear teeth at the rear end, so that the transporting hopper is in a furled state after the empty transporting hopper passes through the guide gears at the front end, and meanwhile, the transporting hopper is in an opened state after the transporting hopper loads the quicksand passes through the guide gears at the rear end; the guide gear positioned at the front end and the guide gear positioned at the rear end are positioned on the same horizontal plane; one end of the fixed elastic sheet is hinged with the shell, the middle part of the fixed elastic sheet is connected with a hydraulic cylinder, and the hydraulic cylinder is hinged with the outer wall of the shell; The fixed elastic sheet is in a bending shape and bends towards a direction away from the shell.
2. The drain pipeline sediment removal device according to claim 1, wherein the crawler conveyors are arranged in four groups and are uniformly distributed in the shell.
3. The drain pipeline quicksand dredging device according to claim 1, wherein a hydraulic moment amplifier is arranged between the dredging machine head and the hydraulic motor.
4. The drainage pipeline quicksand dredging device according to claim 1, wherein a traction steel wire rope is arranged at the center of the dredging machine head.
5. A dredging method for drain pipe, characterized in that the dredging device for drain pipe is used according to any one of claims 1-4, and comprises the following steps: s1, connecting an originating well and a receiving well by using a threading device, and guiding a traction steel wire rope to pass through a pipeline; S2, enabling the quicksand dredging device to be positioned in a drain pipe, debugging a machine head, and testing whether the opening and closing states of a dredging tool bit, a crawler conveyor and a fixed elastic sheet are normal or not; s3, after debugging is completed, pulling the traction steel wire rope to enable the quicksand dredging device to move forwards along the drain pipe, opening the fixed elastic sheet when the front surface of the dredging machine head meets the quicksand layer, enabling the fixed elastic sheet to be tightly abutted against the inner wall of the drain pipe, and providing a reaction force for tunneling for the dredging machine head; s4, starting a dredging cutter head to rotate at a low speed, keeping high torque, cutting the quicksand onto a crawler conveyor, and keeping the quicksand in the dredging cutter head from depositing; S5, starting a winch, so that a haulage rope drives a quicksand conveying hopper to convey quicksand at the rear part of the machine head to a discharging platform at the inlet of the starting well; S6, after finishing the work of cleaning the sand of the working section, firstly loosening the fixed elastic sheet, and then dragging the machine head to the next working section by using the traction steel wire rope; S7, repeating the steps S4-S6 to finish the dredging of the quicksand on the drainage pipe section between the originating well and the receiving well.

Description

Drainage pipeline quicksand dredging device and method Technical Field The invention belongs to the technical field of pipeline dredging, and particularly relates to a dredging device and method for drain pipeline quicksand. Background The sewer is taken as an important infrastructure of a city, the scale of the sewer is continuously increased along with the expansion of urban population, sewage and household garbage (containing grease, scaling substances, winding substances and the like) discharged into the sewer every day, and ground sediment is taken along with rainwater, so that the sewer is deposited and blocked through annual accumulation. Some old sewer is more prominent because of the lower design standard at the beginning, and the phenomenon of siltation jam has seriously influenced the normal drainage function of sewer, because sewer dredging generally has the problem that the construction degree of difficulty is big, the security is poor, with high costs, and the sewer in some places can only abandon the reconstruction. At present, a relatively advanced high-pressure water jet propulsion type sewer dredging tool (commonly called a water mouse) can only dredge small-diameter sewer with the diameter below 500mm, and a few of ultrahigh-pressure water jet propulsion type dredging tools can only dredge small-diameter sewer with the diameter of 1000mm at maximum. For large-diameter sewer, manual dredging can be generally only adopted. The dredging mode has the advantages of high labor intensity, low efficiency, harmful gas in the sewer and high risk of workers operating in the limited space. When the pipeline has serious defects such as damage and leakage, a large amount of quicksand can enter the sewage pipeline, and the overflow capacity of the pipeline is seriously affected. The drift sand density is big, mobility is low, can't adopt the mediation car to dredge the silt mediation, and traditional manual work is gone into the well and is clearly drawn inefficiency and have great potential safety hazard. The application number is CN 201410244030.7's chinese patent application, has disclosed a pipeline dredging method and pipeline dredging robot, and this robot structure is comparatively complicated, and the walking is inflexible, and application scope is little, and dredging process needs to reciprocate, only need pass in and out the pipeline many times can clear up the quicksand in the pipeline, this construction cost that has increased. The Chinese patent application with the publication number of CN 105604178B discloses an automatic cleaning device, which comprises a sand-discharging propeller and a sand stirring device arranged at the front end of the sand-discharging propeller, wherein the sand-discharging propeller comprises a main shaft and sand-pushing fins arranged on the outer peripheral surface of the main shaft, and the sand-pushing fins are spirally wound on the outer peripheral surface of the main shaft along the axial direction of the main shaft and form a sand storage gap between the adjacent sand-pushing fins. According to the embodiment of the invention, the outer circumferential surface of the main shaft of the sand-discharging propeller is provided with the continuous sand-pushing fins, the adjacent sand-pushing fins form a sand storage gap, the sand-discharging propeller can enter the channel and rotate, the sand-pushing fins rotate to form a sand-discharging channel, and the sand stirring device arranged at the front end of the sand-discharging propeller can enable sand and stones in the channel to be discharged out of the channel along the sand-pushing fins on the sand-discharging propeller, so that sand and stones deposited on the communication channel can be cleaned out, and the blockage of a sewer is prevented. The cleaning of the quicksand in the drainage pipeline is realized, but the automatic conveying of the quicksand collected from the drainage pipeline to the ground still cannot be realized, so that the whole device is required to be installed between the ground and the pipeline in a reciprocating manner, the cleaning efficiency of the pipeline is low, and the construction cost is high. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides a device and a method for dredging the quicksand of a drainage pipeline so as to improve the cleaning efficiency of the quicksand in the drainage pipeline. The invention provides a dredging device for drain pipeline quicksand, which comprises a dredging machine head, wherein the dredging machine head is rotatably connected to one end of a shell, a channel for quicksand to pass through and enter the shell is arranged between the dredging machine head and the shell, a plurality of dredging cutter heads are arranged on the dredging machine head, a plurality of groups of fixed elastic pieces are connected to the outer wall of the shell and are used for forming counter force after being abutted ag