CN110792159A - Desilting and deslagging method for gravity flow sewage pipeline - Google Patents

Desilting and deslagging method for gravity flow sewage pipeline Download PDF

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Publication number
CN110792159A
CN110792159A CN201910989486.9A CN201910989486A CN110792159A CN 110792159 A CN110792159 A CN 110792159A CN 201910989486 A CN201910989486 A CN 201910989486A CN 110792159 A CN110792159 A CN 110792159A
Authority
CN
China
Prior art keywords
desilting
drainage pipeline
chain
frame
slag remover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910989486.9A
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Chinese (zh)
Inventor
崔贺
董磊
张欣
杨一烽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Municipal Engineering Design Insitute Group Co Ltd
Original Assignee
Shanghai Municipal Engineering Design Insitute Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Municipal Engineering Design Insitute Group Co Ltd filed Critical Shanghai Municipal Engineering Design Insitute Group Co Ltd
Priority to CN201910989486.9A priority Critical patent/CN110792159A/en
Publication of CN110792159A publication Critical patent/CN110792159A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F9/00Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F7/00Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10Wheeled apparatus for emptying sewers or cesspools
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F9/00Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/002Cleaning sewer pipes by mechanical means

Abstract

The invention provides a desilting and deslagging method for a gravity flow sewage pipeline, which is characterized in that chain type guide rails are arranged in an inspection well and a drainage pipeline, a desilting and deslagging device is nested in a suspension type support, the suspension type support is suspended on the chain type guide rails and moves in the drainage pipeline along the chain type guide rails, the desilting and deslagging device is used for in-situ desilting and deslagging of the drainage pipeline, and sludge collected by the desilting and deslagging device is transported on the ground outside the inspection well through a sludge pumping and collecting vehicle. The invention fully utilizes the inner space of the inspection well and the drainage pipeline, realizes the transportation and the operation of the desilting slag remover in the drainage pipeline through the exquisite design of the chain type guide rail and the suspension type bracket, and realizes the in-situ desilting and dredging of the drainage pipeline through the desilting slag remover integrating the slag hopper, the filter screen and the mud hopper. Compared with the prior art, the invention has the outstanding characteristics of strong applicability, easy implementation, various functions, flexible operation, obvious effect and the like.

Description

Desilting and deslagging method for gravity flow sewage pipeline
Technical Field
The invention belongs to the technical field of municipal drainage, and relates to a desilting and deslagging method for a gravity flow sewage pipeline.
Background
The drainage pipeline is an engineering facility for collecting and conveying urban domestic sewage, industrial wastewater and rainwater. In recent years, with the acceleration of the urbanization process of China, the number and scale of the construction of drainage pipelines are increased year by year. Such as: in the thirteen-five period, the offshore city has the matched drainage pipeline of about 100 km in the central urban area and the newly-built drainage pipeline of about 310 km in the suburban area on the basis of the drainage pipeline with the total built length of about 9530 km. Increasingly perfect drainage pipeline systems provide convenience for conveying various sewage and rainwater in cities and towns, however, along with the gradual bulkiness of the drainage pipeline systems, the problems of water pollution, secondary disasters and the like of drainage pipelines are gradually obvious.
The sewage conveyed in the gravity flow sewage pipeline contains higher concentration of suspended particles, and the sludge is easy to precipitate in a form in a pipe section with larger pipe diameter and slower flow velocity, so that the pipeline is blocked. In addition, for the combined sewage pipeline, the flow velocity of sewage in the sewage pipeline with larger pipe diameter is slower in dry weather, and suspended particles in the sewage are easy to precipitate to form sludge; in rainy days, due to the fact that the water quantity is increased sharply, sludge in the pipeline is flushed out, and therefore the problems of black and odorous rivers and lakes are frequently caused.
At present, aiming at the situation that dredging of a gravity flow sewage pipeline is only limited to the situation that the pipe diameter is small, particulate matters and sludge in a drainage pipeline are generally cleaned out of the pipeline or pushed to the pipeline with the larger pipe diameter by adopting methods such as a high-pressure water gun, manual traction or push-pull and the like. However, no effective desilting and deslagging technology exists for the drainage pipeline with a large pipe diameter. Therefore, a new technology capable of effectively removing scum, suspended particles and sludge in the drainage pipeline is urgently needed in the market.
Disclosure of Invention
The invention aims to realize dredging and deslagging of the drainage pipeline by implementing proper engineering reconstruction on the drainage pipeline and an inspection well, fully utilizing the internal space of the drainage pipeline, conveying a dredging deslagging device into the drainage pipeline through the design of a chain type guide rail and a suspension type bracket, and clearing sludge scraped by the dredging deslagging device through a sludge pumping and collecting vehicle.
In order to achieve the above object, the present invention provides a method for dredging and deslagging a gravity flow sewage pipeline, which is characterized in that the method comprises:
and (3) an installation stage:
the method comprises the following steps: emptying sewage in a drainage pipeline in advance so that an operator can conveniently enter an inspection well for operation;
step two: a chain type guide rail is arranged in the detection well, and comprises a driving chain wheel, a driven pulley and a chain matched with the driving chain wheel and the driven pulley;
step three: fixing a single or a plurality of suspension brackets on the chain;
step four: the desilting slag remover is arranged on a suspension type bracket, and a lifting frame on the suspension type bracket is adjusted according to the pipe diameter and the water level of the drainage pipeline, so that a slag hopper and a mud hopper of the desilting slag remover are convenient for removing scum and sludge in the drainage pipeline;
step five: the motor drives the driving chain wheel to rotate, and then the chain is driven, so that the suspension type bracket provided with the desilting slag remover is conveyed into the drainage pipeline;
step six: the sludge pumping and collecting vehicle is positioned on the ground outside the inspection well;
step seven: water normally enters the drainage pipeline;
and (3) an operation stage:
the method comprises the following steps: the driving chain wheel is driven by the motor to rotate, and then the chain is driven, so that the suspension type bracket is conveyed into the drainage pipeline, and the moving direction of the suspension type bracket in the drainage pipeline and the opening directions of the slag hopper and the mud hopper of the desilting slag remover are opposite to the flowing direction of sewage in the drainage pipeline;
step two: in the relative movement process of the desilting slag remover and the sewage, the slag hopper can skim the scum on the upper layer of the sewage, the filter screen can filter out the suspended particles on the middle layer of the sewage, and the mud hopper can skim the silt on the lower layer of the sewage;
step three: the suspended bracket is conveyed out of the inspection well from the drainage pipeline through the continuous rotation of the motor, and scum, suspended particulate matters and sludge collected by the desilting slag remover are transferred to a sludge storage tank of the vehicle through a sludge pumping and collecting vehicle;
step four: keeping the motor to rotate continuously, so that the cleaned desilting slag remover is conveyed to the interior of the drainage pipeline again, and repeating the second step and the third step;
and (3) maintenance stage:
the method comprises the following steps: when the desilting slag remover is blocked or damaged, the driving chain wheel is reversely rotated by the motor, so that the desilting slag remover to be repaired is conveyed out to the top of the inspection well along with the chain;
step two: the desilting slag remover is detached from the suspension type bracket, and the desilting slag remover is overhauled and cleaned;
step three: and the desilting slag remover is fixed on the suspension type support again, and the driving chain wheel is rotated through the motor, so that the overhauled desilting slag remover is conveyed into the drainage pipeline along with the chain, and then the operation stage is carried out from the first step to the fourth step.
Furthermore, the chain type guide rail comprises a bearing frame, the bearing frame is provided with a driving chain wheel, a driven pulley and a chain matched with the driving chain wheel, a motor is connected with the driving chain wheel and used for driving the driving chain wheel to rotate so as to drive the chain to move, the driven pulley is provided with a wheel groove, the chain groove of the chain is meshed with the wheel tooth of the driving chain wheel, and the outer side of the chain is clamped with the wheel groove of the driven pulley;
further, the chain type guide rail is installed in the following manner: install bearing frame's partly and drive sprocket in the top of detecting the well, fixed node, frame base and driven pulley then install in detecting the well for the chain is the single strand mouth shape structure.
Furthermore, the bearing frame and the side wall of the inspection well are provided with fixing nodes, the fixing nodes are the connecting points of the bearing frame and the side wall of the inspection well, and the connecting mode is welding, bonding or expansion screw fixing; the bottom of the bearing frame is provided with a frame base, the frame base is arranged at the bottom of the inspection well, and the bottom surface of the frame base is matched with the bottom surface of the inspection well.
Further, the driving chain wheel is positioned at the top of the bearing frame, and the driven pulley is positioned at the bottom of the bearing frame; the pitch of the driving chain wheel is 10-15 cm, and the tooth thickness is 7-9 cm; the width of a wheel groove of the driven pulley is 5-8 cm, and the depth of the wheel groove is 6-10 cm; the wheel surfaces of the driving chain wheel and the driven pulley and the axis of the drainage pipeline are located on the same plane.
Further, the suspension type bracket comprises a bracket body and a hook connected with the bracket body, and the hook penetrates through a pin shaft of the chain so as to connect the bracket body with the roller chain of the chain type guide rail; the frame body includes the upper frame, sets up the crane in upper frame lower part to and can follow the lower floor's frame that the crane reciprocated, and the sediment fill is installed to the upper frame, and lower floor's frame is installed the bagger, through the adjustable sediment fill of crane and the height of bagger in drainage pipe, make it be convenient for skim off the dross and shovel off silt.
Furthermore, a filter screen is arranged above a mud bucket of the desilting slag remover, and the plane where the filter screen is located is vertical to the axis of the drainage pipeline.
Furthermore, the sludge pumping and collecting vehicle comprises a sludge storage tank, a suction pump and a sludge pumping pipe, wherein the sludge pumping pipe is placed at the bottom of a downstream inspection well of the sludge crusher.
Furthermore, the number of the hooks is 2 or more, so that the axial displacement of the suspension type support in the drainage pipeline is limited.
Furthermore, the upper part of the hook is a hook-shaped object, the lower part of the hook is a connecting rod connected with the frame body, and the connecting rod needs to have a certain length so that the suspension type support can smoothly pass through a right-angle bend when moving along with the chain.
Further, suspension type support is including the two side telescopic links that are located the both sides of frame body, two side telescopic link are the elastic expansion link that the end has the universal wheel, flexible direction with drainage pipe's axis is perpendicular, is used for the restriction suspension type support lateral displacement in drainage pipe.
The invention fully utilizes the inner space of the inspection well and the drainage pipeline, realizes the transportation and operation of the desilting slag remover in the drainage pipeline through the exquisite design of the chain type guide rail and the suspension type bracket, and realizes the in-situ dredging and desilting of the drainage pipeline through the desilting slag remover integrating the slag hopper, the filter screen and the mud hopper.
Compared with the prior art in the same field, the invention has the remarkable characteristics that:
1. high applicability
The system aims at the in-situ purification problem of the drainage pipeline, and can adapt to drainage pipelines with different forms and pipe diameters through the reasonable layout of the chain type guide rail, the suspension type bracket, the desilting slag remover and the sludge pumping and collecting vehicle.
2. Is easy to implement
The existing space of the inspection well and the drainage pipeline is fully utilized to carry out simple transformation, the engineering measures are less, the investment scale is small, and the implementation and the popularization are easy.
3. Multiple functions
Through the integration of sediment fill, filter screen and mud fill in the desilting scummer to the cooperation is taken out the collection of silt collection mud car, dross, suspended particulate matter and silt in the drainage pipe sewage can be clear away simultaneously to the system.
4. The operation is flexible:
through the design of chain formula guide rail and suspension type support, can conveniently realize that the desilting scummer of system transports to the inside drainage pipe from the inspection shaft to and will desilting scummer from the inside outward transport of drainage pipe to the inspection shaft of drainage pipe during maintenance.
5. The effect is obvious
The system effectively cleans the drainage pipeline through the skimming effect of the slag hopper on the desilting slag remover, the filtering effect of the filter screen and the shoveling effect of the mud hopper, and has strong pertinence, obvious effect and easy popularization.
Drawings
FIG. 1 is a front view of the desilting and deslagging device for gravity flow sewer lines of the present invention.
Fig. 2 is a front view of the chain guide in the system of the present invention.
Fig. 3 is a front view of a suspended bracket of the system of the present invention with a sludge cleaner nested therein.
Fig. 4 is a side view of fig. 3.
The numbering meanings in FIGS. 1-4 are as follows:
1-chain type guide rail, 11-supporting frame, 12-fixed node, 13-frame base, 14-driving chain wheel, 15-driven pulley, 16-chain, 17-motor;
2-a suspension type support, 21-a hook, 22-a frame body, 23-a lifting frame and 24-a lateral expansion wheel;
3-a desilting slag remover, 31-a slag hopper, 32-a filter screen and 33-a mud hopper;
4-sludge pumping and collecting vehicle;
5-the ground;
6-detecting the well;
7-sewage;
8-drainage pipeline.
Detailed Description
The invention is further described in detail with reference to the following specific examples and the accompanying drawings. The procedures, conditions, experimental methods and the like for carrying out the present invention are general knowledge and common general knowledge in the art except for the contents specifically mentioned below, and the present invention is not particularly limited.
A desilting dross removal mechanism for gravity flow sewage conduit, its characterized in that installs chain formula guide rail 1 in inspection shaft 6 and drainage pipe 8, with desilting dross removal mechanism 3 nestification in suspension type support 2, suspension type support 2 hangs in chain formula guide rail 1 to along chain formula guide rail 1 removes in drainage pipe 8, is used for drainage pipe 8's normal position desilting slagging-off, the ground outside inspection shaft 6 is through taking out silt collection mud car 4 to carry the silt that desilting dross removal mechanism 3 collected.
Chain formula guide rail includes bearing frame 11, bearing frame installs drive sprocket 14, driven pulley 15 and rather than complex chain 16, drive sprocket 14 and driven pulley 15's wheel face all is located the coplanar with drainage pipe 8's axis, motor 17 with drive sprocket 14 links to each other for it is rotatory to drive sprocket, thereby drives chain 16 and removes, and the race is established to driven pulley 15, the race interlock of the sprocket of chain 16 and drive sprocket 15, the outside of chain 16 then with driven pulley 15's race block. The supporting frame and the side wall of the inspection well are provided with fixed nodes 12, the fixed nodes 12 are the connection points of the supporting frame 11 and the side wall of the inspection well 6, and the connection mode is welding, bonding or expansion screw fixation; the bottom of the bearing frame 11 is provided with a frame base 13, the frame base 13 is arranged at the bottom of the inspection well, and the bottom surface of the frame base 13 is inosculated with the bottom surface of the inspection well 6. The drive sprocket 14 is located at the top of the bolster frame 11 and the driven pulley 15 is located at the bottom of the bolster frame 11. The pitch of the driving chain wheel is 10-15 cm, and the tooth thickness is 7-9 cm; the width of a wheel groove of the driven pulley is 5-8 cm, and the depth of the wheel groove is 6-10 cm; the wheel surfaces of the driving chain wheel and the driven pulley and the axis of the drainage pipeline 8 are positioned on the same plane.
The chain type guide rail has two mounting modes:
firstly, a bearing frame 11, a fixed node 12, a frame base 13, a driving chain wheel 14 and a driven pulley 15 are all arranged in an inspection well 6, so that a chain is in a double-strand U-shaped structure;
secondly, a part of the supporting frame 11 and the driving sprocket 14 are installed above the inspection well 6, and the fixing node 12, the frame base 13 and the driven pulley 15 are installed in the inspection well 6, so that the chain has a single-strand mouth-shaped structure.
As shown in fig. 3 and 4, the suspension bracket 2 includes a bracket body 22 and a hook 21 connected to the bracket body, wherein the hook 21 passes through the pin of the chain 16, thereby connecting the bracket body 22 to the roller chain 16 of the chain guide; the frame body 22 comprises an upper layer frame, a lifting frame 23 arranged at the lower part of the upper layer frame and a lower layer frame which can move up and down along the lifting frame 23, the upper layer frame is provided with a slag hopper 31, the lower layer frame is provided with a mud hopper 33, and the heights of the slag hopper 31 and the mud hopper 33 in the drainage pipeline 8 can be adjusted through the lifting frame, so that scum can be conveniently skimmed off and sludge can be conveniently scooped off; a filter screen 32 is arranged above a mud bucket of the desilting slag remover 3, and the plane of the filter screen 32 is vertical to the axis of a drainage pipeline; the sludge pumping and collecting vehicle 4 comprises a sludge storage tank, a suction pump and a sludge pumping pipe, and the sludge pumping pipe is placed at the bottom of a downstream inspection well 6 of the sludge crusher.
Furthermore, the number of the hooks is 2 or more, so as to limit the axial displacement of the suspension type support 2 in the drainage pipeline 8; the upper part of the hook is a hook 21, the lower part of the hook is a connecting rod 22 connected with the frame body, and the connecting rod 22 needs to have a certain length so that the suspension type support 2 can smoothly pass through a right-angled bend when moving along with the chain; suspension type support 2 is including the two side telescopic links 24 that are located the both sides of frame body, two side telescopic links 24 are the elasticity telescopic link that the end has the universal wheel, flexible direction with drainage pipe 8's axis is perpendicular, is used for the restriction the lateral displacement of suspension type support in drainage pipe 8.
A method of using the apparatus, the method comprising:
stage of installation
The method comprises the following steps: emptying the sewage 7 in the drainage pipeline 8 in advance so that an operator can conveniently enter the inspection well 6 for operation;
step two: a chain type guide rail 1 is arranged in the detection well 6, and the chain type guide rail 1 comprises a driving chain wheel 14, a driven pulley 15 and a chain 16 matched with the driving chain wheel and the driven pulley 15;
step three: fixing the suspension brackets 2 or brackets to the chain 16;
step four: installing the desilting and deslagging device 3 on the suspension type bracket 2, and adjusting the lifting frame 23 on the suspension type bracket 2 according to the pipe diameter and the water level of the drainage pipeline 8, so that the scum hopper 31 and the mud hopper 33 of the desilting and deslagging device 3 are convenient for removing scum and silt in the drainage pipeline 8;
step five: the motor 17 drives the driving chain wheel 14 to rotate, and then the chain 16 is driven, so that the suspension type bracket 2 provided with the desilting and deslagging device 3 is conveyed into the drainage pipeline 8;
step six: the sludge pumping and collecting vehicle 4 is positioned on the ground 5 outside the inspection well 6;
step seven: the drainage pipeline 8 normally enters water;
and (3) an operation stage:
the method comprises the following steps: the driving chain wheel 14 is driven by the motor 17 to rotate, and then the chain 16 is driven, so that the suspension type bracket 2 is conveyed to the inside of the drainage pipeline 8, and the moving direction of the suspension type bracket 2 in the drainage pipeline 8 and the openings of the slag bucket 31 and the mud bucket 33 of the desilting and deslagging device 3 face to the direction opposite to the flowing direction of the sewage in the drainage pipeline;
step two: in the relative movement process of the desilting slag remover 3 and the sewage 7, the slag hopper 31 can skim the scum on the upper layer of the sewage 7, the filter screen 32 can filter the suspended particles on the middle layer of the sewage 7, and the mud hopper 33 can skim the mud on the lower layer of the sewage 7;
step three: the suspended bracket 2 is conveyed out of the inspection well 6 from the drainage pipeline 8 by the continuous rotation of the motor 17, and scum, suspended particles and sludge collected by the desilting slag remover 3 are transferred to a vehicle sludge storage tank by the sludge pumping and collecting vehicle 4;
step four: keeping the motor 17 rotating continuously, so as to transport the cleaned desilting cleaner 3 to the interior of the drainage pipeline 8 again, and repeating the second step and the third step;
and (3) maintenance stage:
the method comprises the following steps: when the desilting slag remover 3 is blocked or damaged, the driving chain wheel 14 is reversely rotated by the motor 17, so that the desilting slag remover 3 to be repaired is conveyed out to the top of the inspection well 6 along with the chain;
step two: the desilting slag remover 3 is detached from the suspension type bracket 2, and the desilting slag remover 3 is overhauled and cleaned;
step three: the desilting cleaner 3 is fixed on the hanging bracket 2 again, and the driving sprocket 14 is rotated by the motor 17, so that the overhauled desilting cleaner 3 is conveyed into the drainage pipeline 8 along with the chain, and then the steps one to four of the operation stage are carried out.
The practical effect according to the embodiment of the embodiment shows that after the drainage pipeline runs for 12 hours continuously through the desilting and deslagging device, scum, suspended particulate matters and sludge in the downstream inspection well are effectively cleaned, and the SS concentration of sewage is reduced by 73.0 percent compared with that of the upstream inspection well.
The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the invention without departing from the spirit and scope of the inventive concept, and the scope of the appended claims is intended to be protected.

Claims (9)

1. A method for dredging and deslagging a gravity flow sewage pipeline, characterized in that the method comprises:
and (3) an installation stage:
the method comprises the following steps: emptying sewage in a drainage pipeline in advance so that an operator can conveniently enter an inspection well for operation;
step two: a chain type guide rail is arranged in the detection well, and comprises a driving chain wheel, a driven pulley and a chain matched with the driving chain wheel and the driven pulley;
step three: fixing a single or a plurality of suspension brackets on the chain;
step four: the desilting slag remover is arranged on a suspension type bracket, and a lifting frame on the suspension type bracket is adjusted according to the pipe diameter and the water level of the drainage pipeline, so that a slag hopper and a mud hopper of the desilting slag remover are convenient for removing scum and sludge in the drainage pipeline;
step five: the motor drives the driving chain wheel to rotate, and then the chain is driven, so that the suspension type bracket provided with the desilting slag remover is conveyed into the drainage pipeline;
step six: the sludge pumping and collecting vehicle is positioned on the ground outside the inspection well;
step seven: water normally enters the drainage pipeline;
and (3) an operation stage:
the method comprises the following steps: the driving chain wheel is driven by the motor to rotate, and then the chain is driven, so that the suspension type bracket is conveyed into the drainage pipeline, and the moving direction of the suspension type bracket in the drainage pipeline and the opening directions of the slag hopper and the mud hopper of the desilting slag remover are opposite to the flowing direction of sewage in the drainage pipeline;
step two: in the relative movement process of the desilting slag remover and the sewage, the slag hopper can skim the scum on the upper layer of the sewage, the filter screen can filter out the suspended particles on the middle layer of the sewage, and the mud hopper can skim the silt on the lower layer of the sewage;
step three: the suspended bracket is conveyed out of the inspection well from the drainage pipeline through the continuous rotation of the motor, and scum, suspended particulate matters and sludge collected by the desilting slag remover are transferred to a sludge storage tank of the vehicle through a sludge pumping and collecting vehicle;
step four: keeping the motor to rotate continuously, so that the cleaned desilting slag remover is conveyed to the interior of the drainage pipeline again, and repeating the second step and the third step;
and (3) maintenance stage:
the method comprises the following steps: when the desilting slag remover is blocked or damaged, the driving chain wheel is reversely rotated by the motor, so that the desilting slag remover to be repaired is conveyed out to the top of the inspection well along with the chain;
step two: the desilting slag remover is detached from the suspension type bracket, and the desilting slag remover is overhauled and cleaned;
step three: and the desilting slag remover is fixed on the suspension type support again, and the driving chain wheel is rotated through the motor, so that the overhauled desilting slag remover is conveyed into the drainage pipeline along with the chain, and then the operation stage is carried out from the first step to the fourth step.
2. The method of claim 1, wherein the chain track comprises a support frame having a drive sprocket, a driven pulley and a chain engaged therewith, wherein a motor is coupled to the drive sprocket for rotating the drive sprocket to move the chain, wherein the driven pulley has a race, wherein the race of the chain engages the teeth of the drive sprocket and the outer side of the chain engages the race of the driven pulley.
3. The method of claim 2 wherein the drive sprocket is located at the top of the bolster frame and the driven pulley is located at the bottom of the bolster frame; the pitch of the driving chain wheel is 10-15 cm, and the tooth thickness is 7-9 cm; the width of a wheel groove of the driven pulley is 5-8 cm, and the depth of the wheel groove is 6-10 cm; the wheel surfaces of the driving chain wheel and the driven pulley and the axis of the drainage pipeline are located on the same plane.
4. The method of claim 1, wherein the hanging bracket includes a body and a hook coupled to the body, the hook passing through a pin of the chain to couple the body to a roller chain of the chain track; the frame body includes the upper frame, sets up the crane in upper frame lower part to and can follow the lower floor's frame that the crane reciprocated, and the sediment fill is installed to the upper frame, and lower floor's frame is installed the bagger, through the adjustable sediment fill of crane and the height of bagger in drainage pipe, make it be convenient for skim off the dross and shovel off silt.
5. The method as claimed in claim 1, wherein a filter screen is installed above the hopper of the desilting and deslagging device, and the plane of the filter screen is vertical to the axis of the drainage pipeline.
6. The method of claim 1, wherein the sludge-pumping and collecting vehicle comprises a sludge storage tank, a suction pump and a sludge pumping pipe, and the sludge pumping pipe is placed at the bottom of the inspection well downstream of the sludge crusher.
7. The method of claim 4, wherein the hanging bracket is provided with 2 or more hooks to limit axial displacement of said hanging bracket in the drain pipe.
8. The method of claim 4, wherein the hook is formed with an upper hook portion and a lower portion having a connecting bar portion connected to the frame body, the connecting bar portion having a length to allow the hanging bracket to smoothly pass through a right angle bend as the hanging bracket moves with the chain.
9. The method of claim 4, wherein the hanging bracket comprises double-sided telescoping rods on both sides of the body, the double-sided telescoping rods comprising flexible telescoping rods with universal wheels at the ends thereof, the telescoping direction being perpendicular to the axis of the drain pipe for limiting lateral displacement of the hanging bracket in the drain pipe.
CN201910989486.9A 2019-10-17 2019-10-17 Desilting and deslagging method for gravity flow sewage pipeline Pending CN110792159A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910989486.9A CN110792159A (en) 2019-10-17 2019-10-17 Desilting and deslagging method for gravity flow sewage pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910989486.9A CN110792159A (en) 2019-10-17 2019-10-17 Desilting and deslagging method for gravity flow sewage pipeline

Publications (1)

Publication Number Publication Date
CN110792159A true CN110792159A (en) 2020-02-14

Family

ID=69439560

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910989486.9A Pending CN110792159A (en) 2019-10-17 2019-10-17 Desilting and deslagging method for gravity flow sewage pipeline

Country Status (1)

Country Link
CN (1) CN110792159A (en)

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