CN112620260B - Backwashing method for concrete pipeline of spraying and mixing system - Google Patents
Backwashing method for concrete pipeline of spraying and mixing system Download PDFInfo
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- CN112620260B CN112620260B CN202011408138.7A CN202011408138A CN112620260B CN 112620260 B CN112620260 B CN 112620260B CN 202011408138 A CN202011408138 A CN 202011408138A CN 112620260 B CN112620260 B CN 112620260B
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- concrete
- pipeline
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- pipe
- pressure air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Nozzles (AREA)
Abstract
A backwashing method for a concrete pipeline of a spraying and mixing system relates to a method for cleaning the concrete pipeline of the spraying and mixing system. The invention mainly aims to solve the problem that the traditional method often causes the sediment in the pipeline to be incapable of being sprayed out from the mechanical arm spray head. The concrete in the hopper is pumped as completely as possible; filling water into the hopper of the jet pump, and ensuring that the hopper is connected with a water source; starting a pump, pushing the concrete in the pipeline by water, and conveying the concrete into a mixer of the manipulator through a concrete conveying pipeline; the mixer is connected with a high-pressure air pipe, and water and concrete residues are sent out under the action of the high-pressure air. The joint of the outlet of the jet pump and the concrete conveying pipeline is opened, a nozzle on the manipulator is removed, a plug is installed, a large amount of water is injected into the concrete conveying pipeline through a water pipe, high-pressure air is started, and water and residues in the pipe are flushed out through the high-pressure air. And cleaning the jet pump and the rest of the pipeline. The advantage can solve because of the unclean concrete injection pipeline that leads to of pipeline washing and leave the thing jam problem.
Description
The technical field is as follows:
the invention relates to a method for cleaning a concrete pipeline of a spray mixing system.
Background art:
the TBM cannot normally tunnel due to different faults in the operation process of the spraying and mixing system, and common faults can be divided into mechanical faults, hydraulic faults, electrical faults and other faults. Under normal conditions, the problem of mechanical failure is the main reason that the spraying and mixing system influences tunneling, and pipeline blockage in the mechanical failure can account for half of the proportion, so that the problem of pipe blockage is particularly important to be treated.
The traditional cleaning method often causes that some broken stones or other sediments in the pipeline can not be completely sprayed out of the mechanical arm spray head, when the delivery pump stops pumping water, the broken stone particles and the sediments fall back to the lower part of the pipeline or the bent part of the pipeline due to gravity, and when the pump pumps concrete again, the pipeline is easily blocked.
The invention content is as follows:
the technical problem to be solved by the invention is to provide a backwashing method for concrete pipelines of a spray mixing system, which can effectively solve the problem of blockage of concrete spray pipelines caused by incomplete pipeline cleaning in TBM tunnel construction, can greatly improve the cooperative working performance of the concrete spray system, a steel arch system and an anchor rod drilling system, and improve the tunnel supporting and tunneling efficiency of TBM construction.
The technical scheme adopted by the invention is as follows:
firstly, on the premise of ensuring no idle driving, the concrete in the hopper is pumped as far as possible;
filling water into the hopper of the jet pump, and ensuring that the hopper is connected with a water source;
thirdly, starting a pump, wherein the water pushes the concrete in the pipeline to flow into a mixer of the manipulator through a concrete conveying pipeline; and the mixer is connected with a high-pressure air pipe, and water and concrete residues are sent out under the action of the high-pressure air to finish primary cleaning.
Fourthly, releasing the pressure in the pipeline and cutting off the power supply after the reverse pump acts for several times;
fifthly, opening a discharge elbow and a discharge door, and thoroughly removing the residual concrete in the hopper, the distribution valve box body and the reducer pipe;
sixthly, opening a pipe clamp (closest to the jet pump) at the joint of the outlet of the jet pump and the concrete conveying pipeline, removing a spray head on a manipulator in the spray mixing system, installing a plug at the spray head of the manipulator and fixing the plug by the pipe clamp, inserting another water pipe into the concrete conveying pipeline from the mixer, injecting a large amount of water into the concrete conveying pipeline, starting high-pressure air, and flushing out the water and residues in the pipe by the high-pressure air. And finally, cleaning the jet pump and the rest of pipelines to finish secondary cleaning.
The invention has the advantages that: the method can effectively solve the problem of blockage of concrete injection pipelines due to incomplete pipeline cleaning in the TBM tunnel construction, can greatly improve the cooperative working performance of a concrete injection system, a steel arch system and an anchor rod drilling system, and improves the tunnel supporting and tunneling efficiency of the TBM tunnel construction.
Description of the drawings:
FIG. 1 is a schematic view showing the connection state of a jet pump, a concrete pipe and a robot in the present invention;
FIG. 2 is a schematic view showing the connection state of the jet pump, the concrete pipe and the robot at the time of the second backwashing in the present invention.
In the figure, 1 is a robot, 2 is a concrete pipe, 3 is a concrete residue, and 4 is a jet pump.
The specific implementation mode is as follows:
the invention is further described below in connection with fig. 1 and 2;
firstly, on the premise of ensuring no idle driving, the concrete in the hopper is pumped as far as possible;
filling water into a hopper of the injection pump, and ensuring that the hopper is connected with a water source;
thirdly, starting a pump, wherein the water pushes the concrete in the pipeline to flow into a mixer of the manipulator through a concrete conveying pipeline; the mixer is connected with a high-pressure air pipe, and water and concrete residues are sent out under the action of high-pressure air to finish primary cleaning.
Fourthly, releasing the pressure in the pipeline and cutting off the power supply after a few times of reverse pump action;
fifthly, opening a discharge elbow and a discharge door, and thoroughly removing the residual concrete in the hopper, the distribution valve box body and the reducer pipe;
sixthly, opening a pipe clamp (closest to the jet pump) at the joint of the outlet of the jet pump and the concrete conveying pipeline, removing a spray head on a manipulator in the spray mixing system, installing a plug at the spray head of the manipulator and fixing the plug by the pipe clamp, inserting another water pipe into the concrete conveying pipeline from the mixer, injecting a large amount of water into the concrete conveying pipeline, starting high-pressure air, and flushing out the water and residues in the pipe by the high-pressure air. And finally, cleaning the jet pump and the rest of pipelines to finish secondary cleaning.
Claims (1)
1. The backwashing method of the concrete pipeline of the spray mixing system is characterized by comprising the following steps:
firstly, on the premise of ensuring no idle driving, the concrete in the hopper is pumped as far as possible;
filling water into the hopper of the jet pump, and ensuring that the hopper is connected with a water source;
thirdly, starting a pump, wherein the water pushes the concrete in the pipeline to flow into a mixer of the manipulator through a concrete conveying pipeline; the mixer is connected with a high-pressure air pipe, and water and concrete residues are sent out under the action of high-pressure air to finish primary cleaning;
fourthly, releasing the pressure in the pipeline and cutting off the power supply after the reverse pump acts for several times;
fifthly, opening a discharge elbow and a discharge door, and thoroughly removing residual concrete in the hopper, the distribution valve box body and the reducer pipe;
sixthly, opening a pipe clamp at the joint of the outlet of the jet pump and the concrete conveying pipeline, removing a spray head on a manipulator in the jet mixing system, installing a plug at the spray head of the manipulator and fixing the plug by the pipe clamp, inserting another water pipe into the concrete conveying pipeline from the mixer, injecting a large amount of water into the concrete conveying pipeline, starting high-pressure air, and flushing out water and residues in the pipe by the high-pressure air; and finally, cleaning the jet pump and the rest of pipelines to finish secondary cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011408138.7A CN112620260B (en) | 2020-12-05 | 2020-12-05 | Backwashing method for concrete pipeline of spraying and mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011408138.7A CN112620260B (en) | 2020-12-05 | 2020-12-05 | Backwashing method for concrete pipeline of spraying and mixing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112620260A CN112620260A (en) | 2021-04-09 |
| CN112620260B true CN112620260B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011408138.7A Active CN112620260B (en) | 2020-12-05 | 2020-12-05 | Backwashing method for concrete pipeline of spraying and mixing system |
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| CN (1) | CN112620260B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115090623A (en) * | 2022-07-01 | 2022-09-23 | 中交路桥建设有限公司 | Cleaning device and cleaning method for concrete pouring guide pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106111A (en) * | 1977-04-07 | 1978-08-08 | Rose Leo J | Improved concrete making and transmission |
| JPS6131676A (en) * | 1984-07-25 | 1986-02-14 | Kyokuto Kaihatsu Kogyo Co Ltd | Cleaning of piston type concrete pump |
| CN102619525A (en) * | 2012-02-15 | 2012-08-01 | 中铁隧道股份有限公司 | Method for dredging blocked mud door of slurry shield by aid of backwash and system |
| CN204212788U (en) * | 2014-11-12 | 2015-03-18 | 中铁六局集团有限公司 | Grouting pipeline for shield machine rinse-system |
| CN110541713A (en) * | 2019-09-30 | 2019-12-06 | 中交天和机械设备制造有限公司 | TBM presses and annotates formula concrete grouting pipeline |
| CN110630291A (en) * | 2019-09-30 | 2019-12-31 | 中交天和机械设备制造有限公司 | Grouting device with opening, closing and pressing functions |
| CN111408583A (en) * | 2020-04-30 | 2020-07-14 | 无锡华瀚能源装备科技有限公司 | Dust collector of camera is washed in combination of wind and water under ore deposit |
-
2020
- 2020-12-05 CN CN202011408138.7A patent/CN112620260B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106111A (en) * | 1977-04-07 | 1978-08-08 | Rose Leo J | Improved concrete making and transmission |
| JPS6131676A (en) * | 1984-07-25 | 1986-02-14 | Kyokuto Kaihatsu Kogyo Co Ltd | Cleaning of piston type concrete pump |
| CN102619525A (en) * | 2012-02-15 | 2012-08-01 | 中铁隧道股份有限公司 | Method for dredging blocked mud door of slurry shield by aid of backwash and system |
| CN204212788U (en) * | 2014-11-12 | 2015-03-18 | 中铁六局集团有限公司 | Grouting pipeline for shield machine rinse-system |
| CN110541713A (en) * | 2019-09-30 | 2019-12-06 | 中交天和机械设备制造有限公司 | TBM presses and annotates formula concrete grouting pipeline |
| CN110630291A (en) * | 2019-09-30 | 2019-12-31 | 中交天和机械设备制造有限公司 | Grouting device with opening, closing and pressing functions |
| CN111408583A (en) * | 2020-04-30 | 2020-07-14 | 无锡华瀚能源装备科技有限公司 | Dust collector of camera is washed in combination of wind and water under ore deposit |
Non-Patent Citations (2)
| Title |
|---|
| 泵送混凝土洗、润管预防堵管技术;丁红春等;《水科学与工程技术》;20180823(第04期);第73-75页 * |
| 混凝土湿喷机械手在成兰铁路的应用;贾小平;《建筑机械》;20160309(第03期);第29-31页 * |
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| CN112620260A (en) | 2021-04-09 |
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