Operation method for cleaning concrete ground pump conveying pipeline

Abstract

The invention relates to the technical field of concrete construction, in particular to an operation method for cleaning a concrete ground pump conveying pipeline, which comprises the following steps of: S1, disconnecting the conveying pipeline between a concrete ground pump and a material distributing machine after concrete is poured; s2, two cleaning balls are sequentially put into an upper opening of the conveying pipeline, a certain amount of clear water is added between the two cleaning balls, and then the upper opening of the conveying pipeline is connected with an air pump; s3, an air pump is started, and air pressure pushes the two cleaning balls to move towards a lower opening of the conveying pipeline; according to the operation method for cleaning the concrete ground pump conveying pipeline, the cleaning efficiency is high, the cleaning effect is good, the structure is reasonable, operation is convenient, the working efficiency is high, a large amount of labor cost is saved, residual materials can be recycled after on-site concrete pouring is completed, and waste and pollution are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of concrete construction, in particular to an operating method for cleaning a concrete pump delivery pipeline. Background Art

[0002] A concrete pump is a device specially used to transport concrete from a mixing plant or other concrete supply point to different locations on the construction site. It is used in large projects such as construction sites, highway bridges, dams, tunnels, etc. After the concrete pump is poured, the delivery pipeline needs to be cleaned. The common methods are direct water pumping, pipe removal and piston addition.

[0003] The direct water pumping method is to inject a large amount of water or cleaning fluid, and use the scouring force of water to push the residual concrete in the pipe to the end of the pipe, thereby removing the concrete in the pipe. For short-distance transmission pipelines, especially for ground construction, the direct water pumping method is relatively simple and effective. However, for high-rise buildings or long-distance transmission, the scouring force of the water flow is difficult to effectively clean deep into the pipe, especially the elbow part in the pipe or the high-altitude pipe.

[0004] The pipe removal method refers to manually dismantling the delivery pipes and elbows of the concrete pump and cleaning them section by section. Although this method can more thoroughly remove the residual concrete in the pipe, its operation is cumbersome and inefficient. Especially in the construction of high-rise buildings, high-altitude operations are required to dismantle high-altitude pipes, which poses great safety risks and may cause worker injuries or accidents.

[0005] The piston method places a piston in the delivery pipe and uses the reverse pressure of the pump to push out the residual concrete. This method is usually used for cleaning long pipes and complex pipe networks. It can effectively remove some concrete in the pipe, but the operation is difficult and requires the operator to have high operating experience and skills to ensure that the piston passes through the pipe smoothly to avoid blockage or damage. If the pressure is too high or the piston is stuck, it may cause damage to the pumping system or delivery pipe, increasing maintenance costs.

[0006] Therefore, in the prior art, whether it is the direct water pumping method, the pipe dismantling method or the piston adding method, the cleaning efficiency or cleaning effect of the concrete pump delivery pipeline still needs to be improved. Summary of the invention

[0007] In order to improve the cleaning efficiency and cleaning effect, the present application provides an operating method for cleaning a concrete pump delivery pipeline.

[0008] The present invention provides an operation method for cleaning a concrete pump delivery pipeline using the following technical solution:

[0009] A method for cleaning a concrete pump delivery pipeline comprises the following steps:

[0010] S1: After the concrete pouring construction is completed, disconnect the delivery pipeline from the concrete pump and the concrete placing boom;

[0011] S2: placing two cleaning balls at the upper end of the delivery pipe in sequence, adding a certain amount of clean water between the two cleaning balls, and then connecting an air pump to the upper end of the delivery pipe;

[0012] S3: Start the air pump, and the air pressure pushes the two cleaning balls to move toward the lower end of the conveying pipe.

[0013] Preferably, in the process of placing the two cleaning balls into the conveying pipe, the first cleaning ball is pushed into the pipe 1-2 m before placing the second cleaning ball, so that the distance between the two cleaning balls is 1-2 m.

[0014] Preferably, the cleaning ball is a sponge ball.

[0015] Preferably, the air pump is connected in sequence with a control valve and a reducer, the diameter of the reducer narrows along the pumping direction, and includes a thick pipe section of 500 mm and a thin pipe section of 50 mm.

[0016] Preferably, before using the air pump for cleaning, the conveying pipe is first fixed by using floor fixing wooden wedges and a ground pump support reaction frame, at least two floor fixing wooden wedges are provided, the floor fixing wooden wedges are provided in the vertical section of the conveying pipe, and the ground pump support reaction frame is provided in the horizontal section at the lower end of the conveying pipe.

[0017] Preferably, after disconnecting the conveying pipeline from the concrete floor pump and the concrete placing boom, the concrete floor pump and the concrete placing boom are first cleaned, and the residual materials in the concrete truck to which the concrete floor pump is connected are cleaned; the concrete placing boom is connected to an air pump during cleaning, and the airflow of the air pump is used to pour the residual materials in the concrete placing boom onto the concrete cast-in-place surface reserved in advance, and the connection between the air pump and the concrete placing boom is disconnected after the cleaning is completed; the concrete floor pump and the concrete truck are washed with water and the cleaning residual materials are recovered using a recovery box.

[0018] Preferably, in S3, the recovery box is arranged at the lower opening of the conveying pipe, and the concrete residues cleaned out of the conveying pipe fall into the recovery box.

[0019] Preferably, in the process of using the air pump for cleaning, the air pump is a diesel air compressor air pump, and the diesel air compressor air pump is powered by W-3.5 / 5 diesel.

[0020] Preferably, in S2, the upper opening of the conveying pipeline is connected to the air pump by using a hose; the hose used in the cleaning process can be the hose between the conveying pipeline and the material placing machine.

[0021] Preferably, during the process of cleaning the conveying pipeline, the operator at the upper end of the conveying pipeline and the operator at the lower end of the conveying pipeline must maintain communication, and the two groups of operators communicate with each other using walkie-talkies.

[0022] The beneficial effects of the present invention are:

[0023] In the above operation method, first disconnect the connection between the conveying pipeline and the concrete pump and the concrete placing boom to ensure the independence of the cleaning operation. Subsequently, by placing two cleaning balls into the upper opening of the conveying pipeline and adding an appropriate amount of clean water, the friction between the cleaning balls and the inner wall of the conveying pipeline can be effectively increased, the lubricating effect of the clean water can be released, and the cleaning balls can be pushed to move more smoothly in the conveying pipeline. After the air pump is started, the two cleaning balls are pushed downward along the conveying pipeline by air pressure, so that the residual concrete in the conveying pipeline is gradually pushed out by the cleaning balls, forming a strong flushing effect. Since the cleaning balls will have a uniform cleaning effect on the pipe wall when moving in the pipe, at the same time, the addition of clean water can also enhance the strength of pipe cleaning and reduce concrete residue. This operation method not only improves the cleaning efficiency, but also ensures that no dead corners are left during the cleaning process, the cleaning effect is good, and the inconvenience and risks caused by manual disassembly or complex operations are avoided, thereby improving construction efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a concrete pumping system in an embodiment of the present application;

[0025] Figure 2 is a schematic diagram of the structure of the air pump in the embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of the structure after the air pump is connected to the material placing machine in the embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the structure after the air pump is connected to the delivery pipeline in the embodiment of the present application;

[0028] Figure 5 It is a structural schematic diagram of the lower end of the delivery pipeline in an embodiment of the present application;

[0029] Figure 6 It is a structural schematic diagram of the upper opening of the delivery pipeline in an embodiment of the present application.

[0030] Explanation of reference numerals: 1. air pump; 2. control valve; 3. reducer; 4. concrete placing machine; 5. hose; 6. delivery pipeline; 7. floor fixing wooden wedge; 8. floor pump support reaction frame; 9. recovery box; 10. conical pipe; 11. concrete floor pump; 12. concrete tank truck; 13. cleaning ball; DETAILED DESCRIPTION

[0031] The following will be combined Figure 1-Figure 6 The present invention is further illustrated by the following embodiments.

[0032] This embodiment discloses an operating method for cleaning a concrete pump delivery pipeline.

[0033] Reference Figure 1 The concrete pumping system in which the delivery pipeline 6 is located includes a concrete floor pump 11, a tapered pipe 10, a delivery pipeline 6, a hose 5 and a concrete placing boom 4 which are connected in sequence. The concrete floor pump 11 and the tapered pipe 10 are connected to the lower end of the delivery pipeline 6, and the concrete placing boom 4 and the hose 5 are connected to the upper end of the delivery pipeline 6. Furthermore, the concrete floor pump 11 is connected to a concrete tanker 12, so that the concrete tanker 12 serves as a concrete supply point.

[0034] Reference Figures 1 to 6 The operation method of cleaning the concrete pump delivery pipeline includes the following steps:

[0035] S1: After the concrete pouring construction is completed, the delivery pipeline 6 is disconnected from the concrete pump 11 and the concrete placing boom 4;

[0036] S2: Two cleaning balls 13 are placed in the upper opening of the delivery pipe 6 in sequence, a certain amount of clean water is added between the two cleaning balls 13, and then the air pump 1 is connected to the upper opening of the delivery pipe 6;

[0037] S3: Start the air pump 1, and the air pressure pushes the two cleaning balls 13 to move toward the lower end of the conveying pipe 6.

[0038] In the above operation method, first disconnect the connection between the delivery pipe 6 and the concrete pump 11 and the concrete placing machine 4 to ensure the independence of the cleaning operation. Subsequently, by placing two cleaning balls 13 into the upper opening of the delivery pipe 6 and adding an appropriate amount of clean water, the friction between the cleaning balls 13 and the inner wall of the delivery pipe 6 can be effectively increased, the lubricating effect of the clean water can be released, and the cleaning balls 13 can be pushed to move more smoothly in the delivery pipe 6. After the air pump 1 is started, the two cleaning balls 13 are pushed downward along the delivery pipe 6 by air pressure, so that the residual concrete in the delivery pipe 6 is gradually pushed out by the cleaning balls 13, forming a strong flushing effect. Since the cleaning balls 13 will have a uniform cleaning effect on the pipe wall when moving in the pipe, at the same time, the addition of clean water can also enhance the strength of pipe cleaning and reduce concrete residue. This operation method not only improves the cleaning efficiency, but also ensures that no dead corners are left during the cleaning process, the cleaning effect is good, and the inconvenience and risks caused by manual disassembly or complex operations are avoided, thereby improving construction efficiency and safety.

[0039] In the process of using the air pump 1 for cleaning, the air pump 1 uses a diesel air compressor air pump 1, and the diesel air compressor air pump 1 uses a W-3.5 / 5 diesel engine, which is convenient for on-site operation and meets the power requirements. Further, the air pump 1 is connected with a control valve 2 and a reducer 3 in sequence. The setting of the control valve 2 is convenient for controlling the opening and closing of the air pump 1. The diameter of the reducer 3 is narrowed along the pumping direction, including a 500mm thick pipe section and a 50mm thin pipe section. The air flow velocity is increased by narrowing the pipe diameter, thereby improving the cleaning effect.

[0040] Before using the air pump 1 for cleaning, the conveying pipe 6 is first fixed by using the floor fixing wooden wedges 7 and the ground pump supporting reaction frame 8 to resist the impact when cleaning the pipe, wherein at least two floor fixing wooden wedges 7 are set, the floor fixing wooden wedges 7 are set in the vertical section of the conveying pipe 6, and the ground pump supporting reaction frame 8 is set in the horizontal section at the lower end of the conveying pipe 6.

[0041] After the delivery pipeline 6 is disconnected from the concrete floor pump 11 and the concrete placing boom 4, the concrete floor pump 11 and the concrete placing boom 4 are first cleaned, and the residual materials in the concrete truck connected to the concrete floor pump 11 are cleaned, wherein the concrete placing boom 4 is also connected to the air pump 1 during cleaning, and the airflow of the air pump 1 is used to pour the residual materials in the concrete placing boom 4 onto the concrete cast-in-place surface reserved in advance. After the cleaning is completed, the connection between the air pump 1 and the concrete placing boom 4 is disconnected to use the air pump 1 for subsequent cleaning of the delivery pipeline 6. After washing with water, the concrete floor pump 11 and the concrete truck are used to recycle the cleaning residual materials using the recycling box 9 for recycling and reuse of the concrete residual materials. Further, in S3, the recycling box 9 is arranged at the lower end of the delivery pipeline 6, and the concrete residual materials cleaned out of the delivery pipeline 6 eventually fall into the recycling box 9, thereby improving the recycling and reuse effect of the concrete.

[0042] When placing the two cleaning balls 13 into the conveying pipe 6, the first cleaning ball 13 is first pushed into the pipe 1-2m before placing the second cleaning ball 13, so that the distance between the two cleaning balls 13 is 1-2m, thereby allowing enough space between the two cleaning balls 13 for injecting clean water, and ultimately improving the cleaning efficiency and cleaning effect of the conveying pipe 6 through the combination of the cleaning balls 13 and clean water.

[0043] In S2, the upper end of the delivery pipe 6 is connected to the air pump 1 by using a hose 5. The hose 5 can more quickly adapt to the positional relationship between the delivery pipe 6 and the air pump 1, thereby improving the connection efficiency. Furthermore, the hose 5 used in the cleaning process can be the hose 5 between the delivery pipe 6 and the material placing machine 4, so there is no need to prepare multiple hoses.

[0044] During the process of cleaning the conveying pipeline 6, the operator at the upper end of the conveying pipeline 6 and the operator at the lower end of the conveying pipeline 6 must maintain communication. In this embodiment, the two groups of operators communicate with each other using a walkie-talkie to ensure that the conveying pipeline 6 is cleaned after the preparatory work is completed, and to ensure that the air pump 1 is turned off after the conveying pipeline 6 is cleaned.

[0045] In this embodiment, the cleaning ball 13 is a sponge ball, which is soft and has a certain elasticity and water absorption, and can be closely attached to the inner wall of the pipeline to effectively remove the residual concrete. When the air pressure pushes the sponge ball to move in the conveying pipeline 6, the sponge ball can absorb and carry clean water, and at the same time scrape off the concrete residue on the inner wall of the pipeline, thereby achieving a better cleaning effect.

[0046] The above are all preferred embodiments of the present invention, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for cleaning a concrete pump delivery pipeline, characterized in that: The following steps are involved: S1: After the concrete pouring construction is completed, the delivery pipeline (6) is disconnected from the concrete pump (11) and the concrete placing boom (4); S2: two cleaning balls (13) are sequentially placed at the upper opening of the delivery pipe (6), a certain amount of clean water is added between the two cleaning balls (13), and then an air pump (1) is connected to the upper opening of the delivery pipe (6); S3: Start the air pump (1), and the air pressure pushes the two cleaning balls (13) to move toward the lower end of the conveying pipe (6).

2. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: When placing the two cleaning balls (13) into the conveying pipe (6), the first cleaning ball (13) is pushed into the pipe 1-2 m before placing the second cleaning ball (13), so that the distance between the two cleaning balls (13) is 1-2 m.

3. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: The cleaning ball (13) is a sponge ball.

4. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: The air pump (1) is connected in sequence to a control valve (2) and a reducer (3); the diameter of the reducer (3) narrows along the pumping direction and comprises a thick pipe section of 500 mm and a thin pipe section of 50 mm.

5. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: Before using the air pump (1) for cleaning, the delivery pipe (6) is first fixed by using a floor fixing wooden wedge (7) and a ground pump supporting reaction frame (8), wherein at least two floor fixing wooden wedges (7) are provided, the floor fixing wooden wedges (7) are provided in the vertical section of the delivery pipe (6), and the ground pump supporting reaction frame (8) is provided in the horizontal section at the lower end of the delivery pipe (6).

6. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: After the delivery pipeline (6) is disconnected from the concrete floor pump (11) and the concrete placing boom (4), the concrete floor pump (11) and the concrete placing boom (4) are first cleaned, and the residual materials in the concrete truck connected to the concrete floor pump (11) are cleaned; the concrete placing boom (4) is connected to the air pump (1) during cleaning, and the residual materials in the concrete placing boom (4) are poured onto the concrete cast-in-place surface reserved in advance by using the airflow of the air pump (1), and the connection between the air pump (1) and the concrete placing boom (4) is disconnected after the cleaning is completed; the concrete floor pump (11) and the concrete truck are washed with water, and the cleaning residual materials are recovered by using the recovery box (9).

7. The method for cleaning a concrete pump delivery pipeline according to claim 6, characterized in that: In S3, the recovery box (9) is arranged at the lower opening of the conveying pipe (6), and the concrete residues cleaned out of the conveying pipe (6) fall into the recovery box (9).

8. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: In the process of using the air pump (1) for cleaning, the air pump (1) is a diesel air compressor air pump (1), and the diesel air compressor air pump (1) is powered by a W-3.5 / 5 diesel engine.

9. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: In S2, the upper end of the conveying pipeline (6) is connected to the air pump (1) by using a hose (5); the hose (5) used in the cleaning process can be the hose (5) between the conveying pipeline (6) and the material placing machine (4).

10. The method for cleaning a concrete pump delivery pipeline according to claim 1, characterized in that: During the process of cleaning the conveying pipeline (6), the operator at the upper end of the conveying pipeline (6) and the operator at the lower end of the conveying pipeline (6) must maintain communication, and the two groups of operators communicate using walkie-talkies.

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