CN215965288U

CN215965288U - Device for cleaning up impurity blockage of pipeline

Info

Publication number: CN215965288U
Application number: CN202122396777.2U
Authority: CN
Inventors: 雒飞; 都艺伟; 杨荣清
Original assignee: Everbright Envirotech China Ltd; Everbright Environmental Protection Research Institute Nanjing Co Ltd; Everbright Environmental Protection Technology Research Institute Shenzhen Co Ltd
Current assignee: Everbright Envirotech China Ltd; Everbright Environmental Protection Research Institute Nanjing Co Ltd; Everbright Environmental Protection Technology Research Institute Shenzhen Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-08
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a device for clearing impurity blockage of a pipeline, which comprises an impact module and a dissolving module, wherein the impact module comprises a compressed air inlet pipeline, a compressed air return pipeline, a magazine, an automatic sorting machine and a bullet conveyor which form a loop, the compressed air inlet pipeline and the compressed air return pipeline are arranged at two ends of the pipeline to be cleared, a bullet outlet of the magazine is communicated with the compressed air inlet pipeline, and the dissolving module comprises a slurry settling tank, a solution storage tank and related pipelines. The utility model provides power for the small balls through compressed air, so that the small balls impact the blocked position in the pipeline at high speed, then the power is provided through the pump, the solution is utilized to circularly flush the inner wall of the pipeline, the inner wall of the pipeline can be smooth as before after cleaning, the inner wall of the pipeline is not damaged, the small balls and the solution can be circularly used, and the operation cost is saved.

Description

Device for cleaning up impurity blockage of pipeline

Technical Field

The utility model relates to the technical field of pipeline cleaning, in particular to a device for cleaning impurity blockage of a pipeline.

Background

In a semidry deacidification system commonly used in the field of waste incineration power generation, acid-base neutralization reaction is carried out on acid gas in smoke by using lime slurry solution commonly used for removing the acid gas. Lime slurry is conveyed to the reaction tower through a slurry pump and a pipeline by a slurry preparation system, and the condition of pipeline blockage often occurs in the process, so that the equipment operation is influenced. The reason is that the lime raw material in China has low purity, contains a lot of solid impurities, and is easy to have various problems of insufficient stirring, falling off of a coating on the inner wall of a slurry tank and the like in the pulping process, so that impurities in the slurry are inevitable.

The main defects of the existing scheme are that the key blockage part has poor cleaning effect, and is time-consuming and water-consuming. According to the operation experience of the project, the pipeline blockage part is generally at a corner, and the blockage part is most easily caused by accumulation of the inertial deposition effect of solid particles due to the change of the shape and the change of the flow direction of the connecting port. When an operator determines that a line is blocked by finding that the flow in the line is zero, the line is usually blocked. The blocked part is not easy to dredge only by the flushing action of the process water, and the initially smooth inner part of the pipeline is not easy to recover completely even if the blocked part can be dredged. In addition, the process water is not provided with a recycling system, so that waste of water resources is caused.

There are some similar cases to consider this, as follows:

the patent CN201620558195.6 provides a concept for preventing lime slurry transfer line clogging, particularly in paragraphs [003] -007 ], comprising: atomizer, lime slurry pipeline, lime slurry pneumatic valve, lime slurry governing valve, flowmeter, lime slurry groove, wash motorised valve, wash water pump, water tank. The patent arranges one set of clear water rinse-system in the middle of lime thick liquid governing valve and the lime thick liquid pneumatic valve of lime thick liquid conveying pipeline, regularly washes the water respectively to both sides around the lime thick liquid pipeline, reaches the problem that prevents the pipe blockage.

This patent discloses that the cleaning effect is poor and a long time is required by using a set of clean water flushing system to remove the blockage in the pipeline only through a flushing means.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects, the utility model provides a device for clearing the impurity blockage of a pipeline, which aims at solving the problems that the pipeline is easy to block by lime mortar for semi-dry deacidification in the current waste incineration industry and is not easy to clear.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a device for clearing up pipeline impurity blocks up, including compressed air inlet pipe way, the compressed air pipeline of returning gas, the magazine, automatic separation machine, the bullet conveyer, the both ends at treating the clearance pipeline are installed respectively to the one end of compressed air inlet pipe way and the one end of compressed air pipeline of returning gas, the other end of compressed air inlet pipe way has the air pump, the play bullet mouth of magazine communicates in the compressed air inlet pipe way, the magazine is connected to the other end of compressed air pipeline of returning gas, automatic separation machine, the bullet conveyer sets up on compressed air returns the gas pipe way.

As a further preferable scheme, an inlet end conversion head is arranged between the compressed air inlet pipeline and the pipeline to be cleaned, and an outlet end conversion head is arranged between the compressed air return pipeline and the pipeline to be cleaned; the inlet end conversion head is provided with a liquid inlet pipe, the outlet end conversion head is provided with a liquid outlet pipe, the other end of the liquid inlet pipe is provided with a slurry sedimentation tank, the other end of the liquid outlet pipe is provided with a solution storage tank, and a circulating pipeline is arranged between the slurry sedimentation tank and the solution storage tank.

As a further preferable scheme, the circulating pipeline is communicated with the position close to the top of the slurry settling tank, the slurry settling tank is arranged at a higher height than the solution storage tank, and the liquid outlet pipe is communicated with the position close to the bottom of the solution storage tank.

As a further preferable scheme, a centrifugal pump is arranged on the liquid outlet pipe.

As a further preferable scheme, a discharge valve is arranged at the bullet outlet of the magazine.

As a further preferable scheme, a first valve is arranged on a compressed air inlet pipeline between the bullet outlet of the upper magazine and the inlet end conversion head; a second valve is arranged on a compressed air return pipeline between the outlet end conversion head and the automatic sorting machine; a third valve is arranged on the liquid inlet pipe; and a fourth valve is arranged on the liquid outlet pipe.

As a further preferable scheme, an exhaust electromagnetic valve is arranged on the inlet end conversion head.

Advantageous effects

1. Compared with the traditional process water for backwashing the whole lime slurry pipeline, the utility model can mainly clean the pipeline which is easy to block, and the small ball impacts the blocked position with high kinetic energy.

2. The impact mode and the dissolution mode can be used independently or in combination, the cleaning effect is better after the two methods are overlapped, the inner wall can be smooth as before after cleaning, and the inner wall of the pipeline is not damaged.

3. The compatibility is strong, and pipelines with various shapes and specifications can be used. Therefore, the blocked lime slurry pipeline can be quickly cleaned, and other blocked pipelines in a workshop can also be used.

4. The used small balls and the used solution can be recycled, so that the operation cost is saved.

5. The utility model has simple structure, is convenient to install in a workshop due to an independent system, occupies small area and is convenient to modify and upgrade the existing equipment. The running noise is low, the running cost is low, and the maintenance is convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

in the figure: 1, a pipeline to be cleaned; 2 inlet end conversion head; 3, an exhaust electromagnetic valve; 4 outlet end conversion head; 5, a magazine; 6, a discharge valve; 7 compressed air inlet pipe; 8, a first valve; 9, a valve II; 10 automatic sorting machine; 11 a bullet conveyor; 12 compressed air return pipeline; 13, a valve III; 14 slurry settling tank; 15 solution storage tank; 16 centrifugal pump; valve 17, valve four.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

As shown in figure 1, the whole system mainly comprises an impact module and a dissolving module, wherein the impact module comprises a magazine 5, a discharge valve 6, a compressed air inlet pipeline 7, an automatic separator 10, a bullet conveyor 11, a compressed air inlet pipeline 7 and a compressed air return pipeline 12; the dissolving module consists of a solution storage tank 15, a slurry settling tank 14, a centrifugal pump 16 and a solution pipeline.

In the impact module, compressed air provides power to the hard pellets, so that the pellets impact the blocked position in the pipeline at a high speed. After the small balls penetrate through the pipeline, the small balls are separated by an automatic separator and are returned to the magazine for recycling.

In the dissolving module, weak acid or process water is used for providing power through a pump to circularly wash the inner wall of the pipeline.

The pipeline 1 to be cleaned can be a bent pipe or a straight pipe, the illustration is convenient to be expressed by the straight pipe, the inlet end is provided with a conversion head 2, the outlet end is provided with a conversion head 4, the conversion heads have different calibers, and the device can be used for cleaning the blockage of the pipelines with different specifications. An exhaust electromagnetic valve 3 is arranged on the side surface of the inlet end conversion head 2.

The magazine 5 is a conical magazine, steel balls or other hard spherical objects are arranged in the magazine, the diameter of each small ball is 0.05-0.5 cm, the small ball can be driven by compressed air in a pipeline and accelerated to a certain speed, and the steel balls are used for replacing the small balls for convenience in description. The discharge valve 6 is arranged below the magazine and is an electric or pneumatic regulating valve, and the opening and closing size of the valve can be regulated to control the falling rate of steel balls at the discharge port. The steel balls are carried and accelerated through the compressed air inlet pipeline 7 after falling, and enter the pipeline to be cleaned through the conversion head 2. An automatic sorting machine 10 is also arranged behind the switching head 4 and can separate the steel balls from the mixture of the steel balls and impurities. The bullet conveyer 11 is arranged behind the automatic sorting machine 10, and can send the separated steel balls back to the magazine 5 through a compressed air and compressed air return pipeline 12 which enters from the lower part.

A solution storage tank 15 and a slurry sedimentation tank 14 are arranged below the pipeline 1 to be cleaned, a liquid inlet pipe is arranged on the inlet end conversion head 2, a liquid outlet pipe is arranged on the outlet end conversion head 4, the slurry sedimentation tank 14 is arranged at the other end of the liquid inlet pipe, the solution storage tank 15 is arranged at the other end of the liquid outlet pipe, and a circulating pipeline is arranged between the slurry sedimentation tank 14 and the solution storage tank 15. The impurities in the slurry settling tank 14 settle to the bottom, and the upper part is clear liquid which can flow into the solution storage tank 15 for recycling. The solution storage tank 15 is filled with liquid for cleaning pipelines, which can be weak acid such as oxalic acid, acetic acid and the like, and can also be process water of a power plant.

The compressed air pipeline is provided with a first valve 8 and a second valve 9, the solution pipeline is provided with a third valve 13 and a third valve 17, and the system is automatically controlled according to a cleaning program.

During use, the solution storage tank 15 is not periodically replenished with liquid, which may be weak acid or process water, in order to better clean the inner wall of the pipeline. In the using process of the utility model, the adhesive tape is coated with a coating,

compressed air is additionally provided for the bullet conveyor according to the needs, so that the small balls can be better conveyed to return to the magazine.

The device working process is as follows: firstly, an inlet and an outlet of a pipeline to be cleaned are connected and fixed with a conversion head. And starting the impact module, closing the valve III 13 and the valve IV 17, opening the valve I8, the valve II 9 and the exhaust electromagnetic valve 3, opening the discharge valve 6, and allowing the steel balls in the magazine to fall and to be carried by compressed air to enter the pipeline to be cleaned in an accelerated manner. A plurality of steel balls impact the blocked part of the pipeline at a high speed continuously, and blocked impurities can be dispersed quickly. The mixture of the steel balls and the impurities enters an automatic sorting machine, the steel balls and the impurities are separated, the impurities are continuously discharged, the steel balls are separated and enter a bullet conveyor, and the steel balls return to a magazine through a gas return pipeline under the carrying action of compressed air. And after the impact module operates for a period of time, closing the impact module and starting the dissolving module. The system closes the first valve 8, the second valve 9 and the exhaust electromagnetic valve 3, opens the third valve 13 and the fourth valve 17, opens the centrifugal pump, the cleaning liquid in the solution storage tank enters the pipeline to be cleaned through the centrifugal pump, under the action of fluid scouring and dissolving for a period of time, stubborn impurities on the inner wall of the pipeline to be cleaned are thoroughly washed, then the dissolving module is closed, and the third valve 13, the fourth valve 17 and the centrifugal pump are closed. The impurity liquid that washs out fully deposits in the thick liquid settling cask, and the top clear solution flows to the solution storage tank and recycles, and the impurity after the sediment is discharged through the bottom drain. .

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a device for clearing up pipeline impurity blocks which characterized in that: including compressed air inlet line (7), compressed air returns gas line (12), magazine (5), automatic separation machine (10), bullet conveyer (11), the both ends in treating clearance pipeline (1) are installed respectively to the one end of compressed air inlet line (7) and the one end of compressed air returns gas line (12), the other end of compressed air inlet line (7) has the air pump, the play bullet mouth of magazine (5) communicates in compressed air inlet line (7), magazine (5) are connected to the other end of compressed air returns gas line (12), automatic separation machine (10), bullet conveyer (11) set up on compressed air returns gas line (12).

2. The apparatus for clearing foreign material blockage of pipe according to claim 1, wherein: an inlet end conversion head (2) is arranged between the compressed air inlet pipeline (7) and the pipeline (1) to be cleaned, and an outlet end conversion head (4) is arranged between the compressed air return pipeline (12) and the pipeline (1) to be cleaned; a liquid inlet pipe is arranged on the inlet end conversion head (2), a liquid outlet pipe is arranged on the outlet end conversion head (4), a slurry sedimentation tank (14) is arranged at the other end of the liquid inlet pipe, a solution storage tank (15) is arranged at the other end of the liquid outlet pipe, and a circulating pipeline is arranged between the slurry sedimentation tank (14) and the solution storage tank (15).

3. The apparatus for clearing foreign material blockage of pipeline according to claim 2, wherein: the circulating pipeline is communicated with the position, close to the top, of the slurry settling tank (14), the arrangement height of the slurry settling tank (14) is higher than that of the solution storage tank (15), and the liquid outlet pipe is communicated with the position, close to the bottom, of the solution storage tank (15).

4. A device for clearing pipe blockage of impurities according to claim 2 or 3, characterized in that: a centrifugal pump (16) is arranged on the liquid outlet pipe.

5. The apparatus for clearing foreign material blockage of pipeline according to claim 2, wherein: and a discharge valve (6) is arranged at the bullet outlet of the bullet cabin (5).

6. The apparatus for clearing foreign material blockage of pipeline according to claim 2, wherein: a first valve (8) is arranged on a compressed air inlet pipeline (7) between the bullet outlet of the magazine (5) and the inlet end conversion head (2); a second valve (9) is arranged on a compressed air return pipeline (12) between the outlet end conversion head (4) and the automatic sorting machine (10); a third valve (13) is arranged on the liquid inlet pipe; and a valve IV (17) is arranged on the liquid outlet pipe.

7. The apparatus for clearing foreign material blockage of pipeline according to claim 2, wherein: an exhaust electromagnetic valve (3) is arranged on the inlet end conversion head (2).