Slurry pipeline ball pushing system and method

Abstract

The invention relates to a slurry pipeline ball pushing system and method. The pipeline cleaning device comprises a ball serving device, the ball serving device comprises a ball pushing device, a ventilation device and a cleaning device, the ball pushing device is used for pushing pipeline cleaning balls into a conveying pipeline, the ball pushing device and the conveying pipeline are in interference fit, the ventilation device pushes the pipeline cleaning balls to move in the conveying pipeline through compressed air, and the cleaning device is used for cleaning and blow-drying the pipeline cleaning balls; the closed ball changing device is detachably connected to the conveying pipeline; the detection device comprises a detection cavity, and when the pipeline cleaning balls enter the detection cavity, the detection device judges whether the pipeline cleaning balls are damaged or not in an air pressure detection mode; and the ball receiving device is used for receiving the pipeline cleaning balls, can reversely push the pipeline cleaning balls back to the ball serving device, and can push the pipeline cleaning balls into the closed ball changing device when detecting that the pipeline cleaning balls are damaged. The pipeline cleaning efficiency is improved, and the service life of the small pipeline cleaning balls is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to a slurry pipeline ball pushing system and method. Background Art

[0002] Currently, the pipeline ball pushing devices adopted in slurry (such as lithium battery slurry) conveying systems generally have the following problems: Existing ball pushing mechanisms mainly rely on the ball jamming situation and manual visual inspection to judge the damage degree of the pipeline cleaning balls, so as to decide whether to replace the pipeline cleaning balls. There is a lack of an automatic detection module for the state of the pipeline cleaning balls, resulting in untimely and inaccurate judgment, which in turn affects the pipe cleaning effect and system operation efficiency; After the pipeline cleaning balls complete the cleaning of the slurry residues inside the pipeline, an automatic cleaning device for the pipeline cleaning balls is usually not configured, resulting in the slurry attached to the surface of the pipeline cleaning balls not being removed in time, causing secondary pollution of the balls, affecting the reuse effect, and reducing the pipe cleaning efficiency and the service life of the pipeline cleaning balls; During the process of replacing the pipeline cleaning balls, the pipeline needs to be opened, which easily causes the slurry gas or volatile components in the pipeline to leak into the working environment, resulting in pollution of the working area, posing a threat to the health of operators, and there are relatively large potential safety hazards. Summary of the Invention

[0003] Therefore, the present invention provides a slurry pipeline ball pushing system and method, which can realize the functions of automatically detecting whether the pipeline cleaning balls are damaged, automatically cleaning the pipeline cleaning balls, and replacing the pipeline cleaning balls in a closed manner, improving the pipe cleaning efficiency and the service life of the pipeline cleaning balls, and solving the problem of pollution to the working area during ball replacement.

[0004] To solve the above technical problems, the present invention provides a slurry pipeline ball pushing system, including the following components arranged in sequence along the conveying pipeline: A ball sending device, including a ball pushing device, an air venting device, and a cleaning device. The ball pushing device is used to push the pipeline cleaning balls into the conveying pipeline and make the two in interference fit. The air venting device uses compressed air to push the pipeline cleaning balls to move along the conveying pipeline. The cleaning device is used to clean and dry the pipeline cleaning balls; A closed ball replacement device, detachably connected to the conveying pipeline. Both ends of the closed ball replacement device can be closed to achieve isolation from the conveying pipeline; A detection device, including a detection cavity. When the pipeline cleaning balls enter the detection cavity, the detection device uses a pneumatic detection method to judge whether the pipeline cleaning balls are damaged; The ball receiving device is used to receive the pipeline cleaning balls and can push them back reversely to the ball sending device, and can push them into the enclosed ball changing device when it detects that the pipeline cleaning balls are damaged.

[0005] In an embodiment of the present invention, the ball sending device includes a ball sending pipeline section, one end of the ball sending pipeline section is connected with a flange cover in an openable and closable manner, and the ball pushing device is installed on the flange cover.

[0006] In an embodiment of the present invention, the ball pushing device includes a ball pushing cylinder, the driving end of the ball pushing cylinder can extend into the ball sending pipeline section, and a hinge and a turnbuckle bolt are arranged between one end of the ball sending pipe body and the flange cover.

[0007] In an embodiment of the present invention, the ventilation device includes a first air inlet valve installed on the side wall of the ball sending pipeline section, the ball sending pipeline section is also provided with a second air inlet valve, the cleaning device includes a nozzle installed on the side wall of the ball sending pipeline section and a first waste liquid tank communicated with the ball sending pipeline section through a drain pipe, a first drain valve is arranged on the drain pipe, the nozzle is used for spraying cleaning liquid and cleaning the pipeline cleaning balls, and the pipeline cleaning balls can be dried by the air pressure of the second air inlet valve after being cleaned.

[0008] In an embodiment of the present invention, the enclosed ball changing device includes a ball changing pipeline section, the ball changing pipeline section is provided with a first valve and a second valve at both ends and a third valve on its side wall, the second valve is close to the detection device, and a first magnetic induction proximity switch for sensing the position of the pipeline cleaning balls is also arranged on the side wall of the ball changing pipeline section.

[0009] In an embodiment of the present invention, both the first valve and the second valve are hand valves or both are ball valves, and the third valve includes a connected first hand valve and a first ball valve.

[0010] In an embodiment of the present invention, the detection device includes a detection pipeline section, a fourth valve and a fifth valve are respectively arranged at both ends of the detection pipeline section, the fourth valve is close to the enclosed ball changing device, when the fourth valve and the fifth valve are closed, a detection cavity is formed in the detection pipeline section, a solenoid valve capable of communicating with the external atmosphere, a pressure regulating valve for introducing detection air pressure, a pressure sensor for detecting the pressure in the detection pipeline section and a pressure gauge for displaying the pressure value are respectively arranged on the side wall of the detection pipeline section; the pipeline cleaning ball includes a cylinder body and diaphragms connected to the cylinder body and in contact with the side wall of the detection pipeline section, an intermediate cavity is formed between the two diaphragms, and a left cavity and a right cavity are respectively formed between the two diaphragms and the detection cavity.

[0011] In an embodiment of the present invention, the detection pipeline section is further provided with a second magnetic induction proximity switch for sensing the position of the pipeline cleaning ball and a limiting device for restricting the movement of the pipeline cleaning ball. The limiting device includes a limiting cylinder and a limiting plate connected to the driving end of the limiting cylinder.

[0012] In an embodiment of the present invention, the ball receiving device includes a reducing pipe, a ball receiving pipeline section, and a second waste liquid tank connected in sequence. The reducing pipe is in a contracted shape along the direction close to the ball receiving pipeline section. The ball receiving pipeline section is provided with a third intake valve, and the inlet end of the second waste liquid tank is provided with a second drain valve.

[0013] The present invention also provides a method for pushing a ball in a slurry pipeline, using the slurry pipeline ball pushing system described above. The method includes: (1) Ball pushing step of the ball pushing device With the flange cover open, place the pipeline cleaning ball in the ball sending pipeline section, then close the flange cover. Use the ball pushing cylinder of the ball pushing device to push the pipeline cleaning ball into the conveying pipeline, so that the pipeline cleaning ball is in interference fit with the conveying pipeline. Pass compressed air into the conveying pipeline through the first intake valve of the air venting device, so that the pipeline cleaning ball moves to the position where the detection device is located; (2) Detection step of the detection device When the pipeline cleaning ball enters the detection pipeline section, it is limited by the limiting device. After the second magnetic induction proximity switch senses the pipeline cleaning ball, close the fourth valve and the fifth valve to form a detection cavity in the detection pipeline section. Open the solenoid valve to make the detection cavity communicate with the external atmosphere, then close the solenoid valve. Pass the detection air pressure into the intermediate cavity using the pressure regulating valve. The introduced detection pressure slowly increases from zero. When it is detected that the pressure value in the left cavity and / or the right cavity is not 0, and obtain the pressure value in the intermediate cavity; In response to the pressure value being lower than the preset damage air pressure value, it is determined that the pipeline cleaning ball is damaged, and then the ball replacement step is executed; In response to the pressure value being higher than or equal to the preset damage air pressure value, it is determined that the pipeline cleaning ball is not damaged; open the fourth valve and the fifth valve, and the air venting device continues to pass compressed air to push the pipeline cleaning ball into the main pipeline of the conveying pipeline for pipeline cleaning operation; (3) Ball replacement step When it is detected that the pipeline cleaning ball is damaged, open the fourth valve, the fifth valve, and the first ball valve, and close the second valve. Introduce compressed air through the ball receiving device to push the damaged pipeline cleaning ball into the ball changing pipeline section of the enclosed ball changing device. After the first magnetic induction proximity switch senses the pipeline cleaning ball, close the second valve (17) and the first manual valve, remove the enclosed ball changing device, and replace the pipeline cleaning ball; (4) Ball receiving step After the pipeline cleaning ball completes the cleaning of the pipeline, it enters the ball receiving device; when it is sensed that the pipeline cleaning ball is at the reducing pipe position, the first air inlet valve stops introducing compressed gas; (5) Reverse ball pushing step Open the third air inlet valve to push the pipeline cleaning ball back to the ball sending device in the reverse direction; (6) Cleaning step After the pipeline cleaning ball is pushed back to the ball sending device through the ball receiving device, use the cleaning device to automatically clean and dry the pipeline cleaning ball; (7) Re-detection step Push the dried pipeline cleaning ball back into the detection pipeline section of the detection device, and repeat the detection step of the detection device.

[0014] The above technical solution of the present invention has the following advantages compared with the prior art: For the slurry pipeline ball pushing system and method of the present invention, the system is provided with a detection device, including a detection cavity, a pressure regulating valve, a pressure sensor, and a limiting device capable of realizing the limiting function, so as to judge whether the pipeline cleaning ball is damaged by using the air pressure detection method. Compared with the traditional method that relies on the stuck state or manual visual inspection to judge damage, the automatic detection has the advantages of timely response, high accuracy, good repeatability, etc., can effectively reduce missed detection and misjudgment, and greatly improve the operation efficiency and safety of the system.

[0015] The cleaning device of the present invention integrates a nozzle and a drain pipe, and cooperates with the first waste liquid tank, the first drain valve, and the second air inlet valve, and can automatically complete cleaning and drying after the pipeline cleaning ball leaves the main conveying pipeline, significantly reducing the slurry residue on the surface of the pipeline cleaning ball, avoiding secondary pollution, improving the cleaning efficiency, and prolonging the service life of the cleaning ball.

[0016] When the system of the present invention detects that the cleaning ball is damaged, the enclosed ball changing device can completely isolate the ball changing pipeline section through the valve, so that the main conveying pipeline forms an effective seal with the external environment. Since the replacement operation is carried out in an isolated state, slurry gas or volatile components will not leak during the whole process, eliminating the potential environmental pollution hazard caused by the open pipeline, and effectively protecting the safety and health of the operators.

[0017] The ball - sending device of the present invention uses a ball - pushing cylinder to keep the pipeline cleaning ball in interference fit with the conveying pipeline, so that when the ball is pushed by compressed air, it can produce sufficient friction and scraping effect on the pipe wall. During the cleaning process, the ball can fully clean the slurry residue on the inner wall of the pipeline, improve the cleaning efficiency and cleanliness, and reduce the workload of subsequent pipeline maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention easier to be clearly understood, the following further details the present invention according to specific embodiments of the present invention and in combination with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the ball - pushing system for the slurry pipeline of the present invention.

[0020] Figure 2 It is the front view of the ball - sending device of the present invention.

[0021] Figure 3 It is the side view of the ball - sending device of the present invention.

[0022] Figure 4 It is the front view of the closed - type ball - changing device of the present invention.

[0023] Figure 5 It is the front view of the detection device of the present invention.

[0024] Figure 6 It is the top view of the detection device of the present invention.

[0025] Figure 7 It is the front view of the ball - receiving device of the present invention.

[0026] Figure 8 It is a schematic diagram when the detection device of the present invention is detecting.

[0027] Figure 9 It is a flowchart of the ball - pushing method for the slurry pipeline of the present invention.

[0028] Explanation of the reference numerals in the drawings of the specification: 100, Pipeline cleaning ball; 110, Diaphragm; 120, Cylinder; 210, Left cavity; 220, Middle cavity; 230, Right cavity; 1, Ball serving device; 2, Cleaning device; 3, Closed ball changing device; 4, Detection device; 5, Ball receiving device; 6, Ball pushing cylinder; 7a, First intake valve; 8, Nozzle; 9, First drain valve; 10, First waste liquid tank; 11, Hinge; 12, Eye bolt; 13, First valve; 14, First manual valve; 15, First ball valve; 16, First magnetic induction proximity switch; 17, Second valve; 18, Fourth valve; 19, Second magnetic induction proximity switch; 20, Pressure sensor; 21, Limiting device; 22, Fifth valve; 23, Solenoid valve; 24, Pressure regulating valve, 25, Pressure gauge; 26, Reducing pipe; 27, Third intake valve; 28, Third intake valve; 29, Pressure detection sensor; 30, Second drain valve; 31, Second waste liquid tank; 32, Isolation ball valve; 1a, Ball serving pipeline section; 1b, Ball pushing device; 1c, Ventilation device; 3a, Ball changing pipeline section; 4a, Detection pipeline section; 5a, Ball receiving pipeline section. Detailed implementation manners

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments cited are not intended to limit the present invention.

[0030] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, rather than indicating or implying that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0031] In the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and "greater than", "less than", "exceeding", etc. are understood not to include the present number; "above", "below", "within", etc. are understood to include the present number. In the description of the present invention, if "first" and "second" are described, they are only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0032] In the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, or integrally formed; they can be mechanically connected, or electrically connected or capable of communicating with each other; they can be the communication inside two components or the interaction relationship between two components. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0033] Example 1 Reference Figure 1 As shown, a ball-pushing system for a slurry pipeline includes the following components arranged in sequence along the conveying pipeline: A ball-sending device 1, including a ball-pushing device 1b, an air-venting device 1c, and a cleaning device 2. The ball-pushing device 1b is used to push a pipeline cleaning ball 100 into the conveying pipeline and make the two in interference fit. The air-venting device 1c uses compressed air to push the pipeline cleaning ball 100 to move along the conveying pipeline. The cleaning device 2 is used to clean and dry the pipeline cleaning ball 100; A closed ball-changing device 3, detachably connected to the conveying pipeline. Both ends of the closed ball-changing device 3 can be closed to isolate it from the conveying pipeline; A detection device 4, including a detection cavity. When the pipeline cleaning ball 100 enters the detection cavity, the detection device 4 uses a pneumatic detection method to determine whether the pipeline cleaning ball 100 is damaged; A ball-receiving device 5, used to receive the pipeline cleaning ball 100 and be able to push it back to the ball-sending device 1 in the reverse direction, and be able to push it into the closed ball-changing device 3 when it detects that the pipeline cleaning ball 100 is damaged.

[0034] Specifically, referring to Figure 3 As shown, the ball-sending device 1 includes a ball-sending pipeline section 1a. One end of the ball-sending pipeline section 1a is connected with a flange cover in an openable and closable manner, and the ball-pushing device 1b is installed on the flange cover.

[0035] Specifically, referring to Figure 2 As shown, the ball-pushing device 1b includes a ball-pushing cylinder 6. The driving end of the ball-pushing cylinder 6 can extend into the ball-sending pipeline section 1a. A hinge 11 and a turnbuckle bolt 12 are arranged between one end of the ball-sending pipe body and the flange cover.

[0036] Through the above settings, in the state where the flange cover is open, the pipeline cleaning ball 100 is placed in the ball-sending pipeline section 1a, and then the flange cover is closed. The ball-pushing cylinder 6 of the ball-pushing device 1b is used to push the pipeline cleaning ball 100 into the conveying pipeline, so that the pipeline cleaning ball 100 is in interference fit with the conveying pipeline. The ball-pushing cylinder 6 is used to keep the pipeline cleaning ball 100 in interference fit with the conveying pipeline, so that the ball can generate sufficient friction and scraping effect on the pipe wall when being pushed by compressed air. During the cleaning process, the ball can fully clean the slurry residue on the inner wall of the pipeline, improve the cleaning efficiency and cleanliness, and reduce the workload of subsequent pipeline maintenance.

[0037] Specifically, the ventilation device 1c includes a first intake valve 7a installed on the side wall of the ball serving pipeline section 1a. The ball serving pipeline section 1a is also provided with a second intake valve 7b. The cleaning device 2 includes a nozzle 8 installed on the side wall of the ball serving pipeline section 1a and a first waste liquid tank 10 connected to the ball serving pipeline section 1a through a drain pipe. A first drain valve 9 is provided on the drain pipe. The nozzle 8 is used to spray cleaning liquid and clean the pipeline cleaning ball 100. After being cleaned, the pipeline cleaning ball 100 can be dried by the air pressure of the second intake valve 7b. The first intake valve 7a, the second intake valve 7b, and the first drain valve 9 are all ball valves.

[0038] By integrating the nozzle 8 and the drain pipe, cooperating with the first waste liquid tank 10 and the first drain valve 9, the cleaning and drying can be automatically completed after the pipeline cleaning ball 100 leaves the main conveying pipeline, significantly reducing the slurry residue on the surface of the pipeline cleaning ball 100, avoiding secondary pollution, improving the cleaning efficiency, and prolonging the service life of the cleaning ball.

[0039] Specifically, referring to Figure 4 As shown, the enclosed ball changing device 3 includes a ball changing pipeline section 3a. The ball changing pipeline section 3a is provided with a first valve 13 and a second valve 17 at both ends and a third valve on its side wall. The second valve 17 is close to the detection device 4. A first magnetic induction proximity switch 16 for sensing the position of the pipeline cleaning ball 100 is also provided on the side wall of the ball changing pipeline section 3a.

[0040] In one embodiment, both the first valve 13 and the second valve 17 are hand valves or both are ball valves. The third valve includes a connected first hand valve 14 and a first ball valve 15.

[0041] In addition, the ball changing pipeline section 3a is connected to the remaining pipelines by means of flanges, bolts, etc., which is convenient for disassembly. An isolation ball valve 32 is also provided between the ball serving pipeline section 1a and the ball changing pipeline section 3a. When cleaning the ball, the isolation ball valve 32 is closed to prevent liquid from entering the rear pipeline.

[0042] It should be noted that when it is detected that the pipeline cleaning ball 100 is damaged, the operator replaces it. Open the fourth valve 18, the fifth valve 22, and the first ball valve 15, close the second valve 13, and introduce compressed air from the ball receiving device 5 to push the damaged pipeline cleaning ball 100 into the enclosed ball changing device 3. When the first magnetic induction proximity switch 16 senses the pipeline cleaning ball 100, close the second valve 17 and the first hand valve 14, and remove the ball changing device. Manually transport the enclosed ball changing device 3 to a special treatment location for replacing the ball. The enclosed ball changing device 3 is subsequently placed at the special treatment location for replacing the pipeline cleaning ball 100, so as to achieve the effect of not polluting the working area.

[0043] Preferably, both the first valve 13 and the second valve 17 are ball valves, which can be connected to the PLC control system (the other ball valves are also connected thereto). Compared with using hand valves, the efficiency can be improved, and the operator only needs to operate once to remove the enclosed ball-changing device 3.

[0044] When the system detects that the cleaning ball is damaged, the enclosed ball-changing device 3 can completely isolate the ball-changing pipeline section 3a through the valve, so that the main conveying pipeline forms an effective seal with the external environment. Since the replacement operation is carried out in an isolated state, slurry gas or volatile components will not leak during the whole process, eliminating the potential environmental pollution hazard caused by the open pipeline and effectively ensuring the safety and health of the operators.

[0045] Specifically, referring to Figure 5 、 Figure 6 As shown, the detection device 4 includes a detection pipeline section 4a. The two ends of the detection pipeline section 4a are respectively provided with a fourth valve 18 and a fifth valve 22. The fourth valve 18 is close to the enclosed ball-changing device 3. When the fourth valve 18 and the fifth valve 22 are closed, a detection cavity is formed in the detection pipeline section 4a. The side wall of the detection pipeline section 4a is respectively provided with a solenoid valve 23 that can communicate with the external atmosphere, a pressure regulating valve 24 for introducing detection air pressure, a pressure sensor 20 for detecting the pressure in the detection pipeline section 4a, and a pressure gauge for displaying the pressure value. Among them, both the fourth valve 18 and the fifth valve 22 are ball valves.

[0046] Referring to Figure 8 As shown, the pipeline cleaning ball 100 includes a cylinder 120 and a (non-metallic) diaphragm 110 connected to the cylinder 120 and in contact with the side wall of the detection pipeline section 4a. An intermediate cavity 220 is formed between the two diaphragms 110, and a left cavity 210 and a right cavity 230 are respectively formed between the two diaphragms 110 and the detection cavity. There are three pressure sensors 20. When the pipeline cleaning ball 100 reaches a predetermined position, the pressures in the left cavity 210, the intermediate cavity 220, and the right cavity 230 can be detected respectively.

[0047] It should be noted that since the inside of the conveying pipeline is in a sealed state, after the pipeline cleaning ball 100 is pushed to the specified detection position by air pressure, air pressure detection is carried out. The integrity of the diaphragm 110 of the pipeline cleaning ball is judged by changing the magnitude of the air pressure. Both the fourth valve 18 and the fifth valve 22 are ball valves.

[0048] Specifically, the detection pipeline section 4a is further provided with a second magnetic induction proximity switch 19 for sensing the position of the pipeline cleaning ball 100 and a limiting device 21 for restricting the movement of the pipeline cleaning ball 100. The limiting device 21 includes a limiting cylinder and a limiting plate connected to the driving end of the limiting cylinder.

[0049] Introduce the detection air pressure into the intermediate chamber 220 by using the pressure regulating valve 24, and obtain the pressure value in the intermediate chamber 220; In response to the pressure value being lower than the preset damage air pressure value, it is determined that the diaphragm 110 of the pipeline cleaning ball 100 is damaged, and then it is replaced; In response to the pressure value being higher than or equal to the preset damage air pressure value, it is determined that the pipeline cleaning ball 100 is not damaged; open the fourth valve 18 and the fifth valve 22, and the air supply device 1c continues to introduce compressed air to push the pipeline cleaning ball 100 into the main pipeline of the conveying pipeline to perform pipeline cleaning operations.

[0050] It can be understood that if the diaphragms of the pipeline cleaning ball 100 are intact, the sealing performance of the intermediate chamber 220 formed by the two diaphragms 110 is relatively good and can withstand a certain pressure, while there is no pressure on the left and right outer sides of the pipeline cleaning ball 100. If the diaphragm is damaged, the sealing performance of the intermediate chamber 220 decreases, and the gas will reach the left chamber 210 and / or the right chamber 230, and the pressure in the left chamber 210 and / or the right chamber 230 increases, and the judgment is made according to the pressure value in the intermediate chamber 220 at this time.

[0051] The detection device 4 uses the air pressure detection method to judge whether the pipeline cleaning ball 100 is damaged. Compared with the traditional method that relies on the stuck state or manual visual inspection to judge damage, the automatic detection has the advantages of timely response, high accuracy, good repeatability, etc., can effectively reduce missed inspections and misjudgments, and greatly improve the operation efficiency and safety of the system.

[0052] Specifically, refer to Figure 7 As shown, the ball receiving device 5 includes a reducing pipe 26, a ball receiving pipeline section 5a and a second waste liquid tank 31 connected in sequence. The reducing pipe 26 is in a shrinking shape along the direction close to the ball receiving pipeline section 5a. The ball receiving pipeline section 5a is provided with a third intake valve 28 and a fourth intake valve 27. A pressure detection sensor 29 is arranged on the third intake valve 28. The inlet end of the second waste liquid tank 31 is provided with a second drain valve 30. The third intake valve 28 and the second drain valve 30 adopt ball valves.

[0053] Embodiment 2 Refer to Figure 9 As shown, this embodiment provides a method for pushing a ball in a slurry pipeline, using the slurry pipeline ball pushing system described in Embodiment 1. The method includes: (1) The ball sending step of the ball pushing device 1b With the flange cover in the open state, place the pipeline cleaning ball 100 in the ball sending pipeline section 1a, then close the flange cover, and use the ball pushing cylinder 6 of the ball pushing device 1b to push the pipeline cleaning ball 100 into the conveying pipeline, so that the pipeline cleaning ball 100 is in interference fit with the conveying pipeline. Pass compressed air into the conveying pipeline through the first air inlet valve 7a of the air venting device 1c, so that the pipeline cleaning ball 100 moves to the position where the detection device 4 is located; (2) Detection device 4 detection step When the pipeline cleaning ball 100 enters the detection pipeline section 4a, it is limited by the limiting device 21. After the second magnetic induction proximity switch 19 senses the pipeline cleaning ball 100, close the fourth valve 18 and the fifth valve 22 to form a detection cavity in the detection pipeline section 4a. Open the solenoid valve 23 to make the detection cavity communicate with the external atmosphere, and then close the solenoid valve 23. Pass the detection air pressure into the intermediate cavity 220 by using the pressure regulating valve 24. The passed detection pressure starts to increase slowly from zero. When it is detected that the pressure value of the left cavity 210 and / or the right cavity 230 is not 0, and obtain the pressure value in the intermediate cavity 220; In response to the pressure value being lower than the preset damaged air pressure value, it is determined that the pipeline cleaning ball 100 is damaged, and then perform the ball replacement step; In response to the pressure value being higher than or equal to the preset damaged air pressure value, it is determined that the pipeline cleaning ball 100 is not damaged; open the fourth valve 18 and the fifth valve 22, and the air venting device 1c continues to pass compressed air to push the pipeline cleaning ball 100 into the main pipeline of the conveying pipeline to perform the pipeline cleaning operation; (3)Ball replacement step When it is detected that the pipeline cleaning ball 100 is damaged, open the fourth valve 18, the fifth valve 22, and the first ball valve 15, and close the second valve 13. Pass compressed air through the ball receiving device 5 to push the damaged pipeline cleaning ball 100 into the ball replacement pipeline section 3a of the closed ball replacement device 3. After the first magnetic induction proximity switch 16 senses the pipeline cleaning ball 100, close the second valve 17 and the first hand valve 14, remove the closed ball replacement device 3, and perform the replacement of the pipeline cleaning ball 100; (4)Ball receiving step After the pipeline cleaning ball 100 completes the cleaning of the pipeline, it enters the ball receiving device 5; when it is sensed that the pipeline cleaning ball 100 is at the reducing pipe 26 position, the first air inlet valve 7a stops passing compressed gas; (5)Reverse ball pushing step Open the third air inlet valve 28 to push the pipeline cleaning ball 100 back to the ball sending device 1 in the reverse direction; (6)Cleaning step After the pipeline cleaning ball 100 is pushed back to the ball sending device 1 by the ball receiving device 5, the cleaning device 2 is used to automatically clean and dry the pipeline cleaning ball 100; at this time, the nozzle 8 and the drain pipe corresponding to the first waste liquid tank 10 are opened, the cleaning liquid is sprayed onto the pipeline cleaning ball 100 and flows into the first waste liquid tank 10 through the drain pipe; after the nozzle 8 is closed, the first drain valve 9 is opened to introduce compressed air to dry the pipeline cleaning ball 100; (7) Re-detection step The dried pipeline cleaning ball 100 is pushed back into the detection pipeline section 4a of the detection device 4, and the detection steps of the detection device 4 are repeated.

[0054] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and are not limitations. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A slurry pipeline ball pushing system, characterized in that Including the following components arranged in sequence along the conveying pipeline: A ball sending device (1), including a ball pushing device (1b), a ventilation device (1c) and a cleaning device (2). The ball pushing device (1b) is used to push the pipeline cleaning ball (100) into the conveying pipeline and make the two in interference fit. The ventilation device (1c) uses compressed air to push the pipeline cleaning ball (100) to move along the conveying pipeline. The cleaning device (2) is used to clean and dry the pipeline cleaning ball (100); A closed ball changing device (3), detachably connected to the conveying pipeline. Both ends of the closed ball changing device (3) can be closed to isolate it from the conveying pipeline; A detection device (4), including a detection cavity. When the pipeline cleaning ball (100) enters the detection cavity, the detection device (4) uses a pneumatic detection method to determine whether the pipeline cleaning ball (100) is damaged; A ball receiving device (5), used to receive the pipeline cleaning ball (100) and be able to push it back to the ball sending device (1) in the reverse direction, and be able to push it into the closed ball changing device (3) when it is detected that the pipeline cleaning ball (100) is damaged.

2. The slurry pipeline ball pushing system according to claim 1, wherein The ball sending device (1) includes a ball sending pipeline section (1a). One end of the ball sending pipeline section (1a) is connected with a flange cover in an openable and closable manner, and the ball pushing device (1b) is installed on the flange cover.

3. A slurry pipeline ball pushing system according to claim 2, characterized in that, The ball pushing device (1b) includes a ball pushing cylinder (6). The driving end of the ball pushing cylinder (6) can extend into the ball sending pipeline section (1a). A hinge (11) and a loose joint bolt (12) are arranged between one end of the ball sending pipe body and the flange cover.

4. A slurry pipeline ball pushing system according to claim 2, characterized in that, The ventilation device (1c) includes a first intake valve (7a) installed on the side wall of the ball sending pipeline section (1a). The ball sending pipeline section (1a) is also provided with a second intake valve (7b). The cleaning device (2) includes a nozzle (8) installed on the side wall of the ball sending pipeline section (1a) and a first waste liquid tank (10) communicated with the ball sending pipeline section (1a) through a drain pipe. A first drain valve (9) is arranged on the drain pipe. The nozzle (8) is used to spray cleaning liquid and clean the pipeline cleaning ball (100). After cleaning, the pipeline cleaning ball (100) can be dried by the air pressure of the second intake valve (7b).

5. A slurry pipeline ball pushing system and method according to claim 1, characterized in that, The closed ball changing device (3) includes a ball changing pipeline section (3a). The ball changing pipeline section (3a) is provided with a first valve (13) and a second valve (17) at both ends and a third valve on its side wall. The second valve (17) is close to the detection device (4). A first magnetic induction proximity switch (16) for sensing the position of the pipeline cleaning ball (100) is also arranged on the side wall of the ball changing pipeline section (3a).

6. The ball-pushing system for a slurry pipeline according to claim 5, wherein, Both the first valve (13) and the second valve (17) are hand valves or both are ball valves. The third valve includes a connected first hand valve (14) and a first ball valve (15).

7. A slurry pipeline ball pushing system according to claim 1, wherein, The detection device (4) includes a detection pipeline section (4a), with a fourth valve (18) and a fifth valve (22) respectively arranged at both ends of the detection pipeline section (4a). The fourth valve (18) is close to the closed ball-changing device (3). When the fourth valve (18) and the fifth valve (22) are closed, a detection cavity is formed within the detection pipeline section (4a). On the side wall of the detection pipeline section (4a), there are respectively arranged a solenoid valve (23) capable of communicating with the external atmosphere, a pressure regulating valve (24) for introducing detection air pressure, a pressure sensor (20) for detecting the pressure within the detection pipeline section (4a), and a pressure gauge for displaying the pressure value; The pipeline cleaning ball (100) includes a cylinder body (120) and a diaphragm (110) connected to the cylinder body (120) and in contact with the side wall of the detection pipeline section (4a). An intermediate cavity (220) is formed between the two diaphragms (110), and a left cavity (210) and a right cavity (230) are respectively formed between the two diaphragms (110) and the detection cavity.

8. A slurry pipeline ball pushing system according to claim 1, characterized in that, The detection pipeline section (4a) is further provided with a second magnetic induction proximity switch (19) for sensing the position of the pipeline cleaning ball (100) and a limiting device (21) for restricting the movement of the pipeline cleaning ball (100). The limiting device includes a limiting cylinder and a limiting plate connected to the driving end of the limiting cylinder.

9. A slurry pipeline ball pushing system according to claim 1, characterized in that, The ball receiving device (5) includes a reducing pipe (26), a ball receiving pipeline section (5a), and a second waste liquid tank (31) connected in sequence. The reducing pipe (26) is in a shrinking shape along the direction close to the ball receiving pipeline section (5a). The ball receiving pipeline section (5a) is provided with a third air inlet valve (28), and the inlet end of the second waste liquid tank (31) is provided with a second liquid discharge valve (30).

10. A method for pushing a ball in a slurry pipeline, characterized in that, Using a slurry pipeline ball pushing system according to any one of claims 1 - 9, the method includes: (1) The ball sending step of the ball pushing device (1b) In the state where the flange cover is open, place the pipeline cleaning ball (100) into the ball sending pipeline section (1a), then close the flange cover. Use the ball pushing cylinder (6) of the ball pushing device (1b) to push the pipeline cleaning ball (100) into the conveying pipeline, so that the pipeline cleaning ball (100) has an interference fit with the conveying pipeline. Through the first air inlet valve (7a) of the air venting device (1c), introduce compressed air into the conveying pipeline to make the pipeline cleaning ball (100) move to the position where the detection device (4) is located; (2) The detection step of the detection device (4) After the pipeline cleaning ball (100) enters the detection pipeline section (4a), it is limited by the limiting device (21). After the second magnetic induction proximity switch (19) senses the pipeline cleaning ball (100), the fourth valve (18) and the fifth valve (22) are closed to form a detection cavity in the detection pipeline section (4a). The solenoid valve (23) is opened to make the detection cavity communicate with the external atmosphere, and then the solenoid valve (23) is closed. The pressure regulating valve (24) is used to introduce a detection air pressure into the intermediate cavity (220). The introduced detection pressure slowly increases from zero. When it is detected that the pressure value in the left cavity (210) and / or the right cavity (230) is not 0, the pressure value in the intermediate cavity (220) is obtained; In response to the pressure value being lower than the preset damaged air pressure value, it is determined that the pipeline cleaning ball (100) is damaged, and then the ball replacement step is executed; In response to the pressure value being higher than or equal to the preset damaged air pressure value, it is determined that the pipeline cleaning ball (100) is not damaged; the fourth valve (18) and the fifth valve (22) are opened, and the air supply device (1c) continues to introduce compressed air to push the pipeline cleaning ball (100) into the main pipeline of the conveying pipeline to perform the pipeline cleaning operation; (3) Ball replacement step When it is detected that the pipeline cleaning ball (100) is damaged, the fourth valve (18), the fifth valve (22), and the first ball valve (15) are opened, and the second valve (13) is closed. Compressed air is introduced through the ball receiving device (5) to push the damaged pipeline cleaning ball (100) into the ball replacement pipeline section (3a) of the closed ball replacement device (3). After the first magnetic induction proximity switch (16) senses the pipeline cleaning ball (100), the second valve (17) and the first manual valve (14) are closed, and the closed ball replacement device (3) is removed to replace the pipeline cleaning ball (100); (4) Ball receiving step After the pipeline cleaning ball (100) finishes cleaning the pipeline, it enters the ball receiving device (5); when it is sensed that the pipeline cleaning ball (100) is at the position of the reduced diameter pipe (26), the first intake valve (7a) stops introducing compressed gas; (5) Reverse ball pushing step The third intake valve (28) is opened to push the pipeline cleaning ball (100) back to the ball sending device (1) in the reverse direction; (6) Cleaning step After the pipeline cleaning ball (100) is pushed back to the ball sending device (1) through the ball receiving device (5), the cleaning device (2) is used to automatically clean and dry the pipeline cleaning ball (100); (7) Re-detection step The dried pipeline cleaning ball (100) is pushed back into the detection pipeline section (4a) of the detection device (4) again, and the detection steps of the detection device (4) are repeated.

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