Triple integrated conveying device for solid waste refined slurry and using method of triple integrated conveying device

Abstract

The invention discloses a solid waste refined slurry triple integrated conveying device and a using method thereof, and relates to the field of conveying devices. A solid waste refined slurry triple integrated conveying device comprises feeding pipes and further comprises a first feeding pipe and a third feeding pipe which are communicated with the two feeding pipes respectively, and a second connecting pipe is communicated between the first feeding pipe and the third feeding pipe; the first feeding pipe is communicated with a first discharging pipe, the third feeding pipe is communicated with a third discharging pipe, and a transverse connecting pipe is communicated between the third discharging pipe and the first discharging pipe; the first discharging pipe is communicated with a second output pipe, and the third discharging pipe is communicated with a first output pipe; the first feeding pipe is communicated with a first connecting pipe, and the first connecting pipe is communicated with a second feeding pipe; the reliability of the system is improved through multi-pump cooperation and pipeline connection design, efficient pipeline cleaning is achieved through the water return pipe and the like, flexible adjustment can be achieved through the flow meter and the ball valve, the pipeline pressure can be maintained to be stable, stable production operation is guaranteed, and practicability is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of solid waste slurry conveying devices, and specifically relates to a triple-integrated conveying device for refined solid waste slurry and a using method thereof. Background Art

[0002] With the development of industrialization and urbanization, the amount of solid waste that needs to be treated without waste is increasing continuously. These solid wastes have complex and diverse compositions, among which there are many toxic and harmful substances that are difficult to degrade naturally, posing a serious threat to the ecological environment. Traditional landfill and incineration treatment methods not only occupy a large amount of land resources, but also may cause environmental risks such as soil pollution, groundwater pollution, and air pollution. In this situation, the resource utilization of solid waste has become the focus of the industry. It is precisely in this context that the technology of refined solid waste slurry has emerged. Through collaborative preparation means, this technology converts solid waste into resources with utilization value, realizing the reduction, harmless treatment, and resource utilization of solid waste.

[0003] During the process of treating solid waste, the solid waste is first crushed and ground and matched with corresponding chemical agents to form solid waste slurry, and then it is transported to a cement high-temperature kiln by long-distance sealed sputtering for resource harmless treatment. When the solid waste slurry is sputter-transported, pipelines are usually used for sealed transmission. Such transportation devices need to operate for a long time. Since the solid waste slurry contains substances that are prone to generate a small amount of gas, the conveying device needs to have the functions of pipeline pressure detection and regular exhaust. The original solid waste conveying device does not have these functions; in addition, some solid waste impurities will cause wear and corrosion to the transmission equipment. Especially, the sputter transmission pump body has high requirements for material and performance. Once it is damaged, the slurry conveying will be interrupted, resulting in the stop of solid waste treatment, seriously affecting the production efficiency of solid waste resource utilization. Based on this, the present invention is proposed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an integrated conveying device that can overcome or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A triple-integrated conveying device for refined solid waste slurry, including a feeding pipe connected to a slurry storage bin, and further including: a first feeding pipe and a third feeding pipe are respectively connected to the two feeding pipes, and a second connecting pipe is connected between the first feeding pipe and the third feeding pipe; the first feeding pipe is connected to a first discharging pipe, the third feeding pipe is connected to a third discharging pipe, and a transverse connecting pipe is connected between the third discharging pipe and the first discharging pipe; the first discharging pipe is connected to a second output pipe, and the third discharging pipe is connected to a first output pipe; a first connecting pipe is connected to the first feeding pipe, a second feeding pipe is connected to the first connecting pipe, the second feeding pipe is connected to a delivery pump, a second discharging pipe is connected to the transverse connecting pipe, and the second discharging pipe is connected to the second feeding pipe.

[0006] Preferably, ball valves are provided on the first feeding pipe, the second feeding pipe, and the third feeding pipe. When the delivery pump fails, the ball valves at the corresponding positions are closed, and the slurry reaches other pipes via the first connecting pipe and the second connecting pipe.

[0007] Furthermore, check valves and ball valves are provided on the first discharging pipe, the second discharging pipe, and the third discharging pipe. The check valves are used to ensure the one-way flow of the slurry in the pipeline.

[0008] Preferably, water return pipes are connected to both the first discharging pipe and the third discharging pipe. A transition pipe is connected between the water return pipes and the first feeding pipe and the third feeding pipe. When the first output pipe and the second output pipe are in a closed state, a circulating loop is formed inside the connected pipes through the water return pipes.

[0009] Furthermore, a water inlet pipe is connected to the first feeding pipe and the third feeding pipe. A ball valve is provided on the water inlet pipe. After the first output pipe and the second output pipe are closed, clean water is injected through the water inlet pipe to flush and clean the inside of the pipeline.

[0010] Furthermore, a pressure reducing valve and a stop valve are provided on the water return pipe. The pressure reducing valve is used to ensure the stable pressure inside the pipeline.

[0011] Furthermore, electric gate valves are provided on the first discharging pipe and the third discharging pipe. The electric gate valves are located between the water return pipes and the first output pipe and the second output pipe.

[0012] Preferably, ball valves and flow meters are provided at the connection positions of the first discharging pipe and the third discharging pipe with the first output pipe and the second output pipe.

[0013] Preferably, Y-type filters are provided on the first feeding pipe and the third feeding pipe. The Y-type filters are located between the second connecting pipe and the water inlet pipe.

[0014] A method for using a three - in - one conveying device for refined solid waste slurry mainly includes the following steps:

[0015] S1. Control the electric gate valve to open and start the conveying pump to extract the slurry;

[0016] S2. If the conveying pump is damaged, close the ball valve on the corresponding pipeline;

[0017] S3. After use, close the electric gate valve, open the water inlet pipe to inject clean water, and start the conveying pump to let the clean water circulate and flush in the pipeline;

[0018] S4. Open the discharge hole of the Y - type filter to discharge sewage and impurities.

[0019] After adopting the above - mentioned technical solution, the present invention has the following beneficial effects compared with the prior art:

[0020] 1. By setting multiple conveying pumps, multiple feed pipes and discharge pipes are connected to the input end and output end of the conveying pump, and different pipelines are connected together by setting the first connecting pipe, the second connecting pipe and the horizontal connecting pipe, so as to jointly suck and convey the solid waste slurry by multiple conveying pumps. If one of the conveying pumps fails, it will not affect the normal operation of other conveying pumps, ensuring the reliability and stability of the whole solid waste slurry conveying system device, and providing a strong guarantee for the smooth progress of the production process.

[0021] 2. By setting the return water pipe and the transition pipe, a complete water circuit is formed in the pipeline. By setting the water inlet pipe and the Y - type filter, water source can be injected into the first feed pipe and the second feed pipe. Under the action of the conveying pump, the water source will be driven to circulate and flush in the circuit, so as to achieve the effect of cleaning the pipeline.

[0022] 3. By setting flow meters and ball valves at the connection positions of the first discharge pipe and the third discharge pipe with the first output pipe and the second output pipe, when the conveying pump needs to be repaired or the transmission speed does not need to be too fast, the ball valve on one side of the flow meter can be closed to reduce and even terminate the conveying volume of the output pipeline to which the closed ball valve belongs, so as to isolate and repair the corresponding conveying pump and ensure that the conveying pressure in other pipelines remains stable and normal without being affected.

[0023] The parts not involved in this device are the same as or can be realized by the prior art. The present invention improves the system reliability through multi - pump coordination and pipeline connection design, realizes efficient pipeline cleaning by using the return water pipe, etc., and can also flexibly adjust by means of flow meters and ball valves to maintain the pipeline pressure stable, ensuring the stable operation of production, and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the drawings:

[0025] Figure 1 Schematic diagram of the three-in-one conveying device for refined solid waste slurry proposed by the present invention Figure 1 ;

[0026] Figure 2 Schematic diagram of the three-in-one conveying device for refined solid waste slurry proposed by the present invention Figure 2 ;

[0027] Figure 3 Side view of the three-in-one conveying device for refined solid waste slurry proposed by the present invention;

[0028] Figure 4 Schematic diagram of the pipeline structure of the discharging part in the three-in-one conveying device for refined solid waste slurry proposed by the present invention;

[0029] Figure 5 Schematic diagram of the pipeline structure of the feeding part in the three-in-one conveying device for refined solid waste slurry proposed by the present invention;

[0030] Figure 6 The three-in-one conveying device for refined solid waste slurry proposed by the present invention Figure 3 Schematic diagram of the structure at position A therein;

[0031] Figure 7 The three-in-one conveying device for refined solid waste slurry proposed by the present invention Figure 1 Schematic diagram of the structure at position B therein;

[0032] Figure 8 The three-in-one conveying device for refined solid waste slurry proposed by the present invention Figure 2 Schematic diagram of the structure at position C therein.

[0033] In the figure: 1, the first discharge pipe; 12, the second discharge pipe; 13, the third discharge pipe; 14, the horizontal connecting pipe; 21, the first feed pipe; 22, the second feed pipe; 23, the third feed pipe; 24, the first connecting pipe; 25, the second connecting pipe; 26, the Y-type filter; 27, the return water pipe; 31, the ball valve; 32, the check valve; 33, the electric gate valve; 34, the flow meter; 35, the pressure reducing valve; 36, the stop valve; 4, the first output pipe; 42, the second output pipe; 5, the transfer pump; 51, the support seat; 6, the water inlet pipe; 7, the feeding pipe; 71, the transition pipe. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0035] Example 1: Refer to Figures 1 - 5 A triple-integrated conveying device for refined solid waste slurry, which includes a feed pipe 7 communicating with a slurry storage bin, and also includes: a first feed pipe 21 and a third feed pipe 23 are respectively communicated with the two feed pipes 7, and a second connecting pipe 25 is communicated between the first feed pipe 21 and the third feed pipe 23; the first feed pipe 21 is communicated with a first discharge pipe 1, the third feed pipe 23 is communicated with a third discharge pipe 13, and a transverse connecting pipe 14 is communicated between the third discharge pipe 13 and the first discharge pipe 1; the first discharge pipe 1 is communicated with a second output pipe 42, and the third discharge pipe 13 is communicated with a first output pipe 4; a first connecting pipe 24 is communicated with the first feed pipe 21, a second feed pipe 22 is communicated with the first connecting pipe 24, the second feed pipe 22 is communicated with a delivery pump 5, a second discharge pipe 12 is communicated with the transverse connecting pipe 14, and the second discharge pipe 12 is communicated with the second feed pipe 22.

[0036] In the present invention, in order to increase the transmission efficiency, two feed pipes 7 that can be communicated through other pipes are provided to perform the suction of the slurry. The slurry enters the first feed pipe 21 and the third feed pipe 23 through the feed pipe 7. The second connecting pipe 25 connects the first feed pipe 21 and the third feed pipe 23, and the first connecting pipe 24 connects the first feed pipe 21 and the second feed pipe 22. Thus, the suction force of the delivery pump 5 communicated with the second feed pipe 22 can act on the first feed pipe 21 through the first connecting pipe 24, so as to increase the suction delivery volume and improve the suction efficiency. This pipeline design has strong fault tolerance. During the actual operation of the equipment, if one of the delivery pumps 5 fails and cannot work properly, the other delivery pump 5 can use this pipeline connection design to work continuously and stably, ensuring that during the repair of the damaged delivery pump 5, the entire slurry conveying process will not be affected, and ensuring the continuous and stable conveying of the solid waste slurry;

[0037] The first feed pipe 21 and the third feed pipe 23 are connected and communicated through the second connecting pipe 25, thus forming an unobstructed pipeline network. In this network, any one of the delivery pumps 5 can fully exert its power function and transmit the power to every corner of the first feed pipe 21, the second feed pipe 22, and the third feed pipe 23; in this way, the three delivery pumps 5 are connected through pipes to form a complete set of combined power systems capable of conveying solid waste slurry. Even if one of the delivery pumps 5 fails and stops working, it will not cause the entire pipeline to become paralyzed and unable to transport the solid waste slurry;

[0038] In the discharging process, the horizontal connecting pipe 14 connects the first discharging pipe 1, the second discharging pipe 12, and the third discharging pipe 13. The first discharging pipe 1 and the third discharging pipe 13 can also achieve the effect of mutual connection, so that the slurry output from the second discharging pipe 12 is no longer limited to a single path, but can flexibly reach the first discharging pipe 1 or the third discharging pipe 13. At the same time, the first discharging pipe 1 and the third discharging pipe 13 also achieve the effect of mutual connection. This means that when the transfer pump 5 connected to the first discharging pipe 1 or the third discharging pipe 13 fails, the first discharging pipe 1 and the third discharging pipe 13 can still continuously and stably output slurry under the powerful action of other normally operating transfer pumps 5. This design of the interconnected discharging pipeline further enhances the fault tolerance and stability of the entire transmission system, ensuring that the slurry transportation task can be efficiently and reliably completed under special circumstances.

[0039] Embodiment 2: Refer to Figures 1 - 8 , a triple-integrated conveying device for refined solid waste slurry, which is basically the same as Embodiment 1. Furthermore: Ball valves 31 are provided on the first feed pipe 21, the second feed pipe 22, and the third feed pipe 23. When the transfer pump 5 fails, the ball valves 31 at the corresponding positions are closed, and the slurry reaches other pipes through the first connecting pipe 24 and the second connecting pipe 25. Check valves 32 and ball valves 31 are provided on the first discharging pipe 1, the second discharging pipe 12, and the third discharging pipe 13. The check valve 32 is used to ensure the one-way flow of the slurry in the pipeline. Electric gate valves 33 are provided on the first discharging pipe 1 and the third discharging pipe 13. The electric gate valve 33 is located between the return water pipe 27 and the first output pipe 4 and the second output pipe 42. Ball valves 31 and flow meters 34 are provided at the connection positions of the first discharging pipe 1 and the third discharging pipe 13 with the first output pipe 4 and the second output pipe 42. The transfer pump 5 is fixed on the support base 51.

[0040] In the present invention, ball valves 31 are provided on the first feed pipe 21, the second feed pipe 22, and the third feed pipe 23. The ball valves 31 on the first feed pipe 21 and the second feed pipe 22 are located between the first connecting pipe 24 and the transfer pump 5, and the ball valve 31 on the third feed pipe 23 is located between the second connecting pipe 25 and the transfer pump 5. Ball valves 31 are also provided at the positions between the horizontal connecting pipe 14 and the transfer pump 5 on the first discharging pipe 1, the second discharging pipe 12, and the third discharging pipe 13. When the transfer pump 5 fails, the ball valves 31 on the corresponding feed pipes and discharging pipes can be closed, and then the transfer pump 5 can be disassembled for maintenance;

[0041] Check valves 32 are provided on the first discharge pipe 1, the second discharge pipe 12, and the third discharge pipe 13. The position of the check valve 32 is connected to the position of the ball valve 31, and is located between the horizontal connecting pipe 14 and the transfer pump 5. By providing the check valve 32, it is possible to prevent the slurry pressure in the multiple discharge pipes and the horizontal connecting pipe 14 from being too high, resulting in backflow or damage to the transfer pump 5;

[0042] Flow meters 34 are provided at the connection positions of the first discharge pipe 1 and the third discharge pipe 13 with the first output pipe 4 and the second output pipe 42, so as to be able to judge the internal slurry flow situation. By monitoring the slurry flow rate in real time, the output state of the transfer pump can be accurately judged. When the flow is abnormal, the equipment parameters can be adjusted in time or the faults can be checked;

[0043] A ball valve 31 is provided on one side of the flow meter 34. When the ball valve 31 on one side of the corresponding flow meter 34 is closed, the corresponding output pipe is in a closed state. When the transfer pump 5 needs to be repaired, or when the transmission speed does not need to be too fast, the ball valve 31 on one side of the flow meter 34 can be closed to keep only one output pipe in a transportation-connected state, so as to avoid the situation of energy waste caused by insufficient flow velocity in the pipeline but too complex slurry flow routes.

[0044] Example 3: Refer to Figures 1 - 8 A solid waste refined slurry triple-integrated conveying device is basically the same as that in Example 2. Furthermore: Return pipes 27 are connected to both the first discharge pipe 1 and the third discharge pipe 13. A transition pipe 71 is connected between the return pipe 27 and the first feed pipe 21 and the third feed pipe 23. When the first output pipe 4 and the second output pipe 42 are in a closed state, a circulation loop is formed inside the pipeline after the return pipe 27 is connected. A water inlet pipe 6 is connected to the first feed pipe 21 and the third feed pipe 23. A ball valve 31 is provided on the water inlet pipe 6. After the first output pipe 4 and the second output pipe 42 are closed, clean water is injected through the water inlet pipe 6 to flush and clean the inside of the pipeline. A pressure reducing valve 35 and a stop valve 36 are provided on the return pipe 27. The pressure reducing valve 35 is used to ensure the pressure stability in the pipeline. Y-shaped filters 26 are provided on the first feed pipe 21 and the third feed pipe 23. The Y-shaped filters 26 are located between the second connecting pipe 25 and the water inlet pipe 6; The combined design of the return pipe 27 and the pressure reducing valve 35 can prevent air that has not been exhausted in the adjacent connected feed pipes, and prevent cavitation or small air explosion phenomena from damaging the feed pipes.

[0045] In the present invention, a water return pipe 27 is connected to both the first discharge pipe 1 and the third discharge pipe 13. The water return pipe 27 is connected to the first discharge pipe 1 and the third discharge pipe 13 through connection with a transition pipe 71, thereby forming a water circuit. After the electric gate valve 33 is closed, the first feed pipe 21, the second feed pipe 22, the third feed pipe 23, the first discharge pipe 1, the second discharge pipe 12, the third discharge pipe 13, the first connecting pipe 24, the second connecting pipe 25, and the horizontal connecting pipe 14 together form a closed one-way circuit. At this time, the ball valve 31 on the water inlet pipe 6 is opened, and the water inlet pipe 6 injects water into the first feed pipe 21 and the second feed pipe 22. Under the action of the transfer pump, the water source will be driven to circulate and flush in the circuit, thereby achieving the effect of cleaning the pipeline. At the same time, Y-shaped filters 26 are provided on the first feed pipe 21 and the third feed pipe 23. The Y-shaped filters 26 are located between the second connecting pipe 25 and the water inlet pipe 6, so that during the circulating flushing process, the dregs can be filtered and left in the Y-shaped filters 26. After the flushing is completed, the opening at the bottom of the Y-shaped filter 26 can be opened to discharge the flushing sewage and dregs. Repeating this process can achieve the effect of flushing the pipeline. At the same time, the Y-shaped filters 26 can also filter large particle impurities in the slurry, preventing the large particle impurities from entering the transfer pump 5, causing wear and damage to the transfer pump 5, and improving the service life of the transfer pump 5;

[0046] A pressure reducing valve 35 and a stop valve 36 are provided on the water return pipe 27. The pressure reducing valve 35 can ensure the balanced and stable pressure in the two-side pipelines, and the stop valve 36 can control the open and closed state of the water return pipe 27.

[0047] Example 4: Refer to Figures 1 - 8 , a method for using a three-in-one conveying device for solid waste refined slurry, mainly including the following steps:

[0048] S1. Control the electric gate valve 33 to open, close the ball valve 31 on the water inlet pipe 6 and the stop valve 36, and start the transfer pump 5 to transport the slurry;

[0049] S2. If the transfer pump 5 is damaged and needs to be repaired, close the ball valve 31 on the corresponding discharge pipe and feed pipe. If the conveying flow rate of the slurry is not high, the corresponding single transfer pump 5 can be partially closed by adjustment, and the corresponding ball valve 31 can be in a semi-open or semi-closed state, thereby saving energy;

[0050] S3. After use, open the ball valve 31 on the water inlet pipe 6 to inject clean water. After filling, close the electric gate valve 33, open the stop valve 36 to form a circuit inside the pipeline, and start the transfer pump 5 to let the clean water circulate and flush in the pipeline;

[0051] S4. Open the discharge hole of the Y-shaped filter 26 to discharge the sewage and impurities.

[0052] The above are only the preferred embodiments of the present invention, and there is no restriction on the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of the present invention can make some changes or modifications to form equivalent embodiments by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A triple-integrated conveying device for refined solid waste slurry, comprising a feeding pipe (7) communicated with a slurry storage bin, characterized in that, It also includes: Two of the said feed pipes (7) are respectively connected with a first feed pipe (21) and a third feed pipe (23), and a second connecting pipe (25) is connected between the first feed pipe (21) and the third feed pipe (23); The first feed pipe (21) is connected with a first discharge pipe (1), the third feed pipe (23) is connected with a third discharge pipe (13), and a transverse connecting pipe (14) is connected between the third discharge pipe (13) and the first discharge pipe (1); The first discharge pipe (1) is connected with a second output pipe (42), and the third discharge pipe (13) is connected with a first output pipe (4); A first connecting pipe (24) is connected to the first feed pipe (21), a second feed pipe (22) is connected to the first connecting pipe (24), the second feed pipe (22) is connected to a delivery pump (5), a second discharge pipe (12) is connected to the transverse connecting pipe (14), and the second discharge pipe (12) is connected to the second feed pipe (22).

2. The triple-integrated conveying device for solid waste refined slurry according to claim 1, wherein Ball valves (31) are provided on the first feed pipe (21), the second feed pipe (22), and the third feed pipe (23). When the delivery pump (5) fails, the ball valves (31) at the corresponding positions are closed, and the slurry reaches other pipes via the first connecting pipe (24) and the second connecting pipe (25).

3. The integrated triple conveyor device for refined solid waste slurry according to claim 2, wherein, Check valves (32) and ball valves (31) are provided on the first discharge pipe (1), the second discharge pipe (12), and the third discharge pipe (13). The check valves (32) are used to ensure the one-way flow of the slurry in the pipeline.

4. The triple-integrated conveying device for solid waste refined slurry according to claim 1, characterized in that, Return pipes (27) are connected to both the first discharge pipe (1) and the third discharge pipe (13). A transition pipe (71) is connected between the return pipes (27) and the first feed pipe (21) as well as the third feed pipe (23). When the first output pipe (4) and the second output pipe (42) are in a closed state, a circulation loop is formed inside the connected pipes through the return pipes (27).

5. The triple-in-one conveying device for solid waste refined slurry according to claim 4, characterized in that, Water inlet pipes (6) are connected to the first feed pipe (21) and the third feed pipe (23). Ball valves (31) are provided on the water inlet pipes (6). After the first output pipe (4) and the second output pipe (42) are closed, the water inlet pipes (6) inject clean water to flush and clean the inside of the pipeline.

6. The integrated triple conveyor device for refined solid waste slurry according to claim 5, characterized in that A pressure reducing valve (35) and a stop valve (36) are provided on the return pipes (27). The pressure reducing valve (35) is used to ensure the stable pressure inside the pipeline.

7. The integrated triple-conveyor device for refined solid waste slurry according to claim 6, wherein Electrically operated gate valves (33) are provided on the first discharge pipe (1) and the third discharge pipe (13). The electrically operated gate valves (33) are located between the return pipes (27) and the first output pipe (4) and the second output pipe (42).

8. A triple-integrated conveying device for solid waste refined slurry according to claim 1, characterized in that, Ball valves (31) and flow meters (34) are provided at the connection positions between the first discharge pipe (1) and the third discharge pipe (13) and the first output pipe (4) and the second output pipe (42).

9. The integrated triple-conveying device for refined solid waste slurry according to claim 1, wherein, Y-type filters (26) are provided on the first feed pipe (21) and the third feed pipe (23). The Y-type filters (26) are located between the second connecting pipe (25) and the water inlet pipe (6).

10. A method of using a triple-in-one conveying device for solid waste refined slurry, comprising the triple-in-one conveying device for solid waste refined slurry according to any one of claims 1-9, characterized in that, It mainly includes the following steps: S1. Control the electric gate valve (33) to open and start the transfer pump (5) to extract the slurry; S2. If the transfer pump (5) is damaged, close the ball valve (31) on the corresponding pipeline; S3. After use, close the electric gate valve (33), open the water inlet pipe (6) to inject clean water, and start the transfer pump (5) to let the clean water circulate and flush in the pipeline; S4. Open the discharge hole of the Y-type filter (26) to discharge the sewage and impurities.

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