Gasification slag water treatment system capable of realizing on-line automatic switching of flash evaporation system

Abstract

The utility model provides a gasification slag water treatment system capable of realizing on-line automatic switching of flash evaporation systems. The gasification slag water treatment system comprises at least two sets of flash evaporation systems, at least two sets of black water sedimentation systems and at least two sets of washing tower drainage systems, wherein each set of flash evaporation system is provided with a black water feeding pipe and a washing tower drainage feeding pipe in one-to-one correspondence with one set of black water settling system and one set of washing tower drainage system, and is used for feeding black water and draining water from the washing tower and carrying out flash evaporation treatment on the black water and the washing tower; the system further comprises a first communication pipeline and a second communication pipeline; the first communication pipeline is respectively communicated with each black water feeding pipe, and a first pneumatic switch valve is arranged at the position close to each black water feeding pipe; the second communication pipeline is respectively communicated with each washing tower drainage and feeding pipe, and a second pneumatic switch valve is arranged at the position close to each washing tower drainage and feeding pipe. The gasification slag water treatment system disclosed by the utility model can meet the requirement of on-line maintenance, realizes on-line automatic switching of the flash evaporation system, and improves the stability of the gasification slag water treatment system.

Description

Technical Field

[0001] This utility model belongs to the field of coal gasification technology, specifically relating to a gasification slag water treatment system with online automatic switching of flash evaporation system. Background Technology

[0002] Flash evaporation systems used for slag and water treatment in fluidized bed gasification units are often paired one-to-one with the gasifier and scrubbing tower. However, actual operation of the gasification slag and water treatment unit reveals that, especially after a period of operation, the failure rates of high-flash, low-flash, true flash, and black water settling systems gradually increase. If the flash evaporation system malfunctions, online maintenance is not possible, forcing the entire gasification unit to shut down and severely impacting the system's long-term operation. Current designs cannot meet the needs of online maintenance, thus failing to achieve the goals of long-term system operation and improved efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a gasification slag water treatment system with online automatic switching of the flash evaporation system, which can meet the needs of online maintenance, realize online automatic switching of the flash evaporation system, and improve the stability of the gasification slag water treatment system.

[0004] To achieve the purpose of this utility model, the following technical solution is adopted:

[0005] A gasification slag water treatment system with online automatic switching of flash evaporation systems, comprising at least two flash evaporation systems, at least two black water settling systems, and at least two scrubbing tower drainage systems; wherein...

[0006] Each flash evaporation system corresponds to one black water settling system and one washing tower drainage system. It is equipped with a black water feed pipe and a washing tower drainage feed pipe respectively, which are used to feed black water from the corresponding black water settling system and washing tower drainage from the corresponding washing tower drainage system and flash evaporate them.

[0007] The gasification slag water treatment system further includes a first connecting pipeline and a second connecting pipeline; wherein...

[0008] The first connecting pipeline is connected to each black water inlet pipe, and a first pneumatic switch valve is installed on each connecting pipeline near each black water inlet pipe.

[0009] The second connecting pipeline is connected to the drainage inlet pipe of each washing tower, and a second pneumatic switch valve is installed on the second connecting pipeline near the drainage inlet pipe of each washing tower.

[0010] In the flash evaporation system of this invention, which is an online automatic switching gasification slag water treatment system, preferably, the first connecting pipeline is also provided with a first discharge guide near each black water inlet pipe, and the first discharge guide is located near the corresponding first pneumatic switch valve.

[0011] In the flash evaporation system of this invention, which is an online automatic switching gasification slag water treatment system, preferably, the distance of the first discharge guide shower to the black water inlet pipe is greater than the distance of the corresponding first pneumatic switch valve to the black water inlet pipe.

[0012] The flash evaporation system of this utility model has an online automatic switching gasification slag water treatment system. Preferably, the gasification slag water treatment system further includes a first sealing water pipeline, the inlet of which is connected to the outlet of a first sealing water pump, and the outlet of which is connected to the first connecting pipeline; a first regulating valve is provided on the first sealing water pipeline.

[0013] In the flash evaporation system of this invention, which automatically switches online, the gasification slag water treatment system preferably has manual valves installed on the first sealed water pipeline before and after the first regulating valve.

[0014] The flash evaporation system of this invention provides an online automatic switching gasification slag water treatment system. Preferably, a second discharge drain is also provided on the first sealed water pipeline near the first regulating valve.

[0015] In the flash evaporation system of this invention, which automatically switches online, the gasification slag water treatment system preferably has a third discharge guide installed near the drain feed pipe of each washing tower in the second connecting pipeline, and the third discharge guide is located near the corresponding second pneumatic switch valve.

[0016] In the flash evaporation system of this invention, the gasification slag water treatment system with online automatic switching is preferably such that the distance of the third discharge guide to the corresponding washing tower drainage inlet pipe is greater than the distance of the corresponding second pneumatic switch valve to the corresponding washing tower drainage inlet pipe.

[0017] The flash evaporation system of this invention provides an online automatic switching gasification slag water treatment system. Preferably, the gasification slag water treatment system further includes a second sealing water pipeline, the inlet of which is connected to the outlet of a second sealing water pump, and the outlet of which is connected to the second connecting pipeline; a second regulating valve is provided on the second sealing water pipeline.

[0018] In the flash evaporation system of this invention, which automatically switches online for gasification slag water treatment, preferably, a manual valve is provided on the second sealed water pipeline before and after the second regulating valve.

[0019] In the flash evaporation system of this invention, which automatically switches online for gasification slag water treatment, preferably, a fourth discharge drain is also provided on the second sealed water pipeline near the second regulating valve.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model discloses a gasification slag water treatment system with online automatic switching of the flash evaporation system. It has a simple structure and is easy to implement. When the flash evaporation system fails in a short period of time, it can realize online automatic switching between the flash evaporation system, the black water settling system, and the scrubbing tower drainage system. During the maintenance of the faulty system, one set of flash evaporation system, one set of black water settling system, and one set of scrubbing tower drainage system can simultaneously meet the operation of two or more gasification units, thereby meeting the needs of online maintenance of the faulty system, realizing online automatic switching of the flash evaporation system, and improving the stability of the gasification slag water treatment system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the gasification slag water treatment system with online automatic switching of the flash evaporation system according to one embodiment of the present invention. Detailed Implementation

[0023] The technical solution and effects of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following embodiments are only for illustrating the content of this utility model, and the utility model is not limited to the following embodiments or examples. Simple modifications made to this utility model based on the concept of this utility model are all within the scope of protection claimed by this utility model.

[0024] like Figure 1 As shown, this utility model provides a gasification slag water treatment system with online automatic switching of flash evaporation system. The gasification slag water treatment system includes at least two flash evaporation systems, at least two black water settling systems, and at least two scrubbing tower drainage systems; wherein,

[0025] Each flash evaporation system corresponds to one black water settling system and one washing tower drainage system. It is equipped with a black water feed pipe and a washing tower drainage feed pipe respectively, which are used to feed black water from the corresponding black water settling system and washing tower drainage from the corresponding washing tower drainage system and flash evaporate them.

[0026] The gasification slag water treatment system further includes a first connecting pipeline and a second connecting pipeline; wherein...

[0027] The first connecting pipeline is connected to each black water inlet pipe, and a first pneumatic switch valve is installed on each connecting pipeline near each black water inlet pipe.

[0028] The second connecting pipeline is connected to the drainage inlet pipe of each washing tower, and a second pneumatic switch valve is installed on the second connecting pipeline near the drainage inlet pipe of each washing tower.

[0029] Those skilled in the art will understand that the connection between the black water feed pipe and the washing tower drain feed pipe and the flash evaporation system is a connection to the high-pressure flash evaporation tower of the flash evaporation system.

[0030] Those skilled in the art will understand that the feed inlet of the high-flash system is equipped with a manual valve, and the first pneumatic switch valve is installed on the first connecting pipeline to prevent black water from clogging the manual valve.

[0031] This utility model discloses a flash evaporation system with online automatic switching for gasification slag water treatment. By setting up a first connecting pipeline and a second connecting pipeline, it can meet the needs of online maintenance. When one of the flash evaporation systems, black water settling system, or scrubbing tower drainage system fails, it can switch to another corresponding system in a timely manner, realizing online automatic switching of the flash evaporation system and improving the stability of the gasification slag water treatment system.

[0032] In one embodiment, the first connecting pipeline is also provided with a first discharge guide near each black water inlet pipe, and the first discharge guide is located near the corresponding first pneumatic switch valve, so as to facilitate the cleaning of the first connecting pipeline.

[0033] In one embodiment, the distance from the first discharge guide valve to the corresponding black water inlet pipe is greater than the distance from the corresponding first pneumatic switch valve to the corresponding black water inlet pipe.

[0034] In one embodiment, the gasification slag water treatment system further includes a first sealing water pipeline, the inlet of which is connected to the outlet of a first sealing water pump, and the outlet of which is connected to the first connecting pipeline; a first regulating valve is provided on the first sealing water pipeline.

[0035] Those skilled in the art will understand that the sealing water pump refers to a high-pressure sealing water pump, and the sealing water pipeline refers to a high-pressure sealing water pipeline, with the pressure of the sealing water exceeding that of the flash evaporation system. This invention, by setting up a first sealing water pipeline, helps prevent internal leakage of the first pneumatic switch valve from causing blockage in the first connecting pipeline, acting as a water plug; on the other hand, it facilitates flushing of the first connecting pipeline, preventing the deposition of solid particles in the black water and thus preventing blockage.

[0036] In one embodiment, manual valves are respectively installed on the first sealed water pipeline before and after the first regulating valve for easy manual control.

[0037] In one embodiment, a second drain line is provided near the first regulating valve on the first sealing water pipeline to facilitate cleaning of the first sealing water pipeline.

[0038] In one embodiment, the second connecting pipeline is further provided with a third discharge guide near the drain inlet pipe of each washing tower, and the third discharge guide is located near the corresponding second pneumatic switch valve, so as to facilitate the cleaning of the second connecting pipeline.

[0039] In one embodiment, the distance of the third discharge guide valve to the corresponding drain inlet pipe of the washing tower is greater than the distance of the corresponding second pneumatic switch valve to the corresponding drain inlet pipe of the washing tower.

[0040] In one embodiment, the gasification slag water treatment system further includes a second sealing water pipeline, the inlet of which is connected to the outlet of a second sealing water pump, and the outlet of which is connected to the second connecting pipeline; a second regulating valve is provided on the second sealing water pipeline.

[0041] This invention, by setting a second sealed water pipeline, helps to prevent internal leakage of the second pneumatic switch valve from causing blockage of the second connecting pipeline, thus acting as a water plug; on the other hand, it facilitates flushing of the second connecting pipeline, preventing the deposition of solid particles in the black water and causing blockage of the second connecting pipeline.

[0042] This invention, by setting up a first sealing water pipeline and a second sealing water pipeline, helps to prevent internal leakage of the second pneumatic switch valve from causing blockage of the first and second connecting pipelines, thus acting as a water plug. On the other hand, if one set of flash evaporation system fails, the other set of flash evaporation system and black water settling system can automatically switch to enable the operation of the corresponding two gasification devices. After the faulty flash evaporation system line is repaired and the corresponding systems are restored, the high-pressure sealing water can easily flush the first and second connecting pipelines, preventing the deposition of solid particles in the black water and causing blockage of the first and second connecting pipelines.

[0043] In one embodiment, a manual valve is provided on the second sealed water pipeline before and after the second regulating valve, respectively, for easy manual control.

[0044] In one embodiment, a fourth drain valve is provided on the second sealing water pipeline near the second regulating valve to facilitate cleaning of the second sealing water pipeline.

[0045] In one embodiment, the black water inlet of the flash evaporation system is equipped with two black water inlet regulating angle valves connected in parallel.

[0046] In one embodiment, the flash evaporation system has two parallel regulating angle valves at the drain inlet of the washing tower.

[0047] In one implementation, such as Figure 1 As shown, the gasification slag water treatment system includes two flash evaporation systems, two black water settling systems, and two scrubbing tower drainage systems; wherein,

[0048] Each flash evaporation system 1 corresponds to one black water settling system and one washing tower drainage system. It is equipped with a black water feed pipe 2 and a washing tower drainage feed pipe 3, which are used to feed black water from the corresponding black water settling system and washing tower drainage from the corresponding washing tower drainage system and to flash evaporate them.

[0049] The gasification slag water treatment system further includes a first connecting pipeline 4 and a second connecting pipeline 5; wherein...

[0050] The first connecting pipeline 4 is connected to each black water inlet pipe 2, and a first pneumatic switch valve 6 is provided on the first connecting pipeline 4 near each black water inlet pipe 2.

[0051] The second connecting pipeline 5 is connected to the drainage inlet pipe 3 of each washing tower, and a second pneumatic switch valve 7 is installed on the second connecting pipeline 5 near the drainage inlet pipe 3 of each washing tower.

[0052] In one implementation, such as Figure 1 As shown, the first connecting pipeline 4 is also provided with a first discharge guide 8 near each black water inlet pipe 2, and the first discharge guide 8 is located near the corresponding first pneumatic switch valve 6.

[0053] In one implementation, such as Figure 1 As shown, the distance of the first discharge drain 8 from the corresponding black water inlet pipe 2 is greater than the distance of the corresponding first pneumatic switch valve 6 from the corresponding black water inlet pipe 2.

[0054] In one implementation, such as Figure 1 As shown, the gasification slag water treatment system also includes a first sealing water pipeline 9, with its inlet connected to the outlet of the first sealing water pump and its outlet connected to the first connecting pipeline 4; a first regulating valve 10 is provided on the first sealing water pipeline 9.

[0055] In one implementation, such as Figure 1 As shown, a hand valve is provided on the first sealed water pipeline 9 before and after the first regulating valve 10.

[0056] In one embodiment, a second drain line is also provided on the first sealed water pipeline 9 near the first regulating valve 10.

[0057] In one implementation, such as Figure 1 As shown, the second connecting pipeline 5 is also equipped with a third discharge guide 11 near the drain feed pipe 3 of each washing tower, and the third discharge guide 11 is located near the corresponding second pneumatic switch valve 7.

[0058] In one implementation, such as Figure 1 As shown, the distance of the third discharge guide 11 from the corresponding washing tower drain inlet pipe 3 is greater than the distance of the corresponding second pneumatic switch valve 7 from the corresponding washing tower drain inlet pipe 3.

[0059] In one implementation, such as Figure 1 As shown, the gasification slag water treatment system also includes a second sealing water pipeline 12, with its inlet connected to the outlet of the second sealing water pump and its outlet connected to the second connecting pipeline 5; a second regulating valve 13 is provided on the second sealing water pipeline 12.

[0060] This invention, by setting up a first sealing water pipeline 9 and a second sealing water pipeline 12, helps to prevent internal leakage of the first pneumatic switch valve 6 and the second pneumatic switch valve 7, which could cause blockage of the first connecting pipeline 4 and the second connecting pipeline 5, thus acting as a water plug. On the other hand, if one set of flash evaporation system fails, the other set of flash evaporation system and the black water settling system can automatically switch to enable the operation of the corresponding two gasification devices. After the faulty flash evaporation system line is repaired and the corresponding systems are restored, the high-pressure sealing water can easily flush the first connecting pipeline 4 and the second connecting pipeline 5, preventing the deposition of solid particles in the black water and causing blockage of the first connecting pipeline 4 and the second connecting pipeline 5.

[0061] In one implementation, such as Figure 1 As shown, a hand valve is provided on the second sealing water pipeline 12 before and after the second regulating valve 13.

[0062] In one embodiment, a fourth drain line is also provided on the second sealed water line 12 near the second regulating valve 13.

[0063] In one embodiment, the black water inlet of the flash evaporation system is provided with two black water inlet regulating angle valves 14 and 15 connected in parallel.

[0064] In one embodiment, the flash evaporation system has two parallel regulating angle valves 16 and 17 connected to the drain inlet of the washing tower.

[0065] like Figure 1 As shown, in one embodiment, taking two sets of flash evaporation systems, two sets of black water settling systems, and two washing tower drainage systems as examples, the operation process of the gasification slag water treatment system with online automatic switching of the flash evaporation system of this utility model is as follows:

[0066] 1) When the gasification slag water treatment system is running normally, open the first regulating valve 10 and the second regulating valve 13 and their front and rear hand valves, close the first discharge drain 8 and the third discharge drain 11, close the first pneumatic switch valve 6 and the second pneumatic switch valve 7 to form a water seal.

[0067] 2) If the first flash evaporation system, black water settling system, and scrubbing tower drainage system malfunction, switch to the second flash evaporation system, black water settling system, and scrubbing tower drainage system. The switching procedure is as follows:

[0068] Preparations before implementation of control measures:

[0069] a. Close the front and rear hand valves of the first regulating valve 10 and the second regulating valve 13;

[0070] b. Close the front and rear hand valves of the black water inlet regulating angle valves 14 and 15 of the first flash evaporation system, and the front and rear hand valves of the washing tower drain inlet regulating angle valves 16 and 17 of the first flash evaporation system.

[0071] Sequential control process:

[0072] a. Close the first regulating valve 10 and the second regulating valve 13;

[0073] b. Open the first pneumatic switch valve 6 and the second pneumatic switch valve 7 in the first and second systems;

[0074] c. Close the black water inlet regulating valves 14 and 15 of the first flash evaporation system, and the washing tower drain regulating valves 16 and 17 of the first flash evaporation system.

[0075] d. Adjust the opening of the black water inlet regulating valves 14 and 15 of the second flash evaporation system and the opening of the washing tower drainage regulating valves 16 and 17 of the second flash evaporation system according to the actual operating conditions of the gasifier liquid level.

[0076] 3) When the first flash evaporation system, black water settling system, and scrubbing tower drainage system have been overhauled and need to be restored to their respective systems, the procedure is as follows:

[0077] Preparations before implementation of control measures:

[0078] a. Open the front and rear hand valves of the black water inlet regulating angle valves 14 and 15 of the first flash evaporation system, and the front and rear hand valves of the washing tower drain inlet regulating angle valves 16 and 17 of the first flash evaporation system.

[0079] b. Open the first discharge drain 8 and the third discharge drain 11 in the first and second systems;

[0080] c. Open the front and rear hand valves of the first regulating valve 10 and the second regulating valve 13;

[0081] d. Open the first regulating valve 10 and the second regulating valve 13 to flush the first connecting pipeline 4;

[0082] Sequential control process:

[0083] a. Open the black water inlet regulating valve 14 of the first flash evaporation system and the washing tower drain inlet regulating valve 16 of the first flash evaporation system, and set the preset opening degree according to the commissioning situation;

[0084] b. Close the first pneumatic switch valve 6 and the second pneumatic switch valve 7 in the first and second systems;

[0085] c. Adjust the opening of the black water inlet regulating valve 14 of the first and second flash evaporation systems, and the opening of the scrubbing tower drainage inlet regulating valve 16 of the first and second flash evaporation systems according to the actual operating conditions of the gasifier liquid level.

[0086] 4) When installing flushing and water seals for new pipelines, the procedure is as follows:

[0087] a. Open the first discharge drain 8 and the third discharge drain 11 in the first and second systems;

[0088] b. Open the first regulating valve 10 and the second regulating valve 13 to flush the first connecting pipeline 4;

[0089] c. After rinsing is complete, close the first discharge drain 8 and the third discharge drain 11 in the first and second systems to form a water seal.

[0090] Application Example 1

[0091] Fluidized bed gasification unit from an operating plant (effective gas 75000 Nm³) 3 / h gasifier, 2 sets in total), adopting as follows Figure 1 When the flash evaporation system designed as shown is automatically switched online to the gasification slag water treatment system, there will be no shutdown due to failure of the flash evaporation system and black water settling system for a whole year.

[0092] Application Comparative Example 1

[0093] Fluidized bed gasification unit from an operating plant (effective gas 75000 Nm³) 3 / h gasifier (2 sets in total). In the original design, the flash evaporation system for treating slag and water in the fluidized bed gasification unit was often in a one-to-one correspondence with the gasifier and the washing tower. When the original design was adopted, the flash evaporation system and the black water settling system would need to be shut down at least once every 6 months, for at least 24 hours each time.

[0094] Economic benefits

[0095] Based on an estimated 24-hour shutdown time each time, the load on the gasifier affected by the shutdown over 24 hours is calculated to be 24 × 75000 Nm. 3 / h=1800000Nm 3 / h;

[0096] Based on 1000 Nm 3 Based on the calculation that 0.37t of ethylene glycol is produced from syngas per hour, the ethylene glycol production affected by a single shutdown due to a failure of the flash evaporation system and the black water settling system is 1,800,000 × 0.37 / 1,000 = 666t.

[0097] Based on a price of 4300 yuan per ton of ethylene glycol (the price of ethylene glycol may fluctuate depending on market conditions), the economic benefit of a single impact is 666 × 4300 = 2,863,800 yuan.

[0098] Assuming that one gasifier shuts down twice a year, and two gasifiers shut down a total of four times a year, the economic impact per year would be 4 × 2,863,800 = 11,455,200 yuan.

[0099] Based on the comparison, compared to Application Comparison 1 which adopted the original design, the adopted design... Figure 1 When applied in the first embodiment of the design shown, it can save the company 11,455,200 yuan per year, resulting in significant economic benefits.

[0100] This utility model discloses a gasification slag water treatment system with online automatic switching of the flash evaporation system. It features a simple structure and is easy to implement. When the flash evaporation system malfunctions within a short period, it can automatically switch online between the flash evaporation system, black water settling system, and scrubbing tower drainage system. This meets the needs of online maintenance, improves the stability of the gasification slag water treatment system, and enhances its stability by setting up a first connecting pipeline and a second connecting relationship, allowing the flash evaporation system, black water settling system, and scrubbing tower drainage system to serve as backups for each other. This reduces the number of forced shutdowns and equipment maintenance, smoothly protects the equipment, ensures stable long-term system operation, and improves economic efficiency. The automatic switching of the system through sequential control procedures further enhances safety and reliability.

Claims

1. A gasification slag water treatment system with online automatic switching of flash systems, characterized in that the gasification slag water treatment system comprises at least two sets of flash systems, at least two sets of black water sedimentation systems and at least two sets of scrubber drainage systems; wherein each set of flash systems is respectively provided with a black water feed pipe and a scrubber drainage feed pipe corresponding to one set of black water sedimentation system and one set of scrubber drainage system, for feeding and flash processing of black water from the corresponding black water sedimentation system and scrubber drainage from the corresponding scrubber drainage system; the gasification slag water treatment system further comprises a first communication pipeline and a second communication pipeline; wherein the first communication pipeline is connected to each black water feed pipe, and the first communication pipeline is provided with a first pneumatic on-off valve at a position close to each black water feed pipe; the second communication pipeline is connected to each scrubber drainage feed pipe, and the second communication pipeline is provided with a second pneumatic on-off valve at a position close to each scrubber drainage feed pipe. The first communication pipeline is further provided with a first discharge guide at a position close to each black water feed pipe, and the first discharge guide is arranged close to the corresponding first pneumatic on-off valve. The distance between the first discharge guide and the corresponding black water feed pipe is greater than the distance between the corresponding first pneumatic on-off valve and the corresponding black water feed pipe. The gasification slag water treatment system further comprises a first sealing water pipeline, and the inlet of the first sealing water pipeline is connected to the outlet of a first sealing water pump, and the outlet of the first sealing water pipeline is connected to the first communication pipeline; the first sealing water pipeline is provided with a first regulating valve.

2. The gasification slag water treatment system according to claim 1, wherein 5. The gasification slag water treatment system according to claim 4, characterized in that the first sealing water pipeline is provided with a hand valve before and after the first regulating valve; and / or the first sealing water pipeline is further provided with a second discharge guide close to the first regulating valve.

3. The gasification slag water treatment system of claim 2, wherein, The second communication pipeline is further provided with a third discharge guide at a position close to each scrubber drainage feed pipe, and the third discharge guide is arranged close to the corresponding second pneumatic on-off valve.

4. The gasification slag water treatment system according to claim 3, wherein The distance between the third discharge guide and the corresponding scrubber drainage feed pipe is greater than the distance between the corresponding second pneumatic on-off valve and the corresponding scrubber drainage feed pipe. The gasification slag water treatment system further comprises a second sealing water pipeline, and the inlet of the second sealing water pipeline is connected to the outlet of a second sealing water pump, and the outlet of the second sealing water pipeline is connected to the second communication pipeline; the second sealing water pipeline is provided with a second regulating valve. The second sealing water pipeline is provided with a hand valve before and after the second regulating valve. The second sealing water pipeline is further provided with a fourth discharge guide close to the second regulating valve.

6. The gasification slag water treatment system according to any one of claims 1 to 5, characterized by, ​ 7. The gasification slag water treatment system of claim 6, wherein, ​ 8. The gasification slag water treatment system according to claim 7, wherein ​ 9. The gasification slag water treatment system of claim 8, wherein, ​ 10. The gasification slag water treatment system of claim 9, wherein, ​

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