Structure of anti-ash accumulation and sewage discharge pipeline at the bottom of the gasification unit scrubbing tower

Abstract

This utility model discloses a bottom anti-ash accumulation and sewage discharge pipe structure for a gasification device in the field of washing towers. It includes a base box, a conical water collection trough, a first water tank, and a second water tank. The first and second water tanks are located inside the base box. The bottom of the air inlet section is bolted to the conical water collection trough, which is connected to the bottom of which is a first electromagnetic three-way valve. One outlet of the first electromagnetic three-way valve is connected to a first drain pipe, and the other outlet is connected to a second drain pipe. A second water inlet pipe is located at the top center of the second water tank. The top of the second water inlet pipe is connected to the second electromagnetic three-way valve via a flange. The other inlet of the second electromagnetic three-way valve is connected to a Z-shaped first water inlet pipe via a flange. A water pump is located at the output end of the second electromagnetic three-way valve. This utility model improves the quality of the cleaning water and reduces ash accumulation caused by poor water quality by alternating water supply from the two tanks, making it convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of washing towers, specifically to the structure of the anti-ash accumulation and sewage discharge pipe at the bottom of the washing tower of a gasification device. Background Technology

[0002] A gas scrubbing tower is a new type of gas purification equipment. It is an improvement upon the floating packing layer gas purifier and is widely used in pretreatment for industrial waste gas purification and dust removal, achieving excellent purification results. For coal gasification processes, gas scrubbing is unavoidable; this unit operation is used regardless of the coal gasification technology. Because its working principle is similar to a washing process, it is called a scrubbing tower. There are many reasons for ash accumulation in scrubbing towers, among which the gradually deteriorating quality of the circulating water during the scrubbing process is a major cause.

[0003] Existing scrubbing towers typically only have one circulating water tank. When the water quality in the tank deteriorates, the system needs to be shut down for replacement and cleaning, which is inconvenient and reduces the efficiency of the scrubbing tower. Furthermore, each time the scrubbing tower is stopped and restarted, process parameters need to be reset, which is detrimental to the stability of the scrubbing system and can easily lead to malfunctions. Therefore, those skilled in the art have provided a structure for an anti-ash accumulation and sewage discharge pipe at the bottom of the scrubbing tower in a gasification device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a structure for an anti-ash accumulation and sewage discharge pipe at the bottom of the washing tower of a gasification device, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The structure of the bottom ash-accumulation and sewage discharge pipeline of the gasification unit's scrubbing tower includes a base box, a conical water collection trough, a first water tank, and a second water tank. The top side of the base box is connected by a flange and sequentially arranged from bottom to top as an air inlet section, a packing section, a cleaning section, and a demisting section. An air inlet pipe is welded to the side of the air inlet section. The first water tank is located inside the base box below the air inlet section, and a second water tank is welded to the side of the first water tank. The bottom of the air inlet section is bolted to the conical water collection trough, and the bottom of the conical water collection trough is connected by a flange to a first electromagnetic three-way valve. One outlet of the first electromagnetic three-way valve is equipped with a first... The first drain pipe is inserted into the first water tank. A second drain pipe is provided at the other outlet of the first electromagnetic three-way valve and is inserted into the second water tank. A second water inlet pipe is provided at the top center of the second water tank. A second electromagnetic three-way valve is connected to the top of the second water inlet pipe through a flange. A "Z"-shaped first water inlet pipe is connected to the other inlet of the second electromagnetic three-way valve through a flange and is inserted into the first water tank. A water pump is provided at the output end of the second electromagnetic three-way valve, and a water spray pipe is provided at the output end of the water pump. The output end of the water spray pipe is inserted into the cleaning section.

[0007] As a further embodiment of this utility model: a filter element is provided at the two inlet positions where the first water supply pipe connects with the second water supply pipe and the second electromagnetic three-way valve, and the filter element is connected to the first water supply pipe and the second water supply pipe through a flange.

[0008] As a further embodiment of this utility model: the top of the first water tank and the second water tank are both connected to the side of the base box body near the top of the first water tank and the side is connected to the scale inhibitor and dispersant adding device by thread. The middle part of the scale inhibitor and dispersant adding device is connected to the solenoid valve by thread. The outside of the solenoid valve is provided with a time relay. The top of the scale inhibitor and dispersant adding device is connected to the solution bottle by thread.

[0009] As a further improvement of this utility model: the top side of the base housing near the second electromagnetic three-way valve is connected to a first maintenance door by a hinge, and the two sides of the front of the base housing are connected to two second maintenance doors by hinges.

[0010] As a further improvement of this utility model: the end of the water spray pipe near the water outlet is connected to an electric water faucet via a thread.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, a first water tank and a second water tank are provided inside the base box. The wastewater generated during cleaning enters the first electromagnetic three-way valve through the conical water collection trough. The output end of the first electromagnetic three-way valve is provided with a first drain pipe and a second drain pipe to guide the wastewater into the first water tank or the second water tank. The first water tank and the second water tank are provided with a first water inlet pipe and a second water inlet pipe, which are connected to the water pump through the second electromagnetic three-way valve. The circulating water in the different tanks is pressurized and sent into the spray pipe to wash the gas, so that the water quality is maintained at a high level, reducing the generation of dust caused by water quality. In addition, the time for changing the circulating water is reduced, and the cleaning efficiency is improved.

[0013] 2. In this utility model, a scale inhibitor and dispersant adding device is provided on the top of the first and second water tanks. A solenoid valve is threadedly connected to the middle of the scale inhibitor and dispersant adding device, and a time relay is provided on the outside of the solenoid valve. The time relay is used to control the solenoid valve at regular intervals to automatically add scale inhibitor and dispersant to the first and second water tanks, which can effectively reduce dust agglomeration and is convenient to use. A solution bottle is threadedly connected to the top of the scale inhibitor and dispersant adding device, which facilitates the addition of scale inhibitor and dispersant. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the pipeline structure of the first water tank and the second water tank in this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure of the second electromagnetic three-way valve in this utility model;

[0017] Figure 4 This is a schematic diagram of the scale inhibitor and dispersant addition device in this utility model.

[0018] In the diagram: 1. Base housing; 2. Air inlet section; 3. Air inlet duct; 4. Packing section; 5. Cleaning section; 6. Demisting section; 7. First maintenance door; 8. Second maintenance door; 9. Water pump; 10. Spray pipe; 11. Electric hot water faucet; 12. Conical water collection tank; 13. First water tank; 14. Second water tank; 15. Scale inhibitor / dispersant adding device; 16. First solenoid three-way valve; 17. First drain pipe; 18. Second drain pipe; 19. First water inlet pipe; 20. Second water inlet pipe; 21. Filter element; 22. Second solenoid three-way valve; 23. Solenoid valve; 24. Time relay; 25. Solution bottle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 In this embodiment of the invention, the bottom anti-ash accumulation and sewage discharge pipe structure of the gasification device washing tower includes a base box 1, a conical water collection trough 12, a first water tank 13, and a second water tank 14. The top side of the base box 1 is connected by a flange to an air inlet section 2, a packing section 4, a cleaning section 5, and a demisting section 6 arranged sequentially from bottom to top. An air inlet pipe 3 is welded to the side of the air inlet section 2. The first water tank 13 is located inside the base box 1 below the air inlet section 2. The second water tank 14 is welded to the side of the first water tank 13. The bottom of the air inlet section 2 is bolted to the conical water collection trough 12. The bottom of the conical water collection trough 12 is connected by a flange to a first electromagnetic three-way valve 16. One outlet of the first electromagnetic three-way valve 16 is provided with a first drain pipe 17, which is inserted into the first water tank 13. The second outlet of the first electromagnetic three-way valve 16 is provided with a second drain pipe 18, which is inserted into the second water tank 14. The top center of the second water tank 14 is provided with a second water inlet pipe 20, and the top of the second water inlet pipe 20 is connected to a second electromagnetic three-way valve 22 via a flange. The other inlet of the second electromagnetic three-way valve 22 is connected to a "Z"-shaped first water inlet pipe 19 via a flange, which is inserted into the first water tank 13. The output end of the second electromagnetic three-way valve 22 is provided with a water pump 9, and the output end of the water pump 9 is provided with a spray pipe 10. The output end of the spray pipe 10 is inserted into the cleaning section 5. The two water tanks are used alternately to ensure that the circulating water is always maintained at a high water quality, reduce the generation of ash, and prevent downtime caused by changing the circulating water, thus reducing work efficiency.

[0021] Among them, filter element 21 is installed at the two inlet positions of the first water supply pipe 19, the second water supply pipe 20, and the second electromagnetic three-way valve 22. The filter element 21 is connected to the first water supply pipe 19 and the second water supply pipe 20 through flanges. The filter element 21 can effectively prevent impurities in the circulating water from re-entering the washing tower, effectively reduce ash accumulation, facilitate individual replacement of the filter element 21, and is easy to use.

[0022] The first water tank 13 and the second water tank 14 are both connected to the top of the base box 1 via a threaded connection on the side close to the front. The middle of the scale inhibitor and dispersant adding device 15 is connected to the solenoid valve 23 via a threaded connection. A time relay 24 is provided on the outside of the solenoid valve 23. The top of the scale inhibitor and dispersant adding device 15 is connected to the solution bottle 25 via a threaded connection. The scale inhibitor and dispersant is automatically added to the first water tank 13 and the second water tank 14 according to the working interval, which effectively prevents the accumulation of ash due to the circulating water quality.

[0023] Among them, the top side of the base box 1 near the second electromagnetic three-way valve 22 is connected to the first maintenance door 7 by a hinge, and the two sides of the front of the base box 1 are connected to two second maintenance doors 8 by hinges, which facilitates the maintenance of the pipelines inside the base box 1 and makes it convenient to use.

[0024] The water spray pipe 10 is connected to an electric hot water faucet 11 via a threaded connection at one end near the water outlet. This faucet heats the circulating water at a lower temperature and effectively prevents dust accumulation.

[0025] The working principle of this utility model is as follows: The exhaust gas to be cleaned enters the air inlet section 2 through the air inlet pipe 3, and then passes through the packing section 4, the cleaning section 5, and the demisting section 6 in sequence, finally exiting the scrubbing tower. The wastewater generated after cleaning enters the first electromagnetic three-way valve 16 through the conical water collection tank 12. The electromagnetic three-way valve controls the wastewater to enter the first drain pipe 17 or the second drain pipe 18, thereby entering the first water tank 13 or the second water tank 14 respectively. The second electromagnetic three-way valve 22 located at the top of the second water tank 14 controls the pipe leading to the water pump 9 to be the first water inlet pipe 19 or the second water inlet pipe 20. Thus, the water pump 9 pressurizes the circulating water in the first water tank 13 or the second water tank 14 and sends it into the spray pipe 10 and into the cleaning section 5 for gas scrubbing. The two water tanks can be freely switched for circulating water. The discharge and extraction of water reduce the frequency of circulating water replacement and avoid downtime, effectively improving cleaning efficiency. The electric hot water faucet 11 located at the top of the spray pipe 10 controls the temperature of the circulating water at a suitable temperature, which can effectively reduce the generation of ash. In addition, the scale inhibitor and dispersant adding device 15 located at the top of the first water tank 13 and the second water tank 14 adds scale inhibitor and dispersant to the water tank at a certain frequency, which can effectively improve the resistance of the circulating water to the formation of ash. The filter element 21 is installed at the two inlet positions of the first water supply pipe 19, the second water supply pipe 20 and the second electromagnetic three-way valve 22, which can filter impurities in the circulating water separately, extending the service life of the circulating water. The filter element 21 can be replaced separately without stopping the operation of the washing tower, making it convenient to use.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gasification device scrubber bottom ash deposition prevention blowdown piping structure, comprising a base box (1), a conical water collecting tank (12), a first water tank (13) and a second water tank (14), characterized in that: The top side of the base box (1) is connected by a flange and arranged sequentially from bottom to top as follows: air inlet section (2), packing section (4), cleaning section (5), and demisting section (6). An air inlet pipe (3) is welded to the side of the air inlet section (2). A first water tank (13) is arranged inside the base box (1) below the air inlet section (2). A second water tank (14) is welded to the side of the first water tank (13). A conical water collection trough (12) is bolted to the bottom of the air inlet section (2). A first electromagnetic three-way valve (16) is flanged to the bottom of the conical water collection trough (12). A first drain pipe (17) is provided at one of the outlets of the first electromagnetic three-way valve (16). The first drain pipe (17) is inserted into the first water tank (13). The other outlet of the first electromagnetic three-way valve (16) is provided with a second drain pipe (18), which is inserted into the second water tank (14). The top center of the second water tank (14) is provided with a second water inlet pipe (20), and the top of the second water inlet pipe (20) is connected to a second electromagnetic three-way valve (22) via a flange. The other inlet of the second electromagnetic three-way valve (22) is connected to a "Z"-shaped first water inlet pipe (19) via a flange. The first water inlet pipe (19) is inserted into the first water tank (13). The output end of the second electromagnetic three-way valve (22) is provided with a water pump (9), and the output end of the water pump (9) is provided with a spray pipe (10). The output end of the spray pipe (10) is inserted into the cleaning section (5).

2. The structure of the anti-ash accumulation and sewage discharge pipe at the bottom of the gasification unit's scrubbing tower according to claim 1, characterized in that: A filter element (21) is provided at the two inlets of the first water supply pipe (19) and the second water supply pipe (20) and the second electromagnetic three-way valve (22). The filter element (21) is connected to the first water supply pipe (19) and the second water supply pipe through a flange.

3. The structure of the anti-ash accumulation and sewage discharge pipeline at the bottom of the gasification unit's scrubbing tower according to claim 1, characterized in that: The top of the first water tank (13) and the second water tank (14) are connected to the scale inhibitor dispersant adding device (15) by thread on the side of the base box (1). The middle part of the scale inhibitor dispersant adding device (15) is connected to the solenoid valve (23) by thread. A time relay (24) is provided on the outside of the solenoid valve (23). The top of the scale inhibitor dispersant adding device (15) is connected to the solution bottle (25) by thread.

4. The structure of the anti-ash accumulation and sewage discharge pipe at the bottom of the gasification unit's scrubbing tower according to claim 1, characterized in that: The base housing (1) has a first maintenance door (7) connected to the top side of the side near the second electromagnetic three-way valve (22) via a hinge, and two second maintenance doors (8) are connected to the front sides of the base housing (1) via hinges.

5. The structure of the anti-ash accumulation and sewage discharge pipe at the bottom of the gasification unit's scrubbing tower according to claim 1, characterized in that: The end of the water spray pipe (10) near the water outlet is connected to an electric water faucet (11) via a thread.

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