Filter device for synthetic ammonia semi-water gas

Abstract

The utility model provides a filter device for synthesis ammonia semi-water gas, and relates to the technical field of coal head synthesis ammonia, the filter device comprises a cylinder, the middle of the cylinder is communicated with a gas inlet pipe, the top of the cylinder is communicated with an exhaust pipe, the cylinder is internally provided with a filter assembly, an overflow assembly and a sedimentation assembly, the filter assembly is located at the middle lower part of the cylinder, and the overflow assembly is located below the cylinder; the overflow assembly is located on the side portion of the barrel, the sedimentation assembly is located between the filtering assembly and the exhaust pipe, filtered water is arranged at the bottom of the barrel, the gas outlet end of the gas inlet pipe is located below the liquid level of the filtered water, and particle impurities of semi-water gas desulfurized by the desulfurizing tower can be effectively removed through the filtering assembly and the overflow assembly. Dust impurities floating on the surface of filtered water after filtration are discharged from the overflow assembly through the overflow assembly, so that the dust impurities on the liquid level of the filtered water are reduced, the dust impurities brought out by the semi-water gas from the liquid level of the filtered water are reduced, and the content of the dust impurities in the semi-water gas is lower.

Description

Technical Field

[0001] This application relates to the technical field of coal-based synthetic ammonia, and more specifically, to a filtering device for semi-water gas in synthetic ammonia production. Background Art

[0002] Synthetic ammonia refers to ammonia directly synthesized from nitrogen and hydrogen under high temperature, high pressure, and the presence of a catalyst, which is a basic inorganic chemical process. With the development of science and technology, the demand for ammonia is increasing day by day. In the synthetic ammonia process flow, in the gas-making section, the semi-water gas is washed and cooled to about 40 °C in a scrubber and then needs to be sent to a semi-water gas holder for residence.

[0003] Currently, most of the semi-water gas cannot completely filter impurities in the desulfurization tower. After desulfurization in the desulfurization tower, it needs to be dust-removed and filtered again. These impurities and particulate matters will float on the liquid surface of the filter, resulting in some floating dust impurities being carried away when the semi-water gas rises and discharges. As a result, scale is likely to form on the inner wall of the transmission pipeline, and the impurities in the semi-water gas will affect the reaction of the semi-water gas and the effect and stability of the process. Therefore, we propose a filtering device for semi-water gas in synthetic ammonia to solve this problem. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a filtering device for semi-water gas in synthetic ammonia, which can solve the technical problem of dust impurities in semi-water gas.

[0005] The embodiments of this application provide a filtering device for semi-water gas in synthetic ammonia, including a cylinder body. An air inlet pipe is connected in the middle of the cylinder body, and an exhaust pipe is connected at the top of the cylinder body. A filtering component, an overflow component, and a sedimentation component are arranged in the cylinder body. The filtering component is located in the lower middle part of the cylinder body, the overflow component is located on the side of the cylinder body, and the sedimentation component is located between the filtering component and the exhaust pipe. Filtering water is arranged at the bottom of the cylinder body, and the outlet end of the air inlet pipe is located below the liquid surface of the filtering water.

[0006] Furthermore, the filtering component includes an annular gas-collecting plate, a spray pipe, a water guide pipe, a water pump, and a water tank. The annular gas-collecting plate is located above the liquid surface of the filtering water. The spray pipe is fixedly arranged on the annular gas-collecting plate. One end of the water guide pipe is connected to the spray pipe, the other end of the water guide pipe is connected to the water pump, and the water pump is connected to the bottom of the water tank.

[0007] Furthermore, the annular gas-collecting plate is arranged in a conical shape.

[0008] Furthermore, a plurality of atomizing nozzles are arranged at the spray pipe.

[0009] Further, the overflow assembly includes a plurality of overflow pipes, a collection tank, and a slag discharge valve opening. The plurality of overflow pipes are communicatively arranged on the side wall of the cylinder body. The other end of the overflow pipe is communicated with the collection tank. The collection tank is fixedly arranged on the side wall of the cylinder body. The slag discharge valve opening is communicatively arranged at the bottom of the collection tank.

[0010] Further, the lowest point of the liquid inlet of the overflow pipe is at the same level as the filtered water.

[0011] Further, the sedimentation assembly includes a plurality of windshields. The windshields are inclined and relatively spaced apart in the cylinder body.

[0012] Further, a cleaning window is provided on the cylinder body, and the cleaning window is located on one side of the filtering assembly.

[0013] Advantages of the present utility model:

[0014] The filtering assembly and the overflow assembly provided by the present utility model can effectively clean particulate impurities in the semi-water gas after desulfurization treatment in the desulfurization tower, and discharge the dust impurities floating on the surface of the filtered water from the overflow assembly through the overflow assembly, reducing the dust impurities on the liquid surface of the filtered water, reducing the dust impurities carried out by the semi-water gas from the liquid surface of the filtered water, and making the content of dust impurities in the semi-water gas less.

[0015] The sedimentation assembly provided by the present utility model can effectively extend the discharge time of the semi-water gas in the cylinder body, enable the dust impurities in the semi-water gas to settle in the sedimentation assembly, and make the dust impurities separate from the semi-water gas under the action of gravity and fall on the annular air collecting plate. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2 It is a schematic cross-sectional structural diagram of an embodiment of the present utility model.

[0019] The reference numerals are respectively:

[0020] 1. Cylinder body; 11. Air inlet pipe; 12. Exhaust pipe; 13. Filtered water; 14. Cleaning window; 2. Filter assembly; 21. Annular air collecting plate; 22. Spraying pipe; 221. Atomizing nozzle; 23. Water guiding pipe; 24. Water pump; 25. Water tank; 3. Overflow assembly; 31. Overflow pipe; 32. Collection tank; 33. Slag discharge valve port; 4. Sedimentation assembly; 41. Wind baffle; Detailed implementation manners

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0023] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0025] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] An embodiment of the present application discloses a filtering device for synthetic ammonia semi-water gas.

[0028] Refer to Figure 1-2 , a filtering device for synthetic ammonia semi-water gas, includes a cylinder body 1. An air inlet pipe 11 is communicatively arranged in the middle of the cylinder body 1. An exhaust pipe 12 is communicatively arranged at the top of the cylinder body 1. A filtering component 2, an overflow component 3, and a sedimentation component 4 are arranged in the cylinder body 1. The filtering component 2 is located in the lower middle of the cylinder body 1. The overflow component 3 is located on the side of the cylinder body 1. The sedimentation component 4 is located between the filtering component 2 and the exhaust pipe 12. Filtered water 13 is arranged at the bottom of the cylinder body 1, and the air outlet end of the air inlet pipe 11 is located below the liquid level of the filtered water 13;

[0029] During use, the semi-water gas is desulfurized at the desulfurization tower and then enters the cylinder body 1 through the air inlet pipe 11, and the semi-water gas is further cleaned of dust impurities through the filtered water 13. Then the semi-water gas floats up from the filtered water 13 and is further cleaned of dust impurities through the filtering component 2. Then it is discharged into the sedimentation component 4, and the sedimentation component 4 can effectively extend the discharge time of the semi-water gas in the cylinder body 1, so that the dust impurities in the semi-water gas settle in the sedimentation component 4, and the dust impurities fall off the annular air collecting plate 21 under the action of gravity and are separated from the semi-water gas, and then are discharged into the next device through the exhaust pipe 12.

[0030] Refer to Figure 2 , the filtering component 2 includes an annular air collecting plate 21, a spray pipe 22, a water guide pipe 23, a water pump 24, and a water tank 25. The annular air collecting plate 21 is located above the liquid level of the filtered water 13. The spray pipe 22 is fixedly arranged on the annular air collecting plate 21. One end of the water guide pipe 23 is connected to the spray pipe 22, the other end of the water guide pipe 23 is connected to the water pump 24, and the water pump 24 is connected to the bottom of the water tank 25;

[0031] More specifically, the annular air collecting plate 21 is arranged in a conical shape, which can gather the rising semi-water gas in one place for spray treatment;

[0032] More specifically, a plurality of atomizing nozzles 221 are arranged at the spray pipe 22;

[0033] In use, the semi-water gas rises to the annular gas-gathering plate 21 after being filtered by the filtered water 13 and rises through the middle of the annular gas-gathering plate 21. The water pump 24 pumps the water in the water tank 25 and conveys the water to the spray pipe 22 through the water guide pipe 23, and the atomizing nozzles 221 on the spray pipe 22 are used to further remove dust and impurities from the rising semi-water gas.

[0034] Refer to Figure 1-2 , the overflow assembly 3 includes a plurality of overflow pipes 31, a collection tank 32 and a slag discharge valve port 33. The plurality of overflow pipes 31 are connected and arranged on the side wall of the cylinder body 1, the other end of the overflow pipe 31 is communicated with the collection tank 32, the collection tank 32 is fixedly arranged on the side wall of the cylinder body 1, and the slag discharge valve port 33 is communicated and arranged at the bottom of the collection tank 32;

[0035] More specifically, the lowest point of the liquid inlet of the overflow pipe 31 is flush with the filtered water 13;

[0036] In use, the scum on the liquid surface of the filtered water 13 causes the liquid surface to continuously rise through the falling of the spray water. Then, the rising liquid surface can be collected through the overflow pipe 31, effectively removing the scum on the liquid surface of the filtered water 13 and preventing the impurities on the liquid surface from being carried away by the rising semi-water gas.

[0037] Refer to Figure 2 , the sedimentation assembly 4 includes a plurality of windshields 41, the windshields 41 are inclined, and the plurality of windshields 41 are relatively spaced and arranged in the cylinder body 1; in use, the windshields 41 can effectively extend the discharge time of the semi-water gas in the cylinder body 1, so that the dust impurities in the semi-water gas are sedimented in the sedimentation assembly 4, and the dust impurities are separated from the semi-water gas under the action of gravity and fall on the annular gas-gathering plate 21.

[0038] Refer to Figure 1 , the cylinder body 1 is also provided with a cleaning window 14, the cleaning window 14 is located on one side of the filtering assembly 2, the cleaning window 14 is rotatably arranged and can be hermetically arranged on the side wall of the cylinder body 1. When the annular gas-gathering plate 21 needs to be cleaned, the cleaning window 14 can be opened to clean the annular gas-gathering plate 21.

[0039] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filtering device for semi-water gas of synthetic ammonia, characterized in that: It includes a cylinder body, an air inlet pipe is connected and arranged in the middle of the cylinder body, an exhaust pipe is connected and arranged at the top of the cylinder body, a filtering component, an overflow component and a sedimentation component are arranged in the cylinder body, the filtering component is located in the lower middle of the cylinder body, the overflow component is located at the side of the cylinder body, the sedimentation component is located between the filtering component and the exhaust pipe, filtered water is arranged at the bottom of the cylinder body, and the air outlet end of the air inlet pipe is located below the liquid level of the filtered water.

2. The filtering device for semi-water gas for ammonia synthesis according to claim 1, characterized in that, The filtering component includes an annular air collecting plate, a spray pipe, a water guide pipe, a water pump and a water tank. The annular air collecting plate is located above the liquid level of the filtered water. The spray pipe is fixedly arranged on the annular air collecting plate. One end of the water guide pipe is connected to the spray pipe, the other end of the water guide pipe is connected to the water pump, and the water pump is connected to the bottom of the water tank.

3. The filtering device for semi-water gas for ammonia synthesis according to claim 2, characterized in that, The annular air collecting plate is arranged in a conical shape.

4. The filtering device for synthetic ammonia semi-water gas according to claim 2, characterized in that, A plurality of atomizing nozzles are arranged at the spray pipe.

5. The filtering device for semi-water gas in ammonia synthesis according to claim 1, characterized in that, The overflow component includes a plurality of overflow pipes, a collecting tank and a slag discharge valve opening. The plurality of overflow pipes are connected and arranged on the side wall of the cylinder body. The other end of the overflow pipe is communicated with the collecting tank. The collecting tank is fixedly arranged on the side wall of the cylinder body. The slag discharge valve opening is connected and arranged at the bottom of the collecting tank.

6. The filtering device for semi-water gas of synthetic ammonia according to claim 5, characterized in that, The lowest point of the liquid inlet of the overflow pipe is flush with the filtered water.

7. The filtering device for semi-water gas for ammonia synthesis according to claim 1, characterized in that, The sedimentation component includes a plurality of windshields, the windshields are arranged obliquely, and the plurality of windshields are arranged at intervals relative to each other in the cylinder body.

8. A filtering device for synthetic ammonia semi-water gas according to claim 1, characterized in that, A cleaning window is further arranged on the cylinder body, and the cleaning window is located on one side of the filtering component.

Images