Flue gas denitration equipment convenient for improving denitration efficiency

Abstract

The utility model discloses flue gas denitration equipment convenient for improving denitration efficiency, which comprises an equipment shell, the left side of the equipment shell close to the top is communicated with a gas inlet pipe, the top of the equipment shell is fixedly connected with a gas outlet pipe, and the right side of the equipment shell close to the bottom is fixedly connected with a communicating piece. And the side, away from the equipment shell, of the communicating piece communicates with a conveying pipe, the bottom of the equipment shell is fixedly connected with a connecting pipe, and the top of the connecting pipe is fixedly connected with a collecting block. According to the utility model, the limiting plate and the through hole pipe are arranged, so that the reaction efficiency is favorably improved, the uniform ammonia gas distribution is favorable for stabilizing the operation of the whole equipment, the non-uniform aging or corrosion of a catalyst can be reduced, the reliability and stability of the equipment are improved, the ammonia gas is uniformly discharged, and the service life of the equipment is prolonged. And the total ammonia gas consumption can be reduced on the premise of ensuring the denitration efficiency, so that the operation cost and the ammonia gas consumption are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas denitration, and in particular to a flue gas denitration device which is convenient for improving denitration efficiency. Background Art

[0002] Flue gas is generated in the process of industrial production, which usually refers to the waste gas generated in the process of industrial production, which contains various gases and particulate matter. These flue gases mainly come from combustion processes, chemical reactions or other industrial activities. Because the flue gas contains toxic and harmful substances, flue gas treatment equipment is generally required to remove pollutants in the waste gas to reduce their impact on the environment and human health.

[0003] At present, when the existing flue gas denitrification equipment is in use, the distribution of ammonia may be uneven when adding ammonia, resulting in the failure of ammonia to fully react with nitrogen oxides, causing insufficient denitrification and making the content of toxic and harmful substances in the flue gas fail to meet the standards. Secondary treatment is required, thus affecting the overall denitrification efficiency. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that ammonia fails to fully react with nitrogen oxides, and proposes a flue gas denitrification device that is convenient for improving the denitrification efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flue gas denitrification device for improving denitrification efficiency comprises a device shell, wherein the left side of the device shell near the top is connected to an air inlet pipe, the top of the device shell is fixedly connected to an air outlet pipe, the right side of the device shell near the bottom is fixedly connected to a connecting piece, the side of the connecting piece away from the device shell is connected to a conveying pipe, the bottom of the device shell is fixedly connected to a connecting pipe, the top of the connecting pipe is fixedly connected to a collecting block, and the top of the collecting block is fixedly connected to a conveying block.

[0007] Preferably, the bottom of the air inlet pipe is fixedly connected to a limit plate, the bottom of the limit plate is provided with a limit ring, the limit ring is located at the top of the conveying block, and the inner side of the top of the conveying block presents a conical depression.

[0008] Preferably, the bottom of the connecting tube is threadedly connected to a collecting box, the left side of the connecting tube is connected to an oxygen supply tube, the top of the connecting tube is connected to the top of a collecting block, and the collecting block is located at the bottom of the conveying block.

[0009] Preferably, the connecting piece is fixedly connected with a connecting pipe near the front and back of the equipment housing, the equipment housing and the connecting pipe are fixedly sleeved, and the connecting pipe is connected with a conveying ring pipe near the center of the equipment housing.

[0010] Preferably, an air pipe is fixedly connected to the inner side of the conveying ring pipe near the top, and the end of the air pipe away from the conveying ring pipe is connected to a through-hole pipe, the top of the through-hole pipe is connected to the top of the conveying block, and the bottom of the through-hole pipe is connected to the bottom of the conveying block.

[0011] Preferably, a bottom portion of the conveying ring pipe close to the center is connected to a ring pipe connecting pipe, and an end of the ring pipe connecting pipe away from the conveying ring pipe is connected to another conveying ring pipe.

[0012] Preferably, the middle part of the limit plate is flat, the edge of the limit plate is upwardly tilted, the limit ring as a whole is in a ring shape extending downward, the outer side of the bottom of the limit ring is fixedly connected to the inner side of the device housing, and the top of the limit ring is located near the edge of the limit plate.

[0013] Compared with the prior art, the utility model provides a flue gas denitrification device that is convenient for improving the denitrification efficiency and has the following beneficial effects:

[0014] 1. The flue gas denitrification equipment which is convenient for improving the denitrification efficiency is provided with a limit plate and a through-hole pipe. The flue gas passes through the air inlet pipe, which is located at the bottom of the limit plate, and is then discharged from the through-hole pipe through ammonia to intersect with the flue gas. The through-hole pipe is evenly distributed on the conveying block, so that the ammonia is evenly mixed in the flue gas, which is beneficial to improving the efficiency of the reaction. The uniform distribution of ammonia helps to stabilize the overall operation of the equipment, which can reduce uneven aging or corrosion of the catalyst, improve the reliability and stability of the equipment, and through the uniform discharge of ammonia, the total ammonia usage can be reduced while ensuring the denitrification efficiency, thereby reducing the operating cost and ammonia consumption.

[0015] 2. The flue gas denitrification equipment which is convenient for improving the denitrification efficiency is provided with a collecting box and a collecting block. After the ammonia gas contacts and reacts with the flue gas through the through-hole tube, certain solid wastes will be generated. These solid wastes will pass through the top of the conveying block, enter the through-hole tube, fall into the bottom of the through-hole tube, enter the top of the collecting block, and then enter the collecting box from the top of the collecting block. The solid wastes can be collected by removing the collecting box, which helps to reduce the negative impact on the environment. If these solid wastes are directly discharged or disposed of without treatment, they may cause pollution to the soil, water sources and surrounding ecosystems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a flue gas denitration device proposed by the utility model for improving denitration efficiency;

[0017] Figure 2 A schematic diagram of the internal structure of the equipment shell of a flue gas denitration equipment proposed by the utility model for improving the denitration efficiency;

[0018] Figure 3 A schematic cross-sectional view of a limiting plate and a limiting ring of a flue gas denitration device proposed by the utility model for improving denitration efficiency;

[0019] Figure 4 This is a schematic diagram of a through-hole pipe of a flue gas denitrification device proposed by the utility model for improving the denitrification efficiency.

[0020] In the figure: 1. Equipment casing; 2. Air inlet pipe; 3. Air outlet pipe; 4. Connecting pipe; 5. Collecting box; 6. Oxygen supply pipe; 7. Connecting piece; 8. Delivery pipe; 9. Limiting plate; 10. Limiting ring; 11. Delivery block; 12. Connecting pipe; 13. Collecting block; 14. Through-hole pipe; 15. Air delivery pipe; 16. Delivery ring pipe; 17. Ring pipe connecting pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Reference Figure 1-4 A flue gas denitrification device for improving denitrification efficiency includes a device shell 1, an air inlet pipe 2 is connected to the left side of the device shell 1 near the top, an air outlet pipe 3 is fixedly connected to the top of the device shell 1, a connecting piece 7 is fixedly connected to the right side of the device shell 1 near the bottom, a conveying pipe 8 is connected to the side of the connecting piece 7 away from the device shell 1, a connecting pipe 4 is fixedly connected to the bottom of the device shell 1, a collecting box 5 is threadedly connected to the bottom of the connecting pipe 4, an oxygen supply pipe 6 is connected to the left side of the connecting pipe 4, the top of the connecting pipe 4 is connected to the top of a collecting block 13, the collecting block 13 is located at the bottom of a conveying block 11, the top of the connecting pipe 4 is fixedly connected to the collecting block 13, which is used to collect solid waste after reaction, so as to improve the convenience of using the device, and the top of the collecting block 13 is fixedly connected to the conveying block 11.

[0024] Reference Figure 1-4The bottom of the air inlet pipe 2 is fixedly connected to a limiting plate 9, and a limiting ring 10 is provided at the bottom of the limiting plate 9. The limiting plate 9 and the limiting ring 10 are provided to reduce the rising speed of the flue gas and to make the flue gas fully contact with the ammonia gas. The middle part of the limiting plate 9 is flat, and the edge of the limiting plate 9 is tilted upward. The limiting ring 10 is in a ring shape extending downward as a whole. The outer side of the bottom of the limiting ring 10 is fixedly connected to the inner side of the equipment housing 1, and the top of the limiting ring 10 is located near the edge of the limiting plate 9. The limiting ring 10 is located at the top of the conveying block 11. The inner side of the top of the conveying block 11 is a conical depression, which is convenient for collecting solid waste after the reaction of the flue gas and ammonia gas. The connecting piece 7 is close to the equipment housing 1 A connecting pipe 12 is fixedly connected to the front and back of the device casing 1, and a conveying ring pipe 16 is connected to the connecting pipe 12 near the center of the device casing 1. A gas pipe 15 is fixedly connected to the inner side of the conveying ring pipe 16 near the top, and the end of the gas pipe 15 away from the conveying ring pipe 16 is connected to a through-hole pipe 14. The through-hole pipes 14 are evenly distributed on the device casing 1 to facilitate full contact between the ammonia gas conveyed by the through-hole pipes 14 and the flue gas. The top of the through-hole pipe 14 is connected to the top of the conveying block 11, and the bottom of the through-hole pipe 14 is connected to the bottom of the conveying block 11. The bottom of the conveying ring pipe 16 near the center is connected to a ring pipe connecting pipe 17, and the end of the ring pipe connecting pipe 17 away from the conveying ring pipe 16 is connected to another conveying ring pipe 16.

[0025] In the utility model, when in use, the user can transport the flue gas through the air inlet pipe 2, and then block the flue gas through the limit plate 9 and the limit ring 10, and then transport the ammonia through the delivery pipe 8. The ammonia enters the connecting pipe 12 through the connecting piece 7, enters the delivery ring pipe 16 through the connecting pipe 12, and then enters the ring pipe connecting pipe 17 and the air delivery pipe 15 through the delivery ring pipe 16, and finally is discharged through the through-hole pipe 14 to contact the flue gas. After fully reacting with the flue gas, the flue gas enters the top of the equipment housing 1 through the edge of the limit plate 9, and is then discharged from the air outlet pipe 3 to enter the next processing link. At the same time, when the flue gas reacts with the ammonia, a certain amount of oxygen is required, which can be provided through the oxygen supply pipe 6. At the same time, the solid waste produced after the flue gas reaction will enter the bottom of the collection block 13 through the through-hole pipe 14, and then enter the inside of the collection box 5 through the collection block 13 for collection.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flue gas denitration device for improving denitration efficiency, comprising a device housing (1), characterized in that: An air inlet pipe (2) is connected to the left side of the device housing (1) near the top, an air outlet pipe (3) is fixedly connected to the top of the device housing (1), a connecting piece (7) is fixedly connected to the right side of the device housing (1) near the bottom, a side of the connecting piece (7) away from the device housing (1) is connected to a delivery pipe (8), a connecting pipe (4) is fixedly connected to the bottom of the device housing (1), a collecting block (13) is fixedly connected to the top of the collecting block (13), and a delivery block (11) is fixedly connected to the top of the collecting block (13).

2. A flue gas denitration device for improving denitration efficiency according to claim 1, characterized in that: The bottom of the air inlet pipe (2) is fixedly connected to a limiting plate (9), the bottom of the limiting plate (9) is provided with a limiting ring (10), the limiting ring (10) is located at the top of the conveying block (11), and the inner side of the top of the conveying block (11) presents a conical depression.

3. The flue gas denitration equipment for improving denitration efficiency according to claim 1, characterized in that: The bottom of the connecting tube (4) is threadedly connected to a collecting box (5), the left side of the connecting tube (4) is connected to an oxygen supply tube (6), the top of the connecting tube (4) is connected to the top of a collecting block (13), and the collecting block (13) is located at the bottom of the conveying block (11).

4. The flue gas denitration equipment for improving denitration efficiency according to claim 1, characterized in that: The connecting piece (7) is fixedly connected to a connecting pipe (12) at a position close to the front and back of the device housing (1), and the connecting pipe (12) is connected to a conveying ring pipe (16) at a position close to the center of the device housing (1).

5. A flue gas denitration device for improving denitration efficiency according to claim 4, characterized in that: An air delivery pipe (15) is fixedly connected to the inner side of the conveying ring pipe (16) near the top, and one end of the air delivery pipe (15) away from the conveying ring pipe (16) is connected to a through-hole pipe (14), the top of the through-hole pipe (14) is connected to the top of the conveying block (11), and the bottom of the through-hole pipe (14) is connected to the bottom of the conveying block (11).

6. The flue gas denitration equipment for improving denitration efficiency according to claim 4, characterized in that: The bottom of the conveying ring pipe (16) close to the center is connected with a ring pipe connecting pipe (17), and the end of the ring pipe connecting pipe (17) away from the conveying ring pipe (16) is connected with another conveying ring pipe (16).

7. The flue gas denitration equipment for improving denitration efficiency according to claim 2, characterized in that: The middle part of the limiting plate (9) is flat, the edge of the limiting plate (9) is tilted upward, and the limiting ring (10) is in the shape of a ring extending downward as a whole. The outer side of the bottom of the limiting ring (10) is fixedly connected to the inner side of the device housing (1), and the top of the limiting ring (10) is located near the edge of the limiting plate (9).

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