Efficient denitration device

Abstract

The utility model provides an efficient denitration device which comprises a reaction furnace and an injection mechanism, the injection mechanism comprises a conveying main pipe, a plurality of conveying sub-pipes, an ammonia water conveying pipe and an air conveying pipe, the ammonia water conveying pipe and the air conveying pipe are connected with one end, far away from the conveying sub-pipes, of the conveying main pipe, and each conveying sub-pipe is provided with a first control valve; a steering assembly is arranged at the end, stretching into the reaction furnace, of the conveying sub-pipe and comprises a fixing plate and a steering plate, the fixing plate is fixedly connected with the conveying sub-pipe, the faces, close to the steering plate, of the fixing plate are hollowed out to form a movable groove, and a universal joint is arranged in the movable groove. A first angle adjusting mechanism and a second angle adjusting mechanism are arranged between the fixing plate and the steering plate, a first through hole and a second through hole are formed in the fixing plate and the steering plate in a penetrating mode respectively, a water conveying hose is arranged between the first through hole and the second through hole and communicates with the conveying sub-pipe, and a monitor used for monitoring the content of NOX is arranged in the reaction furnace. According to the utility model, the problems of waste of ammonia water and incomplete reaction of NOX can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas dust removal, in particular to a high-efficiency denitration device. Background Art

[0002] Flue gas denitrification refers to the removal of the generated NO X Reduce to N2, thereby removing NO from flue gas X According to the treatment process, it can be divided into wet denitrification and dry denitrification. Some researchers at home and abroad have also developed a method to use microorganisms to treat NO X Exhaust method.

[0003] In the existing technology, the NO in the reactor is usually monitored. X The content of ammonia is controlled by the content of water, so that appropriate ammonia water can be sprayed to match NO X However, the general ammonia spray gun has the problems of short spray head and poor spray accuracy, which cannot be based on NO X The release position and release content of the ammonia spray gun can be used to effectively adjust the injection position of the ammonia spray gun, resulting in a large amount of ammonia waste or NO X The problem of not being fully covered by ammonia. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a high-efficiency denitrification device, which aims to solve the problem that the prior art generally monitors the NO in the reactor. X The content of ammonia is controlled by the content of water, so that appropriate ammonia water can be sprayed to match NO X However, the general ammonia spray gun has the problems of short spray head and poor spray accuracy, which cannot be based on NO X The release position and release content of the ammonia spray gun can be used to effectively adjust the injection position of the ammonia spray gun, resulting in a large amount of ammonia waste or NO X Technical issues with problems that cannot be fully covered by ammonia.

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

[0006] A high-efficiency denitration device comprises a reactor and an injection mechanism for inserting the reactor, wherein the injection mechanism comprises a conveying main pipe, a plurality of conveying sub-pipes connected to one end of the conveying main pipe close to the reactor, and an ammonia conveying pipe and an air conveying pipe connected to one end of the conveying main pipe away from the conveying sub-pipe, each of the conveying sub-pipes is provided with a first control valve, and a steering assembly is provided at one end of the conveying sub-pipe extending into the reactor, the steering assembly comprises a fixed plate and a steering plate, the fixed plate is fixedly connected to the conveying sub-pipe, a side of the fixed plate and the steering plate close to each other is hollowed out to form an active groove, a universal joint is provided in the active groove, a first angle adjustment mechanism and a second angle adjustment mechanism are provided between the fixed plate and the steering plate, the first angle adjustment mechanism and the second angle adjustment mechanism are respectively used to adjust the relative angles of the fixed plate and the steering plate in the X direction and the Y direction, the fixed plate and the steering plate are respectively penetrated with a first through hole and a second through hole, a water hose is provided between the first through hole and the second through hole, and the water hose is connected to the conveying sub-pipe, and a device for monitoring NO is provided in the reactor. X Content monitor.

[0007] According to one aspect of the above technical solution, the first angle adjustment mechanism includes a first articulated seat located above the fixed plate, a second articulated seat located above the steering plate, a first cylinder rotatably connected to the first articulated seat and the second articulated seat respectively, and a first rotating seat connecting the first articulated seat and the fixed plate, and the first articulated seat rotates relative to the fixed plate through the first rotating seat.

[0008] According to one aspect of the above technical solution, the second angle adjustment mechanism includes a third articulated seat located on the side of the fixed plate, a fourth articulated seat located on the side of the steering plate, a second cylinder rotatably connected to the third articulated seat and the fourth articulated seat respectively, and a second rotating seat connecting the third articulated seat and the fixed plate, and the third articulated seat rotates relative to the fixed plate through the second rotating seat.

[0009] According to one aspect of the above technical solution, the universal joint includes a first steering rod and a second steering rod arranged perpendicular to each other, the two ends of the first steering rod are respectively rotatably connected to the left and right sides of the steering plate, and the two ends of the second steering rod are respectively rotatably connected to the upper and lower ends of the fixed plate.

[0010] According to one aspect of the above technical solution, a second control valve is provided on the delivery main pipe.

[0011] According to one aspect of the above technical solution, a sealing assembly is provided on the outer side wall of the reaction furnace, and the conveying sub-pipe passes through the sealing assembly and is located inside the reaction furnace.

[0012] According to one aspect of the above technical solution, the sealing assembly includes a channel connected to the reaction furnace, and a sealing plate detachably connected to the channel, the conveying sub-pipe includes a cylindrical portion connected to the conveying main pipe, and a rod-shaped portion connected to the cylindrical portion, the cross-sectional size of the cylindrical portion is larger than the cross-sectional sizes of the steering assembly and the rod-shaped portion, the channel is used for the conveying sub-pipe to pass through, a sealing hole passes through the sealing plate, the aperture of the sealing hole is larger than the cross-sectional size of the steering assembly and the rod-shaped portion, and smaller than the cross-sectional size of the cylindrical portion.

[0013] According to one aspect of the above technical solution, the reactor is provided with a X The emitter.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By connecting the main delivery pipe to multiple delivery sub-pipes and then providing a first control valve on each delivery sub-pipe, the NO in a certain place in the reactor can be identified by the monitoring instrument. X The content is too high, and then the built-in algorithm is used to calculate which delivery pipe should be used to spray ammonia water, and the first control valve on the delivery pipe that does not need to spray ammonia water is closed synchronously, making the ammonia water spraying scheme more reasonable and improving the efficiency. By connecting the delivery main pipe to the ammonia delivery pipe and the air delivery pipe, the ammonia water can be sprayed in an atomized state, which can fully cover the NO X By setting a steering assembly at one end of the delivery sub-tube extending into the reactor, after determining the delivery sub-tube that needs to spray ammonia water, the first angle adjustment mechanism and the second angle adjustment mechanism can be controlled to adjust the relative angle between the steering plate and the fixed plate, thereby changing the direction in which the water delivery hose sprays ammonia water, and further optimizing the ammonia water spraying scheme so that the appropriate amount of ammonia water just completely covers the NO X , avoiding the waste of ammonia and NO X Incomplete response issues. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a high-efficiency denitration device in an embodiment of the utility model;

[0017] Figure 2 for Figure 1 The structural diagram of the middle injection mechanism;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the middle steering assembly;

[0019] Figure 4 for Figure 2 Exploded view of the structure at the middle steering assembly;

[0020] Figure 5 for Figure 1 A schematic diagram of the structure of the middle sealing component;

[0021] Description of main component symbols:

[0022]

[0023]

[0024] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] See also Figures 1 to 4, shown is a high-efficiency denitration device in an embodiment of the utility model, including a reactor 10, and an injection mechanism 20 for inserting the reactor 10, the injection mechanism 20 includes a delivery main pipe 21, a plurality of delivery sub-pipes 25 connected to one end of the delivery main pipe 21 close to the reactor 10, and an ammonia delivery pipe 23 and an air delivery pipe 24 connected to one end of the delivery main pipe 21 away from the delivery sub-pipe 25, each of the delivery sub-pipes 25 is provided with a first control valve 26, and the end of the delivery sub-pipe 25 extending into the reactor 10 is provided with a steering assembly 40, the steering assembly 40 includes a fixing plate 41, and a steering plate 42, the fixing plate 41 is fixed to the delivery sub-pipe 25 The fixed plate 41 and the steering plate 42 are connected, and a hollowed-out side near the fixed plate 41 and the steering plate 42 is formed into an active groove, and a universal joint 43 is provided in the active groove. A first angle adjustment mechanism and a second angle adjustment mechanism are provided between the fixed plate 41 and the steering plate 42, and the first angle adjustment mechanism and the second angle adjustment mechanism are respectively used to adjust the relative angles of the fixed plate 41 and the steering plate 42 in the X direction and the Y direction. The fixed plate 41 and the steering plate 42 are respectively penetrated with a first through hole and a second through hole, and a water hose 52 is provided between the first through hole and the second through hole, and the water hose 52 is connected to the delivery sub-tube 25. The reactor 10 is provided with a device for monitoring NO X The reactor 10 is provided with a monitor for discharging NO X The discharger (not shown in the figure)

[0029] It can be understood that the utility model connects the delivery main pipe 21 with a plurality of delivery sub-pipes 25, and then provides a first control valve 26 on each delivery sub-pipe 25, so that the NO in a certain place in the reactor 10 can be identified by the monitoring instrument. X The content is too high, and then the built-in algorithm is used to calculate which delivery sub-pipe 25 should be used to spray ammonia water, and the first control valve 26 on the delivery sub-pipe 25 that does not need to spray ammonia water is closed synchronously, so that the ammonia water spraying scheme is more reasonable and the efficiency is improved. By connecting the delivery main pipe 21 to the ammonia water delivery pipe 23 and the air delivery pipe 24, the ammonia water can be sprayed in an atomized state, which can fully cover the NO X By setting a steering assembly 40 at one end of the delivery sub-tube 25 extending into the reactor 10, after determining the delivery sub-tube 25 that needs to spray ammonia water, the first angle adjustment mechanism and the second angle adjustment mechanism can be controlled to adjust the relative angle between the steering plate 42 and the fixed plate 41, thereby changing the direction in which the water delivery hose 52 sprays ammonia water, and further optimizing the ammonia water spraying scheme so that an appropriate amount of ammonia water just completely covers the NO X , avoiding the waste of ammonia and NO X Incomplete response issues.

[0030] Specifically, in this embodiment, the first angle adjustment mechanism includes a first articulated seat 44 located above the fixed plate 41, a second articulated seat 45 located above the steering plate 42, a first cylinder 46 rotatably connected to the first articulated seat 44 and the second articulated seat 45, and a first rotating seat 47 connecting the first articulated seat 44 and the fixed plate 41, and the first articulated seat 44 rotates relative to the fixed plate 41 through the first rotating seat 47; the second angle adjustment mechanism includes a third articulated seat 48 located on the side of the fixed plate 41, a third articulated seat 49 located on the side of the steering plate 42, and a third articulated seat 41 located on the side of the steering plate 42. A fourth articulated seat 49, a second cylinder 50 rotatably connected to the third articulated seat 48 and the fourth articulated seat 49 respectively, and a second rotating seat 51 connecting the third articulated seat 48 and the fixed plate 41, the third articulated seat 48 rotates relative to the fixed plate 41 through the second rotating seat 51; the universal joint 43 includes a first steering rod 432 and a second steering rod 431 arranged perpendicular to each other, the two ends of the first steering rod 432 are rotatably connected to the left and right sides of the steering plate 42 respectively, and the two ends of the second steering rod 431 are rotatably connected to the upper and lower ends of the fixed plate 41 respectively.

[0031] It can be understood that when the Y direction of the ammonia spraying needs to be adjusted, the first cylinder 46 is started so that the first cylinder 46 pulls the steering plate 42 through the second articulated seat 45 to move upward or downward with the first steering rod 432 as the axis. During this period, the first cylinder 46 will also rotate synchronously on the first articulated seat 44 adaptively. When the steering plate 42 moves upward or downward, the third articulated seat 48 rotates adaptively on the second rotating seat 51.

[0032] Similarly, when it is necessary to adjust the X direction of the ammonia spraying, the second cylinder 50 is started so that the second cylinder 50 pulls the steering plate 42 through the fourth articulated seat 49 to move left or right with the second steering rod 431 as the axis. During this period, the second cylinder 50 will also adaptively rotate synchronously on the third articulated seat 48. When the steering plate 42 moves left or right, the first articulated seat 44 adaptively rotates on the first rotating seat 47.

[0033] Furthermore, a second control valve 22 is disposed on the delivery main pipe 21 .

[0034] It is understandable that when there is no need to spray the ammonia water, the ammonia water at the delivery main pipe 21 can be blocked by the second control valve 22 .

[0035] Furthermore, a sealing assembly 30 is provided on the outer wall of the reactor 10, and the conveying sub-pipe 25 passes through the sealing assembly 30 and is located in the reactor 10; the sealing assembly 30 includes a channel 31 connected to the reactor 10, and a sealing plate 32 detachably connected to the channel 31, the conveying sub-pipe 25 includes a cylindrical portion 252 connected to the conveying main pipe 21, and a rod-shaped portion 251 connected to the cylindrical portion 252, the cross-sectional size of the cylindrical portion 252 is larger than the cross-sectional size of the steering assembly 40 and the rod-shaped portion 251, the channel 31 is used for the conveying sub-pipe 25 to pass through, and a sealing hole 33 passes through the sealing plate 32, and the aperture of the sealing hole 33 is larger than the cross-sectional size of the steering assembly 40 and the rod-shaped portion 251, and smaller than the cross-sectional size of the cylindrical portion 252.

[0036] It can be understood that when the conveying sub-tube 25 needs to be inserted into the reactor 10, the rod-shaped portion 251 and the steering assembly 40 are first passed through the sealing hole 33 and the channel 31 until the cylindrical portion 252 rests on the surface of the sealing plate 32, and finally the sealing plate 32 and the channel 31 are fixed by fixing parts such as bolts 34.

[0037] In summary, the high-efficiency denitrification device in the above embodiment of the utility model, by connecting the delivery main pipe with a plurality of delivery sub-pipes, and then providing a first control valve on each delivery sub-pipe, can identify NO somewhere in the reactor through the monitoring instrument. X The content is too high, and then the built-in algorithm is used to calculate which delivery pipe should be used to spray ammonia water, and the first control valve on the delivery pipe that does not need to spray ammonia water is closed synchronously, making the ammonia water spraying scheme more reasonable and improving the efficiency. By connecting the delivery main pipe to the ammonia delivery pipe and the air delivery pipe, the ammonia water can be sprayed in an atomized state, which can fully cover the NO X By setting a steering assembly at one end of the delivery sub-tube extending into the reactor, after determining the delivery sub-tube that needs to spray ammonia water, the first angle adjustment mechanism and the second angle adjustment mechanism can be controlled to adjust the relative angle between the steering plate and the fixed plate, thereby changing the direction in which the water delivery hose sprays ammonia water, and further optimizing the ammonia water spraying scheme so that the appropriate amount of ammonia water just completely covers the NO X , avoiding the waste of ammonia and NO X Incomplete response issues.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A high-efficiency denitration device, characterized in that: The invention comprises a reactor and an injection mechanism for inserting the reactor, wherein the injection mechanism comprises a conveying main pipe, a plurality of conveying sub-pipes connected to one end of the conveying main pipe close to the reactor, and an ammonia conveying pipe and an air conveying pipe connected to one end of the conveying main pipe away from the conveying sub-pipe, each of the conveying sub-pipes is provided with a first control valve, and a steering assembly is provided at one end of the conveying sub-pipe extending into the reactor, the steering assembly comprises a fixing plate and a steering plate, the fixing plate is fixedly connected to the conveying sub-pipe, a side of the fixing plate and the steering plate close to each other is hollowed out to form an active groove, a universal joint is provided in the active groove, a first angle adjustment mechanism and a second angle adjustment mechanism are provided between the fixing plate and the steering plate, the first angle adjustment mechanism and the second angle adjustment mechanism are respectively used to adjust the relative angles of the fixing plate and the steering plate in the X direction and the Y direction, a first through hole and a second through hole are respectively penetrated on the fixing plate and the steering plate, a water hose is provided between the first through hole and the second through hole, and the water hose is connected to the conveying sub-pipe, and a control device for monitoring NO is provided in the reactor. X Content monitor.

2. The high-efficiency denitration device according to claim 1, characterized in that: The first angle adjustment mechanism includes a first articulated seat located above the fixed plate, a second articulated seat located above the steering plate, a first cylinder rotatably connected to the first articulated seat and the second articulated seat respectively, and a first rotating seat connecting the first articulated seat and the fixed plate, and the first articulated seat rotates relative to the fixed plate through the first rotating seat.

3. The high-efficiency denitration device according to claim 2, characterized in that: The second angle adjustment mechanism includes a third articulated seat located on the side of the fixed plate, a fourth articulated seat located on the side of the steering plate, a second cylinder rotatably connected to the third articulated seat and the fourth articulated seat respectively, and a second rotating seat connecting the third articulated seat and the fixed plate, and the third articulated seat rotates relative to the fixed plate through the second rotating seat.

4. The high-efficiency denitration device according to claim 1, characterized in that: The universal joint includes a first steering rod and a second steering rod which are vertically arranged. The two ends of the first steering rod are rotatably connected to the left and right sides of the steering plate respectively, and the two ends of the second steering rod are rotatably connected to the upper and lower ends of the fixed plate respectively.

5. The high-efficiency denitration device according to claim 1, characterized in that: The delivery main pipe is provided with a second control valve.

6. The high-efficiency denitration device according to claim 1, characterized in that: The outer side wall of the reaction furnace is provided with a sealing component, and the conveying sub-pipe passes through the sealing component and is located in the reaction furnace.

7. The high-efficiency denitration device according to claim 6, characterized in that: The sealing assembly includes a channel connected to the reaction furnace and a sealing plate detachably connected to the channel, the conveying sub-pipe includes a cylindrical portion connected to the conveying main pipe and a rod-shaped portion connected to the cylindrical portion, the cross-sectional size of the cylindrical portion is larger than the cross-sectional sizes of the steering assembly and the rod-shaped portion, the channel is used for the conveying sub-pipe to pass through, a sealing hole passes through the sealing plate, the aperture of the sealing hole is larger than the cross-sectional size of the steering assembly and the rod-shaped portion, and smaller than the cross-sectional size of the cylindrical portion.

8. The high-efficiency denitration device according to claim 1, characterized in that: The reactor is provided with a device for discharging NO X The emitter.

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