Denitrification ammonia spraying nozzle for reducing scaling blockage

Abstract

The utility model discloses a denitration ammonia spraying nozzle for reducing scaling blockage, which relates to the field of denitration ammonia spraying and comprises a denitration ammonia spraying pipe, a plurality of accelerating pipes are arranged at one end of the denitration ammonia spraying pipe, a blowing component is arranged at one end, far away from the denitration ammonia spraying pipe, of each accelerating pipe, and a plurality of gas spraying pipes are arranged at one end of the denitration ammonia spraying pipe. A limiting ring is arranged on the outer side of the air spraying pipe. According to the utility model, the denitration ammonia spraying pipe is arranged, and the accelerating pipe is matched with the spraying assembly, so that ash balls accumulated around the ammonia spraying nozzle can be conveniently blown off through the accelerating pipe and the spraying assembly when the denitration ammonia spraying pipe is used, and the ash balls are prevented from being scaled and blocked, thereby ensuring smooth ammonia spraying and stable emission; and meanwhile, the application range of the denitration ammonia spraying nozzle is widened by adjusting the cooperation of the accelerating tube and the injection assembly.

Description

Technical Field

[0001] The utility model relates to the field of denitrification ammonia spraying, in particular to a denitrification ammonia spraying nozzle for reducing scaling and clogging. Background Art

[0002] Float glass is a flat glass produced by the float process. In the production process of molten glass, some gas bubbles will be generated. If they are not removed, they will remain in the final glass product, affecting the transparency and overall quality of the glass. The degassing ammonia injection is to inject a small amount of ammonia into the molten glass, and use the ammonia to react with some components in the molten glass to promote the rise and dissipation of bubbles, thereby improving the purity and quality of the glass.

[0003] However, during the long-term operation of the denitrification treatment facilities, since the denitrification agent ammonia is sprayed into the flue through the ammonia nozzle at room temperature, condensation will occur around the ammonia nozzle when the ammonia and ash moisture in the flue gas come into instantaneous contact, forming impurity ash clusters around the ammonia nozzle. As the operating time increases, the impurity ash clusters accumulate more and more, causing blockage, which in turn seriously affects the ammonia spraying amount and denitrification efficiency during float glass production.

[0004] For example, Chinese patent CN216703942U discloses an out-of-stock ammonia injection branch pipe system, including an ammonia injection branch pipe, a slide rail, a flange plate and a flue, etc. The flange plate is removed from the outer wall of the flue, and the ammonia injection branch pipe is pulled out of the flue and then cleaned, thereby avoiding the safety hazards caused by online cleaning. However, the above-mentioned out-of-stock ammonia injection branch pipe system needs to be frequently cleaned when in use, which makes the convenience of the out-of-stock ammonia injection pipe unsatisfactory when in use. Moreover, when the out-of-stock ammonia injection pipe is not cleaned in time, it is very easy to cause the out-of-stock ammonia injection pipe to be clogged due to ash and scaling, which makes the effect of the out-of-stock ammonia injection unsatisfactory when in use.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related art, the utility model proposes a denitrified ammonia injection nozzle for reducing scaling and clogging, so as to overcome the above-mentioned technical problems existing in the existing related art.

[0007] To this end, the specific technical solutions adopted by the utility model are as follows:

[0008] A denitrification ammonia spray nozzle for reducing scaling and clogging comprises a denitrification ammonia spray pipe, one end of which is provided with a plurality of accelerating tubes, and the end of the accelerating tube away from the denitrification ammonia spray pipe is provided with a spraying assembly.

[0009] Furthermore, in order to facilitate the spraying of ash agglomerates through the ammonia spraying pipe, a plurality of spraying pipes are arranged at one end of the ammonia spraying pipe, and a limiting ring is arranged on the outer side of the spraying pipe.

[0010] Furthermore, in order to facilitate the installation and fixation of the acceleration tube, the acceleration tube includes an assembly ring arranged at one end of the jet tube, and the assembly ring cooperates with the jet tube, a tapered tube is arranged at the end of the assembly ring away from the jet tube, a shrinkage tube is arranged at the end of the tapered tube away from the assembly ring, an ejection tube is arranged at the end of the shrinkage tube away from the tapered tube, and a connecting ring is arranged at the end of the ejection tube away from the shrinkage tube.

[0011] Furthermore, in order to facilitate the adjustment of the spray assembly, the spray assembly includes a mounting ring arranged on the outside of the connecting ring, an adjustment ring is arranged at one end of the mounting ring close to the connecting ring, a spray pipe is arranged at the other end of the mounting ring, a plurality of first diffusion holes are opened in the middle of the spray pipe, and a first collecting hole is opened at the end of the spray pipe away from the mounting ring. The spray assembly also includes a splicing ring arranged on the outside of the mounting ring, a sleeve pipe is arranged at one end of the splicing ring, a plurality of second diffusion holes are opened in the middle of the sleeve pipe, and a second collecting hole is opened at one end of the sleeve pipe away from the splicing ring. The second diffusion holes cooperate with the first diffusion holes, and the first collecting hole cooperates with the second collecting hole.

[0012] The beneficial effects of the utility model are:

[0013] 1. By setting up a de-ammonia spray pipe and using the cooperation of the acceleration tube and the spray assembly, it is easy to blow off the ash accumulated around the ammonia spray nozzle through the acceleration tube and the spray assembly when the de-ammonia spray pipe is in use to prevent it from scaling and clogging, thereby ensuring smooth ammonia spraying and stable data discharge. At the same time, by adjusting the cooperation of the acceleration tube and the spray assembly, the application range of the de-ammonia spray nozzle is improved.

[0014] 2. By setting up the jet pipe and using the cooperation of the limit ring and the assembly ring, the out-of-stock ammonia spray pipe can be easily automatically sprayed and cleaned, thereby improving the effect during use. At the same time, a Laval tube is formed by a tapered tube, a contraction tube and a spray tube to increase the flow rate of the gas during spraying, thereby greatly improving the effect during spraying.

[0015] 3. By setting the installation ring, the spray assembly can be easily installed at one end of the spray pipe, which improves the convenience of use and installation. At the same time, by adjusting the first diffusion hole and the second diffusion hole, the gas discharge mode during spraying is changed, and the use range of the denitrification ammonia spraying is improved. The cooperation of the installation ring and the splicing ring makes the spray assembly easy to disassemble and adjust, thereby improving the use efficiency of the spray assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a denitrification ammonia spray nozzle for reducing scaling and clogging according to an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional view of a denitrified ammonia spray nozzle for reducing scaling and clogging according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of a denitrification ammonia injection pipe in a denitrification ammonia injection nozzle for reducing scaling and clogging according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of a local structure of a denitrification ammonia spray nozzle for reducing scaling and clogging according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of a spray assembly in a denitrified ammonia spray nozzle for reducing scaling and clogging according to an embodiment of the utility model;

[0022] Figure 6 It is a sectional view of the three-dimensional structure of a spray assembly in a denitrified ammonia spray nozzle for reducing scaling and clogging according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Out-of-stock ammonia spray pipe; 11. Jet pipe; 12. Limiting ring; 2. Accelerating tube; 21. Assembly ring; 22. Conical tube; 23. Contraction tube; 24. Spray pipe; 25. Connecting ring; 3. Spray assembly; 31. Mounting ring; 32. Adjusting ring; 33. Spray pipe; 34. First diffusion hole; 35. First collecting hole; 36. Splicing ring; 37. Sleeve tube; 38. Second diffusion hole; 39. Second collecting hole. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a denitrified ammonia injection nozzle for reducing scaling and clogging is provided.

[0027] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 6As shown, the denitrification ammonia injection nozzle for reducing scaling and clogging according to an embodiment of the utility model includes a denitrification ammonia injection pipe 1, one end of which is provided with a plurality of acceleration tubes 2, and the end of the acceleration tube 2 away from the denitrification ammonia injection pipe 1 is provided with a spraying assembly 3.

[0028] With the help of the above technical scheme, by setting up the de-ammonia injection pipe 1 and utilizing the cooperation of the acceleration pipe 2 and the blowing assembly 3, the de-ammonia injection pipe 1 can be used to blow off the ash accumulated around the ammonia nozzle through the acceleration pipe 2 and the blowing assembly 3 to prevent the ash from scaling and clogging, thereby ensuring smooth ammonia injection and stable emission. At the same time, by adjusting the cooperation of the acceleration pipe 2 and the blowing assembly 3, the application range of the de-ammonia injection nozzle is improved.

[0029] In one embodiment, for the above-mentioned destocking ammonia injection pipe 1, a plurality of injection pipes 11 are arranged at one end of the destocking ammonia injection pipe 1, and a limiting ring 12 is arranged on the outer side of the injection pipe 11. The accelerating tube 2 includes an assembly ring 21 arranged at one end of the injection pipe 11, the assembly ring 21 is threadedly connected to the injection pipe 11, and the assembly ring 21 cooperates with the injection pipe 11, a tapered tube 22 is arranged at one end of the assembly ring 21 away from the injection pipe 11, a shrink tube 23 is arranged at one end of the tapered tube 22 away from the assembly ring 21, a spray pipe 24 is arranged at one end of the shrink tube 23 away from the tapered tube 22, and a connecting ring 25 is arranged at one end of the spray pipe 24 away from the shrink tube 23.

[0030] The working principle of the denitrification ammonia injection pipe 1 is as follows: the assembly ring 21 is sleeved on the outside of the injection pipe 11, and the injection assembly 3 is installed. After the installation is completed, the injected gas passes through the tapered tube 22 and the contraction tube 23 to contract the gas flow space, thereby increasing the speed of the gas when discharged. The gas discharged from the contraction tube 23 is further accelerated through the ejection pipe 24, and the accelerated gas is sprayed through the injection assembly 3 to clean up the ash clumps generated by the denitrification ammonia injection.

[0031] In one embodiment, for the above-mentioned blowing assembly 3, the blowing assembly 3 includes a mounting ring 31 arranged on the outside of the connecting ring 25, the mounting ring 31 is threadedly connected to the connecting ring 25, an adjusting ring 32 is arranged at one end of the mounting ring 31 close to the connecting ring 25, a blowing pipe 33 is arranged at the other end of the mounting ring 31, a plurality of first diffusion holes 34 are opened in the middle of the blowing pipe 33, and a first collecting hole 35 is opened at one end of the blowing pipe 33 away from the mounting ring 31, the blowing assembly 3 also includes a splicing ring 36 arranged on the outside of the mounting ring 31, the mounting ring 31 is threadedly connected to the splicing ring 36, a sleeve tube 37 is arranged at one end of the splicing ring 36, a plurality of second diffusion holes 38 are opened in the middle of the sleeve tube 37, a second collecting hole 39 is opened at one end of the sleeve tube 37 away from the splicing ring 36, the second diffusion holes 38 cooperate with the first diffusion holes 34, and the first collecting hole 35 cooperates with the second collecting hole 39.

[0032] The working principle of the spray assembly 3 is as follows: the mounting ring 31 is installed on the outside of the connecting ring 25, and the sleeve tube 37 is installed on the outside of the mounting ring 31. The second diffusion hole 38 and the first diffusion hole 34 are staggered and connected or correspondingly connected to set the spray effect of the spray assembly 3 according to needs. After the adjustment is completed, the gas accelerated by the accelerating tube 2 is discharged through the second collecting hole 39, the first collecting hole 35, the second diffusion hole 38 and the first diffusion hole 34 for spraying.

[0033] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0034] In actual application, the accelerating tube 2 is sleeved on the outside of the denitrification ammonia injection pipe 1, and the injection assembly 3 is installed, so that during the long-term operation of the denitrification treatment facility, the denitrification agent ammonia is sprayed into the flue at room temperature through the ammonia nozzle, and the flue gas temperature is about 350°C, and the moisture content in the flue gas is about 12%. When the ammonia gas and the ash moisture in the flue gas come into instantaneous contact, impurity ash clumps are formed. The flow space of the injection gas is contracted by the accelerating tube 2 to increase the speed of the gas when it is discharged. The accelerated gas is sprayed through the injection assembly 3 to clean up the ash clumps generated by the denitrification ammonia injection.

[0035] In summary, with the aid of the above-mentioned technical scheme of the utility model, by setting up the de-ammonia injection pipe 1 and utilizing the cooperation of the acceleration tube 2 and the blowing assembly 3, the de-ammonia injection pipe 1 can be used to blow off the ash accumulated around the ammonia nozzle through the acceleration tube 2 and the blowing assembly 3 to prevent the ash from scaling and clogging, thereby ensuring smooth ammonia injection and stable emission. At the same time, by adjusting the cooperation of the acceleration tube 2 and the blowing assembly 3, the application range of the de-ammonia injection nozzle is improved.

[0036] In addition, by providing the jet pipe 11 and utilizing the cooperation of the limit ring 12 and the assembly ring 21, the loose ammonia spray pipe can be easily automatically sprayed and cleaned, thereby improving the effect during use. At the same time, a Laval tube is formed by the tapered tube 22, the contraction tube 23 and the ejection tube 24, thereby increasing the flow rate of the gas during spraying, thereby greatly improving the effect during spraying.

[0037] In addition, by providing the mounting ring 31, the spray assembly can be easily installed at one end of the spray pipe 11, thereby improving the convenience of use and installation. At the same time, by adjusting the first diffusion hole 34 and the second diffusion hole 38, the gas discharge method during spraying is changed, thereby improving the use range of the denitrification ammonia spraying. Moreover, through the cooperation of the mounting ring 31 and the splicing ring 36, the spray assembly 3 can be easily disassembled and adjusted, thereby improving the use efficiency of the spray assembly 3.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A denitrified ammonia spray nozzle for reducing scaling and clogging, characterized in that: The invention comprises a denitrified ammonia injection pipe (1), one end of which is provided with a plurality of accelerating pipes (2), and one end of which is away from the denitrified ammonia injection pipe (1) is provided with a spraying assembly (3).

2. A denitrified ammonia spray nozzle for reducing scaling and clogging according to claim 1, characterized in that: A plurality of injection pipes (11) are provided at one end of the denitrified ammonia injection pipe (1), and a limiting ring (12) is provided on the outer side of the injection pipe (11).

3. A denitrified ammonia spray nozzle for reducing scaling and clogging according to claim 2, characterized in that: The accelerating tube (2) comprises an assembly ring (21) arranged at one end of the jet tube (11), and the assembly ring (21) cooperates with the jet tube (11), and a conical tube (22) is arranged at one end of the assembly ring (21) away from the jet tube (11); A shrink tube (23) is provided at one end of the conical tube (22) away from the assembly ring (21), a spray tube (24) is provided at one end of the shrink tube (23) away from the conical tube (22), and a connecting ring (25) is provided at one end of the spray tube (24) away from the shrink tube (23).

4. A denitrified ammonia spray nozzle for reducing scaling and clogging according to claim 3, characterized in that: The spray assembly (3) comprises a mounting ring (31) arranged outside the connecting ring (25); an adjusting ring (32) is arranged at one end of the mounting ring (31) close to the connecting ring (25); a spray pipe (33) is arranged at the other end of the mounting ring (31); a plurality of first diffusion holes (34) are arranged in the middle of the spray pipe (33); and a first collecting hole (35) is arranged at one end of the spray pipe (33) away from the mounting ring (31).

5. A denitrified ammonia spray nozzle for reducing scaling and clogging according to claim 4, characterized in that: The spray assembly (3) further comprises a splicing ring (36) arranged outside the mounting ring (31); a sleeve tube (37) is arranged at one end of the splicing ring (36); a plurality of second diffusion holes (38) are opened in the middle of the sleeve tube (37); and a second collecting hole (39) is opened at one end of the sleeve tube (37) away from the splicing ring (36).

6. A denitrified ammonia spray nozzle for reducing scaling and clogging according to claim 5, characterized in that: The second diffusion hole (38) cooperates with the first diffusion hole (34), and the first collection hole (35) cooperates with the second collection hole (39).

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