Cement scr ammonia compensation lance

Abstract

The utility model provides a cement SCR ammonia compensation spray gun relates to ammonia compensation spray gun field, including the spray gun main part, including the gun body, the spray head who communicates in the one end of gun body, set up in the other end of gun body and be used for to the filter of ammonia water solution miscellaneous component, set up in one side of filter miscellaneous component and be used for conveying ammonia water's liquid delivery pipe, and communicate in the bottom of gun body and be used for conveying compressed air's gas delivery pipe, filter miscellaneous component, including the cap, set up in the miscellaneous cover of cap bottom, the utility model discloses can filter out the impurity in ammonia water solution efficiently through the additional filter miscellaneous component, through the liquid delivery pipe cooperation liquid inlet pipe can make ammonia water enter filter cartridge and filter, filter cartridge can intercept the impurity particle in ammonia water solution, and pure ammonia water then passes through the connecting cylinder and liquid outlet pipe and enters the gun body, ensure that ammonia water passes through the spray head and atomizes into tiny particle smoothly, thereby improved denitration efficiency, effectively alleviated the situation that the serious influence denitration effect because of the blockage.

Description

Technical Field

[0001] This utility model belongs to the field of ammonia compensation spray guns, specifically a cement SCR ammonia compensation spray gun. Background Technology

[0002] The cement SCR ammonia compensation spray gun is one of the key pieces of equipment in the selective catalytic reduction denitrification system of cement plants. It is mainly used to accurately spray diluted ammonia water or ammonia gas in the form of mist into the flue gas containing nitrogen oxides, ensuring that the ammonia water or ammonia gas reacts fully with the flue gas under the action of the catalyst, thereby reducing the NOx emission concentration in the flue gas and achieving efficient denitrification.

[0003] In existing cement SCR ammonia compensation spray guns, diluted ammonia and compressed air are first delivered to the spray gun through pipelines. The compressed air atomizes the ammonia into fine particles. These particles are then evenly sprayed into the inlet or flue of the SCR reactor, where they mix thoroughly with the NOx-containing flue gas. Finally, under the action of a catalyst, the ammonia or ammonia gas reacts chemically with the NOx to produce nitrogen and water, thus achieving denitrification. However, in actual use, due to the presence of small impurities in the ammonia solution, these impurities gradually accumulate and form blockages at the nozzles as the ammonia solution is transported to the inside of the spray gun. This blockage significantly reduces or even completely interrupts the ammonia spray, severely affecting the denitrification effect.

[0004] In summary, this utility model provides a cement SCR ammonia compensation spray gun to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A cement SCR ammonia compensation spray gun, including

[0007] The spray gun body includes a gun body, a nozzle connected to one end of the gun body, a filter assembly disposed at the other end of the gun body for filtering ammonia solution, a liquid delivery pipe disposed on one side of the filter assembly for delivering ammonia solution, and an air delivery pipe connected to the bottom of the gun body for delivering compressed air.

[0008] The impurity filtration assembly includes a cap, an impurity collection cover disposed at the bottom of the cap, a connecting cylinder fixedly connected to the top of the inner cavity of the cap, a filter cylinder threadedly connected to the inner cavity of the connecting cylinder, an outlet pipe communicating with one side of the cap, and an inlet pipe communicating with one side of the connecting cylinder.

[0009] Furthermore, in this utility model, the surfaces of the inlet pipe and the outlet pipe are both threaded with threaded sleeves, and one end of the gun body and the infusion pipe are both located in the inner cavity of the threaded sleeve and are threadedly connected to the inner cavity of the threaded sleeve.

[0010] Furthermore, in this utility model, one end of the liquid outlet pipe and one end of the liquid inlet pipe are both connected to a clamping sleeve. The end of the clamping sleeve away from the liquid outlet pipe and the liquid inlet pipe extends into the inner cavity of the gun body and the infusion pipe, respectively, and is movably connected to the inner cavity of the gun body and the infusion pipe.

[0011] Furthermore, in this utility model, sealing rings are fixedly connected to the surfaces of both of the cartridges, and the two sealing rings are in contact with the inner wall of the gun body and the inner wall of the infusion tube, respectively. The outlet tube, cartridges and gun body are connected, and the infusion tube, cartridges and inlet tube are connected.

[0012] Furthermore, in this utility model, the top of the dust collection cover extends into the inner cavity of the cap and is threadedly connected to the inner cavity of the cap. A sealing ring is fixedly connected to the bottom of the cap, and the inner ring of the sealing ring is in contact with the surface of the dust collection cover.

[0013] Beneficial effects: This utility model has the following beneficial effects:

[0014] This invention can efficiently filter out impurities in ammonia solution by adding a filter component. The ammonia solution can be filtered into the filter cartridge through the inlet pipe and the infusion pipe. The filter cartridge can trap impurity particles in the ammonia solution, while the pure ammonia solution enters the gun body through the connecting tube and the outlet pipe, ensuring that the ammonia solution passes smoothly through the nozzle and is atomized into tiny particles, thereby improving the denitrification efficiency and effectively alleviating the situation where severe blockage affects the denitrification effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the filter assembly structure of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the cap of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention in its separated state from the liquid outlet pipe and gun body, and the liquid inlet pipe and delivery pipe.

[0019] In the picture:

[0020] 100. Spray gun body; 110. Gun body; 120. Nozzle; 130. Filter assembly; 131. Cap; 132. Collection hood; 133. Connecting cylinder; 134. Filter cartridge; 135. Liquid outlet pipe; 136. Liquid inlet pipe; 137. Screw sleeve; 138. Clip sleeve; 139. Sealing ring; 140. Infusion pipe; 150. Gas infusion pipe. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a cement SCR ammonia compensation spray gun, including...

[0024] The spray gun body 100 includes a gun body 110, a nozzle 120 connected to one end of the gun body 110, a filter assembly 130 disposed at the other end of the gun body 110 for filtering ammonia solution, a delivery pipe 140 disposed on one side of the filter assembly 130 for delivering ammonia solution, and an air delivery pipe 150 connected to the bottom of the gun body 110 for delivering compressed air.

[0025] The impurity filtration assembly 130 includes a cap 131, an impurity collection hood 132 disposed at the bottom of the cap 131, a connecting cylinder 133 fixedly connected to the top of the inner cavity of the cap 131, a filter cylinder 134 threadedly connected to the inner cavity of the connecting cylinder 133, an outlet pipe 135 communicating with one side of the cap 131, and an inlet pipe 136 communicating with one side of the connecting cylinder 133.

[0026] like Figure 1-4As shown, diluted ammonia water can be filtered through the inlet pipe 136 and the inlet pipe 140. The filter pipe 134 can trap impurity particles in the ammonia water solution, while the pure ammonia water enters the gun body 110 through the connecting pipe 133 and the outlet pipe 135. This ensures that the ammonia water passes smoothly through the nozzle 120 and is atomized into tiny particles, thereby improving the denitrification efficiency and effectively alleviating the situation where severe blockage affects the denitrification effect. The impurity collection hood 132 can collect the filtered impurities for unified treatment later. At the same time, compressed air enters the gun body 110 through the air supply pipe 150 and mixes with the ammonia water at the nozzle 120, atomizing the ammonia water into tiny particles. These tiny particles are evenly sprayed into the inlet or flue of the SCR reactor under the action of the nozzle 120, and fully mix and react with the flue gas containing NOx to generate nitrogen and water, thereby achieving the purpose of denitrification.

[0027] Example 2

[0028] Reference Figure 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0029] In this embodiment, the surfaces of the inlet pipe 136 and the outlet pipe 135 are both threaded with a threaded sleeve 137. One end of the gun body 110 and the infusion pipe 140 are both located in the inner cavity of the threaded sleeve 137 and are threadedly connected to the inner cavity of the threaded sleeve 137.

[0030] The top of the impurity collection hood 132 extends into the inner cavity of the cap 131 and is threadedly connected to the inner cavity of the cap 131. A sealing ring 139 is fixedly connected to the bottom of the cap 131. The inner ring of the sealing ring 139 contacts the surface of the impurity collection hood 132. The impurity collection hood 132 is made of transparent material. The filter cartridge 134 uses a ceramic membrane filter element.

[0031] like Figure 2-4 As shown, the threaded connection between the inlet pipe 136 and the outlet pipe 135 and the screw sleeve 137 not only ensures the tightness and stability of the connection and prevents ammonia leakage, but also enables the detachable connection between the inlet pipe 136, the outlet pipe 135 and the gun body 110 and the delivery pipe 140, facilitating installation and subsequent disassembly and maintenance. The threaded connection between the impurity collection hood 132 and the cap 131 allows the impurity collection hood 132 to be easily disassembled for cleaning or replacement. The design of the sealing ring 139 ensures the sealing between the impurity collection hood 132 and the cap 131, preventing ammonia leakage from the connection. Furthermore, the transparent material of the impurity collection hood 132 allows the operator to directly observe the accumulation of impurities inside the impurity collection hood 132, thereby promptly judging the filtration effect of the filter cartridge 134 and cleaning or replacing it when necessary.

[0032] Example 3

[0033] Reference Figure 2and 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0034] In this embodiment, one end of the liquid outlet pipe 135 and one end of the liquid inlet pipe 136 are both connected to a clamping sleeve 138. The end of the clamping sleeve 138 away from the liquid outlet pipe 135 and the liquid inlet pipe 136 extends into the inner cavity of the gun body 110 and the infusion pipe 140, respectively, and is movably connected to the inner cavity of the gun body 110 and the infusion pipe 140.

[0035] Both cartridges 138 are fixedly connected to sealing rings, and the two sealing rings are in contact with the inner wall of the gun body 110 and the inner wall of the infusion tube 140, respectively. The outlet tube 135, cartridges 138 and gun body 110 are connected, and the infusion tube 140, cartridges 138 and inlet tube 136 are connected.

[0036] like Figure 2 and 4 As shown, the clamp 138 serves as a connector between the outlet pipe 135 and the inlet pipe 136 and the gun body 110 and the delivery pipe 140. This design achieves a limiting effect when connecting the outlet pipe 135 and the inlet pipe 136 to the gun body 110 and the delivery pipe 140, facilitating the connection of the threaded sleeve 137 to the inlet pipe 136 and the outlet pipe 135. A sealing ring is fixedly connected to the surface of the clamp 138, forming a tight seal between the clamp 138 and the inner walls of the gun body 110 and the delivery pipe 140, effectively preventing ammonia leakage. The connection between the outlet pipe 135, the clamp 138 and the gun body 110, and the connection between the delivery pipe 140, the clamp 138 and the inlet pipe 136 ensures that the ammonia solution can flow smoothly and be filtered by the filter assembly 130, ultimately atomizing into tiny particles and being sprayed out.

[0037] In use, the infusion pipe 140 first transmits diluted ammonia water to the inner cavity of the inlet pipe 136. The inlet pipe 136 then transmits the ammonia water to the inner cavities of the cap 131 and the impurity collection hood 132. The ammonia water then enters the filter cartridge 134 for filtration. The filter cartridge 134 traps impurity particles in the ammonia water solution, while the impurities remain in the inner cavity of the impurity collection hood 132. The pure ammonia water then enters the gun body 110 through the connecting pipe 133 and the outlet pipe 135. This ensures that the ammonia water flows smoothly through the nozzle 120, improving the subsequent denitrification efficiency and effectively mitigating the situation where severe blockage affects the denitrification effect. Simultaneously, compressed air enters the gun body 110 through the air supply pipe 150. The ammonia is mixed with ammonia water at nozzle 120, atomizing the ammonia water into tiny particles. These tiny particles are evenly sprayed into the inlet or flue of the SCR reactor by the spray gun, and fully mixed with the flue gas containing NOx. Finally, under the action of the catalyst, a chemical reaction occurs to generate nitrogen and water, thereby achieving the purpose of denitrification. When it is necessary to remove the intercepted impurities, the impurity collection hood 132 is rotated. Since the impurity collection hood 132 and the cap 131 are threadedly connected, the impurity collection hood 132 will gradually separate from the cap 131 during the rotation process, so as to facilitate the treatment of the impurities collected in the impurity collection hood 132. At the same time, the filter cartridge 134 is exposed to the outside, which also facilitates personnel cleaning.

[0038] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A cement SCR ammonia compensation spray gun, characterized in that: include The spray gun body (100) includes a gun body (110), a nozzle (120) connected to one end of the gun body (110), a filter assembly (130) disposed at the other end of the gun body (110) for filtering ammonia solution, a delivery pipe (140) disposed on one side of the filter assembly (130) for delivering ammonia solution, and an air delivery pipe (150) connected to the bottom of the gun body (110) for delivering compressed air. The impurity filtration assembly (130) includes a cap (131), an impurity collection hood (132) disposed at the bottom of the cap (131), a connecting cylinder (133) fixedly connected to the top of the inner cavity of the cap (131), a filter cylinder (134) threadedly connected to the inner cavity of the connecting cylinder (133), an outlet pipe (135) communicating with one side of the cap (131), and an inlet pipe (136) communicating with one side of the connecting cylinder (133).

2. The cement SCR ammonia compensation spray gun as described in claim 1, characterized in that: The surfaces of the inlet pipe (136) and the outlet pipe (135) are threaded with threaded sleeves (137). One end of the gun body (110) and the infusion pipe (140) are located in the inner cavity of the threaded sleeve (137) and are threadedly connected to the inner cavity of the threaded sleeve (137).

3. The cement SCR ammonia compensation spray gun as described in claim 1, characterized in that: One end of the outlet pipe (135) and one end of the inlet pipe (136) are connected to a clamp (138). The end of the clamp (138) away from the outlet pipe (135) and the inlet pipe (136) extends into the inner cavity of the gun body (110) and the infusion pipe (140), respectively, and is movably connected to the inner cavity of the gun body (110) and the infusion pipe (140).

4. The cement SCR ammonia compensation spray gun as described in claim 3, characterized in that: Both of the two cartridges (138) are fixedly connected with sealing rings, and the two sealing rings are in contact with the inner wall of the gun body (110) and the inner wall of the infusion tube (140) respectively. The outlet tube (135), cartridges (138) and gun body (110) are connected, and the infusion tube (140), cartridges (138) and inlet tube (136) are connected.

5. The cement SCR ammonia compensation spray gun as described in claim 1, characterized in that: The top of the collection hood (132) extends into the inner cavity of the cap (131) and is threadedly connected to the inner cavity of the cap (131). A sealing ring (139) is fixedly connected to the bottom of the cap (131), and the inner ring of the sealing ring (139) contacts the surface of the collection hood (132).

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