Deacidification tower inner wall inhibition, hardening cleaning and auxiliary deacidification system

Abstract

The utility model relates to a deacidification tower inner wall inhibition, hardening cleaning and auxiliary deacidification system which comprises a tower body, the rotary mist sprayer is rotationally mounted in the center of the top of the tower body and is used for spraying lime slurry, alkali and flue gas cooling water to cool and deacidify the flue gas; the spray gun components are circumferentially and uniformly distributed at the top edge of the tower body; the soot blowing assemblies are arranged along the circumferential surface of the tower body at intervals; the spray gun assembly is arranged at the top of the tower body, cooling water is continuously sprayed into the tower body to cool and shrink the inner wall of the tower body, so that dust on the inner wall of the tower body is inhibited or removed, and the dust on the inner wall of the tower body is regularly cleaned through the dust blowing assembly, so that the dust is prevented from scaling and caking on the inner wall of the tower body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a deacidification tower technical field, specifically to a deacidification tower inner wall inhibits, and the system of cleaning and auxiliary deacidification of hardening. BACKGROUND

[0002] As a main method of treating dangerous waste, waste incineration can achieve the purpose of reduction, harmlessness and resource utilization, and is the most effective way of disposing dangerous waste. When the acid gases in the incineration flue gas include sulfur dioxide, hydrogen fluoride, nitrogen oxides and carbon monoxide, these substances need to be treated to reduce the harm to the atmosphere caused by direct emission of these substances into the atmosphere.

[0003] The deacidification tower sprays lime slurry, caustic soda and flue gas cooling water through a rotary atomizer to cool and deacidify the flue gas. During operation, the lime slurry and flue gas cooling water sprayed by the atomizer will adhere to the dust carried in the flue gas and harden inside the reaction tower, and the thickness will increase over time, which will have a great impact on the reaction efficiency. If a large amount of dust suddenly falls off, it will also easily cause a great impact load on the lower ash hopper, affecting the safe operation of the equipment. In addition, as the requirement for flue gas deacidification increases, the atomizer is sometimes overloaded, which leads to a decrease in the stability of the atomizer. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a deacidification tower inner wall inhibits, and the system of cleaning and auxiliary deacidification of hardening.

[0005] The utility model can achieve the purpose by the following technical scheme: a deacidification tower inner wall inhibits, and the system of cleaning and auxiliary deacidification of hardening, including tower body;Rotary atomizer, rotation is installed in the central position of tower body top, is used for spouting lime slurry, alkali and flue gas cooling water to cool and deacidify flue gas;Lance assembly, is evenly distributed in the edge position of tower body top;Blowing ash subassembly, interval is arranged along the circumferential surface of tower body.

[0006] Preferably, the ash hopper is provided with a rapping device.

[0007] Preferably, the lance assembly includes a mounting pipe installed on the top of the tower body, the mounting pipe is provided with an atomizing lance communicated with the inside of the tower body, one end of the atomizing lance is provided with an air inlet and a liquid inlet, and the other end of the atomizing lance is provided with a spray head.

[0008] Preferably, the atomizing lance is inclined by 15 degrees to the center line of the tower body.

[0009] Preferably, the atomizing lance is provided with a cooling sleeve pipe on the outside, and the cooling sleeve pipe is provided with a cooling gas inlet.

[0010] Preferably, the soot blowing assembly includes a sound wave generator, which has a sound wave duct extending into the interior of the tower body.

[0011] Preferably, the tower body has inspection holes on its tower wall.

[0012] The beneficial effects of this utility model are: by setting a spray gun assembly at the top of the tower body, cooling water is continuously sprayed into the tower body to cool and shrink the inner wall of the tower body, thereby inhibiting or removing dust from the inner wall of the tower body. Then, the dust on the inner wall of the tower body is cleaned regularly by the soot blowing assembly to ensure that dust does not accumulate and clump on the inner wall of the tower body. Attached Figure Description

[0013] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a deacidification tower inner wall inhibition, cleaning of caking and auxiliary deacidification system according to the present invention.

[0015] Figure 2 This is a schematic diagram of the spray gun assembly structure of a deacidification tower inner wall inhibition, cleaning of caking and auxiliary deacidification system according to the present invention.

[0016] Figure 3 This is a schematic diagram of the cooling sleeve structure of a deacidification tower inner wall suppression and cleaning system and an auxiliary deacidification system according to the present invention.

[0017] Figure 4 This invention relates to a structural schematic diagram of a soot blowing component for a deacidification tower inner wall suppression, cleaning, and auxiliary deacidification system.

[0018] The labels in the diagram represent: 1. Tower body; 2. Rotary mist sprayer; 3. Spray gun assembly; 301. Atomizing spray gun; 302. Air inlet; 303. Liquid inlet; 304. Nozzle; 305. Cooling sleeve; 306. Cooling air inlet; 307. Mounting pipe; 4. Soot blowing assembly; 401. Acoustic wave generator; 402. Acoustic waveguide; 5. Ash hopper; 6. Vibrator; 7. Inspection hole. Detailed Implementation

[0019] It should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1:

[0023] See Figures 1 to 4 As shown, the structure of this utility model is as follows: a deacidification tower inner wall inhibition, cleaning and auxiliary deacidification system, including a tower body 1; a rotary mist sprayer 2, rotatably installed at the center of the top of the tower body 1, used to spray lime slurry, alkali and flue gas cooling water to cool down and deacidify the flue gas; a spray gun assembly 3, evenly distributed around the top edge of the tower body 1; and a soot blowing assembly 4, spaced along the circumferential surface of the tower body 1. Specifically, the top of the tower body 1 is provided with a flue gas inlet pipe, through which high-temperature flue gas enters the tower body 1. Subsequently, lime slurry is sprayed into the tower body 1 through the rotary mist sprayer 2, making full contact with the flue gas and neutralizing the acidic gases in the flue gas to remove the acidic gases. At the same time, the spray gun assembly 3 continuously sprays cooling water into the tower body 1 to cool and shrink the inner wall of the tower body 1, thereby inhibiting or removing dust from the inner wall of the tower body 1. The soot blowing assembly 4 periodically cleans the dust from the inner wall of the tower body 1 to ensure that dust does not accumulate or clump on the inner wall of the tower body 1.

[0024] The bottom of the tower body 1 is equipped with an ash hopper 5. Vibrators 6 are installed at intervals on the side wall of the ash hopper 5. Specifically, after the calcium salt powder generated by the reaction of lime slurry with acidic gas and the unreacted lime slurry are dried in the ash hopper 5, the side wall of the ash hopper 5 is vibrated by the vibrators 6 to improve the fluidity of dust, unreacted lime powder and calcium salt generated in the flue gas, and to prevent scale formation in the ash hopper 5 from affecting the operation of the reaction tower.

[0025] The spray gun assembly 3 includes an installation pipe 307 installed at the top of the tower body 1. An atomizing spray gun 301 communicating with the interior of the tower body 1 is provided inside the installation pipe 307. One end of the atomizing spray gun 301 is provided with an air inlet 302 and a liquid inlet 303. The other end of the atomizing spray gun 301 is equipped with a nozzle 304. Specifically, during acid removal, cooling water is sprayed into the tower body 1 through the atomizing spray gun 301. The atomizing spray gun 301 is set at an angle of 15 degrees towards the center line of the tower body 1. Cooling water is continuously sprayed into the tower body 1 to cool down and shrink the inner wall of the tower body 1, thereby suppressing or removing dust from the inner wall of the tower body 1.

[0026] like Figure 2 , Figure 3 As shown, a cooling sleeve 305 is fitted on the outside of the atomizing spray gun 301. The cooling sleeve 305 is provided with a cooling gas inlet 306. Specifically, a cooler is connected to the cooling sleeve 305 through the cooling gas inlet 306 to cool the atomizing spray gun 301 and prevent the high-temperature flue gas from damaging the atomizing spray gun 301.

[0027] like Figure 4 As shown, the soot blowing assembly 4 includes a sound wave generating device 401. The sound wave generating device 401 is provided with a sound wave duct 402 extending into the tower body 1. Specifically, compressed air or nitrogen is connected to the sound wave generating device 401. The sound wave generating device 401 converts the air into sound wave energy. The sound wave energy is amplified through the sound wave duct 402 and introduced into the tower body 1. The sound waves are used to make the dust reciprocate and vibrate, thereby removing it from the surface of the tower wall. The soot blowing assembly 4 can be a soot blower, which is existing technology. Only its principle is briefly explained, and the specific structure is not described.

[0028] like Figure 1 As shown, the tower body 1 has an inspection hole 7 on its tower wall. Specifically, the inspection hole 7 is used to facilitate the maintenance of the reaction tower.

[0029] In practical use, high-temperature flue gas enters the guide tower 1 through the flue gas inlet pipe. Lime slurry is sprayed into the tower 1 through the rotating atomizer 2, making full contact with the flue gas and neutralizing the acidic gases in the flue gas to remove the acidic gases. At the same time, cooling water is sprayed into the atomizing spray gun 301. The atomizing spray gun 301 is set at an angle towards the center line of the tower 1. The continuously sprayed cooling water cools and contracts on the inner wall of the tower 1, inhibiting or removing dust from the inner wall of the tower 1. The dust on the inner wall of the tower 1 is cleaned periodically by the soot blower assembly to ensure that dust does not accumulate or clump on the inner wall of the tower 1. After the calcium salt powder generated by the reaction of lime slurry with acidic gases and the unreacted lime slurry are dried in the ash hopper 5, the side wall of the ash hopper 5 is vibrated by the vibrator 6 to improve the fluidity of dust, unreacted lime powder and calcium salt generated in the flue gas, and to prevent scale formation in the ash hopper 5 from affecting the operation of the reaction tower.

[0030] Example 2:

[0031] Based on Example 1, this embodiment addresses the issue of the rotary atomizer 2 being damaged or under repair. By shutting off the cooling water supply to the atomizing spray gun 301 and then connecting the lime slurry to the atomizing spray gun 301, the lime slurry is sprayed into the tower body 1 through the atomizing spray gun 301 instead of the rotary atomizer 2 for acid removal. This ensures that the acid removal reaction tower can operate normally even when the rotary atomizer 2 is damaged or under repair, thus avoiding a shutdown.

[0032] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A system for inhibiting and cleaning caking on the inner wall of a deacidification tower and assisting in deacidification, characterized in that: Including the tower body (1); A rotating mist sprayer (2) is rotatably installed at the center of the top of the tower body (1) and is used to spray lime slurry, caustic soda flakes and flue gas cooling water to cool down and deacidify the flue gas. The spray gun assembly (3) is evenly distributed around the top edge of the tower body (1); Soot blowing components (4) are spaced apart along the circumferential surface of the tower body (1).

2. The deacidification tower inner wall caking inhibition, cleaning, and auxiliary deacidification system according to claim 1, characterized in that: The bottom of the tower body (1) is provided with an ash hopper (5), and the side wall of the ash hopper (5) is equipped with vibrators (6) at intervals.

3. The deacidification tower inner wall inhibition, cleaning, and auxiliary deacidification system according to claim 1, characterized in that: The spray gun assembly (3) includes an installation pipe (307) installed on the top of the tower body (1). The installation pipe (307) is provided with an atomizing spray gun (301) that communicates with the inside of the tower body (1). One end of the atomizing spray gun (301) is provided with an air inlet (302) and a liquid inlet (303). The other end of the atomizing spray gun (301) is provided with a nozzle (304).

4. The deacidification tower inner wall inhibition, cleaning, and auxiliary deacidification system according to claim 3, characterized in that: The atomizing spray gun (301) is set at an angle of 15 degrees toward the center line of the tower body (1).

5. The deacidification tower inner wall inhibition, cleaning, and auxiliary deacidification system according to claim 3, characterized in that: The atomizing spray gun (301) is fitted with a cooling sleeve (305) on its outer side, and the cooling sleeve (305) is provided with a cooling gas inlet (306).

6. The deacidification tower inner wall inhibition, cleaning, and auxiliary deacidification system according to claim 1, characterized in that: The soot blowing assembly (4) includes a sound wave generator (401), which is provided with a sound wave duct (402) extending into the tower body (1).

7. The deacidification tower inner wall caking inhibition, cleaning, and auxiliary deacidification system according to claim 1, characterized in that: The tower body (1) has inspection holes (7) on its tower wall.

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