A nozzle for a flue gas cleaning tower of an incinerator

Abstract

The utility model discloses a kind of for incinerator flue gas purification tower's spray head, including connector, connector lower part is connected with spray head body, spray head body lower part is equipped with dust cover, spray head body periphery is equipped with multiple liquid outlet holes, dust cover includes second annular cover, second annular cover cover is arranged in spray head body periphery, dust cover can be up and down active, to make second annular cover cover liquid outlet hole or position lower than liquid outlet hole, the utility model is by being set up the dust cover of being able to up and down active, when spray head body is not used, dust cover can shield liquid outlet hole, when spray head body is used, can expose liquid outlet hole, greatly reduce the probability of liquid outlet hole blockage, improve the service life of spray head.

Description

Technical Field

[0001] This utility model relates to flue gas purification towers, and more specifically, to a nozzle for a flue gas purification tower for an incinerator. Background Technology

[0002] Waste incineration produces a large amount of toxic fumes, so a flue gas purification tower is needed to purify the fumes through liquid spraying. A flue gas purification tower is generally equipped with a booster pump, water sprayers, a tower body, an outlet pipe, an inlet pipe, and a circulating water tank. The booster pump pumps the filtered liquid in the circulating water tank to the water sprayers, and the liquid is sprayed through the nozzles. The sprayed liquid then falls back into the circulating water tank. The fumes enter the purification tower through the inlet pipe and are filtered by the nozzles in the water sprayers to remove suspended impurities. Finally, the treated fumes are discharged through the outlet pipe at the top.

[0003] Currently, the nozzles of flue gas purification towers are affected by smoke and dust. When the nozzles are not working, smoke and dust may adhere to the spray holes, which over time can clog some of the spray holes, resulting in a reduction in the spray range and flow rate of the nozzles. Therefore, there is an urgent need to improve this. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a nozzle for a flue gas purification tower of an incinerator. By setting a dust cover that can move up and down, the dust cover can block the liquid outlet when the nozzle body is not in use, and can expose the liquid outlet when the nozzle body is in use, which greatly reduces the probability of the liquid outlet being blocked and improves the service life of the nozzle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a nozzle for a flue gas purification tower of an incinerator, comprising a connector, a nozzle body connected to the lower part of the connector, a dust cover provided at the lower part of the nozzle body, a plurality of liquid outlet holes provided around the nozzle body, the dust cover comprising a second annular cover, the second annular cover being disposed around the nozzle body, the dust cover being movable up and down so that the second annular cover covers the liquid outlet holes or is positioned below the liquid outlet holes.

[0006] Furthermore, the connector includes an annular sleeve, and the dust cover has a guide rod inside. The guide rod passes through the nozzle body and has a stop block fixed at its upper end. The stop block can be inserted into the annular sleeve and seal against the inner wall of the annular sleeve. The stop block can move up and down so that the stop block is located inside the annular sleeve or detached from the annular sleeve.

[0007] Furthermore, the inner wall of the connector is provided with multiple guide ribs, which are located below the annular sleeve. The inner wall of the guide ribs is flush with the inner wall of the annular sleeve. When the stop block is located in the area enclosed by the guide ribs, the inside of the annular sleeve is connected to the liquid outlet and the position of the second annular cover is lower than the liquid outlet.

[0008] Furthermore, the nozzle body is provided with a guide platform inside, the guide rod passes through the guide platform, and a spring is sleeved on the outside of the guide rod. The lower end of the spring is sleeved on the outside of the guide platform and the upper end abuts against the lower part of the stop block.

[0009] Furthermore, the guide platform has a conical structure that is smaller at the top and larger at the bottom, and the liquid outlet is inclined downwards towards the outside of the nozzle body.

[0010] Furthermore, the guide rib includes multiple spaced first guide ribs and second guide ribs, the second guide rib has a notch, the inner wall of the second guide rib has a protrusion, the stop block has an annular groove on its periphery, and the stop block can pass over the protrusion so that the protrusion is inserted into the annular groove for limitation.

[0011] Furthermore, the lower part of the connector is provided with an annular rib, the nozzle body includes a first annular cover, the second annular cover is provided outside the first annular cover, the liquid outlet is located on the periphery of the first annular cover, and the annular rib is inserted into the first annular cover and threadedly connected to the first annular cover.

[0012] In summary, this utility model has the following beneficial effects:

[0013] When the purification tower is working, the liquid, pressurized by the booster pump, enters the annular sleeve and pushes the baffle down. The baffle lowers the dust cover, exposing the liquid outlet. The spring is compressed, and the annular sleeve connects with the nozzle body. The liquid can enter the nozzle body through the gaps in the guide ribs and spray out from the liquid outlet, achieving the spray purification of flue gas. When the purification tower stops working, the booster pump stops, the water pressure in the sprayer decreases, and the baffle rises under the action of the spring, thereby driving the dust cover to rise. The second annular cover covers the liquid outlet, effectively preventing dust from the cooling tower from entering the liquid outlet when the cooling tower is not working, greatly reducing the probability of liquid outlet blockage and helping to improve the service life of the nozzle body. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the first state of this embodiment;

[0015] Figure 2 This is a cross-sectional view of the second state of this embodiment;

[0016] Figure 3 This is a schematic diagram of the connector structure.

[0017] Reference numerals: 1. Connector; 11. Annular sleeve; 12. Annular rib; 13. First guide rib; 14. Second guide rib; 15. Notch; 16. Protrusion; 2. Nozzle body; 21. First annular cover; 22. Liquid outlet; 23. Guide platform; 3. Dust cover; 31. Second annular cover; 32. Guide rod; 4. Stop block; 41. Annular groove; 5. Spring; 6. Water sprayer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 3 As shown, this embodiment discloses a nozzle for an incinerator flue gas purification tower, including a connector 1. The connector 1 includes an annular sleeve 11, which is threadedly connected to a water sprayer 6. A nozzle body 2 is connected to the lower part of the connector 1. An annular rib 12 is provided at the lower part of the connector 1. The nozzle body 2 includes a first annular cover 21, and the annular rib 12 is inserted into and threadedly connected to the first annular cover 21. The connector 1 and the nozzle body 2 are connected by a thread, which facilitates the connection of the nozzle body 2. Disassembly and replacement: The nozzle body 2 is provided with multiple liquid outlet holes 22 on its periphery. The liquid outlet holes 22 are located on the periphery of the first annular cover 21. The liquid outlet holes 22 are inclined downward towards the outside of the nozzle body 2. When spraying and purifying the flue gas inside the purification tower, the booster pump (not shown in the figure) delivers the purification liquid to the water sprayer 6. The liquid in the water sprayer 6 enters the nozzle body 2 from the annular sleeve 11 and is finally sprayed out from the liquid outlet holes 22, thereby forming a water mist in the shape of an umbrella-shaped water curtain for purifying the flue gas.

[0020] The nozzle body 2 is provided with a dust cover 3 at its lower part. The dust cover 3 includes a second annular cover 31, which covers the periphery of the nozzle body 2. The dust cover 3 is movable up and down so that the second annular cover 31 covers the liquid outlet 22 or is positioned below the liquid outlet 22. Specifically, the second annular cover 31 covers the outside of the first annular cover 21. The dust cover 3 is provided with a guide rod 32 inside, which penetrates the nozzle body 2 and has a stop block 4 fixed at its upper end. The stop block 4 can be inserted into the annular sleeve 11 and seals against the inner wall of the annular sleeve 11. The stop block 4 is movable up and down so that the stop block 4 is positioned within the annular sleeve 11. The connector 1 has multiple guide ribs on its inner wall. The guide ribs are located below the annular sleeve 11 and are flush with the inner wall of the annular sleeve 11. When the stop block 4 is located in the area enclosed by the guide ribs, the inside of the annular sleeve 11 is connected to the liquid outlet 22 and the position of the second annular cover 31 is lower than the liquid outlet 22. The nozzle body 2 has a guide platform 23 inside. The guide platform 23 is a conical structure with a smaller top and a larger bottom. The guide rod 32 passes through the guide platform 23. A spring 5 is sleeved on the outside of the guide rod 32. The lower end of the spring 5 is sleeved on the outside of the guide platform 23 and the upper end abuts against the lower part of the stop block 4.

[0021] During operation, the purification tower utilizes a booster pump to pressurize the liquid within the water sprayer 6 pipe. Therefore, when the purification tower is working, the pressurized liquid, after entering the annular sleeve 11, pushes the baffle 4 downwards. The baffle 4 causes the dust cover 3 to descend, exposing the liquid outlet 22. The spring 5 is then compressed, forming a... Figure 2 In the state shown, the annular sleeve 11 is connected to the inside of the nozzle body 2, and the liquid can enter the nozzle body 2 from the gap of the guide rib and spray out from the liquid outlet 22 to achieve spray purification of the flue gas. When the purification tower stops working, the booster water pump stops working. At this time, the water pressure in the water sprayer 6 decreases, and the baffle 4 rises under the action of the spring 5, thereby driving the dust cover 3 to rise. The second annular cover 31 covers the liquid outlet 22, effectively preventing the dust in the cooling tower from entering the liquid outlet 22 when the cooling tower is not working, greatly reducing the probability of the liquid outlet 22 being blocked, and helping to improve the service life of the nozzle body 2.

[0022] The guide ribs include multiple spaced first guide ribs 13 and second guide ribs 14. Each second guide rib 14 has a notch 15 and a protrusion 16 on its inner wall. The stop block 4 has an annular groove 41 around its periphery. The stop block 4 can pass over the protrusion 16, allowing the protrusion 16 to be inserted into the annular groove 41 for positioning. There are three first guide ribs 13 and three second guide ribs 14, evenly distributed along the center of the joint 1. When the stop block 4 passes over the protrusion 16, the piece at the protrusion 16 can bend and deform towards the notch 15. When the protrusion 16 is inserted into the annular groove 41... When the plate is inside the groove 41, it returns to its original shape and causes the protrusion 16 to insert into the annular groove 41, thereby limiting the position of the stop block 4. When the liquid in the water sprayer 6 pushes the stop block 4 to the point where the protrusion 16 inserts into the annular groove 41, it is resisted by the protrusion 16 and the elastic force of the spring 5. The water pressure can no longer push the stop block 4 down. However, the elastic force of the spring 5 is greater than the deformation force of the plate at the protrusion 16. That is, when the water pressure disappears (when the purification tower stops working), the stop block 4 is affected by the elastic force of the spring 5 and can be pushed upward, causing the protrusion 16 to disengage from the annular groove 41.

[0023] When the water pressure fluctuates to a certain extent, without the above structure, the stop block 4 will rise under the action of the spring 5 when the water pressure decreases slightly. This will reduce the water passage between the annular sleeve 11 and the nozzle body 2, resulting in a reduction in the amount of liquid sprayed from the nozzle body 2. However, with the structure of the above-mentioned protrusion 16 and annular groove 41, when the protrusion 16 and annular groove 41 are in contact, even if the water pressure increases or decreases within a certain range, the position of the stop block 4 can remain unchanged due to the deformation force of the sheet at the protrusion 16, thereby reducing the impact of water pressure on the spraying effect.

[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A nozzle for an incinerator flue gas purification tower, characterized in that, The device includes a connector (1), the lower part of which is connected to a nozzle body (2). The lower part of the nozzle body (2) is provided with a dust cover (3). The nozzle body (2) is provided with multiple liquid outlet holes (22) around its periphery. The dust cover (3) includes a second annular cover (31). The second annular cover (31) covers the periphery of the nozzle body (2). The dust cover (3) can move up and down so that the second annular cover (31) covers the liquid outlet hole (22) or is positioned below the liquid outlet hole (22).

2. The nozzle for an incinerator flue gas purification tower according to claim 1, characterized in that, The connector (1) includes an annular sleeve (11). The dust cover (3) has a guide rod (32) inside. The guide rod (32) passes through the nozzle body (2) and has a stop block (4) fixed at its upper end. The stop block (4) can be inserted into the annular sleeve (11) and seal against the inner wall of the annular sleeve (11). The stop block (4) can move up and down so that the stop block (4) is located inside the annular sleeve (11) or detached from the annular sleeve (11).

3. A nozzle for an incinerator flue gas purification tower according to claim 2, characterized in that, The inner wall of the connector (1) is provided with multiple guide ribs. The guide ribs are located below the annular sleeve (11). The inner wall of the guide ribs is flush with the inner wall of the annular sleeve (11). When the stop block (4) is located in the area enclosed by the guide ribs, the inside of the annular sleeve (11) is connected to the liquid outlet (22) and the position of the second annular cover (31) is lower than the liquid outlet (22).

4. A nozzle for an incinerator flue gas purification tower according to claim 3, characterized in that, The nozzle body (2) is provided with a guide platform (23) inside. The guide rod (32) passes through the guide platform (23). A spring (5) is sleeved on the outside of the guide rod (32). The lower end of the spring (5) is sleeved on the outside of the guide platform (23) and the upper end abuts against the lower part of the stop block (4).

5. A nozzle for an incinerator flue gas purification tower according to claim 4, characterized in that, The guide platform (23) is a conical structure with a smaller top and a larger bottom, and the liquid outlet (22) is inclined downwards towards the outside of the nozzle body (2).

6. A nozzle for an incinerator flue gas purification tower according to claim 4, characterized in that, The guide ribs include multiple spaced first guide ribs (13) and second guide ribs (14). The second guide ribs (14) have notches (15) and protrusions (16) on their inner walls. The stop block (4) has an annular groove (41) on its periphery. The stop block (4) can pass over the protrusions (16) so that the protrusions (16) can be inserted into the annular groove (41) for a limited position.

7. A nozzle for an incinerator flue gas purification tower according to claim 1, characterized in that, The connector (1) is provided with an annular rib (12) at the lower part. The nozzle body (2) includes a first annular cover (21). The second annular cover (31) covers the outside of the first annular cover (21). The liquid outlet (22) is located on the periphery of the first annular cover (21). The annular rib (12) is inserted into the first annular cover (21) and threadedly connected to the first annular cover (21).

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