Denitration spraying device for boiler

Abstract

The utility model belongs to the technical field of boiler flue gas desulfurization, and particularly relates to a denitration spraying device for a boiler, which comprises a spraying tank, slots are symmetrically arranged in the spraying tank, a desulfurization filling plate is slidably connected in each slot, an installation cavity is arranged in the spraying tank, a square breathable installation frame is arranged in the installation cavity, and a plurality of ventilation holes are formed in the square breathable installation frame. And an absorption ball is arranged in the square breathable mounting frame. Reaction liquid is sprayed to the corresponding desulfurization filling plates through the water pump and the atomizing nozzles, sulfide in flue gas is fully absorbed by the desulfurization filling plates and neutralized by the reaction liquid, and meanwhile, the sprayed reaction liquid flows back to the bottom of the spraying tank again, so that the reaction liquid is recycled, the energy utilization rate is increased, and the energy consumption is reduced; flue gas passes through the absorption ball and a plurality of through holes in the absorption ball, the flue gas drifting speed can be reduced, other harmful substances in the flue gas are absorbed, meanwhile, the desulfurization filling plate and the absorption ball can be conveniently and rapidly replaced, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler flue gas desulfurization technical field, concretely is a kind of boiler with denitration spraying device. BACKGROUND

[0002] Boiler with denitration spraying device is mainly used to reduce nitrogen oxides pollutants in boiler emission, help to meet environmental protection requirements.Nitrogen oxides are common pollutants in combustion process, have certain harmfulness, so denitration technology is widely used in industrial boiler.

[0003] Prior art has the following defects or problems: Prior art with the publication number: CN220715397U discloses a kind of boiler with denitration spraying device, including reaction tank, the both sides of reaction tank inner wall equidistant spacing is fixed with baffle, the side between baffle and reaction tank inner wall is left with flue gas passage, the number of baffle is at least four, the inner wall of reaction tank and located the upper portion of baffle is provided with spray pipe, the spray pipe is vertically arranged, and the side of spray pipe is provided with multiple atomizing nozzles, the spray pipe is communicated with water storage tank by water delivery assembly, the top of baffle is provided with recessed cavity, the bottom of reaction tank is provided with backing plate, the water tank is fixedly installed on the top of backing plate, the gas inlet of reaction tank is arranged on the bottom of side face, and the gas outlet of reaction tank is arranged on the top.

[0004] The above-mentioned equipment, by denitration spraying device, increases the time of flue gas staying in the reaction tank during use, cooperates with the atomized state of reaction liquid sprayed by atomizing nozzle on multiple spray pipes, thereby improving the spraying effect.

[0005] The above-mentioned content in actual use process, flue gas residence time is short, and cannot be absorbed and removed by desulfurization filling plate to sulfur material in flue gas, cannot be fully adsorbed and purified to other harmful substances in flue gas, can cause flue gas emission pollution, affect environmental safety, therefore, it is necessary to put forward a kind of boiler with denitration spraying device.

[0006] It should be noted that the above content belongs to the technical cognition of the inventor and does not necessarily constitute prior art. UTILITY MODEL CONTENT

[0007] In view of the deficiencies of the prior art, the utility model provides a kind of boiler with denitration spraying device, solves the problems existing today.

[0008] To achieve the above object, the utility model provides the following technical scheme: A boiler is with denitration spray device, including spray tank, the inside symmetry of spray tank is provided with the slot, the inside symmetry of each slot is connected with desulfurization filling plate, the inside of spray tank is provided with installation cavity, the inside of installation cavity is installed with square breathable installation frame, the inside of square breathable installation frame is provided with absorption ball, the outside of each desulfurization filling plate is fixedly connected with pull -plate, and each pull -plate is located the outside of spray tank.

[0009] As a preferred technical scheme of the utility model, the outside of each pull -plate is fixedly connected with inclined surface plug rod, the inside symmetry of spray tank is provided with installation groove that cooperates with inclined surface plug rod uses, the inside symmetry of spray tank is provided with movable slot, the inside of each movable slot is slidably connected with limit stop, the outside of each limit stop is fixedly connected with inclined surface clamping block, and the inclined surface of each inclined surface clamping block is located the inside of corresponding installation groove, the inside of each inclined surface plug rod is provided with clamping groove that cooperates with inclined surface clamping block uses.

[0010] As a preferred technical scheme of the utility model, the outside of each limit stop is fixedly connected with spring between the inner wall of corresponding movable slot, the side of each limit stop away from inclined surface clamping block is fixedly connected with pull -rod, and the other end of each pull -rod is penetrated through spray tank and is fixedly connected with pull -ring.

[0011] As a preferred technical scheme of the utility model, the inner wall of spray tank is fixedly connected with guide support strip, and two desulfurization filling plates and a square breathable installation frame are located on corresponding guide support strip and slide, and the outside of spray tank is hingedly connected with sealing door that cooperates with installation cavity.

[0012] As a preferred technical scheme of the utility model, the outside of spray tank is provided with mounting seat, the top of mounting seat is installed with water pump, the output end of water pump is installed with main pipeline, the outside symmetry of main pipeline is connected with branch pipeline, the other end of each branch pipeline is extended to the inside of spray tank and is fixedly connected with spray frame, the bottom of each spray frame is installed with multiple atomizing nozzles at equal intervals, the input end of water pump is fixedly connected with water suction pipe, and the other end of water suction pipe is located in the inside of spray tank.

[0013] As a preferred technical scheme of the utility model, the outside of spray tank is installed with air inlet, the top of spray tank is installed with flue gas pipe, and the outside of square breathable installation frame is installed with handle.

[0014] As a preferred technical scheme of the utility model, the liquid inlet pipe is externally installed on the spray tank, a liquid inlet valve is arranged on the outside of the liquid inlet pipe, a liquid outlet pipe is externally installed on the spray tank, a liquid outlet valve is arranged on the outside of the liquid outlet pipe, and the liquid outlet pipe is located below the liquid inlet pipe.

[0015] Compared with the prior art, the utility model provides a kind of boiler with denitration spray device, with following beneficial effects:

[0016] I, the desulfurization filling plate of the kind of boiler with denitration spray device, by setting pull plate, inclined surface plug rod, inclined surface block, spring, slot and square air permeable mounting frame, pull plate drives inclined surface plug rod and inserts into corresponding installation slot, and inclined surface plug rod extrudes inclined surface block, so that it is retracted and drives limit plate to extrude spring, and inclined surface block is influenced by the reaction force of spring, and it is reset and clamped into the inside of slot, to complete the installation of two desulfurization filling plates;Again, absorption ball is placed into the inside of square air permeable mounting frame, square air permeable mounting frame is pushed into the inside of installation cavity along guide support strip, and inclined surface block is separated from the inside of slot by pull ring, and desulfurization filling plate can be taken out and replaced;Sealing door is opened, square air permeable mounting frame is extracted by handle, and absorption ball in it can be replaced, with high dismounting efficiency and convenient to use;

[0017] II, the desulfurization filling plate of the kind of boiler with denitration spray device, by setting water pump, atomizing nozzle, desulfurization filling plate and absorption ball, reaction liquid in spray tank is extracted by water pump and water suction pipe, and is guided to spray frame by main pipe and branch pipe, and finally is sprayed from multiple atomizing nozzles, reaction liquid is sprayed to corresponding desulfurization filling plate by atomizing nozzle, so that sulfide in flue gas is fully absorbed by desulfurization filling plate, and is neutralized by reaction liquid, while, reaction liquid is flowed back to the bottom of spray tank, to realize reaction liquid recycling, improve energy utilization rate and reduce energy consumption;Flue gas passes through square air permeable mounting frame and absorption ball in it, and multiple through holes in absorption ball can reduce the speed of flue gas diffusion and absorb other harmful substances in flue gas. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is overall structure schematic view of the utility model;

[0019] Figure 2 It is installation structure schematic view of the desulfurization filling plate of the utility model;

[0020] Figure 3 It is internal structure schematic view of the movable tank of the utility model;

[0021] Figure 4 It is internal structure schematic view of the spray tank of the utility model.

[0022] In the diagram: 1. Spray tank; 2. Slot; 3. Desulfurization filling plate; 4. Installation cavity; 5. Square ventilated installation frame; 6. Absorbing ball; 7. Pull plate; 8. Angled insert rod; 9. Installation groove; 10. Movable groove; 11. Limiting plate; 12. Angled locking block; 13. Locking groove; 14. Spring; 15. Pull rod; 16. Pull ring; 17. Guide support strip; 18. Sealing door; 19. Mounting seat; 20. Water pump; 21. Main pipeline; 22. Branch pipeline; 23. Spray frame; 24. Atomizing nozzle; 25. Water suction pipe; 26. Air inlet; 27. Liquid inlet pipe; 28. Liquid inlet valve; 29. ​​Liquid drain pipe; 30. Liquid drain valve; 31. Smoke exhaust pipe. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] 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.

[0025] Example 1

[0026] like Figures 1-4 As shown, this utility model provides a technical solution: a denitrification spray device for boilers, including a spray tank 1, with slots 2 symmetrically opened inside the spray tank 1, and a desulfurization filling plate 3 slidably connected inside each slot 2. An installation cavity 4 is opened inside the spray tank 1, and a square ventilated installation frame 5 is installed inside the installation cavity 4. An absorption ball 6 is arranged inside the square ventilated installation frame 5. A pull plate 7 is fixedly connected to the outside of each desulfurization filling plate 3, and each pull plate 7 is located outside the spray tank 1.

[0027] The outer part of each pull plate 7 is fixedly connected with an inclined plug rod 8, the inner part of the spray tank 1 is symmetrically provided with an installation groove 9 matched with the inclined plug rod 8, the inner part of the spray tank 1 is symmetrically provided with a movable groove 10, the inner part of each movable groove 10 is slidably connected with a limiting plate 11, the outer part of each limiting plate 11 is fixedly connected with an inclined clamping block 12, and the inclined surface of each inclined clamping block 12 is located in the corresponding installation groove 9, the inner part of each inclined plug rod 8 is provided with a clamping groove 13 matched with the inclined clamping block 12, the spring 14 is fixedly connected between each limiting plate 11 and the inner wall of the corresponding movable groove 10, the pull rod 15 is fixedly connected to the side of each limiting plate 11 away from the inclined clamping block 12, and the other end of each pull rod 15 penetrates through the spray tank 1 and is fixedly connected with a pull ring 16.

[0028] The inner wall of the spray tank 1 is fixedly connected with a guide support strip 17, and the two desulfurization filling plates 3 and the square air permeable mounting frame 5 are located on the corresponding guide support strips 17 and slide thereon. The outer part of the spray tank 1 is hingedly connected with a sealing door 18 matched with the installation cavity 4.

[0029] In the embodiment, the desulfurization filling plate 3 is inserted into the inner part of the insertion slot 2 by the pull plate 7, and the desulfurization filling plate 3 slides above the guide support strip 17 after entering the insertion slot 2. The guide support strip 17 can provide a guiding effect and a supporting force. Meanwhile, the inclined plug rod 8 is inserted into the corresponding installation groove 9 by the pull plate 7, the inclined surface of the inclined clamping block 12 is extruded by the inclined plug rod 8 in the inner part of the installation groove 9, the inclined clamping block 12 is retracted and drives the limiting plate 11 to extrude the spring 14, the pull rod 15 and the pull ring 16 slide when the limiting plate 11 moves, the inclined clamping block 12 is affected by the reaction force of the spring 14 after the inclined plug rod 8 completely enters the inner part of the installation groove 9, and the inclined clamping block 12 is reset and clamped into the inner part of the clamping groove 13, so that the installation of the two desulfurization filling plates 3 is completed. The absorption ball 6 is placed in the inner part of the square air permeable mounting frame 5, the square air permeable mounting frame 5 is pushed into the inner part of the installation cavity 4 along the guide support strip 17, and the sealing door 18 is closed.

[0030] The desulfurization filling plate 3 can be taken out and replaced by driving the inclined clamping block 12 out of the inner part of the clamping groove 13 through the pull ring 16. The square air permeable mounting frame 5 can be taken out by opening the sealing door 18 and pulling the handle, and the absorption ball 6 in the square air permeable mounting frame 5 can be replaced, so that the disassembly and assembly efficiency is high and the use is convenient.

[0031] Embodiment two

[0032] As Figures 1-4As shown, the outside of the spray tank 1 is provided with a mounting seat 19, the top of the mounting seat 19 is provided with a water pump 20, the output end of the water pump 20 is provided with a main pipe 21, the outside of the main pipe 21 is symmetrically communicated with branch pipes 22, the other end of each branch pipe 22 extends to the inside of the spray tank 1 and is fixedly connected with a spray frame 23, the bottom of each spray frame 23 is provided with a plurality of atomizing nozzles 24 at equal intervals, the input end of the water pump 20 is fixedly connected with a water suction pipe 25, and the other end of the water suction pipe 25 is located in the inside of the spray tank 1, the outside of the spray tank 1 is provided with an air inlet 26, the top of the spray tank 1 is provided with a smoke exhaust pipe 31, the outside of the square air-permeable mounting frame 5 is provided with a handle, the outside of the spray tank 1 is provided with a liquid inlet pipe 27, the outside of the liquid inlet pipe 27 is provided with a liquid inlet valve 28, the outside of the spray tank 1 is provided with a liquid outlet pipe 29, the outside of the liquid outlet pipe 29 is provided with a liquid outlet valve 30, and the liquid outlet pipe 29 is located below the liquid inlet pipe 27.

[0033] In this embodiment, the liquid outlet valve 30 is closed, the reaction liquid is injected into the inside of the spray tank 1 from the liquid inlet pipe 27, after the injection is completed, the liquid inlet valve 28 is closed, the boiler flue gas pipe is connected with the air inlet 26, the flue gas enters the inside of the spray tank 1 from the air inlet 26, floats upward and passes through the two desulfurization filling plates 3, at this time, the reaction liquid in the inside of the spray tank 1 is extracted through the water pump 20 and the water suction pipe 25, and is guided into the spray frame 23 through the main pipe 21 and the branch pipe 22, and finally is sprayed from the plurality of atomizing nozzles 24, the atomizing nozzles 24 spray the reaction liquid to the corresponding desulfurization filling plate 3, so that the sulfide in the flue gas is fully absorbed by the desulfurization filling plate 3 and is neutralized by the reaction liquid, at the same time, the sprayed reaction liquid flows back to the bottom of the spray tank 1, so as to realize the recycling of the reaction liquid, improve the energy utilization rate and reduce the energy consumption; the flue gas passes through the square air-permeable mounting frame 5 and the absorption balls 6 in the inside thereof, the plurality of through holes in the inside of the absorption balls 6 can reduce the floating speed of the flue gas and absorb other harmful substances in the flue gas; the purified flue gas is discharged from the smoke exhaust pipe 31; the liquid outlet valve 30 is opened, the reaction liquid is discharged from the liquid outlet pipe 29, and the replacement of the reaction liquid can be completed by re-injection.

[0034] The working principle of the embodiment is as follows: in use, first, the desulfurization filling plate 3 is inserted into the inside of the insertion slot 2 by the pull plate 7, and the desulfurization filling plate 3 slides above the guide support strip 17 after entering the insertion slot 2, the guide support strip 17 can provide a guiding effect and a supporting force, at the same time, the inclined insertion rod 8 is inserted into the corresponding installation slot 9 by the pull plate 7, the inclined insertion rod 8 extrudes the inclined surface of the inclined clamping block 12 in the inside of the installation slot 9, so that the inclined clamping block 12 is retracted and drives the limiting plate 11 to extrude the spring 14, the limiting plate 11 drives the pull rod 15 and the pull ring 16 to slide when moving, after the inclined insertion rod 8 completely enters the inside of the installation slot 9, the inclined clamping block 12 is affected by the reaction force of the spring 14, and is bounced back to reset and clamped into the inside of the clamping slot 13, so that the installation of the two desulfurization filling plates 3 is completed; then the absorption ball 6 is placed into the inside of the square air permeable installation frame 5, the square air permeable installation frame 5 is pushed into the inside of the installation cavity 4 along the guide support strip 17, and the sealing door 18 is closed;

[0035] The liquid outlet valve 30 is closed, the reaction liquid is injected into the inside of the spray tank 1 from the liquid inlet pipe 27, the liquid inlet valve 28 is closed after the injection is completed, and the boiler flue gas pipeline is connected with the air inlet 26, at this time, the flue gas enters the inside of the spray tank 1 from the air inlet 26, floats upwards, and passes through the two desulfurization filling plates 3, at this time, the reaction liquid in the inside of the spray tank 1 is extracted by the water pump 20 and the water suction pipe 25, and is guided to the spray frame 23 by the main pipeline 21 and the branch pipeline 22, and finally is sprayed from the plurality of atomizing nozzles 24, the atomizing nozzles 24 spray the reaction liquid to the corresponding desulfurization filling plate 3, so that the sulfide in the flue gas is fully absorbed by the desulfurization filling plate 3 and is neutralized by the reaction liquid, at the same time, the sprayed reaction liquid flows back to the bottom of the spray tank 1, so that the reaction liquid is recycled, the energy utilization rate is improved, and the energy consumption is reduced; the flue gas passes through the square air permeable installation frame 5 and the absorption ball 6 in the inside thereof, the plurality of through holes in the inside of the absorption ball 6 can reduce the floating speed of the flue gas and absorb other harmful substances in the flue gas; the purified flue gas is discharged from the smoke exhaust pipe 31;

[0036] According to the use condition, the liquid outlet valve 30 is opened, the reaction liquid is discharged from the liquid outlet pipe 29, and the reaction liquid is injected again, so that the replacement of the reaction liquid is completed;

[0037] When the desulfurization filling plate 3 and the absorption ball 6 need to be replaced after long-time use, the inclined clamping block 12 is driven by the pull ring 16 to be separated from the inside of the clamping slot 13, so that the desulfurization filling plate 3 can be taken out and replaced; the sealing door 18 is opened, the square air permeable installation frame 5 is pulled out by the handle, and the absorption ball 6 in the inside thereof is replaced, so that the disassembly and assembly efficiency is high and the use is convenient.

[0038] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A denitration spraying device for a boiler, characterized by: The utility model provides a desulfurization device, including the spray tank (1), the inside symmetry of spray tank (1) is opened with the slot (2), the inside symmetry of each slot (2) is connected with the desulfurization filling board (3) slidingly, the inside of spray tank (1) is opened with the installation cavity (4), the inside of installation cavity (4) is installed with square breathable installation frame (5), the inside of square breathable installation frame (5) is provided with the absorption ball (6), the outside of each desulfurization filling board (3) is fixedly connected with the pull plate (7), and each pull plate (7) is located the outside of spray tank (1).

2. The denitration spraying device for a boiler according to claim 1, characterized in that: The outside of each pull plate (7) is fixedly connected with the inclined surface plug rod (8) symmetry, the inside of spray tank (1) is opened with the installation groove (9) of cooperation inclined surface plug rod (8) is used, the inside of spray tank (1) is opened with the movable slot (10) symmetry, the inside of each movable slot (10) is connected with the limit board (11) slidingly, the outside of each limit board (11) is fixedly connected with the inclined surface clamping block (12), and the inclined surface of each inclined surface clamping block (12) is located the inside of corresponding installation groove (9), the inside of each inclined surface plug rod (8) is opened with the clamping groove (13) of cooperation inclined surface clamping block (12) is used.

3. The denitration spraying device for a boiler according to claim 2, characterized in that: The spring (14) is fixedly connected between each limit board (11) and the inner wall of corresponding movable slot (10), the pull rod (15) is fixedly connected to the side, away from the inclined surface clamping block (12) of each limit board (11), and the pull ring (16) is fixedly connected to the other end of each pull rod (15) and penetrates the spray tank (1).

4. The denitration spraying device for a boiler according to claim 1, characterized in that: The inner wall of the spray tank (1) is fixedly connected with the guide support strip (17), and the two desulfurization filling boards (3) and the square breathable installation frame (5) are located on the corresponding guide support strip (17) and slide.

5. The denitration spraying device for a boiler according to claim 1, characterized in that: The outer part of the spray tank (1) is provided with a mounting seat (19), the top of the mounting seat (19) is provided with a water pump (20), the output end of the water pump (20) is provided with a main pipeline (21), the outer part of the main pipeline (21) is symmetrically communicated with a branch pipeline (22), the other end of each branch pipeline (22) extends into the inside of the spray tank (1) and is fixedly connected with a spray frame (23), a plurality of atomizing nozzles (24) are equidistantly installed at the bottom of each spray frame (23), the input end of the water pump (20) is fixedly connected with a water suction pipe (25), and the other end of the water suction pipe (25) is located in the inside of the spray tank (1).

6. The denitration spraying device for a boiler according to claim 1, characterized in that: The outer part of the spray tank (1) is provided with an air inlet (26), the top of the spray tank (1) is provided with a smoke exhaust pipe (31), and the outer part of the square breathable installation frame (5) is provided with a handle.

7. The denitration spraying device for a boiler according to claim 1, characterized in that: The liquid inlet pipe (27) is externally installed on the spray tank (1), the liquid inlet valve (28) is arranged on the outside of the liquid inlet pipe (27), the liquid outlet pipe (29) is externally installed on the spray tank (1), the liquid outlet valve (30) is arranged on the outside of the liquid outlet pipe (29), and the liquid outlet pipe (29) is located below the liquid inlet pipe (27).

Images