Efficient recovery coke oven for desulfurization, denitrification and dust removal

Abstract

The utility model relates to the technical field of coke oven flue gas, in particular to an efficient recovery coke oven for desulfurization, denitrification and dust removal, which comprises a coke oven, a fixedly connected exhaust pipe is arranged above the coke oven, a desulfurization, denitrification and dust removal mechanism is arranged on one side of the exhaust pipe, the desulfurization, denitrification and dust removal mechanism comprises a shell, and a fixedly connected inclined plate I is arranged in the shell; a fixedly-connected protective shell is arranged in the position, above the first inclined plate, of the shell. A fixedly-connected first electric spraying machine is installed in the protective shell. An activated carbon box in sliding connection is further arranged above one side of the shell; through linkage of the lead screw motor and the brush, automatic cleaning of blockage of the coarse filter screen is achieved, and the filtering efficiency is guaranteed; multi-stage filtration is combined with water circulation and chemical treatment, so that smoke dust and harmful substances are efficiently removed; the electric spraying machine is used for cooling and purifying, and the activated carbon box is used for strengthening the tail end purifying effect, so that resource recovery and environment-friendly emission are both considered, and the treatment efficiency and sustainability of the coke oven flue gas are improved.

Description

Technical Field

[0001] This utility model relates to the field of coke oven flue gas technology, and in particular to a high-efficiency coke oven for desulfurization, denitrification and dust removal. Background Technology

[0002] A coking oven is a furnace used to refine coke. A modern coking oven consists of a carbonization chamber, a combustion chamber, a regenerator, an inclined zone, a furnace roof, a foundation, and a flue. In the carbonization chamber, coal is heated and turned into coke under air-isolated conditions. When a coking oven is in use, it will produce a certain amount of smoke. This smoke carries a certain amount of solid particulate matter, and direct discharge into the environment can easily cause environmental pollution. It needs to be treated before it can be discharged.

[0003] Chinese utility model patent discloses a coking oven with smoke and dust removal function (application number: 2023235415692). This application sets up a mesh plate, a water pump, a drain pipe and a hollow ring. During use, the mesh plate can filter larger particles in the flue gas, and the atomizing nozzle can spray the flue gas, so that the fine particles in the flue gas are adsorbed by the water and pass through the mesh plate into the bottom of the shell, thereby reducing the content of particulate matter in the flue gas, thereby reducing the concentration of flue gas and reducing dust in the flue gas, achieving the purpose of smoke and dust removal.

[0004] However, the above application can only remove particulate matter from flue gas. In actual operation, the flue gas discharged from the coke oven contains not only conventional dust, but also substances such as sulfides and nitrogen oxides, which still need to be removed during emission, making the device not very practical in actual use.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a high-efficiency coke oven for desulfurization, denitrification and dust removal, so as to solve the above-mentioned technical defects.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A high-efficiency recycling coke oven for desulfurization, denitrification and dust removal includes a coke oven, an exhaust pipe fixedly connected above the coke oven, a desulfurization, denitrification and dust removal mechanism on one side of the exhaust pipe, the desulfurization, denitrification and dust removal mechanism includes a shell, an inclined plate fixedly connected inside the shell, a protective shell fixedly connected inside the shell above the inclined plate, and an electric sprayer fixedly connected inside the protective shell.

[0009] An activated carbon box is also provided on one side of the housing. A lead screw motor is also fixed to one side of the housing by bolts. The drive shaft of the lead screw motor extends into the housing and is fixedly connected to a lead screw. A wastewater filter box is fixedly installed on the bottom of one side of the housing by bolts.

[0010] Preferably, a coarse filter screen is fixedly connected between the upper end of the inclined plate and the inner wall of the shell, the other end of the exhaust pipe is fixedly connected to the shell and communicates internally, the connection between the exhaust pipe and the shell is located below the inclined plate, and a water outlet groove is provided at the lower end of the shell of the inclined plate.

[0011] Preferably, a drain pipe is fixedly provided on one side of the protective shell, the drain pipe is connected to the inside of the shell, a fine filter screen is fixedly connected between the protective shell and the inner wall of the shell, an inclined plate II is fixedly connected inside the shell above the fine filter screen, an electric sprayer II is fixedly connected above the inclined plate II, and an air outlet is provided between the inclined plate II and the shell.

[0012] Preferably, a slidably connected dust collection drawer is placed on one side of the bottom of the housing, the activated carbon box is located inside the air outlet, a medicine box is placed on top of the housing, a fixedly connected connecting pipe is installed at the bottom of the medicine box, and the other end of the connecting pipe passes through the housing and is fixedly connected to the water inlet of the electric sprayer.

[0013] Preferably, the lead screw is provided with a threaded lead screw slider on the outside, and a fixedly connected brush is provided on one side of the lead screw slider. The brush is located at the bottom of the coarse filter screen and slides in cooperation with the coarse filter screen.

[0014] Preferably, the wastewater filter box is internally connected to the effluent tank, the wastewater filter box is provided with a slidingly connected mounting frame, the bottom of the mounting frame is provided with a fixedly connected bottom filter plate, a water pump is placed at one end of the wastewater filter box, and the water pump inlet pipe extends into the wastewater filter box below the bottom filter plate.

[0015] The water pump has a fixedly connected water pipe at its outlet end, and the other end of the water pipe extends into the housing and is fixedly connected to the water inlet end of the electric sprayer.

[0016] The beneficial effects of this utility model are as follows:

[0017] In use, the flue gas discharged from the coke oven flows through the exhaust pipe into the shell at the bottom of the inclined plate, where it is initially filtered by a coarse filter to remove large particles. When the bottom of the coarse filter becomes clogged, the screw motor is activated to drive the screw slider to move the brush horizontally, sweeping the intercepted particles into the ash collection drawer. Subsequently, the water pump draws the filtered water from the wastewater filter box to the electric sprayer for spraying, achieving flue gas cooling, dust removal, and material adsorption. The dust-laden wastewater flows back to the wastewater filter box through the outlet tank, is filtered by the bottom filter plate, and is recycled. The remaining dust is filtered by a fine filter and enters the area below the electric sprayer, where the treatment liquid in the agent tank is sprayed by the electric sprayer for deep purification. Finally, the flue gas is filtered by the activated carbon box and discharged from the outlet.

[0018] This invention achieves automatic cleaning of the coarse filter screen by linking a lead screw motor with a brush, ensuring filtration efficiency; multi-stage filtration combined with water circulation and chemical treatment efficiently removes smoke and harmful substances; an electric sprayer cools and purifies the air, and an activated carbon box enhances the end-of-pipe purification effect, thus taking into account both resource recovery and environmentally friendly emissions, thereby improving the treatment efficiency and sustainability of coke oven flue gas. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings;

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the shell in this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the connection structure between the shell, the dust collection drawer and the activated carbon box in this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the lead screw motor and the brush in this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the wastewater filter box and the water pump in this utility model.

[0025] Legend: 1. Coke oven; 11. Exhaust pipe; 12. Shell; 13. Inclined plate one; 14. Coarse filter screen; 15. Water outlet trough; 16. Protective shell; 17. Electric sprayer one; 18. Fine filter screen; 19. Inclined plate two; 20. Electric sprayer two; 21. Air outlet; 22. Drain pipe; 23. Ash collection drawer; 24. Screw motor; 25. Screw; 26. Screw slider; 27. Brush; 28. Chemical tank; 29. ​​Activated carbon box; 30. Wastewater filter box; 31. Mounting frame; 32. Bottom filter plate; 33. Water pump; 34. Water pipe. Detailed Implementation

[0026] 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.

[0027] Example 1:

[0028] Please see Figure 1 - Figure 5 As shown, this utility model is a high-efficiency coke oven for desulfurization, denitrification and dust removal, including a coke oven 1. An exhaust pipe 11 is fixedly connected above the coke oven 1. A desulfurization, denitrification and dust removal mechanism is provided on one side of the exhaust pipe 11. The desulfurization, denitrification and dust removal mechanism includes a shell 12. An inclined plate 13 is fixedly connected inside the shell 12. A coarse filter screen 14 is fixedly connected between the upper end of the inclined plate 13 and the inner wall of the shell 12. The other end of the exhaust pipe 11 is fixedly connected to the shell 12 and communicates internally. The connection between the exhaust pipe 11 and the shell 12 is located below the inclined plate 13. A water outlet trough 15 is opened at the lower end of the shell 12 of the inclined plate 13.

[0029] A protective shell 16 is fixedly connected inside the shell 12 above the inclined plate 13. An electric sprayer 17 is fixedly connected inside the protective shell 16. A drain pipe 22 is fixedly connected to the shell 12 on one side of the protective shell 16. The drain pipe 22 communicates with the inside of the shell 12. A fine filter screen 18 is fixedly connected between the protective shell 16 and the inner wall of the shell 12. The sieve holes of the fine filter screen 18 are smaller than the sieve holes of the coarse filter screen 14. An inclined plate 29 is fixedly connected inside the shell 12 above the fine filter screen 18. An electric sprayer 20 is fixedly connected above the inclined plate 219. An air outlet 21 is opened between the inclined plate 219 and the shell 12.

[0030] A slidably connected dust collection drawer 23 is placed on the bottom side of the housing 12. The dust collection drawer 23 is used to collect particles that do not pass through the coarse filter screen 14. An activated carbon box 29 is also slidably connected on the top side of the housing 12. The activated carbon box 29 contains activated carbon granules and is located inside the air outlet 21. A chemical tank 28 is placed on top of the housing 12. The chemical tank 28 contains desulfurization and denitrification treatment liquid. A fixedly connected connecting pipe is installed at the bottom of the chemical tank 28. The other end of the connecting pipe passes through the housing 12 and is fixedly connected to the water inlet of the electric sprayer 20.

[0031] A lead screw motor 24 is also fixedly mounted on one side of the housing 12 by bolts. The drive shaft of the lead screw motor 24 extends into the housing 12 and is fixedly connected to a lead screw 25. A lead screw slider 26 is threadedly connected to the outside of the lead screw 25. A brush 27 is fixedly connected to one side of the lead screw slider 26. The brush 27 is located at the bottom of the coarse filter screen 14 and slides in cooperation with the coarse filter screen 14. When the lead screw motor 24 is started, it drives the lead screw 25 to rotate. The lead screw 25 drives the lead screw slider 26 to move horizontally. The lead screw slider 26 drives the brush 27 on one side to move horizontally below the coarse filter screen 14, thereby sweeping the particles intercepted below the coarse filter screen 14 into the dust collection drawer 23 for storage.

[0032] A wastewater filter box 30 is fixedly installed on one bottom side of the housing 12 by bolts. The wastewater filter box 30 is connected to the interior of the water outlet tank 15. The interior of the wastewater filter box 30 is provided with a slidingly connected mounting frame 31. The bottom of the mounting frame 31 is provided with a fixedly connected bottom filter plate 32. A water pump 33 is placed at one end of the wastewater filter box 30. The water inlet pipe of the water pump 33 extends into the wastewater filter box 30 below the bottom filter plate 32. The water outlet end of the water pump 33 is provided with a fixedly connected water pipe 34. The other end of the water pipe 34 extends into the housing 12 and is fixedly connected to the water inlet end of the electric sprayer 17.

[0033] The working process and principle of this utility model are as follows:

[0034] In use, the flue gas discharged from the coke oven 1 flows through the exhaust pipe 11 to the shell 12 at the bottom of the inclined plate 13. Then the flue gas is filtered through the coarse filter screen 14 to initially filter out large particles in the flue gas. When the coarse filter screen 14 becomes clogged, the lead screw motor 24 is started. When the lead screw motor 24 starts, it drives the lead screw 25 to rotate. The lead screw 25 drives the lead screw slider 26 to move horizontally. The lead screw slider 26 drives the brush 27 on one side to move horizontally below the coarse filter screen 14, thereby sweeping the particles intercepted below the coarse filter screen 14 into the ash collection drawer 23 for storage. Then the water pump 33 and the electric sprayer 17 are started. The water pump 33 draws out the filtered water from the wastewater filter box 30 and delivers it to the electric sprayer 17. The electric sprayer 17 sprays water to cool and remove dust from the flue gas, while adsorbing a small amount of other substances.

[0035] Subsequently, the water containing soot flows into the wastewater filter box 30 through the outlet 15, and is then filtered through the bottom filter plate 32 for recycling. The soot then passes through the fine filter screen 18 and enters below the electric sprayer 20. At this time, the electric sprayer 20 is started, and it draws out the treatment liquid from the agent tank 28 and sprays it. The sprayed treatment liquid treats the flue gas and is discharged through the drain pipe 22. The treated flue gas is filtered again through the activated carbon box 29 and then discharged through the air outlet 21.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-efficiency recovery coke oven for desulfurization, denitrification and dust removal, comprising a coke oven (1), characterized in that, The coke oven (1) is provided with a fixed exhaust pipe (11) above it. A desulfurization, denitrification and dust removal mechanism is provided on one side of the exhaust pipe (11). The desulfurization, denitrification and dust removal mechanism includes a shell (12). A fixed inclined plate (13) is provided inside the shell (12). A fixed protective shell (16) is provided inside the shell (12) above the inclined plate (13). A fixed electric sprayer (17) is installed inside the protective shell (16). An activated carbon box (29) is slidably connected to one side of the housing (12). A screw motor (24) is fixedly installed on one side of the housing (12) by bolts. The drive shaft of the screw motor (24) extends into the housing (12) and is fixedly connected to a screw (25). A wastewater filter box (30) is fixedly installed on the bottom of one side of the housing (12) by bolts.

2. A high-efficiency recovery coke oven for desulfurization, denitrification and dust removal according to claim 1, characterized in that, A coarse filter screen (14) is fixedly connected between the upper end of the inclined plate (13) and the inner wall of the shell (12). The other end of the exhaust pipe (11) is fixedly connected to the shell (12) and communicates internally. The connection between the exhaust pipe (11) and the shell (12) is located below the inclined plate (13). A water outlet groove (15) is opened at the shell (12) at the lower end of the inclined plate (13).

3. The high-efficiency recovery coke oven for desulfurization, denitrification and dust removal according to claim 1, characterized in that, A drain pipe (22) is fixedly provided on one side of the protective shell (16) at the shell (12). The drain pipe (22) is connected to the inside of the shell (12). A fine filter screen (18) is fixedly connected between the protective shell (16) and the inner wall of the shell (12). An inclined plate (19) is fixedly connected inside the shell (12) above the fine filter screen (18). An electric sprayer (20) is fixedly connected above the inclined plate (19). An air outlet (21) is opened between the inclined plate (19) and the shell (12).

4. The high-efficiency recovery coke oven for desulfurization, denitrification and dust removal according to claim 1, characterized in that, A slidably connected dust collection drawer (23) is placed on one side of the bottom of the housing (12). The activated carbon box (29) is located inside the air outlet (21). A medicine box (28) is placed on top of the housing (12). A fixedly connected connecting pipe is installed at the bottom of the medicine box (28). The other end of the connecting pipe passes through the housing (12) and is fixedly connected to the water inlet of the electric sprayer (20).

5. The high-efficiency recovery coke oven for desulfurization, denitrification and dust removal according to claim 1, characterized in that, The lead screw (25) is provided with a threaded lead screw slider (26) on the outside. A fixed brush (27) is provided on one side of the lead screw slider (26). The brush (27) is located at the bottom of the coarse filter screen (14) and slides in cooperation with the coarse filter screen (14).

6. The high-efficiency recovery coke oven for desulfurization, denitrification and dust removal according to claim 1, characterized in that, The wastewater filter box (30) is internally connected to the outlet tank (15). The wastewater filter box (30) is provided with a slidingly connected mounting frame (31). The bottom of the mounting frame (31) is provided with a fixedly connected bottom filter plate (32). A water pump (33) is placed at one end of the wastewater filter box (30). The inlet pipe of the water pump (33) extends into the wastewater filter box (30) below the bottom filter plate (32). The water outlet end of the water pump (33) is provided with a fixedly connected water pipe (34), the other end of the water pipe (34) extends into the shell (12) and is fixedly connected with the water inlet end of the electric spraying machine (17).

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