Desulfurization and denitrification integrated purification device for waste gas

Abstract

The utility model discloses a waste gas desulfurization and denitrification integrated purification device which comprises a rack, a desulfurization device and a denitrification device are arranged in the rack, and the desulfurization device and the denitrification device are distributed up and down. A connecting pipe is arranged between the desulfurization device and the denitration device, and the desulfurization device and the denitration device are communicated through the connecting pipe. Waste gas enters the denitration device through the gas inlet pipe, is filtered by the first filter screen, then is subjected to denitration reaction with the reaction filter element and then is filtered by the second filter screen, and the filtered waste gas is conveyed into the desulfurization device through the connecting pipe, is subjected to desulfurization reaction repeatedly and then enters the purification tank through the conveying pipe. The waste gas after denitration and desulfurization is purified through the cooperation of the rotational flow plate, the spraying device and the demister in the purification tank and is exhausted through the exhaust pipe, the desulfurization device and the denitration device are integrated, the occupied area is reduced, meanwhile, integrated treatment is carried out, and the treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of purification devices, and more specifically to an integrated purification device for waste gas desulfurization and denitration. Background Art

[0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology used in the chemical industry that produces a lot of nitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are one of the main sources of air pollution. Flue gas desulfurization and denitrification technologies are mostly in the research and industrial demonstration stage, but because it can achieve desulfurization and denitrification in one system at the same time, especially with the continuous tightening of nitrogen oxide control standards, desulfurization and denitrification technologies are receiving increasing attention from various countries.

[0003] Most of the existing desulfurization devices and denitration devices are split structures, each of which takes up a large space for installation and has a low purification efficiency. Therefore, a new technical solution is needed to solve the problem. Utility Model Content

[0004] The utility model aims to provide an integrated exhaust gas desulfurization and denitration purification device, which solves the problem that the existing desulfurization devices and denitration devices are mostly split structures, occupy a large space for installation, and have low purification efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated purification device for waste gas desulfurization and denitration, comprising: a frame, a desulfurization device and a denitration device are arranged inside the frame, the desulfurization device and the denitration device are distributed up and down, a connecting pipe is arranged between the desulfurization device and the denitration device, and the desulfurization device and the denitration device are connected through the connecting pipe, an air inlet pipe is arranged at the other end of the denitration device, and the air inlet pipe is connected to the exhaust gas source, a delivery pipe is arranged at the other end of the desulfurization device, and a purification tank is arranged on the side of the delivery pipe, a swirl plate, a spray device and a demister are arranged in sequence inside the purification tank from bottom to top, a liquid hopper is arranged at the bottom of the purification tank, a drain pipe is arranged on the side of the liquid hopper, and the drain pipe extends to the outside of the purification tank, a mounting frame is arranged inside the desulfurization device and the denitration device, and a first filter screen and a second filter screen are arranged on the inner side of the mounting frame, a reaction filter element is arranged between the first filter screen and the second filter screen, and the reaction filter element is a reactant of desulfurization and denitration, and an exhaust port is arranged on the top of the purification tank.

[0006] As a preferred embodiment of the utility model, a fixing card is fixedly installed on the surface of the frame, and the fixing card is fixedly connected to the denitration device and the desulfurization device.

[0007] As a preferred embodiment of the utility model, a control box is arranged inside the frame and the control box is electrically connected to the control circuit through a wire.

[0008] As a preferred embodiment of the utility model, a control valve is provided between the desulfurization device and the denitration device, and the control valve is connected to a connecting pipe.

[0009] As a preferred embodiment of the present utility model, the spray device is arranged in an annular structure.

[0010] As a preferred embodiment of the present utility model, the interior of the demister is arranged in a wave-shaped structure.

[0011] As a preferred embodiment of the utility model, a sealing ring is provided inside the desulfurization device and the denitration device, and the sealing ring is located on the side of the mounting frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model is provided with a desulfurization device and a denitration device inside the frame. The desulfurization device and the denitration device are distributed up and down, a connecting pipe is provided between the desulfurization device and the denitration device, and the desulfurization device and the denitration device are connected through the connecting pipe, an air intake pipe is provided at the other end of the denitration device, and the air intake pipe is connected to the exhaust gas source, a delivery pipe is provided at the other end of the desulfurization device, and a purification tank is provided on the side of the delivery pipe, a swirl plate, a spray device and a demister are provided in sequence from bottom to top inside the purification tank, and a liquid hopper is provided at the bottom, a drain pipe is provided on the side of the liquid hopper, and the drain pipe extends to the outside of the purification tank, and a mounting frame is provided inside the desulfurization device and the denitration device, and a first filter screen and a second filter screen are provided on the inner side of the mounting frame. A reaction filter element is arranged between the first filter and the second filter, and the reaction filter element is a reactant for desulfurization and denitrification. The exhaust gas enters the denitrification device through the air inlet pipe, is filtered by the first filter, undergoes a denitrification reaction with the reaction filter element and is filtered again by the second filter. The filtered exhaust gas is transported to the desulfurization device through a connecting pipe, and enters the purification tank through a transport pipe after repeating the desulfurization reaction. The exhaust gas after denitrification and desulfurization is purified by the cooperation of the swirl plate, the spray device and the demister in the purification tank, and is discharged through the exhaust pipe. This arrangement integrates the desulfurization and denitrification devices, reduces the occupied area, and performs integrated treatment at the same time, thereby improving the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 3 This is a side view of the structure of the utility model;

[0017] Figure 4This is a schematic diagram of the internal structure of the purification tank of the utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the desulfurization and denitrification device of the utility model.

[0019] In the figure: 1. frame; 2. desulfurization device; 3. denitrification device; 4. connecting pipe; 5. control box; 6. air inlet pipe; 7. delivery pipe; 8. purification tank; 9. exhaust port; 10. drain pipe; 11. control valve; 12. fixing card; 13. liquid hopper; 14. swirl plate; 15. spray device; 16. demister; 17. sealing ring; 18. mounting frame; 19. first filter screen; 20. reaction filter element; 21. second filter screen. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5The utility model provides a technical solution: an integrated exhaust gas desulfurization and denitration purification device, comprising: a frame 1, a desulfurization device 2 and a denitration device 3 are arranged inside the frame 1, the desulfurization device 2 and the denitration device 3 are distributed up and down, a connecting pipe 4 is arranged between the desulfurization device 2 and the denitration device 3, and the desulfurization device 2 and the denitration device 3 are connected through the connecting pipe 4, an air intake pipe 6 is arranged at the other end of the denitration device 3, and the air intake pipe 6 is connected to the exhaust gas source, a delivery pipe 7 is arranged at the other end of the desulfurization device 2, and a purification tank 8 is arranged on the side of the delivery pipe 7, and the interior of the purification tank 8 is arranged from bottom to top in sequence There are swirl plates 14, spray devices 15 and demisters 16, a liquid hopper 13 is provided at the bottom of the purification tank 8, a drain pipe 10 is provided on the side of the liquid hopper 13 and the drain pipe 10 extends to the outside of the purification tank 8, the desulfurization device 2 and the denitration device 3 are both provided with mounting frames 18 inside and the inner side of the mounting frame 18 is provided with a first filter screen 19 and a second filter screen 21, a reaction filter element 20 is provided between the first filter screen 19 and the second filter screen 21, and the reaction filter element 20 is a reactant of desulfurization and denitration, an exhaust port 9 is provided on the top of the purification tank 8, and the desulfurization device 2 and the denitration device 3 are provided inside the frame 1. The desulfurization device 2 and the denitration device 3 are arranged in an upper and lower arrangement, a connecting pipe 4 is arranged between the desulfurization device 2 and the denitration device 3, and the desulfurization device 2 and the denitration device 3 are connected through the connecting pipe 4, an air intake pipe 6 is arranged at the other end of the denitration device 3, and the air intake pipe 6 is connected to the exhaust gas source, a delivery pipe 7 is arranged at the other end of the desulfurization device 2, and a purification tank 8 is arranged on the side of the delivery pipe 7, a swirl plate 14, a spray device 15 and a demister 16 are arranged in sequence from bottom to top inside the purification tank 8, and a liquid hopper 13 is arranged at the bottom, a drain pipe 10 is arranged on the side of the liquid hopper 13, and the drain pipe 10 extends to the outside of the purification tank 8, and a mounting frame 18 is arranged inside the desulfurization device 2 and the denitration device 3, and a first filter is arranged on the inner side of the mounting frame 18 19 and the second filter screen 21, a reaction filter element 20 is arranged between the first filter screen 19 and the second filter screen 21, and the reaction filter element 20 is a reactant for desulfurization and denitrification. The exhaust gas enters the denitrification device 3 through the intake pipe 6, is filtered by the first filter screen 19, reacts with the reaction filter element 20 for denitrification, and is filtered again by the second filter screen 21. The filtered exhaust gas is transported to the desulfurization device 2 through the connecting pipe 4, and enters the purification tank 8 through the transport pipe 7 after repeating the desulfurization reaction. The exhaust gas after denitrification and desulfurization is purified by the cooperation of the swirl plate 14, the spray device 15 and the demister 16 in the purification tank 8, and is discharged through the exhaust pipe. This arrangement integrates the desulfurization and denitrification devices 3, reduces the occupied area, and performs integrated treatment at the same time, thereby improving the treatment efficiency.

[0022] Further improvements, such as Figure 3As shown: a fixing card 12 is fixedly installed on the surface of the frame 1 and the fixing card 12 is fixedly connected to the denitrification device 3 and the desulfurization device 2. This arrangement ensures the stability of the installation of the desulfurization device 2 and the denitrification device 3 and facilitates disassembly and maintenance.

[0023] Further improvements, such as Figure 1 As shown: a control box 5 is arranged inside the frame 1 and the control box 5 is electrically connected to the control circuit through a wire, and this arrangement facilitates external operation.

[0024] Further improvements, such as Figure 2 As shown: a control valve 11 is arranged between the desulfurization device 2 and the denitration device 3, and the control valve 11 is connected to the connecting pipe 4. This arrangement is convenient for controlling flow and switching.

[0025] Further improvements, such as Figure 4 As shown: the spray device 15 is arranged in an annular structure, and the annular spray structure increases the spray area.

[0026] Further improvements, such as Figure 4 As shown: the interior of the demister 16 is arranged in a wave-shaped structure, and this arrangement enhances the demister effect.

[0027] Further improvements, such as Figure 5 As shown: a sealing ring 17 is arranged inside the desulfurization device 2 and the denitration device 3 and the sealing ring 17 is located on the side of the mounting frame 18. This arrangement ensures the sealing performance of the desulfurization device 2 and the denitration device 3.

[0028] Working principle: a desulfurization device 2 and a denitration device 3 are arranged inside the frame 1. The desulfurization device 2 and the denitration device 3 are distributed up and down, a connecting pipe 4 is arranged between the desulfurization device 2 and the denitration device 3, and the desulfurization device 2 and the denitration device 3 are connected through the connecting pipe 4, an air intake pipe 6 is arranged at the other end of the denitration device 3, and the air intake pipe 6 is connected to the exhaust gas source, a delivery pipe 7 is arranged at the other end of the desulfurization device 2, and a purification tank 8 is arranged on the side of the delivery pipe 7, a swirl plate 14, a spray device 15 and a demister 16 are arranged in sequence from bottom to top inside the purification tank 8, and a liquid hopper 13 is arranged at the bottom, a drain pipe 10 is arranged on the side of the liquid hopper 13, and the drain pipe 10 extends to the outside of the purification tank 8, and a mounting frame 18 is arranged inside the desulfurization device 2 and the denitration device 3, and a first filter is arranged on the inner side of the mounting frame 18 19 and the second filter screen 21, a reaction filter element 20 is arranged between the first filter screen 19 and the second filter screen 21, and the reaction filter element 20 is a reactant for desulfurization and denitrification. The exhaust gas enters the denitrification device 3 through the intake pipe 6, is filtered by the first filter screen 19, reacts with the reaction filter element 20 for denitrification, and is filtered again by the second filter screen 21. The filtered exhaust gas is transported to the desulfurization device 2 through the connecting pipe 4, and enters the purification tank 8 through the transport pipe 7 after repeating the desulfurization reaction. The exhaust gas after denitrification and desulfurization is purified by the cooperation of the swirl plate 14, the spray device 15 and the demister 16 in the purification tank 8, and is discharged through the exhaust pipe. This arrangement integrates the desulfurization and denitrification devices 3, reduces the occupied area, and performs integrated treatment at the same time, thereby improving the treatment efficiency.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated exhaust gas desulfurization and denitrification purification device, characterized in that: include: A frame (1), wherein a desulfurization device (2) and a denitration device (3) are arranged inside the frame (1), wherein the desulfurization device (2) and the denitration device (3) are arranged in an upper and lower arrangement, wherein a connecting pipe (4) is arranged between the desulfurization device (2) and the denitration device (3), and the desulfurization device (2) and the denitration device (3) are connected via the connecting pipe (4), wherein an air intake pipe (6) is arranged at the other end of the denitration device (3), and the air intake pipe (6) is connected to a waste gas source, wherein a delivery pipe (7) is arranged at the other end of the desulfurization device (2), and a purification tank (8) is arranged on the side of the delivery pipe (7), and wherein swirl plates (14) are arranged in sequence from bottom to top inside the purification tank (8). ), a spray device (15) and a demister (16); a liquid storage bucket (13) is arranged at the bottom of the purification tank (8); a drain pipe (10) is arranged on the side of the liquid storage bucket (13) and the drain pipe (10) extends to the outside of the purification tank (8); a mounting frame (18) is arranged inside the desulfurization device (2) and the denitration device (3); a first filter screen (19) and a second filter screen (21) are arranged on the inner side of the mounting frame (18); a reaction filter element (20) is arranged between the first filter screen (19) and the second filter screen (21); the reaction filter element (20) is a reactant of desulfurization and denitration; and an exhaust port (9) is arranged at the top of the purification tank (8).

2. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: A fixing card (12) is fixedly mounted on the surface of the frame (1), and the fixing card (12) is fixedly connected to the denitration device (3) and the desulfurization device (2).

3. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: A control box (5) is arranged inside the frame (1), and the control box (5) is electrically connected to the control circuit via a wire.

4. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: A control valve (11) is provided between the desulfurization device (2) and the denitration device (3), and the control valve (11) is connected to the connecting pipe (4).

5. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: The spray device (15) is arranged in an annular structure.

6. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: The interior of the demister (16) is arranged in a wave-shaped structure.

7. The integrated exhaust gas desulfurization and denitrification purification device according to claim 1, characterized in that: A sealing ring (17) is provided inside the desulfurization device (2) and the denitration device (3), and the sealing ring (17) is located on the side of the mounting frame (18).

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