A device for desulfurization and denitrification of flue dust

Abstract

The utility model discloses a kind of desulfurization and denitrification integration device for smoke dust, including intake pipe;Wet reaction component, wet reaction component is arranged at one end of intake pipe;Dry absorption component, inside of dry absorption component is fixedly communicated with inside of wet reaction component by connecting pipe;Exhaust pipe, one end of exhaust pipe is fixedly communicated with inside of dry absorption component;Wet reaction component includes washing tank, the top of the inner surface of washing tank is fixedly installed with liquid guide disc, the top of liquid guide disc is fixedly communicated with liquid inlet pipe, the outer surface of liquid inlet pipe is fixedly connected with the top of washing tank, the bottom of liquid guide disc is fixedly installed with several spray heads, the bottom of washing tank is fixedly installed with liquid discharge hopper.In the above scheme, intake pipe, wet reaction component, dry absorption component, exhaust pipe are set, through the above structure, smoke is desulfurized and denitrified using two kinds of ways, improve desulfurization and denitrification efficiency, reach better desulfurization and denitrification effect.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization and denitrification technology, and more specifically, to an integrated desulfurization and denitrification device for flue gas. Background Technology

[0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology applied to the chemical industry that generates nitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are one of the main sources of air pollution, so the application of this technology has many benefits for environmental air purification. When the equipment is used for a long time, the filter screen needs to be replaced, but the filter screen in the existing desulfurization and denitrification device is not convenient to replace quickly.

[0003] Patent document publication number CN210021688U discloses an integrated desulfurization and denitrification device for flue gas, comprising a dust suction head, a dust suction pipe, a dust collection box, a dust discharge port, a baffle, an electron beam radiation lamp, a fan, a control panel, a power plug, and a quick-release filter device. The top of the dust suction head is arc-welded to the right side of the dust suction pipe, and the middle right side of the dust collection box is threadedly connected to the left side of the dust suction pipe by bolts. The top of the dust discharge port is fixed to the bottom of the dust collection box, and the baffle is arc-welded to the right side of the inside of the dust collection box. This device aims to solve the problem of inconvenient filter replacement in existing desulfurization and denitrification devices.

[0004] However, it still has some drawbacks in actual use. For example, the above-mentioned device uses a filter screen for desulfurization and denitrification, which is a single method. Moreover, this method has a low efficiency in desulfurization and denitrification of flue gas and requires frequent replacement of the filter screen, which is inconvenient to use.

[0005] Therefore, an integrated desulfurization and denitrification device for flue gas was proposed to solve the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an integrated desulfurization and denitrification device for flue gas, so as to solve the problems of the existing technology using filters for desulfurization and denitrification, which is a single method and has low efficiency in flue gas desulfurization and denitrification, and requires frequent filter replacement, which is inconvenient to use.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an integrated desulfurization and denitrification device for flue gas, comprising...

[0008] Intake pipe;

[0009] A wet reaction assembly, wherein the wet reaction assembly is disposed at one end of the intake pipe;

[0010] A dry absorption assembly, wherein the interior of the dry absorption assembly is fixedly connected to the interior of a wet reaction assembly via a connecting pipe;

[0011] An exhaust pipe, one end of which is fixedly connected to the interior of the dry absorption assembly;

[0012] The wet reaction assembly includes a washing tank, a liquid guide plate is fixedly installed on the top of the inner surface of the washing tank, an inlet pipe is fixedly connected to the top of the liquid guide plate, the outer surface of the inlet pipe is fixedly connected to the top of the washing tank, a number of nozzles are fixedly installed at the bottom of the liquid guide plate, and a drain hopper is fixedly installed at the bottom of the washing tank.

[0013] The dry absorption assembly includes a reaction chamber, an activated carbon layer, and a handle. The interior of the reaction chamber is fixedly connected to the interior of the washing tank. The activated carbon layer is detachably installed inside the reaction chamber, and the handle is fixedly installed on the side of the activated carbon layer away from the reaction chamber.

[0014] It also includes a heat utilization component, which is positioned above the wet reaction component.

[0015] The heat utilization component includes a flue gas box, a water inlet pipe, and an insulation tank. The interior of the flue gas box is fixedly connected to one end of the air inlet pipe. The interior of the flue gas box is fixedly connected to the interior of a washing tank via a connecting pipe. A water storage tank is fixedly installed on the top of the flue gas box. A heat absorption pipe is installed inside the flue gas box. A heat release pipe is installed inside the water storage tank. The top end of the heat absorption pipe is fixedly connected to the bottom end of the heat release pipe. One end of the water inlet pipe is fixedly connected to the interior of the water storage tank. A water pump is fixedly installed on one end of the water storage tank. The suction end of the water pump is fixedly connected to the interior of the water storage tank. The output end of the water pump is fixedly connected to the interior of the insulation tank.

[0016] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0017] In the above scheme, an inlet pipe, a wet reaction assembly, a dry absorption assembly, and an exhaust pipe are set up. First, one end of the inlet pipe is connected to the solution tank. High-temperature flue gas enters the wet reaction assembly through the inlet pipe. At this time, the solution enters the guide plate through the inlet pipe and is then sprayed out by the nozzle, causing the solution to react chemically with the flue gas, thereby desulfurizing and denitrifying. The used solution is discharged from the drain hopper. Then, the flue gas enters the reaction chamber. When the flue gas passes through the activated carbon layer, the activated carbon layer adsorbs various harmful substances in the flue gas. Finally, the flue gas is discharged from the exhaust pipe. Through the above structure, two methods are used to desulfurize and denitrify the flue gas, improving the desulfurization and denitrification efficiency and achieving better desulfurization and denitrification effects.

[0018] A heat utilization component is installed. Before desulfurization and denitrification, high-temperature flue gas enters the flue gas box through the inlet pipe. When the flue gas comes into contact with the heat absorption pipe, the heat absorption pipe absorbs the heat of the flue gas and transfers it to the heat release pipe. Clean water is added to the water storage tank through the water inlet pipe, and the heat release pipe releases heat into the water. When the water in the storage tank has absorbed a large amount of heat, the water pump is started to pump the water to the insulation tank for storage. Through the above structure, heat can be collected to heat the water before the high-temperature flue gas is desulfurized and denitrified, so that the water can be used for heating and other purposes in the future, achieving the effect of environmental protection and energy saving. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the wet reaction assembly structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the dry absorption component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the heat utilization component of this utility model.

[0023] [Figure Labels]

[0024] 1. Air intake pipe;

[0025] 2. Wet reaction assembly; 21. Washing tank; 22. Liquid guide plate; 23. Liquid inlet pipe; 24. Nozzle; 25. Liquid drain hopper;

[0026] 3. Dry absorption assembly; 31. Reaction chamber; 32. Activated carbon layer; 33. Handle;

[0027] 4. Exhaust pipe;

[0028] 5. Heat utilization components; 51. Flue gas box; 52. Water storage tank; 53. Heat absorption pipe; 54. Heat release pipe; 55. Water inlet pipe; 56. Water pump; 57. Insulation tank. Detailed Implementation

[0029] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0030] As attached Figure 1 To be continued Figure 4 An embodiment of this utility model provides an integrated desulfurization and denitrification device for flue gas, including...

[0031] Intake pipe 1;

[0032] Wet reaction assembly 2, which is located at one end of the intake pipe 1;

[0033] The dry absorption assembly 3 is internally connected to the internal part of the wet reaction assembly 2 via a connecting pipe.

[0034] Exhaust pipe 4, one end of which is fixedly connected to the interior of dry absorption assembly 3;

[0035] The wet reaction assembly 2 includes a washing tank 21. A liquid guide plate 22 is fixedly installed on the top of the inner surface of the washing tank 21. An inlet pipe 23 is fixedly connected to the top of the liquid guide plate 22. The outer surface of the inlet pipe 23 is fixedly connected to the top of the washing tank 21. Several nozzles 24 are fixedly installed at the bottom of the liquid guide plate 22. A drain hopper 25 is fixedly installed at the bottom of the washing tank 21.

[0036] The dry absorption assembly 3 includes a reaction chamber 31, an activated carbon layer 32, and a handle 33. The interior of the reaction chamber 31 is fixedly connected to the interior of the washing tank 21. The activated carbon layer 32 is detachably installed inside the reaction chamber 31. The handle 33 is fixedly installed on the side of the activated carbon layer 32 away from the reaction chamber 31.

[0037] It also includes a heat utilization component 5, which is positioned above the wet reaction component 2.

[0038] The heat utilization component 5 includes a flue gas box 51, a water inlet pipe 55, and a heat preservation tank 57. The interior of the flue gas box 51 is fixedly connected to one end of the air inlet pipe 1. The interior of the flue gas box 51 is fixedly connected to the interior of the washing tank 21 through a connecting pipe. A water storage tank 52 is fixedly installed on the top of the flue gas box 51. A heat absorption pipe 53 is installed inside the flue gas box 51. A heat release pipe 54 is installed inside the water storage tank 52. The top end of the heat absorption pipe 53 is fixedly connected to the bottom end of the heat release pipe 54. One end of the water inlet pipe 55 is fixedly connected to the interior of the water storage tank 52. A water pump 56 is fixedly installed on one end of the water storage tank 52. The suction end of the water pump 56 is fixedly connected to the interior of the water storage tank 52. The output end of the water pump 56 is fixedly connected to the interior of the heat preservation tank 57.

[0039] The end of the liquid inlet pipe 23 is connected to the container for storing the solution. Alkaline slurry is usually used as an absorbent to react chemically with the flue gas to absorb sulfur and nitrates.

[0040] The activated carbon layer 32 can be pulled out of the reaction chamber 31 by the handle 33, which makes it convenient to replace the activated carbon layer 32 regularly.

[0041] The working process of this utility model is as follows: First, one end of the liquid inlet pipe 23 is connected to the solution tank. High-temperature flue gas enters the wet reaction component 2 from the gas inlet pipe 1. At this time, the solution enters the liquid guide plate 22 from the liquid inlet pipe 23 and is then sprayed out from the nozzle 24, so that the solution and flue gas can react chemically to achieve desulfurization and denitrification. The used solution will be discharged from the liquid outlet 25. Then the flue gas will enter the reaction chamber 31. When the flue gas passes through the activated carbon layer 32, the activated carbon layer 32 will adsorb various harmful substances in the flue gas. Finally, the flue gas is discharged from the exhaust pipe 4.

[0042] Before desulfurization and denitrification, the high-temperature flue gas enters the flue gas box 51 through the inlet pipe 1. When the flue gas comes into contact with the heat absorption pipe 53, the heat absorption pipe 53 absorbs the heat of the flue gas and transfers it to the heat release pipe 54. Clean water is added to the water storage tank 52 through the water inlet pipe 55, and the heat release pipe 54 releases heat into the water. When the water in the storage tank 52 has absorbed a large amount of heat, the water pump 56 is started to pump the water to the heat preservation tank 57 for storage.

[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0044] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0045] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated desulfurization and denitrification device for flue gas, characterized in that, include Intake pipe (1); A wet reaction assembly (2) is disposed at one end of the air inlet pipe (1); The dry absorption assembly (3) is fixedly connected to the interior of the wet reaction assembly (2) through a connecting pipe; Exhaust pipe (4), one end of which is fixedly connected to the interior of dry absorption assembly (3); The wet reaction assembly (2) includes a washing tank (21), a liquid guide plate (22) is fixedly installed on the top of the inner surface of the washing tank (21), an inlet pipe (23) is fixedly connected to the top of the liquid guide plate (22), the outer surface of the inlet pipe (23) is fixedly connected to the top of the washing tank (21), a number of nozzles (24) are fixedly installed at the bottom of the liquid guide plate (22), and a drain hopper (25) is fixedly installed at the bottom of the washing tank (21).

2. The integrated desulfurization and denitrification device for flue gas according to claim 1, characterized in that, The dry absorption assembly (3) includes a reaction chamber (31), an activated carbon layer (32), and a handle (33). The interior of the reaction chamber (31) is fixedly connected to the interior of the washing tank (21). The activated carbon layer (32) is detachably installed inside the reaction chamber (31). The handle (33) is fixedly installed on the side of the activated carbon layer (32) away from the reaction chamber (31).

3. The integrated desulfurization and denitrification device for flue gas according to claim 1, characterized in that, It also includes a heat utilization component (5), which is disposed above the wet reaction component (2).

4. The integrated desulfurization and denitrification device for flue gas according to claim 3, characterized in that, The heat utilization component (5) includes a flue gas box (51), a water inlet pipe (55), and a heat preservation tank (57). The interior of the flue gas box (51) is fixedly connected to one end of the air inlet pipe (1). The interior of the flue gas box (51) is fixedly connected to the interior of the washing tank (21) through a connecting pipe. A water storage tank (52) is fixedly installed on the top of the flue gas box (51). A heat absorption pipe (53) is installed inside the flue gas box (51). A heat release pipe (54) is installed inside the water storage tank (52). The top end of the heat absorption pipe (53) is fixedly connected to the bottom end of the heat release pipe (54). One end of the water inlet pipe (55) is fixedly connected to the interior of the water storage tank (52). A water pump (56) is fixedly installed on one end of the water storage tank (52). The suction end of the water pump (56) is fixedly connected to the interior of the water storage tank (52). The output end of the water pump (56) is fixedly connected to the interior of the heat preservation tank (57).

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