Flue gas desulfurization device

Abstract

The utility model relates to the field of flue gas desulfurization, in particular to a flue gas desulfurization device which comprises a device shell, a gas inlet pipe and a spraying pipe, the gas inlet pipe is arranged on the left side of the device shell, a first scraping plate is arranged in the device shell, a packing layer is arranged in the device shell, a second scraping plate is arranged above the packing layer, and the spraying pipe is arranged in the device shell. The flue gas desulfurization device disclosed by the utility model has the beneficial effects that flue gas is fully contacted through the spray header and the filler layer, so that the desulfurization efficiency is improved; attachments on the inner wall are removed through the first scraper and the second scraper, and equipment is kept clean; spraying liquid can be recycled through a circulating pipe and a recycling box, and resources are saved; the controller and the observation window enable the desulfurization process to be easy to monitor and control.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to a flue gas desulfurization device. Background Art

[0002] Desulfurization refers to the process of removing sulfur from fuel before combustion and before flue gas emissions. It is one of the important technical measures to prevent and control air pollution. Before flue gas emissions from thermal power plants, the flue gas needs to be desulfurized. Thermal power plants heat water to generate steam when fuel is burned, converting the chemical energy of the fuel into thermal energy. The steam pressure drives the turbine to rotate, converting thermal energy into mechanical energy, and then the turbine drives the generator to rotate, converting mechanical energy into electrical energy.

[0003] In the related technology, the existing desulfurization device does not have a structure for storing and configuring the reaction liquid, and has great limitations in use. After the existing flue gas desulfurization device is used for a long time, a layer of debris will adhere to the inner wall of the device, which will affect the use effect of the device. It is inconvenient for relevant staff to clean it, which wastes a certain amount of human resources. For this reason, we propose a flue gas desulfurization device.

[0004] The above information disclosed in this Background section is only for understanding the background of the present inventive concept and therefore it may contain information that does not constitute prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a flue gas desulfurization device to solve the problem that the existing desulfurization device proposed in the above background technology has no structure for storing and configuring the reaction liquid, and has great limitations in use. After the existing flue gas desulfurization device is used for a long time, a layer of debris will be attached to the inner wall of the device, which will affect the use effect of the device, and it is inconvenient for relevant staff to clean it, which wastes a certain amount of human resources.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A flue gas desulfurization device comprises a device shell, an air intake pipe, a first scraper and a spray pipe, wherein the lower left end of the device shell is connected to the air intake pipe, the air intake pipe is installed with an air intake fan, the right side of the air intake pipe is connected to the inside of the device shell, a first motor is installed at the lower inner end of the device shell, a rotating shaft is connected to the lower end of the first motor, a first scraper is fixedly provided on the side of the rotating shaft through a connecting rod, one side of the first scraper is fitted with the inner wall of the device shell, a packing layer is horizontally installed inside the device shell above the first motor, and the packing layer is installed in the air intake pipe. The material layer is horizontally placed on the upper end of the support block, and four groups of rotating studs are symmetrically installed inside the device shell above the packing layer, and the upper ends of the rotating studs penetrate the wall of the device shell and are connected to the output end of the second motor, and the side of the rotating studs is threadedly engaged with a connecting frame, and the connecting frame is provided with mounting holes at corresponding positions of the rotating studs, and a second scraper is glued on one side of the connecting frame close to the device shell, and the second scraper is fitted with the wall of the device shell, and a spray pipe is horizontally installed on the upper inner end of the device shell, and a plurality of groups of spray heads are installed at intervals at the lower end of the spray pipe.

[0008] In some embodiments, the right side of the spray pipe passes through the device housing and is connected to a connecting pipe, a spray pump is installed on the connecting pipe, the lower end of the connecting pipe is connected to the interior of a batching box, and the batching box is fixed on a support plate.

[0009] In some embodiments, a feeding device is installed on the left side of the upper end of the batching box, the lower end of the feeding device is connected to the interior of the batching box, a solenoid valve is installed on the feeding device, and a stirring component is installed on the batching box.

[0010] In some embodiments, a circulation pipe is provided at the lower end of the ingredient box, a circulation pump is installed on the circulation pipe, one end of the circulation pipe is connected to a spray liquid recovery box, the upper end of the spray liquid recovery box is connected to the interior of the device casing, and a filter is installed at the lower end of the device casing.

[0011] In some embodiments, an exhaust pipe is provided at the central position of the upper end of the device casing, an exhaust fan is installed on the exhaust pipe, a support column is symmetrically installed at the lower end of the device casing, and the lower end of the rotating shaft is rotatably set in a movable sleeve at the upper end of the support rod.

[0012] In some embodiments, a cabinet door is sealed and installed at the front end of the device housing, and a controller and an observation window are installed on the cabinet door.

[0013] The beneficial effects of the utility model are:

[0014] The flue gas is fully contacted through the spray head and the packing layer to improve the desulfurization efficiency; the first and second scrapers are used to remove the attachments on the inner wall to keep the equipment clean; the spray liquid can be recycled through the circulation pipe and recovery box to save resources; the controller and observation window make the desulfurization process easy to monitor and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a flue gas desulfurization device proposed by the utility model;

[0016] Figure 2 This is a front view of a flue gas desulfurization device proposed by the utility model;

[0017] Figure 3 This is a schematic structural diagram of a connection frame portion of a flue gas desulfurization device proposed by the utility model.

[0018] In the figure: 1 is the device shell, 2 is the support column, 3 is the spray liquid recovery box, 4 is the filter screen, 5 is the air intake fan, 6 is the air intake pipe, 7 is the support rod, 8 is the first scraper, 9 is the rotating shaft, 10 is the first motor, 11 is the packing layer, 12 is the rotating stud, 13 is the spray pipe, 14 is the spray head, 15 is the second motor, 16 is the exhaust fan, 17 is the exhaust pipe, 18 is the connecting pipe, 19 is the spray pump, 20 is the feeding device, 21 is the stirring component, 22 is the batching box, 23 is the support plate, 24 is the circulation pump, 25 is the circulation pipe, 26 is the cabinet door, 27 is the observation window, 28 is the controller, 29 is the connecting frame, 30 is the mounting hole, and 31 is the second scraper. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Reference Figure 1 , 2 3. A flue gas desulfurization device comprises a device housing 1, an air intake pipe 6, a first scraper 8 and a spray pipe 13. The left lower end of the device housing 1 is connected with the air intake pipe 6, and the air intake fan 5 is installed on the air intake pipe 6. The right side of the air intake pipe 6 is connected with the inside of the device housing 1. A first motor 10 is installed at the lower end of the inside of the device housing 1. A rotating shaft 9 is connected to the lower end of the first motor 10. A first scraper 8 is fixedly connected to the side of the rotating shaft 9 through a connecting rod. One side of the first scraper 8 is fitted with the inner wall of the device housing 1. A packing layer 11 is horizontally installed inside the device housing 1 above the first motor 10. The packing layer 11 is horizontally placed on the upper end of the support block. Four packing layers 11 are symmetrically installed inside the device housing 1 above the packing layer 11. A rotating stud 12 is provided, the upper end of the rotating stud 12 penetrates the wall of the device housing 1 and is connected to the output end of the second motor 15, a connecting frame 29 is provided on the side of the rotating stud 12 for threaded engagement, a mounting hole 30 is provided at the corresponding position of the rotating stud 12, a second scraper 31 is glued on one side of the connecting frame 29 close to the device housing 1, the second scraper 31 is fitted with the wall of the device housing 1, a spray pipe 13 is horizontally installed on the upper end of the inner part of the device housing 1, and a plurality of groups of spray heads 14 are installed at intervals at the lower end of the spray pipe 13, the flue gas is fully desulfurized by the spray heads 14 and the packing layer 11, and the desulfurization effect is effectively improved, and the substances attached to the inner wall of the device housing 1 are scraped off by the first scraper 8 and the second scraper 31.

[0023] When the embodiments of the present utility model are implemented, Figure 1 , 2As shown, the right side of the spray pipe 13 passes through the device housing 1 and is connected to the connecting pipe 18, a spray pump 19 is installed on the connecting pipe 18, the lower end of the connecting pipe 18 is connected to the inside of the batching box 22, the batching box 22 is fixed on the support plate 23, a feeding device 20 is installed on the left side of the upper end of the batching box 22, the lower end of the feeding device 20 is connected to the inside of the batching box 22, a solenoid valve is installed on the feeding device 20, and a stirring component 21 is installed on the batching box 22. Through the feeding device 20, the batching box 22 and the stirring component 21, the spray liquid can be configured at any time to ensure the effect of spray desulfurization.

[0024] When the embodiments of the present utility model are implemented, Figure 1 , 2 As shown, a circulation pipe 25 is provided at the lower end of the batching box 22, a circulation pump 24 is installed on the circulation pipe 25, one end of the circulation pipe 25 is connected to the spray liquid recovery box 3, the upper end of the spray liquid recovery box 3 is connected to the interior of the device casing 1, a filter screen 4 is installed at the lower end of the device casing 1, and a supplementary water pipe and a drain pipe are provided at the front end of the spray liquid recovery box 3, so that the spray liquid can be supplemented or discharged at any time to ensure the desulfurization effect of the spray liquid.

[0025] When the embodiments of the present utility model are implemented, Figure 1 , 2 As shown, an exhaust pipe 17 is provided at the central position of the upper end of the device casing 1, and an exhaust fan 16 is installed on the exhaust pipe 17. A support column 2 is symmetrically installed at the lower end of the device casing 1. The lower end of the rotating shaft 9 is rotatably set in a movable sleeve at the upper end of the support rod 7. A cabinet door 26 is sealed and installed at the front end of the device casing 1. A controller 28 and an observation window 27 are installed on the cabinet door 26. The contact positions between the components on the device casing 1 and the device casing 1 are sealed to avoid smoke leakage. The controller 28 and the observation window 27 can facilitate the observation and control of the desulfurization process. The packing layer 11 can use metal packing or ceramic packing. The spray liquid uses an alkaline solution, such as sodium carbonate solution. The desulfurizer is set in the feeding device 20, which can be calcium oxide or magnesium oxide powder.

[0026] In this embodiment, the flue gas enters the device through the air intake pipe 6, and the air intake fan 5 helps the flue gas to flow smoothly; the flue gas first contacts the packing layer 11, and the packing layer 11 increases the contact area between the flue gas and the spray liquid, thereby improving the desulfurization efficiency; the spray pipe 13 sprays the flue gas through multiple groups of spray heads 14, and the spray liquid fully reacts with the flue gas to remove the sulfide in the flue gas; the first scraper 8 and the second scraper 31 scrape off the attachments on the inner wall of the device to keep the inside of the device clean; the spray first enters the spray liquid recovery box 3, and then flows back to the batching box 22 through the circulation pipe 25. The circulation pump 24 helps the spray liquid to circulate, and the spray liquid recovery box 3 replenishes or discharges the spray liquid through the replenishing water pipe and the drain pipe; the flue gas after desulfurization is discharged through the exhaust pipe 17, and the exhaust fan 16 helps the flue gas to be discharged. After the spray liquid has been used for a long time, it can be fed into the batching box 22 through the feeding device 20 to mix the spray liquid to ensure the desulfurization effect of the spray liquid.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flue gas desulfurization device, comprising a device housing (1), an air inlet pipe (6), a first scraper (8) and a spray pipe (13), characterized in that: The lower left end of the device housing (1) is connected to an air intake pipe (6), an air intake fan (5) is installed on the air intake pipe (6), the right side of the air intake pipe (6) is connected to the inside of the device housing (1), a first motor (10) is installed at the lower inner end of the device housing (1), a rotating shaft (9) is connected to the lower end of the first motor (10), a first scraper (8) is fixedly connected to the side of the rotating shaft (9) via a connecting rod, one side of the first scraper (8) is arranged in contact with the inner wall of the device housing (1), a packing layer (11) is horizontally installed above the first motor (10) inside the device housing (1), the packing layer (11) is horizontally placed on the upper end of the support block, and the packing layer (11) Four groups of rotating studs (12) are symmetrically installed inside the device housing (1) above the device housing (1); the upper ends of the rotating studs (12) penetrate the wall surface of the device housing (1) and are connected to the output end of the second motor (15); the side of the rotating studs (12) is threadedly engaged with a connecting frame (29); the connecting frame (29) is provided with a mounting hole (30) at a corresponding position of the rotating studs (12); a second scraper (31) is glued to a side of the connecting frame (29) close to the device housing (1); the second scraper (31) is fitted with the wall surface of the device housing (1); a spray pipe (13) is horizontally installed at the upper end of the inside of the device housing (1); and a plurality of groups of spray heads (14) are installed at intervals at the lower end of the spray pipe (13).

2. A flue gas desulfurization device according to claim 1, characterized in that: The right side of the spray pipe (13) penetrates the device housing (1) and is connected to a connecting pipe (18), on which a spray pump (19) is installed, and the lower end of the connecting pipe (18) is connected to the inside of a batching box (22), and the batching box (22) is fixedly arranged on a support plate (23).

3. A flue gas desulfurization device according to claim 2, characterized in that: A feeding device (20) is installed on the left side of the upper end of the batching box (22), and the lower end of the feeding device (20) is connected to the interior of the batching box (22). A solenoid valve is installed on the feeding device (20), and a stirring component (21) is installed on the batching box (22).

4. A flue gas desulfurization device according to claim 2, characterized in that: The lower end of the batching box (22) is connected to a circulation pipe (25), and a circulation pump (24) is installed on the circulation pipe (25). One end of the circulation pipe (25) is connected to a spray liquid recovery box (3), and the upper end of the spray liquid recovery box (3) is connected to the interior of the device housing (1). The lower end of the device housing (1) is installed with a filter screen (4).

5. A flue gas desulfurization device according to claim 1, characterized in that: An exhaust pipe (17) is provided at the central position of the upper end of the device housing (1), and an exhaust fan (16) is installed on the exhaust pipe (17). A support column (2) is symmetrically installed at the lower end of the device housing (1), and the lower end of the rotating shaft (9) is rotatably arranged in a movable sleeve at the upper end of the support rod (7).

6. A flue gas desulfurization device according to claim 1, characterized in that: A cabinet door (26) is sealed and installed at the front end of the device housing (1), and a controller (28) and an observation window (27) are installed on the cabinet door (26).

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