Flue gas pretreatment device

Abstract

The utility model discloses a flue gas pretreatment device which comprises a flue gas reducing barrel, the flue gas reducing barrel is transversely arranged, the open end of the flue gas reducing barrel is a flue gas inlet, and the top side of the sealed end of the flue gas reducing barrel is vertically provided with a flue gas outlet; a cross beam is transversely installed at the smoke inlet, a first motor is installed at the midpoint of the sealed end of the smoke reducing barrel, the first motor is fixedly connected with a rotating shaft, and the other end of the rotating shaft is rotationally connected to the midpoint of the cross beam; a plurality of sleeves are fixedly mounted in the middle of the rotating shaft, and a plurality of blades are fixedly connected to the side wall of each sleeve; a sewage discharging hopper is obliquely installed on the side wall of the lower side of the smoke reducing barrel, a discharging groove is formed in the side wall of the lower side of the smoke reducing barrel, the sewage discharging hopper is communicated with an inner cavity of the smoke reducing barrel, particulate matter in smoke can be attached to the surfaces of all blades through the blades and along with rotation of a rotating shaft driven by a first motor, the settling purpose is achieved, and attachments on the surfaces of the blades are scraped away; the smoke dust can be continuously settled.

Description

Technical Field

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

[0002] Flue gas from coal-fired power plants is one of the main sources of air pollutants, so it is necessary to strictly control the emission of air pollutants such as dust, sulfur dioxide, nitrogen oxides, and heavy metal mercury from coal-fired power plants. The main purpose of flue gas pretreatment is to remove particulate matter in the flue gas to reduce air pollution. The existing flue gas pretreatment device has a poor sedimentation effect on particulate matter and cannot discharge the settled particulate matter in time, which reduces the sedimentation effect and increases the pressure of flue gas treatment in the later stage. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a flue gas pretreatment device.

[0004] The utility model provides a smoke pretreatment device, comprising a smoke reduction barrel, the smoke reduction barrel is placed horizontally, the open end of the smoke reduction barrel is a smoke inlet, and the top side of the sealed end of the smoke reduction barrel is vertically provided with a smoke outlet;

[0005] A crossbeam is installed transversely at the smoke inlet, a first motor is installed at the midpoint of the sealed end of the smoke reducing barrel, the first motor is fixedly connected to a rotating shaft, and the other end of the rotating shaft is rotatably connected to the midpoint of the crossbeam;

[0006] A plurality of sleeves are fixedly installed in the middle of the rotating shaft, and the side walls of each group of the sleeves are fixedly connected to a plurality of groups of blades;

[0007] A sewage hopper is obliquely installed on the lower side wall of the smoke reduction barrel, and a material discharge trough is opened on the lower side wall of the smoke reduction barrel to connect the sewage hopper and the inner cavity of the smoke reduction barrel.

[0008] Preferably, the blades of each group of the sleeve side walls are distributed at the center of the corresponding sleeve side wall.

[0009] Preferably, the plane where each group of blades are located is perpendicular to the axis of the smoke reduction barrel, and the side of the blades close to the smoke inlet is the attachment surface.

[0010] Preferably, the sewage hopper is equipped with multiple groups of scraping mechanisms for scraping away the attachments on each group of blades;

[0011] The scraping mechanism includes a strip scraper and a second motor, the strip scraper is vertically installed below the sleeve, the plane where the strip scraper is located is perpendicular to the plane where the blade is located, and the side edge of the strip scraper is in close contact with the attachment surface of the blade on the sleeve;

[0012] A rack is provided on the back side of the strip-shaped scraper. The second motor is fixedly connected with a gear. The gear and the rack are meshed with each other. The gear is rotated to drive the strip-shaped scraper to move in the vertical direction.

[0013] Preferably, a scraper is obliquely installed on the lower side of the inner cavity of the sewage hopper, and the front end of the scraper is in close contact with the front side of the strip scraper.

[0014] Preferably, the scraper blade is made of elastic material, a cam is installed on the sewage bucket, and the cam is located at the lower side of the scraper blade. The cam is driven to rotate by a driving member, thereby driving the front end of the scraper blade to vibrate.

[0015] In the utility model, a flue gas pretreatment device is proposed. The smoke enters the inner cavity of the smoke reduction barrel from the smoke inlet and is discharged from the smoke outlet. After passing through layers of blades, as the first motor drives the rotating shaft to rotate, particulate matter in the smoke will adhere to the surface of all blades to achieve the purpose of sedimentation and be discharged from the sewage hopper. The back side of the strip scraper is provided with a rack, and the second motor is fixedly connected with a gear, the gear and the rack are meshed with each other, and the gear is rotated to drive the strip scraper to move in the vertical direction. When particles are attached to the attachment surface of the blade, the second motor drives the gear to rotate, thereby driving the strip scraper to move in the vertical direction through the meshing rack. The strip scraper rises, and its side wall fits with the attachment surface of the blade. At this time, as the first motor drives the rotating shaft to rotate, the strip scraper will scrape off all the particles on the attachment surface of the blade, a part of which falls directly into the sewage discharge bucket, and a part of which is still attached to the strip scraper. The remaining particles attached to the strip scraper are shoveled off by the scraper and discharged from the sewage discharge bucket. The driving member drives the cam to rotate, which drives the front end of the scraper to vibrate. The driving member drives the cam to rotate, which drives the front end of the scraper to vibrate, and shakes off the shoveled particles and discharges them from the sewage discharge port.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 This is a front cross-sectional view of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the utility model;

[0021] Explanation of the numbers in the figure: 1. Smoke lowering barrel; 101. Smoke inlet; 102. Smoke outlet; 103. Crossbeam; 104. Feed chute; 2. First motor; 3. Rotating shaft; 4. Strip scraper; 401. Rack; 5. Second motor; 6. Gear; 7. Scraper; 8. Drain bucket; 9. Cam; 10. Sleeve; 11. Blade. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] like Figure 1-Figure 4 A smoke pretreatment device shown includes a smoke reduction barrel 1, the smoke reduction barrel 1 is placed horizontally, the open end of the smoke reduction barrel 1 is a smoke inlet 101, and the top side of the sealed end of the smoke reduction barrel 1 is vertically provided with a smoke outlet 102;

[0024] The smoke inlet 101 is laterally provided with a crossbeam 103, and the midpoint of the sealed end of the smoke reducing barrel 1 is provided with a first motor 2, the first motor 2 is fixedly connected with a rotating shaft 3, and the other end of the rotating shaft 3 is rotatably connected to the midpoint of the crossbeam 103;

[0025] A plurality of sleeves 10 are fixedly installed in the middle of the rotating shaft 3, and a plurality of blades 11 are fixedly connected to the side walls of each set of the sleeves 10;

[0026] A sewage hopper 8 is obliquely installed on the lower side wall of the smoke reduction barrel 1 , and a material discharge chute 104 is opened on the lower side wall of the smoke reduction barrel 1 to connect the sewage hopper 8 with the inner cavity of the smoke reduction barrel 1 .

[0027] The smoke enters the inner cavity of the smoke reduction barrel 1 from the smoke inlet 101 and is discharged from the smoke outlet 102. After passing through the layers of blades 11, as the first motor 2 drives the rotating shaft 3 to rotate, the particles in the smoke will adhere to the surface of all blades 11, achieving the purpose of sedimentation, and then discharged from the sewage hopper 8.

[0028] Preferably, the blades 11 of each group of the side walls of the sleeve 10 are distributed at the center of the corresponding side wall of the sleeve 10, and are evenly attached to the particulate matter in the smoke to achieve the purpose of sedimentation.

[0029] Preferably, the plane where each group of blades 11 is located is perpendicular to the axis of the smoke reducer 1, and the side of the blades 11 close to the smoke inlet 101 is an attachment surface.

[0030] Preferably, the sewage hopper 8 is equipped with multiple groups of scraping mechanisms for scraping away the attachments on each group of blades 11;

[0031] The scraping mechanism includes a strip scraper 4 and a second motor 5. The strip scraper 4 is vertically installed below the sleeve 10. The plane where the strip scraper 4 is located is perpendicular to the plane where the blade 11 is located. The side of the strip scraper 4 is in close contact with the attachment surface of the blade 11 on the sleeve 10.

[0032] A rack 401 is provided on the back side of the strip scraper 4. The second motor 5 is fixedly connected with a gear 6. The gear 6 and the rack 401 are meshed with each other. The gear 6 is rotated to drive the strip scraper 4 to move in the vertical direction.

[0033] When particulate matter is attached to the attachment surface of the blade 11, the second motor 5 drives the gear 6 to rotate, thereby driving the strip scraper 4 to move in the vertical direction through the meshing rack 401. The strip scraper 4 rises, and its side wall fits with the attachment surface of the blade 11. At this time, as the first motor 2 drives the rotating shaft 3 to rotate, the strip scraper 4 will scrape off all the particulate matter on the attachment surface of the blade 11, a part of which falls directly into the sewage hopper 8, and a part of which is still attached to the strip scraper 4. The attachments on the surface of the blade 11 are scraped off, and the smoke and dust can be continuously settled.

[0034] Preferably, a scraper blade 7 is obliquely installed on the lower side of the inner cavity of the sewage hopper 8, and the front end of the scraper blade 7 is in close contact with the front side of the strip scraper 4. The remaining particles attached to the strip scraper 4 are scraped off by the scraper blade 7 and discharged from the sewage hopper 8.

[0035] Preferably, the scraper blade 7 is made of elastic material, and a cam 9 is installed on the sewage bucket 8. The cam 9 is located at the lower side of the scraper blade 7. The cam 9 is rotated by a driving member, which drives the front end of the scraper blade 7 to vibrate. The driving member drives the cam 9 to rotate, which drives the front end of the scraper blade 7 to vibrate, thereby shaking off the shoveled particles and discharging them from the sewage outlet.

[0036] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] 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 pretreatment device, characterized in that: It comprises a smoke reduction barrel (1), the smoke reduction barrel (1) is placed horizontally, the open end of the smoke reduction barrel (1) is a smoke inlet (101), and the top side of the sealed end of the smoke reduction barrel (1) is vertically provided with a smoke outlet (102); A crossbeam (103) is installed transversely at the smoke inlet (101); a first motor (2) is installed at the midpoint of the sealed end of the smoke reduction barrel (1); the first motor (2) is fixedly connected to a rotating shaft (3); the other end of the rotating shaft (3) is rotatably connected to the midpoint of the crossbeam (103); A plurality of sleeves (10) are fixedly mounted in the middle of the rotating shaft (3), and the side walls of each group of the sleeves (10) are fixedly connected to a plurality of groups of blades (11); A sewage hopper (8) is obliquely mounted on the lower side wall of the smoke reduction barrel (1), and a material discharge chute (104) is provided on the lower side wall of the smoke reduction barrel (1) to connect the sewage hopper (8) with the inner cavity of the smoke reduction barrel (1).

2. A flue gas pretreatment device according to claim 1, characterized in that: The blades (11) of each group of the sleeve (10) side walls are distributed at the center of the corresponding sleeve (10) side wall.

3. A flue gas pretreatment device according to claim 2, characterized in that: The plane where each group of blades (11) is located is perpendicular to the axis of the smoke reduction barrel (1), and the side of the blades (11) close to the smoke inlet (101) is an attachment surface.

4. A flue gas pretreatment device according to claim 3, characterized in that: The sewage hopper (8) is equipped with multiple groups of scraping mechanisms for scraping away the attached materials on each group of blades (11); The scraping mechanism comprises a strip scraper (4) and a second motor (5); the strip scraper (4) is vertically installed below the sleeve (10); the plane where the strip scraper (4) is located is perpendicular to the plane where the blade (11) is located; the side edge of the strip scraper (4) is in close contact with the attachment surface of the blade (11) on the sleeve (10); The back side of the strip-shaped scraper (4) is provided with a rack (401); the second motor (5) is fixedly connected with a gear (6); the gear (6) and the rack (401) are meshed with each other; the gear (6) is rotated to drive the strip-shaped scraper (4) to move in the vertical direction.

5. A flue gas pretreatment device according to claim 4, characterized in that: A scraper (7) is obliquely mounted on the lower side of the inner cavity of the sewage discharge bucket (8), and the front end of the scraper (7) is in close contact with the front side of the strip scraper (4).

6. A flue gas pretreatment device according to claim 5, characterized in that: The scraper (7) is made of elastic material. A cam (9) is installed on the sewage bucket (8). The cam (9) is located at the lower side of the scraper (7). The cam (9) is driven by a driving member to rotate, thereby driving the front end of the scraper (7) to vibrate.

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