Combined heat and power generation flue gas large wet desulphurization device

Abstract

The utility model discloses a combined heat and power generation flue gas large wet desulphurization device, and belongs to the technical field of flue gas treatment. The dust removal frame is installed on one side of the desulfurization box in an embedded mode, the inner wall of the dust removal frame is detachably connected with an inclined filter frame, the inner wall of the filter frame is connected with a filter screen used for pre-filtering the cogeneration flue gas, the side face, away from the desulfurization box, of the dust removal frame communicates with an air inlet hopper, and the air inlet hopper is connected with a sweeping assembly; the material receiving box is installed at the bottom end of the dust removal frame in an embedded mode, the inner wall of the material receiving box is connected with an inclined C-shaped limiting plate, the inclined face of the limiting plate is rotationally connected with an air blocking plate, an inclined electric push rod is installed in the side face of the material receiving box in an embedded mode, a moving part of the inclined electric push rod is connected with a pulley used for jacking up the air blocking plate, and a sealing gasket is bonded to the periphery of the air blocking plate. And a magnet block is adhered to the inclined surface of the air blocking plate. The combined heat and power generation flue gas large wet desulphurization device not only can filter flue gas, but also can take materials without stopping gas supply.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas treatment technology, and in particular to a large-scale wet desulfurization device for combined heat and power flue gas. Background Technology

[0002] Desulfurization is a technology for treating industrial waste gas, which involves the chemical absorption of SO2 from industrial flue gas. Spray scrubbing is a crucial unit in desulfurization, enabling gas-liquid mixing and accelerating the reaction and absorption of sulfur-containing gases. Desulfurization systems recycle the desulfurizing agent; however, impurities and dust present in the flue gas can affect this recycling process.

[0003] A search revealed a Chinese patent document (authorization announcement number CN218688109U) entitled "Spray Device for Ultra-High Efficiency Wet Desulfurization of Flue Gas in Cogeneration," which includes a spray tower. A fixed pipe is located in the middle of the spray tower, and a spray outlet pipe is installed inside the fixed pipe. One end of the spray outlet pipe extends out of the spray tower and is connected to a water pump. Multiple bends are evenly arranged on the spray outlet pipe, and these bends are rotatably sealed to a rotating pipe. A water storage box is connected to the bottom of the rotating pipe, and a first and second diversion pipe are respectively installed on both sides of the water storage box. First and second spray heads are evenly arranged on the first and second diversion pipes, respectively. A wastewater tank is located at the bottom of the spray tower. By setting up multiple diversion pipes and spray heads, the spray area is expanded. The rotating pipe with a driven gear and a driving gear rotate the spray device, resulting in insufficient and uneven mixing of flue gas and liquid. The wastewater tank and the circulating water pipe with a wastewater pump effectively save water resources. The desulfurization unit recycles the desulfurizing agent, but impurities and dust in the flue gas can affect the recycling of the desulfurizing agent. Utility Model Content

[0004] The purpose of this invention is to provide a wet desulfurization device for combined heat and power flue gas to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined heat and power flue gas wet desulfurization device, comprising:

[0006] Desulfurization box;

[0007] The inclined dust collector frame is embedded in one side of the desulfurization box. The inner wall of the dust collector frame is detachably connected to an inclined filter frame. The inner wall of the filter frame is connected to a filter screen for pre-filtering the flue gas from the cogeneration plant. The side of the dust collector frame away from the desulfurization box is connected to an air inlet hopper, and the air inlet hopper is connected to a cleaning component.

[0008] The receiving box is embedded in the bottom of the dust collector frame. The inner wall of the receiving box is connected to an inclined C-shaped limiting plate. The inclined surface of the limiting plate is rotatably connected to an air-blocking plate. An inclined electric push rod is embedded in the side of the receiving box. The moving part of the inclined electric push rod is connected to a pulley for lifting the air-blocking plate.

[0009] As a preferred embodiment, a sealing gasket is bonded to the outer periphery of the air-blocking plate, a magnet is bonded to the inclined surface of the air-blocking plate, and an iron block that attracts the magnet is bonded to the outer periphery of the pulley.

[0010] As a preferred embodiment, the side of the receiving box is rotatably connected to an unloading plate with an embedded viewing window, and the unloading plate is connected and fixed to the receiving box by a latch.

[0011] As a preferred embodiment, the cleaning components include:

[0012] A rotary motor is mounted on the side of the air intake hopper via a motor mount, and the output shaft of the rotary motor passes through the air intake hopper and is connected to a rotating rod.

[0013] The cleaning brush, attached to the side of the rotating rod, is used to clean the filter screen.

[0014] As a preferred embodiment, the inner top wall of the desulfurization box is equipped with multiple spray plates, and the bottom end of the spray plates is equipped with multiple nozzles for forming a water curtain and performing large-scale wet desulfurization on the cogeneration flue gas.

[0015] As a preferred embodiment, a power unit is installed at the top of the desulfurization box, which provides desulfurizing agent to the spray plate.

[0016] As a preferred embodiment, the inner wall of the lower half of the desulfurization box is connected to an inclined assembly frame, and the inner wall of the assembly frame is connected to a filter screen for filtering the desulfurizing agent. The power equipment is connected to the lower half of the desulfurization box through a connecting pipe.

[0017] As a preferred embodiment, the desulfurization box is connected to an exhaust pipe on its outer periphery.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0019] This combined heat and power (CHP) flue gas wet desulfurization unit features a dust collector frame that allows for air intake, and a filter screen that pre-treats the CHP flue gas, reducing its impact on the desulfurizing agent. The inclined filter screen not only increases the filtration area but also facilitates the impact of the flue gas on the filter screen, aiding in the feeding of the filter material. A rotary motor drives a rotating rod, which in turn drives a cleaning brush to clean the filter screen, preventing it from becoming clogged.

[0020] In this combined heat and power flue gas wet desulfurization unit, the filtered material that is swept off falls into the receiving box. Compared to being in the dust collector frame, this reduces the impact on the filter screen. When unloading is required, the tilting electric push rod is extended, causing the pulley to lift the air-blocking plate, thereby sealing the lower half of the receiving box. At this time, the unloading plate is opened to remove the material, realizing the material removal operation without stopping the air supply. During this process, the attraction between the magnet and the iron block brings the air-blocking plate closer to the pulley, preventing the air-blocking plate from moving around randomly.

[0021] This combined heat and power flue gas wet desulfurization unit uses a spray plate to spray desulfurizing agent to form a water curtain, which performs wet desulfurization treatment on the combined heat and power flue gas. The filter screen of the assembly frame can filter the desulfurizing agent and is recycled by the power equipment.

[0022] This combined heat and power flue gas wet desulfurization unit can not only filter flue gas, but also extract materials without interrupting the gas flow. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a cross-sectional view of the dust removal frame of this utility model;

[0027] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A;

[0028] Figure 5 This is a right-side view of the limiting plate of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] In the picture:

[0031] 1. Desulfurization box; 2. Dust removal frame; 3. Filter frame; 4. Air inlet hopper; 5. Cleaning assembly; 6. Material receiving box; 7. Limiting plate; 8. Air blocking plate; 9. Inclined electric actuator; 10. Pulley; 11. Magnet block; 12. Iron block; 13. Unloading plate; 14. Spray plate; 15. Nozzle; 16. Power equipment; 17. Assembly frame; 18. Connecting pipe; 19. Air outlet pipe;

[0032] 51. Rotary motor; 52. Rotating rod; 53. Cleaning brush. Detailed Implementation

[0033] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0034] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0035] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0036] This application is for the treatment of flue gas from combined heat and power plants. Therefore, all instruments and structures are treated with anti-corrosion measures and are replaced and repaired to reduce the impact of corrosion damage to instruments and structures.

[0037] Please see Figures 1 to 5 As shown, a combined heat and power (CHP) flue gas wet desulfurization unit, in this embodiment, includes:

[0038] Desulfurization box 1;

[0039] The inclined dust collector frame 2 is embedded in one side of the desulfurization box 1. The inner wall of the dust collector frame 2 is detachably connected to an inclined filter frame 3. The inner wall of the filter frame 3 is connected to a filter screen for pre-filtering the cogeneration flue gas. The cogeneration flue gas enters the air inlet hopper 4. The filter screen of the filter frame 3 can treat the cogeneration flue gas. The inclined setting of the filter screen not only increases the filtration area, but also facilitates the impact of the flue gas on the filter screen and assists in the discharge of the filter material. The side of the dust collector frame 2 away from the desulfurization box 1 is connected to the air inlet hopper 4. The outer periphery of the desulfurization box 1 is connected to the air outlet pipe 19, which connects the air inlet hopper 4 to the air inlet equipment and the air outlet pipe 19 to the air outlet equipment.

[0040] The receiving box 6 is embedded in the bottom of the dust collector frame 2. The inner wall of the receiving box 6 is connected to an inclined C-shaped limiting plate 7. The inclined surface of the limiting plate 7 is rotatably connected to an air-blocking plate 8. An inclined electric push rod 9 is embedded in the side of the receiving box 6. The moving part of the inclined electric push rod 9 is connected to a pulley 10 for lifting the air-blocking plate 8. A sealing gasket is glued to the outer periphery of the air-blocking plate 8. A magnet 11 is glued to the inclined surface of the air-blocking plate 8. An iron block 12 that attracts the magnet 11 is glued to the outer periphery of the pulley 10. The filtered material that is swept off will fall into the receiving box 6. When unloading is required, the inclined electric push rod 9 is extended so that the pulley 10 lifts the air-blocking plate 8, thereby sealing the lower half of the receiving box 6. At this time, the unloading plate 13 is opened to remove the material, realizing the material removal operation without stopping the air supply.

[0041] The side of the receiving box 6 is rotatably connected to an unloading plate 13 with an embedded viewing window. The unloading plate 13 is connected and fixed to the receiving box 6 by a latch.

[0042] The air intake hopper 4 is connected to a cleaning assembly 5, which includes:

[0043] A rotary motor 51 is mounted on the side of the air intake hopper 4 via a motor mount. The output shaft of the rotary motor 51 passes through the air intake hopper 4 and is connected to a rotating rod 52.

[0044] The cleaning brush 53 is connected to the side of the rotating rod 52 and is used to clean the filter screen. The rotating motor 51 drives the rotating rod 52 to rotate, which in turn drives the cleaning brush 53 to rotate, so that the cleaning brush 53 cleans the filter screen and prevents the filter screen from being blocked.

[0045] Multiple spray plates 14 are installed on the inner top wall of the desulfurization box 1. Multiple nozzles 15 are installed at the bottom of the spray plates 14 to form a water curtain for wet desulfurization of the cogeneration flue gas. A power unit 16 is installed at the top of the desulfurization box 1. The power unit 16 provides desulfurizing agent to the spray plates 14. An inclined assembly frame 17 is connected to the inner wall of the lower half of the desulfurization box 1. A filter screen for filtering the desulfurizing agent is connected to the inner wall of the assembly frame 17. The power unit 16 is connected to the lower half of the desulfurization box 1 through a connecting pipe 18. When the flue gas enters the desulfurization box 1, the desulfurizing agent sprayed by the nozzles 15 of the spray plates 14 can form a water curtain to perform wet desulfurization treatment on the cogeneration flue gas. The gas is discharged from the outlet pipe 19. The filter screen of the assembly frame 17 can filter the desulfurizing agent and is recycled by the power unit 16.

[0046] The tilting electric actuator 9, the power device 16, and the rotary motor 51 are all conventional instruments. Their working principles, dimensions, and models are irrelevant to the problem solved by this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0047] Working principle

[0048] This combined heat and power (CHP) flue gas wet desulfurization unit connects the inlet hopper 4 to the inlet equipment and the outlet pipe 19 to the outlet equipment. The CHP flue gas enters the inlet hopper 4, where the filter screen of the filter frame 3 processes it. A rotary motor 51 drives a rotating rod 52, which in turn rotates a cleaning brush 53, cleaning the filter screen. The cleaned filter material falls into the receiving box 6. When unloading is required, the tilting electric push rod 9 is controlled. The extension causes the pulley 10 to lift the air-blocking plate 8, thereby sealing the lower half of the material box 6. At this time, the unloading plate 13 is opened to remove the material, realizing the material removal operation without stopping the air supply. Then the flue gas enters the desulfurization box 1. The desulfurizing agent sprayed from the nozzle 15 of the spray plate 14 can form a water curtain to perform large wet desulfurization treatment on the cogeneration flue gas. The gas is discharged from the outlet pipe 19. The filter screen of the assembly frame 17 can filter the desulfurizing agent and is recycled by the power equipment 16.

[0049] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined heat and power flue gas large wet desulfurization device, characterized in that, Include: Desulfurization tank (1); The dust removal frame (2) is obliquely arranged and inlaid on one side of the desulfurization tank (1). The inner wall of the dust removal frame (2) is detachably connected with an inclined filter frame (3). The inner wall of the filter frame (3) is connected with a filter screen for pre-filtering of combined heat and power flue gas. The side of the dust removal frame (2) away from the desulfurization tank (1) is communicated with a gas inlet hopper (4). The gas inlet hopper (4) is connected with a cleaning assembly (5). The receiving box (6) is inlaid at the bottom end of the dust removal frame (2). The inner wall of the receiving box (6) is connected with an inclined C-shaped limiting plate (7). The inclined surface of the limiting plate (7) is rotatably connected with a gas blocking plate (8). The side of the receiving box (6) is inlaid with an inclined electric push rod (9). The moving part of the inclined electric push rod (9) is connected with a pulley (10) for lifting the gas blocking plate (8).

2. The device according to claim 1, characterized in that, The outer periphery of the gas blocking plate (8) is bonded with a sealing gasket. The inclined surface of the gas blocking plate (8) is bonded with a magnet block (11). The outer periphery of the pulley (10) is bonded with an iron block (12) attracted to the magnet block (11).

3. The device according to claim 1, characterized in that, The side of the receiving box (6) is rotatably connected with a discharging plate (13) inlaid with a perspective window.

4. The device according to claim 1, characterized in that, The cleaning assembly (5) comprises: A rotating motor (51) is installed on the side of the gas inlet hopper (4) through a motor base. The output shaft of the rotating motor (51) is connected with a rotating rod (52) penetrating through the gas inlet hopper (4). A cleaning brush (53) is connected to the side of the rotating rod (52) for cleaning the filter screen.

5. The combined heat and power flue gas large wet desulphurization device according to claim 4, characterized in that, A plurality of spray plates (14) are installed on the inner top wall of the desulfurization tank (1). The bottom end of the spray plate (14) is provided with a plurality of spray heads (15) for forming a water curtain and carrying out large-wet desulfurization on combined heat and power flue gas.

6. A combined heat and power flue gas large wet desulphurization device according to claim 5, characterized in that, A power device (16) is installed at the top end of the desulfurization tank (1).

7. The combined heat and power flue gas large wet desulphurization device according to claim 6, characterized in that, The inner wall of the lower half of the desulfurization tank (1) is connected with an inclined assembly frame (17). The inner wall of the assembly frame (17) is connected with a filter screen for filtering desulfurizer. The power device (16) is communicated with the lower half of the desulfurization tank (1) through a communication pipe (18).

8. The combined heat and power flue gas large wet desulphurization device according to claim 7, characterized in that, The outer periphery of the desulfurization tank (1) is communicated with an air outlet pipe (19).

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