Secondary desulfurization material equipartition device for dust removal station

Abstract

The utility model discloses a material equipartition device for secondary desulfurization of a dust removal station, which comprises a rack, a spiral feeder is supported and fixed on the rack, a material mixing air pipe is arranged at the lower part of a discharge port of the spiral feeder, a fan is mounted on one side of the material mixing air pipe, an equipartition component is connected between the spiral feeder and the material mixing air pipe, and the equipartition component comprises a blanking chamber. Two inclined flow guide plates are arranged at a feeding port of the discharging chamber, a frame-shaped frame slidably connected with the discharging chamber is arranged on the lower portions of the flow guide plates, a sieve plate is fixedly connected into the frame-shaped frame, the frame-shaped frame extends towards the two ends to the outer side of the discharging chamber, limiting plates are fixedly connected to the two ends of the frame-shaped frame respectively, and extrusion springs are arranged between the corresponding limiting plates and connecting plates on the side portions of the discharging chamber. And a driving assembly capable of shaking the sieve plate left and right is arranged on one side corresponding to the limiting plate. By additionally arranging the material equipartition device, uniform falling of materials is ensured, a desulfurizing agent and conveyed gas are fully and uniformly mixed, the burden and the operation and maintenance cost of the bag-type dust collector are reduced, and the adverse effect on the environment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization, specifically to a material distribution device for secondary desulfurization in a dust removal station. Background Technology

[0002] In current industrial production, it is crucial to desulfurize flue gas to reduce sulfur dioxide (SO2) emissions;

[0003] Currently, common desulfurization processes involve feeding powdered desulfurizing agent from a desulfurizing agent silo to a mixing duct via a screw conveyor and a rotary feeder. After mixing with the gas supplied from a Roots blower, the mixture is continuously injected into the flue gas duct to react with SO2 in the flue gas. In this process, the thorough mixing and contact between the desulfurizing agent and the flue gas is a crucial step in ensuring the desulfurization effect.

[0004] However, in practical applications, because the rotary feeder discharges material intermittently, the desulfurizing agent cannot achieve sufficient and uniform mixing with the gas conveyed by the Roots blower. This uneven mixing directly leads to insufficient contact and reaction between the desulfurizing agent and SO2 in the flue gas, failing to achieve the expected desulfurization effect. This problem prevents the desulfurizing agent from achieving sufficient and uniform mixing with the gas conveyed by the Roots blower. When the incompletely reacted desulfurizing agent enters the desulfurization baghouse dust collector, although it can undergo deeper reaction, the uneven mixing in the early stages reduces the reaction efficiency, increasing the burden and maintenance costs of the baghouse dust collector. It also increases the difficulty and cost of subsequent treatment, reduces the stability and reliability of the entire desulfurization system, and may even lead to excessive SO2 content in the emitted flue gas, causing adverse environmental impacts. Summary of the Invention

[0005] To address the aforementioned problems, this utility model provides a secondary desulfurization material equalization device for dust removal stations.

[0006] This utility model is achieved through the following technical solution:

[0007] A secondary desulfurization material equalization device for a dust removal station includes a frame on which a screw feeder is supported and fixed. A mixing duct is provided below the discharge port of the screw feeder, and a fan is installed on one side of the mixing duct. A material equalization component is connected and fixed between the screw feeder and the mixing duct. The equalization component includes a discharge chamber. Two inclined guide plates are provided at the inlet of the discharge chamber. A frame is slidably connected to the discharge chamber at the lower part of the guide plates. A screen plate is connected and fixed inside the frame. The frame extends to both ends to the outside of the discharge chamber and limit plates are connected and fixed at both ends. A compression spring is provided between the limit plate and the connecting plate on the side of the discharge chamber. A drive component that can make the screen plate swing left and right is provided on one side of the limit plate.

[0008] Further optionally, the drive assembly includes a drive motor that is fixed to the frame via a bracket, and a cam is synchronously driven on the output shaft of the drive motor.

[0009] Alternatively, one side of the limiting plate is tightly fitted to the outer side wall of the discharge chamber, while the other side of the limiting plate is 30-50mm away from the outer side wall of the discharge chamber.

[0010] Alternatively, the cam may contact the sidewall of the limiting plate, which is located away from the discharge chamber.

[0011] Alternatively, the material unloading chamber may be provided with sliding grooves on both sides for the frame to slide.

[0012] Alternatively, leak-proof sealing gaskets are provided on the upper and lower sides of the chute and are fitted to the frame.

[0013] Alternatively, the lowest end of the guide plate may be attached to the screen plate.

[0014] Alternatively, the material inlet of the discharge chamber can be connected to the discharge outlet of the screw feeder, and the discharge outlet of the discharge chamber can be connected to the inlet of the mixing duct.

[0015] Compared with existing technologies, the beneficial effects of this utility model are: by adding a material distribution device, this utility model ensures that the material falls evenly, so that the desulfurizing agent and the conveying gas are fully and evenly mixed, thereby improving the desulfurization effect, reducing the burden and operation and maintenance costs of the bag filter, enhancing system stability, and reducing adverse environmental impacts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the material distribution component;

[0018] Figure 3 yes Figure 2 A diagram showing the view from below;

[0019] Figure 4 It is a flowchart of existing technology processes;

[0020] In the diagram: 1. Frame; 2. Screw feeder; 3. Mixing duct; 4. Drop chamber; 5. Guide plate; 6. Frame frame; 7. Screen plate; 8. Limiting plate; 9. Compression spring; 10. Support; 11. Drive motor; 12. Cam; 13. Slide groove; 14. Leak-proof sealing gasket; 15. Fan; 16. Connecting plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0022] like Figure 1 , 2As shown in Figure 3, a secondary desulfurization material equalization device for a dust removal station includes a frame 1, on which a screw feeder 2 is supported and fixed. A mixing duct 3 is provided below the discharge port of the screw feeder 2. A fan 15 is installed on one side of the mixing duct 3. A material equalization component is connected and fixed between the screw feeder 2 and the mixing duct 3. The equalization component includes a discharge chamber 4. Two inclined guide plates 5 are provided at the inlet of the discharge chamber 4. A frame 6 is slidably connected to the discharge chamber 4 at the lower part of the guide plates 5. A screen plate 7 is connected and fixed inside the frame 6. The frame 6 extends to both ends to the outside of the discharge chamber 4 and is connected and fixed at both ends with limit plates 8. A compression spring 9 is provided between the limit plate 8 and the connecting plate 16 on the side of the discharge chamber 4. A drive component that can make the screen plate 7 swing left and right is provided on one side of the limit plate 8.

[0023] like Figure 2 , 3 As shown, the drive assembly includes a drive motor 11 that is fixed to the frame 1 via a bracket 10, and a cam 12 is synchronously driven on the output shaft of the drive motor 11.

[0024] like Figure 2 , 3 As shown, one side limiting plate 8 is tightly fitted to the outer wall of the discharge chamber 4, while the other side limiting plate 8 is 30-50mm away from the outer wall of the discharge chamber 4.

[0025] like Figure 3 As shown, cam 12 contacts the side wall of limit plate 8, which is away from the material discharge chamber 4.

[0026] like Figure 2 As shown, the material discharge chamber 4 has sliding grooves 13 on both sides for the frame 6 to slide.

[0027] like Figure 2 As shown, leak-proof sealing gaskets 14 are provided on the upper and lower sides of the chute 13 and are fitted to the frame 6 to prevent material leakage when the frame 6 moves.

[0028] like Figure 2 As shown, the lowest end of the guide plate 5 is in contact with the sieve plate 7.

[0029] like Figure 1 As shown, the inlet of the discharge chamber 4 is connected to the outlet of the screw feeder 2, and the outlet of the discharge chamber 4 is connected to the inlet of the mixing duct 3.

[0030] The implementation principle of the secondary desulfurization material equalization device in a dust removal station according to an embodiment of this application is as follows:

[0031] When the material is evenly distributed during the secondary desulfurization of the dust removal station, the material will be intermittently scattered from the discharge port at the bottom of the screw feeder 2 into the discharge chamber 4 through the rotor in the screw feeder 2. When the material is scattered into the discharge chamber 4, the material will be concentrated towards the middle of the screen plate 7 by the guide plate 5. When the material reaches the screen plate 7, the drive motor 11 is started. The drive motor 11 will drive the cam 12 to rotate. When the cam 12 rotates, the protrusion will push the limiting plate 8 away from the outer wall of the discharge chamber 4 to move to the other side along the slide groove 13, so that the screen plate 7 will move accordingly. At the same time, the compression spring 9 will be compressed to generate a rebound force. When the cam 12 rotates to the non-protrusion part, the screen plate 7 will be reset by the rebound force generated by the compression spring 9.

[0032] At this time, under the high-speed rotation of cam 12, the screen plate 7 inside the frame 6 will slide repeatedly left and right in the material drop chamber 4, so that the material falls evenly from the screen holes on the screen plate 7 into the mixing duct 3. At the same time as falling into the mixing duct 3, the fan 15 is started. The fan 15 mixes the material falling into the mixing duct 3 with positive pressure air. The mixed material is accelerated and carried to the pipeline used to transport flue gas, where it comes into contact with SO2 in the flue gas to complete the reaction. At the same time, it enters the desulfurization bag filter with the flue gas. The unreacted desulfurizing agent undergoes a deep reaction with SO2 in the bag filter. After the desulfurization reaction, the flue gas is filtered by the dust collector to remove dust, and then pressurized by the induced draft fan and sent to the chimney for discharge, thus completing the flue gas desulfurization. The whole process ensures the uniformity of material falling, so that the desulfurizing agent and the transport gas are fully and evenly mixed, improving the desulfurization effect, reducing the burden and operation and maintenance costs of the bag filter, enhancing system stability, and reducing adverse environmental impact.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A secondary desulfurization material equalization device for a dust removal station, comprising a frame (1), on which a screw feeder (2) is fixedly supported, and a mixing duct (3) is provided at the lower part of the discharge port of the screw feeder (2), and a fan (15) is installed on one side of the mixing duct (3), characterized in that: A material distribution component is fixedly connected between the screw feeder (2) and the mixing air duct (3). The distribution component includes a discharge chamber (4). Two inclined guide plates (5) are provided at the inlet of the discharge chamber (4). A frame frame (6) is slidably connected to the discharge chamber (4) at the lower part of the guide plate (5). A screen plate (7) is fixedly connected inside the frame frame (6). The frame frame (6) extends to both ends to the outside of the discharge chamber (4) and is fixedly connected to the limit plates (8) at both ends. A compression spring (9) is provided between the limit plate (8) and the connecting plate (16) on the side of the discharge chamber (4). A drive component that can make the screen plate (7) swing left and right is provided on one side of the limit plate (8).

2. The secondary desulfurization material equal division device of a dust removal station according to claim 1, characterized in that: The drive assembly includes a drive motor (11) that is fixed to the frame (1) via a bracket (10), and a cam (12) is synchronously driven on the output shaft of the drive motor (11).

3. The secondary desulfurization material equal division device of a dust removal station according to claim 1, characterized in that: The limiting plate (8) on one side is tightly fitted to the outer wall of the discharge chamber (4), and the limiting plate (8) on the other side is 30-50mm away from the outer wall of the discharge chamber (4).

4. The secondary desulfurization material equal division device of a dust removal station according to claim 2, characterized in that: The cam (12) contacts the side wall of the limiting plate (8) which is away from the material discharge chamber (4).

5. The secondary desulfurization material equal division device of a dust removal station according to claim 1, characterized in that: The material discharge chamber (4) has sliding grooves (13) on both sides for sliding of the frame frame (6).

6. The device for uniform distribution of secondary desulfurization material of a dust removal station according to claim 5, characterized in that: The upper and lower sides of the slide (13) are respectively provided with anti-leakage sealing gaskets (14) and are attached to the frame (6).

7. The device according to claim 1, characterized in that: The lowest end of the guide plate (5) is in contact with the sieve plate (7).

8. The material equalization device for secondary desulfurization in a dust removal station according to claim 5, characterized in that: The material inlet of the material drop chamber (4) is connected to the outlet of the screw feeder (2), and the outlet of the material drop chamber (4) is connected to the inlet of the mixing air duct (3).

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