A desulfurization tower desulfurization lime slurry pipeline dredging device
By connecting the clean water pipeline to the lime mortar pipeline for flushing and using a spare pipeline when blocked, the problem of blockage of the lime mortar pipeline is solved, the continuous cleaning of the pipeline and the stable transportation of lime mortar are achieved, and the effectiveness of flue gas treatment is ensured.
Patent Information
- Application Number
- CN202420546308.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The lime mortar conveying pipeline is prone to blockage during long-term operation, resulting in the inability to replenish fresh slurry in the absorption tower and the sulfur dioxide in the flue gas cannot be effectively absorbed, causing environmental pollution.
A desulfurization tower desulfurization lime mortar pipeline dredging device is designed. By connecting the clean water pipeline to the slurry pipeline, flushing the inside of the pipeline with clean water, cleaning the scale, and disassemblying the pipeline by dismantling the flange when blocked, and using a spare pipeline to maintain the transportation of lime mortar.
The internal cleaning of the slurry pipeline is achieved, blocked, and the continuous transportation of lime slurry and the effective treatment of flue gas are ensured, reducing labor intensity and safety risks.
Smart Images
Figure CN222695527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline dredging, in particular to a desulfurization tower desulfurization lime slurry pipeline dredging device. Background Art
[0002] The traditional limestone / quicklime flue gas desulfurization process uses lime slurry as a desulfurizer, which is injected into the desulfurization absorption tower through a lime slurry pump to absorb sulfur dioxide in the flue gas, thereby achieving the purpose of desulfurization. During the installation process, one end of the slurry pipeline is connected to the lime slurry pump and the other end is directly connected to the absorption tower. During the operation of the desulfurization system, as sulfur dioxide is continuously absorbed by the lime slurry, the generated calcium sulfite and calcium sulfate crystals are very easy to scale on the inner wall of the absorption tower due to their low solubility, resulting in blockage at the outlet of the slurry pipeline; at the same time, during the transportation process, the lime slurry will gradually solidify to form limestone blockages, which adhere to the inner wall of the slurry pipeline. The blocked pipeline cannot transport lime slurry in time, and the fresh slurry in the absorption tower cannot be replenished. The sulfur dioxide in the flue gas cannot be effectively absorbed, which is easy to cause environmental pollution after discharge; the blocked pipeline needs to be cut during the dredging process, which is labor-intensive and has high safety risks. Summary of the invention
[0003] The technical problem to be solved by the utility model is that the lime slurry conveying pipeline may be blocked during long-term operation.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a desulfurization tower desulfurization lime slurry pipeline dredging device, including a slurry pipeline and a desulfurization absorption tower and a lime slurry tank connected at both ends of the slurry pipeline. The slurry pipeline is L-shaped, and the top is a horizontal section and the bottom is a vertical section. The corner of the slurry pipeline is connected to the clean water pipeline through a three-way valve, and the two sections of the slurry pipeline are connected to the three-way valve through a flange.
[0005] Preferably, the top end of the slurry pipeline is connected to the delivery pipeline via an inner flange, and the fixed end of the delivery pipeline is located at the inner top of the desulfurization absorption tower.
[0006] Preferably, a casing is fixedly provided horizontally on the outer wall of the top of the desulfurization absorption tower, the conveying pipeline is located in the casing, and the movable end of the casing is provided with a first flange and fixedly connected to a second flange through the first flange, the second flange is sleeved on the slurry pipeline, and the inner flange is located between the first flange and the second flange.
[0007] Preferably, a pneumatic valve is installed on the clean water pipeline.
[0008] Preferably, a spare pipeline is connected between both ends of the slurry pipeline, and the spare pipeline is connected to the slurry pipeline at a joint through a flange.
[0009] The utility model provides a desulfurization tower desulfurization lime slurry pipeline dredging device, by connecting a clean water pipeline to the slurry pipeline, the inside of the slurry pipeline is flushed with clean water to clean the scale inside the slurry pipeline, thereby realizing the cleaning of the inside of the slurry pipeline; and when the slurry pipeline is blocked, the flange can be disassembled to realize the disassembly of the slurry pipeline, so that the transportation of lime slurry is maintained by a spare pipeline, and the treatment of flue gas is maintained. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0011] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.
[0012] In the figure: 1. first flange; 2. casing; 3. desulfurization absorption tower; 4. transmission pipeline; 5. inner flange; 6. second flange; 7. slurry pipeline; 8. spare pipeline; 9. three-way valve; 10. pneumatic valve; 11. clean water pipeline; 12. lime slurry tank. DETAILED DESCRIPTION
[0013] like Figure 1 The utility model provides a desulfurization tower desulfurization lime slurry pipeline dredging device, comprising a slurry pipeline 7 and a desulfurization absorption tower 3 and a lime slurry tank 12 connected at both ends of the slurry pipeline 7, the slurry pipeline 7 is L-shaped, and the top is a horizontal section, the bottom is a vertical section, the corner of the slurry pipeline 7 is connected to the clean water pipeline 11 through a three-way valve 9, and the two sections of the slurry pipeline 7 and the three-way valve 9 are connected by flanges.
[0014] The lime slurry in the lime slurry box 12 is pumped into the desulfurization absorption tower 3 through the slurry pipeline 7. The lime slurry enters the desulfurization absorption tower 3 and removes sulfur dioxide in the flue gas. During operation, the clean water pipeline 11 is opened regularly, and the clean water output by the clean water pipeline 11 flows through the slurry pipeline 7 to clean the scale on the inner wall of the slurry pipeline 7, thereby realizing regular cleaning of the slurry pipeline 7. When the slurry pipeline 7 is blocked, the slurry pipeline 7 is disassembled by connecting the flanges at both ends of the slurry pipeline 7 and the connection between the slurry pipeline 7 and the three-way valve 9, and finally the disassembled slurry pipeline 7 is cleaned. In the process of disassembling and cleaning the slurry pipeline 7, the supply of lime slurry to the desulfurization absorption tower 3 is maintained through the spare pipeline 8.
[0015] like Figure 1 As shown, it is convenient to dismantle the horizontal section of the slurry pipeline 7. The top of the slurry pipeline 7 is connected to the delivery pipeline 4 through the inner flange 5, and the fixed end of the delivery pipeline 4 is located at the inner top of the desulfurization absorption tower 3.
[0016] like Figure 1As shown. The outer wall of the top of the desulfurization absorption tower 3 is fixedly provided with a sleeve 2 horizontally, the delivery pipeline 4 is located in the sleeve 2, and the movable end of the sleeve 2 is provided with a first flange 1 and fixedly connected with a second flange 6 through the first flange 1, the second flange 6 is sleeved on the slurry pipeline 7, and the inner flange 5 is located between the first flange 1 and the second flange 6. When cleaning the delivery pipeline 4, the delivery pipeline 4 can be removed from the desulfurization absorption tower 3 by opening the inner flange 5, and the delivery pipeline 4 can be removed after removal, and the delivery of lime slurry is maintained through the sleeve 2.
[0017] like Figure 1 As shown, in order to facilitate the staff to regularly open and close the clean water pipeline 11, the slurry pipeline 7 is cleaned. A pneumatic valve 10 is installed on the clean water pipeline 11.
[0018] like Figure 1 As shown. A spare pipeline 8 is connected between the two ends of the slurry pipeline 7, and the spare pipeline 8 is connected to the slurry pipeline 7 at the joint by a flange. When the slurry pipeline 7 is dismantled and cleaned, the flow direction of the lime slurry is controlled by adjusting the three-way valve, and the lime slurry is transported by the spare pipeline 8. When the clean water pipeline 11 flushes the slurry pipeline 7, the inside of the spare pipeline 8 can also be flushed by adjusting the flow direction of the three-way valve at the joint of the slurry pipeline 7 and the spare pipeline 8.
Claims
1. A desulfurization tower desulfurization lime slurry pipeline dredging device, characterized in that: The invention comprises a slurry pipeline (7) and a desulfurization absorption tower (3) and a lime slurry tank (12) connected to both ends of the slurry pipeline (7). The slurry pipeline (7) is L-shaped, with a horizontal section at the top and a vertical section at the bottom. The corner of the slurry pipeline (7) is connected to a clean water pipeline (11) via a three-way valve (9). The two sections of the slurry pipeline (7) and the three-way valve (9) are connected via flanges.
2. A desulfurization tower desulfurization lime slurry pipeline dredging device as claimed in claim 1, characterized in that: The top end of the slurry pipeline (7) is connected to the delivery pipeline (4) via an inner flange (5), and the fixed end of the delivery pipeline (4) is located at the inner top of the desulfurization absorption tower (3).
3. A desulfurization tower desulfurization lime slurry pipeline dredging device as claimed in claim 2, characterized in that: A casing (2) is fixedly arranged horizontally on the outer wall of the top of the desulfurization absorption tower (3), the conveying pipeline (4) is located in the casing (2), and a first flange (1) is arranged on the movable end of the casing (2) and a second flange (6) is fixedly connected to the first flange (1), the second flange (6) is sleeved on the slurry pipeline (7), and the inner flange (5) is located between the first flange (1) and the second flange (6).
4. A desulfurization tower desulfurization lime slurry pipeline dredging device as claimed in claim 1, characterized in that: A pneumatic valve (10) is installed on the clean water pipeline (11).
5. A desulfurization tower desulfurization lime slurry pipeline dredging device as claimed in claim 1, characterized in that: A spare pipeline (8) is connected between the two ends of the slurry pipeline (7), and the spare pipeline (8) is connected to the slurry pipeline (7) at a joint via a flange.