Anti-blocking device for calcium-based dry desulfurization powder spraying pipeline

Abstract

The utility model discloses calcium base dry method desulfurization powder spraying pipeline anti -blocking device belongs to flue gas desulfurization technical field, including pipeline body and two air pipes, the pipeline body side wall is respectively equipped with two connecting heads, two connecting heads are located two corner positions of pipeline body respectively, two air pipes are connected on two connecting heads respectively, the air pipe side wall is equipped with the fixed ring, the pipeline body side wall is fixed and is equipped with the center ring, the center ring side wall is fixedly arranged with the center plate, the center plate side wall is provided with the retaining mechanism for keeping the fixed ring position. The application is through setting up two vulcanization air pipes and the matched retaining mechanism on the pipeline body side wall, improves lime slaking flowability, prevents lime concretion, promotes unloading smooth, solves the problem that the digestion ware conveying bin pump unloading port is blocked, and unloading is not smooth.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas desulfurization technology, and in particular relates to an anti-clogging device for calcium-based dry desulfurization powder spraying pipelines. Background Technology

[0002] Calcium-based dry desulfurization involves injecting limestone powder into the flue or reaction tower through a powder injection pipe, where it reacts with SO2 in the flue gas to generate CaSO4. The powder injection system typically consists of an air classifier mill, a high-pressure blower, a desulfurizing agent delivery pipe, and nozzles. This system usually uses pneumatic conveying to evenly disperse the powder into the reaction area. Because calcium-based desulfurizers, i.e. limestone powder, are highly hygroscopic, if the storage environment is humid or if moisture in the flue gas seeps back into the pipeline, the powder particles will absorb moisture and eventually form clumps. The wet powder that has not yet clumped will also have its fluidity reduced sharply, making it easy to stick and deposit on the inner wall of the pipeline, elbows, valves and other parts, affecting the powder spraying operation.

[0003] To address this issue, we propose a calcium-based dry desulfurization powder injection pipeline anti-clogging device. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a calcium-based dry desulfurization powder spraying pipeline anti-clogging device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A calcium-based dry desulfurization powder spraying pipeline anti-clogging device includes a pipeline body and two air ducts. Two connectors are respectively installed on the side wall of the pipeline body, and the two connectors are respectively located at two corners of the pipeline body. The two air ducts are respectively connected to the two connectors. A fixing ring is sleeved on the side wall of the air duct. A central ring is fixedly installed on the side wall of the pipeline body. A central plate is fixedly installed on the side wall of the central ring. A retaining mechanism for maintaining the position of the fixing ring is provided on the side wall of the central plate.

[0006] By using the above technical solution, two sulfurized air ducts and a matching retaining mechanism are installed on the side wall of the pipeline body, which can improve the fluidity of quicklime, prevent quicklime from caking, promote smooth material discharge, and solve the problems of blockage at the discharge port of the digester conveying silo pump and poor material discharge.

[0007] Preferably, the two connectors are located on both sides of the pipe body, and the center plate is also located on both sides of the center ring.

[0008] With the above technical solution, the two connectors are located at two positions on the pipe body, while the center plate and center ring are located in the middle of the two connectors, thus facilitating the simultaneous support of two air ducts.

[0009] Preferably, the retaining mechanism includes a stop rod, two support rods, and two swing rods. The two swing rods are rotatably connected to the side wall of the center plate, and the other end of the swing rod is rotatably connected to the side wall of the fixed ring. One end of the support rod is rotatably connected to the middle position of the swing rod, and the other end of the support rod is fixedly connected to one end of the stop rod. The side wall of the center plate is provided with a slot, and the stop rod abuts against the inner wall of the slot. A baffle is movably provided on the side wall of the slot.

[0010] Through the above technical solution, the support rod and the abutment rod will form a resisting state with the inside of the slot, thereby supporting the air duct. Moreover, when the air duct is not needed, the swing rod and the support rod can be folded up for easy storage.

[0011] Preferably, the center plate has a fixing groove on its side wall, and a side panel is installed in the fixing groove. The side panel is fixed in the fixing groove by fixing screws. The side wall of the side panel is fixedly installed with the side wall of the baffle. The center plate has a through hole, and the baffle passes through the through hole and abuts against the side wall of the abutment rod.

[0012] Through the above technical solution, the support rod can be firmly fixed in the slot by setting the fixing screw and the baffle, thereby ensuring the support effect for the air duct. Moreover, when it is necessary to disassemble the air duct, the support effect of the retaining mechanism can be easily canceled by removing the fixing screw.

[0013] Preferably, the depth of the slot is the same as the diameter of the abutment, and the length of the baffle is greater than the diameter of the abutment.

[0014] With the above technical solution, since the abutment needs to be fixed in the slot, the depth of the slot must be at least the same as the diameter of the abutment. Moreover, the slot is not a complete circular slot; there is a vertical section at the top of the slot to facilitate the horizontal insertion of the baffle and its abutment against the side wall of the abutment.

[0015] In summary, the technical effects and advantages of this utility model are as follows: This application, by setting two sulfurized air ducts and a matching retaining mechanism on the side wall of the pipeline body, allows air to be blown into the pipeline body during the desulfurization powder spraying process. This disperses the quicklime in the pipeline body, improves the fluidity of the quicklime, prevents it from caking, promotes smooth material discharge, and solves the problem of blockage and poor material discharge at the discharge port of the digester conveying silo pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structural connection of the retaining mechanism in this utility model; Figure 3This is a schematic diagram of the structure between the side panel and the fixing groove in this utility model; Figure 4 for Figure 3 A magnified view of part A in the middle.

[0017] In the diagram: 1. Pipe body; 2. Air duct; 3. Connector; 4. Fixing ring; 5. Center ring; 6. Center plate; 7. Support rod; 8. Support rod; 9. Swing rod; 10. Slot; 11. Baffle; 12. Fixing groove; 13. Perforation; 14. Fixing screw; 15. Side panel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figure 1 - Figure 4 As shown, the anti-clogging device for the calcium-based dry desulfurization powder spraying pipeline includes a pipeline body 1 and two air ducts 2. Two connectors 3 are installed on the side wall of the pipeline body 1, located on both sides of the pipeline body 1 and at two corners of the pipeline body 1. The two air ducts 2 are connected to the two connectors 3. When slaked lime moves inside the pipeline body 1, the most likely place to accumulate is at the corner of the pipeline body 1. However, the connectors 3 are not located at the corners, but are located close to the corners, so there is no need to worry about slaked lime directly entering the connectors 3.

[0020] A fixing ring 4 is fitted on the side wall of the duct 2, and a central ring 5 is fixedly installed on the side wall of the duct body 1. A central plate 6 is fixedly installed on the side wall of the central ring 5, and the central plate 6 is also located on both sides of the central ring 5. Two connectors 3 are located at two positions on the duct body 1, and the central plate 6 and the central ring 5 are located in the middle of the two connectors 3, so as to facilitate the simultaneous support of two ducts 2.

[0021] The side wall of the center plate 6 is provided with a holding mechanism for maintaining the position of the fixed ring 4. The holding mechanism includes a stop rod 7, two support rods 8 and two swing rods 9. The two swing rods 9 are rotatably connected to the side wall of the center plate 6, and the other end of the swing rod 9 is rotatably connected to the side wall of the fixed ring 4. One end of the support rod 8 is rotatably connected to the middle position of the swing rod 9, and the other end of the support rod 8 is fixedly connected to one end of the stop rod 7. The side wall of the center plate 6 is provided with a slot 10. The stop rod 7 abuts against the inner wall of the slot 10. A baffle 11 is movably provided on the side wall of the slot 10. The support rod 8 and the stop rod 7 will form abutting state with the inside of the slot 10, thereby supporting the air duct 2. Moreover, when the air duct 2 is not needed, the swing rod 9 and the support rod 8 can be folded up for easy storage.

[0022] A fixing groove 12 is provided on the side wall of the center plate 6. A side panel 15 is installed in the fixing groove 12. The side panel 15 is fixed in the fixing groove 12 by fixing screws 14. The side wall of the side panel 15 is fixedly set with the side wall of the baffle 11. A through hole 13 is provided in the center plate 6. The baffle 11 passes through the through hole 13 and abuts against the side wall of the support rod 7. The depth of the slot 10 is the same as the diameter of the support rod 7. The length of the baffle 11 is greater than the diameter of the support rod 7. By setting the fixing screws 14 and the baffle 11, the support rod 7 can be firmly fixed in the slot 10, thereby ensuring the support effect for the air duct 2.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A calcium-based dry desulfurization powder spraying pipeline anti-clogging device, comprising a pipeline body (1) and two air ducts (2), characterized in that, Two connectors (3) are respectively installed on the side wall of the pipe body (1). The two connectors (3) are respectively located at the two corners of the pipe body (1). The two air ducts (2) are respectively connected to the two connectors (3). The side wall of the air duct (2) is fitted with a fixing ring (4). The side wall of the pipe body (1) is fixedly fitted with a central ring (5). The side wall of the central ring (5) is fixedly fitted with a central plate (6). The side wall of the central plate (6) is provided with a holding mechanism for maintaining the position of the fixing ring (4).

2. The anti-clogging device for calcium-based dry desulfurization powder spraying pipeline according to claim 1, characterized in that, The two connectors (3) are located on both sides of the pipe body (1), and the center plate (6) is also located on both sides of the center ring (5).

3. The anti-clogging device for calcium-based dry desulfurization powder spraying pipeline according to claim 2, characterized in that, The retaining mechanism includes a stop rod (7), two support rods (8) and two swing rods (9). The two swing rods (9) are rotatably connected to the side wall of the center plate (6) respectively. The other end of the swing rod (9) is rotatably connected to the side wall of the fixed ring (4). One end of the support rod (8) is rotatably connected to the middle position of the swing rod (9). The other end of the support rod (8) is fixedly connected to one end of the stop rod (7). The side wall of the center plate (6) is provided with a slot (10). The stop rod (7) abuts against the inner wall of the slot (10). A baffle (11) is movably provided on the side wall of the slot (10).

4. The anti-clogging device for calcium-based dry desulfurization powder spraying pipeline according to claim 3, characterized in that, The center plate (6) has a fixing groove (12) on its side wall. A side panel (15) is installed in the fixing groove (12). The side panel (15) is fixed in the fixing groove (12) by fixing screws (14). The side wall of the side panel (15) is fixedly set with the side wall of the baffle (11). The center plate (6) has a through hole (13). The baffle (11) passes through the through hole (13) and abuts against the side wall of the abutment rod (7).

5. The anti-clogging device for calcium-based dry desulfurization powder spraying pipeline according to claim 3, characterized in that, The depth of the slot (10) is the same as the diameter of the abutment (7), and the length of the baffle (11) is greater than the diameter of the abutment (7).

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