SCR (Selective Catalytic Reduction) denitration soot blower rake pipe with positioning and locking device

Abstract

The utility model relates to the technical field of SCR (Selective Catalytic Reduction) denitration soot blower rake pipes, and discloses an SCR denitration soot blower rake pipe with a positioning and locking device, which comprises a rake rod, a sealing gasket, a locking mechanism and a rake pipe, the sealing gasket is arranged between the rake rod and the rake pipe, the locking mechanism comprises a movable claw, a fixed block, a rotating shaft and a clamping buckle, one end of the movable claw is installed in the rotating shaft, the other end of the movable claw is installed on the upper end face of the rake rod, and the fixing block is installed on the side face of the rake pipe. According to the utility model, the groove on the upper end face of the rake pipe is utilized to quickly prepare to install the sealing gasket, then the movable claw in the locking mechanism is clamped into the clamping groove on the upper end face of the rake rod, and finally the clamping buckle is tightened, so that the quick reinstallation of the rake pipe can be completed, the replacement time of the rake pipe is greatly shortened, and the working intensity of workers working in the reactor is reduced. In addition, when the clamping buckle breaks down and is loosened, the rake pipe is hung on the rake rod through the movable claw and cannot fall off, and the catalyst below is protected against damage.

Description

Technical Field

[0001] The utility model relates to the technical field of SCR denitration soot blower rake pipes, and more specifically to an SCR denitration soot blower rake pipe with a positioning and locking device. Background Art

[0002] With the increasingly strict requirements for environmental protection emission indicators, SCR denitration has become a necessary means for cement plants to achieve ultra-low emissions of nitrogen oxides. The dust content in the flue gas at the kiln tail of cement plants is high. Most SCR denitration projects adopt a combined mode of acoustic soot blowers and rake soot blowers to ensure that there is no ash accumulation on the catalyst surface. However, during operation, the rake pipes of the rake soot blowers often encounter blockage or loosening, resulting in ash accumulation on the catalyst surface and affecting the denitration efficiency, and it is necessary to stop the kiln for treatment.

[0003] At present, most rake pipes adopt the form of flange bolt connection. The replacement process is cumbersome and time-consuming, resulting in a long kiln shutdown time and a great impact on continuous production. In addition, when the rake pipe needs to be urgently replaced due to a soot blower failure, due to the high temperature inside the reactor and a large amount of ash accumulation on the catalyst surface, the construction environment is harsh. The replacement construction of the rake pipe with a traditional structure has a high intensity and high risk. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an SCR denitration soot blower rake pipe with a positioning and locking device to solve the problems existing in the above-mentioned background art.

[0005] The utility model provides the following technical solution: an SCR denitration soot blower rake pipe with a positioning and locking device, including a rake rod, a sealing gasket, a locking mechanism, and a rake pipe. The sealing gasket is installed between the rake rod and the rake pipe. The locking mechanism includes a movable claw, a fixed block, a rotating shaft, and a clamping buckle. One end of the movable claw is installed in the rotating shaft, and the other end is installed on the upper end surface of the rake rod. The fixed block is installed on the side surface of the rake pipe. The rotating shaft is installed between the two fixed blocks. The upper part of the clamping buckle is installed in the rotating shaft, and the lower part is installed on the side surface of the rake pipe.

[0006] As a further solution of the utility model, a clamping groove is provided on the upper end surface of the rake rod. When the clamping buckle in the locking mechanism is not tightened, the movable claw falls into the clamping groove.

[0007] As a further solution of the utility model, a convex platform is provided on the lower end surface of the rake rod.

[0008] As a further solution of the utility model, a groove is provided on the upper end surface of the rake pipe, and the sealing gasket is installed in the groove.

[0009] As a further solution of the utility model, a sliding groove is provided on the fixed block, and the rotating shaft moves up and down in the sliding groove.

[0010] As a further solution of the present utility model, the clamping buckle is arranged at both ends of the rotating shaft and installed outside the fixed block.

[0011] As a further solution of the present utility model, two or more locking mechanisms can be arranged.

[0012] As a further solution of the present utility model, it further includes a hook-shaped buckle installed on the side of the rake rod. Technical effects and advantages of the present utility model: Use the groove on the upper end surface of the rake pipe to quickly prepare for installing the gasket, then snap the movable claw in the locking mechanism into the card slot on the upper end surface of the rake rod, and finally tighten the clamping buckle to complete the quick reinstallation of the rake pipe, greatly shortening the replacement time of the rake pipe and reducing the working intensity of workers operating inside the reactor. In addition, when the clamping buckle fails and loosens, the rake pipe is hung on the rake rod by the movable claw and will not fall off, protecting the catalyst below from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of Embodiment 1 of the present utility model.

[0014] Figure 2 It is the top view of Embodiment 1 of the present utility model.

[0015] Figure 3 It is the schematic diagram of the locking mechanism of Embodiment 1 of the present utility model.

[0016] Figure 4 It is the front view of Embodiment 2 of the present utility model.

[0017] Reference numerals are: 1, rake rod; 2, gasket; 3, locking mechanism; 31, movable claw; 32, fixed block; 33, rotating shaft; 34, clamping buckle; 4, rake pipe; 5, hook-shaped buckle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. In addition, the forms of each structure described in the following embodiments are merely examples, and the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0019] Embodiment 1

[0020] Refer to Figures 1 - 3, the present utility model provides an SCR denitration soot blower rake pipe with a positioning and locking device, which includes a rake rod 1, a sealing gasket 2, a locking mechanism 3 and a rake pipe 4. The sealing gasket 2 is installed between the rake rod 1 and the rake pipe 4. The locking mechanism 3 includes a movable claw 31, a fixed block 32, a rotating shaft 33 and a clamping buckle 34. One end of the movable claw 31 is installed in the rotating shaft 33, and the other end is installed on the upper end face of the rake rod 1. The fixed block 32 is installed on the side of the rake pipe 4. The rotating shaft 33 is installed between the two fixed blocks 32. The upper part of the clamping buckle 34 is installed in the rotating shaft 33, and the lower part is installed on the side of the rake pipe 4.

[0021] In the present utility model, there is a card slot on the upper end face of the rake rod 1. When the clamping buckle 34 in the locking mechanism 3 is not tightened, the movable claw 31 falls into the card slot. There is a boss on the lower end face of the rake rod 1, and there is a groove on the upper end face of the rake pipe 4. The sealing gasket 2 is installed in the groove. There is a sliding slot on the fixed block 32, and the rotating shaft 33 moves up and down in the sliding slot. The clamping buckle 34 is arranged at both ends of the rotating shaft 33 and is installed outside the fixed block 32. Two or more locking mechanisms 3 can be arranged. The present utility model utilizes the groove on the upper end face of the rake pipe 4 to quickly and preparatorily install the sealing gasket 2, then snaps the movable claw 31 in the locking mechanism 3 into the card slot on the upper end face of the rake rod 1, and finally tightens the clamping buckle 34, thus completing the quick reinstallation of the rake pipe 4, greatly shortening the replacement time of the rake pipe 4 and reducing the working intensity of workers operating inside the reactor. In addition, when the clamping buckle 34 fails and loosens, the rake pipe 4 is hung on the rake rod 1 through the movable claw 31 and will not fall off, protecting the catalyst below from damage.

[0022] The working principle of the present utility model: Utilize the groove on the upper end face of the rake pipe 4 to quickly and preparatorily install the sealing gasket 2, then snap the movable claw 31 in the locking mechanism 3 into the card slot on the upper end face of the rake rod 1, and finally tighten the clamping buckle 34, thus completing the quick reinstallation of the rake pipe 4, greatly shortening the replacement time of the rake pipe 4 and reducing the working intensity of workers operating inside the reactor. In addition, when the clamping buckle 34 fails and loosens, the rake pipe 4 is hung on the rake rod 1 through the movable claw 31 and will not fall off, protecting the catalyst below from damage

[0023] Embodiment 2

[0024] Refer to Figure 4 , an SCR denitration soot blower rake pipe with a positioning and locking device, further includes a hook-shaped buckle 5 installed on the side of the rake rod 1. The clamping buckle 34 is installed on the side of the rake pipe 4. Install the lock of the clamping buckle 34 in the hook-shaped buckle 5, and then tighten the clamping buckle 34 to complete the replacement of the rake pipe.

[0025] The following points should be finally noted: In the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0026] In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

Claims

1. A SCR denitration sootblower rake pipe with a positioning and locking device, comprising a rake rod (1), a sealing gasket (2), a locking mechanism (3) and a rake pipe (4), characterized in that: The sealing pad (2) is installed between the rake rod (1) and the rake tube (4); the locking mechanism (3) comprises a movable claw (31), a fixed block (32), a rotating shaft (33) and a clamping buckle (34); one end of the movable claw (31) is installed in the rotating shaft (33), and the other end is installed on the upper end surface of the rake rod (1); the fixed block (32) is installed on the side of the rake tube (4); the rotating shaft (33) is installed between the two fixed blocks (32); the upper part of the clamping buckle (34) is installed in the rotating shaft (33), and the lower part is installed on the side of the rake tube (4).

2. The SCR denitration sootblower rake pipe with a positioning and locking device according to claim 1, characterized in that: The upper end surface of the rake rod (1) is provided with a slot, and when the clamping buckle (34) in the locking mechanism (3) is not tightened, the movable claw (31) falls into the slot.

3. The SCR denitration sootblower rake pipe with a positioning and locking device according to claim 2, characterized in that: The lower end surface of the rake rod (1) is provided with a boss.

4. The SCR denitration sootblower rake pipe with a positioning and locking device according to claim 1, characterized in that: The upper end surface of the rake pipe (4) is provided with a groove, and the sealing gasket (2) is installed in the groove.

5. The SCR denitration sootblower rake pipe with a positioning and locking device according to claim 1, characterized in that: The fixed block (32) is provided with a sliding groove, and the rotating shaft (33) moves up and down in the sliding groove.

6. The SCR denitration sootblower rake pipe with a positioning and locking device according to claim 5, characterized in that: The clamping buckles (34) are arranged at both ends of the rotating shaft (33) and are installed outside the fixing block (32).

7. The SCR denitration sootblower rake pipe with a positioning and locking device according to claim 1, characterized in that: The locking mechanisms (3) may be arranged in two or more portions.

8. The SCR denitration sootblower rake pipe with a positioning and locking device according to claim 1, characterized in that: It also includes a hook-shaped buckle (5) installed on the side of the rake rod (1).

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