A circulating fluidized bed boiler ash cooler

Abstract

This utility model discloses a circulating fluidized bed boiler slag cooler for preventing slag spraying, including a slag cooler body, a rotating fixing mechanism fixed at the bottom left end of the slag cooler body, an angle adjustment mechanism installed at the bottom right end of the slag cooler body, and an anti-slag spraying mechanism with the same structure on the front and rear sides of the slag cooler body. The top right end of the slag cooler body is connected to the bottom of the feed hopper, and the bottom left end of the slag cooler body is connected to the top of the discharge pipe. The hydraulic rod extension end adjusts the position of the connecting rod inside the arc groove by controlling the lifting and lowering of the lifting frame, so as to realize the automatic adjustment of the overall angle of the slag cooler body. The overall angle of the slag cooler body can be adjusted to optimize the flow path of cooling water and slag, and reduce the safety risks caused by local overheating or excessive pressure.

Description

Technical Field

[0001] This utility model relates to the field of circulating fluidized bed boiler technology, and in particular to a slag cooler for circulating fluidized bed boilers that prevents slag spraying. Background Technology

[0002] The drum slag cooler is widely used in the slag removal system of circulating fluidized bed boilers. The internal structure of the drum slag cooler mainly consists of an outer cylinder with a transmission device welded to it and an inner cylinder with fixed spiral guide blades welded to it. The inner cylinder comes in various models, including multi-tube and sleeve types. Slag lifting plates are welded between the fixed spiral guide blades inside the inner cylinder. When the slag cooler is driven to rotate slowly by the transmission device, the high-temperature slag is guided forward by the spiral blades in the inner cylinder of the sleeve. At the same time, during rotation, the slag lifting plates lift the slag upwards, and after reaching a certain height, it is thrown downwards.

[0003] Existing circulating fluidized bed boiler drum slag coolers on the market cannot be adjusted in angle after installation, which cannot optimize the flow path of cooling water and slag, increasing the safety risks caused by local overheating or excessive pressure. Therefore, a circulating fluidized bed boiler slag cooler with anti-slag spray is proposed to address the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A circulating fluidized bed boiler slag cooler for preventing slag spray includes a slag cooler body, a rotating fixing mechanism fixed to the bottom left end of the slag cooler body, an angle adjustment mechanism installed at the bottom right end of the slag cooler body, and an anti-slag spray mechanism with the same structure on the front and rear sides of the slag cooler body. The top right end of the slag cooler body is connected to the bottom of the feed hopper, and the bottom left end of the slag cooler body is connected to the top of the discharge pipe. The angle adjustment mechanism includes a right fixing block, the left side of which is welded to the right side of the slag cooler body. A connecting rod is installed inside the right fixing block, and the front and rear ends of the connecting rod are connected to the inside of an arc-shaped groove. The arc-shaped groove is located inside the front and rear side walls of the base frame. The bottom of the base frame is fixedly connected to the top of the base plate. The top ends of the front and rear ends of the base plate are vertically connected to the bottom of the hydraulic rod. The telescopic end of the hydraulic rod is fixedly connected to the bottom of the lifting frame. The inner side wall of the lifting frame is fitted to the outer side of the front and rear ends of the connecting rod.

[0005] Preferably, the left-side cross-section of the base frame has a concave structure.

[0006] Preferably, the rotating fixing mechanism includes an upper fixing frame fixed to the bottom left end of the slag cooler body, a rotating rod installed inside the upper fixing frame, the front and rear ends of the rotating rod being connected to fixing holes in the front and rear walls of the outer frame, and the bottom of the outer frame being vertically connected to the top of the base.

[0007] Preferably, the anti-slag-spraying mechanism includes connecting plates fixed to the front and rear sides of the bottom end of the slag cooler body. The bottom of the connecting plates is fixedly connected to one end of the slag-blocking roll. One end of the slag-blocking roll is equipped with a fastening strip. A magnet is provided inside the top of the fastening strip. The rear side of the magnet is attached to the front side of the iron plate. The rear end of the iron plate is fixed to the front and rear sides of the bottom end of the slag cooler body.

[0008] Compared with the prior art, the beneficial effects of this utility model are: (1) The hydraulic rod telescopic end adjusts the position of the connecting rod inside the arc groove by controlling the lifting and lowering of the lifting frame, so as to realize the automatic adjustment of the overall angle of the slag cooler body. The overall angle of the slag cooler body can be adjusted, optimizing the flow path of cooling water and slag, and reducing the safety risks caused by local overheating or excessive pressure.

[0009] (2) When the fastening strip is attracted to the iron plate by the magnet, the slag-blocking roll is in a tightened state. When the magnet of the fastening strip is released from the iron plate, the slag-blocking roll will be released and unfolded downwards. The unfolded slag-blocking roll can block the slag from being discharged from the discharge pipe and dispersed to both sides. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the 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 based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Schematic diagram of the enlarged structure of A in the middle; Figure 3 This is a schematic diagram of the anti-spraying slag mechanism of this utility model.

[0012] The following are the annotations in the figure: 1. Cold slag body, 11. Feed hopper, 12. Discharge pipe, 21. Right fixed block, 22. Connecting rod, 23. Base frame, 24. Arc groove, 25. Base plate, 26. Hydraulic rod, 27. Lifting frame, 31. Upper fixed frame, 32. Rotating rod, 33. Outer frame, 34. Base, 4. Anti-spraying slag mechanism, 41. Iron plate, 42. Connecting plate, 43. Slag-blocking roll, 44. Fastening strip, 45. Magnet. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] Please see Figure 1-3 The present invention provides an embodiment of a circulating fluidized bed boiler slag cooler for preventing slag spraying, comprising a slag cooler body 1, a rotating fixing mechanism fixed to the bottom left end of the slag cooler body 1, an angle adjusting mechanism installed at the bottom right end of the slag cooler body 1, and an anti-slag spraying mechanism 4 with the same structure set on the front and rear sides of the slag cooler body 1. The top right end of the slag cooler body 1 is connected to the bottom of the feed hopper 11, and the bottom left end of the slag cooler body 1 is connected to the top of the discharge pipe 12. The slag enters the slag cooler body 1 through the feed hopper 11 for cooling and is discharged through the discharge pipe 12.

[0016] The angle adjustment mechanism includes a right fixed block 21, the left side of which is welded to the right side of the slag cooler body 1. A connecting rod 22 is installed inside the right fixed block 21, with both ends of the connecting rod 22 connected to the interior of an arc-shaped groove 24. The arc-shaped groove 24 is located inside the front and rear side walls of the base frame 23. The bottom of the base frame 23 is fixedly connected to the top of the base plate 25. The top ends of the base plate 25 are vertically connected to the bottom of a hydraulic rod 26. The telescopic ends of the hydraulic rod 26 are fixedly connected to the bottom of a lifting frame 27. The inner side wall of the lifting frame 27 is fitted to the outer sides of the front and rear ends of the connecting rod 22. The left-view cross-section of the base frame 23 has a concave structure, facilitating the rotation of the slag cooler body 1 within it. The mechanism includes an upper fixed frame 31 fixed to the bottom left end of the slag cooler body 1. The upper fixed frame 31 is equipped with a rotating rod 32. The front and rear ends of the rotating rod 32 are connected to the fixing holes on the front and rear walls of the outer frame 33. The bottom of the outer frame 33 is vertically connected to the top of the base 34. The left end of the slag cooler body 1 rotates around the outer frame 33 via the rotating rod 32. The right end of the slag cooler body 1 can move along the arc of the arc groove 24 via the connecting rod 22, thereby adjusting the overall angle of the slag cooler body 1. The extension end of the hydraulic rod 26 adjusts the position of the connecting rod 22 inside the arc groove 24 by controlling the lifting and lowering of the lifting frame 27, so as to realize the automatic adjustment of the overall angle of the slag cooler body 1.

[0017] The anti-slag-blowing mechanism 4 includes connecting plates 42 fixed to the front and rear sides of the bottom end of the slag cooler body 1. The bottom of the connecting plates 42 is fixedly connected to one end of the slag-blocking roll 43. The top of the rear end of the slag-blocking roll 43 is fixed to the connecting plates 42. One end of the slag-blocking roll 43 is equipped with a fastening strip 44. A magnet 45 is provided inside the top of the fastening strip 44. The rear side of the magnet 45 is attached to the front side of the iron plate 41. The rear end of the iron plate 41 is fixed to the front and rear sides of the bottom end of the slag cooler body 1. When the fastening strip 44 is attracted to the iron plate 41 by the magnet 45, the slag-blocking roll 43 is in a tightened state. When the magnet 45 of the fastening strip 44 is released from the iron plate 41, the slag-blocking roll 43 will be released and unfolded downwards. The unfolded slag-blocking roll 43 can block the slag from being discharged from the discharge pipe 12 and dispersed to both sides.

[0018] During use, the extension end of the hydraulic rod 26 adjusts the position of the connecting rod 22 inside the arc groove 24 by controlling the lifting and lowering of the lifting frame 27, thereby achieving automatic adjustment of the overall angle of the slag cooler body 1. When the fastening strip 44 is attracted to the iron plate 41 by the magnet 45, the slag-blocking roll 43 is in a tightened state. When the magnet 45 of the fastening strip 44 is released from the iron plate 41, the slag-blocking roll 43 will be released and unfolded downwards. The unfolded slag-blocking roll 43 can block the slag from being discharged from the discharge pipe 12 and disperse it to both sides. The overall angle of the slag cooler body 1 can be adjusted to optimize the flow path of cooling water and slag and reduce the safety risks caused by local overheating or excessive pressure.

[0019] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ash-erosion-proof circulating fluidized bed boiler slag cooler, characterized in that: It includes a slag cooler body (1), a rotating fixing mechanism fixed to the bottom left end of the slag cooler body (1), an angle adjustment mechanism installed at the bottom right end of the slag cooler body (1), and an anti-spraying slag mechanism (4) with the same structure set on the front and rear sides of the slag cooler body (1). The top right end of the slag cooler body (1) is connected to the bottom of the feed hopper (11), and the bottom left end of the slag cooler body (1) is connected to the top of the discharge pipe (12). The angle adjustment mechanism includes a right fixed block (21), the left side of which is welded to the right side of the slag cooler body (1), and a connecting rod (22) is installed inside the right fixed block (21). The front and rear ends of the connecting rod (22) are connected to the inside of the arc groove (24). The arc groove (24) is set inside the front and rear side walls of the base frame (23). The bottom of the base frame (23) is fixedly connected to the top of the base plate (25). The top of the front and rear ends of the base plate (25) is vertically connected to the bottom of the hydraulic rod (26). The telescopic end of the hydraulic rod (26) is fixedly connected to the bottom of the lifting frame (27). The inner side wall of the lifting frame (27) is fitted to the outer side of the front and rear ends of the connecting rod (22).

2. A loop seived bed boiler ash cooler with an anti-slagging according to claim 1, characterized in that: The left-side cross-section of the base frame (23) is a concave structure.

3. A loop sealer for a fluidized bed combustor according to claim 1, wherein: The rotating fixing mechanism includes an upper fixing frame (31) fixed at the bottom left end of the slag cooler body (1). The upper fixing frame (31) is equipped with a rotating rod (32). The front and rear ends of the rotating rod (32) are connected to the fixing holes on the front and rear walls of the outer frame (33). The bottom of the outer frame (33) is vertically connected to the top of the base (34).

4. A loop sealer for a fluidized bed combustor according to claim 1, wherein: The anti-slag-spraying mechanism (4) includes connecting plates (42) fixed on the front and rear sides of the bottom end of the slag cooler body (1). The bottom of the connecting plate (42) is fixedly connected to one end of the slag-blocking roll (43). One end of the slag-blocking roll (43) is equipped with a fastening strip (44). The top of the fastening strip (44) is provided with a magnet (45). The rear side of the magnet (45) is attached to the front side of the iron plate (41). The rear end of the iron plate (41) is fixed on the front and rear sides of the bottom end of the slag cooler body (1).

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