Deslagging device based on biomass circulating fluidized bed boiler

Abstract

The utility model discloses a deslagging device based on a biomass circulating fluidized bed boiler, and relates to the technical field of fluidized bed boilers. The slag discharging device comprises a slag discharging pipe, a smashing mechanism used in cooperation with the slag discharging pipe is arranged at the bottom end of the slag discharging pipe, and a slag guiding mechanism used in cooperation with the smashing mechanism is arranged at the bottom end of the smashing mechanism. The smashing mechanism comprises an upper connecting cylinder and a lower connecting cylinder, the upper connecting cylinder is fixedly connected with the slag discharging pipe, a motor is fixedly installed at the top end of the upper connecting cylinder, and a support is fixedly inserted into the top end of the upper connecting cylinder; through the arrangement and use of the crushing mechanism, a main gear can be driven to rotate during deslagging operation based on the biomass circulating fluidized bed boiler, so that an auxiliary gear can be driven to rotate, a rotating shaft can be driven to rotate, and a crushing cutter can be driven to rotate; and waste residues discharged based on the biomass circulating fluidized bed boiler can be effectively crushed, so that sufficient and convenient discharging of the waste residues is guaranteed, and the phenomenon of pipeline blockage caused by overlarge size of the waste residues is avoided.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed boiler technology, specifically to a slag discharge device for a biomass circulating fluidized bed boiler. Background Technology

[0002] Biomass circulating fluidized bed boilers, or CFB boilers for short, are a type of renewable energy source with abundant resources. Biomass is the fourth largest energy source in the world, after coal, oil, and natural gas. As a result, biomass circulating fluidized bed boilers are receiving increasing attention and application.

[0003] However, existing slag discharge devices for biomass circulating fluidized bed boilers are not convenient for effectively crushing the discharged slag during use, which can easily lead to excessively large slag sizes causing pipe blockage. Furthermore, they are not convenient for adjusting the slag discharge direction, resulting in low practicality.

[0004] To address the aforementioned problems, this application proposes a slag discharge device for a biomass circulating fluidized bed boiler. Utility Model Content

[0005] In order to solve the problems of existing ash discharge devices for biomass circulating fluidized bed boilers, which are inconvenient to effectively crush the discharged waste ash and are inconvenient to adjust the ash discharge direction, the purpose of this utility model is to provide an ash discharge device for biomass circulating fluidized bed boilers.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: a slag discharge device for a biomass circulating fluidized bed boiler, including a slag discharge pipe, a crushing mechanism for use at the bottom end of the slag discharge pipe, and a slag guiding mechanism for use at the bottom end of the crushing mechanism.

[0007] The crushing mechanism includes an upper cylinder and a lower cylinder. The upper cylinder is fixedly connected to the slag discharge pipe, and a motor is fixedly installed at the top of the upper cylinder. A bracket is fixedly inserted into the top of the upper cylinder, and the motor is fixedly inserted into the bracket. Symmetrically distributed through holes are opened through the upper cylinder, and the bracket is fixedly inserted into the through holes. A main gear is fixedly sleeved at the end of the motor output. A rotating hole is opened through the middle of the top of the upper cylinder, and a rotating shaft is rotatably inserted into the rotating hole. A secondary gear is fixedly sleeved at the top of the rotating shaft, and the secondary gear meshes with the main gear. A crushing blade for use is fixedly sleeved at the bottom of the rotating shaft. The lower cylinder is detachably connected to the upper cylinder, and a connecting pipe for use is connected to the bottom of the lower cylinder. An array of screws is fixedly installed at the top of the lower cylinder, and the screws can move through the upper cylinder and have nuts threaded onto their outer sides. An array of through holes is opened through the lower end of the upper cylinder, and the screws can move through the through holes. The lower end of the lower cylinder has an inclined structure for use with the connecting pipe.

[0008] Preferably, the slag guiding mechanism includes a collar, which is rotatably sleeved on the outside of the bottom end of the connecting pipe, and an L-shaped slag guiding pipe is integrally formed at the bottom end of the collar. An insert rod is slidably inserted into the collar, and a fixed ring is fixedly sleeved on the top end of the insert rod. A push block for cooperation is integrally formed on the fixed ring. A sliding hole is opened through the collar, and the insert rod is slidably inserted into the sliding hole. A spring is fixedly installed at the bottom end of the fixed ring, and the end of the spring is fixedly connected to the collar. An array of insertion holes is opened at the bottom end of the connecting pipe, and the insert rod can be slidably inserted into the insertion holes.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. The crushing mechanism can drive the main gear to rotate during the ash discharge operation of the biomass circulating fluidized bed boiler, which in turn drives the auxiliary gear to rotate, which in turn drives the rotating shaft to rotate, which in turn drives the crushing blades to rotate. This effectively crushes the waste slag discharged from the biomass circulating fluidized bed boiler, ensuring that the waste slag is discharged fully and conveniently, and avoiding the phenomenon of pipe blockage caused by excessively large waste slag size.

[0011] 2. The slag guiding mechanism facilitates the upward movement and reset of the insertion rod, thereby facilitating the insertion and separation of the insertion rod and the insertion hole, as well as the rotation of the L-shaped slag guiding pipe. This, in turn, facilitates the angle adjustment of the L-shaped slag guiding pipe and allows for convenient adjustment of the slag discharge direction, making it highly practical. Attached Figure Description

[0012] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the crushing mechanism connection in this utility model.

[0015] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0016] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0017] Figure 5 This utility model Figure 2Enlarged schematic diagram of the structure at point C.

[0018] In the diagram: 1. Slag discharge pipe; 2. Crushing mechanism; 21. Upper connecting cylinder; 22. Lower connecting cylinder; 23. Motor; 24. Main gear; 25. Rotary hole; 26. Rotating shaft; 27. Secondary gear; 28. Crushing blade; 29. ​​Connecting pipe; 210. Insertion hole; 211. Screw; 212. Nut; 213. Through hole; 214. Support; 215. Through hole; 3. Slag guiding mechanism; 31. Collar; 32. L-shaped slag guiding pipe; 33. Insert rod; 34. Fixed ring; 35. Spring; 36. Sliding hole; 37. Push block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figures 1-5 As shown, this utility model provides a slag discharge device for a biomass circulating fluidized bed boiler, including a slag discharge pipe 1. The slag discharge pipe 1 is connected to the biomass circulating fluidized bed boiler and is used for slag discharge operations of the biomass circulating fluidized bed boiler. This is the prior art and will not be described in detail here. The bottom end of the slag discharge pipe 1 is provided with a crushing mechanism 2 for use, and the bottom end of the crushing mechanism 2 is provided with a slag guiding mechanism 3 for use.

[0021] The crushing mechanism 2 includes an upper receiving cylinder 21 and a lower receiving cylinder 22. The upper receiving cylinder 21 is fixedly connected to the slag discharge pipe 1, and a motor 23 is fixedly installed at the top of the upper receiving cylinder 21. A bracket 214 is fixedly inserted into the top of the upper receiving cylinder 21, and the motor 23 is fixedly inserted into the bracket 214. Symmetrically distributed through holes 215 are opened through the upper receiving cylinder 21, and the bracket 214 is fixedly inserted into the through holes 215. The cooperation between the through holes 215 and the bracket 214 ensures the stable installation of the motor 23. A main gear 24 is fixedly sleeved at the end of the output end of the motor 23. A rotating hole 25 is opened through the middle of the top of the upper receiving cylinder 21, and a rotating shaft 26 is rotatably inserted into the rotating hole 25. A secondary gear 27 is fixedly sleeved at the top of the rotating shaft 26, and the secondary gear 27 meshes with the main gear 24. A secondary gear 27 is fixedly sleeved at the bottom of the rotating shaft 26. The device includes a crushing blade 28 for use with the device. The lower connecting cylinder 22 and the upper connecting cylinder 21 are detachably connected. The bottom end of the lower connecting cylinder 22 is connected to a connecting pipe 29 for use with the device. The top end of the lower connecting cylinder 22 is fixedly installed with an array of screws 211. The screws 211 can move through the upper connecting cylinder 21 and are threaded with nuts 212 on their outer side. The lower end of the upper connecting cylinder 21 has an array of through holes 213. The screws 211 can move through the through holes 213. The use of the through holes 213, screws 211 and nuts 212 facilitates the disassembly and assembly of the upper connecting cylinder 21 and the lower connecting cylinder 22, thereby facilitating the maintenance and replacement of the crushing blade 28. The lower end of the lower connecting cylinder 22 has an inclined structure for use with the connecting pipe 29, which facilitates the full introduction of the crushed waste into the connecting pipe 29.

[0022] By adopting the above technical solution, during use, ash removal operations based on biomass circulating fluidized bed boilers can be carried out. During the ash removal operation, the motor 23 is started, which drives the main gear 24 to rotate, which in turn drives the secondary gear 27 to rotate, which in turn drives the rotating shaft 26 to rotate, which in turn drives the crushing blade 28 to rotate. This effectively crushes the waste ash discharged from the biomass circulating fluidized bed boiler, thus ensuring the full and convenient discharge of the waste ash and avoiding the phenomenon of pipe blockage caused by excessively large waste ash size. Subsequently, the crushed waste ash will be fully introduced into the connecting pipe 29 through the lower receiving cylinder 22 and then into the L-shaped ash guide pipe 32 through the connecting pipe 29. Finally, the crushed waste ash will be discharged from the L-shaped ash guide pipe 32 at a specified angle.

[0023] The slag guiding mechanism 3 includes a collar 31, which is rotatably sleeved on the outer side of the bottom end of the connecting pipe 29. An L-shaped slag guiding pipe 32 is integrally formed at the bottom end of the collar 31. A rod 33 is slidably inserted into the collar 31, and a fixed ring 34 is fixedly sleeved on the top end of the rod 33. A push block 37 is integrally formed on the fixed ring 34 for easy movement. A sliding hole 36 is formed through the collar 31, and the rod 33... The connecting tube 29 is slidably inserted into the sliding hole 36. A spring 35 is fixedly installed at the bottom end of the fixed ring 34, and the end of the spring 35 is fixedly connected to the collar 31. The bottom end of the connecting tube 29 is provided with an array of insertion holes 210, and the insertion rod 33 can be slidably inserted into the insertion hole 210. The collar 31 is rotated and sleeved on the outside of the corresponding part of the insertion hole 210 at the bottom end of the connecting tube 29. Therefore, the collar 31 is on the outside, while the corresponding part of the insertion hole 210 at the bottom end of the connecting tube 29 is on the inside.

[0024] By adopting the above technical solution, when in use, pushing the pusher block 37 upward will drive the fixed ring 34 upward, which in turn will drive the insertion rod 33 upward and stretch the spring 35. When the insertion rod 33 is completely separated from the corresponding insertion hole 210, stop pushing the pusher block 37 and rotate the pusher block 37 and the collar 31, which will drive the L-shaped slag guide pipe 32 to rotate until the slag discharge direction of the L-shaped slag guide pipe 32 is adjusted to a suitable angle. Then release the pusher block 37. At this time, the spring 35 will drive the insertion rod 33 downward to reset, so that the insertion rod 33 can be inserted into another corresponding insertion hole 210.

[0025] Working principle: When in use, push the push block 37 upward, which can drive the fixed ring 34 to move upward, thereby driving the insertion rod 33 to move upward and stretching the spring 35. When the insertion rod 33 is completely separated from the corresponding insertion hole 210, stop pushing the push block 37 upward and rotate the push block 37 and the collar 31, thereby driving the L-shaped slag guide pipe 32 to rotate until the slag discharge direction of the L-shaped slag guide pipe 32 is adjusted to a suitable angle. Then release the push block 37. At this time, the spring 35 will drive the insertion rod 33 to move downward and reset, thereby allowing the insertion rod 33 to be inserted into another corresponding insertion hole 210.

[0026] Afterwards, the ash discharge operation based on the biomass circulating fluidized bed boiler can be carried out. During the ash discharge operation, the motor 23 is started, which drives the main gear 24 to rotate, which in turn drives the secondary gear 27 to rotate, which in turn drives the rotating shaft 26 to rotate, which in turn drives the crushing blade 28 to rotate. This effectively crushes the waste ash discharged from the biomass circulating fluidized bed boiler, thus ensuring the full and convenient discharge of the waste ash and avoiding the phenomenon of pipe blockage caused by excessively large waste ash size. Subsequently, the crushed waste ash will be fully introduced into the connecting pipe 29 through the lower receiving cylinder 22 and then into the L-shaped ash guide pipe 32 through the connecting pipe 29. Finally, the crushed waste ash will be discharged from the L-shaped ash guide pipe 32 at a specified angle.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A slag discharge device for a biomass circulating fluidized bed boiler, comprising a slag discharge pipe (1), characterized in that: The bottom end of the slag discharge pipe (1) is provided with a crushing mechanism (2) for use, and the bottom end of the crushing mechanism (2) is provided with a slag guiding mechanism (3) for use. The crushing mechanism (2) includes an upper connecting cylinder (21) and a lower connecting cylinder (22). The upper connecting cylinder (21) is fixedly connected to the slag discharge pipe (1), and a motor (23) is fixedly installed at the top of the upper connecting cylinder (21). A main gear (24) is fixedly sleeved at the end of the output end of the motor (23). A rotating hole (25) is opened through the middle of the top of the upper connecting cylinder (21), and a rotating shaft (26) is rotatably inserted in the rotating hole (25). A secondary gear (27) is fixedly sleeved at the top of the rotating shaft (26), and the secondary gear (27) meshes with the main gear (24). A crushing blade (28) is fixedly sleeved at the bottom of the rotating shaft (26). The lower connecting cylinder (22) is detachably connected to the upper connecting cylinder (21), and a connecting pipe (29) is connected to the bottom of the lower connecting cylinder (22). The lower end of the lower connecting cylinder (22) is an inclined structure used with the connecting pipe (29).

2. The ash removal device for a biomass circulating fluidized bed boiler as described in claim 1, characterized in that, The slag guiding mechanism (3) includes a collar (31), which is rotatably sleeved on the outside of the bottom end of the connecting pipe (29), and an L-shaped slag guiding pipe (32) is integrally formed at the bottom end of the collar (31). A rod (33) is slidably inserted into the collar (31), and a fixed ring (34) is fixedly sleeved on the top end of the rod (33). A spring (35) is fixedly installed at the bottom end of the fixed ring (34), and the end of the spring (35) is fixedly connected to the collar (31). An array of insertion holes (210) is opened at the bottom end of the connecting pipe (29), and the rod (33) can be slidably inserted into the insertion holes (210).

3. The ash removal device for a biomass circulating fluidized bed boiler as described in claim 2, characterized in that, The collar (31) has a through hole (36) and the insertion rod (33) is slidably inserted into the through hole (36).

4. A slag discharge device for a biomass circulating fluidized bed boiler as described in claim 2, characterized in that, The fixed ring (34) has an integrally formed push block (37) for use.

5. A slag discharge device for a biomass circulating fluidized bed boiler as described in claim 1, characterized in that, The top end of the lower connecting cylinder (22) is fixedly installed with an array of screws (211), and the screws (211) can move through the upper connecting cylinder (21) and are threaded with nuts (212) on their outer side.

6. The ash removal device for a biomass circulating fluidized bed boiler as described in claim 5, characterized in that, The lower end of the upper connecting cylinder (21) is provided with an array of perforations (213), and the screw (211) can move through the perforations (213).

7. The ash removal device for a biomass circulating fluidized bed boiler as described in claim 1, characterized in that, The top end of the upper connecting tube (21) is fixedly connected to a bracket (214), and the motor (23) is fixedly inserted into the bracket (214).

8. A slag discharge device for a biomass circulating fluidized bed boiler as described in claim 7, characterized in that, The upper connecting tube (21) has symmetrically distributed through holes (215), and the bracket (214) is fixedly inserted into the through holes (215).

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