Circulating fluidized bed gas device

Abstract

The utility model relates to the technical field of fluidized bed combustion, and discloses a circulating fluidized bed gas device which comprises a combustion cylinder, a separation cylinder is arranged on the side face of the combustion cylinder, a backflow cylinder is fixedly connected to the inner wall, close to the bottom, of the separation cylinder in a sleeved mode, and the end, away from the separation cylinder, of the backflow cylinder is fixedly connected with the inner wall of the combustion cylinder in a sleeved mode. And an exhaust pipe is fixedly assembled at the top of the separation cylinder, a feeding frame is fixedly assembled on the side face of the combustion cylinder, and a feeding pipe is fixedly connected to the inner wall of the combustion cylinder in a sleeving mode. A motor and a main gear are used in cooperation, the motor drives the main gear to rotate, so that the main gear drives a driving gear to rotate, then the driving gear, a transmission belt and a rotating shaft are used in cooperation, the rotating shaft drives a baffle to rotate, and a feeding groove in the baffle is assisted to be in butt joint with the inner wall of a feeding pipe; accordingly, coal in the feeding frame is assisted to be gradually added, and it is avoided that too much coal is fed, and stable use of the device is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of fluidized bed combustion, in particular to a circulating fluidized bed gas device. Background Art

[0002] A circulating fluidized bed is a bed in which a large number of solid particles are suspended in a moving fluid, so that the particles have certain apparent characteristics of the fluid. This fluid-solid contact state is called solid fluidization, i.e. a circulating fluidized bed.

[0003] During use, traditional circulating fluidized bed gas devices mostly have a feed pipe to assist coal to enter the interior of the combustion tube, and then use the internal pipe of the combustion tube to assist the flue gas to the interior of the separation tube. Larger particles go through the reflux pipe to the interior of the combustion tube for secondary processing. However, during use, when the traditional device feeds too much through the feed pipe, it is easy to cause coal accumulation at the bottom of the combustion tube, thereby affecting the combustion efficiency inside the combustion tube. In addition, after combustion inside the traditional combustion tube, the coal particles are easy to stick to the inner wall of the combustion tube, thereby affecting the stable use of the device. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a circulating fluidized bed gas device to solve the problems raised by the above background technology.

[0005] The utility model provides the following technical solutions: a circulating fluidized bed gas device, comprising a combustion tube, a separation tube is arranged on the side of the combustion tube, a reflux tube is fixedly sleeved on the inner wall of the separation tube near the bottom, and the end of the reflux tube away from the separation tube is fixedly sleeved on the inner wall of the combustion tube, an exhaust pipe is fixedly installed on the top of the separation tube, a feed frame is fixedly installed on the side of the combustion tube, a feed pipe is fixedly sleeved on the inner wall of the combustion tube, and the inner wall of the feed pipe away from the end of the combustion tube is communicated with the inner wall of the feed frame, an inclined plate is fixedly installed on the side of the inner wall of the feed frame, a rotating shaft is rotatably connected to the side of the inner wall of the feed frame, a baffle is fixedly installed on the side of the rotating shaft, a feed trough is opened on the side of the baffle, and the inner wall of the feed trough is communicated with the inner wall of the feed pipe.

[0006] As a preferred technical solution of the utility model, a driving gear is provided on the inner wall of the feed frame, the number of the rotating shafts is six, and the side surfaces of the six rotating shafts are respectively fixedly assembled with the side surfaces of three driving gears and the side surfaces of three baffles, and the outer edges of the six adjacent rotating shafts are movably sleeved with transmission belts.

[0007] As a preferred technical solution of the utility model, a motor is fixedly installed on the side of the inner wall of the feed frame, and the output shaft of the motor is fixedly sleeved with a main gear, and the teeth on the outer edge of the main gear are meshed with the teeth on the outer edge of the adjacent drive gear, and the three adjacent drive gears are all meshed with each other.

[0008] As a preferred technical solution of the utility model, the top of the inner wall of the combustion tube is rotatably connected to a main rod, the outer edge of the main rod is fixedly equipped with a scraper, and the side of the scraper is rotatably connected to the inner wall of the combustion tube.

[0009] As a preferred technical solution of the utility model, an auxiliary rod is fixedly mounted on the bottom of the main rod, and a fan blade is fixedly mounted on the outer edge of the auxiliary rod.

[0010] As a preferred technical solution of the utility model, the number of the inclined plates is three, and the sizes of the three inclined plates are different, and the lengths of the three inclined plates gradually decrease from bottom to top.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The circulating fluidized bed gas device uses a motor and a main gear to drive the main gear to rotate, and then uses the main gear to drive the driving gear to rotate, and then uses the driving gear, the transmission belt, and the rotating shaft to drive the baffle to rotate, and assists the feed trough inside the baffle to connect with the inner wall of the feed pipe, thereby assisting the gradual addition of coal inside the feed frame to avoid excessive coal feeding and affecting the stable use of the device.

[0013] 2. The circulating fluidized bed gas device, through the coordinated use of the combustion tube and the main rod, utilizes the flue gas at the bottom of the combustion tube to drive the fan blade to rotate, thereby utilizing the rotation of the fan blade to drive the main rod to rotate, and utilizing the main rod to drive the scraper to rotate, and then utilizing the scraper to scrape impurities from the inner wall of the combustion tube near the top, thereby assisting the stable use of the combustion tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front section structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the front cross-section structure of the feed frame of the utility model;

[0017] Figure 4 This is a schematic diagram of the side section structure of the baffle of the utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the combustion tube of the utility model.

[0019] In the figure: 1. combustion cylinder; 2. separation cylinder; 3. reflux cylinder; 4. exhaust pipe; 5. feed frame; 6. feed pipe; 7. inclined plate; 8. baffle; 9. rotating shaft; 10. feed trough; 11. driving gear; 12. transmission belt; 13. main gear; 14. motor; 15. scraper; 16. auxiliary rod; 17. fan blade; 18. main rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 A circulating fluidized bed gas device comprises a combustion tube 1, a separation tube 2 is arranged on the side of the combustion tube 1, a reflux tube 3 is fixedly sleeved on the inner wall of the separation tube 2 near the bottom, and the end of the reflux tube 3 away from the separation tube 2 is fixedly sleeved with the inner wall of the combustion tube 1, an exhaust pipe 4 is fixedly installed on the top of the separation tube 2, a feed frame 5 is fixedly installed on the side of the combustion tube 1, a feed pipe 6 is fixedly sleeved on the inner wall of the combustion tube 1, and the inner wall of the feed pipe 6 away from the combustion tube 1 is connected to the inner wall of the feed frame 5, and the feed frame 5 An inclined plate 7 is fixedly installed on the side of the inner wall, and a rotating shaft 9 is rotatably connected to the side of the inner wall of the feed frame 5. A baffle 8 is fixedly installed on the side of the rotating shaft 9. A feed trough 10 is opened on the side of the baffle 8, and the inner wall of the feed trough 10 is connected to the inner wall of the feed pipe 6. By cooperating with the baffle 8 and the rotating shaft 9, the baffle 8 is driven to rotate by the rotating shaft 9, thereby assisting the inner wall of the feed trough 10 to dock with the inner wall of the feed pipe 6, thereby assisting the coal inside the feed frame 5 to stably pass through the inner wall of the feed pipe 6 to the inside of the combustion tube 1.

[0022] In a preferred embodiment, a driving gear 11 is provided on the inner wall of the feed frame 5, the number of rotating shafts 9 is six, and the side surfaces of the six rotating shafts 9 are respectively fixedly assembled with the side surfaces of three driving gears 11 and the side surfaces of three baffles 8, and the outer edges of the six adjacent rotating shafts 9 are movably sleeved with a transmission belt 12. By the coordinated use of the driving gear 11 and the rotating shaft 9, the driving gear 11 is used to drive the rotating shaft 9 to rotate, thereby utilizing the transmission belt 12 to assist the rotating shaft 9 in transmission, thereby assisting the baffle 8 in stable rotation.

[0023] In a preferred embodiment, a motor 14 is fixedly mounted on the side of the inner wall of the feed frame 5, and the output shaft of the motor 14 is fixedly sleeved with a main gear 13, and the gear teeth on the outer edge of the main gear 13 are meshed with the gear teeth on the outer edge of an adjacent drive gear 11, and the three adjacent drive gears 11 are meshed with each other. By using the motor 14 and the main gear 13 in coordination, the motor 14 is used to drive the main gear 13 to rotate, thereby driving the drive gear 11 to rotate using the main gear 13, and then driving the baffle 8 to rotate using the drive gear 11.

[0024] In a preferred embodiment, the top of the inner wall of the combustion tube 1 is rotatably connected to a main rod 18, the outer edge of the main rod 18 is fixedly equipped with a scraper 15, and the side of the scraper 15 is rotatably connected to the inner wall of the combustion tube 1. By using the main rod 18 and the scraper 15 in coordination, the scraper 15 is driven to rotate by the main rod 18, so that the outer edge of the scraper 15 and the inner wall of the combustion tube 1 are used to scrape, thereby stably scraping impurities on the inner wall of the combustion tube 1.

[0025] In a preferred embodiment, the bottom of the main rod 18 is fixedly equipped with an auxiliary rod 16, and the outer edge of the auxiliary rod 16 is fixedly equipped with a fan blade plate 17. By using the auxiliary rod 16 and the fan blade plate 17 in coordination, the fan blade plate 17 is used to push the auxiliary rod 16 to rotate in the gas inside the combustion tube 1, and then the auxiliary rod 16 is used to drive the main rod 18 to rotate stably.

[0026] In a preferred embodiment, there are three inclined plates 7, and the sizes of the three inclined plates 7 are different. The lengths of the three inclined plates 7 gradually decrease from bottom to top. By adding the inclined plates 7, the three inclined plates 7 are utilized to assist in the stable transmission of coal inside the feed frame 5.

[0027] Working principle, when the device is in use, the motor 14 is used to drive the main gear 13 to rotate, and the main gear 13 is used to drive the driving gear 11 to rotate, and then the driving gear 11, the transmission belt 12, and the rotating shaft 9 are used in coordination, so as to use the rotating shaft 9 to drive the baffle 8 to rotate, and assist the feed trough 10 inside the baffle 8 to connect with the inner wall of the feed pipe 6, so as to assist the gradual addition of coal inside the feed frame 5 to avoid excessive coal feeding and affect the stable use of the device, and utilize the flue gas at the bottom of the combustion tube 1 to promote the rotation of the fan blade plate 17, so as to drive the main rod 18 to rotate during the rotation of the fan blade plate 17, and use the main rod 18 to drive the scraper 15 to rotate, and then use the scraper 15 to scrape impurities from the inner wall of the combustion tube 1 near the top, so as to assist the stable use of the combustion tube 1.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circulating fluidized bed gas device, comprising a combustion tube (1), characterized in that: A separation cylinder (2) is arranged on the side of the combustion cylinder (1); a return cylinder (3) is fixedly sleeved on the inner wall of the separation cylinder (2) near the bottom, and one end of the return cylinder (3) away from the separation cylinder (2) is fixedly sleeved on the inner wall of the combustion cylinder (1); an exhaust pipe (4) is fixedly mounted on the top of the separation cylinder (2); a feed frame (5) is fixedly mounted on the side of the combustion cylinder (1); and a feed pipe (6) is fixedly sleeved on the inner wall of the combustion cylinder (1). , and the inner wall of the feed pipe (6) at one end away from the combustion tube (1) is connected to the inner wall of the feed frame (5), the side of the inner wall of the feed frame (5) is fixedly equipped with an inclined plate (7), the side of the inner wall of the feed frame (5) is rotatably connected with a rotating shaft (9), the side of the rotating shaft (9) is fixedly equipped with a baffle (8), the side of the baffle (8) is provided with a feed trough (10), and the inner wall of the feed trough (10) is connected to the inner wall of the feed pipe (6).

2. A circulating fluidized bed gas device according to claim 1, characterized in that: The inner wall of the feed frame (5) is provided with a driving gear (11), the number of the rotating shafts (9) is six, and the side surfaces of the six rotating shafts (9) are respectively fixedly assembled with the side surfaces of three driving gears (11) and the side surfaces of three baffles (8), and the outer edges of the six adjacent rotating shafts (9) are all movably sleeved with a transmission belt (12).

3. A circulating fluidized bed gas device according to claim 1, characterized in that: A motor (14) is fixedly mounted on the side of the inner wall of the feed frame (5); the output shaft of the motor (14) is fixedly sleeved with a main gear (13); the gear teeth on the outer edge of the main gear (13) mesh with the gear teeth on the outer edge of an adjacent drive gear (11); and the three adjacent drive gears (11) are all meshed with each other.

4. A circulating fluidized bed gas device according to claim 1, characterized in that: The top of the inner wall of the combustion tube (1) is rotatably connected to a main rod (18), the outer edge of the main rod (18) is fixedly equipped with a scraper (15), and the side of the scraper (15) is rotatably connected to the inner wall of the combustion tube (1).

5. A circulating fluidized bed gas device according to claim 4, characterized in that: The bottom of the main rod (18) is fixedly mounted with an auxiliary rod (16), and the outer edge of the auxiliary rod (16) is fixedly mounted with a fan blade plate (17).

6. A circulating fluidized bed gas device according to claim 1, characterized in that: The number of the inclined plates (7) is three, and the sizes of the three inclined plates (7) are all different. The lengths of the three inclined plates (7) gradually decrease from bottom to top.

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