Material returning and ash discharging adjusting device for fluidized bed boiler

Abstract

The utility model relates to the technical field of material returning boxes of fluidized bed boilers, and discloses a material returning and ash discharging adjusting device for a fluidized bed boiler, which comprises a material returning box, an ash inlet box communicated with the top of the material returning box, a cooling cylinder fixedly connected with the outside of the ash inlet box, a water inlet pipe communicated with one side of the cooling cylinder, and a water pump fixedly connected with the input end of the water inlet pipe. A baffle is movably connected to one side of the bottom of the ash inlet box, an air cylinder is movably connected to one side of the baffle, and a fan is fixedly connected to one end of the material returning box. Through the arrangement of the decontamination frame, the threaded rod, the first motor, the gear box, the movable block and the connecting block, the purpose of automatically cleaning dirt in the material returning box can be achieved, so that the trouble that manual cleaning is needed in the prior art is avoided, meanwhile, when the dirt on the inner wall of the material returning box is cleaned, a hook is rotated, a movable plate is opened, and the operation is convenient. The dirt is conveyed out from the movable plate, so that the problem that the dirt blocks the material returning box is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of a return material box for a fluidized bed boiler, and more specifically to a return material and ash discharge adjustment device for a fluidized bed boiler. Background Art

[0002] A fluidized bed boiler is a device that produces steam by means of gas-solid fluidized combustion. Fluidization is the process by which gas is introduced into the solid particle bed. Under the drag of the rising gas, the granular solid fuel and ash are mixed with air and interact with each other, thus forming a state with liquid properties. After the fluidized bed boiler is put into operation, there is a large amount of circulating ash, and ash needs to be discharged from the return box frequently.

[0003] However, the existing return box has shortcomings when in use: when the existing return box is in use, because it is often necessary to release ash into the boiler, due to the excessive dust, a large amount of impurities will remain inside the return box when releasing the ash. If it is not handled, it will cause the return box to be blocked, causing the boiler to cool down too slowly, affecting work efficiency. However, the existing cleaning method adopts manual cleaning, which is not only inefficient but also dangerous because the return box also has a certain temperature. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a return material and ash discharge adjustment device for a fluidized bed boiler to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: a return material ash discharge adjustment device for a fluidized bed boiler, comprising a return material box, the top of the return material box is connected to an ash inlet box, the outside of the ash inlet box is fixedly connected to a cooling cylinder, one side of the cooling cylinder is connected to a water inlet pipe, the input end of the water inlet pipe is fixedly connected to a water pump, the input end of the water pump is connected to a pumping pipe, one side of the bottom of the ash inlet box is movably connected to a baffle, one side of the baffle is movably connected to a cylinder, one end of the return material box is fixedly connected to a fan, one side of the other end of the return material box is fixedly connected to a fixed plate, one side of the fixed plate is fixed A fixed cylinder is connected, the interior of the fixed cylinder is rotatably connected to a threaded rod, the external thread of the threaded rod is connected to a movable block, one side of the movable block is fixedly connected to a connecting block, one side of the fixed cylinder is fixedly connected to a gear box, the interior of the gear box is rotatably connected to a driving wheel, one side of the driving wheel is meshingly connected to a driven wheel, the interior of the return box is movably connected to a decontamination frame, the bottom of one end of the return box is movably connected to a movable plate, one side of the movable plate is movably connected to a hook, the bottom of one end of the return box is connected to an ash discharging cylinder, and one side of the ash discharging cylinder is fixedly connected to motor 2;

[0006] Preferably, one end of the connecting block away from the movable block passes through the side wall of the material return box and is connected to one side of the decontamination frame.

[0007] Preferably, a motor 1 is fixedly connected to the front of the return box near the right end, the output end of the motor 1 passes through one side of the gear box and is connected to one side of the driving wheel, and one end of the threaded rod passes through one side of the gear box and is connected to one side of the driven wheel.

[0008] Preferably, a slide groove is provided on one side of the return box, and a protective cover is movably connected to one side of the return box, and the position of the protective cover corresponds to the position of the slide groove.

[0009] Preferably, a partition is fixedly connected to the bottom of the ash inlet box, a hole is opened in the middle of the partition, and the baffle is located at the bottom of the hole.

[0010] Preferably, a water pipe is coiled inside the cooling cylinder, the water pipe is connected to the outside of the ash inlet box, and the input end of the water pipe is connected to the output end of the water inlet pipe, and the top of one side of the cooling cylinder is connected to an exhaust pipe.

[0011] Preferably, a rotating paddle is movably connected inside the ash discharging cylinder, and the output end of the second motor passes through the side wall of the ash discharging cylinder and is connected to one side of the rotating paddle.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model can achieve the purpose of automatically cleaning the dirt inside the return box by providing a cleaning frame, a threaded rod, a motor, a gear box, a movable block and a connecting block. When in use, the motor is started to prompt the active wheel to drive the driven wheel to rotate, and the threaded rod will rotate. At the same time, the action of the thread prompts the movable block to drive the cleaning frame to move back and forth inside the return box, thereby prompting the cleaning frame to remove the dirt sticking to the inner wall of the return box, thereby avoiding the trouble of traditional manual cleaning. At the same time, when the dirt on the inner wall of the return box is cleaned, the hook is rotated to open the movable plate, so that the dirt is transported out from the movable plate, thereby avoiding the problem of dirt clogging the return box.

[0014] 2. The utility model is provided with a cooling box, a water pump, a baffle and a cylinder, which can promote the cooling of the ash transported into the ash box. During use, when the ash falls into the ash box, the dust will be retained inside the ash box through the isolation of the baffle. At this time, the water pump is started to supply water to the inside of the cooling cylinder, so as to promote the ash in the ash box to cool down, thereby avoiding the problem of high-temperature ash damaging the return box, and at the same time, it can also promote the temperature in the boiler to drop faster, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the structure inside point A.

[0017] Figure 3 It is a front structural schematic diagram of the utility model.

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of the cross section at point B.

[0019] Figure 5 For this utility model Figure 3 Schematic diagram of the structure of the cross section at point C.

[0020] Figure 6 It is a right side structural schematic diagram of the utility model.

[0021] The accompanying drawings are marked as follows: 1. return box; 2. ash inlet box; 3. cooling cylinder; 4. baffle; 5. cylinder; 6. water inlet pipe; 7. water pump; 8. water suction pipe; 9. fan; 10. protective cover; 11. fixed plate; 12. fixed cylinder; 13. gear box; 14. motor one; 15. ash outlet cylinder; 16. connecting block; 17. threaded rod; 18. movable block; 19. exhaust pipe; 20. movable plate; 21. hook; 22. motor two; 23. driving wheel; 24. driven wheel; 25. decontamination frame. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The return material and ash discharge adjustment device for a fluidized bed boiler involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0023] Reference to this utility model Figure 1-6The device shown in the figure provides a return material and ash discharge adjustment device for a fluidized bed boiler, comprising a return material box 1, the top of the return material box 1 is connected to an ash feeding box 2, the outside of the ash feeding box 2 is fixedly connected to a cooling cylinder 3, one side of the cooling cylinder 3 is connected to a water inlet pipe 6, the input end of the water inlet pipe 6 is fixedly connected to a water pump 7, the input end of the water pump 7 is connected to a water pumping pipe 8, one side of the bottom of the ash feeding box 2 is movably connected to a baffle 4, one side of the baffle 4 is movably connected to a cylinder 5, one end of the return material box 1 is fixedly connected to a fan 9, one side of the other end of the return material box 1 is fixedly connected to a fixed plate 11, one side of the fixed plate 11 is fixedly connected to a fixed cylinder 12, the interior of the fixed cylinder 12 is rotatably connected to a threaded rod 17, the external thread of the threaded rod 17 is threadedly connected to a movable block 18, one side of the movable block 18 is fixedly connected to a connecting block 16, one side of the fixed cylinder 12 is fixedly connected to a gear box 13, the interior of the gear box 13 is rotatably connected to a driving wheel 23, the driving wheel 23 A driven wheel 24 is meshedly connected on one side, and a decontamination frame 25 is movably connected inside the return box 1. A movable plate 20 is movably connected to the bottom of one end of the return box 1, and a hook 21 is movably connected to one side of the movable plate 20. The bottom of one end of the return box 1 is connected to an ash discharge tube 15, and one side of the ash discharge tube 15 is fixedly connected to a motor 22. When in use, start the motor 14 to prompt the driving wheel 23 to drive the driven wheel 24 to rotate, and then the threaded rod 17 will rotate, and at the same time, the action of the thread will prompt the movable block 18 to drive the decontamination frame 25 to move back and forth inside the return box 1, thereby prompting the decontamination frame 25 to remove the dirt sticking to the inner wall of the return box 1, thereby avoiding the trouble of traditional manual cleaning. At the same time, when the dirt on the inner wall of the return box 1 is cleaned, the hook 21 is rotated to open the movable plate 20, so that the dirt is transported out from the movable plate 20, thereby avoiding the problem of dirt clogging the return box 1.

[0024] Furthermore, one end of the connecting block 16 away from the movable block 18 passes through the side wall of the return box 1 and is connected to one side of the decontamination frame 25. The advantage of this arrangement is that the decontamination frame 25 can be used to replace manual cleaning of the interior of the return box 1, thereby avoiding the trouble of traditional manual cleaning.

[0025] Furthermore, a motor 14 is fixedly connected to the front of the return box 1 near the right end, and the output end of the motor 14 passes through one side of the gear box 13 and is connected to one side of the driving wheel 23, and one end of the threaded rod 17 passes through one side of the gear box 13 and is connected to one side of the driven wheel 24. The advantage of this arrangement is that it can achieve the purpose of automatically cleaning the dirt inside the return box 1, thereby increasing the cleaning times of the return box 1 and increasing the efficiency of ash intake.

[0026] Furthermore, a chute is provided on one side of the return box 1, and a protective cover 10 is movably connected to one side of the return box 1. The position of the protective cover 10 corresponds to the position of the chute. The advantage of this arrangement is that when the return box 1 is not cleaned, the protective cover 10 can be used to cover the chute on one side of the return box 1, thereby avoiding the problem of ash flowing out of the chute.

[0027] Furthermore, a partition is fixedly connected to the bottom of the ash inlet box 2, a hole is opened in the middle of the partition, and the baffle 4 is located at the bottom of the hole. The advantage of this arrangement is that it can cause the ash to remain inside the ash inlet box 2, thereby facilitating its subsequent cooling.

[0028] Furthermore, a water pipe is coiled inside the cooling cylinder 3, the water pipe is connected to the outside of the ash inlet box 2, and the input end of the water pipe is connected to the output end of the water inlet pipe 6. The top of one side of the cooling cylinder 3 is connected to an exhaust pipe 19. The advantage of this arrangement is that the ash in the ash inlet box 2 can be cooled, thereby avoiding the problem of high-temperature ash damaging the return box 1. At the same time, it can also accelerate the temperature reduction in the boiler, thereby improving work efficiency.

[0029] Furthermore, the ash discharge barrel 15 is movably connected to a rotating paddle inside, and the output end of the motor 22 passes through the side wall of the ash discharge barrel 15 and is connected to one side of the rotating paddle. The advantage of this arrangement is that when the ash enters the ash discharge barrel 15, the ash will be retained on the top of the rotating paddle. At this time, the motor 22 can be used to adjust the rotation speed of the rotating paddle, so that the ash can slowly enter the boiler, thereby avoiding the problem of too much ash in the boiler, which affects the operation of the boiler.

[0030] The working principle of the utility model is as follows: first, ash will fall into the ash inlet box 2 from the top of the ash inlet box 2. At this time, the dust will be retained in the ash inlet box 2 through the barrier of the baffle 4. At this time, the water pump 7 is started to supply water to the inside of the cooling cylinder 3, thereby causing the ash in the ash inlet box 2 to cool down, thereby avoiding the problem of high-temperature ash damaging the return box 1, and at the same time, it can also accelerate the temperature reduction in the boiler, thereby improving work efficiency. After that, when the ash cools down, the cylinder 5 is started to cause one side of the baffle 4 to move away from the ash inlet box 2, thereby causing the ash to fall into the return box 1. At this time, the fan 9 is started to cause the ash to be blown to the top of the ash outlet cylinder 15 and fall into the ash outlet cylinder 15. At this time, when the ash enters the ash outlet cylinder 15, the ash will be retained on the top of the rotating paddle. At this time, the motor can be used The second 22 adjusts the speed of the rotating paddle so that the ash can slowly enter the boiler, thereby avoiding the problem of too much ash in the boiler, which affects the operation of the boiler. Finally, when the return box 1 is used for a long time and dirt appears on the inner wall of the return box 1, the motor 14 is started to prompt the driving wheel 23 to drive the driven wheel 24 to rotate. At this time, the threaded rod 17 will rotate, and at the same time, the action of the thread will prompt the movable block 18 to drive the decontamination frame 25 to move back and forth inside the return box 1, thereby prompting the decontamination frame 25 to remove the dirt sticking to the inner wall of the return box 1, thereby avoiding the trouble of traditional manual cleaning. At the same time, when the dirt on the inner wall of the return box 1 is cleaned up, the hook 21 is rotated to open the movable plate 20, so that the dirt is transported out from the movable plate 20, thereby avoiding the problem of dirt clogging the return box 1.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A return material and ash discharge adjustment device for a fluidized bed boiler, comprising a return material box (1), Features: The top of the return box (1) is connected to an ash inlet box (2), the outside of the ash inlet box (2) is fixedly connected to a cooling cylinder (3), one side of the cooling cylinder (3) is connected to a water inlet pipe (6), the input end of the water inlet pipe (6) is fixedly connected to a water pump (7), the input end of the water pump (7) is connected to a water pump pipe (8), one side of the bottom of the ash inlet box (2) is movably connected to a baffle (4), one side of the baffle (4) is movably connected to a cylinder (5), one end of the return box (1) is fixedly connected to a fan (9), one side of the other end of the return box (1) is fixedly connected to a fixing plate (11), one side of the fixing plate (11) is fixedly connected to a fixing cylinder (12), the inside of the fixing cylinder (12) is rotatably connected to a threaded rod (1 7), the outer thread of the threaded rod (17) is connected to a movable block (18), one side of the movable block (18) is fixedly connected to a connecting block (16), one side of the fixed cylinder (12) is fixedly connected to a gear box (13), the internal rotation of the gear box (13) is connected to a driving wheel (23), one side of the driving wheel (23) is meshingly connected to a driven wheel (24), the internal movably connected to a decontamination frame (25) of the return box (1), the bottom of one end of the return box (1) is movably connected to a movable plate (20), one side of the movable plate (20) is movably connected to a hook (21), the bottom of one end of the return box (1) is connected to an ash discharge cylinder (15), one side of the ash discharge cylinder (15) is fixedly connected to a motor 2 (22).

2. The return material and ash discharge adjustment device for a fluidized bed boiler according to claim 1, Features: One end of the connecting block (16) away from the movable block (18) penetrates the side wall of the return box (1) and is connected to one side of the decontamination frame (25).

3. The return material and ash discharge adjustment device for a fluidized bed boiler according to claim 1, Features: A motor 1 (14) is fixedly connected to the front of the return box (1) near the right end, and the output end of the motor 1 (14) passes through one side of the gear box (13) and is connected to one side of the driving wheel (23), and one end of the threaded rod (17) passes through one side of the gear box (13) and is connected to one side of the driven wheel (24).

4. The return material and ash discharge adjustment device for a fluidized bed boiler according to claim 1, Features: A slide groove is provided on one side of the return box (1), and a protective cover (10) is movably connected to one side of the return box (1), wherein the position of the protective cover (10) corresponds to the position of the slide groove.

5. The return material and ash discharge adjustment device for a fluidized bed boiler according to claim 1, Features: A partition is fixedly connected to the bottom of the ash inlet box (2), a hole is provided in the middle of the partition, and the baffle (4) is located at the bottom of the hole.

6. The return material and ash discharge adjustment device for a fluidized bed boiler according to claim 1, Features: A water pipe is coiled inside the cooling cylinder (3), the water pipe is connected to the outside of the ash inlet box (2), and the input end of the water pipe is connected to the output end of the water inlet pipe (6). The top of one side of the cooling cylinder (3) is connected to an exhaust pipe (19).

7. The return material and ash discharge adjustment device for a fluidized bed boiler according to claim 1, Features: The interior of the ash discharging cylinder (15) is movably connected with a rotating paddle, and the output end of the second motor (22) penetrates the side wall of the ash discharging cylinder (15) and is connected to one side of the rotating paddle.

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