Feeding component of coal-fired circulating fluidized bed boiler

Abstract

The utility model discloses a feeding component of a coal-fired circulating fluidized bed boiler, and relates to the technical field of coal-fired boiler feeding. The device comprises a frame body, the top of the frame body is provided with a storage bin, the inner bottom of the storage bin is provided with a guide bin, the bottom of the guide bin is provided with a distribution bin, the bottom of the distribution bin is provided with a distribution bin, the interior of the distribution bin is rotationally connected with a distribution roller, and one end of the frame body is fixedly connected with a distribution motor. According to the device, through cooperative use of the discharging assembly, the crushing assembly and the material distributing assembly, raw materials in the storage bin are conveniently crushed and then poured into the material distributing bin, and meanwhile, a material distributing motor is started to drive a material distributing roller to drive an arc-shaped material distributing groove to rotate; and the crushed raw materials in the material distribution bin evenly fall into the arc-shaped material distribution grooves, then the crushed raw materials in the arc-shaped material distribution grooves penetrate through the discharging openings to fall into the top of the material guide table under the action of gravity, and the crushed raw materials fall into a boiler combustion chamber along the top of the material guide table under the action of gravity.

Description

Technical Field

[0001] The present application relates to the technical field of coal-fired boiler feeding, and in particular to a coal-fired circulating fluidized bed boiler feeding component. Background Art

[0002] As a highly efficient and environmentally friendly thermal energy equipment, coal-fired circulating fluidized bed boilers play an important role in modern industrial production. In the operation of the boiler, the feeding component plays a vital role. It is responsible for feeding the coal into the furnace evenly and stably to ensure the normal operation and combustion efficiency of the boiler.

[0003] The design of the feed components of conventional coal-fired circulating fluidized bed boilers is relatively basic, usually using a simple mechanical conveying structure, such as a motor-driven conveyor belt or screw feeder, to continuously transport the coal from storage to the boiler combustion chamber.

[0004] However, in actual application, the screw feeder uses a method of continuously feeding the boiler combustion chamber. Although this method ensures the continuity of feeding, it also brings new problems. Since the coal is continuously fed into the combustion chamber, it often causes the coal to accumulate and burn in the combustion chamber. Such accumulation easily causes the coal at the bottom to be covered by the newly fed coal before it is completely burned, resulting in the accumulation and combustion of coal in the combustion chamber. Utility Model Content

[0005] The purpose of the present application is to solve the problem that the spiral feeder adopts the method of continuously feeding into the boiler combustion chamber, which easily causes the coal at the bottom to be covered by the newly fed coal before it is completely burned, thereby resulting in incomplete combustion of the coal and reducing the thermal efficiency of the boiler. The present application provides a feeding component for a coal-fired circulating fluidized bed boiler.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A feeding component of a coal-fired circulating fluidized bed boiler comprises a frame, a storage bin is provided on the top of the frame, a guide bin is provided on the inner bottom of the storage bin, a distribution bin is provided on the bottom of the guide bin, a distribution bin is provided on the bottom of the distribution bin, a distribution bin is provided on the bottom of the distribution bin, a distribution roller is rotatably connected to the inside of the distribution bin, a distribution motor is fixedly connected to one end of the frame, an output end of the distribution motor is fixedly connected to the distribution roller, a discharge port is provided at the bottom of the distribution bin, a guide platform is fixedly connected to one side of the frame, the guide platform is installed below the discharge port, arc-shaped distribution grooves are evenly provided on the periphery of the distribution roller, a discharge assembly is installed on the inner bottom of the storage bin, a crushing assembly is installed inside the guide bin, and a distribution assembly is installed inside the distribution bin.

[0008] By adopting the above technical scheme, by setting the coordinated use of the unloading component with the crushing component and the distribution component, it is convenient to pour the raw materials inside the storage bin into the inside of the distribution bin after being crushed, and at the same time, by starting the distribution motor to drive the distribution roller to drive the arc distribution trough to rotate, and make the crushed raw materials inside the distribution bin fall evenly into the inside of multiple arc distribution troughs, and then under the action of gravity, the crushed raw materials inside the arc distribution trough pass through the unloading port and fall into the top of the guide platform, and under the action of gravity, fall into the boiler combustion chamber along the top of the guide platform, so that it is convenient to use multiple arc distribution troughs to uniformly transport the raw materials extracted from the storage bin to the inside of the boiler combustion chamber in a timely and quantitative manner, so that the raw materials are fully burned, thereby improving the thermal efficiency of the boiler.

[0009] Furthermore, the material discharge component includes an arc-shaped material discharge trough opened at the bottom of the storage bin, the interior of the material discharge trough is rotatably connected to a material discharge auger, one side of the frame is fixedly connected to a material discharge motor, and the output end of the material discharge motor is fixedly connected to the material discharge auger.

[0010] By adopting the above technical solution and arranging the coordinated use of the unloading motor and the unloading auger, it is convenient to start the unloading motor to drive the unloading auger to push the raw materials inside the storage bin and move them along the inner wall of the arc-shaped unloading trough to the inside of the guide bin, thereby improving the practicability of the device.

[0011] Furthermore, the crushing assembly includes a crushing cutter head rotatably connected to the inside of the material guide bin, one end of the frame is fixedly connected to a crushing motor, and the output end of the crushing motor is fixedly connected to the crushing cutter head.

[0012] By adopting the above technical solution and arranging the coordinated use of the crushing motor and the crushing cutter head, it is convenient to start the crushing motor to drive the crushing cutter head to stir and crush the raw materials falling into the guide bin, thereby improving the practicability of the device.

[0013] Furthermore, the material distribution assembly includes a material distribution auger rotatably connected to the inside of the material distribution bin, one end of the frame is fixedly connected to a material distribution motor, and the output end of the material distribution motor is fixedly connected to the material distribution auger.

[0014] By adopting the above technical solution and arranging the coordinated use of the material distribution motor and the material distribution auger, it is convenient to push the crushed raw materials inside the material guide bin into the inside of the material distribution bin along the length direction of the material distribution auger, thereby further improving the practicability of the device.

[0015] Furthermore, a lifting chute is provided on one side of the material discharge port, a lifting slider is slidably connected inside the lifting chute, one end of the lifting slider is rotatably connected to a loosening rod, the loosening rod is installed inside the material discharge port, and a transmission assembly is installed at one end of the material distribution roller.

[0016] By adopting the above technical scheme, by setting the transmission component for use with the lifting chute and the lifting slider, it is convenient to drive the lifting slider to move back and forth along the length direction of the lifting chute when the material distribution motor is started to drive the material distribution roller to rotate, and the lifting slider drives the loosening rod to loosen the raw materials blocked inside the discharge port, thereby improving the practicability of the device.

[0017] Furthermore, the transmission assembly includes a transmission rod hinged at one end of the lifting slider, one end of the frame is rotatably connected to a transmission wheel, the transmission wheel is eccentrically hinged to the transmission rod, and one end of the material distribution roller is fixedly connected to a driving wheel meshing with the transmission wheel.

[0018] By adopting the above technical solution, by setting the active wheel, the transmission wheel and the transmission rod for coordinated use, it is convenient to start the material distribution motor to drive the material distribution roller to rotate, drive the active wheel and the transmission wheel to engage, and pull one end of the transmission rod to rotate eccentrically, thereby driving the lifting slider to drive the loosening rod to reciprocate along the length direction of the lifting slide.

[0019] Furthermore, the diameter of the driving wheel is much larger than that of the transmission wheel.

[0020] By adopting the above technical solution, the diameter of the driving wheel is set to be much larger than that of the transmission wheel, thereby effectively improving the rotation efficiency of the transmission wheel.

[0021] Furthermore, one end of the loosening rod passes through the lifting slider and is fixedly connected to a flip gear, and one side of the frame is fixedly connected to a flip rack meshing with the flip gear.

[0022] By adopting the above technical solution and setting the coordinated use of the flip gear and the flip rack, when the lifting slider is driven to drive the loosening rod to move along the length direction of the lifting slide, the loosening rod drives the flip gear to engage with the flip rack, and the flip gear drives the loosening rod to rotate, thereby effectively improving the loosening effect of the loosening rod on the raw materials blocked inside the discharge port.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. By setting up the coordinated use of the unloading component with the crushing component and the distribution component, it is convenient to pour the raw materials inside the storage bin into the inside of the distribution bin after being crushed. At the same time, by starting the distribution motor to drive the distribution roller to drive the arc distribution trough to rotate, the crushed raw materials inside the distribution bin can be evenly dropped into the inside of multiple arc distribution troughs. Then, under the action of gravity, the crushed raw materials inside the arc distribution trough pass through the unloading port and fall into the top of the guide platform. Under the action of gravity, they fall into the boiler combustion chamber along the top of the guide platform. In this way, it is convenient to use multiple arc distribution troughs to evenly transport the raw materials extracted from the storage bin to the inside of the boiler combustion chamber in a timely and quantitative manner, so that the raw materials are fully burned and the thermal efficiency of the boiler is improved.

[0025] 2. By setting up the transmission component for use with the lifting chute and the lifting slider, when the material distribution motor is started to drive the material distribution roller to rotate, the lifting slider is driven to move back and forth along the length direction of the lifting chute, and the lifting slider drives the loosening rod to loosen the raw materials blocked inside the discharge port, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a side cross-sectional view of the device body in this application.

[0028] Figure 3 It is a side sectional view of the dividing roller in this application.

[0029] Figure 4 It is an exploded view of the internal structure of the lifting chute in this application.

[0030] Description of reference numerals:

[0031] 1. Frame; 2. Storage bin; 4. Guide bin; 5. Distribution bin; 6. Distribution bin; 7. Distribution roller; 8. Distribution motor; 9. Discharge port; 10. Guide table; 11. Discharge auger; 12. Discharge motor; 13. Crushing cutter head; 14. Crushing motor; 15. Distribution auger; 16. Distribution motor; 17. Lifting chute; 18. Lifting slider; 19. Loosening rod; 20. Transmission rod; 21. Transmission wheel; 22. Driving wheel; 23. Flip gear; 24. Flip rack. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a feeding component for a coal-fired circulating fluidized bed boiler.

[0034] Reference Figure 1-Figure 3A feeding component of a coal-fired circulating fluidized bed boiler comprises a frame 1, a storage bin 2 is provided on the top of the frame 1, a guide bin 4 is provided on the inner bottom of the storage bin 2, a distribution bin 5 is provided on the bottom of the guide bin 4, a distribution bin 6 is provided on the bottom of the distribution bin 5, a distribution bin 6 is rotatably connected with a distribution roller 7 inside the distribution bin 6, a distribution motor 8 is fixedly connected to one end of the frame 1, an output end of the distribution motor 8 is fixedly connected to the distribution roller 7, a discharge port 9 is provided at the bottom of the distribution bin 6, a guide platform 10 is fixedly connected to one side of the frame 1, the guide platform 10 is installed below the discharge port 9, arc-shaped distribution grooves are evenly provided on the periphery of the distribution roller 7, a discharge assembly is installed on the inner bottom of the storage bin 2, a crushing assembly is installed inside the guide bin 4, and a distribution assembly is installed inside the distribution bin 5;

[0035] The material unloading assembly includes an arc-shaped unloading trough provided at the bottom of the storage bin 2, a material unloading auger 11 is rotatably connected inside the unloading trough, a material unloading motor 12 is fixedly connected to one side of the frame 1, and an output end of the material unloading motor 12 is fixedly connected to the material unloading auger 11;

[0036] Moreover, the crushing assembly includes a crushing cutter head 13 rotatably connected to the inside of the material guide bin 4, one end of the frame 1 is fixedly connected to a crushing motor 14, and the output end of the crushing motor 14 is fixedly connected to the crushing cutter head 13;

[0037] Furthermore, the material distribution assembly includes a material distribution auger 15 rotatably connected to the inside of the material distribution bin 5 , and one end of the frame 1 is fixedly connected to a material distribution motor 16 , and the output end of the material distribution motor 16 is fixedly connected to the material distribution auger 15 .

[0038] When in use, firstly, the unloading motor 12 is started to drive the unloading auger 11 to rotate, and the unloading auger 11 is driven to push the raw materials in the storage bin 2 to fall into the guide bin 4 along the length direction of the arc-shaped unloading trough, and at the same time, the crushing motor 14 is started to drive the crushing cutter head 13 to rotate, and the crushing cutter head 13 rotates to crush the raw materials falling into the guide bin 4, and then the distribution motor 16 is started to drive the distribution auger 15 to rotate, and the distribution auger 15 pushes the raw materials crushed in the crushing motor 14 to move to the inside of the distribution bin 5, and passes through the distribution bin 5 to fall into the inside of the distribution bin 6;

[0039] At the same time, the dividing motor 8 is started to drive the dividing roller 7 to rotate, and the dividing roller 7 drives the multiple arc-shaped dividing troughs to pass through the connecting ends of the distribution bin 5 and the distribution bin 6 at a uniform speed in turn, so that the crushed raw materials inside the distribution bin 5 fall evenly into the multiple arc-shaped dividing troughs, and then the dividing motor 8 drives the dividing roller 7 to drive the arc-shaped dividing troughs to move to one side of the discharge port 9, so that the crushed raw materials inside the arc-shaped dividing troughs pass through the discharge port 9 and fall into the top of the guide platform 10, and fall into the boiler combustion chamber along the top of the guide platform 10 under the action of gravity, so as to facilitate the use of multiple arc-shaped dividing troughs to evenly divide the raw materials discharged from the storage bin 2, and drive the arc-shaped dividing troughs to move to one side of the discharge port 9 in turn by the dividing roller 7 to discharge the raw materials into the boiler combustion chamber through the guide platform 10, so that the raw materials can be evenly transported to the inside of the boiler combustion chamber in a timely and quantitative manner, so that the raw materials are fully burned, thereby improving the thermal efficiency of the boiler.

[0040] Reference Figure 2 and Figure 4 A lifting chute 17 is provided on one side of the material discharge port 9, a lifting slider 18 is slidably connected inside the lifting chute 17, one end of the lifting slider 18 is rotatably connected to a loosening rod 19, the loosening rod 19 is installed inside the material discharge port 9, and a transmission component is installed at one end of the material distribution roller 7;

[0041] The transmission assembly includes a transmission rod 20 hinged at one end of the lifting slider 18, one end of the frame 1 is rotatably connected to a transmission wheel 21, the transmission wheel 21 is eccentrically hinged to the transmission rod 20, and one end of the material distribution roller 7 is fixedly connected to a driving wheel 22 meshing with the transmission wheel 21;

[0042] Moreover, the diameter of the driving wheel 22 is much larger than that of the transmission wheel 21;

[0043] Moreover, one end of the loosening rod 19 passes through the lifting slider 18 and is fixedly connected to a flip gear 23 , and one side of the frame body 1 is fixedly connected to a flip rack 24 meshing with the flip gear 23 .

[0044] When in use, when the material distribution motor 8 is started to drive the material distribution roller 7 to rotate, the material distribution roller 7 drives the driving wheel 22 to engage with the transmission wheel 21, and drives the transmission wheel 21 to drive one end of the transmission rod 20 to rotate eccentrically, and at the same time, one end of the transmission rod 20 drives the lifting slider 18 to reciprocate along the length direction of the lifting chute 17, so that the lifting slider 18 drives the loosening rod 19 along the length direction of the lifting chute 17 to loosen the raw materials blocked inside the discharge port 9;

[0045] At the same time, the lifting slider 18 drives the flip gear 23 to engage with the flip rack 24, and the flip gear 23 drives the loosening rod 19 to rotate, thereby effectively improving the loosening efficiency of the loosening rod 19 on the raw materials blocked inside the discharge port 9 and improving the practicability of the device.

[0046] The implementation principle of the feeding component of a coal-fired circulating fluidized bed boiler in this embodiment is as follows: first, the feeding motor 12 is started to drive the feeding auger 11 to rotate, and the feeding auger 11 is driven to push the raw materials in the storage bin 2 to fall into the guide bin 4 along the length direction of the arc-shaped feeding trough, and at the same time, the crushing motor 14 is started to drive the crushing cutter head 13 to rotate, and the crushing cutter head 13 rotates to crush the raw materials falling into the guide bin 4, and then the feeding motor 16 is started to drive the feeding auger 15 to rotate, and the feeding auger 15 pushes the raw materials crushed in the crushing motor 14 to move to the inside of the feeding bin 5, and passes through the feeding bin 5 to fall into the inside of the distribution bin 6;

[0047] Then, the dividing motor 8 is started to drive the dividing roller 7 to rotate, and the dividing roller 7 drives the multiple arc-shaped dividing troughs to pass through the connection ends of the material distribution bin 5 and the dividing bin 6 in sequence at a uniform speed, so that the crushed raw materials inside the material distribution bin 5 fall evenly into the multiple arc-shaped dividing troughs, and then the dividing motor 8 drives the dividing roller 7 to drive the arc-shaped dividing troughs to move to one side of the discharge port 9, so that the crushed raw materials inside the arc-shaped dividing troughs pass through the discharge port 9 and fall into the top of the guide platform 10, and fall into the boiler combustion chamber along the top of the guide platform 10 under the action of gravity;

[0048] At the same time, the material distribution roller 7 drives the active wheel 22 to engage with the transmission wheel 21, and drives the transmission wheel 21 to drive one end of the transmission rod 20 to rotate eccentrically, and at the same time, one end of the transmission rod 20 drives the lifting slider 18 to reciprocate along the length direction of the lifting slide 17, and at the same time, the lifting slider 18 drives the flip gear 23 to engage with the flip rack 24, and the flip gear 23 drives the loosening rod 19 to rotate, so that the lifting slider 18 drives the loosening rod 19 to loosen the raw materials blocked inside the discharge port 9 along the length direction of the lifting slide 17.

Claims

1. A coal-fired circulating fluidized bed boiler feed component, comprising a frame (1), characterized in that: A storage bin (2) is provided on the top of the frame (1), a guide bin (4) is provided on the inner bottom of the storage bin (2), a distribution bin (5) is provided on the bottom of the guide bin (4), a distribution bin (6) is provided on the bottom of the distribution bin (5), a distribution roller (7) is rotatably connected to the inside of the distribution bin (6), a distribution motor (8) is fixedly connected to one end of the frame (1), an output end of the distribution motor (8) is fixedly connected to the distribution roller (7), a discharge port (9) is provided on the bottom of the distribution bin (6), a guide platform (10) is fixedly connected to one side of the frame (1), the guide platform (10) is installed below the discharge port (9), arc-shaped distribution grooves are evenly provided on the periphery of the distribution roller (7), a discharge assembly is installed on the inner bottom of the storage bin (2), a crushing assembly is installed inside the guide bin (4), and a distribution assembly is installed inside the distribution bin (5).

2. A coal-fired circulating fluidized bed boiler feed component according to claim 1, characterized in that: The material discharge assembly comprises an arc-shaped material discharge trough provided at the bottom of the storage bin (2), a material discharge auger (11) being rotatably connected inside the material discharge trough, a material discharge motor (12) being fixedly connected to one side of the frame (1), and an output end of the material discharge motor (12) being fixedly connected to the material discharge auger (11).

3. A coal-fired circulating fluidized bed boiler feed component according to claim 1, characterized in that: The crushing assembly comprises a crushing cutter head (13) rotatably connected to the inside of the material guide bin (4); one end of the frame (1) is fixedly connected to a crushing motor (14); and the output end of the crushing motor (14) is fixedly connected to the crushing cutter head (13).

4. A coal-fired circulating fluidized bed boiler feed component according to claim 1, characterized in that: The material distribution assembly comprises a material distribution auger (15) rotatably connected to the interior of a material distribution bin (5); one end of the frame (1) is fixedly connected to a material distribution motor (16); and an output end of the material distribution motor (16) is fixedly connected to the material distribution auger (15).

5. A coal-fired circulating fluidized bed boiler feed component according to claim 1, characterized in that: A lifting chute (17) is provided on one side of the material discharge port (9), a lifting slider (18) is slidably connected inside the lifting chute (17), one end of the lifting slider (18) is rotatably connected to a loosening rod (19), the loosening rod (19) is installed inside the material discharge port (9), and a transmission component is installed at one end of the material distribution roller (7).

6. A coal-fired circulating fluidized bed boiler feed component according to claim 5, characterized in that: The transmission assembly comprises a transmission rod (20) hinged at one end of a lifting slider (18); one end of the frame (1) is rotatably connected to a transmission wheel (21); the transmission wheel (21) is eccentrically hinged to the transmission rod (20); and one end of the material distribution roller (7) is fixedly connected to a driving wheel (22) meshing with the transmission wheel (21).

7. A coal-fired circulating fluidized bed boiler feed component according to claim 6, characterized in that: The diameter of the driving wheel (22) is much larger than that of the transmission wheel (21).

8. A coal-fired circulating fluidized bed boiler feeding component according to claim 5, characterized in that: One end of the loosening rod (19) passes through the lifting slider (18) and is fixedly connected to a flip gear (23); one side of the frame body (1) is fixedly connected to a flip rack (24) meshing with the flip gear (23).

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