Ultralow-emission circulating fluidized bed boiler

Abstract

The utility model discloses an ultra-low emission circulating fluidized bed boiler, and particularly relates to the technical field of circulating fluidized bed boilers, the ultra-low emission circulating fluidized bed boiler comprises a boiler body, a supporting plate is arranged at the top of the boiler body, and a processing assembly is arranged at the top of the supporting plate; wherein the treatment assembly comprises a treatment box arranged at the top of the supporting plate, a connecting pipe is arranged between the bottom of the treatment box and the furnace body in a penetrating mode, an exhaust pipe is arranged at the top of the treatment box, two containing frames are arranged in the treatment box, frames are arranged at the tops of the two containing frames, a first filter plate is arranged in one frame, and an activated carbon adsorption plate is arranged in the other frame. According to the utility model, the flue gas is discharged after being treated, so that not only can the environmental pollution be reduced, but also the low-emission effect can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of circulating fluidized bed boilers, and more specifically, to an ultra-low emission circulating fluidized bed boiler. Background Art

[0002] Circulating fluidized bed boiler is the most industrialized clean coal combustion technology. Circulating fluidized bed boiler adopts fluidized combustion. Its main structure includes two parts: combustion chamber and circulating furnace. When circulating fluidized bed boiler burns materials, it will produce a large amount of smoke and dust inside. There are also residual odor and impurities in the smoke. If it is directly discharged, it will cause environmental pollution.

[0003] After searching, a Chinese patent with publication number CN210320007U discloses a circulating fluidized bed boiler. The advantage of this structure is that the feed rate of the combustion raw materials can be determined by the regulating function of the flow control valve, which helps to add appropriate combustion raw materials during the combustion process and improve the utilization rate of the combustion raw materials. The rotating cross plate can stir the raw materials and increase the gaps between the combustion raw materials, which is conducive to the introduction of oxygen, thereby making the combustion raw materials fully burn and improving the combustion heat release rate.

[0004] However, when this structure is actually used, since during the combustion of fuel, the gas produced by the fuel is prone to residual odor and impurities remain inside the gas, directly discharging the gas into the environment will not only cause environmental pollution, but also easily lead to harm by inhalation by the human body. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, the utility model provides an ultra-low emission circulating fluidized bed boiler to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an ultra-low emission circulating fluidized bed boiler, comprising a furnace body, a support plate is provided on the top of the furnace body, and a processing assembly is provided on the top of the support plate; the processing assembly comprises a processing box arranged on the top of the support plate, a connecting pipe is provided between the bottom of the processing box and the furnace body, an exhaust pipe is provided on the top of the processing box, two placement frames are provided inside the processing box, and frames are provided on the top of the two placement frames, one of the frames is provided with a first filter plate, and the other frame is provided with an activated carbon adsorption plate, two grooves are provided on the surface of the processing box, one side of the two frames passes through the grooves and extends to one side of the processing box, one side of the two frames is provided with a baffle, and two support rods are provided at the bottom of the processing box and on both sides of the connecting pipe, and the bottoms of the two support rods are connected to the surface of the support plate, which is beneficial to the treatment of flue gas.

[0007] Preferably, a fan is provided on one side of the furnace body, a fixing frame is provided at the bottom of the fan and located on one side of the furnace body, and a conveying assembly is provided between the fan and the furnace body; the conveying assembly includes a first conveying pipe arranged on one side of the fan, one end of the first conveying pipe is connected with the furnace body, second conveying pipes are provided on both sides of the first conveying pipe, conveying frames are provided on both sides of the furnace body, conveying grooves are provided on the surface of both sides of the furnace body and located inside the conveying frames, a movable groove is provided on one side of the two conveying grooves, a second filter plate is provided inside the two conveying grooves, a movable plate is provided on one side of the two second filter plates and located inside the movable groove, two first electric telescopic rods are provided on the top of the support plate, the output ends of the two first electric telescopic rods both penetrate the surface of the support plate and extend to the inside of the movable groove and are connected to the surface of the movable plate, and valves are provided on the outsides of the first conveying pipe and the second conveying pipe, which is conducive to multi-directional blowing inside the furnace body.

[0008] Preferably, a placement groove is provided on the bottom surface of the support plate, a cleaning frame is provided inside the placement groove, a second electric telescopic rod is provided on the top of the support plate and on one side of the first electric telescopic rod, and the output ends of the two second electric telescopic rods both penetrate the surface of the support plate and are connected to the surface of the cleaning frame, which is conducive to cleaning the inside of the furnace body.

[0009] Preferably, a motor is provided on the top of the support plate and located on one side of the processing box, a rotating rod is provided at the output end of the motor and located inside the furnace body, and a plurality of mixing rods are provided on the outside of the rotating rod, which is beneficial to improving the efficiency of material combustion.

[0010] Preferably, a discharge port is provided on one side of the furnace body, a discharge frame is provided outside the discharge port and located on one side of the furnace body, and a cover plate is connected to one side of the discharge frame through a hinge, which is conducive to the discharge of dust.

[0011] Technical effects and advantages of the utility model:

[0012] 1. By setting up a processing component, the flue gas generated inside the furnace body enters the processing box through a connecting pipe, passes through the first filter plate inside one of the frames, and can filter the impurities inside the flue gas. Then, it passes through the activated carbon filter plate inside another frame, and can filter the odor inside the flue gas. The flue gas can be treated before being discharged, which can avoid flue gas pollution of the environment. By pulling the baffle, the first filter plate or the activated carbon adsorption plate is driven to move out from the inside of the slot. Because the upper and lower surfaces of the first filter plate are in contact with the inner wall of the slot when moving, the impurities adhering to the first filter plate can be removed. The first filter plate and the activated carbon adsorption plate can be replaced and cleaned. By treating the flue gas, the emission of odor and impurities into the environment can be reduced, and low emissions can be achieved;

[0013] 2. By setting up the conveying component, starting the fan, and opening the valve on the outside of the first conveying pipe, air can be blown into the furnace body, and then the first electric telescopic rod on the top of the support plate is started to drive the movable plate to move along the movable groove, so that the conveying groove can be opened, and then the valve on the second conveying pipe is opened to allow the wind to increase the conveying frame and enter the furnace body, thereby achieving blowing on multiple sides of the furnace body, which can improve the combustion efficiency inside the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a side structural schematic diagram of the utility model.

[0016] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the processing component of the utility model.

[0018] Figure 5 This is a schematic diagram of the processing box and the support plate structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. furnace body; 2. support plate; 3. treatment box; 4. exhaust pipe; 5. frame; 6. first filter plate; 7. activated carbon adsorption plate; 8. baffle; 9. fan; 10. first conveying pipe; 11. second conveying pipe; 12. conveying frame; 13. second filter plate; 14. moving plate; 15. first electric telescopic rod; 16. cleaning frame; 17. second electric telescopic rod; 18. motor; 19. rotating rod; 20. mixing rod; 21. discharge frame; 22. support 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] As attached Figure 1-5An ultra-low emission circulating fluidized bed boiler shown includes a furnace body 1, a support plate 2 is provided on the top of the furnace body 1, and a processing component is provided on the top of the support plate 2; the processing component includes a processing box 3 arranged on the top of the support plate 2, a connecting pipe is provided between the bottom of the processing box 3 and the furnace body 1, an exhaust pipe 4 is provided on the top of the processing box 3, two placement frames are provided inside the processing box 3, and frames 5 are provided on the top of the two placement frames, one of the frames 5 is provided with a first filter plate 6, and the other frame 5 is provided with an activated carbon adsorption plate 7, two grooves are provided on the surface of the processing box 3, one side of the two frames 5 passes through the grooves and extends to one side of the processing box 3, one side of the two frames 5 is provided with a baffle 8, two support rods 22 are provided at the bottom of the processing box 3 and on both sides of the connecting pipe, and the bottoms of the two support rods 22 are connected to the surface of the support plate 2.

[0022] As attached Figure 2 As shown, a fan 9 is provided on one side of the furnace body 1, a fixing frame is provided at the bottom of the fan 9 and located on one side of the furnace body 1, and a conveying assembly is provided between the fan 9 and the furnace body 1; the conveying assembly includes a first conveying pipe 10 arranged on one side of the fan 9, one end of the first conveying pipe 10 is connected with the furnace body 1, second conveying pipes 11 are provided on both sides of the first conveying pipe 10, and conveying frames 12 are provided on both sides of the furnace body 1. Conveying grooves are provided on the surfaces of both sides of the furnace body 1 and located inside the conveying frames 12, and a mobile groove is provided on one side of the two conveying grooves. A second filter plate 13 is provided inside the two conveying grooves, and a mobile plate 14 is provided on one side of the two second filter plates 13 and located inside the mobile groove. Two first electric telescopic rods 15 are provided on the top of the support plate 2, and the output ends of the two first electric telescopic rods 15 penetrate the surface of the support plate 2 and extend to the inside of the mobile groove and are connected to the surface of the mobile plate 14. Valves are provided on the outsides of the first conveying pipe 10 and the second conveying pipe 11, and multi-angle blowing can be achieved inside the furnace body 1 by opening the valves on the outsides of the first conveying pipe 10 and the second conveying pipe 11.

[0023] As attached Figure 5 As shown, a placement groove is provided on the bottom surface of the support plate 2, and a cleaning frame 16 is provided inside the placement groove. A second electric telescopic rod 17 is provided on the top of the support plate 2 and on one side of the first electric telescopic rod 15. The output ends of the two second electric telescopic rods 17 penetrate the surface of the support plate 2 and are connected to the surface of the cleaning frame 16. The second electric telescopic rod 17 drives the cleaning frame 16 to move downward along the inner wall of the furnace body 1, so as to scrape the inner wall of the furnace body 1.

[0024] As attached Figure 3 As shown, a motor 18 is provided on the top of the support plate 2 and located on one side of the processing box 3, a rotating rod 19 is provided at the output end of the motor 18 and located inside the furnace body 1, and a plurality of mixing rods 20 are provided outside the rotating rod 19 to stir the material and prevent the material from accumulating inside the furnace body 1.

[0025] As attached Figure 3As shown, a discharge port is provided on one side of the furnace body 1, and a discharge frame 21 is provided outside the discharge port and on one side of the furnace body 1. A cover plate is connected to one side of the discharge frame 21 through a hinge, and dust generated after the material is burned can be discharged by opening the cover plate.

[0026] Working principle of the utility model: when burning materials, start the motor 18 to drive the rotating rod 19 and the mixing rod 20 to rotate, so as to stir the materials. By starting the fan 9 and then opening the valve on the first conveying pipe 10, the inside of the filter cartridge is blown, and then the mixing rod 20 is used to fully burn the materials.

[0027] When the blowing position inside the furnace body 1 needs to be changed, the first electric telescopic rod 15 on the support plate 2 is started to drive the movable plate 14 to move upward along the movable groove, and the conveying groove on one side of the second filter plate 13 is opened, and then the valve on the second conveying pipe 11 is opened to allow the air to enter the conveying frame 12 and the furnace body 1. The first conveying pipe 10 and the second conveying pipe 11 are opened at the same time, so that the furnace body 1 can be blown from multiple sides. By closing the first conveying pipe 10 and opening the two second conveying pipes 11, the furnace body 1 can be blown from both sides, which can not only change the blowing position, but also improve the combustion efficiency inside the furnace body 1.

[0028] Because the material will generate smoke, the smoke enters the processing box 3 through the connecting pipe on the top of the support plate 2. The impurities in the smoke can be filtered through the first filter plate 6 that purifies the inside. The odor in the smoke can be fixed through the activated carbon adsorption plate 7 inside the other frame 5. The smoke can be treated before being discharged, which can reduce the pollution of the smoke to the environment and achieve a low emission effect. The utility model can blow air to multiple sides of the inside of the furnace body 1 through the first conveying pipe 10 and the second conveying pipe 11, and the smoke can be treated through the first filter plate 6 and the activated carbon adsorption plate 7.

[0029] Finally: The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An ultra-low emission circulating fluidized bed boiler, comprising a furnace body (1), characterized in that: A support plate (2) is provided on the top of the furnace body (1), and a processing component is provided on the top of the support plate (2); The processing assembly comprises a processing box (3) arranged on the top of the support plate (2); a connecting pipe is provided between the bottom of the processing box (3) and the furnace body (1); an exhaust pipe (4) is provided on the top of the processing box (3); two placement frames are provided inside the processing box (3); frames (5) are provided on the tops of the two placement frames; a first filter plate (6) is provided inside one of the frames (5); an activated carbon adsorption plate (7) is provided inside the other frame (5); two grooves are provided on the surface of the processing box (3); one side of the two frames (5) passes through the grooves and extends to one side of the processing box (3); and a baffle (8) is provided on one side of the two frames (5).

2. The ultra-low emission circulating fluidized bed boiler according to claim 1, characterized in that: A fan (9) is provided on one side of the furnace body (1), a fixing frame is provided at the bottom of the fan (9) and located on one side of the furnace body (1), and a conveying component is provided between the fan (9) and the furnace body (1); The conveying assembly comprises a first conveying pipe (10) arranged on one side of the fan (9), one end of the first conveying pipe (10) is connected to the furnace body (1), second conveying pipes (11) are arranged on both sides of the first conveying pipe (10), conveying frames (12) are arranged on both sides of the furnace body (1), conveying grooves are arranged on the surfaces of both sides of the furnace body (1) and located inside the conveying frames (12), one side of the two conveying grooves is arranged with a movable groove, the two conveying grooves are arranged inside a second filter plate (13), one side of the two second filter plates (13) and located inside the movable groove is arranged with a movable plate (14), the top of the support plate (2) is provided with two first electric telescopic rods (15), the output ends of the two first electric telescopic rods (15) penetrate the surface of the support plate (2) and extend to the inside of the movable groove and are connected to the surface of the movable plate (14), and valves are arranged on the outside of the first conveying pipe (10) and the second conveying pipe (11).

3. The ultra-low emission circulating fluidized bed boiler according to claim 1, characterized in that: The bottom surface of the support plate (2) is provided with a placement groove, a cleaning frame (16) is provided inside the placement groove, and a second electric telescopic rod (17) is provided on the top of the support plate (2) and on one side of the first electric telescopic rod (15), and the output ends of the two second electric telescopic rods (17) penetrate the surface of the support plate (2) and are connected to the surface of the cleaning frame (16).

4. The ultra-low emission circulating fluidized bed boiler according to claim 1, characterized in that: A motor (18) is provided on the top of the support plate (2) and located on one side of the processing box (3); a rotating rod (19) is provided at the output end of the motor (18) and located inside the furnace body (1); and a plurality of mixing rods (20) are provided outside the rotating rod (19).

5. The ultra-low emission circulating fluidized bed boiler according to claim 1, characterized in that: A discharge port is provided on one side of the furnace body (1), a discharge frame (21) is provided outside the discharge port and located on one side of the furnace body (1), and a cover plate is connected to one side of the discharge frame (21) via a hinge.

6. The ultra-low emission circulating fluidized bed boiler according to claim 1, characterized in that: Two support rods (22) are provided at the bottom of the processing box (3) and on both sides of the connecting pipe, and the bottoms of the two support rods (22) are connected to the surface of the support plate (2).

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