Circulating fluidized bed boiler flue gas desulfurization equipment

Abstract

This utility model relates to the technical field of flue gas purification, specifically a flue gas desulfurization device for a circulating fluidized bed boiler, comprising: a boiler, a pretreatment desulfurization component, a water circulation desulfurization component, and a filtration desulfurization component; the water circulation desulfurization component is arranged in multiple layers, which are sequentially distributed between the pretreatment desulfurization component and the filtration desulfurization component; the water circulation desulfurization component includes a water circulation conduit, with its two ends respectively located at both ends of the water circulation desulfurization component for circulating desulfurization; the flue gas is facilitated by the flue gas desulfurization inlet and outlet equipped on the boiler, while the pretreatment desulfurization component can perform preliminary desulfurization after the flue gas enters the boiler, and the introduction of multiple layers of water circulation desulfurization components enhances the desulfurization effect; the water circulation conduit realizes water resource recycling, which is energy-saving and environmentally friendly, with a compact structure, smooth desulfurization, and improves the flue gas treatment capacity and environmental performance of the boiler.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas purification, specifically to a flue gas desulfurization device for a circulating fluidized bed boiler. Background Technology

[0002] Industrial furnace flue gas denitrification aims to protect the environment, curb overcapacity in the industry, and promote technological transformation in the industry.

[0003] Currently, the flue gas from existing industrial boilers, when discharged into the atmosphere without purification treatment, will cause serious air pollution due to the sulfides it contains. In order to reduce the air pollution caused by sulfides, it is necessary to desulfurize the sulfides contained in the boiler flue gas. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a circulating fluidized bed boiler flue gas desulfurization device, which solves the problem that the sulfides contained in the flue gas from existing industrial boilers will cause serious air pollution after being discharged into the atmosphere without purification treatment. In order to reduce the pollution of the atmosphere by sulfides, it is necessary to desulfurize the sulfides contained in the boiler flue gas.

[0005] The technical solution adopted by this utility model is: a circulating fluidized bed boiler flue gas desulfurization equipment, including a boiler, a pretreatment desulfurization component, a water circulation desulfurization component, and a filtration desulfurization component; the boiler includes a flue gas desulfurization inlet and a flue gas desulfurization outlet, the pretreatment desulfurization component is located inside the boiler near the flue gas desulfurization inlet, the filtration desulfurization component is located inside the boiler near the flue gas desulfurization outlet, the water circulation desulfurization component is arranged in multiple layers, and the multiple layers of water circulation desulfurization components are sequentially distributed between the pretreatment desulfurization component and the filtration desulfurization component; the water circulation desulfurization component includes a water circulation conduit, the two ends of which are respectively located at the upper and lower ends of the multiple layers of water circulation desulfurization components to perform circulating desulfurization of the water circulation desulfurization component.

[0006] A further improvement to the above scheme is that multiple feed ports are sequentially arranged on the side of the boiler near the flue gas desulfurization inlet, and the multiple feed ports are used for feeding the pretreatment desulfurization component, the water circulation desulfurization component, and the filtration desulfurization component.

[0007] A further improvement to the above scheme is that a feed cover is movably provided on the feed inlet, and a sealing element is provided between the feed cover and the feed inlet, the sealing element being used to seal when the feed cover is fastened to the feed inlet.

[0008] A further improvement to the above scheme is that the inlet end of the flue gas desulfurization inlet is provided with an inlet quick connector, and the inlet quick connector is provided with an inlet mounting element, which is used for quick connection and fixation of the inlet quick connector.

[0009] A further improvement to the above scheme is that the outlet end of the flue gas desulfurization outlet is provided with an outlet quick connector, and the outlet quick connector is provided with an outlet mounting element, which is used to quickly fix the outlet quick connector.

[0010] A further improvement to the above scheme is that multiple outlet taps are provided on the side of the flue gas desulfurization outlet near the outlet quick connector, and the multiple outlet taps are distributed in a triangular pattern on the outer wall of the flue gas desulfurization outlet.

[0011] A further improvement to the above scheme is that the pretreatment desulfurization component includes a rotary separator, separation fan blades, and a guide ring. The separation fan blades are arranged around the outer periphery of the rotary separator, and the guide ring is located below the rotary separator near the separation fan blades.

[0012] A further improvement to the above scheme is that the water circulation desulfurization component includes a water injection interface and a water injection pipe. Multiple water injection interfaces are provided and are arranged around the outer wall of the boiler. The water injection pipe is provided on the water injection interface. An adjustment element is provided at the interface of the water injection interface, and the adjustment element is used to adjust the size of the water injection interface.

[0013] A further improvement to the above scheme is that an installation bracket is provided near the outer wall of the boiler for the water circulation duct, and a circulation valve is provided near the boiler for the water circulation duct. The circulation valve is used to control the number of water circulation desulfurization cycles of the water circulation desulfurization component.

[0014] A further improvement to the above solution is that the filtration desulfurization component includes a filter plate, and the filter plate is evenly distributed with filter mesh holes.

[0015] The beneficial effects of this utility model are:

[0016] Compared to existing flue gas treatment methods, this invention facilitates flue gas circulation and treatment through the flue gas desulfurization inlet and outlet equipped on the boiler. The pre-treatment desulfurization components allow for initial desulfurization of the flue gas upon entry into the boiler. The introduction of multi-layer water-circulating desulfurization components not only enhances the desulfurization effect but also enables water resource recycling through water circulation pipes, saving energy and protecting the environment. Finally, the filtration desulfurization components further purify the flue gas, ensuring emissions meet standards. The entire device has a compact structure and a smooth desulfurization process, effectively improving the boiler's flue gas treatment capacity and environmental performance. Attached Figure Description

[0017] Figure 1 This is a perspective view of the circulating fluidized bed boiler flue gas desulfurization equipment of this utility model;

[0018] Figure 2 This is a top view of the circulating fluidized bed boiler flue gas desulfurization equipment of this utility model;

[0019] Figure 3 for Figure 2 Sectional view at point AA.

[0020] Explanation of reference numerals in the attached drawings: Boiler 10, Flue gas desulfurization inlet 11, Feed inlet 111, Feed cover 112, Sealing element 113, Inlet quick connector 114, Inlet installation element 115, Flue gas desulfurization outlet 12, Outlet quick connector 121, Outlet installation element 122, Outlet tap 123;

[0021] Pretreatment desulfurization component 20, rotary separator 21, separation fan blades 22, guide ring 23;

[0022] Water circulation desulfurization component 30, water circulation conduit 31, mounting bracket 311, valve 312, water injection interface 32, water injection pipe 33;

[0023] Filter desulfurization component 40, filter plate 41, filter mesh 42. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] like Figure 1-3As shown in the embodiment of this utility model, a circulating fluidized bed boiler flue gas desulfurization device includes: a boiler 10, a pretreatment desulfurization component 20, a water circulation desulfurization component 30, and a filtration desulfurization component 40; the boiler 10 includes a flue gas desulfurization inlet 11 and a flue gas desulfurization outlet 12, the pretreatment desulfurization component 20 is disposed inside the boiler 10 near the flue gas desulfurization inlet 11, the filtration desulfurization component 40 is disposed inside the boiler 10 near the flue gas desulfurization outlet 12, the water circulation desulfurization component 30 is provided in multiple layers, and the multiple layers of the water circulation desulfurization component 30 are sequentially distributed between the pretreatment desulfurization component 20 and the filtration desulfurization component 40; the water circulation desulfurization component 30 includes a water circulation conduit 31, the two ends of the water circulation conduit 31 are respectively disposed at the upper and lower ends of the multiple layers of the water circulation desulfurization component 30, so as to perform circulating desulfurization on the water circulation desulfurization component 30. In this embodiment, the flue gas desulfurization inlet 11 and flue gas desulfurization outlet 12 equipped in the boiler 10 facilitate the flow and treatment of flue gas. The pretreatment desulfurization component 20 enables preliminary desulfurization of flue gas after it enters the boiler 10. The introduction of the multi-layer water circulation desulfurization component 30 not only enhances the desulfurization effect but also realizes the recycling of water resources through the water circulation pipe 31, which is energy-saving and environmentally friendly. Finally, the filter desulfurization component 40 further purifies the flue gas to ensure that the emissions meet the standards. The entire equipment has a compact structure and a smooth desulfurization process, which effectively improves the flue gas treatment capacity and environmental performance of the boiler 10.

[0028] like Figure 1 As shown, the boiler 10 has multiple feed inlets 111 arranged sequentially on the side near the flue gas desulfurization inlet 11. These feed inlets 111 are used to feed materials into the pretreatment desulfurization assembly 20, the water-circulating desulfurization assembly 30, and the filtration desulfurization assembly 40. In this embodiment, the feed inlets 111 enable efficient and orderly material input, optimize the desulfurization process, and ensure that the desulfurization assembly can receive and process desulfurizing agents or other necessary materials as needed. This effectively improves desulfurization efficiency and stability while facilitating operation and maintenance.

[0029] A feed cover 112 is movably mounted on the feed inlet 111. A sealing element 113 is provided between the feed cover 112 and the feed inlet 111. The sealing element 113 is used to seal the feed inlet 111 when the feed cover 112 is fastened to it. In this embodiment, when the feed cover 112 is tightly fastened to the feed inlet 111, the sealing element 113 effectively ensures the sealing performance at the interface, improves the overall airtightness of the equipment, prevents flue gas leakage during the desulfurization process, and also ensures desulfurization efficiency and the safety of the working environment.

[0030] The inlet end of the flue gas desulfurization inlet 11 is equipped with an inlet quick connector 114, and an inlet mounting element 115 is provided on the inlet quick connector 114. The inlet mounting element 115 is used for quick connection and fixation of the inlet quick connector 114. In this embodiment, the inlet mounting element 115 configured on the inlet quick connector 114 is specifically designed for quick connection and fixation, ensuring the simplicity and stability of the connection process, effectively simplifying the installation steps, reducing installation time, and ensuring the efficient operation of the desulfurization system.

[0031] The flue gas desulfurization outlet 12 is equipped with an outlet quick connector 121 at its outlet end. An outlet mounting element 122 is mounted on the outlet quick connector 121 for quick-connect fixation. In this embodiment, the dedicated outlet mounting element 122 on the outlet quick connector 121 ensures rapid and secure fixing of the quick connector, simplifying the installation process and improving work efficiency.

[0032] Multiple outlet taps 123 are provided on the side of the flue gas desulfurization outlet 12 near the outlet quick connector 121, and the multiple outlet taps 123 are triangularly distributed on the outer wall of the flue gas desulfurization outlet 12. In this embodiment, through

[0033] like Figures 2 to 3 As shown, the pretreatment desulfurization assembly 20 includes a rotary separator 21, separation blades 22, and a guide ring 23. The separation blades 22 are arranged around the outer periphery of the rotary separator 21, and the guide ring 23 is positioned below the rotary separator 21 near the separation blades 22. In this embodiment, high-speed rotation achieves effective separation of flue gas. The separation blades 22, arranged around the outer periphery of the rotary separator 21, enhance the tangential velocity of the flue gas, further improving separation efficiency. The guide ring 23 optimizes the flue gas flow path, reduces eddies and energy loss, and ensures that the flue gas smoothly enters the next treatment stage.

[0034] The water-circulating desulfurization component 30 includes multiple water injection ports 32 and water injection pipes 33. These ports are arranged around the outer wall of the boiler 10. The water injection pipes 33 are positioned on the water injection ports 32. An adjusting element 34 is located at the interface of each water injection port 32, used to adjust the size of the port. In this embodiment, by arranging multiple water injection ports 32 around the outer wall of the boiler 10, multi-point uniform water injection is achieved, effectively improving desulfurization efficiency. Furthermore, the adjusting element 34 at each water injection port 32 allows for flexible adjustment of the port size, thereby precisely controlling the water injection volume, avoiding water waste, and ensuring the stability and efficiency of the desulfurization process.

[0035] A mounting bracket 311 is provided near the outer wall of the boiler 10 for the water circulation conduit 31. A circulation valve 312 is also provided near the boiler 10 for the water circulation conduit 31. The circulation valve 312 is used to control the number of water circulation desulfurization cycles of the water circulation desulfurization component 30. In this embodiment, by providing a mounting bracket 311 near the outer wall of the boiler 10 for the water circulation conduit 31, a stable installation of the conduit is achieved, improving the overall stability of the equipment. The addition of a circulation valve 312 near the boiler 10 for the water circulation conduit 31 effectively controls the number of water circulation desulfurization cycles of the water circulation desulfurization component 30, making the desulfurization process more flexible and efficient.

[0036] The filtration desulfurization assembly 40 includes a filter plate 41, on which filter mesh 42 is evenly distributed. In this embodiment, the filter plate 41 with evenly distributed filter mesh 42 effectively improves the efficiency of flue gas desulfurization. The mesh design on the filter plate 41 not only increases the contact area between the flue gas and the desulfurizing agent, promoting the full progress of the desulfurization reaction, but also ensures smooth passage of flue gas and reduces resistance.

[0037] A circulating fluidized bed boiler flue gas desulfurization device includes: a boiler 10, a pretreatment desulfurization component 20, a water circulation desulfurization component 30, and a filtration desulfurization component 40; the boiler 10 includes a flue gas desulfurization inlet 11 and a flue gas desulfurization outlet 12, the pretreatment desulfurization component 20 is disposed inside the boiler 10 near the flue gas desulfurization inlet 11, the filtration desulfurization component 40 is disposed inside the boiler 10 near the flue gas desulfurization outlet 12, the water circulation desulfurization component 30 is provided in multiple layers, and the multiple layers of the water circulation desulfurization component 30 are sequentially distributed between the pretreatment desulfurization component 20 and the filtration desulfurization component 40; the water circulation desulfurization component 30 includes a water circulation conduit 31, the two ends of the water circulation conduit 31 are respectively disposed at the upper and lower ends of the multiple layers of the water circulation desulfurization component 30, so as to perform circulating desulfurization of the water circulation desulfurization component 30. In this embodiment, the flue gas desulfurization inlet 11 and flue gas desulfurization outlet 12 equipped in the boiler 10 facilitate the flow and treatment of flue gas. The pretreatment desulfurization component 20 enables preliminary desulfurization of flue gas after it enters the boiler 10. The introduction of the multi-layer water circulation desulfurization component 30 not only enhances the desulfurization effect but also realizes the recycling of water resources through the water circulation pipe 31, which is energy-saving and environmentally friendly. Finally, the filter desulfurization component 40 further purifies the flue gas to ensure that the emissions meet the standards. The entire equipment has a compact structure and a smooth desulfurization process, which effectively improves the flue gas treatment capacity and environmental performance of the boiler 10.

[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A circulating fluidized bed boiler flue gas desulfurization device, characterized in that, include: The system comprises a boiler, a pretreatment desulfurization assembly, a water-circulating desulfurization assembly, and a filtration desulfurization assembly. The boiler includes a flue gas desulfurization inlet and a flue gas desulfurization outlet. The pretreatment desulfurization assembly is located inside the boiler near the flue gas desulfurization inlet, and the filtration desulfurization assembly is located inside the boiler near the flue gas desulfurization outlet. The water-circulating desulfurization assembly consists of multiple layers, which are sequentially distributed between the pretreatment desulfurization assembly and the filtration desulfurization assembly. The water-circulating desulfurization assembly includes a water circulation conduit, with its two ends respectively located at the upper and lower ends of the multiple layers of the water-circulating desulfurization assembly for circulating desulfurization.

2. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 1, characterized in that: The boiler has multiple feed ports arranged sequentially on the side near the flue gas desulfurization inlet. These feed ports are used to feed the pretreatment desulfurization components, water circulation desulfurization components, and filtration desulfurization components.

3. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 2, characterized in that: A feed cover is movably provided on the feed inlet, and a sealing element is provided between the feed cover and the feed inlet. The sealing element is used to seal the feed inlet when the feed cover is fastened to the feed inlet.

4. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 3, characterized in that: The inlet end of the flue gas desulfurization inlet is equipped with an inlet quick connector, and the inlet quick connector is equipped with an inlet mounting element, which is used to quickly fix the inlet quick connector.

5. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 4, characterized in that: The flue gas desulfurization outlet is equipped with an outlet quick connector at its outlet end, and an outlet mounting element is provided on the outlet quick connector for quick connection and fixation.

6. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 5, characterized in that: The flue gas desulfurization outlet is provided with multiple outlet taps on the side near the outlet quick connector, and the multiple outlet taps are distributed in a triangular pattern on the outer wall of the flue gas desulfurization outlet.

7. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 1, characterized in that: The pretreatment desulfurization assembly includes a rotary separator, separation blades, and a guide ring. The separation blades are arranged around the outer periphery of the rotary separator, and the guide ring is located below the rotary separator near the separation blades.

8. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 1, characterized in that: The water circulation desulfurization component includes a water injection interface and a water injection pipe. Multiple water injection interfaces are provided and are arranged around the outer wall of the boiler. The water injection pipe is provided on the water injection interface. An adjustment element is provided at the interface of the water injection interface. The adjustment element is used to adjust the size of the water injection interface.

9. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 8, characterized in that: The water circulation duct is equipped with an installation bracket near the outer wall of the boiler, and a circulation valve is installed near the boiler. The circulation valve is used to control the number of water circulation desulfurization cycles of the water circulation desulfurization component.

10. The circulating fluidized bed boiler flue gas desulfurization equipment according to claim 1, characterized in that: The filtration and desulfurization assembly includes a filter plate, on which filter mesh holes are evenly distributed.

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