Environment-friendly flue gas treatment device for boiler
By designing a multi-layered filter and cleaning components for flue gas environmental protection treatment, the problems of difficult filter cleaning and poor filtration effect have been solved, achieving efficient operation of the equipment and efficient purification of flue gas, thus meeting environmental protection standards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional flue gas treatment devices are difficult and time-consuming to clean their filters, which affects production efficiency, results in poor filtration, and makes it difficult to meet environmental standards.
Design a flue gas environmental protection treatment device including a treatment box, replacement components and cleaning components. It adopts a combination of primary filter, medium-efficiency filter and high-efficiency filter. The filter screen is replaced by a hydraulic rod pushing a movable plate, and the filter screen dust is cleaned by reverse airflow.
This allows the equipment to operate continuously during the filter cleaning process, improving production efficiency, and achieving high air quality standards through a multi-layer filter system, effectively reducing pollution.
Smart Images
Figure CN224086370U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flue gas treatment technology, specifically to an environmentally friendly flue gas treatment device for boilers. Background Technology
[0002] In industrial production, boilers, as common thermal energy equipment, are widely used in many fields such as power, chemical industry, and metallurgy. However, during the operation of boilers, a large amount of flue gas containing various pollutants is generated, such as large dust particles, fine particulate matter, harmful gases, and heavy metal particles. If these pollutants are discharged directly into the atmosphere without effective treatment, they will cause serious harm to the environment and human health.
[0003] Traditional flue gas treatment devices have many problems in practical applications. On the one hand, the filter screen is difficult to clean, the cleaning process is cumbersome and time-consuming, causing the equipment to be unable to operate normally during the cleaning period, affecting production efficiency. On the other hand, the filtration effect of some devices is not good, making it difficult to meet increasingly stringent environmental protection standards.
[0004] Therefore, this utility model provides an environmental protection treatment device for flue gas in boilers to solve the above problems. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides an environmental protection treatment device for flue gas of boilers, which solves the above problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a flue gas environmental protection treatment device for boilers, comprising a treatment box, a replacement component inside the treatment box, and a cleaning component outside the treatment box, the cleaning component comprising a cleaning box fixedly installed on the left and right sides of the treatment box, the replacement component comprising a movable plate inserted into the side wall of the treatment box, the movable plate having a groove inside, and a primary filter, a medium-efficiency filter, and a high-efficiency filter fixedly installed inside the groove.
[0007] Preferably, the processing box has three movable plates inserted inside, and each movable plate has two grooves inside. The primary filter is located inside the bottom groove, the secondary filter is located inside the middle groove, and the high-efficiency filter is located inside the top groove.
[0008] Preferably, an air outlet pipe is fixedly installed on the top of the treatment box, an air inlet pipe is fixedly installed on the bottom side of the treatment box, the connection between the treatment box and the air outlet pipe is located above the high-efficiency filter screen, and the connection between the air inlet pipe and the treatment box is located below the primary filter screen.
[0009] Preferably, a first solenoid valve is fixedly installed at the bottom of the processing box, the bottom of the processing box is conical, and sealing rubber gaskets are fixedly installed on both the upper and lower surfaces of the movable plate, with the sealing rubber gaskets fitting at the connection between the movable plate and the processing box.
[0010] Preferably, a hydraulic rod is fixedly installed on the outside of the cleaning box, and the output end of the hydraulic rod movably penetrates the side wall of the cleaning box and is fixedly connected to the internal movable plate.
[0011] Preferably, a top box is fixedly installed on the top of the cleaning box, a cleaning pipe is fixedly installed on the top of the top box, a through hole is opened on the bottom wall of the top box, the cleaning box and the top box are connected through the through hole, the bottom of the cleaning box is conical, and a second solenoid valve is fixedly installed on the bottom of the cleaning box.
[0012] Beneficial effects
[0013] This invention provides an environmentally friendly flue gas treatment device for boilers. Compared with the prior art, it has the following advantages:
[0014] 1. This flue gas environmental protection treatment device for boilers, by setting up replacement and cleaning components, allows for filter cleaning. When the filter screen needs cleaning, a hydraulic rod can be used to move a movable plate, pushing a spare filter screen into the treatment box for continued operation. Used filter screens enter the cleaning box. Inside the cleaning box, an external air pump blows air backwards through the cleaning pipe and through-holes onto the filter screen. Opening the second solenoid valve allows dust to be discharged, enabling continuous operation of the equipment during the filter screen cleaning process and improving production efficiency.
[0015] 2. This flue gas environmental protection treatment device for boilers is equipped with a pre-filter, a medium-efficiency filter, and a high-efficiency filter inside the treatment box. Different filters target pollutants and harmful substances of different particle sizes. The pre-filter removes large particles, reducing the load on subsequent filters; the medium-efficiency filter further filters smaller particles and some harmful gases; the high-efficiency filter achieves deep purification of extremely fine particles and difficult-to-remove harmful substances, enabling the purified flue gas to meet higher air quality standards and effectively reducing environmental pollution. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a perspective view of the external structure of this utility model;
[0018] Figure 2 This is a three-dimensional view of the back structure of this utility model;
[0019] Figure 3 This is a three-dimensional sectional view of the internal structure of this utility model;
[0020] Figure 4 This is a three-dimensional view of the bottom structure of this utility model.
[0021] In the diagram: 1. Processing box; 2. Replacement component; 21. Hydraulic rod; 22. Movable plate; 23. Groove; 24. Primary filter; 25. Secondary filter; 26. High-efficiency filter; 3. Cleaning component; 31. Cleaning box; 32. Top box; 33. Cleaning pipe; 34. Through hole; 35. Second solenoid valve; 4. Air outlet pipe; 5. First solenoid valve; 6. Air inlet pipe. Detailed Implementation
[0022] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0023] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] Reference Figures 1 to 4 This application provides an environmental protection device for flue gas treatment of boilers, including a treatment box 1. The treatment box 1 is equipped with a replacement component 2 inside and a cleaning component 3 is equipped on the outside of the treatment box 1. The cleaning component 3 includes a cleaning box 31, which is fixedly installed on the left and right sides of the treatment box 1. The replacement component 2 includes a movable plate 22, which is inserted into the side wall of the treatment box 1. The movable plate 22 has a groove 23 inside, and a primary filter 24, a medium-efficiency filter 25 and a high-efficiency filter 26 are fixedly installed inside the groove 23.
[0025] The treatment box 1 has three movable plates 22 inserted inside. Each movable plate 22 has two grooves 23 inside. The primary filter 24 is located inside the bottom groove 23, the medium-efficiency filter 25 is located inside the middle groove 23, and the high-efficiency filter 26 is located inside the top groove 23. An air outlet pipe 4 is fixedly installed on the top of the treatment box 1, and an air inlet pipe 6 is fixedly installed on the bottom side of the treatment box 1. The connection between the treatment box 1 and the air outlet pipe 4 is located above the high-efficiency filter 26, and the connection between the air inlet pipe 6 and the treatment box 1 is located below the primary filter 24. A first solenoid valve 5 is fixedly installed on the bottom of the treatment box 1. The bottom of the treatment box 1 is conical. Sealing rubber gaskets are fixedly installed on both the upper and lower surfaces of the movable plates 22, and the sealing rubber gaskets are attached to the connection between the movable plates 22 and the treatment box 1. A hydraulic rod 21 is fixedly installed on the outside of the cleaning box 31. The output end of the hydraulic rod 21 moves through the side wall of the cleaning box 31 and is fixedly connected to the internal movable plate 22.
[0026] A top box 32 is fixedly installed on the top of the cleaning box 31, and a cleaning pipe 33 is fixedly installed on the top of the top box 32. A through hole 34 is opened on the bottom wall of the top box 32, and the cleaning box 31 and the top box 32 are connected through the through hole 34. The bottom of the cleaning box 31 is conical, and a second solenoid valve 35 is fixedly installed on the bottom of the cleaning box 31.
[0027] In this embodiment, during use, the inlet pipe 6 is connected to the boiler's flue gas exhaust pipe. The flue gas enters the treatment box 1 through the inlet pipe 6. Large particulate impurities in the flue gas settle to the bottom of the treatment box 1. The settled impurities can be cleaned by opening the first solenoid valve 5. The flue gas is purified by the primary filter 24, the medium-efficiency process filter 25, and the high-efficiency filter 26 inside the treatment box 1. After purification, the flue gas is discharged through the top outlet pipe 4. By activating the hydraulic rod 21 at the corresponding position, the hydraulic rod 21 pushes the movable plate 22 to move. The movement of the movable plate 22 can open the outer spare... The filter screen is pushed into the processing box 1 to continue filtering the flue gas. The used filter screen will enter the corresponding cleaning box 31. The cleaning pipe 33 is connected to an air pump. The air pump drives high-speed air through the cleaning pipe 33 into the top box 32. The air diffuses into the cleaning box 31 through multiple through holes 34 below. The air passes through the filter screen in reverse to clean the dust adsorbed on the filter screen. When cleaning, the second solenoid valve 35 is opened to discharge the cleaned dust. This achieves the effect of convenient filter screen cleaning and normal operation of the equipment when cleaning the filter screen.
[0028] Primary filter 24: mainly filters large particles, such as dust, wood chips, fibers and other larger solid impurities, to perform preliminary purification of flue gas and reduce the load on subsequent filters. Materials used include non-woven fabric, nylon mesh and metal wire mesh.
[0029] Medium-efficiency filter 25: Further filters smaller particles and some harmful gases, removes fine dust and smoke particles remaining after primary filtration, and improves filtration effect. The material is made of glass fiber and synthetic fiber.
[0030] High-efficiency filter 26: Primarily targets extremely fine particulate matter and some difficult-to-remove harmful substances, such as PM2.5, some heavy metal particles, bacteria, and viruses, to achieve deep purification of flue gas and reach higher air quality standards.
[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0032] Working Principle: During operation, the inlet pipe 6 is connected to the boiler's flue gas exhaust pipe, and the flue gas enters the treatment chamber 1 through the inlet pipe 6. Because the bottom of the treatment chamber 1 is conical, large particles of impurities in the flue gas settle to the bottom of the treatment chamber 1. The first solenoid valve 5 can be opened to remove the settled impurities. Subsequently, the flue gas passes sequentially through the primary filter 24, the medium-efficiency filter 25, and the high-efficiency filter 26. The primary filter 24 mainly filters large particles of dust, wood chips, fibers, and other solid impurities, performing preliminary purification of the flue gas. The medium-efficiency filter 25 further removes fine dust and smoke particles remaining after the primary filter. The high-efficiency filter 26 performs deep purification for extremely fine particles and some difficult-to-remove harmful substances, such as PM2.5, some heavy metal particles, bacteria, and viruses. The purified flue gas is discharged through the top outlet pipe 4. When the filter screen needs to be replaced, activate the hydraulic rod 21 at the corresponding position. The hydraulic rod 21 pushes the movable plate 22 to move, and the movable plate 22 pushes the spare filter screen on the outside into the processing box 1 to continue filtering the flue gas. The used filter screen will enter the corresponding cleaning box 31. The cleaning pipe 33 is connected to an air pump. The air pump sends high-speed air through the cleaning pipe 33 into the top box 32, and diffuses into the cleaning box 31 through multiple through holes 34 at the bottom. The air flows in reverse through the filter screen to clean the dust adsorbed on the filter screen. During cleaning, opening the second solenoid valve 35 will discharge the cleaned dust.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flue gas environmental protection treatment device for boilers, comprising a treatment box (1), characterized in that: The processing box (1) is equipped with a replacement component (2) inside, and a cleaning component (3) is provided on the outside of the processing box (1). The cleaning component (3) includes a cleaning box (31), which is fixedly installed on the left and right sides of the processing box (1). The replacement component (2) includes a movable plate (22), which is inserted into the side wall of the processing box (1). The movable plate (22) has a groove (23) inside, and a primary filter (24), a medium-efficiency filter (25), and a high-efficiency filter (26) are fixedly installed inside the groove (23).
2. The flue gas environmental protection treatment device for boilers according to claim 1, characterized in that: The processing box (1) has three movable plates (22) inserted inside. Each movable plate (22) has two grooves (23) inside. The primary filter (24) is located inside the bottom groove (23), the medium-efficiency filter (25) is located inside the middle groove (23), and the high-efficiency filter (26) is located inside the top groove (23).
3. The flue gas environmental protection treatment device for boilers according to claim 2, characterized in that: An air outlet pipe (4) is fixedly installed on the top of the treatment box (1), and an air inlet pipe (6) is fixedly installed on the bottom side of the treatment box (1). The connection between the treatment box (1) and the air outlet pipe (4) is located above the high-efficiency filter screen (26), and the connection between the air inlet pipe (6) and the treatment box (1) is located below the primary filter screen (24).
4. The flue gas environmental protection treatment device for boilers according to claim 3, characterized in that: The bottom of the processing box (1) is fixedly installed with a first solenoid valve (5). The bottom of the processing box (1) is conical. Sealing rubber gaskets are fixedly installed on both the upper and lower surfaces of the movable plate (22). The sealing rubber gaskets are attached to the connection between the movable plate (22) and the processing box (1).
5. The flue gas environmental protection treatment device for boilers according to claim 1, characterized in that: A hydraulic rod (21) is fixedly installed on the outside of the cleaning box (31). The output end of the hydraulic rod (21) movably passes through the side wall of the cleaning box (31) and is fixedly connected to the internal movable plate (22).
6. The flue gas environmental protection treatment device for boilers according to claim 1, characterized in that: A top box (32) is fixedly installed on the top of the cleaning box (31), and a cleaning pipe (33) is fixedly installed on the top of the top box (32). A through hole (34) is opened on the bottom wall of the top box (32). The cleaning box (31) and the top box (32) are connected through the through hole (34). The bottom of the cleaning box (31) is conical, and a second solenoid valve (35) is fixedly installed on the bottom of the cleaning box (31).