Smoke flame arrester for biomass boiler

Abstract

The utility model relates to the technical field of boiler safety and flue gas treatment, in particular to a flue gas flame arrester for a biomass boiler, which comprises a box body, an air cylinder is fixedly connected to the middle of the upper end of the box body, an output port of the air cylinder is fixedly connected to an input port of a suction pipe, and a sliding groove is fixedly connected to the middle of the lower end of the suction pipe. A reciprocating lead screw is fixedly connected to the middle of the inner side wall of the sliding groove. According to the device, a suction pipe can be driven by an air cylinder to move up and down, and in cooperation with the guiding effect of a sliding groove and a reciprocating lead screw, an electric rotating disc can drive a slag prevention net plate and other components to do reciprocating motion in a fixing barrel, then an adsorption face on a slag collection plate can adsorb impurities in smoke, and a brush can assist in cleaning the impurities; the V-shaped blocks and the supporting columns play a role in supporting the slag collecting plate, the technical problem that impurities in the flue gas of the biomass boiler are difficult to effectively remove can be solved through cooperative work of the components, the flue gas purification effect is improved, and damage to subsequent equipment is reduced.

Description

Technical Field

[0001] This application relates to the field of boiler safety and flue gas treatment technology, and in particular to a flue gas flame arrester for biomass boilers. Background Technology

[0002] Flame arresters for biomass boilers are key safety components in biomass combustion systems, preventing spark leakage and intercepting unburned particulate matter. Through the synergistic effect of a multi-stage flame-arresting structure and a dynamic interception mechanism, they ensure that flue gas emissions meet fire prevention and environmental protection requirements. Currently, the industry commonly uses a flame-arresting solution combining metal filters and mechanical cleaning, relying on fixed filter elements and flange bolts for foundation installation, and cleaning the filter screen through manual tapping or compressed air backflushing. With the increasing complexity of biomass fuels and the refinement of emission standards, equipment needs to maintain high-efficiency flame-arresting performance under conditions of high humidity, strong corrosiveness, and high levels of sticky impurities, while also meeting the functional requirements of automated cleaning, rapid maintenance, and stable sealing. This is driving the development of flue gas flame arresters towards an integrated approach of isolation, collection, and cleaning.

[0003] Traditional flue gas flame arresters have some technical shortcomings: First, static filters rely on passive interception, which can easily cause filter pores to clump together under conditions of mixed sticky particles and fibrous impurities, leading to reduced ventilation efficiency and affecting boiler combustion stability; Second, bolt-fixed installation structures require repeated disassembly and assembly with the aid of tools, and are prone to thread seizing due to thermal expansion under high-temperature environments, increasing maintenance difficulty and safety risks. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, this application provides a flue gas flame arrestor for biomass boilers.

[0005] This application provides a flue gas flame arrester for a biomass boiler, employing the following technical solution: It includes a housing, with a cylinder fixedly connected to the upper middle portion of the housing. The cylinder's output port is fixedly connected to the suction pipe's input port. A sliding groove is fixedly connected to the lower middle portion of the suction pipe. A reciprocating screw is fixedly connected to the middle of the inner sidewall of the sliding groove. An electric turntable is fixedly connected to the lower middle portion of the reciprocating screw. A slag-preventing mesh is fixedly connected to the lower middle portion of the electric turntable. A fixed cylinder is fixedly connected to the lower middle portion of the slag-preventing mesh. A V-shaped block is fixedly connected to the bottom of the fixed cylinder. A support column is fixedly connected to the upper middle portion of the V-shaped block. A slag-collecting plate is fixedly connected to the upper middle portion of the support column. An adsorption surface is fixedly connected to the upper middle portion of the slag-collecting plate, and a brush is provided on the upper middle portion of the adsorption surface.

[0006] Optionally, a fixing block is fixedly connected to the middle of the lower end of the fixing cylinder, and an air outlet hood is fixedly connected to each of the left and right opposite sides of the fixing block. A slag inlet pipe is fixedly connected to each of the left and right sides of the upper end of the fixing block.

[0007] With the above scheme, the fixing block in the middle of the lower end of the fixing cylinder is connected to the support component; the gas hood on the opposite side of the fixing block can discharge the treated gas; the slag inlet pipes on the left and right sides of the upper end of the fixing block can guide the collected slag and other debris into the designated position of the device for convenient subsequent processing.

[0008] Optionally, V-shaped blocks are provided on both sides of the slag inlet pipe, which are close to each other. The V-shaped blocks are located below the filter screen, and an electric turntable is fixedly connected to the middle of the upper end of the filter screen.

[0009] With the above scheme, the V-shaped blocks on the left and right sides of the slag inlet pipe can guide the flow of slag. The V-shaped blocks are located below the filter screen, which can prevent slag from accumulating around the filter screen. The filter screen can filter impurities in the flue gas, and the electric turntable at the upper middle part can drive the relevant components to rotate to assist in operations such as slag collection.

[0010] Optionally, each of the left and right opposite sides of the housing is fixedly connected to a mounting block, each of the left and right opposite sides of the mounting block is fixedly connected to a metal block, each of the left and right opposite sides of the metal block is fixedly connected to a spring, and each of the left and right opposite sides of the spring is fixedly connected to a linkage plate.

[0011] With the above scheme, there are mounting blocks on the left and right sides of the box; the metal blocks on the left and right sides of the mounting blocks are used to fix the spring; the linkage plates on the left and right sides of the spring can be moved with the help of the spring, which makes it easy to cooperate with other components to complete the installation or disassembly operation.

[0012] Optionally, a second metal block is fixedly connected to each of the left and right opposite sides of the lower end of the linkage plate, and a mounting hole is engaged in the middle of the lower end of the second metal block.

[0013] With the above solution, the metal blocks on the left and right sides of the lower end of the linkage plate can cooperate with other components, and the mounting holes in the middle of the lower end can be used to fix the flame arrester, which is convenient for disassembly and maintenance.

[0014] Optionally, the mounting holes are located at the left and right ends of the inner side wall of the box, and reciprocating screws are fixedly connected to the top of the box around the perimeter. Cylinders are provided on the left and right sides of the reciprocating screws that are close to each other.

[0015] With the above scheme, the mounting holes located at the left and right ends of the inner side wall of the box are used to cooperate with other components to install and fix the flame arrester; the reciprocating screw fixed around the top of the box can provide guidance, and the cylinders set on the left and right sides close to each other can drive the movement of related components to assist in completing the flue gas treatment and other tasks.

[0016] Optionally, a reciprocating lead screw is provided in the middle of the inner side wall of the box, the reciprocating lead screw is located above the fixed cylinder, and a cylinder is provided in the middle of the upper end of the fixed cylinder.

[0017] With the above scheme, the reciprocating lead screw in the middle of the inner side wall of the box can guide the component to reciprocate; it is located above the fixed cylinder, and the cylinder in the middle of the upper end of the fixed cylinder can drive the component to perform operations such as flue gas treatment.

[0018] Optionally, the cylinder is located above the reciprocating lead screw, and there are multiple cylinders.

[0019] With the above solution, multiple cylinders located above the reciprocating lead screw can drive relevant components to move as needed, assisting in the completion of the flue gas treatment process.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] 1. This utility model, through the arrangement of components such as a cylinder, suction pipe, sliding groove, reciprocating screw, electric turntable, anti-slag mesh plate, fixed cylinder, V-block, support column, slag collection plate, adsorption surface, and brush, uses the cylinder to drive the suction pipe to move up and down. The sliding groove and reciprocating screw guide the electric turntable, causing the anti-slag mesh plate and other components to reciprocate within the fixed cylinder. This allows the adsorption surface on the slag collection plate to adsorb impurities in the flue gas. The brush assists in cleaning impurities, and the V-block and support column support the slag collection plate. Through the coordinated work of these components, the technical problem of effectively removing impurities from the flue gas of biomass boilers is solved, improving the flue gas purification effect and reducing damage to downstream equipment.

[0022] 2. This utility model, by setting up components such as an installation block, a first metal block, a spring, a linkage plate, a second metal block, and installation holes, utilizes the elasticity of the spring to enable the linkage plate to move the second metal block elastically. This allows the second metal block to engage or disengage with the installation holes on the inner side wall of the housing. The first metal block also serves to connect the installation block and the spring. This elastic engagement structure solves the technical problem of inconvenient installation and disassembly of the flue gas flame arrester, thereby facilitating the maintenance and replacement of the flue gas flame arrester and improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a side view of a flue gas flame arrestor for a biomass boiler proposed in this utility model.

[0024] Figure 2 This is a side view of the casing structure of a flue gas flame arrester for a biomass boiler proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the main structure of the casing of a flue gas flame arrester for a biomass boiler proposed in this utility model.

[0026] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0027] Legend:

[0028] 1. Housing; 2. Cylinder; 3. Mounting block; 4. Metal block one; 5. Metal block two; 6. Spring; 7. Linkage plate; 8. Reciprocating screw; 9. Fixing block; 10. Sliding groove; 11. Mounting hole; 12. Air outlet hood; 13. Fixing cylinder; 14. Suction pipe; 15. Electric turntable; 16. Slag-proof mesh plate; 17. Filter screen; 18. Adsorption surface; 19. Slag inlet pipe; 20. Brush; 21. V-block; 22. Slag collection plate; 23. Support column. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses a flue gas flame arrestor for biomass boilers.

[0031] Please see Figures 1 to 4 A flue gas flame arrester for a biomass boiler includes a housing 1. A cylinder 2 is fixedly connected to the middle of the upper end of the housing 1. The output port of the cylinder 2 is fixedly connected to the input port of the suction pipe 14. A sliding groove 10 is fixedly connected to the middle of the lower end of the suction pipe 14. A reciprocating screw 8 is fixedly connected to the middle of the inner side wall of the sliding groove 10. An electric turntable 15 is fixedly connected to the middle of the lower end of the reciprocating screw 8. A slag-preventing mesh plate 16 is fixedly connected to the middle of the lower end of the electric turntable 15. A fixed cylinder 13 is fixedly connected to the middle of the lower end of the slag-preventing mesh plate 16. A V-shaped block 21 is fixedly connected to the bottom of the fixed cylinder 13. A support column 23 is fixedly connected to the middle of the upper end of the V-shaped block 21. A slag-collecting plate 22 is fixedly connected to the middle of the upper end of the support column 23. An adsorption surface 18 is fixedly connected to the middle of the upper end of the slag-collecting plate 22. A brush 20 is provided at the middle of the upper end of the adsorption surface 18.

[0032] It should be explained that the output port of the cylinder 2 fixed in the middle of the upper part of the box 1 is connected to the input port of the suction pipe 14, which can drive the suction pipe 14 to move. The sliding groove 10 in the middle of the lower part of the suction pipe 14 provides sliding space for the internal components. The reciprocating screw 8 in the middle of the inner wall of the sliding groove 10 can guide the components to reciprocate. The electric turntable 15 in the middle of the lower part of the reciprocating screw 8 can drive the lower components to rotate. The anti-slag mesh plate 16 in the middle of its lower part can block larger slag. There is a fixed cylinder 13 in the middle of the lower part of the anti-slag mesh plate 16. The V-shaped block 21 at the bottom of the fixed cylinder 13 can guide the flow of slag. The support column 23 in the middle of the upper part of the V-shaped block 21 provides support. The slag collection plate 22 in the middle of the upper part of the support column 23 is used to collect slag. The adsorption surface 18 in the middle of the upper part of the slag collection plate 22 can adsorb small impurities in the flue gas. The brush 20 in the middle of the upper part of the adsorption surface 18 can assist in cleaning impurities.

[0033] Please see Figures 1 to 4A fixing block 9 is fixedly connected to the middle of the lower end of the fixing cylinder 13. An air hood 12 is fixedly connected to the left and right opposite sides of the fixing block 9. A slag inlet pipe 19 is fixedly connected to the left and right sides of the upper end of the fixing block 9.

[0034] It should be explained that the fixing block 9 fixed at the lower middle of the fixed cylinder 13 is used for connection and support. The exhaust hood 12 connected to its left and right sides can discharge the treated flue gas and ensure flue gas circulation. The slag inlet pipes 19 on the left and right sides of the upper end of the fixing block 9 are used to guide the collected slag and other impurities to the subsequent processing position, so as to facilitate the centralized treatment of impurities.

[0035] Please see Figures 1 to 4 V-shaped blocks 21 are provided on both sides of the slag inlet pipe 19, which are close to each other. The V-shaped blocks 21 are located below the filter screen 17, and an electric turntable 15 is fixedly connected to the upper middle part of the filter screen 17.

[0036] It should be explained that the V-shaped blocks 21 set on the left and right sides of the slag inlet pipe 19 can guide the debris and other impurities to flow along its inclined surface, preventing impurities from accumulating in the corners. The V-shaped blocks 21 are located below the filter screen 17 and can catch the impurities falling from the filter screen 17. The electric turntable 15 in the middle of the upper end of the filter screen 17 can drive the filter screen 17 and other components to rotate, helping the impurities to slide smoothly to the V-shaped blocks 21.

[0037] Please see Figures 1 to 4 Mounting blocks 3 are fixedly connected to the left and right opposite sides of the housing 1. Metal blocks 4 are fixedly connected to the left and right opposite sides of the mounting blocks 3. Springs 6 are fixedly connected to the left and right opposite sides of the metal blocks 4. Linkage plates 7 are fixedly connected to the left and right opposite sides of the springs 6.

[0038] It should be explained that the mounting blocks 3 fixed on the left and right sides of the housing 1 are connected and positioned. The metal blocks 4 connected on the left and right sides of the mounting blocks 3 provide the installation position for the springs 6. There are springs 6 on the left and right sides of the metal blocks 4. When subjected to external force, the linkage plate 7 on the side of the springs 6 that is far away from each other can move accordingly, thereby enabling the installation, disassembly or buffering of the flame arrester and other components.

[0039] Please see Figures 1 to 4 Metal blocks 2 5 are fixedly connected to the lower left and right opposite sides of the linkage plate 7, and mounting holes 11 are engaged in the middle of the lower end of the metal blocks 2 5.

[0040] It should be explained that the metal blocks 25 fixed on the left and right sides of the lower end of the linkage plate 7 are connecting components. The mounting holes 11 in the middle of the lower end of the connecting plate 7 can be connected to external components, thereby realizing the quick installation or positioning of the flame arrester and other components, which facilitates subsequent maintenance and replacement.

[0041] Please see Figures 1 to 4The mounting holes 11 are located on the left and right ends of the inner side wall of the box 1. The top of the box 1 is fixedly connected with reciprocating screws 8 around the perimeter. Cylinders 2 are provided on the left and right sides of the reciprocating screws 8 that are close to each other.

[0042] It should be explained that the mounting holes 11 provided at both ends of the inner side wall of the housing 1 can be used for docking and installation with other components. The reciprocating screw 8 fixed around the top of the housing 1 can guide the relevant components to perform reciprocating motion, and the cylinder 2 provided on the left and right sides of the reciprocating screw 8 can drive the relevant components to assist in completing tasks such as flue gas treatment.

[0043] Please see Figures 1 to 4 A reciprocating screw 8 is provided in the middle of the inner side wall of the housing 1. The reciprocating screw 8 is located above the fixed cylinder 13. A cylinder 2 is provided in the middle of the upper end of the fixed cylinder 13.

[0044] It should be explained that a reciprocating lead screw 8 is installed in the middle of the inner wall of the housing 1. It is located above the fixed cylinder 13 and can guide the relevant components to perform reciprocating motion. The cylinder 2, which is set in the middle of the upper end of the fixed cylinder 13, drives the components to perform operations such as flue gas treatment.

[0045] Please see Figures 1 to 4 Cylinder 2 is located above reciprocating lead screw 8, and there are multiple cylinders 2.

[0046] It should be explained that multiple cylinders 2 are positioned above the reciprocating screw 8. These cylinders 2 can assist in driving the movement of the components related to the reciprocating screw 8 below, ensuring the smooth operation of the flue gas treatment process.

[0047] The implementation principle of a flue gas flame arrester for a biomass boiler according to an embodiment of this application is as follows:

[0048] First, after the flue gas enters the flue gas flame arrester, the cylinder 2 drives the suction pipe 14 to move. During the movement of the suction pipe 14, the reciprocating screw 8 in the sliding groove 10 at its lower end guides the relevant components to reciprocate. At the same time, the electric turntable 15 drives the anti-slag mesh plate 16 to rotate. The anti-slag mesh plate 16 can block larger pieces of slag in the flue gas, thus initially filtering the flue gas.

[0049] Secondly, the flue gas, after being filtered by the anti-slag mesh plate 16, continues to flow, and the fine impurities in the flue gas are adsorbed by the adsorption surface 18 on the slag collection plate 22. The electric turntable 15 can also drive the filter screen 17 and other related components to rotate, helping the impurities to slide smoothly to the V-shaped block 21. The V-shaped block 21 guides the slag and other impurities to flow along its inclined surface, and the impurities are introduced to the subsequent processing position through the slag inlet pipe 19.

[0050] Finally, the treated flue gas is discharged through the exhaust hoods 12 on both sides of the fixed block 9. The mounting blocks 3, metal block 1 4, spring 6, linkage plate 7, metal block 2 5, and mounting holes 11 on both sides of the housing 1 can realize the installation, disassembly, or buffering functions of the flame arrester and other components when needed, which facilitates subsequent maintenance and replacement and ensures the normal operation of the entire flue gas flame arrester.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flue gas flame arrester for a biomass boiler, comprising a housing (1), characterized in that: A cylinder (2) is fixedly connected to the middle of the upper end of the box (1). The output port of the cylinder (2) is fixedly connected to the input port of the suction pipe (14). A sliding groove (10) is fixedly connected to the middle of the lower end of the suction pipe (14). A reciprocating screw (8) is fixedly connected to the middle of the inner side wall of the sliding groove (10). An electric turntable (15) is fixedly connected to the middle of the lower end of the reciprocating screw (8). A slag-preventing mesh plate (16) is fixedly connected to the middle of the lower end of the electric turntable (15). A fixed cylinder (13) is fixedly connected to the lower middle part of the anti-slag mesh plate (16). A V-shaped block (21) is fixedly connected to the bottom of the fixed cylinder (13). A support column (23) is fixedly connected to the upper middle part of the V-shaped block (21). A slag collection plate (22) is fixedly connected to the upper middle part of the support column (23). An adsorption surface (18) is fixedly connected to the upper middle part of the slag collection plate (22). A brush (20) is provided at the upper middle part of the adsorption surface (18).

2. A flue gas flame arrester for a biomass boiler according to claim 1, characterized in that: A fixing block (9) is fixedly connected to the middle of the lower end of the fixing cylinder (13). An air hood (12) is fixedly connected to the left and right opposite sides of the fixing block (9). A slag inlet pipe (19) is fixedly connected to the left and right sides of the upper end of the fixing block (9).

3. A flue gas flame arrester for a biomass boiler according to claim 2, characterized in that: V-shaped blocks (21) are provided on both sides of the slag inlet pipe (19), and the V-shaped blocks (21) are located below the filter screen (17). An electric turntable (15) is fixedly connected to the middle of the upper end of the filter screen (17).

4. A flue gas flame arrester for a biomass boiler according to claim 1, characterized in that: The box (1) is fixedly connected to the left and right opposite sides of the mounting block (3), and the mounting block (3) is fixedly connected to the left and right opposite sides of the mounting block (3). The metal block (4) is fixedly connected to the left and right opposite sides of the metal block (4). The spring (6) is fixedly connected to the left and right opposite sides of the spring (6). The linkage plate (7) is fixedly connected to the left and right opposite sides of the spring (6).

5. A flue gas flame arrester for a biomass boiler according to claim 4, characterized in that: Metal blocks (5) are fixedly connected to the lower left and right opposite sides of the linkage plate (7), and mounting holes (11) are engaged in the middle of the lower end of the metal blocks (5).

6. A flue gas flame arrester for a biomass boiler according to claim 5, characterized in that: The mounting holes (11) are located on the left and right ends of the inner side wall of the box (1). The top of the box (1) is fixedly connected with reciprocating screws (8) around the perimeter. Cylinders (2) are provided on the left and right sides of the reciprocating screws (8) that are close to each other.

7. A flue gas flame arrester for a biomass boiler according to claim 1, characterized in that: A reciprocating screw (8) is provided in the middle of the inner side wall of the housing (1). The reciprocating screw (8) is located above the fixed cylinder (13). A cylinder (2) is provided in the middle of the upper end of the fixed cylinder (13).

8. A flue gas flame arrester for a biomass boiler according to claim 7, characterized in that: The cylinder (2) is located above the reciprocating lead screw (8), and there are multiple cylinders (2).

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