Air supply mechanism of biomass hot blast stove

Abstract

The air supply mechanism comprises a heat exchange frame, a first filter screen and a second filter screen are sequentially and fixedly connected to the interior of the heat exchange frame from left to right, an air inlet frame is fixedly communicated with one side of the heat exchange frame, and a mounting frame is fixedly connected to the interior of the air inlet frame; a driving assembly is arranged on the surface of the mounting frame, a first bevel gear is arranged at one end of the driving assembly, a mounting groove is formed in the top of the inner wall of the heat exchange frame, and a connecting assembly is arranged at the top of the inner wall of the mounting groove. Through cooperative use of the driving assembly, the first bevel gear, the connecting assembly, the second bevel gear, the moving assembly, the first cleaning brush, the connecting frame, the second cleaning brush and other structures, impurities on the first filter screen and the second filter screen can be automatically cleaned, the situation that the first filter screen and the second filter screen need to be manually detached for cleaning is avoided, time and labor are saved, and the working efficiency is improved. The labor cost is reduced, and the practicability of the air supply mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply mechanisms, in particular to an air supply mechanism for a biomass hot air furnace. Background Art

[0002] The biomass pellet reverse-firing hot air furnace generates heat by burning biomass pellet fuel, and then uses the heat to heat the heat transfer medium. This equipment is commonly used in the field of drying technology.

[0003] In the Chinese patent with announcement number CN215389134U, a biomass hot blast furnace air supply mechanism is disclosed, and its technical solution is: it includes an air supply heat exchange box, one end of the air supply heat exchange box is equipped with a smoke inlet square pipe, and an air delivery coil is installed inside the air supply heat exchange box, and the air supply heat exchange box is provided with two sets of positioning slots on the side of one end of the air supply heat exchange box close to the smoke inlet square pipe, and a filter assembly is movably connected inside the positioning slot, and a fixed assembly is fixedly installed on one side of the outer end of the positioning slot. The beneficial effect of the utility model is that it can filter and remove dust from high-temperature flue gas, and the first plug-in plate and the second plug-in plate can use the filter screen in the middle to perform double filtration on the high-temperature flue gas. At this time, the flue gas entering the air supply heat exchange box can exchange heat with the air in the air delivery coil, and the flue gas after heat exchange is discharged through the exhaust port, so as to prevent impurities contained in the high-temperature flue gas from adhering to the inner wall of the air supply heat exchange box and the surface of the air delivery coil, and also to prevent the high-temperature flue gas from polluting the surrounding environment when discharged.

[0004] The above solution has the following shortcomings: in actual use, the filter in the air supply mechanism needs to be manually disassembled and cleaned. Manual cleaning is time-consuming and labor-intensive, which increases labor costs and reduces the practicality of the air supply mechanism. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an air supply mechanism for a biomass hot blast furnace.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a biomass hot air furnace air supply mechanism, including a heat exchange frame, the interior of the heat exchange frame is fixedly connected with filter screen 1 and filter screen 2 from left to right in sequence, one side of the heat exchange frame is fixedly connected with an air intake frame, the interior of the air intake frame is fixedly connected with a mounting frame, a driving component is provided on the surface of the mounting frame, one end of the driving component is provided with a bevel gear 1, the top of the inner wall of the heat exchange frame is provided with a mounting groove, the top of the inner wall of the mounting groove is provided with a connecting component, the outside of the connecting component is provided with a bevel gear 2, the inner wall of the mounting groove is provided with a connecting component, the outer wall of the connecting component is provided with a bevel gear 2, and the inner wall of the mounting groove is provided with a connecting component. A movable component is provided at the top of the wall and on one side of the connecting component, a cleaning brush 1 is provided on one side of the movable component, the top of the cleaning brush 1 is fixedly connected to a connecting frame, one side of the connecting frame passes through the interior of the heat exchange frame and is fixedly connected to a cleaning brush 2, two discharge ports are provided at the bottom of the inner wall of the heat exchange frame, a limiting groove is provided at the bottom of the heat exchange frame, a slide is slidably connected to the inside of the limiting groove, a collecting component is provided on the side of the slide close to the air intake frame, a fixed component is provided at the bottom of the heat exchange frame, and the diameter of the filter hole on the filter screen 1 is smaller than the diameter of the filter hole on the filter screen 2.

[0007] As a further description of the above technical solution:

[0008] The driving assembly comprises a driving rod which rotates and passes through the surface of the mounting frame, and one end of the driving rod is fixedly connected with a plurality of driving leaves.

[0009] As a further description of the above technical solution:

[0010] The connecting assembly includes a connecting rod rotatably connected to the top of the inner wall of the installation groove, and a pulley is sleeved on the outside of the connecting rod and located inside the installation groove.

[0011] As a further description of the above technical solution:

[0012] The moving assembly includes a moving shaft rotatably connected to the top of the inner wall of the mounting groove, a second pulley is provided on the outer sleeve of the moving shaft, a reciprocating screw is fixedly connected to the bottom end of the moving shaft, a moving bar is threadedly connected to the outer surface of the reciprocating screw, and the second pulley is connected to the first pulley through a belt drive.

[0013] As a further description of the above technical solution:

[0014] The collecting assembly comprises a collecting frame fixedly connected to one side of the slide plate, and a fixing groove is provided on one side of the collecting frame.

[0015] As a further description of the above technical solution:

[0016] The fixing assembly includes an installation frame fixedly connected to the bottom of the heat exchange frame, a spring fixedly connected to one side of the inner wall of the installation frame, one end of the spring fixedly connected to a connecting strip, one side of the connecting strip fixedly connected to a fixing block, and the connecting strip is L-shaped.

[0017] As a further description of the above technical solution:

[0018] An air outlet is provided on the other side of the heat exchange frame. Two heat exchange tubes are provided at the bottom of the inner wall of the heat exchange frame. The top ends of the heat exchange tubes pass through the outside of the heat exchange frame and are provided with connecting flanges.

[0019] The utility model has the following beneficial effects:

[0020] 1. Compared with the existing technology, the air supply mechanism of the biomass hot air furnace can automatically clean the impurities on the filter screen 1 and the filter screen 2 through the coordinated use of the drive component, bevel gear 1, connecting component, bevel gear 2, moving component, cleaning brush 1, connecting frame and cleaning brush 2, avoiding the need to manually remove the filter screen 1 and the filter screen 2 for cleaning, saving time and effort, reducing labor costs, and improving the practicality of the air supply mechanism.

[0021] 2. Compared with the existing technology, the air supply mechanism of the biomass hot air furnace, through the coordinated use of structures such as limit slots, slides, collection components and fixed components, is convenient for cleaning the collected impurities. The operation is simple and convenient, and it avoids the accumulation of impurities in the heat exchange frame and the reduction of heat exchange effect, further improving the practicality of the air supply mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the air supply mechanism of a biomass hot air furnace proposed in the utility model;

[0023] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the air supply mechanism of a biomass hot air furnace proposed in the present invention from another angle;

[0024] Figure 3 This is a schematic diagram of the heat exchange frame structure of the air supply mechanism of a biomass hot air stove proposed in the utility model;

[0025] Figure 4 This is a schematic diagram of the installation frame structure of the air supply mechanism of a biomass hot air stove proposed in the utility model;

[0026] Figure 5 for Figure 3 A partial enlarged view of point A is shown in FIG.

[0027] Legend:

[0028] 1. Heat exchange frame; 2. Filter screen 1; 3. Filter screen 2; 4. Air intake frame; 5. Mounting frame; 6. Bevel gear 1; 7. Mounting slot; 8. Bevel gear 2; 9. Cleaning brush 1; 10. Cleaning brush 2; 11. Discharge port; 12. Limiting slot; 13. Slide plate; 14. Drive rod; 15. Drive blade; 16. Connecting rod; 17. Pulley 1; 18. Moving shaft; 19. Pulley 2; 20. Reciprocating screw; 21. Moving bar; 22. Collecting frame; 23. Fixed slot; 24. Mounting frame; 25. Spring; 26. Connecting bar; 27. Fixed block; 28. Heat exchange tube; 29. Air outlet; 30. Connecting frame. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1-5 The utility model provides an air supply mechanism for a biomass hot air stove: it includes a heat exchange frame 1, the interior of the heat exchange frame 1 is fixedly connected with a filter screen 2 and a filter screen 3 from left to right, one side of the heat exchange frame 1 is fixedly connected with an air intake frame 4, the interior of the air intake frame 4 is fixedly connected with a mounting bracket 5, a driving component is provided on the surface of the mounting bracket 5, one end of the driving component is provided with a bevel gear 6, a mounting groove 7 is provided on the top of the inner wall of the heat exchange frame 1, a connecting component is provided on the top of the inner wall of the mounting groove 7, a bevel gear 2 is provided on the outside of the connecting component, a moving component is provided on the top of the inner wall of the mounting groove 7 and on one side of the connecting component, a cleaning brush 9 is provided on one side of the moving component, and the top of the cleaning brush 1 is fixed It is connected to a connecting frame 30, one side of the connecting frame 30 passes through the interior of the heat exchange frame 1 and is fixedly connected to a cleaning brush 2 10, two discharge ports 11 are provided at the bottom of the inner wall of the heat exchange frame 1, and a limiting groove 12 is provided at the bottom of the heat exchange frame 1. A slide 13 is slidably connected to the inside of the limiting groove 12, and a collecting component is provided on the side of the slide 13 close to the air intake frame 4. A fixed component is provided at the bottom of the heat exchange frame 1, the diameter of the filter hole on the filter screen 1 2 is smaller than the diameter of the filter hole on the filter screen 2 3, the bevel gear 1 6 is meshed with the bevel gear 2 8, one side of the cleaning brush 1 is in contact with one side of the filter screen 2 3, and one side of the cleaning brush 2 is in contact with one side of the filter screen 1 2. The shape of one side of the connecting frame 30 is square.

[0031] The driving assembly includes a driving rod 14 that rotates and passes through the surface of the mounting frame 5. One end of the driving rod 14 is fixedly connected to a plurality of driving leaves 15, and a bevel gear 6 is fixedly connected to the other end of the driving rod 14.

[0032] The connecting assembly includes a connecting rod 16 rotatably connected to the top of the inner wall of the mounting groove 7, a pulley 17 is sleeved on the outside of the connecting rod 16 and located inside the mounting groove 7, and a bevel gear 2 8 is sleeved on the outer surface of the connecting rod 16.

[0033] The moving assembly includes a moving shaft 18 rotatably connected to the top of the inner wall of the mounting groove 7, a pulley 2 19 is provided on the outer sleeve of the moving shaft 18, a reciprocating screw 20 is fixedly connected to the bottom end of the moving shaft 18, a moving bar 21 is threadedly connected to the outer surface of the reciprocating screw 20, the pulley 2 19 is connected to the pulley 1 17 through a belt drive, and a cleaning brush 1 is fixedly connected to the side of the moving bar 21 close to the filter screen 2 3.

[0034] The collecting assembly includes a collecting frame 22 fixedly connected to one side of the slide 13 . A fixing groove 23 is formed on one side of the collecting frame 22 . The top of the collecting frame 22 is connected to the two discharge ports 11 .

[0035] The fixing assembly includes a mounting frame 24 fixedly connected to the bottom of the heat exchange frame 1, a spring 25 fixedly connected to one side of the inner wall of the mounting frame 24, one end of the spring 25 fixedly connected to a connecting strip 26, one side of the connecting strip 26 fixedly connected to a fixing block 27, the connecting strip 26 is L-shaped, and the fixing groove 23 is adapted to the fixing block 27.

[0036] An air outlet 29 is provided on the other side of the heat exchange frame 1. Two heat exchange tubes 28 are provided at the bottom of the inner wall of the heat exchange frame 1. The top of the heat exchange tube 28 passes through the outside of the heat exchange frame 1 and is provided with a connecting flange. The heat exchange tube 28 is located on one side of the filter screen 2.

[0037] Working principle: When the fan starts to draw air to supply air to the hot blast furnace, the heat exchange tube 28 is first fixed to the output end of the fan through the connecting flange. At the same time, the hot flue gas will enter the heat exchange frame 1 through the air inlet frame 4. At this time, the filter screen 2 3 and the filter screen 1 2 will perform preliminary and secondary filtration on the flue gas. At this time, the flue gas entering the heat exchange frame 1 can exchange heat with the air in the heat exchange tube 28. The flue gas after heat exchange is discharged through the outlet 29.

[0038] At the same time, the flue gas blows a number of driving blades 15 to drive the driving rod 14 to rotate, so that the driving rod 14 drives the bevel gear 1 6, the bevel gear 2 8 and the connecting rod 16 to rotate synchronously, so that the connecting rod 16 drives the pulley 1 17 to rotate and drives the pulley 2 19 to rotate through the belt of the pulley 17, so that the pulley 2 19 drives the moving shaft 18 and the reciprocating screw 20 to rotate synchronously, and then the moving bar 21 drives the cleaning brush 1 to move on the surface of the cleaning net 2, and at the same time, the cleaning brush 1 will drive the connecting frame 30 to move, so that the cleaning brush 2 moves on the surface of the cleaning net 1, at this time, the moving cleaning brush 1 and the cleaning brush 2 clean the filter 2 3 and the filter 1 2 respectively, and the impurities cleaned at this time will fall into the collection frame 22 through the discharge port 11;

[0039] When it is necessary to process the impurities in the collection frame 22, the fixing block 27 is moved outward by pulling the connecting bar 26, so that the fixing block 27 is disengaged from the fixing groove 23, and the fixation of the collection frame 22 is released. The collection frame 22 can be removed, which is convenient for processing the impurities in the collection frame 22. After the processing is completed, the connecting bar 26 is pulled again to drive the fixing block 27 to move and squeeze the spring 25. At this time, the slide plate 13 is slid into the limit groove 12 so that the position of the fixing groove 23 is consistent with the position of the fixing block 27. Then, the connecting bar 26 is loosened and under the action of the spring 25, the fixing block 27 is clamped in the fixing groove 23 to fix the collection frame 22.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A biomass hot air furnace air supply mechanism, comprising a heat exchange frame (1), characterized in that: The interior of the heat exchange frame (1) is fixedly connected with filter screen 1 (2) and filter screen 2 (3) from left to right in sequence. One side of the heat exchange frame (1) is fixedly connected with an air intake frame (4). The interior of the air intake frame (4) is fixedly connected with a mounting frame (5). A driving component is provided on the surface of the mounting frame (5). One end of the driving component is provided with a bevel gear 1 (6). The top of the inner wall of the heat exchange frame (1) is provided with a mounting groove (7). The top of the inner wall of the mounting groove (7) is provided with a connecting component. The outside of the connecting component is provided with a bevel gear 2 (8). The top of the inner wall of the mounting groove (7) is located on one side of the connecting component. A moving component is provided, and a cleaning brush (9) is provided on one side of the moving component, and a connecting frame (30) is fixedly connected to the top of the cleaning brush (9), and one side of the connecting frame (30) passes through the interior of the heat exchange frame (1) and is fixedly connected to a cleaning brush (10), and two discharge ports (11) are provided at the bottom of the inner wall of the heat exchange frame (1), and a limiting groove (12) is provided at the bottom of the heat exchange frame (1), and a slide (13) is slidably connected to the inside of the limiting groove (12), and a collecting component is provided on the side of the slide (13) close to the air intake frame (4), and a fixed component is provided at the bottom of the heat exchange frame (1).

2. The air supply mechanism of a biomass hot air furnace according to claim 1, characterized in that: The driving assembly comprises a driving rod (14) which rotates and penetrates the surface of the mounting frame (5); one end of the driving rod (14) is fixedly connected with a plurality of driving leaves (15).

3. The air supply mechanism of a biomass hot air furnace according to claim 1, characterized in that: The connecting assembly comprises a connecting rod (16) rotatably connected to the top of the inner wall of the installation groove (7), and a pulley (17) is sleeved on the outside of the connecting rod (16) and located inside the installation groove (7).

4. The air supply mechanism of a biomass hot air furnace according to claim 1, characterized in that: The moving assembly includes a moving shaft (18) rotatably connected to the top of the inner wall of the mounting groove (7), a second pulley (19) is provided on the outside of the moving shaft (18), a reciprocating screw rod (20) is fixedly connected to the bottom end of the moving shaft (18), and a moving bar (21) is threadedly connected to the outer surface of the reciprocating screw rod (20).

5. The air supply mechanism of a biomass hot air furnace according to claim 1, characterized in that: The collecting assembly comprises a collecting frame (22) fixedly connected to one side of the slide plate (13), and a fixing groove (23) is provided on one side of the collecting frame (22).

6. The air supply mechanism of a biomass hot air furnace according to claim 1, characterized in that: The fixing assembly comprises a mounting frame (24) fixedly connected to the bottom of the heat exchange frame (1), a spring (25) fixedly connected to one side of the inner wall of the mounting frame (24), one end of the spring (25) fixedly connected to a connecting strip (26), and one side of the connecting strip (26) fixedly connected to a fixing block (27).

7. The air supply mechanism of a biomass hot air furnace according to claim 1, characterized in that: An air outlet (29) is provided on the other side of the heat exchange frame (1), and two heat exchange tubes (28) are provided at the bottom of the inner wall of the heat exchange frame (1). The top ends of the heat exchange tubes (28) pass through the outside of the heat exchange frame (1) and are provided with connecting flanges.

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