Smoke exhaust structure for hot blast stove

Abstract

The utility model discloses a smoke exhaust structure for a hot-blast stove. The smoke exhaust structure comprises a hot-blast stove body, a smoke exhaust pipeline is fixedly connected to one side of the hot blast stove body; fan blades are arranged on one side of the smoke exhaust pipeline, a filter screen is arranged on one side of the fan blades, and a scraping plate is arranged on one side of the filter screen; wherein an impurity removing plate is arranged on one side of the scraping plate, and an impurity removing cavity is formed in one side of the impurity removing plate; wherein a reset spring is arranged on the other side of the impurity removal cavity, a scraping strip is arranged on one side of the reset spring, a torsion spring is arranged on one side of the scraping strip, and by arranging fan blades, a rotating shaft, a filter screen, a rotating rod, a scraping plate, the torsion spring, a sliding block, the reset spring and a sliding groove, the smoke filtering efficiency is conveniently improved; and the inner wall of the smoke exhaust pipe is cleaned through the scraping plates, so that the smoke exhaust structure is more convenient and faster to use, and the service life of the smoke exhaust structure is longer in the mode that the fan blades drive the rotating shaft to rotate.

Description

Technical Field

[0001] The utility model relates to the field of hot blast stoves, in particular to a smoke exhaust structure for hot blast stoves. Background Art

[0002] The hot air furnace is a thermal power machine. It has become a replacement product for electric heat source and traditional steam power heat source in many industries, and is used in conjunction with the smoke exhaust pipe.

[0003] Publication No. CN217154211U discloses a smoke exhaust structure for a hot blast furnace, which relates to the technical field of waste gas treatment, including a smoke exhaust pipe, a limited groove is provided at the top of the inner wall of the smoke exhaust pipe, the limited edge is slidably connected inside the limited groove, a plurality of tooth groups are installed on the outer wall of the limited edge, a cleaning plate is fixedly connected to the bottom of the limited edge, a filter is fixedly connected to the top of the smoke exhaust pipe, a plurality of empty grooves are provided inside the filter, and the plurality of empty grooves are connected. The smoke exhaust structure for the hot blast furnace uses the rotation of a plurality of spherical filter nets inside the filter provided at one end of the smoke exhaust pipe, and when one of the filter nets filters the smoke, the ventilation holes in the middle of the remaining filter nets are consistent with the direction of the filter port, so as to avoid secondary pollution of the smoke by the used filter net. Similarly, the filter nets can be automatically replaced by rotating them in sequence, so as to ensure the efficiency of smoke filtration. However, the following problems still exist in the actual use of the patent:

[0004] The smoke exhaust structure achieves the purpose of replacing the filter by rotating, and cleans the inner wall of the smoke exhaust pipe by driving the scraper through the motor. However, it is difficult to judge the blockage condition of the filter when the smoke exhaust structure is used for a long time, and it is also difficult to replace the filter in time. In addition, the gas temperature inside the smoke exhaust pipe is usually high, so the motor is prone to damage, resulting in poor practicality of the smoke exhaust structure.

[0005] A smoke exhaust structure for a hot blast stove is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a smoke exhaust structure for a hot blast furnace to solve the problem proposed in the above background technology that the current smoke exhaust structure realizes the replacement of the filter by rotation and cleans the inner wall of the smoke exhaust pipe by driving a scraper through a motor, but since it is difficult to judge the blockage condition of the filter when the smoke exhaust structure is used for a long time, it is also difficult to replace the filter in time, and the gas temperature inside the smoke exhaust pipe is usually high, so the motor is prone to damage, resulting in the problem of poor practicality of the smoke exhaust structure.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smoke exhaust structure for a hot blast stove, comprising a hot blast stove body;

[0008] A smoke exhaust pipe is fixedly connected to one side of the hot blast stove body;

[0009] Also includes:

[0010] A fan blade is arranged on one side of the smoke exhaust pipe, a filter screen is arranged on one side of the fan blade, and a scraper is arranged on one side of the filter screen;

[0011] Wherein, a debris removal plate is arranged on one side of the scraper, and an extrusion spring is arranged on one side of the debris removal plate, and a debris removal cavity is arranged on the other side of the debris removal plate, and a collecting trough is arranged on one side of the debris removal cavity;

[0012] Wherein, a return spring is arranged on the other side of the impurity removal chamber, a scraper strip is arranged on one side of the return spring, and a torsion spring is arranged on one side of the scraper strip.

[0013] Preferably, the middle of the smoke exhaust pipe is rotatably connected to a rotating shaft, and a fan blade is fixedly connected to one side of the rotating shaft, and a connecting block is fixedly connected to the other side of the rotating shaft, and a filter is fixedly connected to one side of the connecting block, and a scraper is fixedly connected to one side of the filter, and a limit rod is rotatably connected to the outer side of the rotating shaft to facilitate filtering of smoke.

[0014] Preferably, a positioning rod is fixedly connected to one side of the top of the debris removing plate, and an extrusion spring is sleeved on the outer side of the positioning rod, and one side of the extrusion spring is overlapped with a positioning plate, and one side of the positioning plate is provided with a debris removing cavity, and one side of the debris removing cavity is overlapped with one side of the collecting trough and a fixing bolt is provided to facilitate cleaning of the scraper.

[0015] Preferably, a sliding groove is provided on one side of the return spring, and a sliding block is overlapped on one side of the return spring, and one side of the sliding block is rotatably connected to a rotating rod, and one side of the rotating rod is fixedly connected to a scraper strip, and the other side of the rotating rod is fixedly connected to a torsion spring, so as to facilitate cleaning of the filter screen.

[0016] Preferably, the fan blades are arranged on a side of the rotating shaft close to the hot air stove body, and one side of the scraper is closely connected to the inner wall of the smoke exhaust pipe, so as to facilitate cleaning of the inner wall of the smoke exhaust pipe.

[0017] Preferably, one side of the positioning plate is fixedly connected to the lower part of the inner wall of the smoke exhaust pipe, and the impurity removal chamber is also opened below the inner wall of the smoke exhaust pipe, and the collection trough is connected to the impurity removal chamber by fixing bolts to facilitate the collection of impurities.

[0018] Preferably, the rotating rod is closely connected to one side of the filter screen via a scraper bar, and two sides of the torsion spring are respectively fixedly connected to the rotating rod and one side of the sliding block, so as to facilitate the positioning of the rotating rod.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the smoke exhaust structure for a hot blast stove is convenient for improving the filtering efficiency of smoke by arranging fan blades, a rotating shaft, a filter screen, a rotating rod, a scraper, a torsion spring, a sliding block, a reset spring and a sliding groove, and is also convenient for the smoke exhaust pipe to be used without adjustment, and the inner wall of the smoke exhaust pipe is cleaned by the scraper, so that the smoke exhaust structure is more convenient and quick to use, and the rotation of the rotating shaft is driven by the fan blade to provide power for the rotation of the scraper, so that the service life of the smoke exhaust structure is longer, and the specific contents are as follows:

[0020] 1. The smoke exhaust structure is provided with a fan blade, a rotating shaft, a filter screen, a rotating rod, a scraper, a torsion spring, a sliding block, a reset spring and a sliding groove, so as to increase the contact area with the smoke through the inclined filter screen, thereby improving the filtering efficiency of the smoke, and scraping off the blocking materials on the filter screen through the scraper bar, so that the smoke exhaust pipe does not need to be adjusted during use, making the device more convenient and quick to use;

[0021] 2. The smoke exhaust structure of the device is provided with a scraper, a debris removal plate, a positioning rod, an extrusion spring and a positioning plate on both sides of the filter screen, so that the inner wall of the smoke exhaust pipe can be cleaned by the scraper, and the impurities on the scraper can be scraped into the debris removal cavity by the debris removal plate, and the rotation of the rotating shaft is driven by the fan blade to provide power for the rotation of the scraper, so that the smoke exhaust structure is more convenient and quick to use, and the service life of the smoke exhaust structure is also prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the filter screen of the utility model;

[0024] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 4 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0026] Figure 5 This is a schematic diagram of the limit rod structure of the utility model.

[0027] In the figure: 1. hot air furnace body; 2. smoke exhaust duct; 3. fan blade; 4. rotating shaft; 5. connecting block; 6. filter screen; 7. scraper; 8. debris removal plate; 9. positioning rod; 10. extrusion spring; 11. positioning plate; 12. debris removal chamber; 13. collecting tank; 14. fixing bolt; 15. sliding groove; 16. reset spring; 17. sliding block; 18. rotating rod; 19. scraper strip; 20. torsion spring; 21. limit rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 The utility model provides a technical solution: a smoke exhaust structure for a hot blast stove, comprising a hot blast stove body 1; a smoke exhaust pipe 2 is fixedly connected to one side of the hot blast stove body 1; and further comprising: a fan blade 3 is arranged on one side of the smoke exhaust pipe 2, and a filter screen 6 is arranged on one side of the fan blade 3, and a scraper 7 is arranged on one side of the filter screen 6; a rotating shaft 4 is rotatably connected to the middle of the smoke exhaust pipe 2, and the fan blade 3 is fixedly connected to one side of the rotating shaft 4, and a connecting block 5 is fixedly connected to the other side of the rotating shaft 4, and a filter screen 6 is fixedly connected to one side of the connecting block 5, and a scraper 7 is fixedly connected to one side of the filter screen 6, and a limit rod 21 is rotatably connected to the outer side of the rotating shaft 4; the fan blade 3 is arranged on one side of the rotating shaft 4 close to the hot blast stove body 1, and one side of the scraper 7 is fitted and connected to the inner wall of the smoke exhaust pipe 2, such as Figure 1 , 2 As shown in Figure 5, by setting the fan blade 3, when the hot blast furnace body 1 is in use, the hot air drives the fan blade 3 to rotate, so that the fan blade 3 drives the rotating shaft 4 to rotate, thereby providing power for the device, so that the smoke exhaust pipe 2 is not affected by the temperature during use, thereby extending the service life of the smoke exhaust pipe 2 during use, and the filter screen 6 is arranged in an inclined manner, which is convenient for enhancing the contact effect between the smoke and the filter screen 6 and improving the filtering efficiency, and when in use, the density filter screen 6 of different specifications can be increased or decreased as needed, thereby improving the filtering efficiency of the smoke exhaust structure.

[0030] Among them, a debris removal plate 8 is provided on one side of the scraper 7, and an extrusion spring 10 is provided on one side of the debris removal plate 8, and a debris removal chamber 12 is provided on the other side of the debris removal plate 8, and a collecting groove 13 is provided on one side of the debris removal chamber 12; a positioning rod 9 is fixedly connected to one side of the top of the debris removal plate 8, and the extrusion spring 10 is sleeved on the outer side of the positioning rod 9, and a positioning plate 11 is overlapped on one side of the extrusion spring 10, and a debris removal chamber 12 is opened on one side of the positioning plate 11, and a fixing bolt 14 is provided on one side of the debris removal chamber 12 overlapping the collecting groove 13; one side of the positioning plate 11 is fixedly connected to the lower part of the inner wall of the smoke exhaust pipe 2, and the debris removal chamber 12 is also opened at the lower part of the inner wall of the smoke exhaust pipe 2, and the collecting groove 13 is connected to the debris removal chamber 12 by the fixing bolt 14, such as Figure 1 , 2 As shown in FIG. 3 , by providing a debris removal plate 8, a positioning rod 9, an extrusion spring 10 and a positioning plate 11, it is convenient to scrape off the impurities on the scraper 7, thereby preventing the impurities remaining on the scraper 7 from affecting the cleaning efficiency of the scraper 7 on the inner wall of the smoke exhaust duct 2.

[0031] Among them, a return spring 16 is provided on the other side of the impurity removal chamber 12, and a scraper strip 19 is provided on one side of the return spring 16, and a torsion spring 20 is provided on one side of the scraper strip 19; a sliding groove 15 is provided on one side of the return spring 16, and a sliding block 17 is overlapped on one side of the return spring 16, and a rotating rod 18 is rotatably connected to one side of the sliding block 17, and a scraper strip 19 is fixedly connected to one side of the rotating rod 18, and a torsion spring 20 is fixedly connected to the other side of the rotating rod 18; the rotating rod 18 is fitted and connected to one side of the filter screen 6 through the scraper strip 19, and the two sides of the torsion spring 20 are respectively fixedly connected to the rotating rod 18 and one side of the sliding block 17, such as Figure 1 , 4 As shown, by setting a rotating rod 18, a scraper bar 19, a torsion spring 20, a sliding block 17, a sliding groove 15 and a reset spring 16, the rotating rod 18 can move according to the movement of the filter 6 to achieve the effect of cleaning the filter 6, and a house guide block is provided on one side of the scraper 7, so that when the rotating rod 18 overlaps with one side of the scraper 7, a guide is quickly formed, so that the rotating rod 18 falls on the outside of the scraper 7.

[0032] Working principle: When using the device, first install the smoke exhaust pipe 2 on the upper end of the hot air stove body 1, then blow the smoke into the smoke exhaust pipe 2, and drive the rotating shaft 4 to rotate on the limit rod 21 through the fan blade 3, and then the rotating shaft 4 drives the filter screen 6 and the scraper 7 to rotate through the connecting block 5.

[0033] Secondly, the scraper bar 19 on one side of the rotating rod 18 scrapes one side of the filter screen 6 through the squeezing of the torsion spring 20, and makes the rotating rod 18 slide in the sliding groove 15 through the sliding block 17. At this time, the reset spring 16 is extended and retracted, and when the rotating rod 18 is pushed to one side of the scraper 7, the rotating rod 18 is quickly retracted, and the side of the rotating rod 18 close to the scraper bar 19 is in contact with the outer side of the scraper 7.

[0034] Finally, after the scraper 7 clears the impurities on the inner wall, it pushes the impurity removal plate 8 to slide on the positioning plate 11 through the positioning rod 9, and contracts the extrusion spring 10, so that the impurity removal plate 8 can scrape the impurities from the scraper 7. Then the impurities fall into the impurity removal cavity 12, and the collection tank 13 is cleaned by removing the fixing bolts 14.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A smoke exhaust structure for a hot blast stove, comprising a hot blast stove body (1); A smoke exhaust pipe (2) is fixedly connected to one side of the hot blast stove body (1); It is characterized in that Also includes: A fan blade (3) is provided on one side of the smoke exhaust pipe (2), a filter screen (6) is provided on one side of the fan blade (3), and a scraper (7) is provided on one side of the filter screen (6); Wherein, a debris removal plate (8) is provided on one side of the scraper (7), and a pressing spring (10) is provided on one side of the debris removal plate (8), and a debris removal chamber (12) is provided on the other side of the debris removal plate (8), and a collecting groove (13) is provided on one side of the debris removal chamber (12); A return spring (16) is arranged on the other side of the impurity removal chamber (12), a scraper strip (19) is arranged on one side of the return spring (16), and a torsion spring (20) is arranged on one side of the scraper strip (19).

2. A smoke exhaust structure for a hot blast stove according to claim 1, characterized in that: The middle of the smoke exhaust pipe (2) is rotatably connected to a rotating shaft (4), one side of the rotating shaft (4) is fixedly connected to a fan blade (3), the other side of the rotating shaft (4) is fixedly connected to a connecting block (5), one side of the connecting block (5) is fixedly connected to a filter screen (6), one side of the filter screen (6) is fixedly connected to a scraper (7), and the outer side of the rotating shaft (4) is rotatably connected to a limiting rod (21).

3. The smoke exhaust structure for a hot blast stove according to claim 1, characterized in that: A positioning rod (9) is fixedly connected to one side of the top of the impurity removal plate (8), and an extrusion spring (10) is sleeved on the outer side of the positioning rod (9), and a positioning plate (11) is overlapped on one side of the extrusion spring (10), and an impurity removal cavity (12) is provided on one side of the positioning plate (11), and a collecting tank (13) is overlapped on one side of the impurity removal cavity (12), and a fixing bolt (14) is provided on one side of the collecting tank (13).

4. The smoke exhaust structure for a hot blast stove according to claim 1, characterized in that: A sliding groove (15) is provided on one side of the return spring (16), and a sliding block (17) is overlapped on one side of the return spring (16), and a rotating rod (18) is rotatably connected to one side of the sliding block (17), and a scraper strip (19) is fixedly connected to one side of the rotating rod (18), and a torsion spring (20) is fixedly connected to the other side of the rotating rod (18).

5. The smoke exhaust structure for a hot blast stove according to claim 2, characterized in that: The fan blade (3) is arranged on one side of the rotating shaft (4) close to the hot air stove body (1), and one side of the scraper (7) is closely connected to the inner wall of the smoke exhaust pipe (2).

6. A smoke exhaust structure for a hot blast stove according to claim 3, characterized in that: One side of the positioning plate (11) is fixedly connected to the lower part of the inner wall of the smoke exhaust pipe (2), and the impurity removal chamber (12) is also opened at the lower part of the inner wall of the smoke exhaust pipe (2), and the collection tank (13) is connected to the impurity removal chamber (12) via a fixing bolt (14).

7. A smoke exhaust structure for a hot blast stove according to claim 4, characterized in that: The rotating rod (18) is closely connected to one side of the filter screen (6) via a scraper strip (19), and two sides of the torsion spring (20) are respectively fixedly connected to one side of the rotating rod (18) and the sliding block (17).

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