Kiln tail flue gas filtering device

Abstract

The utility model discloses a kiln tail flue gas filtering device, which relates to the technical field of flue gas filtering and comprises a filtering box, a fixing ring is fixedly mounted at the top in the filtering box, a filtering barrel is fixedly mounted in the fixing ring, and a sealing ring is fixedly mounted on the outer side of the bottom of the filtering barrel. A driving rotating shaft is fixedly mounted at the top of the interior of the filter box, a supporting rod is fixedly mounted on one side of the bottom of the driving rotating shaft, a dust removal brush is fixedly mounted on one side of the supporting rod, and a connecting rotating shaft is fixedly mounted at the bottom of the supporting rod. According to the kiln tail flue gas filtering device, dust impurities and particulate matter in flue gas are filtered and intercepted through filtering holes in the periphery of a filtering barrel, and a supporting rod and a connecting rotating shaft are driven to rotate through operation of a driving rotating shaft, so that a dust removal brush on one side of the supporting rod is attached to the outer side of the filtering barrel to rotate; therefore, impurities blocked in the filtering holes are removed, and the problem that the filtering barrel is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke filtering, in particular to a kiln tail smoke filtering device. Background Art

[0002] Rotary kiln, also called rotary bed kiln, belongs to the category of building materials equipment. Rotary kiln can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to the different materials processed. Cement kiln is mainly used to calcine cement clinker, which is divided into two categories: dry process cement kiln and wet process cement kiln.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN217188471U discloses a rotary kiln tail dust removal and desulfurization device, the device body includes a support base, the surface of the support base is rotatably connected to a first gear ring, the top of the first gear ring is meshingly connected to a second gear ring, the inner side of the second gear ring is fixedly connected to a rotary kiln cylinder, the surface of the rotary kiln cylinder is fixedly connected to a kiln tail smoke chamber, and the outer side of the kiln tail smoke chamber is fixedly connected to an exhaust hole. The utility model can conveniently scrape dust on the surface of the filter screen plate through the action of the scraper plate to prevent the filter screen plate from being blocked due to long-term operation, and the blockages scraped by the scraper plate can be conveniently collected by connecting a drawer, and the flue gas can be filtered through the action of the filter screen plate to prevent the flue gas from being directly discharged to pollute the atmosphere.

[0004] Although the above-mentioned rotary kiln tail dust removal and desulfurization device can conveniently scrape the dust on the surface of the filter screen through the scraper plate to solve the problem of filter screen clogging due to long-term operation, filtering through the filter screen will result in a smaller filtration area, thereby affecting the exhaust of the equipment, and the impurities and dust scraped by the scraper will be blocked inside the exhaust hole, which can easily cause pipeline blockage. Utility Model Content

[0005] The utility model aims to overcome the problems of poor filtering effect and easy clogging of pipelines by dust and impurities in the prior art, and provides a kiln tail smoke filtering device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A kiln tail flue gas filtering device, comprising:

[0008] A filter box, wherein a fixing ring is fixedly installed on the inner top of the filter box, a filter barrel is fixedly installed on the inner part of the fixing ring, a sealing ring is fixedly installed on the outer side of the bottom of the filter barrel, a driving shaft is also fixedly installed on the inner top of the filter box, a support rod is fixedly installed on one side of the bottom of the driving shaft, a dust removal brush is fixedly installed on one side of the support rod, a connecting shaft is fixedly installed on the bottom of the support rod, a collecting box is fixedly installed on the bottom of the filter box, four telescopic rods are fixedly installed around the inner top of the collecting box, a connecting plate is fixedly installed on the bottom of the telescopic rod, a supporting column is fixedly installed in the middle of the top of the connecting plate, and a sealing block is fixedly installed on the top of the support column.

[0009] In a preferred embodiment, an air intake pipe is fixedly installed on the top of the filter box, and the air intake pipe is a structure for air intake.

[0010] In a preferred embodiment, a sealing door is fixedly installed on one side of the collection box, and a sealing plate is fixedly installed on one side of the sealing door, and the sealing plate is a sealing structure.

[0011] In a preferred embodiment, a connecting pipe is fixedly installed on the bottom of one side of the filter box, and a denitrification device is fixedly installed on one side of the connecting pipe. The denitrification device is a structure for denitrifying flue gas.

[0012] In a preferred embodiment, an exhaust pipe is fixedly installed on one side of the top of the denitration equipment, and an air detection device is fixedly installed in the middle of the exhaust pipe. The air detector device is a structure for detecting exhausted gas.

[0013] In a preferred embodiment, one side of the filter box is movably connected to the rotary kiln body, and one side of the rotary kiln body is fixedly installed with a kiln tail body.

[0014] In a preferred embodiment, an exhaust device is fixedly installed on the top of the kiln tail body, an air outlet pipe is fixedly installed on one side of the exhaust device, and the air outlet block is a structure for air outlet.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The kiln tail flue gas filtering device sends the flue gas inside the kiln tail main body from the outlet pipe to the inside of the inlet pipe through the exhaust equipment, so that the inlet pipe sends the flue gas into the filter barrel inside the filter box, and the dust impurities and particulate matter in the flue gas are filtered and intercepted through the filter holes around the filter barrel. The filtered flue gas enters the denitrification equipment from the connecting pipe on one side of the filter box for denitrification treatment. The support rod and the connecting shaft are driven to rotate by the operation of the driving shaft, so that the dust removal brush on one side of the support rod is rotated in contact with the outer side of the filter barrel, thereby removing the impurities blocked in the filter hole, avoiding the problem of blockage of the filter barrel, and improving the filtering effect of the kiln tail flue gas filtering device;

[0017] 2. The kiln tail flue gas filtering device, through the extension and retraction of the four telescopic rods on the top of the collecting box, pushes the connecting plate to move downward, thereby driving the supporting column to move downward, so that the sealing block is separated from the seal on the bottom of the filter barrel, so that the dust and impurities filtered out of the filter barrel enter the interior of the collecting box through the bottom of the filter barrel, and the sealing block on the top of the supporting column is driven to move upward by the contraction of the telescopic rod, so as to seal the bottom of the filter barrel, thereby avoiding the problem of unfiltered gas being discharged from the collecting box when cleaning the collecting box and causing polluted air. The collecting box can be cleaned by opening the sealing door, thereby improving the convenience and practicality of the kiln tail flue gas filtering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the filter box in the utility model;

[0020] Figure 3 It is a schematic diagram of the collection box in the utility model;

[0021] Figure 4 It is a schematic diagram of the connecting pipe in the utility model;

[0022] Figure 5 It is a schematic diagram of the main body of the rotary kiln in the utility model.

[0023] 1. Filter box; 11. Air inlet pipe; 12. Fixed ring; 13. Filter barrel; 14. Sealing ring; 15. Driving shaft; 16. Support rod; 17. Dust brush; 18. Connecting shaft; 2. Collecting box; 21. Telescopic rod; 22. Connecting plate; 23. Support column; 24. Sealing block; 25. Sealing door; 26. Sealing plate; 3. Connecting pipe; 31. Denitrification equipment; 32. Exhaust pipe; 33. Air detection device; 4. Rotary kiln body; 41. Kiln tail body; 42. Exhaust device; 43. Exhaust pipe. DETAILED DESCRIPTION

[0024] 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 described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] Combined with Figure 1-Figure 5 In this embodiment, a kiln tail flue gas filtering device includes: a filter box 1, a fixing ring 12 is fixedly installed on the internal top of the filter box 1, a filter barrel 13 is fixedly installed inside the fixing ring 12, a sealing ring 14 is fixedly installed on the bottom outer side of the filter barrel 13, and a driving shaft 15 is fixedly installed on the internal top of the filter box 1, a support rod 16 is fixedly installed on one side of the bottom of the driving shaft 15, a dust removal brush 17 is fixedly installed on one side of the support rod 16, and a connecting shaft 18 is fixedly installed on the bottom of the support rod 16.

[0026] An air intake pipe 11 is fixedly mounted on the top of the filter box 1 .

[0027] Specifically, the filter barrel 13 is fixed by the fixing ring 12 inside the filter box 1, and the gap between the filter barrel 13 and the top of the collecting box 2 is sealed by the sealing ring 14. The rotation of the driving shaft 15 can drive the support rod 16 and the connecting shaft 18 at its bottom to rotate, so that the dust removal brush 17 on one side of the support rod 16 rotates against the surface of the filter barrel 13 to brush away dust and impurities in the holes of the filter barrel 13.

[0028] A collecting box 2 is fixedly installed at the bottom of the filter box 1, four telescopic rods 21 are fixedly installed around the inner top of the collecting box 2, a connecting plate 22 is fixedly installed at the bottom of the telescopic rods 21, a supporting column 23 is fixedly installed in the middle of the top of the connecting plate 22, and a sealing block 24 is fixedly installed on the top of the supporting column 23.

[0029] A sealing door 25 is fixedly mounted on one side of the collection box 2 , and a sealing plate 26 is fixedly mounted on one side of the sealing door 25 .

[0030] Specifically, by extending and retracting the four telescopic rods 21 around the bottom of the collecting box 2, the connecting plate 22 and the supporting column 23 in the middle of the connecting plate 22 can be pushed downward, so that the sealing block 24 is separated from the seal on the bottom plate inside the filter barrel 13, so that the dust inside the filter barrel 13 enters the collecting box 2 for collection. The sealing plate 26 can be separated from the seal by opening the sealing door 25, so that the dust inside the collecting box 2 can be cleaned.

[0031] A connecting pipe 3 is fixedly installed at the bottom of one side of the filter box 1 , and a denitrification device 31 is fixedly installed at one side of the connecting pipe 3 .

[0032] An exhaust pipe 32 is fixedly installed on one side of the top of the denitration equipment 31 , and an air detection device 33 is fixedly installed in the middle of the exhaust pipe 32 .

[0033] Specifically, the filtered flue gas is sent into the denitrification equipment 31 through the connecting pipe 3 for denitrification treatment, and the flue gas is discharged through the exhaust pipe 32. The exhausted flue gas is detected by the air detection device 33 in the middle of the exhaust pipe 32 to detect whether the exhausted flue gas meets the standard.

[0034] A rotary kiln body 4 is movably connected to one side of the filter box 1 , and a kiln tail body 41 is fixedly installed to one side of the rotary kiln body 4 .

[0035] An exhaust device 42 is fixedly installed on the top of the kiln tail body 41 , and an air outlet pipe 43 is fixedly installed on one side of the exhaust device 42 .

[0036] Specifically, the smoke exhausted from the rotary kiln body 4 enters into the interior of the kiln tail body 41 , and the smoke inside the kiln tail body 41 is sent from the interior of the outlet pipe 43 to the interior of the inlet pipe 11 through the exhaust device 42 .

[0037] Working principle: First, the rotary kiln body 4 is operated to send the smoke generated inside the rotary kiln body 4 into the kiln tail body 41, and the exhaust device 42 is operated to send the smoke inside the kiln tail body 41 from the outlet pipe 43 into the inlet pipe 11, and the smoke is sent into the filter barrel 13 inside the filter box 1 through the inlet pipe 11. The smoke passes through the filter holes around the filter barrel 13 to filter the dust and impurities in the smoke. The filter barrel 13 is sealed by the sealing ring 14 at the top and the bottom. The sealing ring 14 provides sealing support for the filter barrel 13. The flue gas filtered by the filter barrel 13 enters the interior of the connecting pipe 3 from one side of the filter box 1. The flue gas is sent to the interior of the denitration equipment 31 through the connecting pipe 3 for denitration treatment. Finally, the flue gas after filtration and denitration is discharged from the interior of the exhaust pipe 32. The flue gas discharged from the exhaust pipe 32 is detected by the air detection device 33, so as to facilitate the detection of whether the discharged flue gas exceeds the standard, thereby improving the practicality of the kiln tail flue gas filtering device. By driving the operation of the rotating shaft 15, the The movable support rod 16 and the connecting shaft 18 are rotated, so that the dust removal brush 17 on one side of the support rod 16 is adapted to rotate against the side of the filter barrel 13, so that the dust and impurities blocked in the filter hole of the filter barrel 13 are removed by the dust removal brush 17, thereby avoiding the problem of affecting the filtering amount due to the blockage of the filter barrel 13, thereby improving the practicality of the kiln tail flue gas filtering device, and through the extension and retraction of the four telescopic rods 21 at the top of the collecting box 2, the connecting plate 22 and the supporting column 23 in the middle of the top of the connecting plate 22 are pushed downward, so that the sealing block 24 seals the bottom of the filter barrel 13, so that the dust and impurities filtered out of the filter barrel 13 enter the collecting box 2 for collection, and the collecting box 2 is sealed by the sealing door 25 and the sealing plate 26 on one side of the sealing door 25, thereby avoiding the problem of flue gas being discharged from the collecting box 2 during ash discharge and causing environmental pollution, and after the ash discharge is completed, the telescopic rod 21 is retracted and the sealing door 25 is opened, so that the dust filtered out of the collecting box 2 can be cleaned, thereby improving the practicality of the kiln tail flue gas filtering device.

[0038] 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 kiln tail flue gas filtering device, characterized in that: The kiln tail flue gas filtering device comprises a filter box (1), wherein a fixing ring (12) is fixedly installed on the top of the filter box (1), a filter barrel (13) is fixedly installed inside the fixing ring (12), a sealing ring (14) is fixedly installed on the outside of the bottom of the filter barrel (13), a driving shaft (15) is fixedly installed on the top of the filter box (1), a support rod (16) is fixedly installed on one side of the bottom of the driving shaft (15), a dust removal brush (17) is fixedly installed on one side of the support rod (16), a connecting shaft (18) is fixedly installed on the bottom of the support rod (16), a collecting box (2) is fixedly installed on the bottom of the filter box (1), four telescopic rods (21) are fixedly installed around the top of the collecting box (2), a connecting plate (22) is fixedly installed at the bottom of the telescopic rod (21), a supporting column (23) is fixedly installed in the middle of the top of the connecting plate (22), and a sealing block (24) is fixedly installed on the top of the supporting column (23).

2. A kiln tail flue gas filtering device according to claim 1, characterized in that: An air intake pipe (11) is fixedly mounted on the top of the filter box (1).

3. The kiln tail flue gas filtering device according to claim 1, characterized in that: A sealing door (25) is fixedly mounted on one side of the collection box (2), and a sealing plate (26) is fixedly mounted on one side of the sealing door (25).

4. The kiln tail flue gas filtering device according to claim 1, characterized in that: A connecting pipe (3) is fixedly mounted on the bottom of one side of the filter box (1), and a denitration device (31) is fixedly mounted on one side of the connecting pipe (3).

5. The kiln tail smoke filtering device according to claim 4 is characterized in that: An exhaust pipe (32) is fixedly installed on one side of the top of the denitration equipment (31), and an air detection device (33) is fixedly installed in the middle of the exhaust pipe (32).

6. The kiln tail flue gas filtering device according to claim 1, characterized in that: One side of the filter box (1) is movably connected to a rotary kiln body (4), and one side of the rotary kiln body (4) is fixedly mounted with a kiln tail body (41).

7. The kiln tail flue gas filtering device according to claim 6, characterized in that: An exhaust device (42) is fixedly installed on the top of the kiln tail body (41), and an exhaust pipe (43) is fixedly installed on one side of the exhaust device (42).

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