Flue gas desulfurization and dust removal equipment for corn drying boiler

Abstract

The utility model relates to the technical field of flue gas desulfurization, in particular to flue gas desulfurization and dust removal equipment for a corn drying boiler, which comprises a treatment tower and a spraying unit arranged in the treatment tower, a scraping component is arranged in the treatment tower and on the lower side of the treatment tower, and the scraping component comprises a driving motor clamped on the lower side of the treatment tower. The output end of the driving motor penetrates through the lower side of the treatment tower, a scraping plate is fixedly connected to the outer side of the output end of the driving motor, crystals attached to the inner wall of the treatment tower are treated through the scraping plate, and meanwhile, stirring blades intermittently stir calcium carbonate slurry; the calcium carbonate slurry is intermittently stirred by the stirring blades, so that oxidation of the calcium carbonate slurry can be accelerated, meanwhile, the crystals can be prevented from being damaged by intermittent stirring, and the crystals attached to the inner wall of the treatment tower can be scraped by the scraping plate, so that the crystals are prevented from being attached to the inner wall of the treatment tower after being solidified.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to a flue gas desulfurization and dust removal device for a corn drying boiler. Background Art

[0002] Corn drying boiler is a kind of equipment used for corn drying, usually used in the agricultural field. Its working principle is similar to other drying boilers, which generates heat energy by burning fuel and then transfers the heat energy to corn or other agricultural products to dry them to the required moisture content.

[0003] Boilers usually use a variety of different types of fuels, such as wood, corn stalks, biomass pellets, etc. In the corn drying process, hot air is generated by the boiler and transported to the corn pile or drying equipment through pipes or fans. This method can help farmers quickly dry corn after harvesting to prevent mold and rot, and ensure the quality and shelf life of corn. The flue gas generated by the boiler during operation usually contains a large amount of pollutants such as sulfur dioxide and dust, so the flue gas needs to be desulfurized and dusted;

[0004] In the prior art, sulfur dioxide in the flue gas is fully absorbed by the calcium carbonate slurry sprayed inside the desulfurization tower and then enters the slurry pool to generate calcium sulfite, which is then oxidized with oxygen to generate calcium sulfate. The calcium sulfate crystallizes into dihydrate gypsum after saturation and is finally discharged from the slurry pool through a discharge pump. During the crystallization process, part of the dihydrate gypsum will adhere to the inner wall of the slurry pool. After the dihydrate gypsum is crystallized, it is difficult to remove from the inner wall of the slurry pool, which makes subsequent cleaning and maintenance more troublesome. Summary of the invention

[0005] The purpose of the utility model is to provide a corn drying boiler flue gas desulfurization and dust removal equipment, which can intermittently stir the calcium carbonate slurry so that the calcium carbonate slurry can be oxidized faster, and the scraper can scrape the crystals attached to the inner wall of the treatment tower, avoiding the crystals from adhering to the inner wall of the treatment tower after solidification, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corn drying boiler flue gas desulfurization and dust removal device, comprising a treatment tower and a spray unit arranged inside the treatment tower, wherein the interior and the lower side of the treatment tower are jointly provided with a scraping component, and the scraping component comprises a driving motor clamped on the lower side of the treatment tower;

[0007] The output end of the driving motor passes through the lower side of the processing tower, a scraper is fixedly connected to the outer side of the output end of the driving motor, the surface of the scraper is in sliding contact with the inner wall of the processing tower, the top of the output end of the driving motor is fixedly connected to a driving disk, the upper side of the driving disk is fixedly connected to a transmission disk, and the surface of the scraper is fixedly connected to a plurality of cutting blocks;

[0008] The interior of the processing tower and the outer side of the transmission disk are jointly provided with a stirring assembly, and the stirring assembly includes a cross bar fixedly connected to the interior of the processing tower, a stirring blade is rotatably connected to the lower side of the cross bar, and the bottom end of the stirring blade is fixedly connected to a positioning disk, and the positioning disk is sleeved on the outer side of the transmission disk.

[0009] Preferably, a first rotation groove is opened on the lower side of the positioning plate, the positioning plate is sleeved on the outer side of the transmission plate through the first rotation groove, and the transmission plate is rotatably connected in the first rotation groove.

[0010] Preferably, the first rotating groove is in a petal shape, the outer side of the inner cavity of the first rotating groove is in an arc shape, and the shape of the outer side of the transmission plate is matched with the shape of the side wall of the inner cavity of the first rotating groove.

[0011] Preferably, four fixing rods are fixedly connected to the lower side of the positioning plate, and the outer surface of the transmission plate is pressed and contacted with the outer sides of the fixing rods after rotation, and the four fixing rods are arranged in a circular array on the lower side of the positioning plate.

[0012] Preferably, a dust removal component is provided on the outside of the processing tower, and the dust removal component includes a conveying pipeline fixedly connected to the outside of the processing tower, and the conveying pipeline is in communication with the processing tower.

[0013] Preferably, a filter element is slidably connected inside the delivery pipeline, a mounting plate is fixedly connected to one side of the front side of the filter element, and one side of the back side of the mounting plate is plugged into one side of the front side of the delivery pipeline.

[0014] Preferably, two second rotation grooves are provided on both sides of the mounting plate, two limiting grooves are provided on both sides of the interior of the conveying pipe, the second rotation groove is connected with the limiting groove, and the second rotation groove and the limiting groove are combined to form a disc shape.

[0015] Preferably, a rotating disk is rotatably connected inside the second rotating groove, and a rotating rod is fixedly connected to one end of the front side of the rotating disk. The rotating rod passes through one side of the front side of the mounting plate, and the rotating disk is rotatably connected in the limiting groove after rotation.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The crystals attached to the inner wall of the treatment tower are treated by a scraper, and the stirring blades intermittently stir the calcium carbonate slurry. Since the driving motor drives the driving disk to rotate, the stirring blades intermittently stir the calcium carbonate slurry, so that the calcium carbonate slurry can be oxidized faster. At the same time, intermittent stirring can avoid damage to the crystals, and the scraper can scrape off the crystals attached to the inner wall of the treatment tower, avoiding the crystals from being attached to the inner wall of the treatment tower after solidification;

[0018] 2. Lock the mounting plate by rotating the disk, and after locking contact, pull out the filter element by the rotating rod. Since the smoke is filtered by the filter element, the smoke can be discharged normally. After rotating the rotating rod, the mounting plate and the filter element can be pulled with the help of the rotating rod, so that the filter element can be quickly taken out from the inside of the conveying pipeline, so as to facilitate the replacement or cleaning of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the overall structural view of the utility model;

[0021] Figure 2 It is a schematic diagram of a half-section structure of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the scraper of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the positioning plate of the utility model;

[0024] Figure 5 It is a schematic diagram of the half-section structure of the mounting plate of the utility model.

[0025] Description of reference numerals:

[0026] 1. Treatment tower; 2. Spray unit; 3. Scraping component; 31. Driving motor; 32. Scraper; 33. Driving disk; 34. Transmission disk; 35. Cutting block; 36. Stirring assembly; 361. Cross bar; 362. Stirring blade; 363. Positioning disk; 364. First rotating groove; 365. Fixed rod; 4. Dust removal component; 41. Delivery pipeline; 42. Filter element; 43. Mounting plate; 44. Second rotating groove; 45. Limiting groove; 46. Rotating disk; 47. Rotating rod. DETAILED DESCRIPTION

[0027] 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.

[0028] The utility model provides a technical solution:

[0029] See also Figures 1 to 5 A corn drying boiler flue gas desulfurization and dust removal device comprises a treatment tower 1 and a spray unit 2 arranged inside the treatment tower 1, a scraper component 3 is provided inside and below the treatment tower 1, and the scraper component 3 comprises a driving motor 31 clamped on the lower side of the treatment tower 1;

[0030] The output end of the driving motor 31 passes through the lower side of the processing tower 1, and a scraper 32 is fixedly connected to the outer side of the output end of the driving motor 31. The surface of the scraper 32 is in sliding contact with the inner wall of the processing tower 1. The top of the output end of the driving motor 31 is fixedly connected to a driving disk 33, and the upper side of the driving disk 33 is fixedly connected to a transmission disk 34. A plurality of cutting blocks 35 are fixedly connected to the surface of the scraper 32.

[0031] A stirring assembly 36 is provided inside the processing tower 1 and outside the transmission disk 34. The stirring assembly 36 includes a cross bar 361 fixedly connected to the inside of the processing tower 1, and a stirring blade 362 is rotatably connected to the lower side of the cross bar 361. The bottom end of the stirring blade 362 is fixedly connected to a positioning disk 363, and the positioning disk 363 is sleeved on the outside of the transmission disk 34.

[0032] A first rotation groove 364 is formed at the lower side of the positioning plate 363 . The positioning plate 363 is sleeved on the outer side of the transmission plate 34 through the first rotation groove 364 . The transmission plate 34 is rotationally connected in the first rotation groove 364 .

[0033] The first rotating groove 364 is in a petal shape, the outer side of the inner cavity of the first rotating groove 364 is in an arc shape, and the shape of the outer side of the transmission plate 34 is adapted to the shape of the inner cavity side wall of the first rotating groove 364 .

[0034] Four fixing rods 365 are fixedly connected to the lower side of the positioning plate 363 . The outer surface of the transmission plate 34 is pressed and contacted with the outer sides of the fixing rods 365 after rotation. The four fixing rods 365 are arranged in a circular array on the lower side of the positioning plate 363 .

[0035] By adopting the above technical solution, first, after the flue gas is sent into the treatment tower 1, the spray unit 2 sprays out the calcium carbonate slurry, and the calcium carbonate slurry mixes with the sulfur dioxide in the flue gas and falls into the deep part of the treatment tower 1. The calcium carbonate slurry is saturated with sulfur dioxide to produce crystals. At this time, the drive motor 31 is started to drive the transmission disk 34 to rotate, and the output end of the drive motor 31 will drive the scraper 32 to rotate. Since the scraper 32 is in contact with the inner wall of the treatment tower 1, the scraper 32 will scrape off the crystals attached to the inner wall of the treatment tower 1 after rotation. At the same time, the transmission disk 34 on the upper side of the drive disk 33 is in the first rotating groove 364 below the positioning disk 363. When the drive disk 33 rotates, the drive disk 33 will rotate the positioning disk 363 below. The fixed rod 365 is pushed, and the transmission disk 34 will rotate inside the first rotating disk 46, and drive the stirring blade 362 above the positioning disk 363 to rotate. Because the top of the stirring blade 362 rotates inside the cross bar 361, the stirring blade 362 can intermittently stir the crystals. When the driving disk 33 is separated from the fixed rod 365, the positioning disk 363 stops rotating. Since the driving motor 31 drives the driving disk 33 to rotate, the stirring blade 362 intermittently stirs the calcium carbonate slurry, so that the calcium carbonate slurry can be oxidized faster. At the same time, intermittent stirring can avoid damage to the crystals, and the scraper 32 can scrape off the crystals attached to the inner wall of the processing tower 1 to avoid the crystals from being attached to the inner wall of the processing tower 1 after solidification.

[0036] Specifically, Figure 4 As shown, a dust removal component 4 is provided on the outside of the processing tower 1 . The dust removal component 4 includes a conveying pipe 41 fixedly connected to the outside of the processing tower 1 . The conveying pipe 41 is in communication with the processing tower 1 .

[0037] A filter element 42 is slidably connected inside the delivery pipe 41 , a mounting plate 43 is fixedly connected to one side of the front of the filter element 42 , and one side of the back of the mounting plate 43 is plugged into one side of the front of the delivery pipe 41 .

[0038] Two second rotation grooves 44 are formed on both sides of the mounting plate 43 , and two limiting grooves 45 are formed on both sides of the conveying pipe 41 . The second rotation grooves 44 are connected to the limiting grooves 45 , and the second rotation grooves 44 and the limiting grooves 45 are combined to form a disc shape.

[0039] A rotating disk 46 is rotatably connected inside the second rotating groove 44 , and a rotating rod 47 is fixedly connected to one end of the front side of the rotating disk 46 . The rotating rod 47 passes through one side of the front side of the mounting plate 43 . After the rotating disk 46 rotates, it is rotatably connected to the limiting groove 45 .

[0040] By adopting the above technical solution, first, the flue gas in which sulfur dioxide is absorbed by the calcium carbonate slurry will flow upward and enter the interior of the conveying pipe 41, and the flue gas can be discharged normally after being dusted by the filter element 42. When the filter element 42 needs to be removed from the interior of the conveying pipe 41, the rotating rod 47 is rotated to drive the rotating disk 46 to rotate inside the second rotating groove 44. When the rotating disk 46 is completely separated from the interior of the limiting groove 45 and is located in the interior of the second rotating groove 44, the mounting plate 43 will lose the restriction from the limiting plate, so that the mounting plate 43 can be pulled by the rotating rod 47 and drive the filter element 42 to separate from the interior of the conveying pipe 41. Since the flue gas is filtered by the filter element 42, the flue gas can be discharged normally. After rotating the rotating rod 47, the mounting plate 43 and the filter element 42 can be pulled by the rotating rod 47, so that the filter element 42 can be quickly taken out from the interior of the conveying pipe 41, so as to facilitate the replacement or cleaning of the filter element 42.

[0041] Working principle: First, after the flue gas is treated by the calcium carbonate slurry sprayed by the spray unit 2, the driving motor 31 is started to drive the transmission disc 34 to rotate, and at the same time drive the scraper 32 to scrape the crystals attached to the inner wall of the treatment tower 1, and the transmission disc 34 on the upper side of the driving disc 33 is in the first rotating groove 364 below the positioning disc 363. The driving disc 33 will push the fixed rod 365 below the positioning disc 363 and drive the stirring blade 362 above the positioning disc 363 to rotate. Because the upper part of the stirring blade 362 rotates inside the cross bar 361, the stirring blade 362 can intermittently stir the crystals. When the driving disc After the filter element 42 is removed from the conveying pipe 41, the rotating rod 47 drives the rotating disk 46 to rotate in the second rotating groove 44. When the rotating disk 46 is completely separated from the limiting groove 45 and is in the second rotating groove 44, the mounting plate 43 loses the restriction from the limiting plate, so that the mounting plate 43 can be pulled by the rotating rod 47 and drives the filter element 42 to separate from the conveying pipe 41.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A corn drying boiler flue gas desulfurization and dust removal device, comprising a treatment tower (1) and a spray unit (2) arranged inside the treatment tower (1), characterized in that: A scraping component (3) is provided inside and on the lower side of the processing tower (1), and the scraping component (3) comprises a driving motor (31) clamped on the lower side of the processing tower (1); The output end of the drive motor (31) passes through the lower side of the processing tower (1); a scraper (32) is fixedly connected to the outer side of the output end of the drive motor (31); the surface of the scraper (32) is in sliding contact with the inner wall of the processing tower (1); a drive disk (33) is fixedly connected to the top of the output end of the drive motor (31); a transmission disk (34) is fixedly connected to the upper side of the drive disk (33); and a plurality of cutting blocks (35) are fixedly connected to the surface of the scraper (32); A stirring assembly (36) is provided inside the processing tower (1) and outside the transmission disk (34). The stirring assembly (36) comprises a cross bar (361) fixedly connected inside the processing tower (1). A stirring blade (362) is rotatably connected inside the lower side of the cross bar (361). A positioning disk (363) is fixedly connected to the bottom end of the stirring blade (362). The positioning disk (363) is sleeved on the outside of the transmission disk (34).

2. A corn drying boiler flue gas desulfurization and dust removal equipment according to claim 1, characterized in that: A first rotating groove (364) is provided on the lower side of the positioning plate (363), and the positioning plate (363) is sleeved on the outer side of the transmission plate (34) through the first rotating groove (364), and the transmission plate (34) is rotatably connected in the first rotating groove (364).

3. A corn drying boiler flue gas desulfurization and dust removal equipment according to claim 2, characterized in that: The first rotating groove (364) is in a petal shape, the outer side of the inner cavity of the first rotating groove (364) is in an arc shape, and the shape of the outer side of the transmission plate (34) is compatible with the shape of the inner cavity side wall of the first rotating groove (364).

4. A corn drying boiler flue gas desulfurization and dust removal equipment according to claim 2, characterized in that: Four fixing rods (365) are fixedly connected to the lower side of the positioning plate (363); the outer surface of the transmission plate (34) is pressed into contact with the outer sides of the fixing rods (365) after rotation; and the four fixing rods (365) are arranged in a circular array on the lower side of the positioning plate (363).

5. The corn drying boiler flue gas desulfurization and dust removal equipment according to claim 1 is characterized in that: A dust removal component (4) is provided on the outside of the processing tower (1), and the dust removal component (4) comprises a conveying pipeline (41) fixedly connected to the outside of the processing tower (1), and the conveying pipeline (41) is connected to the processing tower (1).

6. A corn drying boiler flue gas desulfurization and dust removal equipment according to claim 5, characterized in that: A filter element (42) is slidably connected inside the delivery pipe (41), a front side of the filter element (42) is fixedly connected to a mounting plate (43), and a back side of the mounting plate (43) is plugged into a front side of the delivery pipe (41).

7. A corn drying boiler flue gas desulfurization and dust removal equipment according to claim 6, characterized in that: Two second rotation grooves (44) are provided on both sides of the mounting plate (43), and two limiting grooves (45) are provided on both sides of the interior of the delivery pipe (41). The second rotation groove (44) is connected to the limiting groove (45), and the second rotation groove (44) and the limiting groove (45) are combined to form a disc shape.

8. The corn drying boiler flue gas desulfurization and dust removal equipment according to claim 7, characterized in that: A rotating disk (46) is rotatably connected inside the second rotating groove (44), and a rotating rod (47) is fixedly connected to one end of the front side of the rotating disk (46). The rotating rod (47) passes through one side of the front side of the mounting plate (43). After the rotating disk (46) rotates, it is rotatably connected to the limiting groove (45).

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