Flue gas dry desulfurization and denitrification dust removal device

Abstract

The utility model discloses a flue gas dry desulfurization, denitrification and dust removal device, and relates to the technical field of desulfurization, denitrification and dust removal equipment. A flue gas dry desulfurization and denitrification dust removal device comprises a deacidification box, a gas inlet of the deacidification box is communicated with a boiler through a gas pipe, the side, away from the boiler, of the deacidification box is communicated with a three-way pipe, dust removal boxes are symmetrically arranged at the end, away from the deacidification box, of the three-way pipe, and two gas outlet pipes of the three-way pipe are communicated with the two dust removal boxes respectively. The dedusting device comprises a dedusting box, a deacidification box is arranged in the dedusting box, a decomposition assembly is arranged in the dedusting box, an air outlet chimney is arranged on the side, away from the deacidification box, of the dedusting box, and an air outlet pipe of the decomposition assembly is communicated with the air outlet chimney. And when the dust removal box in work needs to be overhauled, the flue gas enters another dust removal box through the three-way pipe, so that the working efficiency and the decomposition effect of the desulfurization and denitrification dust removal equipment are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of desulfurization, denitration and dust removal equipment, and specifically relates to a flue gas dry desulfurization, denitration and dust removal device. Background Art

[0002] Dry desulfurization, also known as dry flue gas desulfurization, refers to the use of powdered or granular absorbents, adsorbents or catalysts to remove sulfide-containing gases from flue gas.

[0003] After working for a long time, a large amount of impurities will adhere to the surface of the adsorption tube of the existing desulfurization, denitrification and dust removal equipment, and the impurities will continue to pile up on the adsorption tube after working for a long time, so that the impurities may block the flue gas from entering the adsorption tube, affecting the equipment's flue gas treatment rate and effect, and the staff needs to regularly maintain and replace the equipment, while flue gas will continue to be generated in industrial production, and maintenance will affect the work progress. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a flue gas dry desulfurization, denitrification and dust removal device which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is: a flue gas dry desulfurization, denitrification and dust removal device, including a deacidification box, the air inlet of the deacidification box is connected to the boiler through an air pipe, the side of the deacidification box away from the boiler is connected to a three-way pipe, the end of the three-way pipe away from the deacidification box is symmetrically provided with a dust removal box, the two outlet pipes of the three-way pipe are respectively connected to two dust removal boxes, a decomposition assembly is arranged in the dust removal box, and an air outlet chimney is arranged on the side of the dust removal box away from the deacidification box, and the air outlet pipe of the decomposition assembly is connected to the air outlet chimney.

[0006] In order to scrape off the dust on the decomposition tube of the decomposition component, a scraper is further arranged under the decomposition component, the scraper is provided with openings corresponding to the positions of the decomposition tube of the decomposition component, and a lifting component for moving the scraper is provided in the dust removal box.

[0007] Furthermore, the lifting assembly includes a second motor, a slot is provided on the dust removal box, a rotating rod is rotatably connected in the slot, the output end of the second motor is fixedly connected to the rotating rod, and the rotating rod is threadedly connected to the scraper.

[0008] In order to prevent the decomposition tube of the decomposition component from being scratched, a rubber ring is further provided on the scraper at the opening.

[0009] In order to facilitate the inspection and maintenance of the components in the dust removal box, further, the dust removal box is hingedly connected with a door panel.

[0010] In order to facilitate the centralized removal of dust for processing, a dust collection box is further provided at the lower end of the dust removal box.

[0011] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: compared with the existing desulfurization, denitrification and dust removal equipment, the utility model controls the scraper to scrape the dust on the decomposition tube through the lifting component, and when the working dust removal box needs to be inspected and repaired, the flue gas is allowed to enter another dust removal box through the three-way pipe, which effectively improves the working efficiency and decomposition effect of the desulfurization, denitrification and dust removal equipment.

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In the attached picture:

[0014] Figure 1 This is a schematic diagram of the structure of a flue gas dry desulfurization, denitrification and dust removal device proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a dust removal box in a flue gas dry desulfurization, denitrification and dust removal device proposed by the utility model;

[0016] Figure 3 The utility model provides a cross-sectional view of a dust removal box in a flue gas dry desulfurization, denitrification and dust removal device.

[0017] In the figure: 1. boiler; 2. deacidification box; 3. chimney; 4. three-way pipe; 5. dust removal box; 501. door panel; 502. dust collection box; 6. second motor; 601. rotating rod; 7. disassembly assembly; 8. scraper; 9. rubber ring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0019] Embodiment 1:

[0020] Reference Figure 1-Figure 3A flue gas dry desulfurization, denitrification and dust removal device comprises a deacidification box decomposition pipe 2 decomposition pipe, the air inlet of the decomposition pipe ...

[0021] A scraper decomposition tube 8 is arranged below the decomposition tube 7 of the decomposition assembly, and an opening corresponding to the position of the decomposition tube of the decomposition tube 7 of the decomposition assembly is opened on the scraper decomposition tube 8, and a lifting component for moving the scraper decomposition tube 8 is opened in the decomposition tube of the dust removal box decomposition tube 5;

[0022] The lifting assembly includes a second motor 6 , a slot is formed on the dust removal box 5 , a rotating rod 601 is rotatably connected in the slot, an output end of the second motor 6 is fixedly connected to the rotating rod 601 , and the rotating rod 601 is threadedly connected to the scraper 8 .

[0023] When it is necessary to perform desulfurization, denitrification and dust removal on the flue gas, the flue gas enters the deacidification box 2 for deacidification treatment, and then enters the dust removal box 5. The flue gas moves in the dust removal box 5. At this time, the decomposition component 7 works to isolate the dust outside and decomposes the flue gas. The decomposed flue gas completes the desulfurization, denitrification and dust removal treatment. At this time, the flue gas enters the chimney 3 along the outlet pipe of the decomposition component 7, and is then discharged into the air. In the dust removal box 5, the decomposition tube of the decomposition component 7 becomes longer with the use time, and a layer of dust is attached to the surface. At this time, the second motor 6 works, and the rotating rod 601 rotates to make the scraper 8 move up and down to remove the dust on the decomposition tube. Dust is scraped off to prevent ash from affecting the decomposition effect of the decomposition tube. When the staff needs to regularly maintain or repair the dust removal box 5 in use, the valve in the decomposition tube of the three-way pipe 4 is notified to allow the flue gas to enter another dust removal box 5 for work, and the flue gas is desulfurized, denitrated and dusted. Compared with the existing desulfurization, denitrification and dust removal equipment, the scraper 8 is controlled by the lifting component to scrape off the dust on the decomposition tube, and when the working dust removal box 5 needs to be inspected, the flue gas is allowed to enter another dust removal box 5 through the decomposition tube of the three-way pipe 4, which effectively improves the working efficiency and decomposition effect of the desulfurization, denitrification and dust removal equipment.

[0024] Embodiment 2:

[0025] Reference Figure 1-Figure 3A flue gas dry desulfurization, denitrification and dust removal device is basically the same as Example 1. Furthermore, a rubber ring 9 is provided at the opening of the scraper decomposition tube 8. The setting of the rubber ring 9 can prevent the scraper decomposition tube 8 from directly contacting the decomposition tube and causing scratches on the decomposition tube.

[0026] The dust removal box 5 is hingedly connected with a door panel 501 , and the dust removal box 5 is opened by rotating the door panel 501 , so that the components in the dust removal box 5 can be inspected and repaired.

[0027] A dust collecting box 502 is provided at the lower end of the dust removal box 5 to collect the dust scraped and dropped to the bottom of the box, so as to facilitate the centralized removal of the dust for processing.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A flue gas dry desulfurization, denitrification and dust removal device, characterized in that: The invention comprises a deacidification box (2), wherein the air inlet of the deacidification box (2) is connected to the boiler (1) through an air pipe, the side of the deacidification box (2) away from the boiler (1) is connected to a three-way pipe (4), the end of the three-way pipe (4) away from the deacidification box (2) is symmetrically provided with a dust removal box (5), the two air outlet pipes of the three-way pipe (4) are respectively connected to the two dust removal boxes (5), a decomposition component (7) is arranged in the dust removal box (5), the side of the dust removal box (5) away from the deacidification box (2) is provided with an air outlet chimney (3), and the air outlet pipe of the decomposition component (7) is connected to the air outlet chimney (3).

2. A flue gas dry desulfurization, denitrification and dust removal device according to claim 1, characterized in that: A scraper (8) is provided below the decomposition component (7), and an opening corresponding to the position of the decomposition tube of the decomposition component (7) is provided on the scraper (8). A lifting component for moving the scraper (8) is provided in the dust removal box (5).

3. A flue gas dry desulfurization, denitrification and dust removal device according to claim 2, characterized in that: The lifting assembly comprises a second motor (6), a groove is provided on the dust removal box (5), a rotating rod (601) is rotatably connected in the groove, an output end of the second motor (6) is fixedly connected to the rotating rod (601), and the rotating rod (601) is threadedly connected to the scraper (8).

4. A flue gas dry desulfurization, denitrification and dust removal device according to claim 2, characterized in that: A rubber ring (9) is provided on the scraper (8) at the opening.

5. The flue gas dry desulfurization, denitrification and dust removal device according to claim 1, characterized in that: The dust removal box (5) is hingedly connected to a door panel (501).

6. A flue gas dry desulfurization, denitrification and dust removal device according to claim 5, characterized in that: A dust collecting box (502) is provided at the lower end of the interior of the dust removal box (5).

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