Desulfurization and dust removal device with backflushing structure

Abstract

The utility model relates to the technical field of flue gas treatment, and particularly discloses a desulfurization and dust removal device with a back-flushing structure, which comprises a desulfurization tower, a spraying component is arranged in the desulfurization tower, a shunting bin is arranged at the front end of the desulfurization tower, and a gas inlet head is arranged at the front end of the shunting bin. A first back-flushing pipe and a second back-flushing pipe are arranged between the shunting bin and the desulfurizing tower, and the second back-flushing pipe is positioned below the first back-flushing pipe; the recoil mechanism comprises a first plug and a second plug which are installed in the flow dividing bin, the first plug is located above the second plug, a first connecting rod is arranged on one side of the first plug, a second connecting rod is arranged on one side of the second plug, and one end of the first connecting rod and one end of the second connecting rod are connected with a connecting piece. The other ends of the first connecting rod and the second connecting rod are connected with a third connecting rod. According to the utility model, the first backflushing pipe and the second backflushing pipe can be opened alternately, so that flue gas can enter the desulfurization tower through the opened backflushing pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a desulfurization and dust removal device with a backflush structure. Background Technique

[0002] A desulfurization and dust removal device is a device that can remove sulfides and particulate matter in flue gas to purify the flue gas. Generally, it is a wet desulfurization dust collector that uses oxidants (such as chlorine gas and sodium chloride, etc.) to chemically react with sulfides in the flue gas to generate sulfates that are easily soluble.

[0003] When the desulfurization and dust removal device treats flue gas, it will first remove dust from the flue gas through a filter screen. After the filter screen is used for a period of time, the filter screen needs to be cleaned to ensure that the flue gas can pass through the filter screen smoothly.

[0004] In the existing public technical solution, the publication number CN220589313U discloses a desulfurization and dust removal device. A backflush assembly is arranged on one side of the filter screen. The backflush assembly is driven by a rack, and the driven gear rotates. The backflush assembly can backflush the filter screen, so that all the filter screen holes are cleared. Compared with the process of manual cleaning, it is not only fast and efficient, but also the worker does not come into contact with the dust intercepted by the filter screen during the whole process, and the physical health of the worker is also protected to a certain extent.

[0005] When the above technical solution is actually implemented, since only one set of inlet pipes is provided, when the filter screen needs to be cleaned, the valve on the inlet pipe needs to be closed, and the entire desulfurization and dust removal device is in a shutdown state. It can only work when the valve on the inlet pipe is reopened, and it is impossible to clean the filter screen online when the desulfurization and dust removal device is working normally. Summary of the Invention

[0006] The purpose of the utility model is to provide a desulfurization and dust removal device with a backflush structure, which can ensure that the flue gas can enter the interior of the desulfurization tower through the opened backflush pipe by alternately opening the first backflush pipe and the second backflush pipe, so as to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A desulfurization and dust removal device with a backflush structure, including a desulfurization tower, a spraying assembly is arranged inside the desulfurization tower, and a diversion chamber is arranged at the front end of the desulfurization tower. An air inlet head is arranged at the front end of the diversion chamber. A first backflush pipe and a second backflush pipe are arranged between the diversion chamber and the desulfurization tower, and the second backflush pipe is located below the first backflush pipe. A backflush mechanism is arranged inside the diversion chamber, and an ash storage bin is arranged below the backflush mechanism. Filter screens are arranged inside the first backflush pipe and the second backflush pipe, and a backflush plate is arranged on one side of the filter screen. One end of the backflush plate is connected with a backflush air pipe.

[0008] The recoil mechanism includes a first plug and a second plug installed inside the shunt bin. The first plug is located above the second plug. A first connecting rod is provided on one side of the first plug, and a second connecting rod is provided on one side of the second plug. One end of the first connecting rod and the second connecting rod is connected with a connecting piece, and the other end of the first connecting rod and the second connecting rod is connected with a third connecting rod. A transmission rod is provided in the middle of the third connecting rod.

[0009] Preferably, feed rods are provided on the surfaces of the first plug and the second plug, and transmission racks are installed at the ends of the feed rods. A rotating gear is provided on one side of the transmission rack, and a rotating rod is fixedly connected to the middle of the rotating gear. The rotating rod is fixed on the recoil plate.

[0010] Preferably, the feed rods penetrate through the inside of the shunt bin. One group of the feed rods is installed above the first plug, and the other group of the feed rods is installed below the second plug.

[0011] Preferably, the first plug and the second plug are respectively arranged in one-to-one correspondence with the first recoil pipe and the second recoil pipe, and the diameters of the first plug and the second plug are larger than the inner diameters of the first recoil pipe and the second recoil pipe.

[0012] Preferably, the two connecting pieces are respectively fixed on the sides of the first plug and the second plug away from the filter screen. The first plug and the second plug are respectively pin-connected to the first connecting rod and the second connecting rod through the connecting pieces.

[0013] Preferably, the first connecting rod and the second connecting rod are respectively connected to the two ends of the third connecting rod through pin shafts. Guide telescopic rods are arranged between the first plug, the second plug and the filter screen.

[0014] Preferably, the spraying assembly includes a spraying support fixed inside the desulfurization tower. A plurality of spray heads are evenly distributed at equal intervals below the spraying support. A liquid inlet pipe communicating with the spray heads is provided on one side of the spraying support.

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

[0016] 1. Through the provided recoil mechanism, the flue gas in the shunt bin can be shunted, enabling the first recoil pipe and the second recoil pipe to be alternately opened, ensuring that the flue gas can enter the inside of the desulfurization tower through the opened recoil pipe, and at the same time, the filter screen in the closed recoil pipe is cleaned. During this process, there is no need to stop the machine for operation, and the normal treatment of the flue gas will not be affected.

[0017] 2. The reciprocating motion of the first plug and the second plug can be achieved through the provided first connecting rod, second connecting rod, and third connecting rod, thereby achieving the effect of alternately opening the first backflush pipe and the second backflush pipe. Moreover, as the first plug and the second plug move, the backflush plate is driven to rotate, so as to achieve the effect of backflushing the filter screen by the backflush plate. Description of the Drawings

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the overall structural view of the present invention;

[0020] Figure 2 It is the schematic diagram of the partial structure of the desulfurization tower of the present invention in half-section;

[0021] Figure 3 It is the schematic diagram of the structure of the backflush mechanism of the present invention;

[0022] Figure 4 It is the schematic diagram of the structure of the backflush plate of the present invention.

[0023] Description of the Reference Numerals in the Drawings:

[0024] 1. Desulfurization tower; 2. Spraying assembly; 201. Liquid inlet pipe; 202. Spraying support; 203. Spraying head; 3. Air inlet head; 4. Shunt bin; 5. Backflush mechanism; 501. First plug; 502. Second plug; 503. Feeding rod; 504. Guiding telescopic rod; 505. Connecting piece; 506. First connecting rod; 507. Second connecting rod; 508. Third connecting rod; 509. Transmission rod; 510. Rotating gear; 511. Transmission rack; 512. Rotating rod; 6. First backflush pipe; 7. Second backflush pipe; 8. Filter screen; 9. Backflush plate; 10. Backflush air pipe. Specific Embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a technical solution:

[0027] Please refer to Figures 1 to 4 Figures 1 to 4 , a desulfurization and dust removal device with a recoil structure, including a desulfurization tower 1, a spray component 2 is arranged inside the desulfurization tower 1, and a shunt bin 4 is arranged at the front end of the desulfurization tower 1. An air inlet head 3 is arranged at the front end of the shunt bin 4. A first recoil pipe 6 and a second recoil pipe 7 are arranged between the shunt bin 4 and the desulfurization tower 1, and the second recoil pipe 7 is located below the first recoil pipe 6. A recoil mechanism 5 is arranged inside the shunt bin 4, and an ash storage bin is arranged below the recoil mechanism 5. Filter meshes 8 are arranged inside both the first recoil pipe 6 and the second recoil pipe 7, and a recoil plate 9 is arranged on one side of the filter mesh 8. One end of the recoil plate 9 is connected to a recoil air pipe 10;

[0028] The recoil mechanism 5 includes a first plug 501 and a second plug 502 installed inside the shunt bin 4. The first plug 501 is located above the second plug 502. A first connecting rod 506 is arranged on one side of the first plug 501, and a second connecting rod 507 is arranged on one side of the second plug 502. One end of the first connecting rod 506 and the second connecting rod 507 is connected to a connecting piece 505, and the other end of the first connecting rod 506 and the second connecting rod 507 is connected to a third connecting rod 508. A transmission rod 509 is arranged in the middle of the third connecting rod 508. Preferably, the first plug 501 and the second plug 502 are respectively arranged in one-to-one correspondence with the first recoil pipe 6 and the second recoil pipe 7, and the diameters of the first plug 501 and the second plug 502 are larger than the inner diameters of the first recoil pipe 6 and the second recoil pipe 7;

[0029] Two groups of connecting pieces 505 are respectively fixed on the sides of the first plug 501 and the second plug 502 away from the filter mesh 8. The first plug 501 and the second plug 502 are respectively pin-connected to the first connecting rod 506 and the second connecting rod 507 through the connecting pieces 505. The first connecting rod 506 and the second connecting rod 507 are respectively connected to both ends of the third connecting rod 508 through pin shafts. Guide telescopic rods 504 are arranged between the first plug 501 and the second plug 502 and the filter mesh 8.

[0030] By adopting the above technical solution, a reciprocating motor is installed on one side of the transmission rod 509. When the reciprocating motor works, it can drive the transmission rod 509 to rotate, thereby driving the third connecting rod 508 to rotate. When the third connecting rod 508 makes a reciprocating rotation, it can pull the first connecting rod 506 and the second connecting rod 507 to rotate. At this time, the ends of the first connecting rod 506 and the second connecting rod 507 alternately move from the side close to the filter net 8 to the side away from the filter net 8. Taking the second connecting rod 507 pushing the second plug 502 to move from the side close to the filter net 8 as an example, at this time, the first connecting rod 506 pulls the first plug 501 to move away from the filter net 8. The second plug 502 abuts against the second backflush pipe 7. At this time, the second plug 502 blocks the second backflush pipe 7, and the flue gas in the shunt chamber 4 enters the desulfurization tower 1 through the first backflush pipe 6. Since guide telescopic rods 504 are arranged between both the first plug 501 and the second plug 502 and the filter net 8, the guide telescopic rods 504 expand and contract as the first plug 501 and the second plug 502 move. At the same time, the guide telescopic rods 504 play a guiding role. When the second backflush pipe 7 is blocked, the filter net 8 in the second backflush pipe 7 can be cleaned. Similarly, after the second connecting rod 507 moves away from the second backflush pipe 7, the first plug 501 abuts against the first backflush pipe 6, and the flue gas enters the spray assembly 2 through the second backflush pipe 7. Thus, by alternately opening the first backflush pipe 6 and the second backflush pipe 7, it can be ensured that the flue gas can always enter the interior of the desulfurization tower 1, and the filter net 8 can be cleaned in the closed pipeline. During this process, there is no need to stop the machine for operation, and the normal treatment of the flue gas will not be affected.

[0031] Specifically, as Figure 2 and Figure 4 shown, feed rods 503 are arranged on the surfaces of both the first plug 501 and the second plug 502, and transmission racks 511 are installed at the ends of the feed rods 503. A rotating gear 510 is arranged on one side of the transmission rack 511, and a rotating rod 512 is fixedly connected to the middle of the rotating gear 510. The rotating rod 512 is fixed on the backflush plate 9. The feed rods 503 penetrate through the interior of the shunt chamber 4. One group of feed rods 503 is installed above the first plug 501, and the other group of feed rods 503 is installed below the second plug 502. The spray assembly 2 includes a spray bracket 202 fixed inside the desulfurization tower 1, and a number of spray heads 203 are evenly distributed at equal intervals below the spray bracket 202. A liquid inlet pipe 201 communicating with the spray heads 203 is arranged on one side of the spray bracket 202.

[0032] By adopting the above technical solution, during the movement of the first plug 501 and the second plug 502, when the first plug 501 or the second plug 502 moves from the side close to the filter screen 8, it can push the feed rod 503 to move in the shunt chamber 4, thereby driving the rotation gear 510 to rotate through the transmission rack 511, causing the backflush plate 9 to rotate. When the first plug 501 abuts against the first backflush pipe 6, the air outlet direction of the backflush plate 9 faces the filter screen 8 in the first backflush pipe 6. At this time, after the backflush air pipe 10 is ventilated, it backflushes the filter screen 8 in the first backflush pipe 6, thereby cleaning the filter screen 8 in the first backflush pipe 6. On the contrary, the air outlet direction of the backflush plate 9 in the second backflush pipe 7 is parallel to the filter screen 8, which can ensure the smooth passage of the flue gas. After the flue gas enters the desulfurization tower 1, liquid can be introduced through the liquid inlet pipe 201 and sprayed in the desulfurization tower 1 through the spray head 203 to carry out desulfurization treatment on the flue gas.

[0033] Working principle: The flue gas enters the shunt chamber 4 through the air inlet head 3. At this time, the reciprocating motor on the transmission rod 509 is started. After the transmission rod 509 rotates, it drives the first connecting rod 506 and the second connecting rod 507 to rotate through the third connecting rod 508. The first plug 501 and the second plug 502 respectively connected to the first connecting rod 506 and the second connecting rod 507 move under the action of the connecting member 505. First, the first plug 501 abuts against the first backflush pipe 6. At this time, the first plug 501 drives the feed rod 503 to move in the shunt chamber 4, and drives the rotation gear 510 to rotate through the transmission rack 511, causing the backflush plate 9 to rotate. After the backflush air pipe 10 is ventilated, it backflushes the filter screen 8 in the first backflush pipe 6. The flue gas enters the desulfurization tower 1 from the second backflush pipe 7, liquid is introduced through the liquid inlet pipe 201 and sprayed in the desulfurization tower 1 through the spray head 203 to carry out desulfurization treatment on the flue gas. When it is necessary to backflush the filter screen 8 in the second backflush pipe 7, the reciprocating motor rotates in the reverse direction, causing the second plug 502 to abut against the second backflush pipe 7 and opening the first backflush pipe 6.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A desulfurization and dust removal device with a recoil structure, comprising a desulfurization tower (1), characterized in that: Inside the desulfurization tower (1), a spraying assembly (2) is provided, and a shunt bin (4) is provided at the front end of the desulfurization tower (1). An air inlet head (3) is provided at the front end of the shunt bin (4). A first backflush pipe (6) and a second backflush pipe (7) are provided between the shunt bin (4) and the desulfurization tower (1), and the second backflush pipe (7) is located below the first backflush pipe (6). An anti-flushing mechanism (5) is provided inside the shunt bin (4), and an ash storage bin is provided below the anti-flushing mechanism (5). Filter meshes (8) are provided inside both the first backflush pipe (6) and the second backflush pipe (7), and a backflush plate (9) is provided on one side of the filter mesh (8). One end of the backflush plate (9) is connected to a backflush air pipe (10). The anti-flushing mechanism (5) includes a first plug (501) and a second plug (502) installed inside the shunt bin (4). The first plug (501) is located above the second plug (502). A first connecting rod (506) is provided on one side of the first plug (501), and a second connecting rod (507) is provided on one side of the second plug (502). One end of the first connecting rod (506) and the second connecting rod (507) is connected to a connecting piece (505), and the other end of the first connecting rod (506) and the second connecting rod (507) is connected to a third connecting rod (508). A transmission rod (509) is provided in the middle of the third connecting rod (508).

2. The desulfurization and dust removal device with a recoil structure according to claim 1, characterized in that: Feeding rods (503) are provided on the surfaces of both the first plug (501) and the second plug (502), and a transmission rack (511) is installed at the end of the feeding rod (503). A rotating gear (510) is provided on one side of the transmission rack (511), and a rotating rod (512) is fixedly connected to the middle of the rotating gear (510). The rotating rod (512) is fixed on the backflush plate (9).

3. The desulfurization and dust removal device with a recoil structure according to claim 2, wherein: The feeding rod (503) penetrates through the inside of the shunt bin (4). One group of the feeding rods (503) is installed above the first plug (501), and the other group of the feeding rods (503) is installed below the second plug (502).

4. A desulfurization and dust removal device with a recoil structure according to claim 1, characterized in that: The first plug (501) and the second plug (502) are respectively arranged in one-to-one correspondence with the first backflush pipe (6) and the second backflush pipe (7), and the diameters of the first plug (501) and the second plug (502) are larger than the inner diameters of the first backflush pipe (6) and the second backflush pipe (7).

5. The desulfurization and dust removal device with a recoil structure according to claim 4, characterized in that: Two groups of the connecting pieces (505) are respectively fixed on the sides of the first plug (501) and the second plug (502) away from the filter mesh (8). The first plug (501) and the second plug (502) are respectively pin-connected to the first connecting rod (506) and the second connecting rod (507) through the connecting piece (505).

6. The desulfurization and dust removal device with a recoil structure according to claim 5, characterized in that: The first connecting rod (506) and the second connecting rod (507) are respectively connected to both ends of the third connecting rod (508) through pin shafts. Guide telescopic rods (504) are provided between both the first plug (501) and the second plug (502) and the filter mesh (8).

7. A desulfurization and dust removal device with a recoil structure according to claim 1, characterized in that: The spray assembly (2) includes a spray support (202) fixed inside the desulfurization tower (1), and a number of spray heads (203) are arranged below the spray support (202) at equal intervals and evenly distributed. A liquid inlet pipe (201) communicating with the spray heads (203) is arranged on one side of the spray support (202).

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