Desulfurization and denitrification device for boiler

Abstract

The utility model discloses a boiler desulfurization and denitrification device, and particularly relates to the field of boiler flue gas treatment, the boiler desulfurization and denitrification device comprises a gas delivery pipe, the right side of the gas delivery pipe is fixedly connected with a filter box, the upper part of the filter box is fixedly connected with a cleaning assembly, and the inside of the filter box is fixedly connected with a filter screen; a connecting pipe is fixedly connected to the right side of the filter box, a desulfurization box is fixedly connected to the right side of the connecting pipe, a driving assembly is fixedly connected to the upper portion of the desulfurization box, a denitration box is fixedly connected to the right side of the desulfurization box, and an exhaust pipe is fixedly connected to the right side of the denitration box. The cleaning assembly comprises an adjusting rod, a user can drive threaded rods at the front end and the rear end to rotate through a servo motor in the cleaning assembly, the threaded rods at the front end and the rear end drive moving plates on the left side and the right side to move through moving rings respectively, dredging plates on the left side and the right side clean a filter screen, and the filter screen is prevented from being blocked; and the gas conveying efficiency in the filter box is reduced.

Description

Technical Field

[0001] The utility model relates to the field of boiler flue gas treatment, and more specifically, to a boiler desulfurization and denitration device. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. During the use of the boiler, the boiler will produce waste gas containing sulfur and nitrate, so a boiler desulfurization and denitration device is needed;

[0003] After searching, the existing patent (publication number: CN208340477U) discloses a boiler desulfurization and denitrification device, including a boiler, a filtering device, a denitrification tower, a desulfurization tower, a water washing device, and a water mist removal tower. The exhaust gas of the boiler is connected to the filtering device through a pipeline. The filtering device is provided with four layers of filters. The filter includes a fixed frame, a filter screen, a bracket, and a nozzle. The fixed frame is circular. The filter screen is installed in the fixed frame by screws. The nozzles are installed at relative positions on the fixed frame. The bracket is located on both sides of the fixed frame. The nozzle is installed on the bracket. A plurality of sleeves are provided in the filter screen. The sleeves are installed on the rotating shaft. The rotating shaft is installed in the filter screen. Barbs are welded on the sleeves. The filtering device, denitrification tower, desulfurization tower, water washing device, and water mist removal tower are connected in sequence. The utility model has a reasonable design; the flue gas is desulfurized, denitrated, and dusted by the filtering device, denitrification tower, desulfurization tower, water washing device, and water mist removal tower, thereby improving the emission quality and protecting the environment.

[0004] In the existing boiler flue gas desulfurization and denitrification process, the flue gas contains some particulate impurities. Before the desulfurization and denitrification treatment, the particulate impurities in the flue gas need to be filtered to prevent the particulate impurities from affecting the neutralizing agents of the desulfurization and denitrification. However, after a long period of use, the holes on the filter are easily clogged, and it is difficult for users to clean the filter, resulting in reduced filtering efficiency of the filter.

[0005] Therefore, a boiler desulfurization and denitrification device is proposed to address the above-mentioned problems. Meanwhile, the above-cited patent documents do not propose any relevant solutions to solve the problem that it is difficult for users to clean the filter. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a boiler desulfurization and denitrification device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler desulfurization and denitrification device, comprising a gas delivery pipe, a filter box is fixedly connected to the right side of the gas delivery pipe, a cleaning assembly is fixedly connected to the top of the filter box, a filter screen is fixedly connected to the inside of the filter box, a connecting pipe is fixedly connected to the right side of the filter box, a desulfurization box is fixedly connected to the right side of the connecting pipe, a driving assembly is fixedly connected to the top of the desulfurization box, a denitrification box is fixedly connected to the right side of the desulfurization box, and an exhaust pipe is fixedly connected to the right side of the denitrification box;

[0008] The cleaning assembly includes an adjusting rod, a servo motor is fixedly connected to the right side of the adjusting rod, the output end of the servo motor is connected to a transmission rod through an axis linkage, the outer wall of the transmission rod is connected to a transmission belt, one side of the transmission rod is fixedly connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to a moving ring, a moving plate is fixedly connected to the bottom of the moving ring, and a dredging plate is fixedly connected to one side of the moving plate.

[0009] Preferably, the filter box and the desulfurization box are fixedly connected via a connecting pipe, and a gas pump is fixedly connected to the middle of the outer wall of the connecting pipe.

[0010] Preferably, the threaded rods are symmetrically arranged at the front and rear ends above the filter box, and the threads of the threaded rods at the front and rear ends are arranged in reverse directions.

[0011] Preferably, the dredging plate is axially symmetrically arranged on the left and right sides of the filter screen, and the dredging plate is provided with a plug rod matching the holes on the filter screen.

[0012] Preferably, the driving assembly includes a driving rod, the right side of the driving rod is fixedly connected to a driving motor, the output end of the driving motor is connected to a transmission shaft through an axial linkage, one side of the transmission shaft is fixedly connected to a reciprocating screw, the outer wall of the reciprocating screw is threadedly connected to a moving block, the upper part of the moving block is fixedly connected to a medicine box, the lower parts of the front and rear ends of the medicine box are fixedly connected to a drug delivery tube, and the lower part of the drug delivery tube is fixedly connected to a spray port.

[0013] Preferably, the desulfurization box and the denitration box are fixedly connected via a connecting pipe, and the internal structures of the desulfurization box and the denitration box are the same.

[0014] Preferably, the medicine box and the moving block are fixedly connected via a connecting rod, and a limiting groove matching the connecting rod is provided above the driving rod.

[0015] Preferably, the medicine box and the medicine spray port are fixedly connected via a medicine delivery tube, and a medicine delivery pump is fixedly connected to the middle of the medicine delivery tube.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the boiler desulfurization and denitrification device includes an adjusting rod through a cleaning component. The user can drive the front and rear threaded rods to rotate through the servo motor inside the cleaning component, so that the front and rear threaded rods respectively drive the left and right moving plates to move through the moving rings, so that the left and right dredging plates can clean the filter to avoid clogging of the filter, which will reduce the gas transportation efficiency inside the filter box.

[0018] 2. Compared with the prior art, the boiler desulfurization and denitrification device includes a driving rod through a driving assembly. The user can use the driving assembly to make the agent box and the spray port move left and right periodically inside the desulfurization box and the denitrification box, so that the spray port can evenly spray the desulfurization agent and the denitrification agent inside the desulfurization box and the denitrification box, so that the desulfurization box and the denitrification box can more fully desulfurize and denitrify the boiler flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the filter box of the utility model.

[0021] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the desulfurization box of the utility model.

[0022] Figure 4 For this utility model Figure 2 A in the figure is an enlarged structural diagram.

[0023] Figure 5 For this utility model Figure 3 The enlarged structural diagram at B in FIG.

[0024] The accompanying drawings are marked as follows: 1. gas pipe; 2. cleaning component; 201. adjusting rod; 202. servo motor; 203. threaded rod; 204. transmission rod; 205. dredging plate; 206. moving ring; 207. moving plate; 208. transmission belt; 3. driving component; 301. medicine box; 302. medicine pipe; 303. driving motor; 304. medicine pump; 305. driving rod; 306. transmission shaft; 307. reciprocating screw rod; 308. medicine spray port; 309. moving block; 4. filter box; 5. gas pump; 6. desulfurization box; 7. connecting pipe; 8. denitrification box; 9. exhaust pipe; 10. filter screen. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1

[0027] As attached Figure 1 and Figure 2 A boiler desulfurization and denitration device shown includes a gas delivery pipe 1, a filter box 4 is fixedly connected to the right side of the gas delivery pipe 1, a cleaning component 2 is fixedly connected to the top of the filter box 4, a filter screen 10 is fixedly connected inside the filter box 4, a connecting pipe 7 is fixedly connected to the right side of the filter box 4, a desulfurization box 6 is fixedly connected to the right side of the connecting pipe 7, a driving component 3 is fixedly connected to the top of the desulfurization box 6, a denitration box 8 is fixedly connected to the right side of the desulfurization box 6, and an exhaust pipe 9 is fixedly connected to the right side of the denitration box 8;

[0028] The cleaning component 2 includes an adjusting rod 201, a servo motor 202 is fixedly connected to the right side of the adjusting rod 201, the output end of the servo motor 202 is connected to a transmission rod 204 through an axis linkage, the outer wall of the transmission rod 204 is connected to a transmission belt 208, one side of the transmission rod 204 is fixedly connected to a threaded rod 203, the outer wall of the threaded rod 203 is threadedly connected to a moving ring 206, a moving plate 207 is fixedly connected below the moving ring 206, and a clearing plate 205 is fixedly connected to one side of the moving plate 207.

[0029] Among them: the user can drive the front and rear threaded rods 203 to rotate through the servo motor 202 inside the cleaning component 2, so that the front and rear threaded rods 203 respectively drive the left and right moving plates 207 to move through the moving ring 206, so that the left and right clearing plates 205 can clean the filter 10 to avoid clogging of the filter 10, resulting in reduced gas transportation efficiency inside the filter box 4. At the same time, the user can drive the component 3 to make the agent box 301 and the spray port 308 move left and right periodically inside the desulfurization box 6 and the denitrification box 8, so that the spray port 308 can evenly spray the desulfurization agent and the denitrification agent inside the desulfurization box 6 and the denitrification box 8, so that the desulfurization box 6 and the denitrification box 8 can more fully desulfurize and denitrify the boiler flue gas.

[0030] Embodiment 2

[0031] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 5 As shown, see the following description for details:

[0032] As a preferred embodiment, the filter box 4 and the desulfurization box 6 are fixedly connected by a connecting pipe 7, and an air pump 5 is fixedly connected to the middle of the outer wall of the connecting pipe 7; further, through the connection relationship between the filter box 4 and the desulfurization box 6, the boiler flue gas that has been filtered out of particulate matter by the filter box 4 can enter the desulfurization box 6 for desulfurization, and the air pump 5 fixedly connected to the middle of the outer wall of the connecting pipe 7 makes it convenient for the user to control the flow of flue gas inside the device through the air pump 5.

[0033] As a preferred embodiment, the threaded rod 203 is symmetrically arranged at the front and rear ends above the filter box 4, and the threads of the threaded rod 203 at the front and rear ends are reversely arranged; further, through the reversely arranged threads, the threaded rod 203 can respectively drive the clearing plates 205 on the left and right sides to move in reverse, so that the clearing plates 205 can clear the filter net 10.

[0034] As a preferred embodiment, the clearing plate 205 is axially symmetrically arranged on the left and right sides of the filter screen 10, and the clearing plate 205 is provided with an insertion rod matching the holes on the filter screen 10; further, through the positional relationship between the clearing plate 205 and the filter screen 10, it is convenient for the user to fully clear the filter screen 10 through the clearing plate 205, and the clearing plate 205 will not affect the gas circulation inside the filter box 4. Through the insertion rod provided on the clearing plate 205, the clearing plate 205 can remove the particles clogging the holes of the filter screen 10 through the insertion rod.

[0035] As a preferred embodiment, the driving component 3 includes a driving rod 305, the right side of the driving rod 305 is fixedly connected to a driving motor 303, the output end of the driving motor 303 is connected to a transmission shaft 306 through an axial linkage, one side of the transmission shaft 306 is fixedly connected to a reciprocating screw 307, the outer wall of the reciprocating screw 307 is threadedly connected to a moving block 309, the upper part of the moving block 309 is fixedly connected to a medicine box 301, the lower part of the front and rear ends of the medicine box 301 is fixedly connected to a drug delivery tube 302, and the lower part of the drug delivery tube 302 is fixedly connected to a drug spray port 308; further, the user can use the driving component 3 to make the medicine box 301 and the drug spray port 308 periodically move left and right inside the desulfurization box 6 and the denitrification box 8, so that the drug spray port 308 can evenly spray the desulfurization agent and the denitrification agent inside the desulfurization box 6 and the denitrification box 8, so that the desulfurization box 6 and the denitrification box 8 can more fully desulfurize and denitrify the boiler flue gas.

[0036] As a preferred embodiment, the desulfurization box 6 and the denitrification box 8 are fixedly connected by a connecting pipe 7, and the internal structures of the desulfurization box 6 and the denitrification box 8 are the same; further, through the connection relationship between the desulfurization box 6 and the denitrification box 8, it is convenient for the user to let the desulfurized boiler flue gas inside the desulfurization box 6 enter the denitrification box 8. The desulfurization box 6 and the denitrification box 8 are arranged with the same structure, so that the desulfurization box 6 and the denitrification box 8 can be under the action of the driving component 3, so that the boiler flue gas can be fully denitrated and desulfurized.

[0037] As a preferred embodiment, the medicine box 301 and the moving block 309 are fixedly connected by a connecting rod, and a limiting groove matching the connecting rod is opened above the driving rod 305; further, through the connection relationship between the medicine box 301 and the moving block 309, it is convenient for the user to drive the medicine box 301 to move through the moving block 309, and the driving rod 305 can limit the moving block 309 through the limiting groove opened above the driving rod 305.

[0038] As a preferred embodiment, the medicine box 301 and the medicine spray port 308 are fixedly connected via a medicine delivery tube 302, and a medicine delivery pump 304 is fixedly connected to the middle part of the medicine delivery tube 302; further, through the connection relationship between the medicine box 301 and the medicine spray port 308, the medicine box 301 can transport drugs to the inside of the medicine spray port 308 through the medicine delivery tube 302.

[0039] The working process of the utility model is as follows:

[0040] When the user needs to desulfurize and denitrify the boiler flue gas, the user can turn on the left gas pump 5 to allow the boiler flue gas filtered by the filter box 4 to enter the desulfurization box 6. Then the user can turn on the drive motor 303. Under the action of the drive motor 303, the transmission shaft 306 drives the reciprocating screw 307 to rotate, so that the moving block 309 drives the reagent box 301 to move left and right periodically, and the reagent box 301 drives the spray port 308 to move left and right periodically through the reagent pipe 302, so that the spray port 308 evenly sprays the desulfurization agent inside the reagent box 301 into the desulfurization box 6, so that the boiler flue gas inside the desulfurization box 6 is fully desulfurized. After desulfurization, the user can turn on the right gas pump 5 to allow the boiler flue gas to be denitrified by the denitrification box 8.

[0041] After the filter 10 inside the filter box 4 has been filtered for a long time, the user can turn on the servo motor 202. Under the action of the servo motor 202, the transmission rod 204 drives the front and rear end threaded rods 203 to rotate simultaneously through the transmission belt 208, so that the threaded rod 203 drives the moving plate 207 and the clearing plate 205 through the moving ring 206 to clean the blocked holes on the filter 10, so as to avoid the filter 10 being blocked, which leads to a decrease in the smoke circulation efficiency inside the filter box 4.

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A boiler desulfurization and denitrification device, comprising a gas transmission pipe (1), characterized in that: The right side of the gas transmission pipe (1) is fixedly connected to a filter box (4), the top of the filter box (4) is fixedly connected to a cleaning assembly (2), the interior of the filter box (4) is fixedly connected to a filter screen (10), the right side of the filter box (4) is fixedly connected to a connecting pipe (7), the right side of the connecting pipe (7) is fixedly connected to a desulfurization box (6), the top of the desulfurization box (6) is fixedly connected to a driving assembly (3), the right side of the desulfurization box (6) is fixedly connected to a denitration box (8), and the right side of the denitration box (8) is fixedly connected to an exhaust pipe (9); The cleaning assembly (2) comprises an adjusting rod (201), the right side of the adjusting rod (201) is fixedly connected to a servo motor (202), the output end of the servo motor (202) is connected to a transmission rod (204) via an axis linkage, the outer wall of the transmission rod (204) is connected to a transmission belt (208), one side of the transmission rod (204) is fixedly connected to a threaded rod (203), the outer wall of the threaded rod (203) is threadedly connected to a moving ring (206), a moving plate (207) is fixedly connected below the moving ring (206), and one side of the moving plate (207) is fixedly connected to a dredging plate (205).

2. A boiler desulfurization and denitrification device according to claim 1, characterized in that: The filter box (4) and the desulfurization box (6) are fixedly connected via a connecting pipe (7), and a gas delivery pump (5) is fixedly connected to the middle of the outer wall of the connecting pipe (7).

3. A boiler desulfurization and denitrification device according to claim 1, characterized in that: The threaded rods (203) are symmetrically arranged at the front and rear ends above the filter box (4), and the threads of the threaded rods (203) at the front and rear ends are arranged in opposite directions.

4. A boiler desulfurization and denitrification device according to claim 1, characterized in that: The dredging plate (205) is axially symmetrically arranged on the left and right sides of the filter screen (10), and a plug rod matching the holes on the filter screen (10) is arranged on the dredging plate (205).

5. A boiler desulfurization and denitrification device according to claim 1, characterized in that: The driving assembly (3) comprises a driving rod (305), the right side of which is fixedly connected to a driving motor (303), the output end of which is connected to a transmission shaft (306) via an axis linkage, one side of which is fixedly connected to a reciprocating screw rod (307), the outer wall of which is threadedly connected to a moving block (309), the upper part of which is fixedly connected to a medicine box (301), the lower parts of which are fixedly connected to a drug delivery tube (302) at both ends of the medicine box (301), and the lower part of which is fixedly connected to a drug spraying port (308).

6. A boiler desulfurization and denitrification device according to claim 1, characterized in that: The desulfurization box (6) and the denitration box (8) are fixedly connected via a connecting pipe (7), and the desulfurization box (6) and the denitration box (8) have the same internal structure.

7. A boiler desulfurization and denitrification device according to claim 5, characterized in that: The medicine box (301) and the moving block (309) are fixedly connected via a connecting rod, and a limiting groove matching the connecting rod is provided above the driving rod (305).

8. A boiler desulfurization and denitrification device according to claim 5, characterized in that: The medicine box (301) and the medicine spray port (308) are fixedly connected via a medicine delivery tube (302), and a medicine delivery pump (304) is fixedly connected to the middle of the medicine delivery tube (302).

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