Boiler tail gas purification device

Abstract

The utility model relates to the technical field of tail gas purification, in particular to a boiler tail gas purification device which comprises a bottom box and a spray tower, the spray tower is installed on the upper side of the bottom box, a cover body is installed on the top of the spray tower, an exhaust pipe is installed on the top of the cover body, the spray tower is communicated with the bottom box, and a filtering mechanism is installed in the bottom box in a penetrating mode. A water supply pipe penetrates through the middle of the side wall of the spray tower, and a spray mechanism is mounted at the upper end of the water supply pipe and located in the spray tower. Compared with the prior art, the boiler tail gas dust reduction device has the advantages that the speed of boiler tail gas is reduced through the bottom box, large particles in the tail gas are filtered through the first filter plate and the second filter plate in the filter mechanism, the dust amount in the spray tower is reduced, it is ensured that dust fall is conducted on the tail gas in the spray tower through the spray mechanism, and the dust removal efficiency is improved. The dust falling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas purification, in particular to a boiler tail gas purification 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. The original meaning of pot refers to a water container heated on fire, and furnace refers to a place where fuel is burned. The boiler consists of two parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's lives, or it can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator.

[0003] When the existing boiler exhaust gas purification device is in use, the exhaust gas will be discharged into the purification device box at a high speed. Long-term operation will cause irreversible damage to the purification device and affect the purification progress of the exhaust gas. A large amount of smoke and dust in the exhaust gas is directly sprayed through the spray tower for dust reduction, and the dust reduction effect is not good.

[0004] Based on the existing technical deficiencies, the utility model designs a boiler tail gas purification device. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] The technical problem to be solved by the utility model is that the tail gas is discharged into the purification device box at a relatively high speed, and long-term operation will cause irreversible damage to the purification device. The tail gas is directly sprayed through the spray tower for dust reduction, and the dust reduction effect is not good.

[0007] 2. Technical Solution

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a boiler tail gas purification device, comprising a bottom box and a spray tower, the spray tower is installed on the upper side of the bottom box, a cover body is installed on the top of the spray tower, an exhaust pipe is installed on the top of the cover body, the spray tower is connected with the bottom box, a filtering mechanism is installed through the inside of the bottom box, a water supply pipe is installed through the middle of the side wall of the spray tower, and a spray mechanism is installed at the upper end of the water supply pipe and located inside the spray tower;

[0009] The filtering mechanism comprises a sealing plate, a box body, a box cover, a partition plate and two groups of plug plates, one side wall of the box body is connected to the sealing plate, the partition plate is installed between the middle walls of both sides of the box body, the two groups of plug plates are installed on the lower side of the box cover and are respectively in contact with both sides of the partition plate, and the two groups of plug plates are respectively provided with a filter plate 1 and a filter plate 2;

[0010] The spray mechanism includes a central tube, a connecting tube and multiple groups of annular nozzles. The lower end of the connecting tube is connected to the water supply pipe and the upper end is connected to the central tube. Multiple groups of water guide pipes are connected between the central tube and the multiple groups of annular nozzles. Multiple groups of spray heads are arranged on the inner wall of the annular nozzles.

[0011] As an improvement, an air guide tube is provided on one side of the box body away from the sealing plate, a connecting sleeve is provided on the side wall of the bottom box, and one end of the air guide tube is inserted into the interior of the connecting sleeve.

[0012] As an improvement, the first filter plate is close to the air duct and located at the lower side of the partition, and the second filter plate is close to the sealing plate and located at the upper and lower sides of the partition.

[0013] As an improvement, an exhaust port is provided on the upper wall of the box body, an air supply pipe is installed on the upper side wall of the bottom box and located above the exhaust port, the upper end of the air supply pipe passes into the interior of the spray tower, and a limit frame is provided on the upper side of the bottom box to cooperate with the installation of the spray tower.

[0014] As an improvement, a mounting frame is installed on the inner side of the upper wall of the air supply pipe, and a waterproof cover body is installed on the top of the mounting frame in a matching threaded manner, and the lower side of the waterproof cover body does not contact the air supply pipe.

[0015] As an improvement, the lower side wall of the spray tower is in sealing contact with the outer wall of the air supply pipe, and a drainage pipe is installed at the lower part of one side wall of the spray tower.

[0016] As an improvement, the sealing plate is connected to the outer wall of the bottom box by means of bolts.

[0017] 3. Beneficial Effects

[0018] Compared with the prior art, the utility model has the advantages of reducing the speed of the boiler exhaust gas through the bottom box, filtering large particles in the exhaust gas through filter plates one and two in the filtering mechanism, reducing the amount of dust inside the spray tower, ensuring that the spray mechanism reduces the dust on the exhaust gas inside the spray tower, and improving the dust reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded diagram of a boiler tail gas purification device of the utility model.

[0020] Figure 2 The utility model is a schematic diagram of the overall structure of a boiler tail gas purification device.

[0021] Figure 3 The utility model is a schematic diagram of the filter mechanism structure of a boiler tail gas purification device.

[0022] Figure 4 The utility model is a schematic diagram of the internal structure of a spray tower of a boiler tail gas purification device.

[0023] Figure 5 The utility model is a schematic diagram of the spray mechanism structure of a boiler tail gas purification device.

[0024] Figure 6 The utility model is a schematic diagram of the bottom box structure of a boiler tail gas purification device.

[0025] As shown in the figure: 1. bottom box; 2. spray tower; 3. cover body; 4. exhaust pipe; 5. filter mechanism; 501. sealing plate; 502. box body; 503. box cover; 504. partition; 505. plug-in plate; 506. filter plate one; 507. filter plate two; 508. air guide pipe; 509. exhaust port; 6. limit frame; 7. air supply pipe; 8. waterproof cover body; 9. spray mechanism; 901. center pipe; 902. connecting pipe; 903. annular nozzle; 904. spray head; 905. water guide pipe; 10. connecting sleeve; 11. water supply pipe; 12. drain pipe. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] As attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, a boiler tail gas purification device comprises a bottom box 1 and a spray tower 2, a connecting sleeve 10 is provided on the side wall of the bottom box 1, the spray tower 2 is installed on the upper side of the bottom box 1, a cover body 3 is installed on the top of the spray tower 2, an exhaust pipe 4 is installed on the top of the cover body 3, the spray tower 2 is connected to the bottom box 1, and a filtering mechanism 5 is installed inside the bottom box 1;

[0029] The filtering mechanism 5 includes a sealing plate 501, a box body 502, a box cover 503, a partition 504, and two groups of plug plates 505. One side wall of the box body 502 is connected to the sealing plate 501. An air duct 508 is provided on the side of the box body 502 away from the sealing plate 501. One end of the air duct 508 is inserted into the connecting sleeve 10. The partition 504 is installed between the middle walls on both sides of the box body 502. The two groups of plug plates 505 are installed on the lower side of the box cover 503 and are respectively in contact with the two sides of the partition 504. The two groups of plug plates 505 are respectively provided with a filter plate 1 506 and a filter plate 2 507. The filter plate 1 506 is close to the air duct 508 and is located on the lower side of the partition 504. The filter plate 2 507 is close to the sealing plate 501 and is located on the upper and lower sides of the partition 504.

[0030] Through the above structure, the connecting sleeve 10 is connected to the boiler exhaust gas discharge pipe, the boiler exhaust gas enters the bottom box 1 through the connecting sleeve 10, and the boiler exhaust gas enters the box body 502 through the air guide pipe 508, and the boiler exhaust gas is filtered through the filter plate 1 506. The filtered exhaust gas passes through the bottom of the box body 502, and is filtered again through the lower part of the filter plate 2 507, and then the boiler exhaust gas is filtered through the upper part of the filter plate 2 507, so that the boiler exhaust gas flows to the upper side of the partition 504, so that the boiler exhaust gas is decelerated in the bottom box 1, and filtered, and the boiler exhaust gas is discharged to the spray tower 2, and the boiler exhaust gas is sprayed and dusted by the spray tower 2. The purified boiler exhaust gas is discharged through the exhaust pipe 4 on the top of the cover body 3. The specific structure is as follows:

[0031] Combined with Figure 3 and attached Figure 6 As shown, the sealing plate 501 is connected to the outer wall of the bottom box 1 by means of bolts, an exhaust port 509 is provided on the upper wall of the box body 502, an air supply pipe 7 is installed on the upper side wall of the bottom box 1 and located above the exhaust port 509, the upper end of the air supply pipe 7 passes through the interior of the spray tower 2, and a limit frame 6 is provided on the upper side of the bottom box 1 to cooperate with the installation of the spray tower 2.

[0032] Through the above structure, the sealing plate 501 is connected to the outer wall of the bottom box 1 with the help of bolts. The sealing plate 501 is in sealing contact with the outer wall of the bottom box 1 to prevent the boiler exhaust gas from leaking out of the bottom box 1. The filtered boiler exhaust gas is discharged through the exhaust port 509, and the boiler exhaust gas is discharged to the inside of the spray tower 2 through the air supply pipe 7. The bottom of the spray tower 2 is limited by the limit frame 6.

[0033] Combined with Figure 1 and attached Figure 6 As shown, a mounting bracket 13 is installed on the inner side of the upper wall of the air supply pipe 7, and a waterproof cover body 8 is installed on the top of the mounting bracket 13 in a matching threaded manner, and the lower side of the waterproof cover body 8 does not contact the air supply pipe 7.

[0034] Through the above structure, the boiler exhaust gas in the air supply pipe 7 is discharged from between the air supply pipe 7 and the waterproof cover 8, and the waterproof cover 8 prevents the spray water from flowing into the air supply pipe 7.

[0035] Embodiment 2

[0036] Based on Example 1, please refer to the attached Figure 4 and attached Figure 5 A water supply pipe 11 is installed through the middle of the side wall of the spray tower 2, and a spray mechanism 9 is installed on the upper end of the water supply pipe 11 and located inside the spray tower 2. The spray mechanism 9 includes a central tube 901, a connecting tube 902 and multiple groups of annular nozzles 903. The lower end of the connecting tube 902 is connected to the water supply pipe 11 and the upper end is connected to the central tube 901. Multiple groups of water guide pipes 905 are connected between the central tube 901 and the multiple groups of annular nozzles 903. Multiple groups of spray heads 904 are provided on the inner wall of the annular nozzles 903.

[0037] Through the above structure of Example 2, the water supply pipe 11 is connected to an external water supply device, and the water in the water supply pipe 11 is delivered to the central pipe 901 through the connecting pipe 902. The water in the central pipe 901 is discharged to the annular nozzle 903 through multiple groups of water guide pipes 905. The water is sprayed out through multiple groups of spray heads 904 on the inner wall of the annular nozzle 903. After the filtered boiler exhaust gas enters the spray tower 2, the boiler exhaust gas is purified by multiple layers of spray water.

[0038] Combined with Figure 4 and attached Figure 6 As shown, the lower side wall of the spray tower 2 is in sealing contact with the outer wall of the air supply pipe 7, and a drainage pipe 12 is installed at the lower part of one side wall of the spray tower 2.

[0039] Through the above structure, the spray water brings the dust in the boiler exhaust gas to the bottom of the spray tower 2. The lower side wall of the spray tower 2 is in sealed contact with the outer wall of the air supply pipe 7, so the waste water will not leak. The waste water is regularly discharged from the bottom of the spray tower 2 through the drain pipe 12.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0042] The above describes the utility model and its implementation methods, which are not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention of the utility model, they can creatively design a structure and embodiment similar to the technical solution, which should belong to the protection scope of the utility model.

Claims

1. A boiler tail gas purification device, comprising a bottom box (1) and a spray tower (2), wherein the spray tower (2) is installed on the upper side of the bottom box (1), a cover body (3) is installed on the top of the spray tower (2), and an exhaust pipe (4) is installed on the top of the cover body (3), characterized in that: The spray tower (2) is connected to the bottom box (1), a filtering mechanism (5) is installed through the inside of the bottom box (1), a water supply pipe (11) is installed through the middle of the side wall of the spray tower (2), and a spray mechanism (9) is installed at the upper end of the water supply pipe (11) and located inside the spray tower (2); The filtering mechanism (5) comprises a sealing plate (501), a box body (502), a box cover (503), a partition plate (504) and two groups of plug plates (505); a side wall of the box body (502) is connected to the sealing plate (501); the partition plate (504) is installed between the middle walls of both sides of the box body (502); the two groups of plug plates (505) are installed on the lower side of the box cover (503) and are respectively in contact with both sides of the partition plate (504); and the two groups of plug plates (505) are respectively provided with a filter plate 1 (506) and a filter plate 2 (507); The spray mechanism (9) comprises a central tube (901), a connecting tube (902) and a plurality of groups of annular nozzles (903); the lower end of the connecting tube (902) is connected to the water supply pipe (11) and the upper end is connected to the central tube (901); a plurality of groups of water guide pipes (905) are connected between the central tube (901) and the plurality of groups of annular nozzles (903); and a plurality of groups of spray heads (904) are provided on the inner wall of the annular nozzle (903).

2. A boiler tail gas purification device according to claim 1, characterized in that: An air guide tube (508) is provided on the side of the box body (502) away from the sealing plate (501), a connecting sleeve (10) is provided on the side wall of the bottom box (1), and one end of the air guide tube (508) is inserted into the interior of the connecting sleeve (10).

3. A boiler tail gas purification device according to claim 1, characterized in that: The filter plate 1 (506) is close to the air guide tube (508) and is located at the lower side of the partition (504), and the filter plate 2 (507) is close to the sealing plate (501) and is located at the upper and lower sides of the partition (504).

4. A boiler tail gas purification device according to claim 1, characterized in that: An exhaust port (509) is provided on the upper wall of the box body (502); an air supply pipe (7) is installed on the upper side wall of the bottom box (1) and located above the exhaust port (509); the upper end of the air supply pipe (7) passes through the interior of the spray tower (2); and a limit frame (6) is provided on the upper side of the bottom box (1) to cooperate with the installation of the spray tower (2).

5. A boiler tail gas purification device according to claim 4, characterized in that: A mounting frame (13) is installed on the inner side of the upper wall of the air supply pipe (7), and a waterproof cover body (8) is installed on the top of the mounting frame (13) in a threaded manner, and the lower side of the waterproof cover body (8) does not contact the air supply pipe (7).

6. A boiler tail gas purification device according to claim 1, characterized in that: The lower side wall of the spray tower (2) is in sealing contact with the outer wall of the air supply pipe (7), and a drainage pipe (12) is installed at the lower part of one side wall of the spray tower (2).

7. A boiler tail gas purification device according to claim 1, characterized in that: The sealing plate (501) is connected to the outer wall of the bottom box (1) by means of bolts.

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