Float glass kiln with main environmental protection system and standby environmental protection system

Abstract

The utility model discloses a float glass kiln with a main environmental protection system and a standby environmental protection system, which comprises the main environmental protection system and the standby environmental protection system, the main environmental protection system comprises a kiln (1), a main boiler (2), a main denitration unit (3), a main desulfurization unit (4), a main dust removal unit (5), a main fan (6) and a main chimney (7); airflow of the kiln (1) enters the main boiler (2) through the connecting pipe (15); the connecting pipe (15) is provided with a branch, the branch is connected through a connecting pipe (16), the connecting pipe (16) is divided into two directions, one direction is connected with a first inlet of the standby boiler (9) through a connecting pipe (33), and the other direction is connected with a second inlet of the standby tempering, dedusting and denitration unit (8) through a connecting pipe (34). The flue gas treatment device has the advantages that effective treatment of flue gas is not affected, and the phenomenon that the flue gas is exhausted without effective treatment due to failure or maintenance of a main system is avoided.

Description

Technical Field

[0001] This utility model relates to a float glass furnace with a main and backup environmental protection system. Background Technology

[0002] Because the original float glass production line's environmental protection system malfunctions, flue gas can only be directly discharged from the chimney, causing environmental pollution. To solve this problem, the company needs to build a backup environmental protection system. This utility model aims to solve this problem. Utility Model Content

[0003] The main objective of this invention is to provide a float glass furnace with a primary and backup environmental protection system.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A float glass furnace with a main and backup environmental protection system includes a main environmental protection system and a backup environmental protection system. The main environmental protection system includes a furnace (1), a main boiler (2), a main denitrification unit (3), a main desulfurization unit (4), a main dust removal unit (5), a main fan (6), and a main chimney (7). The airflow from the furnace (1) enters the main boiler (2) through a first connecting pipe (15). The main boiler (2) enters the main desulfurization unit (4) and the main dust removal unit (5) arranged in series through a second connecting pipe (20). The outlet of the main dust removal unit (5) is connected to the main chimney (7) through a third connecting pipe (22). The main boiler (2) is connected to the main chimney (7) through a fourth connecting pipe (18). The gas enters the main denitrification unit (3), and after denitrification, it returns to the main boiler (2) through the fifth connecting pipe (19). The first connecting pipe (15) has a branch, which is connected through the sixth connecting pipe (16). The sixth connecting pipe (16) is divided into two directions. One direction is connected to the first inlet of the standby boiler (9) through the seventh connecting pipe (33), and the other direction is connected to the second inlet of the standby conditioning, dust removal, and denitrification unit (8) through the eighth connecting pipe (34). The standby environmental protection system includes the standby conditioning, dust removal, and denitrification unit (8), the standby boiler (9), the standby induced draft fan (10), the standby desulfurization unit (13), and the standby chimney (14).

[0006] Furthermore, the outlet of the standby conditioning, dust removal, and denitrification unit (8) has two directions: it enters the first inlet of the standby boiler (9) through the ninth connecting pipe (26), and enters the second inlet of the standby boiler (9) through the tenth connecting pipe (25). The first outlet of the standby boiler (9) returns to the second inlet of the standby conditioning, dust removal, and denitrification unit (8) through the eleventh connecting pipe (27). The second outlet of the standby boiler (9) enters the standby induced draft fan (10) through the twelfth connecting pipe (28). The first outlet of the standby induced draft fan (10) is connected to the standby desulfurization unit (13) through the thirteenth connecting pipe (29). The standby desulfurization unit (13) enters the standby chimney (14) for emission through the fourteenth connecting pipe (30).

[0007] Furthermore, the second outlet of the standby induced draft fan (10) is connected to the six-wire de-pin unit (11) via the fifteenth connecting pipe (31).

[0008] Furthermore, the third outlet of the standby induced draft fan (10) is connected to the eight-wire de-pin unit (12) via the sixteenth connecting pipe (32).

[0009] Furthermore, the connecting pipe (22) is provided with two branches, one of which returns to the main desulfurization unit (4) through the seventeenth connecting pipe (23), and the other branch enters the first inlet of the backup conditioning, dust removal and denitrification unit (8) of the backup environmental protection system through the eighteenth connecting pipe (24).

[0010] Compared with the prior art, this technical solution has the following advantages:

[0011] This utility model has a primary environmental protection system and a backup environmental protection system. When the primary environmental protection system malfunctions, the waste gas can be transferred to the backup environmental protection system through either the connecting pipe (16) or the connecting pipe (24). The advantage of this utility model's primary and backup system design is that it does not affect the effective treatment of flue gas, and the flue gas will not be discharged without effective treatment due to a failure of the primary system or during maintenance. Moreover, the flue gas treated by the backup system achieves the same effect as the primary system, ensuring that the concentration of pollutants in the discharged flue gas meets local environmental protection requirements. Furthermore, it has two switching routes to enter the backup system, adapting to various situations. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a three-dimensional schematic diagram of a float glass furnace with primary and backup environmental protection systems, representing a preferred embodiment.

[0014] In the picture,

[0015] 1-Kiln 2-Main Boiler 3-Main Denitrification Unit 4-Main Desulfurization Unit 5-Main Dust Removal Unit 6-Main Fan 7-Main Chimney

[0016] 8- Backup conditioning, dust removal, and denitrification unit; 9- Backup boiler; 10- Backup induced draft fan; 11- Six-line denitrification unit; 12- Eight-line denitrification unit; 13- Backup desulfurization unit; 14- Backup chimney; 15 to 34 are all connecting pipes. Detailed Implementation

[0017] Please refer to Figure 1 A float glass furnace with primary and backup environmental protection systems is disclosed. The primary environmental protection system includes a furnace 1, a main boiler 2, a main denitrification unit 3, a main desulfurization unit 4, a main dust removal unit 5, a main fan 6, and a main chimney 7. The airflow from the furnace 1 enters the main boiler 2 through a first connecting pipe 15, where heat exchange is used to heat the boiler and lower the gas temperature, while also utilizing residual heat. The gas after heat exchange in the main boiler 2 then enters the main denitrification unit 3 through a fourth connecting pipe 18 for denitrification. The denitrified gas then returns to the main boiler 2 through a fifth connecting pipe 19. The main boiler 2 also has a second connecting pipe 20 leading to the main desulfurization unit 4 and the main dust removal unit 5, which are connected in series. The outlet of the main dust removal unit 5 is connected to the main chimney 7 through a third connecting pipe 22. The third connecting pipe 22 has two branches. One branch returns to the main desulfurization unit 4 through the seventeenth connecting pipe 23, and the other branch enters the first inlet of the backup conditioning, dust removal, and denitrification unit 8 of the backup environmental protection system through the eighteenth connecting pipe 24.

[0018] The backup environmental protection system includes a backup conditioning, dust removal, and denitrification unit 8, a backup boiler 9, a backup induced draft fan 10, a six-line denitrification unit 11, an eight-line denitrification unit 12, a backup desulfurization unit 13, and a backup chimney 14.

[0019] The standby conditioning, dust removal, and denitrification unit 8 has two outlets, one entering the first inlet of the standby boiler 9 through the ninth connecting pipe 26, and the other entering the second inlet of the standby boiler 9 through the tenth connecting pipe 25. The first outlet of the standby boiler 9 returns to the second inlet of the standby conditioning, dust removal, and denitrification unit 8 through the eleventh connecting pipe 27. The second outlet of the standby boiler 9 enters the standby induced draft fan 10 through the twelfth connecting pipe 28.

[0020] The first outlet of the standby induced draft fan 10 is connected to the standby desulfurization unit 13 through the connecting pipe 29, and the standby desulfurization unit 13 enters the standby chimney 14 through the fourteenth connecting pipe 30 for emission.

[0021] The second outlet of the backup induced draft fan 10 is connected to the six-line denitrification unit 11 via the fifteenth connecting pipe 31; the third outlet is connected to the eight-line denitrification unit 12 via the sixteenth connecting pipe 32. This backup system is shared by the six-line and eight-line systems. If the six-line system is switched to the backup system, during the backup system's heating phase, the damper on the six-line 31 is opened to allow the flue gas to flow back to the six-line denitrification unit 11, and then the flue gas flows according to the original main system 3. The damper on the eight-line 32 is not opened. Similarly, if the eight-line system is switched to the backup system, the damper on the eight-line 32 is opened to allow the flue gas to flow back to the eight-line denitrification unit 12, and then the flue gas flows according to the original main system 3. The damper on the six-line 31 is not opened.

[0022] The first connecting pipe 15 has a branch, which is connected through the sixth connecting pipe 16. The sixth connecting pipe 16 is further divided into two directions. One direction is connected to the first inlet of the standby boiler 9 through the seventh connecting pipe 33, and the other direction is connected to the second inlet of the standby conditioning, dust removal, and denitrification unit 8 through the eighth connecting pipe 34.

[0023] Valves are installed on all of the above connecting pipes.

[0024] The uses of this utility model are as follows:

[0025] Normal operating condition: Using the main system, the gas flow direction is: Kiln 1 → First connecting pipe 15 → Main boiler 2 → Fourth connecting pipe 18 → Main denitrification unit 3 → Fifth connecting pipe 19 → Main boiler 2 → Second connecting pipe 20 → Main desulfurization unit 4 → Main dust removal unit 5 → Connecting pipe 21 → Main fan 6 → Third connecting pipe 22 → Main chimney 7

[0026] When the main system is under maintenance or malfunctions, the backup system is used. After the backup system is heated to the required temperature, the gas flow direction is as follows: kiln 1 → first connecting pipe 15 → sixth connecting pipe 16 → eighth connecting pipe 34 → backup conditioning, dust removal and denitrification unit 8 → ninth connecting pipe 26 → backup boiler 9 → twelfth connecting pipe 28 → backup induced draft fan 10 → thirteenth connecting pipe 29 → backup desulfurization unit 13 → connecting pipe 30 → backup chimney 14.

[0027] Alternatively, it can enter the first inlet of the backup conditioning, dust removal, and denitrification unit 8 of the backup environmental protection system through the eighteenth connecting pipe 24, and then through the ninth connecting pipe 26 → backup boiler 9 → twelfth connecting pipe 28 → backup induced draft fan 10 → thirteenth connecting pipe 29 → backup desulfurization unit 13 → fourteenth connecting pipe 30 → backup chimney 14.

[0028] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A float glass furnace with primary and backup environmental protection systems, characterized in that: The system includes a primary environmental protection system and a backup environmental protection system. The primary environmental protection system includes a kiln (1), a main boiler (2), a main denitrification unit (3), a main desulfurization unit (4), a main dust removal unit (5), a main fan (6), and a main chimney (7). The airflow from the kiln (1) enters the main boiler (2) through a first connecting pipe (15). The main boiler (2) enters the main desulfurization unit (4) and the main dust removal unit (5) connected in series through a second connecting pipe (20). The outlet of the main dust removal unit (5) is connected to the main chimney (7) through a third connecting pipe (22). The main boiler (2) enters the main denitrification unit (3) through a fourth connecting pipe (18). After denitrification, the gas returns to the main boiler (2) through the fifth connecting pipe (19); the first connecting pipe (15) has a branch, which is connected through the sixth connecting pipe (16), and the sixth connecting pipe (16) is divided into two directions, one direction is connected to the first inlet of the standby boiler (9) through the seventh connecting pipe (33), and the other direction is connected to the second inlet of the standby conditioning, dust removal and denitrification unit (8) through the eighth connecting pipe (34); the standby environmental protection system includes the standby conditioning, dust removal and denitrification unit (8), the standby boiler (9), the standby induced draft fan (10), the standby desulfurization unit (13) and the standby chimney (14).

2. A float glass furnace with a primary and backup environmental protection system according to claim 1, characterized in that: The outlet of the standby conditioning, dust removal, and denitrification unit (8) has two directions: it enters the first inlet of the standby boiler (9) through the ninth connecting pipe (26) and the second inlet of the standby boiler (9) through the tenth connecting pipe (25). The first outlet of the standby boiler (9) returns to the second inlet of the standby conditioning, dust removal, and denitrification unit (8) through the eleventh connecting pipe (27). The second outlet of the standby boiler (9) enters the standby induced draft fan (10) through the twelfth connecting pipe (28). The first outlet of the standby induced draft fan (10) is connected to the standby desulfurization unit (13) through the thirteenth connecting pipe (29). The standby desulfurization unit (13) enters the standby chimney (14) through the fourteenth connecting pipe (30) for emission.

3. A float glass furnace with a primary and backup environmental protection system according to claim 2, characterized in that: The second outlet of the standby induced draft fan (10) is connected to the six-wire de-pin unit (11) via the fifteenth connecting pipe (31).

4. A float glass furnace with a primary and backup environmental protection system according to claim 2, characterized in that: The third outlet of the standby induced draft fan (10) is connected to the eight-wire de-pin unit (12) via the sixteenth connecting pipe (32).

5. A float glass furnace with a primary and backup environmental protection system according to claim 2, characterized in that: Two branches are provided on the connecting pipe (22). One branch returns to the main desulfurization unit (4) through the seventeenth connecting pipe (23), and the other branch enters the first inlet of the backup conditioning, dust removal and denitrification unit (8) of the backup environmental protection system through the eighteenth connecting pipe (24).

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