Drying tower inlet structure with acid discharge pipe

Abstract

The utility model relates to the technical field of drying towers, and discloses a drying tower inlet structure with an acid discharge pipe, which comprises a tower body and a flue gas pipeline, and an inlet pipe is fixed at the top end of the left side of the tower body. According to the drying tower inlet structure with the acid discharge pipe, the fence is fixed to the position, close to the first mounting flange plate, in the flue gas pipeline and can be used for preventing dilute acid from entering the tower body, meanwhile, the discharge outlet is fixed to the right side of the bottom end of the flue gas pipeline, and a large amount of dilute acid solution generated by condensation can directly flow out of the discharge outlet; an acid return pipe can be mounted at the bottom end of the first valve at the bottom of the recovery tank and is used for returning the collected dilute acid to an acid making system, so that corrosion of a pipeline at the bottom of an inlet of the drying tower and a tower body can be reduced, and the service life of the drying tower is prolonged. The problem that a large amount of dilute acid generated at an inlet section of a drying tower cannot be conveniently discharged in an auxiliary mode is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying towers, in particular to a drying tower inlet structure with an acid discharge pipe. Background Art

[0002] A drying tower is a device used to remove moisture from materials and is widely used in various fields, including chemical, pharmaceutical, and food processing. During the operation of the drying tower, there are two issues: first, due to external power supply issues and frequent emergency shutdowns, the saturated water flue gas from the purification process stops flowing as the system stops production, forming condensed water. This condensed water flows into the drying tower along the flue gas duct from the purification process to the drying tower, forming a large amount of dilute acid in the flue gas duct and the drying tower inlet, corroding the pipe at the bottom of the drying tower inlet and the tower body, leading to leakage and posing a safety hazard. Second, during normal production, during the drying tower's drying acid circulation process, a small amount of concentrated sulfuric acid splashes onto the inlet pipe section, forming dilute acid that converges and flows into the drying tower, causing localized corrosion damage at the inlet bottom, a drawback. Utility Model Content

[0003] In view of the above problems, the purpose of the present invention is to provide a drying tower inlet structure with an acid discharge pipe to solve the problem in the above background technology that it is inconvenient to assist in discharging a large amount of dilute acid produced in the inlet section of the drying tower.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a drying tower inlet structure with an acid discharge pipe, comprising a tower body and a flue gas duct, an inlet pipe is fixed to the top of the left side of the tower body, and a flue gas duct is arranged on the left side of the inlet pipe, a fence is fixed to the right side of the bottom end of the flue gas duct, a discharge port is fixed to the right side of the bottom end of the flue gas duct, and a discharge pipe is fixed to the bottom end of the discharge port, a second valve is installed and fixed to the bottom end of the discharge pipe, a recovery tank is provided at the bottom end of the flue gas duct, a second connecting pipe is fixed to the top of the recovery tank, a first connecting pipe is fixed to the bottom end of the recovery tank, and a first valve is installed and fixed to the bottom end of the first connecting pipe, and an acid return pipe is installed and fixed to the bottom end of the first valve.

[0005] Furthermore, the right side of the recovery tank is fixedly connected to the left side of the tower body, and the enclosure is a fiberglass reinforced plastic component.

[0006] Furthermore, the top end of the second connecting pipe is installed and fixed between the bottom end of the second valve, the discharge port is connected to the interior of the flue gas duct, the discharge pipe is connected to the interior of the discharge port, the discharge pipe is connected to the interior of the second connecting pipe through the second valve, and the first connecting pipe is connected to the interior of the acid return pipe through the first valve.

[0007] Preferably, an outer cover is welded and fixed on the left side of the tower body, and a side cover is provided on the left side of the outer cover, the bottom end of the first connecting pipe passes through the interior of the bottom end of the outer cover, the top and bottom of the left side of the rear end of the outer cover are respectively fixed with fixing frames, the top and bottom of the rear end of the side cover are respectively fixed with connecting feet, the top and bottom of the left front end of the side cover are respectively provided with locking rods, the top and bottom of the left front end of the outer cover are respectively provided with screw holes for fitting the locking rods, and the inside of the side cover is provided with a slot.

[0008] Furthermore, an external thread is provided on the outside of the locking rod, the right side of the locking rod passes through the inside of the side cover and is rotatably connected to the screw hole, and the connecting foot is hingedly connected to the inside of the fixing frame.

[0009] Furthermore, the slot passes through the interior of the side cover and is connected to the interior of the outer cover, and a handle is fixed to the front end of the left side of the side cover.

[0010] Preferably, a slot is provided inside the left side of the inlet pipe, a connecting ring is provided inside the slot, and a filter is fixed inside the connecting ring.

[0011] Preferably, a first mounting flange is fixed to the right side of the outside of the flue gas duct, and a second mounting flange is fixed to the left side of the outside of the inlet pipe. The first mounting flange and the second mounting flange are fixed by bolts, and the flue gas duct is connected to the inside of the inlet pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the drying tower inlet structure with the acid discharge pipe not only facilitates the auxiliary discharge of a large amount of dilute acid generated in the drying tower inlet section, facilitates the protection of the exterior of the drying tower inlet structure, but also facilitates the auxiliary filtration of the flue gas transported into the drying tower;

[0013] By providing a tower body, an acid return pipe, a first valve, a first connecting pipe, a recovery tank, a second connecting pipe, a second valve, a discharge pipe, a discharge port, a flue gas duct and a baffle, a baffle is fixed on the inside of the flue gas duct near the first mounting flange to block the dilute acid and prevent the dilute acid from entering the tower body from the inlet pipe. At the same time, a discharge port is fixed on the right side of the bottom end of the flue gas duct. A large amount of dilute acid solution produced by condensation can flow out directly from the discharge port and be introduced into the interior of the recovery tank through the discharge pipe and the second connecting pipe for collection, and the concentrated dilute acid is discharged outside the tower. In addition, an acid return pipe can be installed at the bottom end of the first valve at the bottom of the recovery tank to return the collected dilute acid to the acid production system to adjust the acid concentration, so as to facilitate the auxiliary discharge of a large amount of dilute acid produced in the inlet section of the drying tower, and reduce the corrosion of the pipeline at the bottom of the inlet of the drying tower and the tower body.

[0014] By providing a tower body, side cover, locking rod, outer cover, connecting foot, fixing frame and slot, during the installation and use of the inlet structure, the outer cover is fixed on the outside of the inlet structure, and the outer cover and side cover can provide auxiliary cover and dustproof and waterproof protection for the inlet structure components of the drying tower;

[0015] By providing an inlet pipe, a connecting ring, a filter screen and a slot, when the inlet structure of the drying tower is installed and used, the connecting ring provided can be inserted into the inside of the slot on the left side of the inlet pipe. Then, the filter screen provided inside the connecting ring can be used to assist in filtering and removing some particulate impurities in the flue gas when the flue gas is transported into the interior of the tower body, thereby improving the purity of the flue gas and reducing the dirt inside the drying tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the enlarged side view of the enclosure of the present invention;

[0018] Figure 3 This is a side structural diagram of the side cover of the present utility model;

[0019] Figure 4 This is a schematic diagram of an enlarged partial cross-section of the connecting ring of the present invention.

[0020] In the figure: 1. Tower body; 2. Acid return pipe; 3. First valve; 4. First connecting pipe; 5. Side cover; 6. Recovery tank; 7. Second connecting pipe; 8. Second valve; 9. Discharge pipe; 10. Discharge port; 11. Flue gas duct; 12. Locking rod; 13. Outer cover; 14. First mounting flange; 15. Second mounting flange; 16. Inlet pipe; 17. Enclosure; 18. Fixing frame; 19. Connecting foot; 20. Slot; 21. Handle; 22. Slot; 23. Connecting ring; 24. Filter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0022] See also Figure 1-4, a drying tower inlet structure with an acid discharge pipe, comprising a tower body 1 and a flue gas duct 11, an inlet pipe 16 is fixed to the top of the left side of the tower body 1, and the flue gas duct 11 is provided on the left side of the inlet pipe 16, a fence 17 is fixed to the right side of the bottom end of the flue gas duct 11, a discharge port 10 is fixed to the right side of the bottom end of the flue gas duct 11, and a discharge pipe 9 is fixed to the bottom end of the discharge port 10, a second valve 8 is installed and fixed to the bottom end of the discharge pipe 9, a recovery tank 6 is provided at the bottom end of the flue gas duct 11, a second connecting pipe 7 is fixed to the top of the recovery tank 6, a first connecting pipe 4 is fixed to the bottom end of the recovery tank 6, and a first valve 3 is installed and fixed to the bottom end of the first connecting pipe 4, and an acid return pipe 2 is installed and fixed to the bottom end of the first valve 3;

[0023] The right side of the recovery tank 6 is fixedly connected to the left side of the tower body 1. The enclosure 17 is a fiberglass reinforced plastic component. The top of the second connecting pipe 7 is fixedly installed between the bottom end of the second valve 8. The discharge port 10 is connected to the interior of the flue gas duct 11. The discharge pipe 9 is connected to the interior of the discharge port 10. The discharge pipe 9 is connected to the interior of the second connecting pipe 7 through the second valve 8. The first connecting pipe 4 is connected to the interior of the acid return pipe 2 through the first valve 3.

[0024] Specifically, if Figure 1 and Figure 2 As shown, a semi-arc-shaped fiberglass enclosure 17 is fixed inside the flue gas duct 11 near the first mounting flange 14, which can be used to block dilute acid and prevent the dilute acid from entering the tower body 1 from the inlet pipe 16. At the same time, a discharge port 10 is fixed on the right side of the bottom end of the flue gas duct 11. A large amount of dilute acid solution produced by condensation can flow out directly from the discharge port 10 and be introduced into the interior of the recovery tank 6 through the discharge pipe 9 and the second connecting pipe 7 for collection, and the concentrated dilute acid is discharged outside the tower. In addition, an acid return pipe 2 can be installed at the bottom end of the first valve 3 at the bottom of the recovery tank 6 to return the collected dilute acid to the acid production system, adjust the acid concentration, and assist in the discharge of a large amount of dilute acid produced at the inlet section of the drying tower, which can reduce the corrosion of the bottom pipeline of the drying tower inlet and the tower body 1. Example 2

[0025] An outer cover 13 is welded and fixed to the left side of the tower body 1, and a side cover 5 is provided on the left side of the outer cover 13. The bottom end of the first connecting pipe 4 passes through the interior of the bottom end of the outer cover 13. A fixing bracket 18 is fixed to the top and bottom of the left side of the rear end of the outer cover 13. A connecting foot 19 is fixed to the top and bottom of the rear end of the side cover 5. A locking rod 12 is provided at the top and bottom of the left front end of the side cover 5. Screw holes for the locking rod 12 to be installed are provided at the top and bottom of the left front end of the outer cover 13. A slot 20 is provided inside the side cover 5.

[0026] The lock rod 12 is externally threaded. The right side of the lock rod 12 passes through the interior of the side cover 5 and is rotatably connected to the screw hole. The connecting foot 19 is hingedly connected to the interior of the fixing bracket 18. The slot 20 passes through the interior of the side cover 5 and communicates with the interior of the outer cover 13. A handle 21 is fixed to the front end of the left side of the side cover 5.

[0027] Specifically, if Figure 1 and Figure 3 As shown, an outer cover 13 is fixed to the outside of the inlet structure. The outer cover 13 and the side cover 5 can provide auxiliary dust and water protection for the inlet structural components of the drying tower. Example 3

[0028] A slot 22 is provided inside the left side of the inlet pipe 16, and a connecting ring 23 is provided inside the slot 22, and a filter screen 24 is fixed inside the connecting ring 23;

[0029] Specifically, if Figure 1 and Figure 4 As shown, the connecting ring 23 provided can be inserted into the inside of the card slot 22 on the left side of the inlet pipe 16. Then, the filter screen 24 provided inside the connecting ring 23 can be used to assist in filtering and removing some particulate impurities in the flue gas when the flue gas is transported into the interior of the tower body 1, thereby improving the purity of the flue gas and reducing the dirt inside the drying tower. Of course, an acid-resistant sealing sheet can be pasted on the card slot 22 and / or the contact surface of the connecting ring 23 to ensure airtightness, which is common knowledge in the field.

[0030] A first mounting flange 14 is fixed to the right side of the outside of the flue gas duct 11, and a second mounting flange 15 is fixed to the left side of the outside of the inlet pipe 16. The first mounting flange 14 and the second mounting flange 15 are fixed by bolts and nuts, and the flue gas duct 11 is connected to the inside of the inlet pipe 16.

[0031] Working principle: When the inlet structure of the drying tower of the present invention is used, a barrier 17 is fixed inside the flue gas duct 11 near the first mounting flange 14, which can be used to block the dilute acid and prevent the dilute acid from entering the tower body 1 through the inlet pipe 16. At the same time, a discharge port 10 is fixed on the right side of the bottom end of the flue gas duct 11. A large amount of dilute acid solution produced by condensation can flow out directly from the discharge port 10 and be introduced into the interior of the recovery tank 6 through the discharge pipe 9 and the second connecting pipe 7 to be collected. The concentrated dilute acid is discharged outside the tower, and an acid return pipe 2 can be installed at the bottom end of the first valve 3 at the bottom of the recovery tank 6 to return the collected dilute acid to the outside of the tower. Return to the acid-making system to adjust the acid concentration. At the same time, during the installation and use of the inlet structure, an outer cover 13 is fixed to the outside of the inlet structure. The outer cover 13 and the side cover 5 can be used to provide auxiliary cover for the inlet structure components of the drying tower to prevent dust and water. When the inlet structure of the drying tower is installed and used, the connecting ring 23 can be inserted into the inside of the card slot 22 on the left side of the inlet pipe 16. Then, the filter screen 24 provided inside the connecting ring 23 can be used to assist in filtering and removing some particulate impurities in the flue gas when the flue gas is transported into the interior of the tower body 1, thereby improving the purity of the flue gas.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A drying tower inlet structure with an acid discharge pipe, comprising a tower body (1) and a flue gas duct (11), characterized in that: An inlet pipe (16) is fixed to the top of the left side of the tower body (1), and a flue gas pipe (11) is provided on the left side of the inlet pipe (16), a fence (17) is fixed to the right side of the bottom end of the flue gas pipe (11), a discharge port (10) is fixed to the right side of the bottom end of the flue gas pipe (11), and a discharge pipe (9) is fixed to the bottom end of the discharge port (10), a second valve (8) is fixed to the bottom end of the discharge pipe (9), a recovery tank (6) is provided at the bottom end of the flue gas pipe (11), a second connecting pipe (7) is fixed to the top end of the recovery tank (6), a first connecting pipe (4) is fixed to the bottom end of the recovery tank (6), and a first valve (3) is fixed to the bottom end of the first connecting pipe (4), and an acid return pipe (2) is fixed to the bottom end of the first valve (3).

2. The drying tower inlet structure with an acid discharge pipe according to claim 1, characterized in that: The right side of the recovery trough (6) is fixedly connected to the left side of the tower body (1), and the enclosure (17) is a glass fiber reinforced plastic component.

3. The drying tower inlet structure with an acid discharge pipe according to claim 1, characterized in that: The top end of the second connecting pipe (7) is fixedly mounted to the bottom end of the second valve (8); the discharge port (10) is connected to the interior of the flue gas duct (11); the discharge pipe (9) is connected to the interior of the discharge port (10); the discharge pipe (9) is connected to the interior of the second connecting pipe (7) through the second valve (8); and the first connecting pipe (4) is connected to the interior of the acid return pipe (2) through the first valve (3).

4. The drying tower inlet structure with an acid discharge pipe according to claim 1, characterized in that: An outer cover (13) is welded and fixed to the left side of the tower body (1), and a side cover (5) is provided on the left side of the outer cover (13). The bottom end of the first connecting pipe (4) passes through the interior of the bottom end of the outer cover (13). Fixing frames (18) are fixed to the top and bottom of the left side of the rear end of the outer cover (13). Connecting feet (19) are fixed to the top and bottom of the rear end of the side cover (5). Locking rods (12) are provided on the top and bottom of the left front end of the side cover (5). Screw holes for fitting the locking rod (12) are provided on the top and bottom of the left front end of the outer cover (13). A slot (20) is provided inside the side cover (5).

5. The drying tower inlet structure with an acid discharge pipe according to claim 4, characterized in that: The locking rod (12) is provided with an external thread on its exterior. The right side of the locking rod (12) passes through the interior of the side cover (5) and is rotatably connected to the screw hole. The connecting foot (19) is hingedly connected to the interior of the fixing frame (18).

6. The drying tower inlet structure with an acid discharge pipe according to claim 5, characterized in that: The slot (20) passes through the interior of the side cover (5) and is in communication with the interior of the outer cover (13). A handle (21) is fixed to the front end of the left side of the side cover (5).

7. The drying tower inlet structure with an acid discharge pipe according to claim 1, characterized in that: A slot (22) is provided inside the left side of the inlet pipe (16), and a connecting ring (23) is provided inside the slot (22), and a filter screen (24) is fixed inside the connecting ring (23).

8. The drying tower inlet structure with an acid discharge pipe according to claim 1, characterized in that: A first mounting flange (14) is fixed to the right side of the outside of the flue gas duct (11), and a second mounting flange (15) is fixed to the left side of the outside of the inlet pipe (16). The first mounting flange (14) and the second mounting flange (15) are fixed by bolts, and the flue gas duct (11) is communicated with the inside of the inlet pipe (16).

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