Fuming sulfuric acid mist absorption device

Abstract

The utility model belongs to the technical field of acid mist absorption, and particularly relates to a fuming sulfuric acid mist absorption device which comprises an absorption tower, a fuming sulfuric acid storage tank and a smoke exhaust tower, an auxiliary component is arranged in the absorption tower, a secondary absorption mechanism is arranged in the smoke exhaust tower, a spraying mechanism is arranged outside the absorption tower, and a smoke exhaust mechanism is arranged outside the smoke exhaust tower. According to the acid mist absorption device, the mounting component and the auxiliary component are matched for use, so that the filling layer can be quickly disassembled and assembled, and the working efficiency and the acid mist absorption efficiency are improved; acid mist flowing through the filling layer can be neutralized and absorbed through the spraying mechanism, harmful substances in the fuming sulfuric acid mist can be preliminarily eliminated, cyclic utilization is achieved, energy waste is reduced, other gas subjected to preliminary absorption can be secondarily absorbed and removed through cooperative use of the secondary absorption mechanism and the smoke exhaust mechanism, and the energy consumption is reduced. Therefore, the content of harmful substances in exhausted gas is reduced, the emission standard is improved, and the purpose of protecting the environment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of acid mist absorption, in particular to a fuming sulfuric acid mist absorption device. Background Art

[0002] Oleum is a strongly acidic compound whose main component is sulfuric acid and contains free sulfur trioxide. It is a highly corrosive and strongly oxidizing liquid commonly used in industrial and chemical synthesis processes. Because the acid mist it produces is hazardous, appropriate safety measures must be taken during its use and handling to protect operators and the environment. Oleum mist absorption refers to the process of removing or neutralizing the acid mist produced by oleum in the environment through various means. Oleum mist is primarily composed of fine droplets formed by a mixture of sulfuric acid and sulfur trioxide. It is highly corrosive and toxic, posing a potential hazard to human health and the environment. Therefore, it is extremely important to control and absorb this acid mist. Existing methods for absorbing acid mist include dry absorption, gas purification equipment, chemical neutralization, and wet absorption. The principle of wet absorption is to absorb the sulfuric acid and sulfur trioxide in the acid mist by spraying water or other liquids into the filling layer inside the absorption tower.

[0003] The existing technology has the following defects or problems:

[0004] First, the filling layer inside the existing absorption tower is difficult to replace, requiring significant labor and time. Second, the existing fume exhaust towers used in conjunction with the absorption tower lack or have relatively simple absorption measures, failing to fully treat the harmful substances in the remaining gas after the acid mist is neutralized. This can easily cause harm to personnel and the environment during exhaust. Therefore, it is necessary to propose an oleum acid mist absorption device.

[0005] It should be noted that the above content falls within the technical knowledge of the inventor and does not necessarily constitute prior art. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a fuming sulfuric acid mist absorption device, which solves the existing problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuming sulfuric acid mist absorption device, comprising an absorption tower, a fuming sulfuric acid storage tank and a smoke exhaust tower, wherein an installation component is provided inside the absorption tower, and the installation component comprises a plurality of movable grooves, and the plurality of movable grooves are symmetrically opened inside the absorption tower, and the interior of each of the movable grooves is slidably connected to a limiting block, one side of each of the limiting blocks is fixedly connected to an inclined block, and the other side of each of the limiting blocks is fixedly connected to a sliding rod, and a spring is fixedly connected between each of the limiting blocks and the inner wall of the corresponding movable groove, and the other end of each of the sliding rods passes through the absorption tower and is fixedly connected to a pull ring, and a pull rod is fixedly connected between every two adjacent pull rings, an auxiliary component is provided inside the absorption tower, a secondary absorption mechanism is provided inside the smoke exhaust tower, a spray mechanism is provided outside the absorption tower, and a smoke exhaust mechanism is provided outside the smoke exhaust tower.

[0008] As a preferred technical solution of the present invention, the auxiliary component includes two filling layers, the outside of each filling layer is fixedly connected to an isolation plate, the outside of each isolation plate is fixedly connected to a pull plate, the outside of each pull plate is symmetrically fixedly connected to a matching inclined rod, the inside of each inclined rod is provided with a slot for matching an inclined block, the inside of the fuming sulfuric acid storage tank is symmetrically provided with slots for matching inclined rods, and the inside of each pull plate is provided with a pull groove.

[0009] As an optimal technical solution of the present invention, the secondary absorption mechanism includes a limit frame, which is fixedly connected to the inner wall of the smoke exhaust tower. A square frame is arranged above the limit frame, and a filter plate is symmetrically fixedly connected to the inside of the square frame. A plurality of filling balls are arranged between the two filter plates.

[0010] As an optimal technical solution of the present invention, the spray mechanism includes a water pump, the input end of the water pump is fixedly connected to a water pumping pipe, and the other end of the water pumping pipe extends to the interior of the absorption tower, the output end of the water pump is fixedly connected to a water guide pipe, the interior of the water guide pipe is connected to two water distribution pipes, the other ends of the two water distribution pipes extend to the interior of the absorption tower and are fixedly connected to a spray rack, and spray heads are equidistantly installed inside the two spray racks, and each of the spray heads is located above the corresponding filling layer.

[0011] As an optimal technical solution of the present invention, the smoke exhaust mechanism includes a vacuum pump, the input end of the vacuum pump is fixedly connected to an exhaust pipe, the other end of the exhaust pipe is connected to the fuming sulfuric acid storage tank, and the output end of the vacuum pump is fixedly connected to an exhaust pipe, the other end of the exhaust pipe extends to the interior of the smoke exhaust tower.

[0012] As an optimal technical solution of the present invention, a smoke guide pipe is connected between the absorption tower and the fuming sulfuric acid storage tank, and the interior of the absorption tower is symmetrically provided with mounting grooves for use with the filling layer, and the inner wall of the absorption tower is symmetrically fixedly connected with guide support strips for use with the filling layer.

[0013] Compared with the prior art, the present invention provides a device for absorbing fuming sulfuric acid mist, which has the following beneficial effects:

[0014] 1. The fuming sulfuric acid mist absorption device is provided with an installation component and an auxiliary component. Through the coordinated use of the installation component and the auxiliary component, the filling layer can be quickly disassembled and assembled, thereby improving work efficiency and acid mist absorption efficiency, and reducing labor costs and time costs;

[0015] 2. The oleum mist absorption device is provided with a spraying mechanism, a smoke exhaust mechanism and a secondary absorption mechanism. The spraying mechanism can neutralize and absorb the acid mist flowing through the filling layer, preliminarily eliminate harmful substances in the oleum mist, and realize recycling, thereby reducing energy waste. Through the coordinated use of the secondary absorption mechanism and the smoke exhaust mechanism, the remaining gas after the preliminary absorption can be removed by secondary absorption, thereby reducing the content of harmful substances in the exhausted gas, improving the emission standard, and thus achieving the purpose of protecting the environment and protecting personnel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the absorption tower of the utility model;

[0018] Figure 3 This is a schematic diagram of the top cross-sectional structure of the absorption tower of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the installation assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the auxiliary components of the utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the smoke exhaust tower of the utility model;

[0022] Figure 7 This is a structural diagram of the spray mechanism of the utility model;

[0023] Figure 8 It is a structural diagram of the smoke exhaust mechanism of the present utility model.

[0024] In the figure: 1. Absorption tower; 2. Oleum storage tank; 3. Fume exhaust tower; 4. Mounting assembly; 401. Movable slot; 402. Limit block; 403. Inclined block; 404. Sliding rod; 405. Spring; 406. Pull ring; 407. Pull rod; 5. Auxiliary assembly; 501. Filling layer; 502. Isolation plate; 503. Pull plate; 504. Inclined rod; 505. Slot; 506. Slot; 507. Pull groove; 6 , secondary absorption mechanism; 601, limit frame; 602, square frame; 603, filter plate; 604, filling ball; 7, spray mechanism; 701, water pump; 702, suction pipe; 703, water guide pipe; 704, water distribution pipe; 705, spray rack; 706, sprinkler head; 8, smoke exhaust mechanism; 801, vacuum fan; 802, suction pipe; 803, exhaust pipe; 9, smoke guide pipe; 10, installation groove; 11, guide support bar. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0026] 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.

[0027] Example 1

[0028] like Figure 3 、 Figure 4 and Figure 5As shown, the utility model provides a technical solution: a fuming sulfuric acid mist absorption device, comprising an absorption tower 1, a fuming sulfuric acid storage tank 2 and a smoke exhaust tower 3, an interior of the absorption tower 1 is provided with a mounting assembly 4, the mounting assembly 4 comprises a plurality of movable grooves 401, and the plurality of movable grooves 401 are symmetrically arranged in the interior of the absorption tower 1, the interior of each movable groove 401 is slidably connected to a limiting block 402, one side of each limiting block 402 is fixedly connected to an inclined block 403, the other side of each limiting block 402 is fixedly connected to a sliding rod 404, each limiting block 402 is fixedly connected to the inner wall of the corresponding movable groove 401 with a spring 405, the other end of each sliding rod 404 passes through the absorption tower 1 and is fixedly connected to a pull ring 406, and there is a spring 405 between every two adjacent pull rings 406. A pull rod 407 is fixedly connected, an auxiliary component 5 is provided inside the absorption tower 1, a secondary absorption mechanism 6 is provided inside the smoke exhaust tower 3, a spray mechanism 7 is provided outside the absorption tower 1, and a smoke exhaust mechanism 8 is provided outside the smoke exhaust tower 3. The auxiliary component 5 includes two filling layers 501, and the outside of each filling layer 501 is fixedly connected to an isolation plate 502, and the outside of each isolation plate 502 is fixedly connected to a pull plate 503. The outside of each pull plate 503 is symmetrically fixedly connected to a matching inclined rod 504, and the inside of each inclined rod 504 is provided with a card slot 505 for matching the inclined block 403. The inside of the fuming sulfuric acid storage tank 2 is symmetrically provided with a slot 506 for matching the inclined rod 504, and the inside of each pull plate 503 is provided with a pull groove 507.

[0029] In this embodiment, the isolation plate 502 and the filling layer 501 are driven to be inserted from the installation groove 10 into the interior of the absorption tower 1 by the pull plate 503, and the filling layer 501 moves on the guide support bar 11. The guide support bar 11 can support and guide the filling layer 501, and the pull plate 503 drives the inclined surface insertion rod 504 to be inserted into the interior of the slot 506 and squeeze the inclined surface block 403. The inclined surface block 403 is squeezed and retracts to the interior of the movable groove 401 and drives the limit block 402 to move. When the limit block 402 moves, it drives the slide rod 404 to slide and squeezes the spring 405 to cause it to deform. When the slide rod 404 moves, it drives the pull ring 406 to move. When the pull ring 406 moves, it drives the pull rod 407 to move. When the cam 404 is in the closed position, the cam 403 is in the closed position, and the cam 403 is in the closed position, so that the cam 403 can be quickly installed.

[0030] Example 2

[0031] like Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8 As shown, the secondary absorption mechanism 6 includes a limit frame 601, which is fixedly connected to the inner wall of the smoke exhaust tower 3. A square frame 602 is provided above the limit frame 601. Filter plates 603 are symmetrically fixedly connected to the interior of the square frame 602. A plurality of filling balls 604 are provided between the two filter plates 603. The spray mechanism 7 includes a water pump 701. The input end of the water pump 701 is fixedly connected to a water pumping pipe 702, and the other end of the water pumping pipe 702 extends to the interior of the absorption tower 1. The output end of the water pump 701 is fixedly connected to a water guide pipe 703. The interior of the water guide pipe 703 is connected to two water distribution pipes 704. The other ends of the two water distribution pipes 704 extend to the interior of the absorption tower 1 and are fixedly connected to the spray rack 70 5. Spray heads 706 are installed at equal intervals inside the two spray racks 705, and each spray head 706 is located above the corresponding filling layer 501; the smoke exhaust mechanism 8 includes an exhaust fan 801, the input end of the exhaust fan 801 is fixedly connected to an exhaust pipe 802, the other end of the exhaust pipe 802 is connected to the oleum storage tank 2, the output end of the exhaust fan 801 is fixedly connected to an exhaust pipe 803, and the other end of the exhaust pipe 803 extends to the interior of the smoke exhaust tower 3; a smoke guide pipe 9 is connected between the absorption tower 1 and the oleum storage tank 2, and the interior of the absorption tower 1 is symmetrically provided with mounting grooves 10 used to cooperate with the filling layer 501, and the inner wall of the absorption tower 1 is symmetrically fixedly connected with guide support bars 11 used to cooperate with the filling layer 501.

[0032] In this embodiment, the fluid inside the absorption tower 1 is extracted by a water pump 701 and a water extraction pipe 702, and then the fluid is introduced into two water distribution pipes 704 from a water guide pipe 703. Finally, the fluid is sprayed from a spray head 706 to the filling layer 501 through which the acid mist flows through a spray rack 705, thereby neutralizing and eliminating harmful gases in the fuming sulfuric acid mist. The neutralized fluid falls back to the bottom of the absorption tower 1 through the pores in the filling layer 501, thereby achieving recycling and reducing energy waste. The remaining gas after the initial elimination inside the absorption tower 1 is extracted through the vacuum fan 801 and the exhaust pipe 802, and then discharged into the smoke exhaust tower 3 through the exhaust pipe 803. The remaining gas entering the smoke exhaust tower 3 continues to rise, and passes through the filter plate 603 inside the smoke exhaust tower 3 into the square frame 602, and is continuously slowed down by multiple filling balls 604 in terms of rising speed, so that the filling balls 604 can absorb and remove the remaining harmful objects in the gas. Finally, the qualified gas after the second absorption is discharged from the outlet of the smoke exhaust tower 3.

[0033] The working principle of this embodiment: When in use, the isolation plate 502 and the filling layer 501 are driven by the pull plate 503 to be inserted from the installation groove 10 into the interior of the absorption tower 1, and the filling layer 501 moves on the guide support bar 11. The guide support bar 11 can support and guide the filling layer 501, and the pull plate 503 drives the inclined surface insertion rod 504 to be inserted into the interior of the slot 506 and squeeze the inclined surface block 403. The inclined surface block 403 is squeezed and retracts to the interior of the movable groove 401 and drives the limit block 402 to move. When the limit block 402 moves, it drives the slide rod 404 to slide and squeezes the spring 405 to cause it to deform. When the slide rod 404 moves, it drives the pull ring 406 to move, and when the pull ring 406 moves, it drives the pull rod When the cam 407 is moved, after the inclined surface rod 504 is completely inserted into the interior of the slot 506, the slot 505 and the inclined surface block 403 are located at the same horizontal line. At this time, the inclined surface block 403 is affected by the reaction force of the spring 405, rebounds and resets and is stuck into the interior of the slot 505, thereby completing the rapid installation of the filling layer 501; after long-term use, when the filling layer 501 needs to be replaced: the pull ring 406 is driven to move by the pull rod 407, and the pull ring 406 moves and the slide rod 404 moves, and the slide rod 404 moves and drives the inclined surface block 403 out of the interior of the slot 505, and the filling layer 501 can be taken out and replaced, which has high disassembly and assembly efficiency, is convenient for replacing the filling layer 501, and improves the acid mist absorption efficiency. The oleum mist inside the oleum storage tank 2 enters the interior of the absorption tower 1 through the smoke guide pipe 9, and the acid mist continues to rise inside the absorption tower 1. At this time, the fluid inside the absorption tower 1 is extracted by the water pump 701 and the water extraction pipe 702, and then the fluid is introduced into the two water distribution pipes 704 from the water guide pipe 703. Finally, it passes through the spray rack 705 and is sprayed from the spray head 706 to the filling layer 501 through which the acid mist flows, thereby neutralizing and eliminating the harmful gases in the oleum mist. The neutralized fluid falls back to the bottom of the absorption tower 1 through the holes in the filling layer 501, achieving recycling and reducing energy waste. The remaining gas after the initial elimination inside the absorption tower 1 is extracted through the vacuum fan 801 and the exhaust pipe 802, and then discharged into the smoke exhaust tower 3 through the exhaust pipe 803. The remaining gas entering the smoke exhaust tower 3 continues to rise, and passes through the filter plate 603 inside the smoke exhaust tower 3 into the square frame 602, and is continuously slowed down by multiple filling balls 604 in terms of rising speed, so that the filling balls 604 can absorb and remove the remaining harmful objects in the gas. Finally, the qualified gas after the second absorption is discharged from the outlet of the smoke exhaust tower 3.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A fuming sulfuric acid mist absorption device, characterized in that: The invention comprises an absorption tower (1), an oleum storage tank (2) and a smoke exhaust tower (3); a mounting assembly (4) is provided inside the absorption tower (1); the mounting assembly (4) comprises a plurality of movable grooves (401); the plurality of movable grooves (401) are symmetrically arranged inside the absorption tower (1); a limiting block (402) is slidably connected inside each movable groove (401); one side of each limiting block (402) is fixedly connected to a bevel block (403); the other side of each limiting block (402) is fixedly connected to a slide rod (404); each limiting block (402) is fixedly connected to a slide rod (404); and each limiting block (402) is fixedly connected to a slide rod (404). A spring (405) is fixedly connected between the block (402) and the inner wall of the corresponding movable groove (401); the other end of each sliding rod (404) passes through the absorption tower (1) and is fixedly connected to a pull ring (406); a pull rod (407) is fixedly connected between every two adjacent pull rings (406); an auxiliary component (5) is provided inside the absorption tower (1); a secondary absorption mechanism (6) is provided inside the smoke exhaust tower (3); a spray mechanism (7) is provided outside the absorption tower (1); and a smoke exhaust mechanism (8) is provided outside the smoke exhaust tower (3).

2. The fuming sulfuric acid mist absorption device according to claim 1, characterized in that: The auxiliary component (5) comprises two filling layers (501), the outside of each filling layer (501) is fixedly connected to an isolation plate (502), the outside of each isolation plate (502) is fixedly connected to a pull plate (503), the outside of each pull plate (503) is symmetrically fixedly connected to a matching inclined surface insertion rod (504), the inside of each inclined surface insertion rod (504) is provided with a card slot (505) for matching the inclined surface block (403), the inside of the oleum storage tank (2) is symmetrically provided with a slot (506) for matching the inclined surface insertion rod (504), and the inside of each pull plate (503) is provided with a pull groove (507).

3. The fuming sulfuric acid mist absorption device according to claim 1, characterized in that: The secondary absorption mechanism (6) comprises a limit frame (601), the limit frame (601) is fixedly connected to the inner wall of the smoke exhaust tower (3), a square frame (602) is arranged above the limit frame (601), a filter plate (603) is symmetrically fixedly connected inside the square frame (602), and a plurality of filling balls (604) are arranged between two filter plates (603).

4. The fuming sulfuric acid mist absorption device according to claim 1, characterized in that: The spray mechanism (7) comprises a water pump (701), the input end of the water pump (701) is fixedly connected to a water pumping pipe (702), and the other end of the water pumping pipe (702) extends to the interior of the absorption tower (1); the output end of the water pump (701) is fixedly connected to a water guide pipe (703), the interior of the water guide pipe (703) is connected to two water distribution pipes (704), the other ends of the two water distribution pipes (704) both extend to the interior of the absorption tower (1) and are fixedly connected to a spray rack (705), and spray heads (706) are equidistantly installed inside the two spray racks (705), and each of the spray heads (706) is located above the corresponding filling layer (501).

5. The fuming sulfuric acid mist absorption device according to claim 1, characterized in that: The smoke exhaust mechanism (8) comprises an air pump (801), an input end of the air pump (801) is fixedly connected to an air extraction pipe (802), the other end of the air extraction pipe (802) is in communication with the oleum storage tank (2), and an output end of the air pump (801) is fixedly connected to an exhaust pipe (803), the other end of the exhaust pipe (803) extends to the interior of the smoke exhaust tower (3).

6. The fuming sulfuric acid mist absorption device according to claim 1, characterized in that: A smoke guide pipe (9) is connected between the absorption tower (1) and the oleum storage tank (2); mounting grooves (10) for use with a filling layer (501) are symmetrically provided inside the absorption tower (1); and guide support bars (11) for use with the filling layer (501) are symmetrically fixedly connected to the inner wall of the absorption tower (1).

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