Refined sulfuric acid production device of smelting flue gas acid making system

Abstract

The utility model discloses a refined sulfuric acid production device of a smelting flue gas acid making system, which comprises a filter box and a gas inlet pipe, the gas inlet pipe is mounted on the side wall of the filter box and extends into the filter box, a catalytic box is arranged on one side of the filter box, a production tank is arranged on one side of the catalytic box, and a gas inlet pipe is arranged on the other side of the catalytic box. A catalytic box is installed at the bottom end of the filter box and communicates with the production tank, a connecting pipe is installed at the bottom end of the filter box and communicates with the catalytic box, a reducing sleeve is installed at the top end of the production tank, a movable pipe is movably installed in the reducing sleeve, and a hollow rotating frame is installed at the bottom end of the movable pipe; a plurality of sets of water spraying pipes are installed at the bottom end of the hollow rotating frame at equal intervals, and the surface of the movable pipe is sleeved with a fluted disc. According to the utility model, convenient reciprocating swing oxygen injection is realized, the contact area between sulfur dioxide and oxygen is conveniently increased, and the effect of refining sulfuric acid is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refined sulfuric acid devices, in particular to a device for producing refined sulfuric acid in a smelting flue gas acid-making system. Background Art

[0002] Smelting flue gas acidification is a production process that converts sulfur dioxide in the flue gas generated during the smelting process into sulfuric acid. This process is mainly used to treat flue gas containing high concentrations of sulfur dioxide generated during the smelting process. Through purification, conversion and absorption processes, the waste gas is converted into valuable sulfuric acid products, which not only achieves resource recycling but also reduces environmental pollution. In order to better refine sulfuric acid, a smelting flue gas acidification system for producing refined sulfuric acid is proposed.

[0003] For example, a desulfurization device of a flue gas acid-making system disclosed in the authorization announcement number CN220715405U includes a desulfurization box, an air inlet pipe is installed at the bottom end of one side of the desulfurization box, and an air outlet pipe is installed at the bottom end of the other side. A partition is installed in the desulfurization box, and the partition divides the inner cavity of the desulfurization box into a desulfurization cavity and an overflow cavity. One end of the air inlet pipe extends into the desulfurization cavity, and one end of the air outlet pipe extends into the overflow cavity. A sewage pipe outlet is installed at the bottom of the desulfurization cavity, a first gas uniform distribution mechanism is installed at the bottom end of the desulfurization cavity, and a second gas uniform distribution mechanism is installed at the top of the desulfurization cavity.

[0004] Although it realizes the cooperation between the backwash pipe and the nozzle three, during the water spraying process, the bottom of the uniform distribution plate 1 and the uniform distribution plate 2 are sprayed with water, and at the same time, the water spray pipe 1 sprays water on the top of the uniform distribution plate 1 and the uniform distribution plate 2 to prevent scaling of the uniform distribution plate 1 and the uniform distribution plate 2;

[0005] However, the problem that the existing refined sulfuric acid device is not conducive to convenient reciprocating swing oxygen injection during use and is not conducive to increasing the contact area between sulfur dioxide and oxygen, thus affecting the effect of refined sulfuric acid, has not been solved. Utility Model Content

[0006] The purpose of the utility model is to provide a device for producing refined sulfuric acid in a smelting flue gas acid-making system, so as to solve the problem in the above-mentioned background technology that the refined sulfuric acid device is not convenient for convenient reciprocating swing oxygen injection, which is not conducive to increasing the contact area between sulfur dioxide and oxygen, and affects the effect of refined sulfuric acid.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smelting fume sulphuric acid production system for producing refined sulfuric acid, comprising a filter box and an air intake pipe, wherein the side wall of the filter box is provided with an air intake pipe, and the air intake pipe extends to the interior of the filter box, a catalytic box is provided on one side of the filter box, a production tank is provided on one side of the catalytic box, and the catalytic box is connected to the production tank, a connecting pipe is installed at the bottom end of the filter box, and the connecting pipe is connected to the catalytic box, an adapter sleeve is installed at the top of the production tank, a movable pipe is movably installed inside the adapter sleeve, a hollow rotating frame is installed at the bottom end of the movable pipe, and a plurality of water spray pipes with equal spacing are installed at the bottom end of the hollow rotating frame, a gear disc is mounted on the surface of the movable pipe, and a servo motor is installed on the inner wall of the production tank on one side of the movable pipe, a drive shaft is installed at the output end of the servo motor, a gear is installed at the bottom end of the drive shaft, and the gear and the gear disc are meshed with each other.

[0008] Preferably, a mounting plate is installed inside the filter box, and a plurality of groups of cloth bags with equal intervals are installed inside the mounting plate.

[0009] Preferably, tracks are symmetrically mounted on the inner wall of the catalyst box, a baffle is provided inside the catalyst box on one side of the track, and a movable frame is provided between the two sets of tracks.

[0010] Preferably, an oxygen pump is installed at the top of the catalyst box, and a reciprocating motor is installed at the top of the catalyst box on one side of the oxygen pump.

[0011] Preferably, a transmission shaft is installed at the output end of the reciprocating motor, and a swing block is installed on the surface of the transmission shaft.

[0012] Preferably, a connecting rod is installed at one end of the swing block away from the transmission shaft, a roller is movably installed on the surface of the connecting rod, and the roller is slidably connected to the movable frame.

[0013] Preferably, two sets of movable wheels are symmetrically mounted on the side walls of the movable frame, and the movable wheels are slidably connected to the track.

[0014] Preferably, a plurality of jet racks are installed at the bottom end of the movable rack, and the jet racks are connected to the movable rack.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the refined sulfuric acid device not only realizes convenient reciprocating swing oxygen injection, which is convenient for increasing the contact area between sulfur dioxide and oxygen, but also improves the effect of refined sulfuric acid;

[0016] (1) First, the high-temperature smelting flue gas is connected to the inside of the air inlet pipe. The smelting flue gas enters the inside of the filter box through the air inlet pipe. Under the action of gas pressure, the smelting flue gas flows through the bag to the inside of the connecting pipe. The bag filters the smoke in the smelting flue gas. The smelting flue gas enters the inside of the catalytic box through the connecting pipe. The baffle prevents the smelting flue gas from being discharged too fast. The oxygen pump injects oxygen into the inside of the jet rack through the flexible pipe and sprays it from the surface of the jet rack, so that the sulfur dioxide in the smelting flue gas reacts with oxygen to become high-temperature sulfur trioxide. The reciprocating motor drives the transmission shaft to rotate, and the transmission shaft drives the connecting rod to rotate through the swing block, and the oxygen pump drives the roller to move back and forth inside the mobile frame. Under the sliding cooperation of the movable wheel and the track, the roller drives the mobile frame to swing back and forth, and the mobile frame drives the jet frame to swing back and forth, thereby injecting oxygen into the smelting flue gas through reciprocating swinging to increase the contact area between sulfur dioxide and oxygen, thereby improving the oxidation generation effect of sulfur trioxide, realizing convenient reciprocating swing oxygen injection, facilitating the increase of the contact area between sulfur dioxide and oxygen, and improving the generation effect of sulfur trioxide.

[0017] (2) The high-temperature sulfur trioxide is in gaseous form. After the gaseous sulfur trioxide flows into the interior of the production tank, the external water source is introduced into the interior of the hollow rotating frame through the adapter sleeve and the movable pipe, and is sprayed out through the water pipe. The gaseous sulfur trioxide contacts with water and dissolves in water to generate sulfuric acid. The servo motor drives the gear to rotate through the drive shaft, and the gear plate drives the movable pipe to rotate. The movable pipe drives the hollow rotating frame and the water pipe to rotate, so that the water pipe rotates to spray water, thereby making the gaseous sulfur trioxide contact with water more fully, thereby improving the effect of refined sulfuric acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 3 This is a three-dimensional perspective structural diagram of the filter box of the present invention;

[0021] Figure 4 This is a three-dimensional perspective structural diagram of the catalyst box of the present invention;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the jet rack of the present invention;

[0023] Figure 6 This is a three-dimensional perspective structural diagram of the production tank of the utility model.

[0024] In the figure: 1. Filter box; 2. Air intake pipe; 3. Catalytic box; 4. Production tank; 5. Mounting plate; 6. Cloth bag; 7. Connecting pipe; 8. Water spray pipe; 9. Jet frame; 10. Baffle; 11. Track; 12. Reciprocating motor; 13. Transmission shaft; 14. Swing block; 15. Roller; 16. Moving frame; 17. Hollow rotating frame; 18. Movable wheel; 19. Adapter sleeve; 20. Servo motor; 21. Drive shaft; 22. Gear; 23. Spur disc; 24. Movable pipe; 25. Oxygen pump; 26. Connecting rod. DETAILED DESCRIPTION

[0025] 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.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] Example 1

[0029] See also Figure 1-6The utility model provides an embodiment: a smelting flue gas acid-making system for producing refined sulfuric acid, comprising a filter box 1 and an air inlet pipe 2, an air inlet pipe 2 being installed on the side wall of the filter box 1, and the air inlet pipe 2 extending to the interior of the filter box 1, a catalyst box 3 being provided on one side of the filter box 1, a production tank 4 being provided on one side of the catalyst box 3, and the catalyst box 3 being connected to the production tank 4, a connecting pipe 7 being installed at the bottom end of the filter box 1, and the connecting pipe 7 being connected to the catalyst box 3, a transfer sleeve 19 being installed at the top end of the production tank 4, and a transfer sleeve 19 being installed at the top end of the transfer sleeve 19. A movable tube 24 is movably installed inside the socket 19, and a hollow rotating frame 17 is installed at the bottom end of the movable tube 24. A plurality of water spray pipes 8 are installed at the bottom end of the hollow rotating frame 17 at equal intervals. A toothed disc 23 is mounted on the surface of the movable tube 24. A servo motor 20 is installed on the inner wall of the production tank 4 on one side of the movable tube 24. The servo motor 20 plays a role of power drive. A drive shaft 21 is installed at the output end of the servo motor 20. A gear 22 is installed at the bottom end of the drive shaft 21, and the gear 22 and the toothed disc 23 are meshed with each other.

[0030] First, the high-temperature smelting flue gas is connected to the inside of the air inlet pipe 2, and the smelting flue gas enters the inside of the filter box 1 through the air inlet pipe 2. Under the action of gas pressure, the smelting flue gas flows through the bag 6 to the inside of the connecting pipe 7, and the bag 6 is used to filter the smoke in the smelting flue gas. The smelting flue gas passes through the connecting pipe 7 and enters the inside of the catalytic box 3, wherein the baffle 10 is used to prevent the smelting flue gas from being discharged too quickly. At this time, the oxygen pump 25 is turned on, and oxygen is injected into the inside of the injection rack 9 through the flexible pipe by the oxygen pump 25 and sprayed from the surface of the injection rack 9, so that the sulfur dioxide in the smelting flue gas reacts with the oxygen to form high-temperature sulfur trioxide. The reciprocating motor 1 is turned on. 2. The reciprocating motor 12 drives the transmission shaft 13 to rotate, and the transmission shaft 13 drives the connecting rod 26 to rotate through the swing block 14. The oxygen pump 25 drives the roller 15 to reciprocate inside the movable frame 16. Under the sliding cooperation of the movable wheel 18 and the track 11, the roller 15 drives the movable frame 16 to swing back and forth, and the movable frame 16 drives the injection frame 9 to swing back and forth, thereby injecting oxygen into the smelting flue gas through reciprocating swinging, thereby increasing the contact area between sulfur dioxide and oxygen, thereby improving the oxidation generation effect of sulfur trioxide, realizing convenient reciprocating swinging oxygen injection, facilitating increasing the contact area between sulfur dioxide and oxygen, and improving the generation effect of sulfur trioxide;

[0031] A mounting plate 5 is installed inside the filter box 1, and multiple groups of cloth bags 6 are installed inside the mounting plate 5 at equal intervals;

[0032] Tracks 11 are symmetrically mounted on the inner wall of the catalyst box 3. A baffle 10 is provided inside the catalyst box 3 on one side of the track 11, and a movable frame 16 is provided between the two sets of tracks 11.

[0033] An oxygen pump 25 is installed at the top of the catalyst box 3, and a reciprocating motor 12 is installed at the top of the catalyst box 3 on one side of the oxygen pump 25. The reciprocating motor 12 plays the role of power drive;

[0034] A transmission shaft 13 is mounted on the output end of the reciprocating motor 12, and a swing block 14 is mounted on the surface of the transmission shaft 13;

[0035] A connecting rod 26 is mounted on one end of the swing block 14 away from the transmission shaft 13. A roller 15 is movably mounted on the surface of the connecting rod 26, and the roller 15 is slidably connected to the movable frame 16. Two sets of movable wheels 18 are symmetrically mounted on the side walls of the movable frame 16, and the movable wheels 18 are slidably connected to the track 11. A plurality of jet racks 9 are mounted on the bottom end of the movable frame 16, and the jet racks 9 are connected to the movable frame 16.

[0036] High-temperature sulfur trioxide is in gaseous form. After the gaseous sulfur trioxide flows into the interior of the production tank 4, the external water source is introduced into the interior of the hollow rotating frame 17 through the adapter sleeve 19 and the movable pipe 24, and is sprayed out through the water spray pipe 8. The gaseous sulfur trioxide contacts and dissolves in the water to generate sulfuric acid. The servo motor 20 is turned on, and the servo motor 20 drives the gear 22 to rotate through the drive shaft 21. Under the mutual engagement of the gear 22 and the toothed disc 23, and the active cooperation of the movable pipe 24 and the adapter sleeve 19, the toothed disc 23 drives the movable pipe 24 to rotate, and the movable pipe 24 drives the hollow rotating frame 17 and the water spray pipe 8 to rotate, so that the water spray pipe 8 rotates to spray water, thereby making the gaseous sulfur trioxide contact with water more fully, thereby improving the effect of refined sulfuric acid.

[0037] Working steps

[0038] First, the high-temperature smelting flue gas is connected to the inside of the air inlet pipe 2, and the smelting flue gas enters the inside of the filter box 1 through the air inlet pipe 2. Under the action of gas pressure, the smelting flue gas flows through the cloth bag 6 to the inside of the connecting pipe 7, and the cloth bag 6 is used to filter the smoke in the smelting flue gas. The smelting flue gas enters the inside of the catalytic box 3 through the connecting pipe 7, wherein the baffle 10 is used to prevent the smelting flue gas from being discharged too quickly. The oxygen pump 25 injects oxygen into the inside of the jet rack 9 through the flexible pipe and sprays it from the surface of the jet rack 9, so that the sulfur dioxide in the smelting flue gas reacts with the oxygen to form high-temperature sulfur trioxide. The reciprocating motor 12 drives the transmission shaft 13 to rotate, and the transmission shaft 13 drives the connecting rod 26 to rotate through the swing block 14. The oxygen pump 25 drives the roller 15 to reciprocate inside the movable rack 16, and the roller 15 drives the movable rack 16 to move back and forth. The frame 16 swings back and forth, and the movable frame 16 drives the injection frame 9 to swing back and forth, thereby injecting oxygen into the smelting flue gas by swinging back and forth, so as to increase the contact area between sulfur dioxide and oxygen, thereby improving the oxidation generation effect of sulfur trioxide. High-temperature sulfur trioxide is gaseous. After the gaseous sulfur trioxide flows into the interior of the production tank 4, the external water source is introduced into the interior of the hollow rotating frame 17 through the adapter sleeve 19 through the movable pipe 24, and is sprayed out through the water pipe 8. The gaseous sulfur trioxide contacts and dissolves in the water to generate sulfuric acid. The servo motor 20 drives the gear 22 to rotate through the drive shaft 21, and the gear plate 23 drives the movable pipe 24 to rotate. The movable pipe 24 drives the hollow rotating frame 17 and the water pipe 8 to rotate, so that the water pipe 8 rotates to spray water, so that the gaseous sulfur trioxide and water are more fully in contact, thereby improving the effect of refined sulfuric acid.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refined sulfuric acid production device using a smelting flue gas acid-making system, comprising a filter box and an air inlet pipe, characterized in that: An air intake pipe is installed on the side wall of the filter box, and the air intake pipe extends to the interior of the filter box, a catalytic box is provided on one side of the filter box, a production tank is provided on one side of the catalytic box, and the catalytic box is communicated with the production tank, a connecting pipe is installed at the bottom end of the filter box, and the connecting pipe is communicated with the catalytic box, an adapter sleeve is installed at the top of the production tank, a movable pipe is movably installed inside the adapter sleeve, a hollow rotating frame is installed at the bottom end of the movable pipe, a plurality of groups of water spray pipes with equal spacing are installed at the bottom end of the hollow rotating frame, a gear disc is installed on the surface of the movable pipe, a servo motor is installed on the inner wall of the production tank on one side of the movable tube, a drive shaft is installed at the output end of the servo motor, a gear is installed at the bottom end of the drive shaft, and the gear and the gear disc are meshed with each other.

2. The refined sulfuric acid production device of the smelting flue gas acid-making system according to claim 1, characterized in that: A mounting plate is installed inside the filter box, and a plurality of groups of cloth bags are installed inside the mounting plate at equal intervals.

3. The refined sulfuric acid production device of the smelting flue gas acid-making system according to claim 1, characterized in that: Tracks are symmetrically installed on the inner wall of the catalytic box, a baffle is provided inside the catalytic box on one side of the track, and a movable frame is provided between the two sets of tracks.

4. The device for producing refined sulfuric acid using a smelting flue gas acid-making system according to claim 1, characterized in that: An oxygen pump is installed on the top of the catalytic box, and a reciprocating motor is installed on the top of the catalytic box on one side of the oxygen pump.

5. The device for producing refined sulfuric acid using a smelting flue gas acid-making system according to claim 4, characterized in that: A transmission shaft is installed at the output end of the reciprocating motor, and a swing block is installed on the surface of the transmission shaft.

6. The refined sulfuric acid production device of the smelting flue gas acid-making system according to claim 5, characterized in that: A connecting rod is installed on one end of the swing block away from the transmission shaft, a roller is movably installed on the surface of the connecting rod, and the roller is slidably connected to the moving frame.

7. The device for producing refined sulfuric acid using a smelting flue gas acid-making system according to claim 3, characterized in that: Two sets of movable wheels are symmetrically mounted on the side walls of the movable frame, and the movable wheels are slidably connected to the tracks.

8. The refined sulfuric acid production device of the smelting flue gas acid-making system according to claim 3, characterized in that: A plurality of jet racks are installed at the bottom end of the movable rack, and the jet racks are connected to the movable rack.

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