CN115583633A - Absorption tower for conversion unit of waste sulfuric acid device - Google Patents
Absorption tower for conversion unit of waste sulfuric acid device Download PDFInfo
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- CN115583633A CN115583633A CN202210822433.XA CN202210822433A CN115583633A CN 115583633 A CN115583633 A CN 115583633A CN 202210822433 A CN202210822433 A CN 202210822433A CN 115583633 A CN115583633 A CN 115583633A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/92—Recovery from acid tar or the like, e.g. alkylation acids
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
- C01B17/80—Apparatus
- C01B17/806—Absorbers; Heat exchangers
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- Treating Waste Gases (AREA)
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Abstract
The invention relates to the technical field of chemical industry, in particular to an absorption tower for a waste sulfuric acid device conversion unit, which comprises an absorption tank assembly, wherein an acid liquor circulation assembly is arranged below the absorption tank assembly; the liquid separation boxes are arranged above the acid liquor circulation assembly, liquid inlet pipes are arranged on the outer walls of the liquid separation boxes, and a heating assembly and a driving assembly are arranged inside the liquid separation boxes; the liquid suction assembly is arranged inside the liquid distribution box; wherein, the imbibition subassembly includes the drain frame, and the outside of drain frame is the annular, and the inboard of drain frame is provided with a plurality of built-in catheter that transversely set up, the SO after the invention is cracked to waste acid 3 When the absorption is carried out, the dehumidification can be carried out, the content of water in the flue gas is reduced, and meanwhile, the invention can carry out SO treatment 3 The concentrated sulfuric acid after absorption is recycled and mixed, the concentration after recycling can be controlled again, and the SO of the equipment is improved 3 The absorption effect of (2) and the efficiency of flue gas recovery can be improved.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to an absorption tower for a conversion unit of a waste sulfuric acid device.
Background
The sulfuric acid device is an environment-friendly production device for producing industrial concentrated sulfuric acid by using alkylated waste sulfuric acid as a raw material and adopting the technological processes of pickling purification and a two-rotation two-absorption contact method. The plant was designed to handle 40000 tons/year of spent sulfuric acid produced by the alkylation unit.
(1) When the existing sulfuric acid is converted in the conversion unit, two times of conversion work is needed, and then SO is carried out through two absorption towers 3 The absorption is carried out, and in the absorption process, because the mixed gas needs to be led out for many times and converted for many times, water vapor is easily mixed into the gas, and the water vapor enters the absorption tower along with the flue gas, SO that the SO (sulfur dioxide) content of the absorption tower is reduced 3 The absorption effect of (1).
(2) In the using process of the existing absorption tower, SO is repeatedly treated by concentrated sulfuric acid with the concentration of 98% 3 Carrying out absorption work on concentrated sulfuric acid with the concentration of 98 percent and SO 3 Can produce the higher oleum of reaction formation concentration, oleum can increase the concentration of sulphuric acid, can mix with the concentrated sulfuric acid that concentration is slightly low when retrieving oleum simultaneously, and the concentrated sulfuric acid concentration after mixing is not controlled well like this, reduces SO to 3 And (4) absorption effect.
Disclosure of Invention
The invention aims to provide an absorption tower for a conversion unit of a waste sulfuric acid device, so as to solve the problems in the background technology.
The technical scheme of the invention is as follows: an absorption tower for a conversion unit of a waste sulfuric acid device comprises an absorption box assembly, wherein an acid liquor circulation assembly is arranged below the absorption box assembly;
the liquid separation boxes are arranged above the acid liquor circulation assembly, liquid inlet pipes are arranged on the outer walls of the liquid separation boxes, and a heating assembly and a driving assembly are arranged inside the liquid separation boxes;
the liquid suction assembly is arranged inside the liquid separation box;
the liquid suction assembly comprises a liquid guide frame, the outer portion of the liquid guide frame is annular, a plurality of built-in liquid guide pipes are transversely arranged on the inner side of the liquid guide frame, through holes are formed in the lower portion of the built-in liquid guide pipes, driving pipes II are rotatably arranged in the through holes of the lower portion of the built-in liquid guide pipes, sleeves are sleeved on the driving pipes II, sleeve fixing sleeves are fixed to one ends of the sleeves, the sleeve fixing sleeves are slidably arranged on the outer portions of the driving pipes II, the inner portions of the driving pipes II are hollow, liquid inlet holes are formed in the outer walls of the driving pipes II, the liquid guide assembly is arranged inside the built-in liquid guide pipes, a cavity is formed in the inner portions of the liquid guide frame, one ends of the built-in liquid guide pipes are communicated with the inner portion of the liquid guide frame, a heat exchange pipe assembly is connected to the outer walls of the liquid guide frame through pipelines, and the other ends of the heat exchange pipe assembly are connected with the absorption box assembly.
Preferably, the absorption box assembly comprises an air outlet box, an absorption box II, a drying box II, an absorption box I and a drying box I, the air outlet box, the absorption box II, the drying box II, the absorption box I and the drying box I are sequentially distributed from top to bottom, spraying plates are arranged inside the air outlet box, the absorption box II, the drying box II, the absorption box I and the drying box I, air inlet pipes II, air outlet pipes and air inlet pipes I are respectively arranged on the outer walls of the drying box II, the absorption box I and the drying box I, one ends of the air inlet pipes II and the air inlet pipes I are respectively connected with an air distribution plate, short pipes which are vertically arranged are uniformly distributed below the air distribution plate, built-in liquid storage boxes are arranged inside the absorption box II, the drying box I and the drying box I, a bent connecting pipe III is arranged inside the built-in liquid storage boxes inside the absorption box II and the absorption box I, one end of the connecting pipe III penetrates through the bottom of the built-in liquid storage boxes, and the bent other end of the connecting pipe III is not contacted with the inner wall of the built-in liquid storage boxes.
Preferably, a through hole is formed in the bottom of the built-in liquid storage box, a driving tube III is arranged in the through hole of the built-in liquid storage box, a plurality of sealing seats are sleeved outside the driving tube III, sealing rings matched with the driving tube III in three phases are arranged on the inner sides of the sealing seats, a through hole is formed in the outer wall of the driving tube III, the through hole in the outer wall of the driving tube III is located in the sealing seats, a reverse frustum-shaped built-in liquid blocking sleeve is arranged on the inner side of the driving tube III, the length of the built-in liquid blocking sleeve is larger than that of the outer wall of the driving tube III, two ends of the built-in liquid blocking sleeve are tubular, the lower end of the driving tube III is bent, an air cylinder is connected to the bent part of the driving tube III, and an anti-corrosion box body is sleeved outside the air cylinder.
Preferably, the acid liquor circulation assembly comprises an acid liquor circulation box I and an acid liquor circulation box II, the acid liquor circulation box I and the acid liquor circulation box II are respectively arranged below the drying box I and the liquid separating box, a liquid guide pump I is arranged below the acid liquor circulation box I, the output end of the liquid guide pump I is connected with the lower portion of the acid liquor circulation box II, a liquid guide pump II is further arranged below the acid liquor circulation box II, the output end of the liquid guide pump II is connected with a connecting pipe II, the other end of the connecting pipe II is rotatably connected with a driving pipe I, the other end of the driving pipe I is rotatably provided with a rotating seat, and one end of the rotating seat is connected with the connecting pipe I.
Preferably, the outside of one end of the first driving pipe is connected with a motor through a gear set, a linkage assembly is arranged outside the first driving pipe, the first driving pipe penetrates through all the liquid distribution boxes, an eccentric block is arranged outside the first driving pipe, and the position of the eccentric block corresponds to that of the built-in liquid guide pipe.
Preferably, the drainage component comprises an ejector block, the ejector block is arranged at one end of the built-in liquid guide tube in a penetrating mode, a spring is sleeved outside the ejector block, one end of the spring is fixed to the inner wall of the built-in liquid guide tube, one end, far away from the spring, of one end of the ejector block is connected with a pushing frame, the other outer wall of the pushing frame is provided with a one-way valve plate I, one end of a second driving tube is fixed with a connecting frame, and the inner side, close to one end of the connecting frame, of the second driving tube is provided with a one-way valve plate II.
Preferably, the driving assembly comprises a first gear, one side of the first gear is provided with a circular groove with a large inside and a small outside, a suspension rod is arranged inside the first gear in a rotating mode, the other end of the suspension rod is fixed to the top of the inner side of the liquid separation box, the first gear is meshed with a second gear, a pawl assembly is arranged on the inner side of the first gear, a pawl of the pawl assembly is arranged on the inner side of the first gear, a connecting rod is fixed to the lower end of the second gear, the other end of the connecting rod is fixedly connected with the outer wall of the connecting frame, a fixing frame is arranged outside the connecting rod in a rotating mode, and one end of the fixing frame is fixed to the inner side of the liquid guide outer frame.
Preferably, the heat exchange tube assembly comprises a heat exchange tube main body, a flow channel and a heat exchange cavity are formed inside the heat exchange tube main body, two ends of the flow channel are communicated with the inner cavity of the liquid guide outer frame and the spray plate respectively, the heat exchange cavity is distributed inside the heat exchange tube main body in a spiral shape, two heat exchange liquid inlet tubes are arranged below the heat exchange tube main body, and two heat exchange liquid inlet tubes are connected with two ends of the heat exchange cavity.
Preferably, a through hole communicated with the inside of the second absorption box is formed in the lower portion of the gas outlet box, the lower portion of the second absorption box is communicated with the inside of the second drying box, and the lower portion of the first absorption box is communicated with the inside of the first drying box.
Preferably, the outer wall of the first driving pipe is provided with a through hole, the outer wall of the through hole of the first driving pipe is provided with a fixed sleeve, the fixed sleeve is provided with two liquid outlet pipes, the outer wall of each liquid outlet pipe is provided with a through hole, and one end of each liquid outlet pipe is communicated with the inner part of the through hole of the outer wall of the first driving pipe.
The invention provides an absorption tower for a conversion unit of a waste sulfuric acid device through improvement, and compared with the prior art, the absorption tower has the following improvement and advantages:
one is as follows: SO obtained after cracking of waste acid 3 When the absorption is carried out, the dehumidification can be carried out, the content of water in the flue gas is reduced, and meanwhile, the invention can carry out SO treatment 3 The concentrated sulfuric acid after absorption is recycled and mixed, the concentration after recycling can be controlled again, and the SO of the equipment is improved 3 The absorption effect of the flue gas recovery device can improve the efficiency of flue gas recovery;
the second step is as follows: the absorption box assembly is provided with a first absorption box and a second absorption box, concentrated sulfuric acid can be introduced into the first absorption box and the second absorption box, and SO in flue gas is treated by the concentrated sulfuric acid 3 The sulfuric acid is absorbed and converted into fuming sulfuric acid with higher concentration, the fuming sulfuric acid can be recycled into the acid liquor circulation box I, all sulfuric acid is collected through the acid liquor circulation box, the concentration control work of the recycled sulfuric acid is facilitated, and the recycling efficiency of concentrated sulfuric acid is improved;
and thirdly: the liquid separation boxes are provided with five liquid separation boxes, and the five liquid separation boxes can be connected with the gas outlet box, the absorption box II, the drying box II, the absorption box I and the drying box I, so that concentrated sulfuric acid with different concentrations can be independently led into the gas outlet box, the absorption box II, the drying box II, the absorption box I and the drying box I, and the drying and absorption efficiency of the concentrated sulfuric acid on flue gas is improved;
fourthly, the method comprises the following steps: the liquid suction component of the invention is used for guiding liquid, and can guide concentrated sulfuric acid in the liquid separation box into the heat exchange tube component to conduct the guide work of the concentrated sulfuric acid, wherein, the first driving tube can drive the connecting frame and the second driving tube to rotate through the first driving tube, so that the second driving tube can drive the sleeve fixing sleeve to move up and down, the sleeve fixing sleeve can drive the sleeve to conduct the expansion or contraction work, the quantity of the exposed liquid inlet holes is controlled through the expanded or contracted sleeve, so that the liquid guide speed of the liquid suction component can be controlled, and when the driving tube drives the liquid suction component to operate, the first driving tube can drive the liquid outlet tube to rotate at the same time, the first driving tube drives the liquid outlet tube to rotate when rotating forwards, the first driving tube can not brake the pawl part of the pawl component, so that the second driving tube can not drive the second driving tube to rotate, the length of the sleeve outside the driving tube II cannot be changed, the drain pipe is driven to rotate reversely when the driving tube I rotates reversely, the driving tube brakes the pawl position of the pawl component for a while, so the pawl component can drive the driving tube II to rotate, the driving tube II rotates, the length of the sleeve outside the driving tube II is changed, the number of the liquid inlet holes can be controlled, the drain pipe rotates reversely at the same time, the stirring can be carried out, the stirring effect cannot be influenced, the mixing efficiency of the concentrated sulfuric acid is improved, the concentrated sulfuric acid is prevented from entering the heat exchange tube component without being uniformly mixed, meanwhile, the heating component is arranged inside the liquid separation box, the concentrated sulfuric acid inside the liquid separation box is heated through the heating component, the concentration of the concentrated sulfuric acid inside the liquid separation box is improved, the liquid inlet pipe on the outer wall of the liquid separation box plays a role of leading in the concentrated sulfuric acid with lower concentration, and convenience is brought to users for reducing the concentration inside the liquid separation box, the control is convenient for the user;
and fifthly: the device is provided with a third driving pipe capable of moving up and down, the through hole in the outer wall of the third driving pipe is sealed by the sealing seat, when the through hole in the outer wall of the third driving pipe is moved out of the sealing seat, concentrated sulfuric acid in the gas outlet box, the second absorption box, the second drying box, the first absorption box and the first drying box can be led into the first acid liquor circulation box, meanwhile, a built-in liquid blocking sleeve is arranged on the inner side of the through hole of the third driving pipe, the inner side of the through hole of the third driving pipe is blocked by the built-in liquid blocking sleeve, the concentrated sulfuric acid in the third driving pipe is prevented from flowing out of the through hole in the outer wall of the third driving pipe, and the liquid guiding efficiency is improved.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2 of the present invention;
FIG. 5 is a schematic view of the internal structure of the liquid-separating box of the present invention;
FIG. 6 is a schematic view of the heat exchange tube assembly of the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 5B in accordance with the present invention;
FIG. 8 is an enlarged view of the structure of FIG. 5 at C in accordance with the present invention;
FIG. 9 is an enlarged view of FIG. 5 at D in accordance with the present invention;
FIG. 10 is a top plan view of the push frame of the present invention;
fig. 11 is a top view of the drive assembly of the present invention.
Description of reference numerals: 1. an air outlet box; 2. a second absorption box; 3. a second air inlet pipe; 4. a second drying box; 5. an air outlet pipe; 6. a first absorption box; 7. a first air inlet pipe; 8. a first drying box; 9. an acid liquor circulation box I; 10. a liquid guide pump I; 11. a liquid separation box; 12. an acid liquor circulating box II; 13. a heat exchange tube assembly; 1301. a heat exchange tube main body; 1302. a flow channel; 1303. a heat exchange cavity; 1304. a heat exchange liquid inlet pipe; 14. a spray plate; 15. a gas distribution plate; 16. a first connecting pipe; 17. rotating the base; 18. a motor; 19. a first driving pipe; 20. a wicking assembly; 21. a second liquid guide pump; 22. a second connecting pipe; 23. a drive assembly; 24. a liquid guiding outer frame; 25. a catheter is arranged inside; 26. a sleeve; 27. a second driving pipe; 28. an eccentric block; 29. a connecting rod; 30. a second gear; 31. a fixed mount; 32. a top block; 33. pushing the frame; 34. a one-way valve plate I; 35. sleeve fixing sleeves; 36. a liquid inlet hole; 37. a liquid outlet pipe; 38. fixing a sleeve; 39. a liquid inlet pipe; 40. a third connecting pipe; 41. a driving pipe III; 42. a sealing seat; 43. a liquid blocking sleeve is arranged inside; 44. a liquid storage box is arranged in the container; 45. a cylinder; 46. a spring; 47. a connecting frame; 48. a one-way valve plate II; 49. a pawl assembly; 50. a first gear; 51. a suspension rod; 52. and a heating assembly.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an absorption tower for a conversion unit of a waste sulfuric acid device by improvement, which comprises an absorption tank assembly, wherein an acid liquor circulating assembly is arranged below the absorption tank assembly, as shown in figures 1-11;
the liquid separation boxes 11 are arranged above the acid liquor circulation assembly, the outer walls of the liquid separation boxes 11 are provided with liquid inlet pipes 39, and the heating assembly 52 and the driving assembly 23 are arranged inside the liquid separation boxes 11;
a liquid suction assembly 20, the liquid suction assembly 20 being disposed inside the liquid distribution box 11;
wherein, imbibition subassembly 20 includes drain frame 24, and the outside of drain frame 24 is the annular, and the inboard of drain frame 24 is provided with the horizontal built-in catheter 25 that sets up of a plurality of, the through-hole has been seted up to the below of built-in catheter 25, and the downthehole rotation of the below of built-in catheter 25 is provided with drive tube two 27, the outside cover of drive tube two 27 is equipped with sleeve pipe 26, and the one end of sleeve pipe 26 is fixed with sleeve pipe fixed cover 35, sleeve pipe fixed cover 35 slides and sets up in the outside of drive tube two 27, the inside of drive tube two 27 is the cavity form, and the feed liquor hole 36 has been seted up to the outer wall of drive tube two 27, the inside liquid guide subassembly that is provided with of built-in catheter 25, the cavity has been seted up to the inside of drain frame 24, the one end of built-in catheter 25 is linked together with the inside of drain frame 24, and the outer wall of drain frame 24 has heat exchange tube assembly 13 through the pipe connection, the heat exchange tube assembly 13 other end is connected with the absorption tank subassembly.
The absorption box subassembly is used for guiding the effect of flue gas, make the flue gas can carry out the work that the flue gas dehumidified and absorbed the conversion through the absorption box subassembly, and imbibition subassembly 20 is used for leading-in concentrated sulfuric acid's effect, to divide the corresponding concentrated sulfuric acid of 11 inside concentrations of liquid box to lead to the absorption box subassembly in, heat exchange tube subassembly 13 can heat or the effect of cooling to sulphuric acid, in the concentrated sulfuric acid that makes suitable temperature enters into the absorption box subassembly, improve the drying of concentrated sulfuric acid, absorptive effect.
Preferably, the absorption box assembly comprises an air outlet box 1, an absorption box two 2, a drying box two 4, an absorption box one 6 and a drying box one 8, the air outlet box 1, the absorption box two 2, the drying box two 4, the absorption box one 6 and the drying box one 8 are sequentially distributed from top to bottom, the air outlet box 1, the absorption box two 2, the drying box two 4, the absorption box one 6 and the drying box one 8 are internally provided with a spray plate 14, the outer walls of the drying box two 4, the absorption box one 6 and the drying box one 8 are respectively provided with an air inlet pipe two 3, an air outlet pipe 5 and an air inlet pipe one 7, one ends of the air inlet pipe two 3 and the air inlet pipe one 7 are respectively connected with an air distribution plate 15, short pipes which are vertically arranged are uniformly distributed below the air distribution plate 15, the internal liquid storage boxes 44 are respectively arranged inside the absorption box two 2, the drying box two 4, the absorption box one 6 and the drying box one 8, wherein the internal liquid storage boxes 44 are respectively provided with a bent connecting pipe three connecting pipes 40, one end of the connecting pipes penetrate through the bottom of the internal liquid storage boxes 40, and the other end of the connecting pipes is not contacted with the internal liquid storage boxes 44.
Preferably, a through hole is formed in the bottom of the built-in liquid storage tank 44, a driving tube III 41 is arranged in the through hole of the built-in liquid storage tank 44, a plurality of sealing seats 42 are sleeved outside the driving tube III 41, sealing rings matched with the driving tube III 41 are arranged on the inner sides of the sealing seats 42, a through hole is formed in the outer wall of the driving tube III 41, the through hole in the outer wall of the driving tube III 41 is located in the sealing seat 42, a built-in liquid blocking sleeve 43 in an inverted frustum shape is arranged on the inner side of the driving tube III 41, the length of the built-in liquid blocking sleeve 43 is larger than that outside the through hole in the outer wall of the driving tube III 41, the two ends of the built-in liquid blocking sleeve 43 are tubular, the lower end of the driving tube III 41 is bent, an air cylinder 45 is connected to the bent part of the driving tube III 41, and an anti-corrosion box body is sleeved outside the air cylinder 45.
The through hole in the bottom of the built-in liquid storage box 44 plays a role in accommodating the driving tube three 41, the air cylinder 45 is used for driving the driving tube three 41 to move up and down, when the driving tube three 41 moves up, the through hole on the outer wall of the driving tube three 41 can be moved out from the sealing seat 42, then the redundant concentrated sulfuric acid in the built-in liquid storage box 44 can enter the driving tube three 41, the built-in liquid blocking sleeve 43 is arranged in the driving tube three 41, the built-in liquid blocking sleeve 43 can block the inner side of the through hole of the driving tube three 41, so that the concentrated sulfuric acid in the driving tube three 41 can be prevented from entering the built-in liquid storage box 44 which is positioned under the bottom, and the liquid guiding effect is improved.
Preferably, the acid liquor circulation assembly comprises a first acid liquor circulation box 9 and a second acid liquor circulation box 12, the first acid liquor circulation box 9 and the second acid liquor circulation box 12 are respectively arranged below the first drying box 8 and the second liquid distribution box 11, a first liquid guide pump 10 is arranged below the first acid liquor circulation box 9, the output end of the first liquid guide pump 10 is connected with the lower portion of the second acid liquor circulation box 12, a second liquid guide pump 21 is further arranged below the second acid liquor circulation box 12, the output end of the second liquid guide pump 21 is connected with a second connecting pipe 22, the other end of the second connecting pipe 22 is rotatably connected with a first driving pipe 19, the other end of the first driving pipe 19 is rotatably provided with a rotating seat 17, and one end of the rotating seat 17 is connected with a first connecting pipe 16.
The first acid liquor circulation box 9 and the second acid liquor circulation box 12 are used for recovering concentrated sulfuric acid, meanwhile, the concentrated sulfuric acid can enter the liquid separation box 11 again, the recovery efficiency of the concentrated sulfuric acid is improved, the first driving pipe 19 is connected with the first connecting pipe 16 through the rotating seat 17, the first connecting pipe 16 cannot be influenced by the first driving pipe 19 in the rotating process, and the concentrated sulfuric acid can be conveyed.
Preferably, the motor 18 is connected to the outside of one end of the first driving pipe 19 through a gear set, the linkage assembly is arranged outside the first driving pipe 19, the first driving pipe 19 penetrates all the liquid distribution boxes 11, the eccentric block 28 is arranged outside the first driving pipe 19, and the position of the eccentric block 28 corresponds to the position of the built-in liquid guide pipe 25.
The motor 18 is used for driving the first driving pipe 19 to rotate, so that the first driving pipe 19 can rotate, the first driving pipe 19 can extrude the top block 32 extending out of one end of the built-in liquid guide pipe 25 through the eccentric block 28, and the effect of controlling the top block 32 is achieved, so that the liquid guide assembly can normally work to convey concentrated sulfuric acid.
Preferably, the liquid guiding assembly comprises an ejecting block 32, the ejecting block 32 penetrates through one end of the built-in liquid guiding pipe 25, a spring 46 is sleeved outside the ejecting block 32, one end of the spring 46 is fixed on the inner wall of the built-in liquid guiding pipe 25, one end, far away from the spring 46, of one end of the ejecting block 32 is connected with a pushing frame 33, the other outer wall of the pushing frame 33 is provided with a one-way valve plate I34, one end of a driving pipe II 27 is fixed with a connecting frame 47, and a one-way valve plate II 48 is arranged on the inner side of one end, close to the connecting frame 47, of the driving pipe II 27.
The top block 32 is extruded by the eccentric block 28, meanwhile, the spring 46 is stretched by the top block 32, and then when the eccentric block 28 moves away from the top block 32, the stretched spring 46 can drive the top block 32 to return to the original position, so that the top block 32 and the push frame 33 move back and forth, then the one-way valve plate I34 at one end of the push frame 33 and the one-way valve plate II 48 at one end of the driving pipe II 27 form a one-way valve structure, so that the driving pipe II 27 forms suction force, the concentrated sulfuric acid in the liquid separation box 11 is absorbed, the concentrated sulfuric acid in the liquid separation box 11 can enter the built-in liquid guide pipe 25 through the driving pipe II 27, and then the concentrated sulfuric acid in the built-in liquid guide pipe 25 can enter the flow channel 1302 through the liquid guide outer frame 24 to carry out the concentrated sulfuric acid conveying work.
Preferably, the driving assembly 23 includes a first gear 50, one side of the first gear 50 is provided with an annular groove with a large inside and a small outside, a suspension rod 51 is rotatably arranged inside the first gear 50, the other end of the suspension rod 51 is fixed at the top of the inside of the liquid separation tank 11, a second gear 30 is engaged with the first gear 50, a pawl assembly 49 is arranged inside the first gear 50, a pawl of the pawl assembly 49 is arranged inside the first gear 50, a connecting rod 29 is fixed at the lower end of the second gear 30, the other end of the connecting rod 29 is fixedly connected with the outer wall of the connecting frame 47, a fixing frame 31 is rotatably arranged outside the connecting rod 29, and one end of the fixing frame 31 is fixed inside the liquid guide outer frame 24.
Drive tube 19 can drive gear 50 and gear two 30 through pawl subassembly 49 and rotate when forward pivoted, then gear two 30 drive tube two 27 through connecting rod 29 and link 47 and rotate, drive tube two 27 is at the pivoted, the spout has been seted up to drive tube two 27 outsides, the outside spout of drive tube two 27 can cooperate with the fixed cover 35 of sleeve pipe, the fixed cover 35 of sleeve pipe slides in the effect of spout, the fixed cover 35 of sleeve pipe can compress or expand sleeve pipe 26, make the feed liquor hole 36 of two 27 outer walls of drive tube expose suitable quantity, can control the volume that drive tube two 27 absorbed concentrated sulfuric acid like this, the delivery capacity to concentrated sulfuric acid is controlled.
Preferably, the heat exchange tube assembly 13 includes a heat exchange tube main body 1301 internally provided with a flow channel 1302 and a heat exchange cavity 1303, two ends of the flow channel 1302 are respectively communicated with the inner cavity of the liquid guiding outer frame 24 and the spray plate 14, the heat exchange cavity 1303 is spirally distributed inside the heat exchange tube main body 1301, two heat exchange liquid inlet pipes 1304 are arranged below the heat exchange tube main body 1301, and the two heat exchange liquid inlet pipes 1304 are connected with two ends of the heat exchange cavity 1303.
The heat exchange liquid inlet pipe 1304 guides the heat exchange liquid into the heat exchange cavity 1303, and then the concentrated sulfuric acid passing through the flow channel 1302 is heated or cooled through the heat exchange cavity 1303, so that the concentrated sulfuric acid with proper temperature enters the gas outlet box 1, the absorption box II 2, the drying box II 4, the absorption box I6 or the drying box I8 to be dried or absorbed.
Preferably, a through hole communicated with the inside of the second absorption box 2 is formed in the lower part of the gas outlet box 1, the lower part of the second absorption box 2 is communicated with the inside of the second drying box 4, and the lower part of the first absorption box 6 is communicated with the inside of the first drying box 8.
Preferably, the outer wall of the first driving pipe 19 is provided with a through hole, the outer wall of the through hole of the first driving pipe 19 is provided with a fixing sleeve 38, the fixing sleeve 38 is provided with two liquid outlet pipes 37, the outer wall of each liquid outlet pipe 37 is provided with a through hole, and one end of each liquid outlet pipe 37 is communicated with the inside of the through hole of the outer wall of the first driving pipe 19.
Leading-in pump 10 can be with concentrated sulfuric acid leading-in to drive tube 19 in, the inside concentrated sulfuric acid of drive tube 19 can enter into drain pipe 37 like this, then the inside concentrated sulfuric acid of drain pipe 37 can enter into branch liquid box 11, supply concentrated sulfuric acid to branch liquid box 11, the connection position of drain pipe 37 and drive tube 19 can set up the valve and control simultaneously, come control to enter into the volume of the inside concentrated sulfuric acid of branch liquid box 11 with this, drive tube 19 can drive drain pipe 37 and rotate when the pivoted, divide the inside concentrated sulfuric acid of liquid box 11 to stir through drain pipe 37, improve the mixing efficiency of concentrated sulfuric acid, heating element 52 is used for the heated drying of the inside concentrated sulfuric acid of branch liquid box 11 simultaneously, evaporate the water in the concentrated sulfuric acid, improve the concentration of the inside concentrated sulfuric acid of branch liquid box 11, the steam that evaporates simultaneously and can be derived through feed liquor pipe 39, feed liquor pipe 39 can connect aspiration pump and sulfuric acid delivery pump (not shown in the picture), simultaneously feed liquor pipe 39 can carry the low sulfuric acid of concentration to branch liquid box 11 through sulfuric acid delivery pump, reduce the inside concentration of branch liquid box 11.
The working principle is as follows: firstly, the flue gas which needs to be converted for the first time is guided into a first drying box 8 through a first air inlet pipe 7 and a gas distribution plate 15 connected with the first air inlet pipe, the flue gas is sprayed through a first 8 internal spraying plate 14 of the drying box, the dehumidification is carried out, then the gas enters an first absorption box 6 through a third 40 connecting pipe above the first 8 drying box, concentrated sulfuric acid with the concentration of 98% is sprayed out through a first 6 internal spraying plate 14 of the absorption box, and SO in the flue gas is treated 3 Absorbing, and then leading out the flue gas through an outlet pipe 5 for a second timeThe flue gas after the second conversion enters a second drying box 4 through a second air inlet pipe 3, is dried through sulfuric acid sprayed out of a spray plate 14 in the second drying box 4, and then is subjected to SO through concentrated sulfuric acid sprayed out of the spray plate 14 in a second absorption box 2 3 The flue gas finally evolved enters the gas outlet box 1, and SO is carried out through the spraying plate 14 in the gas outlet box 1 3 The absorption work of (1), the flue gas is led out through the pipeline above the gas outlet box 1, when concentrated sulfuric acid is required to be led in, the motor 18 is started, the motor 18 can drive the first driving pipe 19 to rotate in the forward direction, then the first driving pipe 19 drives the connecting frame 47 and the second driving pipe 27 to rotate together through the pawl component 49 and the driving component 23, then the second driving pipe 27 can drive the sleeve fixing sleeve 35 to move up and down, the sleeve 26 is unfolded or contracted through the sleeve fixing sleeve 35, then the liquid inlet holes 36 on the outer wall of the second driving pipe 27 are exposed in proper quantity, then the motor 18 is started in the reverse direction, the motor 18 can drive the first driving pipe 19 to rotate in the reverse direction, then the first driving pipe 19 can extrude the liquid guide component through the eccentric block 28, the top block 32 in the liquid guide component can stretch the spring 46 when being extruded by the eccentric block 28, and then the top block 32 can push the pushing frame 33 to move, when the top block 32 is not extruded, the compressed spring 46 pulls the top block 32 in the opposite direction, the one-way valve plate 34 moves in a reciprocating manner, the one-way valve plate 34 and the one-way valve plate 48 cooperate with each other to form a pump effect when moving in a reciprocating manner, then the driving pipe 27 generates suction force to guide concentrated sulfuric acid into the liquid guide outer frame 24, then the liquid guide outer frame 24 guides the concentrated sulfuric acid into the flow channel 1302, heat exchange is performed through heat exchange liquid in the heat exchange cavity 1303, the concentrated sulfuric acid with proper temperature enters the spray plate 14, the concentrated sulfuric acid is sprayed out through the spray plate 14 to perform dehumidification or absorption conversion, when the concentrated sulfuric acid needs to be recovered, the driving pipe III 41 is controlled to move upwards through the air cylinder 45, and when the through hole on the outer wall of the driving pipe III 41 is moved out of the sealing seat 42, the air outlet box 1, the absorption box II 2 and the air outlet box, concentrated sulfuric acid in the second drying box 4, the first absorption box 6 and the first drying box 8 is led into the first acid liquor circulation box 9, a built-in liquid blocking sleeve 43 is arranged on the inner side of a through hole of the third driving pipe 41, and the concentrated sulfuric acid passes through the built-in liquid blocking sleeveThe liquid sleeve 43 shields the inner side of the through hole of the driving tube III 41, so that concentrated sulfuric acid in the driving tube III 41 is prevented from flowing out of the through hole of the outer wall of the driving tube III 41, and the liquid guiding efficiency is improved.
Claims (10)
1. An absorption tower that useless sulphuric acid device conversion unit used characterized in that: the acid liquor circulation device comprises an absorption box assembly, wherein an acid liquor circulation assembly is arranged below the absorption box assembly;
the acid liquor circulation device comprises a plurality of liquid separation boxes (11), wherein the liquid separation boxes (11) are arranged above an acid liquor circulation assembly, a liquid inlet pipe (39) is arranged on the outer wall of each liquid separation box (11), and a heating assembly (52) and a driving assembly (23) are arranged inside each liquid separation box (11);
a wicking assembly (20), the wicking assembly (20) disposed inside the liquid distribution box (11);
wherein, imbibition subassembly (20) is including drain frame (24), and the outside of drain frame (24) is the annular, and the inboard of drain frame (24) is provided with built-in catheter (25) that the horizontal setting of a plurality of, and the through-hole has been seted up to the below of built-in catheter (25), and the below through-hole internal rotation of built-in catheter (25) is provided with drive tube two (27), and the outside cover of drive tube two (27) is equipped with sleeve pipe (26), and the one end of sleeve pipe (26) is fixed with the fixed cover of sleeve pipe (35), the fixed cover of sleeve pipe (35) slides and sets up in the outside of drive tube two (27), the inside of drive tube two (27) is the cavity form, and the outer wall of drive tube two (27) has seted up feed liquor hole (36), the inside liquid guide subassembly that is provided with of built-in catheter (25), the inside cavity has been seted up of liquid guide frame (24), and the one end of built-in catheter (25) is linked together with drain frame (24) inside, and the outer wall of liquid guide frame (24) has heat exchange tube assembly (13) through the pipe connection, the other end of absorption case subassembly is connected.
2. The absorption tower for the conversion unit of a spent sulfuric acid plant according to claim 1, wherein: the absorption box assembly comprises an air outlet box (1), an absorption box II (2), a drying box II (4), an absorption box I (6) and a drying box I (8), wherein the air outlet box (1), the absorption box II (2), the drying box II (4), the absorption box I (6) and the drying box I (8) are sequentially distributed from top to bottom, spray plates (14) are respectively arranged inside the air outlet box (1), the absorption box II (2), the drying box II (4), the absorption box I (6) and the drying box I (8), short pipes which are vertically arranged are uniformly distributed below the drying box II (4), the absorption box I (6) and the drying box I (8) and are respectively provided with an air inlet pipe II (3), an air outlet pipe (5) and an air inlet pipe I (7), one ends of the air inlet pipe II (3) and the air inlet pipe I (7) are respectively connected with a gas distribution plate (15), short pipes which are vertically arranged are uniformly distributed below the air distribution plate (15), connecting pipes which are arranged inside the absorption box II (2), the drying box II (4), the absorption box I (6) and the drying box I (8) are respectively provided with a built-in-box, and are provided with a connecting pipe (44), and a connecting pipe which is arranged inside which is used for storing liquid in the liquid storage box I (40) and a connecting pipe (40) passes through the three-storing tank (40), and the bent other end of the third connecting pipe (40) is not in contact with the inner wall of the built-in liquid storage box (44).
3. The absorption tower for the conversion unit of the spent sulfuric acid plant according to claim 2, wherein: the bottom of the built-in liquid storage box (44) is provided with a through hole, a driving tube III (41) is arranged in the through hole of the built-in liquid storage box (44), the outer portion of the driving tube III (41) is sleeved with a plurality of sealing seats (42), sealing rings matched with the driving tube III (41) are arranged on the inner sides of the sealing seats (42), the outer wall of the driving tube III (41) is provided with the through hole, the through hole in the outer wall of the driving tube III (41) is located in the sealing seats (42), a built-in liquid blocking sleeve (43) in an inverted-prism shape is arranged on the inner side of the driving tube III (41), the length of the built-in liquid blocking sleeve (43) is larger than the length of the outer portion of the through hole in the outer wall of the driving tube III (41), the two ends of the built-in liquid blocking sleeve (43) are tubular, the lower end of the driving tube III (41) is bent, a bent portion of the driving tube III (41) is connected with an air cylinder (45), and an anti-corrosion box body is sleeved on the outer portion of the air cylinder (45).
4. The absorption tower for the conversion unit of a spent sulfuric acid plant according to claim 1, wherein: the acid liquor circulation assembly comprises a first acid liquor circulation box (9) and a second acid liquor circulation box (12), wherein the first acid liquor circulation box (9) and the second acid liquor circulation box (12) are respectively arranged below a first drying box (8) and a second liquid distribution box (11), a first liquid guide pump (10) is arranged below the first acid liquor circulation box (9), the output end of the first liquid guide pump (10) is connected with the lower portion of the second acid liquor circulation box (12), a second liquid guide pump (21) is further arranged below the second acid liquor circulation box (12), the output end of the second liquid guide pump (21) is connected with a second connecting pipe (22), the other end of the second connecting pipe (22) is rotatably connected with a first driving pipe (19), the other end of the first driving pipe (19) is rotatably provided with a rotating seat (17), and one end of the rotating seat (17) is connected with a first connecting pipe (16).
5. The absorption tower for the conversion unit of a spent sulfuric acid plant according to claim 4, wherein: the outer portion of one end of the first driving pipe (19) is connected with a motor (18) through a gear set, a linkage assembly is arranged on the outer portion of the first driving pipe (19), the first driving pipe (19) penetrates through all the liquid distribution boxes (11), an eccentric block (28) is arranged on the outer portion of the first driving pipe (19), and the position of the eccentric block (28) corresponds to that of the built-in liquid guide pipe (25).
6. The absorption tower for the conversion unit of a spent sulfuric acid plant according to claim 5, wherein: the drain subassembly includes kicking block (32), and kicking block (32) wear to establish built-in catheter (25) one end, the outside cover of kicking block (32) is equipped with spring (46), and the inner wall at built-in catheter (25) is fixed to the one end of spring (46), and the one end that spring (46) were kept away from to the one end of kicking block (32) is connected with and pushes away frame (33), and pushes away another outer wall of frame (33) and be provided with one-way valve piece (34), the one end of driving tube two (27) is fixed with link (47), and driving tube two (27) are close to link (47) one end inboard and are provided with one-way valve piece two (48).
7. The absorption tower for the conversion unit of the spent sulfuric acid plant according to claim 1, wherein: the driving assembly (23) comprises a first gear (50), one side of the first gear (50) is provided with a large-inside and small-outside annular groove, a suspension rod (51) is arranged in the first gear (50) in a rotating mode, the other end of the suspension rod (51) is fixed to the top of the inner side of the liquid distribution box (11), a second gear (30) is connected to the first gear (50) in a meshing mode, a pawl assembly (49) is arranged on the inner side of the first gear (50), a pawl of the pawl assembly (49) is arranged on the inner side of the first gear (50), a connecting rod (29) is fixed to the lower end of the second gear (30), the other end of the connecting rod (29) is fixedly connected with the outer wall of a connecting frame (47), a fixing frame (31) is arranged on the outer portion of the connecting rod (29) in a rotating mode, and one end of the fixing frame (31) is fixed to the inner side of the liquid guide outer frame (24).
8. The absorption tower for the conversion unit of the spent sulfuric acid plant according to claim 1, wherein: the heat exchange tube assembly (13) comprises a heat exchange tube main body (1301) and a flow channel (1302) and a heat exchange cavity (1303) are arranged inside the heat exchange tube main body (1301), two ends of the flow channel (1302) are communicated with a liquid guide outer frame (24) inner cavity and a spraying plate (14) respectively, the heat exchange cavity (1303) is distributed inside the heat exchange tube main body (1301) in a spiral mode, two heat exchange liquid inlet tubes (1304) are arranged below the heat exchange tube main body (1301), and two ends of the heat exchange liquid inlet tubes (1304) are connected with the two ends of the heat exchange cavity (1303).
9. The absorption tower for the conversion unit of a spent sulfuric acid plant according to claim 2, characterized in that: and a through hole communicated with the inside of the second absorption box (2) is formed in the lower part of the gas outlet box (1), the lower part of the second absorption box (2) is communicated with the inside of the second drying box (4), and the lower part of the first absorption box (6) is communicated with the inside of the first drying box (8).
10. The absorption tower for the conversion unit of the spent sulfuric acid plant according to claim 5, wherein: the through-hole has been seted up to the outer wall of driving tube (19), and the through-hole outer wall of driving tube (19) is provided with fixed cover (38), fixed cover (38) be provided with two drain pipes (37), and the outer wall of drain pipe (37) has seted up the through-hole, the one end of drain pipe (37) is linked together with driving tube (19) outer wall through-hole is inside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210822433.XA CN115583633B (en) | 2022-07-12 | 2022-07-12 | Absorption tower for waste sulfuric acid device conversion unit |
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| CN202210822433.XA CN115583633B (en) | 2022-07-12 | 2022-07-12 | Absorption tower for waste sulfuric acid device conversion unit |
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| CN115583633B CN115583633B (en) | 2023-06-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886279A (en) * | 2024-01-22 | 2024-04-16 | 江苏捷创新材料有限责任公司 | Electronic grade sulfuric acid production facility |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3846942B2 (en) * | 1996-09-24 | 2006-11-15 | 三井造船株式会社 | Method and apparatus for recovering sulfuric acid from waste sulfuric acid |
| JP2011026159A (en) * | 2009-07-23 | 2011-02-10 | Sumitomo Heavy Ind Ltd | Sulfuric acid production facility |
| CN106334428A (en) * | 2015-11-29 | 2017-01-18 | 杭州跟策科技有限公司 | Flue gas treatment system |
| CN215249581U (en) * | 2021-06-28 | 2021-12-21 | 南京科达新控仪表有限公司 | Smelting flue gas acid making dry absorption device |
-
2022
- 2022-07-12 CN CN202210822433.XA patent/CN115583633B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3846942B2 (en) * | 1996-09-24 | 2006-11-15 | 三井造船株式会社 | Method and apparatus for recovering sulfuric acid from waste sulfuric acid |
| JP2011026159A (en) * | 2009-07-23 | 2011-02-10 | Sumitomo Heavy Ind Ltd | Sulfuric acid production facility |
| CN106334428A (en) * | 2015-11-29 | 2017-01-18 | 杭州跟策科技有限公司 | Flue gas treatment system |
| CN215249581U (en) * | 2021-06-28 | 2021-12-21 | 南京科达新控仪表有限公司 | Smelting flue gas acid making dry absorption device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886279A (en) * | 2024-01-22 | 2024-04-16 | 江苏捷创新材料有限责任公司 | Electronic grade sulfuric acid production facility |
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