CN220860682U - Novel flash tower for wet-process phosphoric acid production - Google Patents
Novel flash tower for wet-process phosphoric acid production Download PDFInfo
- Publication number
- CN220860682U CN220860682U CN202322144852.5U CN202322144852U CN220860682U CN 220860682 U CN220860682 U CN 220860682U CN 202322144852 U CN202322144852 U CN 202322144852U CN 220860682 U CN220860682 U CN 220860682U
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- Prior art keywords
- pipe
- phosphoric acid
- fixedly connected
- flash column
- communicated
- Prior art date
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000012188 paraffin wax Substances 0.000 claims description 21
- 239000002699 waste material Substances 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 description 15
- 230000008020 evaporation Effects 0.000 description 13
- 239000007789 gas Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000002367 phosphate rock Substances 0.000 description 3
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000004520 agglutination Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to the field of novel flash towers, and discloses a novel flash tower for wet phosphoric acid production, which comprises a flash tower body, wherein one side of the flash tower body is communicated with a feed pipe, a heating box is sleeved on the feed pipe and connected with the feed pipe for use, one side of the heating box is provided with a throttling mechanism, the other side of the flash tower body is communicated with a discharge hole, the upper part of the flash tower body is communicated with a connecting pipe, the inside of the connecting pipe is provided with a booster fan, the other end of the connecting pipe is communicated with a cooling box, the other side of the connecting pipe is communicated with an exhaust pipe, and an air filtering box is sleeved on the exhaust pipe and is communicated with the exhaust pipe; the utility model has the beneficial effects that the phosphoric acid is heated by the heating box, the waste water is filtered by the liquid filter element, and the discharged waste gas is filtered by the air filter element, so that the problems that the phosphoric acid cannot be heated and the evaporated waste gas cannot be filtered by the conventional device are solved.
Description
Technical Field
The utility model relates to the technical field of novel flash towers, in particular to a novel flash tower for wet-process phosphoric acid production.
Background
Phosphoric acid obtained by decomposing phosphorite with sulfuric acid, nitric acid or hydrochloric acid is called as wet phosphoric acid, and the method for preparing phosphoric acid by decomposing phosphorite with sulfuric acid is the most basic method in the production of wet phosphoric acid, and the wet production is to decompose phosphorite powder with inorganic acid, separate crude phosphoric acid and obtain phosphoric acid product after purification.
Through retrieval, china patent discloses a novel flash tower for wet process phosphoric acid production, (authorized bulletin number: CN 217745772U), comprising: the device comprises a cylindrical tower body, a feeding channel arranged in the middle of the tower body and communicated with the interior of the tower body, and a guide plate arranged on the inner wall of the tower body and clung to the inner wall of the tower body; the feeding channel is parallel to the tangential direction of the tower body; the end part of the guide plate is connected with the feeding channel, slurry in the feeding channel is guided to flow along the inner wall of the tower body, and the projection of the guide plate to the bottom surface of the tower body is in a ring shape. According to the utility model, the slurry flows along the inner wall of the tower body along with the guide plate, so that the slurry splashing caused by the slurry striking the inner wall of the tower body is reduced, the scaling phenomenon of the inner wall of the tower body generated by the slurry splashing is greatly reduced, the times of cleaning the scale in the tower body are reduced, the production stopping and maintenance frequency of the tower body is reduced, and the working efficiency is improved.
In the practical application process of the technology, although slurry splashing caused by slurry striking the inner wall of the tower body is reduced, so that scaling phenomenon of the inner wall of the tower body generated by the phenomenon is greatly reduced, and the times for cleaning the scale in the tower body are reduced, but in the use process, phosphoric acid needs to be heated before an evaporation tower to achieve a better evaporation effect, and the scheme lacks a device for heating the phosphoric acid, and the phosphoric acid has harmful substances, so that the evaporation gas brings away a large amount of harmful substances in the evaporation process, and if the phosphoric acid is directly discharged, the environment pollution is very easy to cause.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a novel flash tower for wet-process phosphoric acid production.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a novel flash column for wet process phosphoric acid production, includes the flash column body, one side intercommunication of flash column body has the inlet pipe, the cover is equipped with the heating cabinet and links to each other rather than being used, one side of heating cabinet is provided with throttle mechanism, the opposite side intercommunication of flash column body has the discharge gate, the top intercommunication of flash column body has the connecting pipe, the inside of connecting pipe is provided with booster fan, the other end intercommunication of connecting pipe has the cooler bin, the opposite side intercommunication of cooler bin has the exhaust pipe, the cover is equipped with the air filter case and is linked together rather than being linked together on the exhaust pipe;
The throttle mechanism comprises a supporting frame, a paraffin storage chamber, a push rod, a connecting plate, a spring and a spring seat, wherein the supporting frame is fixedly connected to the inside of a feeding pipe, the paraffin storage chamber is fixedly connected to one side of the supporting frame, one end of the push rod penetrates through the paraffin storage chamber and is in sliding connection with the inside of the paraffin storage chamber, one side of the connecting plate is movably connected with the other side of the supporting frame, one side of the connecting plate is fixedly connected with the other end of the push rod, one end of the spring is fixedly connected with the other side of the connecting plate, the other end of the spring is fixedly connected with one side of the spring seat, and the spring seat is fixedly connected to the inside of the feeding pipe.
Preferably, the booster fan comprises a connecting frame, a motor, a connecting shaft and fan blades, wherein the connecting frame is fixedly connected to the inside of the connecting pipe, the motor is fixedly connected to one side of the connecting frame, one end of the connecting shaft is fixedly connected with the output end of the motor, and the fan blades are sleeved on the connecting shaft and are fixedly connected with the connecting shaft.
Preferably, the cooling box is internally fixedly connected with a condensing pipe, two ends of the condensing pipe are communicated with compressors, and the compressors are fixedly connected to the placing table.
Preferably, an air filter element is arranged in the air filter box, and the air filter element is fixedly connected in the air filter box.
Preferably, a waste pipe is arranged below the cooling box, and the waste pipe penetrates through the placing table and is communicated with the waste pipe.
Preferably, the waste pipe is sleeved with a liquid filtering box, the liquid filtering box is communicated with the waste pipe, a liquid filter element is arranged in the liquid filtering box, and the liquid filter element is fixedly connected in the liquid filtering box.
Preferably, a flow blocking plate is arranged between the throttling mechanism and the heating box, and the flow blocking plate is fixedly connected inside the feeding pipe.
The utility model has the following beneficial effects:
1. According to the utility model, the phosphoric acid is heated by the heating box, the paraffin is injected into the paraffin storage chamber, and the ejector rod is pushed to move under the conditions of thermal expansion and cold contraction of the paraffin, so that a distance is generated between the connecting plate and the support frame, and the heated phosphoric acid flows into the flash tower body through the support frame to evaporate, thereby not only solving the problem that the conventional device cannot heat the phosphoric acid, but also increasing the heating effect of the heating box on the phosphoric acid.
2. According to the utility model, the fan blades are driven to rotate by the starting motor, the internal evaporation gas of the flash tower body can be pumped into the cooling box through the connecting pipe, under the action of the condensing pipe and the compressor, when gaseous water in air meets condensation and is integrated into water drops, the water drops are discharged through the waste water pipe, the waste water is filtered through the liquid filter element, and the discharged waste gas is filtered through the air filter element, so that the problem that the evaporation waste gas cannot be filtered by the traditional device is solved.
Drawings
FIG. 1 is a schematic perspective view of a novel flash column of the present utility model;
FIG. 2 is a schematic diagram of a connection structure of a throttle mechanism according to the present utility model;
FIG. 3 is a schematic view of a connection structure of a booster fan according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a cooling box and an air filter box according to the present utility model;
Fig. 5 is a schematic cross-sectional view of a waste pipe according to the present utility model.
Legend description:
1. a flash column body; 2. a feed pipe; 3. a heating box; 4. a throttle mechanism; 41. a support frame; 42. a paraffin storage chamber; 43. a push rod; 44. a connecting plate; 45. a spring; 46. a spring seat; 5. a connecting pipe; 6. a booster fan; 61. a connecting frame; 62. a motor; 63. a connecting shaft; 64. a fan blade; 7. a cooling box; 8. an air filtration box; 9. a placement table; 10. a waste pipe; 11. a liquid filtration tank; 12. a discharge port; 13. a spoiler; 14. a condensing tube; 15. a compressor; 16. an exhaust pipe; 17. an air filter element; 18. a liquid filter element.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, one embodiment provided by the present utility model is: a novel flash tower for wet phosphoric acid production comprises a flash tower body 1, wherein one side of the flash tower body 1 is communicated with a feed pipe 2, a heating box 3 is sleeved on the feed pipe 2 and is connected with the flash tower body for heating phosphoric acid, one side of the heating box 3 is provided with a throttling mechanism 4, the throttling mechanism 4 is used for throttling the phosphoric acid, the other side of the flash tower body 1 is communicated with a discharge hole 12, a connecting pipe 5 is communicated above the flash tower body 1, a booster fan 6 is arranged in the connecting pipe 5, the booster fan 6 is used for extracting evaporating gas in the flash tower body 1, the other end of the connecting pipe 5 is communicated with a cooling box 7, the other side of the cooling box 7 is communicated with an exhaust gas pipe 16, and an air filtering box 8 is sleeved on the exhaust gas pipe 16 and is communicated with the exhaust gas;
The throttle mechanism 4 comprises a supporting frame 41, a paraffin storage chamber 42, a push rod 43, a connecting plate 44, a spring 45 and a spring seat 46, wherein the supporting frame 41 is fixedly connected inside the feeding pipe 2, the paraffin storage chamber 42 is fixedly connected to one side of the supporting frame 41, one end of the push rod 43 penetrates through the paraffin storage chamber 42 and is in sliding connection with the inside of the paraffin storage chamber, one side of the connecting plate 44 is movably connected with the other side of the supporting frame 41, one side of the connecting plate 44 is fixedly connected with the other end of the push rod 43, one end of the spring 45 is fixedly connected with the other side of the connecting plate 44, the other end of the spring 45 is fixedly connected with one side of the spring seat 46, and the spring seat 46 is fixedly connected inside the feeding pipe 2.
Through above-mentioned technical scheme, through setting up throttle mechanism 4, through the inside injection paraffin of paraffin memory cell 42, promote ejector pin 43 removal in the circumstances of paraffin expend with heat and contract with cold to produce the distance between messenger's connecting plate 44 and the support frame 41, make the phosphoric acid after heating flow to the inside of flash column body 1 through support frame 41 and evaporate, can carry out throttle to the phosphoric acid effectively and promote the heating effect of heating cabinet 3 to the phosphoric acid, also can block it when the phosphoric acid temperature is lower simultaneously.
Specifically, the booster fan 6 includes a connecting frame 61, a motor 62, a connecting shaft 63 and a fan blade 64, the connecting frame 61 is fixedly connected in the connecting pipe 5, the motor 62 is fixedly connected on one side of the connecting frame 61, one end of the connecting shaft 63 is fixedly connected with the output end of the motor 62, and the fan blade 64 is sleeved on the connecting shaft 63 and is fixedly connected with the connecting shaft 63.
Through above-mentioned technical scheme, through setting up booster fan 6, drive flabellum 64 rotation through starter motor 62, can force the inside evaporation gas of flash column body 1 to take out to cooling box 7 inside through connecting pipe 5, increased evaporation gas's discharge amount.
Specifically, the cooling box 7 is fixedly connected with a condenser pipe 14, two ends of the condenser pipe 14 are communicated with a compressor 15, and the compressor 15 is fixedly connected to the placing table 9.
Through above-mentioned technical scheme, through condenser pipe 14 and compressor 15 effect under, can be with evaporating the water condensing of in the gas and become the water droplet, can take away certain harmful substance in the waste gas through the water droplet of agglutinating, also can make the aqueous vapor separate the filtration simultaneously to make waste gas reach better emission standard.
Specifically, the air filter box 8 is internally provided with an air filter element 17, and the air filter element 17 is fixedly connected in the air filter box 8.
Through above-mentioned technical scheme, through setting up air filter 17, can filter the evaporation gas after the agglutination, prevent that waste gas from directly discharging to cause the pollution of environment.
Specifically, a waste pipe 10 is provided below the cooling tank 7, and the waste pipe 10 penetrates the placement table 9 and is communicated with the waste pipe 10.
By the above technical scheme, the wastewater after coagulation can be discharged by arranging the wastewater pipe 10, and water-gas separation filtration can be performed.
Specifically, the waste pipe 10 is sleeved with a liquid filtering box 11, the liquid filtering box 11 is communicated with the waste pipe 10, a liquid filter element 18 is arranged in the liquid filtering box 11, and the liquid filter element 18 is fixedly connected in the liquid filtering box 11.
Through above-mentioned technical scheme, through setting up liquid filter tank 11, through liquid filter core 18, can filter the waste water after the agglutination, prevent that waste water from directly discharging to cause the pollution of water resource and environment.
Specifically, a spoiler 13 is arranged between the throttle mechanism 4 and the heating box 3, and the spoiler 13 is fixedly connected inside the feeding pipe 2. Through the technical scheme.
Through the technical scheme, through the arrangement of the flow blocking plate 13, phosphoric acid entering the feeding pipe 2 can be blocked, and the flow rate of the phosphoric acid can be slowed down, so that the heating box 3 can heat the phosphoric acid better.
Working principle: when the device is used, firstly, the phosphoric acid feeding pipe 2 is injected, phosphoric acid can be heated through the heating box 3, the flow speed of the phosphoric acid can be slowed down through the flow blocking plate 13, so that the heating box 3 can better heat the phosphoric acid, paraffin is injected into the interior of the paraffin storage chamber 42, the ejector rod 43 is pushed to move under the condition of thermal expansion and contraction of the paraffin, so that a distance is generated between the connecting plate 44 and the supporting frame 41, the phosphoric acid after heating flows into the interior of the flash evaporation tower body 1 through the supporting frame 41 to evaporate, the heating effect of the phosphoric acid can be effectively improved by throttling the heating box 3, meanwhile, the phosphoric acid can be blocked when the temperature is lower, after the phosphoric acid evaporates in the interior of the flash evaporation tower body 1, the fan blade 64 is driven to rotate through the starting motor 62, the interior evaporation gas of the flash evaporation tower body 1 can be forced to be pumped into the interior of the cooling box 7 through the connecting pipe 5, then the compressor 15 is started again, a certain harmful substance in the waste gas can be taken away through the condensed water drops in the waste gas after the condensation can be enabled to flow through the supporting frame 41, and simultaneously, the waste gas can be filtered to be enabled to separate, the waste gas can be enabled to reach the standard of directly discharging the waste water through the condensation pipe, the waste water can be discharged through the waste water filter element, the waste water can be directly discharged through the waste water filter element 18, and the waste water can be directly discharged through the waste water filter element is prevented from being polluted, and the waste water can be discharged through the waste water filter element, and the waste water can be directly is polluted by the waste water filter waste water can be discharged through the waste water filter 18, and the waste water can be discharged waste water can be polluted through the waste water can be directly is discharged waste filter waste water through the waste filter 18.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. A novel flash column for wet process phosphoric acid production, includes flash column body (1), its characterized in that: one side of flash column body (1) communicates there is inlet pipe (2), the cover is equipped with heating cabinet (3) and links to each other rather than being used on inlet pipe (2), one side of heating cabinet (3) is provided with throttle mechanism (4), the opposite side intercommunication of flash column body (1) has discharge gate (12), the top intercommunication of flash column body (1) has connecting pipe (5), the inside of connecting pipe (5) is provided with booster fan (6), the other end intercommunication of connecting pipe (5) has cooling cabinet (7), the opposite side intercommunication of cooling cabinet (7) has exhaust pipe (16), the cover is equipped with air filter case (8) and is linked together with it on exhaust pipe (16);
The utility model provides a throttle mechanism (4) is including support frame (41), paraffin storage chamber (42), ejector pin (43), connecting plate (44), spring (45) and spring holder (46), support frame (41) fixed connection is in the inside of inlet pipe (2), paraffin storage chamber (42) fixed connection is in one side of support frame (41), the one end of ejector pin (43) runs through paraffin storage chamber (42) and its inside sliding connection, opposite side swing joint of connecting plate (44) one side and support frame (41), one side of connecting plate (44) and the other end fixed connection of ejector pin (43), the one end of spring (45) and the opposite side fixed connection of connecting plate (44), the other end of spring (45) and one side fixed connection of spring holder (46), spring holder (46) fixed connection is in the inside of inlet pipe (2).
2. A novel flash column for wet process phosphoric acid production according to claim 1, wherein: the supercharging fan (6) comprises a connecting frame (61), a motor (62), a connecting shaft (63) and fan blades (64), wherein the connecting frame (61) is fixedly connected to the inside of a connecting pipe (5), the motor (62) is fixedly connected to one side of the connecting frame (61), one end of the connecting shaft (63) is fixedly connected with the output end of the motor (62), and the fan blades (64) are sleeved on the connecting shaft (63) and are fixedly connected with the connecting shaft.
3. A novel flash column for wet process phosphoric acid production according to claim 1, wherein: the cooling box (7) is internally fixedly connected with a condensing pipe (14), two ends of the condensing pipe (14) are communicated with a compressor (15), and the compressor (15) is fixedly connected to the placing table (9).
4. A novel flash column for wet process phosphoric acid production according to claim 1, wherein: the inside of air filter case (8) is provided with air filter core (17), air filter core (17) fixed connection is in the inside of air filter case (8).
5. A novel flash column for wet process phosphoric acid production according to claim 1, wherein: a waste pipe (10) is arranged below the cooling box (7), and the waste pipe (10) penetrates through the placing table (9) and is communicated with the waste pipe (10).
6. The novel flash column for wet process phosphoric acid production of claim 5, wherein: the waste water pipe (10) is sleeved with a liquid filtering box (11), the liquid filtering box (11) is communicated with the waste water pipe (10), a liquid filter element (18) is arranged in the liquid filtering box (11), and the liquid filter element (18) is fixedly connected in the liquid filtering box (11).
7. A novel flash column for wet process phosphoric acid production according to claim 1, wherein: a flow blocking plate (13) is arranged between the throttling mechanism (4) and the heating box (3), and the flow blocking plate (13) is fixedly connected inside the feeding pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322144852.5U CN220860682U (en) | 2023-08-10 | 2023-08-10 | Novel flash tower for wet-process phosphoric acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322144852.5U CN220860682U (en) | 2023-08-10 | 2023-08-10 | Novel flash tower for wet-process phosphoric acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220860682U true CN220860682U (en) | 2024-04-30 |
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ID=90807701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322144852.5U Active CN220860682U (en) | 2023-08-10 | 2023-08-10 | Novel flash tower for wet-process phosphoric acid production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220860682U (en) |
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2023
- 2023-08-10 CN CN202322144852.5U patent/CN220860682U/en active Active
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