CN219783817U - Concentrated crystallization equipment of spent acid reuse - Google Patents
Concentrated crystallization equipment of spent acid reuse Download PDFInfo
- Publication number
- CN219783817U CN219783817U CN202321324876.2U CN202321324876U CN219783817U CN 219783817 U CN219783817 U CN 219783817U CN 202321324876 U CN202321324876 U CN 202321324876U CN 219783817 U CN219783817 U CN 219783817U
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- Prior art keywords
- pipe
- acid
- conveying pipe
- chamber
- fixedly connected
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- 239000002253 acid Substances 0.000 title claims abstract description 83
- 238000002425 crystallisation Methods 0.000 title claims abstract description 10
- 230000008025 crystallization Effects 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 75
- 238000001704 evaporation Methods 0.000 claims abstract description 44
- 230000008020 evaporation Effects 0.000 claims abstract description 36
- 239000002699 waste material Substances 0.000 claims abstract description 16
- 238000004064 recycling Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 4
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides concentration crystallization equipment for recycling waste acid, which comprises a replacement chamber, an acid liquid conveying pipe, an acid liquid collecting tank, a conveying pipe II, an evaporation chamber, a conveying pipe III, a condenser and a conveying pipe IV, wherein the replacement chamber is connected with one end of the acid liquid conveying pipe, the other end of the acid liquid conveying pipe is connected with the acid liquid collecting tank, and the acid liquid collecting tank is communicated with the replacement chamber; the acid liquor collecting tank is connected with one end of a second conveying pipe, the other end of the second conveying pipe is connected with an evaporation chamber, and the evaporation chamber is communicated with the acid liquor collecting tank; the surface of the acid liquor collecting tank is provided with a spiral hollow pipe, the bottom of the spiral hollow pipe is provided with a connecting pipe, and the connecting pipe is connected with a conveying pipe III; the evaporation chamber is connected with one end of a second connecting pipe, and the other end of the second connecting pipe is connected with one end of a third conveying pipe; the evaporation chamber is communicated with the spiral hollow tube; the spiral hollow pipe is connected with one end of a conveying pipe four, and the other end of the conveying pipe four is connected with the condenser. The utility model can fully utilize the evaporated gas to preheat the acid liquor, thereby improving the evaporation speed and the condensation speed in the later stage.
Description
Technical Field
The utility model belongs to the field of waste acid treatment, and particularly relates to a concentrating and crystallizing device for recycling waste acid.
Background
The process method for treating waste acid by sulfuric acid replacement and negative pressure evaporation crystallization and recycling mixed acid (nitric acid and hydrofluoric acid) is a technology which is applied to production through experiments and researches for many years by various research institutions and enterprises in recent years.
According to the characteristics that nitric acid and hydrofluoric acid are easy to volatilize and easy to dissolve in water, sulfuric acid replacement, indirect steam heating and negative pressure evaporation concentration processes are adopted. The gas generated by evaporation is condensed into mixed acid by a condenser, and the mixed acid is returned to acid washing for use. The residual liquid is deeply treated by adopting metal precipitation and the like.
However, the existing concentration crystallization equipment for recycling the waste acid cannot fully utilize the heat after evaporation to preheat the waste acid when in use, so that a large amount of heat is lost and wasted.
Therefore, the utility model of a concentrating and crystallizing device for recycling waste acid is very necessary.
Disclosure of Invention
In order to solve the technical problems, the utility model provides concentrating and crystallizing equipment for recycling waste acid, which adopts the following technical scheme: the utility model provides a concentrated crystallization equipment of spent acid recycle, includes displacement room, acidizing fluid conveyer pipe, acidizing fluid collection tank, conveyer pipe two, evaporating chamber, conveyer pipe three, condenser and conveyer pipe four, wherein: the acid recovery liquid outlet on the replacement chamber is fixedly connected with one end of an acid liquid conveying pipe, the other end of the acid liquid conveying pipe is fixedly connected with the liquid inlet of an acid liquid collecting tank, and the acid liquid collecting tank is communicated with the interior of the replacement chamber through the acid liquid conveying pipe; the liquid outlet of the acid liquid collecting tank is fixedly connected with one end of a second conveying pipe, the other end of the second conveying pipe is fixedly connected with the liquid inlet of an evaporating chamber, and the evaporating chamber is communicated with the inside of the acid liquid collecting tank through the second conveying pipe; the outer surface of the acid liquid collecting tank is fixedly provided with a spiral hollow pipe, the bottom of the spiral hollow pipe is fixedly provided with a connecting pipe, and the outer end of the connecting pipe is fixedly connected with one end of a conveying pipe III; the gas outlet of the evaporation chamber is fixedly connected with one end of a second connecting pipe, the other end of the second connecting pipe is fixedly connected with one end of a third conveying pipe, and the second connecting pipe is used for conveying gas evaporated in the evaporation chamber into the spiral hollow pipe; the evaporation chamber is communicated with the inside of the spiral hollow pipe through a conveying pipe III; the top of the spiral hollow pipe is fixedly connected with one end of a conveying pipe IV, and the other end of the conveying pipe IV is fixedly connected with the condenser.
Preferably, a displacement liquid inlet pipe, a waste acid inlet pipe and a residual liquid discharge pipe are fixedly arranged on the displacement chamber.
Preferably, the evaporation chamber is fixedly provided with a heating chamber and a liquid adding pipe, and the heating chamber is communicated with the evaporation chamber and is used for providing required heat for the evaporation chamber.
Preferably, the condenser comprises a condenser main body, wherein a spiral pipeline is fixedly arranged in the condenser main body, and the top end of the spiral pipeline is fixedly connected with one end of a conveying pipe IV; the bottom of condenser main part has seted up the breach, and the inside fixed mounting of breach has the drain pipe, and the bottom fixed connection of this drain pipe and helical piping.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, through the arrangement of the spiral hollow tube, the evaporated gas can enter the spiral hollow tube, and the acid liquid collection tank is heated through the spiral hollow tube, so that the acid liquid in the acid liquid collection tank is indirectly preheated, the evaporation speed in the later stage is improved, the gas in the spiral hollow tube can be primarily cooled, the condensation speed in the later stage is improved, and the heat of the evaporated gas is fully utilized, so that the device is more efficient and energy-saving.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model.
FIG. 2 is a schematic diagram of a condenser and a transfer tube of the present utility model.
Fig. 3 is a schematic view of a partial cut-away structure of the condenser of the present utility model.
In the figure:
the device comprises a replacement chamber 1, an acid liquid conveying pipe 2, an acid liquid collecting tank 3, a conveying pipe II 4, an evaporation chamber 5, a spiral hollow pipe 6, a connecting pipe 7, a conveying pipe III 8, a condenser 9, a condenser main body 91, a spiral pipeline 92, a notch 93, a liquid outlet pipe 94, a conveying pipe IV 10, a replacement liquid inlet pipe 11, a waste acid inlet pipe 12, a residual liquid outlet pipe 13, a heating chamber 14, a liquid adding pipe 15 and a connecting pipe II 16.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
In the description of the embodiments, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model is further described below with reference to the accompanying drawings:
example 1
Referring to fig. 1 to 3, a concentrating and crystallizing device for recycling waste acid comprises a replacement chamber 1, an acid liquid conveying pipe 2, an acid liquid collecting tank 3, a conveying pipe two 4, an evaporating chamber 5, a conveying pipe three 8, a condenser 9 and a conveying pipe four 10, wherein: the recovered acid liquid outlet on the replacement chamber 1 is fixedly connected with one end of an acid liquid conveying pipe 2, the replaced acid liquid can be conveyed into an acid liquid collecting tank 3 in a concentrated mode through the arrangement of the acid liquid conveying pipe 2, the other end of the acid liquid conveying pipe 2 is fixedly connected with a liquid inlet of the acid liquid collecting tank 3, and the acid liquid collecting tank 3 is communicated with the inside of the replacement chamber 1 through the acid liquid conveying pipe 2; the liquid outlet of the acid liquid collection tank 3 is fixedly connected with one end of a second conveying pipe 4, the other end of the second conveying pipe 4 is fixedly connected with the liquid inlet of an evaporation chamber 5, the evaporation chamber 5 is communicated with the inside of the acid liquid collection tank 3 through the second conveying pipe 4, and the acid liquid in the acid liquid collection tank 3 can be conveyed into the evaporation chamber 5 for evaporation crystallization through the arrangement of the second conveying pipe 4; the outer surface of the acid liquor collecting tank 3 is fixedly provided with a spiral hollow pipe 6, evaporated gas can stay for a long time through the arrangement of the spiral hollow pipe 6, so that the acid liquor in the acid liquor collecting tank 3 is preheated by the heat of the evaporated gas, the heat is fully utilized, meanwhile, the acid liquor in the acid liquor collecting tank 3 absorbs the heat of the evaporated gas, so that the rapid condensation is conveniently carried out at the later stage through a condenser 9, the bottom of the spiral hollow pipe 6 is fixedly provided with a connecting pipe 7, the outer end of the connecting pipe 7 is fixedly connected with one end of a conveying pipe III 8 through a one-way valve, and the evaporated gas can conveniently enter the spiral hollow pipe 6 through the arrangement of the connecting pipe 7 and the conveying pipe III 8; the air outlet of the evaporation chamber 5 is fixedly connected with one end of a second connecting pipe 16, the other end of the second connecting pipe 16 is fixedly connected with one end of a third conveying pipe 8, and the second connecting pipe 16 is used for conveying the gas evaporated in the evaporation chamber 5 into the spiral hollow pipe 6; the evaporation chamber 5 is communicated with the inside of the spiral hollow pipe 6 through a conveying pipe III 8; the top of spiral hollow tube 6 and the one end fixed connection of conveyer pipe IV 10, and the other end and the condenser 9 fixed connection of conveyer pipe IV 10, through the setting of condenser 9, can condense the gas after evaporating, make it become mixed acid, return the pickling and use.
The replacement chamber 1 is fixedly provided with a replacement liquid inlet pipe 11, a waste acid inlet pipe 12 and a residual liquid discharge pipe 13, when the device is used, required replacement liquid and waste acid are conveyed into the replacement chamber 1 through the replacement liquid inlet pipe 11 and the waste acid inlet pipe 12 for replacement, then the replaced acid liquid is conveyed into the acid liquid collecting tank 3 in a concentrated manner through the acid liquid conveying pipe 2, and finally the residual liquid in the replacement chamber 1 is discharged through the residual liquid discharge pipe 13; the replacement chamber 1 is of the prior art, and will not be described in detail here.
The evaporation chamber 5 is fixedly provided with a heating chamber 14 and a liquid adding pipe 15, the liquid adding pipe 15 is used for being connected with external liquid adding equipment, the heating chamber 14 is communicated with the evaporation chamber 5, and the heating chamber 14 is used for providing required heat for the evaporation chamber 5; it should be noted that, the evaporating chamber 5 and the heating chamber 14 are in the prior art, such as the negative pressure evaporating and concentrating process in the prior art, so that the description thereof will not be repeated here.
The condenser 9 comprises a condenser main body 91, a spiral pipeline 92 is fixedly arranged in the condenser main body 91, and the retention time of evaporated gas can be retained through the arrangement of the spiral pipeline 92, so that the evaporated gas can be fully condensed through the condenser main body 91, the top end of the spiral pipeline 92 is fixedly connected with one end of a conveying pipe IV 10 through a one-way valve, and the gas in the spiral hollow pipe 6 can conveniently enter the spiral pipeline 92 through the arrangement of the conveying pipe IV 10; the bottom of condenser main part 91 has seted up breach 93, and the inside fixed mounting of breach 93 has drain pipe 94, through the setting of drain pipe 94, can be connected with the corresponding equipment of outside to utilize the mixed acid after the condensation, the one end of this drain pipe 94 passes through check valve fixed connection with the bottom of helical piping 92.
By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.
Claims (4)
1. A concentrating and crystallizing device for recycling waste acid is characterized in that: including replacement room (1), acidizing fluid conveyer pipe (2), acidizing fluid collection jar (3), conveyer pipe two (4), evaporating chamber (5), conveyer pipe three (8), condenser (9) and conveyer pipe four (10), wherein: the recovered acid outlet on the replacement chamber (1) is fixedly connected with one end of an acid liquid conveying pipe (2), the other end of the acid liquid conveying pipe (2) is fixedly connected with the liquid inlet of an acid liquid collecting tank (3), and the acid liquid collecting tank (3) is communicated with the inside of the replacement chamber (1) through the acid liquid conveying pipe (2); the liquid outlet of the acid liquid collection tank (3) is fixedly connected with one end of a second conveying pipe (4), the other end of the second conveying pipe (4) is fixedly connected with the liquid inlet of an evaporation chamber (5), and the evaporation chamber (5) is communicated with the inside of the acid liquid collection tank (3) through the second conveying pipe (4); the outer surface of the acid liquid collecting tank (3) is fixedly provided with a spiral hollow pipe (6), the bottom of the spiral hollow pipe (6) is fixedly provided with a connecting pipe (7), and the outer end of the connecting pipe (7) is fixedly connected with one end of a conveying pipe III (8); the air outlet of the evaporation chamber (5) is fixedly connected with one end of a second connecting pipe (16), the other end of the second connecting pipe (16) is fixedly connected with one end of a third conveying pipe (8), and the second connecting pipe (16) is used for conveying the gas evaporated in the evaporation chamber (5) into the spiral hollow pipe (6); the evaporation chamber (5) is communicated with the inside of the spiral hollow pipe (6) through a conveying pipe III (8); the top of the spiral hollow pipe (6) is fixedly connected with one end of a conveying pipe IV (10), and the other end of the conveying pipe IV (10) is fixedly connected with the condenser (9).
2. A spent acid recycling concentrated crystallization apparatus according to claim 1, wherein: the replacement chamber (1) is fixedly provided with a replacement liquid inlet pipe (11), a waste acid inlet pipe (12) and a residual liquid discharge pipe (13).
3. A spent acid recycling concentrated crystallization apparatus according to claim 1, wherein: the evaporation chamber (5) is fixedly provided with a heating chamber (14) and a liquid adding pipe (15), the heating chamber (14) is communicated with the evaporation chamber (5), and the heating chamber (14) is used for providing required heat for the evaporation chamber (5).
4. A spent acid recycling concentrated crystallization apparatus according to claim 1, wherein: the condenser (9) comprises a condenser main body (91), a spiral pipeline (92) is fixedly arranged in the condenser main body (91), and the top end of the spiral pipeline (92) is fixedly connected with one end of a conveying pipe IV (10); the bottom of condenser main part (91) has seted up breach (93), and the inside fixed mounting of breach (93) has drain pipe (94), and the bottom fixed connection of this drain pipe (94) and helical piping (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321324876.2U CN219783817U (en) | 2023-05-26 | 2023-05-26 | Concentrated crystallization equipment of spent acid reuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321324876.2U CN219783817U (en) | 2023-05-26 | 2023-05-26 | Concentrated crystallization equipment of spent acid reuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219783817U true CN219783817U (en) | 2023-10-03 |
Family
ID=88176427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321324876.2U Active CN219783817U (en) | 2023-05-26 | 2023-05-26 | Concentrated crystallization equipment of spent acid reuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219783817U (en) |
-
2023
- 2023-05-26 CN CN202321324876.2U patent/CN219783817U/en active Active
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