CN214936055U - Sulfuric acid discharge pipe fitting and hydrogen fluoride reactor - Google Patents
Sulfuric acid discharge pipe fitting and hydrogen fluoride reactor Download PDFInfo
- Publication number
- CN214936055U CN214936055U CN202121150527.4U CN202121150527U CN214936055U CN 214936055 U CN214936055 U CN 214936055U CN 202121150527 U CN202121150527 U CN 202121150527U CN 214936055 U CN214936055 U CN 214936055U
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- CN
- China
- Prior art keywords
- sulfuric acid
- acid
- hydrogen fluoride
- connecting port
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 135
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910000040 hydrogen fluoride Inorganic materials 0.000 title claims abstract description 34
- 239000002253 acid Substances 0.000 claims abstract description 54
- 239000007921 spray Substances 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 239000002699 waste material Substances 0.000 claims description 27
- 239000000945 filler Substances 0.000 claims description 23
- 238000005406 washing Methods 0.000 claims description 21
- 230000020477 pH reduction Effects 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 7
- 238000005554 pickling Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 15
- 239000002245 particle Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 32
- 239000001117 sulphuric acid Substances 0.000 description 32
- 238000012856 packing Methods 0.000 description 12
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Gas Separation By Absorption (AREA)
Abstract
A sulfuric acid discharge pipe fitting comprises a connecting piece, an acid adding vertical pipe and a sulfuric acid spray pipe, wherein the connecting piece comprises a second connecting port, a third connecting port and a fourth connecting port, the upper end of the acid adding vertical pipe is connected with the fourth connecting port, the upper end of the sulfuric acid spray pipe is used for introducing sulfuric acid, the lower end of the sulfuric acid spray pipe is closed, an acid spraying gap is arranged on the outer wall, close to the closed end, of the sulfuric acid spray pipe, the acid spraying gap is a spiral through seam formed on the annular wall of the sulfuric acid spray pipe along the axial direction of the sulfuric acid spray pipe, the sulfuric acid in the sulfuric acid spray pipe is sprayed into the acid adding vertical pipe from the acid spraying gap, a spiral sulfuric acid film is formed between the inner wall of the acid adding vertical pipe and the sulfuric acid spray pipe by the sprayed sulfuric acid, and in the process that hydrogen fluoride containing dust particles is discharged through the acid adding vertical pipe, a layer of the sulfuric acid film needs to pass through, compared with the sulfuric acid with rain-shaped liquid drop, the dust particle removing effect is greatly improved, a hydrogen fluoride reactor is also provided.
Description
Technical Field
The utility model relates to an aluminium fluoride production facility technical field, in particular to sour pipe fitting and hydrogen fluoride reactor under sulphuric acid.
Background
Hydrogen fluoride is one of raw materials for producing aluminum fluoride, the hydrogen fluoride is produced by reacting fluorite and sulfuric acid in a rotary reactor, the hydrogen fluoride generated by the reaction needs to enter a washing tower for pretreatment, the washing tower is usually adopted as a packing type washing tower, dust particles are mixed in the hydrogen fluoride gas, the dust particles enter a gap of packing of the washing tower along with the hydrogen fluoride gas, and the washing tower can be blocked as long as time passes, so that the washing tower cannot work normally.
Usually, the sulfuric acid is introduced into a pipeline between the rotary reactor and the washing tower through an acid discharge pipe and then enters the rotary reactor, the ring wall of the acid discharge pipe is densely distributed with a plurality of holes, and the sulfuric acid forms rain-like liquid drops in the pipeline between the rotary reactor and the washing tower through the plurality of holes densely distributed on the ring wall, so as to capture dust particles mixed in the hydrogen fluoride gas.
However, in the above solution, since there are gaps between the rain-like droplets, the effect of the rain-like droplet sulfuric acid on removing the dust particles is still not good.
Disclosure of Invention
In view of the above, it is necessary to provide a sulfuric acid discharge pipe.
It is also necessary to provide a hydrogen fluoride reactor.
The utility model provides a sulphuric acid is sour pipe fitting down, includes connecting piece, acidification standpipe, sulphuric acid spray tube, the connecting piece includes second connector, third connector, fourth connector, sulphuric acid spray tube, acidification standpipe all vertically set up, the upper end and the fourth connector connection of acidification standpipe, the upper end of sulphuric acid spray tube is used for letting in sulphuric acid, the lower extreme of sulphuric acid spray tube is sealed, is equipped with at the outer wall that sulphuric acid spray tube is close to the blind end and spouts the acid gap, spout the acid gap and link up the rampart of sulphuric acid spray tube, spout the spiral that the acid gap is formed along the axis direction of sulphuric acid spray tube on the rampart of sulphuric acid spray tube and lead to the seam, the lower extreme of sulphuric acid spray tube stretches into the connecting piece from the second connector, the part that sulphuric acid spray tube set up and spout the acid gap stretches into in acidification standpipe.
Preferably, the connecting piece comprises a first connecting port, and the first connecting port, the second connecting port, the third connecting port and the fourth connecting port are uniformly distributed along the outer circumferential direction of the connecting piece by taking the center of the connecting piece as the circle center.
Preferably, the first connector cover is combined with a cover body.
Preferably, the outer annular wall of the sulfuric acid spray pipe is hermetically connected with the second connecting port.
A hydrogen fluoride reactor comprises a hydrogen fluoride reaction furnace and a sulfuric acid discharge pipe fitting, wherein the lower end of an acid adding vertical pipe is connected with an acid adding port of the hydrogen fluoride reaction furnace.
Preferably, the hydrogen fluoride reactor further comprises a washing tower, and the third connection port is connected with a gas phase inlet of the washing tower.
Preferably, the washing tower comprises a tower body, a first filler, a second filler and a cyclone column plate, wherein the first filler, the second filler and the cyclone column plate are sequentially arranged in the tower body from top to bottom.
Preferably, the washing tower further comprises a waste acid overflow groove and a waste acid pump, wherein an inlet of the waste acid overflow groove is communicated with a cavity between the bottom wall of the tower body in the tower body and the rotational flow tower plate, an outlet of the waste acid overflow groove is connected with an inlet of the waste acid pump, and an outlet of the waste acid pump is communicated with a cavity between the second filler and the rotational flow tower plate in the tower body.
Preferably, the outlet of the waste acid pump is communicated with a cavity between the first filler and the second filler in the tower body.
Preferably, the outlet of the waste acid pump is communicated with the cavity between the top wall of the tower body and the first filler.
Compared with the prior art, the beneficial effects of the utility model reside in that:
sulphuric acid in the sulphuric acid spray tube is spout to in the acidification standpipe from spouting the acid gap, and the spiral sulphuric acid film is formed to spun sulphuric acid between the inner wall of acidification standpipe and sulphuric acid spray tube, and the hydrogen fluoride that contains the dust particulate matter passes through acidification standpipe exhaust in-process, need pass the sulphuric acid film of one deck, and the sulphuric acid of rain form liquid drop than, improves the dust particulate matter effect of detaching greatly.
Drawings
Fig. 1 is a schematic structural diagram of the sulfuric acid discharge pipe fitting.
Fig. 2 is a schematic diagram of the structure of the hydrogen fluoride reactor.
In the figure: the device comprises a sulfuric acid discharge pipe fitting 10, a connecting piece 11, an acid adding vertical pipe 12, a sulfuric acid spray pipe 13, an acid spraying gap 131, a hydrogen fluoride reaction furnace 20, a washing tower 30, a tower body 31, a first filler 32, a second filler 33, a cyclone tower plate 34, a waste acid overflow trough 35 and a waste acid pump 36.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 and 2, the embodiment of the utility model provides a sulphuric acid is sour pipe fitting 10 down, including connecting piece 11, add sour standpipe 12, sulphuric acid spray tube 13, connecting piece 11 includes the second connector, the third connector, the fourth connector, sulphuric acid spray tube 13, add the equal vertical setting of sour standpipe 12, the upper end and the fourth connector connection of sour standpipe 12, the upper end of sulphuric acid spray tube 13 is used for letting in sulphuric acid, the lower extreme of sulphuric acid spray tube 13 is sealed, the outer wall that is close to the blind end at sulphuric acid spray tube 13 is equipped with spouts sour gap 131, spout sour gap 131 link up the rampart of sulphuric acid spray tube 13, spout sour gap 131 is along the axis direction of sulphuric acid spray tube 13, the spiral that forms on the rampart of sulphuric acid spray tube 13 stretches into connecting piece 11 from the second connector, the part that sulphuric acid spray tube 13 set up and spouts sour gap 131 stretches into in adding sour standpipe 12.
Of course, the outer diameter of the sulphuric acid lance 13 is smaller than the inner diameter of the second connection port and the inner diameter of the acidification standpipe 12.
Compared with the prior art, the beneficial effects of the utility model reside in that:
sulfuric acid in the sulfuric acid spray pipe 13 is sprayed into the acidification standpipe 12 from the acid spraying gap 131, a spiral sulfuric acid film is formed between the inner wall of the acidification standpipe 12 and the sulfuric acid spray pipe 13 by the sprayed sulfuric acid, and in the process that hydrogen fluoride containing dust particles is discharged from the acidification standpipe 12, the hydrogen fluoride needs to pass through one layer of sulfuric acid film, so that the dust particle removing effect is greatly improved compared with that of rain-like liquid drop sulfuric acid.
Referring to fig. 1 and 2, further, the connecting member 11 includes a first connecting port, and the first connecting port, the second connecting port, the third connecting port, and the fourth connecting port are uniformly distributed along the outer circumference of the connecting member 11 with the center of the connecting member 11 as the center of a circle.
Referring to fig. 1 and 2, the first interface cover further includes a cover.
Referring to fig. 1 and 2, further, the outer annular wall of the sulfuric acid nozzle 13 is hermetically connected to the second connection port.
Referring to fig. 1 and fig. 2, the embodiment of the present invention further provides a hydrogen fluoride reactor, which includes a hydrogen fluoride reactor 20 and a sulfuric acid discharge pipe 10, wherein a lower end of an acid adding standpipe 12 is connected to an acid adding port of the hydrogen fluoride reactor 20.
Referring to fig. 1 and 2, further, the hydrogen fluoride reactor further comprises a washing tower 30, and the third connection port is connected with the gas phase inlet of the washing tower 30.
Referring to fig. 1 and 2, further, the washing tower 30 includes a tower body 31, a first filler 32, a second filler 33, and a cyclone tray 34, and the first filler 32, the second filler 33, and the cyclone tray 34 are sequentially built in the tower body 31 from top to bottom.
Compared with the packing, the cyclone tray 34 has stronger capability of removing dust particles with large particle sizes, most of the dust particles are intercepted by the cyclone tray 34, the filtering amount of the dust particles of the first packing 32 and the second packing 33 is reduced, and the blocking condition of the first packing 32 or the second packing 33 is greatly reduced because the dust particles reaching the first packing 32 and the second packing 33 are mainly dust particles with small particle sizes.
Referring to fig. 1 and 2, further, the washing tower 30 further includes a waste acid overflow trough 35 and a waste acid pump 36, an inlet of the waste acid overflow trough 35 is communicated with a cavity between the bottom wall of the tower body 31 and the cyclone tray 34 in the tower body 31, an outlet of the waste acid overflow trough 35 is connected with an inlet of the waste acid pump 36, and an outlet of the waste acid pump 36 is communicated with a cavity between the second filler 33 and the cyclone tray 34 in the tower body 31.
Referring to fig. 1 and 2, further, the outlet of the waste acid pump 36 is communicated with the cavity between the first packing 32 and the second packing 33 in the tower body 31.
Referring to fig. 1 and 2, further, the outlet of the waste acid pump 36 communicates with the cavity between the top wall of the tower 31 and the first packing 32.
Of course, valves are provided in the piping between the waste acid pump 36 and the column 31.
Specifically, the gas phase inlet of the scrubber 30 communicates with a cavity in the column body 31 between the bottom wall of the column body 31 and the swirl trays 34.
The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A sulfuric acid pickling pipe fitting is characterized in that: the sulfuric acid spraying pipe and the acidification vertical pipe are vertically arranged, the upper end of the acidification vertical pipe is connected with the fourth connecting port, sulfuric acid is introduced into the upper end of the sulfuric acid spraying pipe, the lower end of the sulfuric acid spraying pipe is sealed, an acid spraying gap is arranged on the outer wall, close to the sealed end, of the sulfuric acid spraying pipe and penetrates through the annular wall of the sulfuric acid spraying pipe, the acid spraying gap is a spiral through gap formed in the annular wall of the sulfuric acid spraying pipe along the axial direction of the sulfuric acid spraying pipe, the lower end of the sulfuric acid spraying pipe extends into the connecting piece from the second connecting port, and the part, provided with the acid spraying gap, of the sulfuric acid spraying pipe extends into the acidification vertical pipe.
2. The piece of sulfuric acid downconversion tubing of claim 1, wherein: the connecting piece comprises a first connecting port, and the first connecting port, the second connecting port, the third connecting port and the fourth connecting port are uniformly distributed along the outer side circumference of the connecting piece by taking the center of the connecting piece as the circle center.
3. The piece of sulfuric acid downconversion tubing of claim 2, wherein: the first connecting port is covered with a cover body.
4. The piece of sulfuric acid downconversion according to claim 3, wherein: and the outer annular wall of the sulfuric acid spray pipe is hermetically connected with the second connecting port.
5. A hydrogen fluoride reactor, characterized by: comprises a hydrogen fluoride reaction furnace and the sulfuric acid discharge pipe fitting of claim 2, wherein the lower end of the acid adding vertical pipe is connected with an acid adding port of the hydrogen fluoride reaction furnace.
6. The hydrogen fluoride reactor of claim 5 wherein: the hydrogen fluoride reactor also comprises a washing tower, and the third connecting port is connected with a gas phase inlet of the washing tower.
7. The hydrogen fluoride reactor of claim 6 wherein: the washing tower comprises a tower body, a first filler, a second filler and a cyclone column plate, wherein the first filler, the second filler and the cyclone column plate are sequentially arranged in the tower body from top to bottom.
8. The hydrogen fluoride reactor of claim 7 wherein: the washing tower also comprises a waste acid overflow groove and a waste acid pump, wherein the inlet of the waste acid overflow groove is communicated with the cavity between the bottom wall of the tower body in the tower body and the rotational flow tower plate, the outlet of the waste acid overflow groove is connected with the inlet of the waste acid pump, and the outlet of the waste acid pump is communicated with the cavity between the second filler and the rotational flow tower plate in the tower body.
9. The hydrogen fluoride reactor of claim 8 wherein: and the outlet of the waste acid pump is communicated with a cavity between the first filler and the second filler in the tower body.
10. The hydrogen fluoride reactor of claim 9 wherein: and the outlet of the waste acid pump is communicated with a cavity between the top wall of the tower body and the first filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150527.4U CN214936055U (en) | 2021-05-27 | 2021-05-27 | Sulfuric acid discharge pipe fitting and hydrogen fluoride reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150527.4U CN214936055U (en) | 2021-05-27 | 2021-05-27 | Sulfuric acid discharge pipe fitting and hydrogen fluoride reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214936055U true CN214936055U (en) | 2021-11-30 |
Family
ID=79059582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121150527.4U Active CN214936055U (en) | 2021-05-27 | 2021-05-27 | Sulfuric acid discharge pipe fitting and hydrogen fluoride reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214936055U (en) |
-
2021
- 2021-05-27 CN CN202121150527.4U patent/CN214936055U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |