CN214344611U - A settling equipment for producing triethyl aluminium - Google Patents
A settling equipment for producing triethyl aluminium Download PDFInfo
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- CN214344611U CN214344611U CN202022524776.7U CN202022524776U CN214344611U CN 214344611 U CN214344611 U CN 214344611U CN 202022524776 U CN202022524776 U CN 202022524776U CN 214344611 U CN214344611 U CN 214344611U
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- pipe
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- insertion pipe
- cylinder body
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- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000926 separation method Methods 0.000 claims abstract description 52
- 238000003780 insertion Methods 0.000 claims abstract description 43
- 230000037431 insertion Effects 0.000 claims abstract description 43
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- 238000004062 sedimentation Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000010865 sewage Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims 3
- 239000000945 filler Substances 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 239000007787 solid Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006200 ethylation reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The application belongs to the field of chemical engineering, and relates to sedimentation equipment for producing triethylaluminum, which comprises more than two sedimentation separation tanks, wherein each sedimentation separation tank is connected with a feeding pipe for inputting rough triethylaluminum through a feeding branch pipe, and each sedimentation separation tank is connected with a discharging pipe for outputting rough triethylaluminum clear liquid through a discharging branch pipe; the sedimentation separation tank comprises a cylinder body with a separation cavity inside, a sewage discharge outlet is formed in the bottom of the cylinder body, the discharge branch pipe is at least connected with a bottom insertion pipe and a half insertion pipe, the bottom end of the bottom insertion pipe is located at the bottom of the cylinder body, the bottom end of the half insertion pipe is located in the middle of the cylinder body, and the upper ends of the bottom insertion pipe and the half insertion pipe are located outside the cylinder body and are respectively provided with an insertion pipe adjusting valve; and the feeding branch pipe and the discharging branch pipe are respectively provided with a feeding regulating valve and a discharging regulating valve. The utility model discloses there is not the design of built-in filler to reach the mesh of eliminating the shut down maintenance that produces because of blockking up.
Description
Technical Field
The utility model belongs to the chemical industry field relates to the production in the aluminium triethyl production, especially relates to a settlement equipment for producing aluminium triethyl.
Background
At present, two-step method is generally adopted to produce triethyl aluminum in China, and during production of triethyl aluminum, the produced triethyl aluminum reaction liquid contains aluminum powder, alumina and other impurities due to the oxidation of the aluminum powder, incomplete reaction of the aluminum powder and the like. In order to separate triethyl aluminum from impurities, the existing production process adopts rectification separation to rectify crude triethyl aluminum, the method can effectively separate triethyl aluminum from solids, but aluminum trihydride contained in the crude triethyl aluminum is easy to decompose in a packing layer with large specific surface area to generate solid aluminum oxide to be attached to the packing layer. After long-time operation, the packed tower is blocked by solid attachments, rectification cannot be normally carried out, and the packed tower needs to be cleaned.
The Chinese patent of patent publication No. CN101805363B discloses a continuous production method of triethyl aluminum, which is characterized by comprising the following process steps: 1) mixing the materials; 2) hydrogenation reaction; 3) hydrogen flash evaporation; 4) ethylation reaction; 5) recovering ethylene; 6) rectifying and collecting products. The invention has the advantages of continuous production, simple and convenient operation, high safety factor and high production effect, and the production time of the same batch of triethyl aluminum is shortened by about 10 percent compared with the production time of the traditional method.
Although the scheme can improve the utilization rate of wastes and reduce the production cost, the cleaning method adopted by the existing reaction equipment is generally manual cleaning in a tower, and the filler at the lower part of the tower is cleaned or replaced, so that the time and the labor are wasted, the operation in a limited space is involved, the operation is performed on fire, and the risk is higher.
Disclosure of Invention
The application aims to solve the problems and provide a settling device for producing triethyl aluminum;
in order to achieve the above purpose, the utility model adopts the following technical proposal:
the application creatively provides sedimentation equipment for producing triethylaluminum, which comprises more than two sedimentation separation tanks, wherein each sedimentation separation tank is connected with a feeding pipe for inputting crude triethylaluminum through a feeding branch pipe, and is connected with a discharging pipe for outputting crude triethylaluminum clear liquid through a discharging branch pipe;
the sedimentation separation tank comprises a cylinder body with a separation cavity inside, a sewage discharge outlet is formed in the bottom of the cylinder body, the discharge branch pipe is at least connected with a bottom insertion pipe and a half insertion pipe, the bottom end of the bottom insertion pipe is located at the bottom of the cylinder body, the bottom end of the half insertion pipe is located in the middle of the cylinder body, and the upper ends of the bottom insertion pipe and the half insertion pipe are located outside the cylinder body and are respectively provided with an insertion pipe adjusting valve;
and the feeding branch pipe and the discharging branch pipe are respectively provided with a feeding regulating valve and a discharging regulating valve.
In the above-mentioned sedimentation equipment for producing triethyl aluminum, the barrel bottom is the toper head, the toper head bottom is located to the drain.
In the above settling apparatus for producing triethylaluminum, the angle of the two side walls of the conical head at the vertical central section is 90 °.
In foretell a subside equipment for producing triethyl aluminum, the top of subside knockout drum is oval head, and this oval head is connected with rotary drive device, and rotary drive device's output shaft has the pivot of stretching into in the separation chamber, and the bottom of pivot is connected with the stirring leaf, and the bottom of pivot is located the upper portion of toper head.
In the above settling equipment for producing triethyl aluminum, the feeding branch pipe is connected with a feeding insertion pipe, and the feeding insertion pipe is hung on the inner wall of the barrel body through the first lug assembly.
In the above-mentioned sedimentation apparatus for producing triethylaluminum, the bottom end of the half cannula is located at a half position of the cylinder and above the stirring vane.
In the above-described settling apparatus for producing triethylaluminum, the inner diameters of the bottom cannula and the half cannula were both R1, and the inner diameter of the feed cannula was R2, R1: R2: 6: 1.
In the settling equipment for producing triethyl aluminum, the inner diameter of the barrel body is R3, the diameter of the stirring blade is R4, and the ratio of R3 to R4 is 3-2.8: 1.
In the above-mentioned sedimentation apparatus for producing triethylaluminum, the bottom end faces of the bottom cannula and the half cannula are arranged in the vertical direction.
In the above-mentioned sedimentation equipment for producing triethylaluminum, the bottom insertion pipe and the half insertion pipe are respectively hung on the inner wall of the cylinder body through the second lug assembly.
Compared with the prior art, the utility model has the advantages of:
1) the utility model discloses a combination of sedimentation tank carries out subsiding of impurity, need not reach triethyl aluminium and impurity solid-liquid separation's purpose through the rectifying column, does not have built-in filler design to reach the purpose of eliminating the maintenance of stopping production because of blockking up the production.
Each settling separation tank is connected in parallel between the feeding pipe and the discharging pipe, and can independently perform settling separation, so that the settling separation can be continuously performed, the continuity in the production process of triethyl aluminum is ensured, and the production efficiency is not influenced.
2) The bottom inserting pipe and the half inserting pipe can be matched to realize liquid emptying at different stages of solid-liquid separation.
Drawings
FIG. 1 is a process flow diagram provided herein.
Figure 2 is a block diagram of a settling tank as provided herein.
FIG. 3 is a schematic sectional view A-A provided herein.
In the figure, a settling separation tank 1, a cylinder 10, an insertion pipe regulating valve 101, a sewage draining outlet 11, a bottom insertion pipe 12, a second lug assembly 121, a half insertion pipe 13, a conical end enclosure 14, an elliptical end enclosure 1, a rotary driving device 16, a rotating shaft 161, a stirring blade 162, a feeding insertion pipe 17, a first lug assembly 171, a feeding branch pipe 2, a feeding regulating valve 20, a feeding pipe 3, a discharging branch pipe 4, a discharging regulating valve 40 and a discharging pipe 5.
Detailed Description
Further illustrated by the following specific examples;
as shown in FIG. 1, a settling apparatus for producing triethylaluminum comprises more than two settling separation tanks 1, each settling separation tank 1 is connected with a feeding pipe 3 for inputting crude triethylaluminum through a feeding branch pipe 2, and each settling separation tank 1 is connected with a discharging pipe 5 for outputting crude triethylaluminum clear liquid through a discharging branch pipe 4; the sedimentation separation tank 1 comprises a cylinder body 10 with a separation cavity inside, a sewage outlet 11 is arranged at the bottom of the cylinder body 10, a bottom inserting pipe 12 and a half inserting pipe 13 are at least connected with a discharge branch pipe 4, the upper ends of the bottom inserting pipe 12 and the half inserting pipe 13 are positioned outside the cylinder body 10 and are respectively provided with a regulating valve 101, and a feeding regulating valve 20 and a discharge regulating valve 40 are respectively arranged on a feeding branch pipe 2 and the discharge branch pipe 4. The impurities are settled through the combination of the settling separation tank 1, the aim of solid-liquid separation of triethyl aluminum and the impurities can be achieved without a rectifying tower, and the design of built-in fillers is avoided, so that the aim of production halt maintenance caused by blockage is fulfilled.
In particular, the number of settling tanks 1 in the settling device is set according to the amount of crude triethylaluminium obtained in the reaction stage. The settling equipment for producing triethylaluminum in this example consists of four settling separation tanks 1. Each settling separation tank 1 is connected in parallel between the feeding pipe 3 and the discharging pipe 5, and can independently perform settling separation, so that the settling separation can be continuously performed, the continuity in the production process of triethyl aluminum is ensured, and the production efficiency is not influenced.
As shown in figure 2, the bottom of the cylinder 10 is a conical seal head 14, and the sewage outlet 11 is arranged at the bottom end of the conical seal head 14. The angle of the two side walls of the conical head 14 in the vertical central section is 90 deg.. Namely, the included angles between the two side walls of the conical seal head 14 and the axis are respectively 45 degrees. Thereby enabling solid impurities to be effectively collected in the sewage discharge port 11 at the bottom end of the conical seal head 14 and avoiding the impurities from remaining in the cylinder 10.
The top of the settling separation tank 1 is an elliptical seal head 15, the elliptical seal head 15 is connected with a rotary driving device 16, an output shaft of the rotary driving device 16 is connected with a rotating shaft 161 extending into the separation cavity, the bottom end of the rotating shaft 161 is connected with a stirring blade 162, the axis of the rotating shaft 161 is overlapped with the axis of the cylinder 10, and the bottom end of the rotating shaft 161 is positioned at the upper part of the conical seal head 14. The rotation driving device 16 is preferably a rotary motor, and the stirring blade 162 can stir and mix the residue near the sewage draining outlet 11 by rotating.
The feeding branch pipe 2 is connected with a feeding insertion pipe 17, and the feeding insertion pipe 17 is suspended on the inner wall of the barrel 10 through a first lug assembly 171. The bottom end of the feed cannula 17 is located at the bottom of the barrel 10. Bottom cannula 12 and half cannula 13 are suspended from the interior wall of barrel 10 by second lug assembly 121. The bottom end of the bottom cannula 12 is located at the bottom of the barrel 10 and the bottom end of the half cannula 13 is located in the middle of the barrel 10. Specifically, the bottom end of the half cannula 13 is located at a half position of the cylinder 10 and above the stirring blade 162. The bottom cannula 12 and the half cannula 13 can cooperate to achieve liquid evacuation at different stages of solid-liquid separation.
The inner diameter of the barrel body 10 is R3, the diameter of the stirring blade 162 is R4, and the ratio of R3 to R4 is 3-2.8: 1. The specific ratio of the stirring blade 162 to the barrel 10 enables better mixing during rotation.
The bottom end faces of the bottom inserting pipe 12 and the half inserting pipe 13 are arranged along the vertical direction, so that solid impurities are prevented from being sucked, and the precision of solid-liquid separation is improved.
As shown in fig. 2 and 3, the first and second lug assemblies 171 and 121 include a plurality of lugs, each of which is a U-shaped fixing member 172 having a concave portion fitting with the bottom insert pipe 12, the half insert pipe 13 or the feeding insert pipe 17, the concave portion of the U-shaped fixing member 172 abuts against one side of the bottom insert pipe 12, the half insert pipe 13 or the feeding insert pipe 17, and both ends of the U-shaped fixing member 172 are respectively welded to the inner wall of the barrel 10 through bent portions. The bottom cannula 12, the half cannula 13 or the feeding cannula 17 can be effectively suspended on the inner wall of the cylinder 10, and a certain gap is formed between the bottom cannula 12, the half cannula 13 or the feeding cannula 17 and the inner wall of the cylinder 10. Meanwhile, the potential safety hazard caused by the fact that the pipeline is directly fixed on the inner wall under the shaking operation condition is also avoided.
The working principle of the utility model is as follows:
crude triethyl aluminum containing aluminum powder, aluminum oxide and other impurities from the reaction kettle enters the settling equipment, the feeding regulating valve 20 of the first settling separation tank 1 is firstly opened, when the liquid level in the settling separation tank 1 reaches a set height, the feeding regulating valve 20 of the first settling separation tank 1 is closed, the feeding regulating valves 20 of the second settling separation tank 1, the third settling separation tank and the fourth settling separation tank 1 are sequentially started, settling separation operation is orderly carried out, when the liquid level in the fourth settling separation tank 1 reaches the set height, the material which is emptied from the previous time in the first settling separation tank 1 can be restarted, and the feeding regulating valve 20 can be restarted to receive the crude triethyl aluminum.
The settling process in each settling separation tank 1 is: the rotating shaft 161 is driven by the rotating driving device 16 to rotate the stirring blade 162, and impurities such as aluminum powder and alumina contained in the crude triethyl aluminum are settled within a fixed time under the action of gravity; after the sedimentation is finished, discharging the clean crude triethyl aluminum clarified liquid at the upper part to a subsequent process through a half insertion pipe 13, discharging the accumulated residue containing impurities such as aluminum powder, aluminum oxide and the like at the lower part of the sedimentation separation tank 1 to a residue treatment system through a sewage outlet 11 for treatment, closing the insertion pipe regulating valve 101 of the half insertion pipe 13 when the liquid level is reduced to be lower than the bottom end position of the half insertion pipe 13 and the residue height is lower than the bottom end position of the bottom insertion pipe 12 or after the residue is discharged completely, starting the insertion pipe regulating valve 101 of the bottom insertion pipe 12, and discharging the residual crude triethyl aluminum clarified liquid.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms sedimentation separation tank 1, cylinder 10, insert pipe regulating valve 101, sewage drain 11, bottom insert pipe 12, second lug assembly 121, half insert pipe 13, conical head 14, elliptical head 15, rotary drive 16, rotary shaft 161, stirring blade 162, feed insert pipe 17, first lug assembly 171, feed branch pipe 2, feed regulating valve 20, feed pipe 3, discharge branch pipe 4, discharge regulating valve 40, discharge pipe 5, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. A settling equipment for producing triethyl aluminum, which is characterized in that: the device comprises more than two settling separation tanks (1), wherein each settling separation tank (1) is connected with a feeding pipe (3) for inputting crude triethylaluminum through a feeding branch pipe (2), and each settling separation tank (1) is connected with a discharging pipe (5) for outputting crude triethylaluminum clear liquid through a discharging branch pipe (4); the sedimentation separation tank (1) comprises a cylinder body (10) with a separation cavity inside, a sewage discharge outlet (11) is formed in the bottom of the cylinder body (10), the discharge branch pipe (4) is at least connected with a bottom insertion pipe (12) and a half insertion pipe (13), the bottom end of the bottom insertion pipe (12) is located at the bottom of the cylinder body (10), the bottom end of the half insertion pipe (13) is located in the middle of the cylinder body (10), and the upper ends of the bottom insertion pipe (12) and the half insertion pipe (13) are located outside the cylinder body (10) and are respectively provided with an insertion pipe adjusting valve (101);
and the feeding branch pipe (2) and the discharging branch pipe (4) are respectively provided with a feeding regulating valve (20) and a discharging regulating valve (40).
2. A settling apparatus for the production of triethylaluminum according to claim 1, wherein: the bottom of the barrel (10) is a conical seal head (14), and the sewage draining outlet (11) is arranged at the bottom end of the conical seal head (14).
3. A settling apparatus for the production of triethylaluminum according to claim 2, wherein: the angle of two side walls of the conical seal head (14) on the vertical central section is 90 degrees.
4. A settling apparatus for the production of triethylaluminum according to claim 2, wherein: the top of the settling separation tank (1) is an elliptical sealing head (15), the elliptical sealing head (15) is connected with a rotary driving device (16), an output shaft of the rotary driving device (16) is connected with a rotating shaft (161) extending into the separation cavity, the bottom end of the rotating shaft (161) is connected with a stirring blade (162), and the bottom end of the rotating shaft (161) is located on the upper portion of the conical sealing head (14).
5. A settling apparatus for the production of triethylaluminum according to claim 1, wherein: the feeding branch pipe (2) is connected with a feeding insertion pipe (17), and the feeding insertion pipe (17) is hung on the inner wall of the cylinder body (10) through a first lug assembly (171).
6. A settling device for the production of triethylaluminum according to claim 4, wherein: the bottom end of the half insertion pipe (13) is positioned at the half position of the cylinder body (10) and is positioned above the stirring blade (162).
7. A settling device for the production of triethylaluminum according to claim 5, wherein: the inner diameters of the bottom inserting pipe (12) and the half inserting pipe (13) are both R1, and the inner diameter of the feeding inserting pipe (17) is R2, R1: R2: 6: 1.
8. A settling device for the production of triethylaluminum according to claim 6, wherein: the inner diameter of the barrel body (10) is R3, the diameter of the stirring blade (162) is R4, and the ratio of R3 to R4 is 3-2.8: 1.
9. A settling apparatus for the production of triethylaluminum according to claim 1, wherein: the bottom end faces of the bottom insertion pipe (12) and the half insertion pipe (13) are arranged along the vertical direction.
10. A settling apparatus for the production of triethylaluminum according to claim 1, wherein: the bottom inserting pipe (12) and the half inserting pipe (13) are hung on the inner wall of the cylinder body (10) through the second lug assembly (121) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524776.7U CN214344611U (en) | 2020-11-04 | 2020-11-04 | A settling equipment for producing triethyl aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022524776.7U CN214344611U (en) | 2020-11-04 | 2020-11-04 | A settling equipment for producing triethyl aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214344611U true CN214344611U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022524776.7U Active CN214344611U (en) | 2020-11-04 | 2020-11-04 | A settling equipment for producing triethyl aluminium |
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| Country | Link |
|---|---|
| CN (1) | CN214344611U (en) |
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- 2020-11-04 CN CN202022524776.7U patent/CN214344611U/en active Active
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