CN205241577U - Hexamethyldisilazane's alkaline cleaner - Google Patents
Hexamethyldisilazane's alkaline cleaner Download PDFInfo
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- CN205241577U CN205241577U CN201520924008.7U CN201520924008U CN205241577U CN 205241577 U CN205241577 U CN 205241577U CN 201520924008 U CN201520924008 U CN 201520924008U CN 205241577 U CN205241577 U CN 205241577U
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- caustic soda
- liquid caustic
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Abstract
The utility model relates to a chemical industry washes with alkaline the equipment field, discloses a hexamethyldisilazane's alkaline cleaner, including washing with alkaline cauldron (1), be equipped with agitating unit (2) in washing with alkaline the cauldron, be equipped with feed arrangement (3) on the alkali cleaning cauldron, wash with alkaline the cauldron bottom and be equipped with liquid caustic soda discharge gate (4), be equipped with on the alkali cleaning cauldron lateral wall hexamethyldisilazane overflow mouth (5). Feed arrangement includes hexamethyldisilazane inlet pipe (31), liquid caustic soda inlet pipe (32), collecting pipe (33), hexamethyldisilazane inlet pipe and liquid caustic soda inlet pipe respectively with the upper end of collecting pipe intercommunication, the lower extreme of collecting pipe is equipped with ripple silk screen filler (34), the alkali discharge gate passes through circulating pipe (6) intercommunication with the liquid caustic soda inlet pipe, be equipped with circulating pump (7) on the circulating pipe. The utility model discloses an alkaline cleaner can make hexamethyldisilazane and buck intensive mixing, effectively gets rid of the impurity among the hexamethyldisilazane.
Description
Technical field
The utility model relates to chemical industry alkali cleaning apparatus field, relates in particular to a kind of alkaline cleaner of HMDS.
Background technology
The logical ammonia aminolysis reaction of trim,ethylchlorosilane is produced in HMDS process, and after reaction finishes, after reaction compound is isolated ammonium chloride, the product HMDS crude product obtaining needs further alkali cleaning. Because HMDS is organic matter, be insoluble to buck, very easily with buck layering, the conventional alkali washing process that stirs can not effectively be removed wherein impurity.
Application number is the separator that 201120389914.3 Chinese patent discloses a kind of HMDS production use, the synthesis reactor of this device is provided with freezing return piping and freezing water-line, synthesis reactor is connected with link-suspended basket centrifuge, link-suspended basket centrifuge with in be connected with still; In and still be provided with liquid caustic soda pipeline, refining pipeline and sewer line. Adopt this utility model can be under airtight centrifugal condition, the ammonium chloride in mixed liquor is separated, thereby reduce time and the consumption of buck neutralization. Thereby improve the yield of HMDS.
But the separator of this patent improves yield by separating ammonium chloride, and also in the alkaline cleaning procedure of unresolved HMDS, easily separate with buck, can not effectively go deimpurity technical problem.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of alkaline cleaner of HMDS. Alkaline cleaner of the present utility model can make HMDS fully mix with buck, effectively removes the impurity in HMDS.
Concrete technical scheme of the present utility model is: a kind of alkaline cleaner of HMDS, comprise alkali cleaning still, in described alkali cleaning still, be provided with agitating device, alkali cleaning still is provided with feed arrangement, alkali cleaning still bottom is provided with liquid caustic soda discharging opening, and alkali cleaning still sidewall is provided with HMDS overfall. Described feed arrangement comprises HMDS feed pipe, liquid caustic soda feed pipe, collecting pipe, described HMDS feed pipe and liquid caustic soda feed pipe are communicated with the upper end of collecting pipe respectively, the lower end of described collecting pipe is provided with ripple silk net filler, described alkali discharging opening is communicated with by circulation pipe with liquid caustic soda feed pipe, and described circulation pipe is provided with circulating pump.
Operation principle of the present utility model is: in alkali cleaning still, add part liquid caustic soda, open alkali cleaning still agitating device, liquid caustic soda is got to liquid caustic soda feed pipe by circulating pump from alkali cleaning still bottom, so circulation. The thick product of HMDS enters from HMDS feed pipe, and the thick product of liquid caustic soda and HMDS confluxes at collecting pipe. Then pass through ripple silk net filler, increase time of contact and the area of liquid caustic soda and the thick product of HMDS, more effectively remove impurity residual, can rapid layering after in product introduction alkali cleaning still after alkali cleaning, HMDS overflows from HMDS overfall.
As preferably, the caliber of described HMDS feed pipe is greater than the caliber of liquid caustic soda feed pipe, and HMDS feed pipe is placed on outside liquid caustic soda feed pipe, HMDS feed pipe lower end is lower than liquid caustic soda feed pipe lower end, and HMDS feed pipe upper end is lower than liquid caustic soda feed pipe upper end.
HMDS feed pipe is placed on outside liquid caustic soda feed pipe, and due to the circulation of liquid caustic soda, the middle epimere of HMDS feed pipe can form negative pressuren zone, and this makes the thick product feeding pipe circulation of HMDS very smooth and easy, can blocking pipe.
As preferably, described collecting pipe vertically arranges and the stage casing of collecting pipe is torrent section, and the caliber of described torrent section is less than the caliber of collecting pipe epimere and collecting pipe hypomere, and the caliber of collecting pipe epimere is less than the caliber of HMDS feed pipe.
The setting of torrent section, can accelerate the flow velocity of liquid, further strengthens the vacuum of negative pressuren zone.
As preferably, the bottom of described alkali cleaning still is liquid caustic soda layer, and the top of described liquid caustic soda layer is HMDS layer, and collecting pipe lower end is positioned at described HMDS layer, and described agitating device is positioned at described liquid caustic soda layer.
As preferably, described HMDS overfall overfall is positioned at HMDS layer, and HMDS overfall is positioned at the offside of feed arrangement.
HMDS overfall and feed arrangement select diagonal position to install, and are not with buck while making product overflow, facilitate next step product to purify.
Be compared with the prior art, the beneficial effects of the utility model are: alkaline cleaner of the present utility model can make HMDS fully mix with buck, effectively removes the impurity in HMDS.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Reference numeral is: alkali cleaning still 1, agitating device 2, feed arrangement 3, liquid caustic soda discharging opening 4, HMDS overfall 5, circulation pipe 6, circulating pump 7, negative pressuren zone 8, liquid caustic soda layer 11, HMDS layer 12, HMDS feed pipe 31, liquid caustic soda feed pipe 32, collecting pipe 33, ripple silk net filler 34, torrent section 331.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described. Related device, syndeton and method in the utility model, if without refering in particular to, be device well known in the art, syndeton and method.
Embodiment 1
As shown in Figure 1: a kind of alkaline cleaner of HMDS, comprise alkali cleaning still 1, in described alkali cleaning still, be provided with agitating device 2, alkali cleaning still is provided with feed arrangement 3, alkali cleaning still bottom is provided with liquid caustic soda discharging opening 4, and alkali cleaning still sidewall is provided with HMDS overfall 5. Described feed arrangement comprises HMDS feed pipe 31, liquid caustic soda feed pipe 32, collecting pipe 33, described HMDS feed pipe and liquid caustic soda feed pipe are communicated with the upper end of collecting pipe respectively, the lower end of described collecting pipe is provided with ripple silk net filler 34, described alkali discharging opening is communicated with by circulation pipe 5 with liquid caustic soda feed pipe, and described circulation pipe is provided with circulating pump 6.
Wherein, the caliber of described HMDS feed pipe is greater than the caliber of liquid caustic soda feed pipe, and HMDS feed pipe is placed on outside liquid caustic soda feed pipe, HMDS feed pipe lower end is lower than liquid caustic soda feed pipe lower end, and HMDS feed pipe upper end is lower than liquid caustic soda feed pipe upper end. Described collecting pipe vertically arranges and the stage casing of collecting pipe is torrent section 331, and the caliber of described torrent section is less than the caliber of collecting pipe epimere and collecting pipe hypomere, and the caliber of collecting pipe epimere is less than the caliber of HMDS feed pipe.
The bottom of described alkali cleaning still is liquid caustic soda layer 11, and the top of described liquid caustic soda layer is HMDS layer 12, and collecting pipe lower end is positioned at described HMDS layer, and described agitating device is positioned at described liquid caustic soda layer. Described HMDS overfall overfall is positioned at HMDS layer, and HMDS overfall is positioned at the offside of feed arrangement.
When work, add part liquid caustic soda in alkali cleaning still, open alkali cleaning still agitating device, liquid caustic soda is got to liquid caustic soda feed pipe by circulating pump from alkali cleaning still bottom, so circulation. The thick product of HMDS enters from HMDS feed pipe, due to the circulation of liquid caustic soda, the middle epimere of HMDS feed pipe can form negative pressuren zone 8, and this makes the thick product feeding pipe circulation of HMDS very smooth and easy, can blocking pipe. The thick product of liquid caustic soda and HMDS confluxes at collecting pipe, and the setting of torrent section can be accelerated the flow velocity of liquid, further strengthens the vacuum of negative pressuren zone. Then pass through ripple silk net filler, increase time of contact and the area of liquid caustic soda and the thick product of HMDS, more effectively remove impurity residual, can rapid layering after in product introduction alkali cleaning still after alkali cleaning, HMDS overflows from HMDS overfall.
Embodiment 2
An alkaline cleaner for HMDS, comprises alkali cleaning still 1, in described alkali cleaning still, is provided with agitating device 2, and alkali cleaning still is provided with feed arrangement 3, and alkali cleaning still bottom is provided with liquid caustic soda discharging opening 4, and alkali cleaning still sidewall is provided with HMDS overfall 5. Described feed arrangement comprises HMDS feed pipe 31, liquid caustic soda feed pipe 32, collecting pipe 33, described HMDS feed pipe and liquid caustic soda feed pipe are communicated with the upper end of collecting pipe respectively, the lower end of described collecting pipe is provided with ripple silk net filler 34, described alkali discharging opening is communicated with by circulation pipe 5 with liquid caustic soda feed pipe, and described circulation pipe is provided with circulating pump 6.
Wherein, the caliber of described HMDS feed pipe is greater than the caliber of liquid caustic soda feed pipe, and HMDS feed pipe is placed on outside liquid caustic soda feed pipe, HMDS feed pipe lower end is lower than liquid caustic soda feed pipe lower end, and HMDS feed pipe upper end is lower than liquid caustic soda feed pipe upper end. The bottom of described alkali cleaning still is liquid caustic soda layer 11, and the top of described liquid caustic soda layer is HMDS layer 12, and collecting pipe lower end is positioned at described HMDS layer, and described agitating device is positioned at described liquid caustic soda layer. Described HMDS overfall overfall is positioned at HMDS layer, and HMDS overfall is positioned at the offside of feed arrangement.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs to the protection domain of technical solutions of the utility model.
Claims (5)
1. the alkaline cleaner of a HMDS, comprise alkali cleaning still (1), in described alkali cleaning still, be provided with agitating device (2), alkali cleaning still is provided with feed arrangement (3), alkali cleaning still bottom is provided with liquid caustic soda discharging opening (4), alkali cleaning still sidewall is provided with HMDS overfall (5), it is characterized in that: described feed arrangement comprises HMDS feed pipe (31), liquid caustic soda feed pipe (32), collecting pipe (33), described HMDS feed pipe and liquid caustic soda feed pipe are communicated with the upper end of collecting pipe respectively, the lower end of described collecting pipe is provided with ripple silk net filler (34), described alkali discharging opening is communicated with by circulation pipe (6) with liquid caustic soda feed pipe, described circulation pipe is provided with circulating pump (7).
2. the alkaline cleaner of a kind of HMDS as claimed in claim 1, it is characterized in that, the caliber of described HMDS feed pipe is greater than the caliber of liquid caustic soda feed pipe, and HMDS feed pipe is placed on outside liquid caustic soda feed pipe, HMDS feed pipe lower end is lower than liquid caustic soda feed pipe lower end, and HMDS feed pipe upper end is lower than liquid caustic soda feed pipe upper end.
3. the alkaline cleaner of a kind of HMDS as claimed in claim 2, it is characterized in that, described collecting pipe vertically arranges and the stage casing of collecting pipe is torrent section (331), the caliber of described torrent section is less than the caliber of collecting pipe epimere and collecting pipe hypomere, and the caliber of collecting pipe epimere is less than the caliber of HMDS feed pipe.
4. the alkaline cleaner of a kind of HMDS as described in one of claim 1-3, it is characterized in that, the bottom of described alkali cleaning still is liquid caustic soda layer (11), the top of described liquid caustic soda layer is HMDS layer (12), collecting pipe lower end is positioned at described HMDS layer, and described agitating device is positioned at described liquid caustic soda layer.
5. the alkaline cleaner of a kind of HMDS as claimed in claim 4, is characterized in that, described HMDS overfall overfall is positioned at HMDS layer, and HMDS overfall is positioned at the offside of feed arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924008.7U CN205241577U (en) | 2015-11-18 | 2015-11-18 | Hexamethyldisilazane's alkaline cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924008.7U CN205241577U (en) | 2015-11-18 | 2015-11-18 | Hexamethyldisilazane's alkaline cleaner |
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| Publication Number | Publication Date |
|---|---|
| CN205241577U true CN205241577U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520924008.7U Active CN205241577U (en) | 2015-11-18 | 2015-11-18 | Hexamethyldisilazane's alkaline cleaner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442061A (en) * | 2020-12-08 | 2021-03-05 | 江西贝特利新材料有限公司 | Silazane water washing method |
| CN114432985A (en) * | 2022-02-18 | 2022-05-06 | 内蒙古恒星化学有限公司 | Method and system for discharging waste alkali liquor in organic silicon production |
-
2015
- 2015-11-18 CN CN201520924008.7U patent/CN205241577U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442061A (en) * | 2020-12-08 | 2021-03-05 | 江西贝特利新材料有限公司 | Silazane water washing method |
| CN114432985A (en) * | 2022-02-18 | 2022-05-06 | 内蒙古恒星化学有限公司 | Method and system for discharging waste alkali liquor in organic silicon production |
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