CN104740964A - Recycling system containing 'Si-O' link body and recycling method - Google Patents
Recycling system containing 'Si-O' link body and recycling method Download PDFInfo
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- CN104740964A CN104740964A CN201510097894.5A CN201510097894A CN104740964A CN 104740964 A CN104740964 A CN 104740964A CN 201510097894 A CN201510097894 A CN 201510097894A CN 104740964 A CN104740964 A CN 104740964A
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Abstract
The invention discloses a recycling system containing a 'Si-O' link body and a recycling method. The recycling system containing the 'Si-O' link body comprises a condenser, a backflow pump, a backflow tank, a separator and a vacuum machine unit, wherein an outlet end of the condenser is communicated with an inlet of the backflow tank; a gas outlet end of the backflow tank is communicated with an inlet end of the separator; a gas outlet end of the separator is communicated with an inlet end of the vacuum machine unit; a liquid outlet end of the separator is communicated with an inlet of the backflow pump; an outlet end of the vacuum machine unit is communicated with the atmosphere; a liquid outlet end of the separator is communicated with an inlet of the backflow pump. Because a link body trap is adopted, the link body recycling system provided for the application can effectively recycle the link body, improve the total recycling rate of the link body, reduce the work load for recycling the link body by the vacuum machine unit, and relieve the pollution to the environment.
Description
Technical field
The present invention relates to organosilicon and prepare silicone art, be specifically related to a kind of recovery system containing " Si-O " chain ring body and recovery method.
Background technology
Current organosilicon industry market economy is prosperous not, major part organic silicon monomer enterprise just focuses on the innovation transformation of some emphasis and key position, on the contrary some detailed problems are paid little attention to, as monomer synthesize give up screenings process waste, the chloromethanes composition that synthesis tail gas emptying is taken out of and low boiling monomer component etc., for another example the siloxanes taken out of with efflux wastewater of water-splitting unit, (ring body is methylic " Si-O " chain silicone cyclic body to the ring body taken out of of vacuum pump set emptying, generally comprise the annular material of D3-D7) etc., above situation all can cause the loss of material to waste, although instant drag-out is very little, but long term accumulation, also low conversion rate can be caused, product yield is low, thus affect production cost.For Vehicles Collected from Market dog-eat-dog, the situation that industry profit space is little, everybody more needs to focus on meticulous running, grabs details, aspires for stability, and improves feed stock conversion and product yield.It is reported that organosilicon cracking unit vacuum pump set takes ring body amount out of larger, cause waste loss, a lot of company also demand rationally effectively solves processing method, such as by reducing condenser temperature, make the condensation of ring body material reclaim as far as possible, take ring body content in vacuum gas out of and reduce, but according to material characteristic, temperature can not be too low, otherwise can cause ring body material Crystallization Plugging equipment pipe; Moreover, because vacuum system gas flow rate is very fast, also cause ring body entrainment more.In addition, a lot of producer considers to be reclaimed by ring body at vacuum pump set work tank, but because of equipment pipe problem of materials and the impact of vacuum pump set band oil etc., reclaim impurity in the ring body obtained more, the system that cannot be recycled to directly utilizes, even if after major part producer reclaims, also as waste material process at a low price.For above situation, we takes ring body out of from vacuum pump set and causes waste, affects ring body total recovery and considers, develop the device and method of a set of effective recovery cracking ring body, reclaim the ring body that vacuum system tape goes out, and decreases ring body waste, improves product yield.
Summary of the invention
The object of this invention is to provide a kind of recovery system containing " Si-O " chain ring body and recovery method, this ring body recovery system effectively can reclaim ring body, decreases ring body waste.
For achieving the above object, technical scheme of the present invention is:
A kind of recovery system containing " Si-O " chain ring body, comprise condenser, reflux pump, return tank, separator and vacuum pump set, wherein, the port of export of described condenser communicates with the entrance of described return tank, described return tank gas outlet end is communicated with the arrival end of described separator, the gas outlet end of described separator is communicated with the arrival end of described vacuum pump set, the liquid outlet end of described separator communicates with the entrance of described reflux pump, the port of export of described vacuum pump set is communicated with air, and the liquid outlet end of described separator communicates with the entrance of described reflux pump.
Preferably, the inside of described separator is provided with ring body trap.
A kind of recovery method containing " Si-O " chain ring body, step is as follows: the mist going out return tank tangentially enters separator, partial drop reclaims through cyclonic separation in separator, the ring body trap condensing trapping of unsegregated mist again in separator reclaims, and the ring body in on-condensible gas enters air after vacuum pump set reclaims again.
Preferably, the temperature of described ring body trap is 0-30 DEG C.
Preferably, the temperature of described ring body trap is 5-20 DEG C.
Preferably, the refrigerant of described ring body trap is lithium bromide water solution.
Preferably, described ring body trap adopts tangential way charging.Tangential feed is advantageously in gas-liquid separation.
Former design cycle is that ring body is recovered to return tank after condensation, and uncooled ring body and on-condensible gas bring vacuum pump set into through vacuum pipeline, air is entered again by vacuum pump set, so have a large amount of ring bodies and cause waste, namely enablely in vacuum pump set, reclaim a part of ring body, this part also can cause ring body material to pollute because bringing impurity into.For realizing effectively reclaiming ring body, the present invention adopts following technical proposals: the vacuum pipeline exporting to vacuum pump set at recycling can sets up a set of ring body retracting device, be pooled to by the ring body liquid reclaimed under return tank and liquid pipe is directly recycled to system, the ring body do not reclaimed and fixed gas put into air by vacuum pump set again.
Advantageous Effects of the present invention is:
The ring body recovery system that the application adopts, owing to have employed ring body trap, so effectively can reclaim ring body, improves the overall recovery of ring body, and can reduce the workload that vacuum pump set reclaims ring body.
Accompanying drawing explanation
Fig. 1 is flow circuit diagram of the present invention.
Wherein, 1, condenser, 2, return tank, 3, separator, 4, vacuum pump set, 5, air, 6, reflux pump.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1:
As shown in Figure 1, a kind of recovery system containing " Si-O " chain ring body, comprise condenser 1, reflux pump 6, return tank 2, separator 3 and vacuum pump set 4, wherein, the port of export of described condenser 1 communicates with the entrance of described return tank 2, described return tank 2 gas outlet end is communicated with the arrival end of described separator 3, the gas outlet end of described separator 3 is communicated with the arrival end of described vacuum pump set 4, the liquid outlet end of described separator 3 communicates with the entrance of described reflux pump 6, the port of export of described vacuum pump set 4 is communicated with air 5, the liquid outlet end of described separator 3 communicates with the entrance of described reflux pump 6.The inside of described separator 3 is provided with ring body trap.
A kind of recovery method containing " Si-O " chain ring body, step is as follows: the mist going out return tank 2 tangentially enters separator 3, partial drop reclaims through cyclonic separation in separator 3, unsegregated mist reclaims through ring body trap (being built in separator 3) condensing trapping again, and the ring body in on-condensible gas enters air 5 after vacuum pump set 4 reclaims again.
The fluid temperature of described condensator outlet controls at 20 DEG C, and the temperature of described ring body trap is 15 DEG C.The refrigerant of described ring body trap is lithium bromide water solution.Described separator adopts tangential feed.Tangential feed is advantageously in gas-liquid separation.
The system and method for the application and the ring body of original method is used to reclaim contrast situation in table 1:
Table 1
Embodiment 2:
Other parameters are all identical with embodiment 1, and changing described condensator outlet fluid temperature is 40 DEG C, and described ring body trap temperature is 15 DEG C.
The system and method for the application and the ring body of original method is used to reclaim contrast situation in table 2:
Table 2
From table 1 and table 2, the ring body recovery system that the application adopts, owing to have employed ring body trap, so effectively can reclaim ring body, improves the overall recovery of ring body, and can reduce the workload that vacuum pump set reclaims ring body.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but the restriction not to invention protection domain; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still in protection scope of the present invention.
Claims (7)
1. the recovery system containing " Si-O " chain ring body, it is characterized in that: comprise condenser, reflux pump, return tank, separator and vacuum pump set, wherein, the port of export of described condenser communicates with the entrance of described return tank, described return tank gas outlet end is communicated with the arrival end of described separator, the gas outlet end of described separator is communicated with the arrival end of described vacuum pump set, the liquid outlet end of described separator communicates with the entrance of described reflux pump, the port of export of described vacuum pump set is communicated with air, the liquid outlet end of described separator communicates with the entrance of described reflux pump.
2. recovery system according to claim 1, is characterized in that: the inside of described separator is provided with ring body trap.
3. the recovery method containing " Si-O " chain ring body, step is as follows: the mist going out return tank tangentially enters separator, partial drop reclaims through cyclonic separation in separator, the ring body trap condensing trapping of unsegregated mist again in separator reclaims, and the ring body in on-condensible gas enters air after vacuum pump set reclaims again.
4. recovery method according to claim 3, is characterized in that: the temperature of described ring body trap is 0-30 DEG C.
5. recovery method according to claim 4, is characterized in that: the temperature of described ring body trap is 5-20 DEG C.
6., according to the arbitrary described recovery method of claim 3-5, it is characterized in that: the refrigerant of described ring body trap is lithium bromide water solution.
7. recovery method according to claim 6, is characterized in that: described separator adopts tangential way charging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510097894.5A CN104740964A (en) | 2015-03-05 | 2015-03-05 | Recycling system containing 'Si-O' link body and recycling method |
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| CN201510097894.5A CN104740964A (en) | 2015-03-05 | 2015-03-05 | Recycling system containing 'Si-O' link body and recycling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265956A (en) * | 2018-12-04 | 2020-06-12 | 住友电气工业株式会社 | Exhaust device and exhaust method |
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| CN201899898U (en) * | 2010-12-08 | 2011-07-20 | 湖北江钻天祥化工有限公司 | Exhaust gas treatment device for synthesis of trichlorosilane |
| CN102921570A (en) * | 2011-08-12 | 2013-02-13 | 上海宝钢化工有限公司 | Gas-liquid separator with internal condensation |
| CN202823010U (en) * | 2012-10-15 | 2013-03-27 | 山东济炼石化工程有限公司 | Device for reducing oil content in solvent gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3892550A (en) * | 1973-07-06 | 1975-07-01 | Seco Tools Ab | Apparatus for separating condensation of wax from gas |
| CN201320414Y (en) * | 2008-12-18 | 2009-10-07 | 焦作健康元生物制品有限公司 | 7-aminocephalosporanic acid solvent recovery unit |
| CN101747340A (en) * | 2008-12-18 | 2010-06-23 | 焦作健康元生物制品有限公司 | Recovery process of 7-aminocephalosporanic acid solvent |
| CN201899898U (en) * | 2010-12-08 | 2011-07-20 | 湖北江钻天祥化工有限公司 | Exhaust gas treatment device for synthesis of trichlorosilane |
| CN102921570A (en) * | 2011-08-12 | 2013-02-13 | 上海宝钢化工有限公司 | Gas-liquid separator with internal condensation |
| CN202823010U (en) * | 2012-10-15 | 2013-03-27 | 山东济炼石化工程有限公司 | Device for reducing oil content in solvent gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111265956A (en) * | 2018-12-04 | 2020-06-12 | 住友电气工业株式会社 | Exhaust device and exhaust method |
| CN111265956B (en) * | 2018-12-04 | 2023-02-03 | 住友电气工业株式会社 | Exhaust device and exhaust method |
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