CN105664540A - Novel vacuum defoaming process for feed liquid - Google Patents

Novel vacuum defoaming process for feed liquid Download PDF

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Publication number
CN105664540A
CN105664540A CN201610200224.6A CN201610200224A CN105664540A CN 105664540 A CN105664540 A CN 105664540A CN 201610200224 A CN201610200224 A CN 201610200224A CN 105664540 A CN105664540 A CN 105664540A
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CN
China
Prior art keywords
vacuum
feed liquid
vacuum tank
feed
liquid
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.)
Pending
Application number
CN201610200224.6A
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Chinese (zh)
Inventor
吴家兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Yimeijia Epoxy Co ltd
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Shenzhen Yimeijia Epoxy Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Yimeijia Epoxy Co ltd filed Critical Shenzhen Yimeijia Epoxy Co ltd
Priority to CN201610200224.6A priority Critical patent/CN105664540A/en
Publication of CN105664540A publication Critical patent/CN105664540A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/02Foam dispersion or prevention
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J163/00Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Abstract

A vacuum defoaming process for liquid includes such steps as pumping the liquid in vacuum tank to high vacuum state by vacuum pump, opening feeding valve, sucking the liquid in liquid container to feeding hose by negative pressure in vacuum tank, controlling the opening of feeding valve, passing the liquid through screen in discharging tube, and spraying it to vacuum tank Chemical synthesis and the like.

Description

A kind of vacuum defoamation technique of novel feed liquid
Technical field
The present invention relates to technical field of polymer materials, particularly relate to the vacuum defoamation technique of a kind of novel feed liquid.
Background technology
Epoxide-resin glue (epoxyresinadhesive) generally refers to the adhesive obtained by based on epoxy resin, epoxide resin AB glue is mainly made up of epoxy resin and amine curing agent, general by epoxy resin and diluent, Aid Portions is called A glue or host, amine curing agent part is called B glue or firming agent, A glue can produce much big and small bubble after stirring dispersion machine disperses, through standing more than 20 hour after A glue packaging, wherein visible big-and-middle-sized bubble can float shattered to pieces voluntarily, A glue is as clear as crystal, but a lot of miniature sightless bubbles stick in A glue by molecular separating force, due to small volume, it is not enough to overcome molecular separating force to float, these micro bubbles are at the middle and late stage of AB adhesive curing, produce due to the change of AB xanthan molecule structure and locus to migrate and build up, some builds up into visible bubble in bubble, at this moment AB glue is partially cured becomes viscous, these bubbles cannot float shattered to pieces, become the bubble that AB glue curing reaction middle and late stage produces, the middle and late stage bubble mechanism of production of AB adhesive curing is not known by overwhelming majority AB glue manufacturing enterprise, think and produce when bubble is by downstream user mix and blend AB glue, go to solve by methods such as vacuum defoamations after allowing downstream user stir AB glue.
In existing chemical industry, AB glue manufacturing enterprise froth in vacuum is to carry out in Dewar vessel or reactor, be briefly described be relatively large number of liquid in relatively limited container by normal pressure vacuum suction to condition of high vacuum degree, batch production.
The vacuum defoamation technique of prior art epoxy resin glue is as follows:
1), raise A glue body or enter in Dewar vessel with pump extraction A glue.
2), in the process of evacuation, need to place or repeatedly put into air for a long time and rush the foam that goes out. The A glue being just stirred, all size bubble is a lot, disposable it is extracted into high vacuum state, volume can expand 5 times to more than 10 times, A calymma foam can be pumped, so once can only be dosed to about 1/3rd (feeding intake very little, efficiency is very low) of Dewar vessel volume, when foam is raised to the Height of bleeding point, cut off vacuum pump;
A. standing several hours, wait part foam to vanish, glue is further continued for evacuation after declining, it is possible to also to shut down standing several times, and the viscosity of this and glue, glue relative volume in a reservoir is relevant.
B. air is put into; vacuum reduces, and bubble reduces, and foam declines; there is a small amount of bubble-break in the process or merge (but effect is extremely limited) evacuation again; shut down again when the foam in glue is raised near vacuum pumping opening again, the bubble that goes out of exitting, tens times to more than 20 times so repeatedly; high vacuum state can be extracted into; some producers pass through electric automatic control, venting of regularly bleeding, and enormously simplify operation easier.
3), having mixing plant, bottom glue is turned to liquid level, it is simple to froth breaking in Dewar vessel, the bubble in the glue of bottom is due to the effect of fluid pressure, it is not easy to expands and floats.
4), intermittent operation, old technique is that a certain amount of liquid starts gradually to be extracted into condition of high vacuum degree in relatively limited space from normal pressure, because producing foam volume during evacuation to expand, bleed again so to exit repeatedly to froth or stand for a long time, also to stir upset glue, can only batch (-type) operation.
In sum, existing vacuum defoamation process inefficient, high energy consumption, add equipment cost, power cost, cost of labor and operation easier.
Therefore, how feed liquid is carried out simple efficient vacuum defoamation to process, thus ensureing that the successional feed liquid of relatively small amount is in the space of relatively large condition of high vacuum degree, rapid deaeration, realization can consecutive production, thus avoiding in prior art processes because the phenomenons such as poor efficiency, high energy consumption, equipment volume are big and trivial operations increases equipment cost, power cost and human cost are problem demanding prompt solutions.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of and be capable of the rapid deaeration in the space of relatively large condition of high vacuum degree of relatively small amount continuous print feed liquid, so as the vacuum defoamation technique of the novel feed liquid of consecutive production, aim to solve the problem that needing, by numerous downstream user, mixed AB glue is carried out vacuum defoamation frequently in prior art operates, and the technical problem of equipment cost, power cost and human cost produced by whole downstream user vacuum defoamation.
The present invention is achieved in that the vacuum defoamation technique of a kind of novel feed liquid, comprises the following steps:
One feed liquid accommodating cylinder is provided;
One vacuum tank is provided, the top of wherein said vacuum tank is respectively equipped with a feed opening and a bleeding point, described feed opening is provided with tremie pipe, one end of described tremie pipe is stretched in described vacuum tank and is installed on screen cloth, the other end of described tremie pipe connects one end of feed hose by inlet valve, the other end of described feed hose stretches in described feed liquid accommodating cylinder, described bleeding point connects exhaust tube, described exhaust tube is connected with suction hose by extraction valve, described suction hose connects vacuum pump, the bottom of described vacuum tank is provided with a check valve and the mateiral pump being connected respectively and manual baiting valve with described check valve, described mateiral pump exit is provided with one and takes out material valve,
Open the extraction valve on described exhaust tube, described vacuum tank is pumped to high vacuum state by described vacuum pump;
Open the inlet valve on described tremie pipe, in order to utilize the negative pressure in described vacuum tank to be drawn in described feed hose by the feed liquid in described feed liquid accommodating cylinder;
Enter the continuous screen cloth in described tremie pipe trickle down in described condition of high vacuum degree tank body in appropriate amount after the control of the big small guide vane of inlet valve of the feed liquid in described feed hose, in order to described feed liquid is rapid deaeration in relatively large condition of high vacuum degree space;
Described feed liquid after deaeration falls into the bottom of described vacuum tank, and takes away with described mateiral pump through described check valve, to realize seriality line production, or realizes batch (-type) blowing by described manual baiting valve.
Further, described vacuum tank is metal vacuum tank body or plastic vacuum tank body.
Further, the numerical value of the condition of high vacuum degree of described vacuum tank is lower than 10Pa.
Further, described feed liquid is epoxy resin adhesive liquid, liquid resin or liquid.
Further, one it is provided with in described vacuum tank for showing the liquid level ruler of feed liquid position.
Further, the top of described vacuum tank is additionally provided with an observation window.
Further, the top of described vacuum tank is additionally provided with a vacuum meter.
The invention have the benefit that the vacuum defoamation technique of novel feed liquid provided by the invention, vacuum tank is pumped to high vacuum state by vacuum pump by this technique, open inlet valve again, in order to utilize the negative pressure in vacuum tank to be drawn in feed hose by the feed liquid in feed liquid accommodating cylinder, enter the screen cloth in tremie pipe trickle down in vacuum tank in appropriate amount continuously after the control of the big small guide vane of inlet valve of the feed liquid in feed hose, so that feed liquid is rapid deaeration in relatively large condition of high vacuum degree space, so, the liquid of a small amount of flowing is extracted gas by vacuum rapidly in relatively large condition of high vacuum degree space, steam, escaping gas etc., it is easily separated process or discharge again, continuous line production can be realized, tank body volume can be reduced, simplify vacuum device structure and operation controls difficulty, improve production efficiency, save equipment cost, it is widely used in petrochemical industry, the fields such as chemosynthesis, thus solving in existing technique because of poor efficiency, high energy consumption, the equipment cost that equipment volume is big and trivial operations increases, the technical problem such as power cost and human cost.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
The vacuum defoamation technique of a kind of novel feed liquid that the embodiment of the present invention provides, comprises the following steps:
S01, it is provided that a feed liquid accommodating cylinder;
S02, one vacuum tank is provided, wherein, the top of described vacuum tank is respectively equipped with a feed opening and a bleeding point, described feed opening is provided with tremie pipe, one end of described tremie pipe is stretched in described vacuum tank and is installed on screen cloth, the other end of described tremie pipe connects one end of feed hose by inlet valve, the other end of described feed hose stretches in described feed liquid accommodating cylinder, described bleeding point connects exhaust tube, described exhaust tube is connected with suction hose by extraction valve, described suction hose connects vacuum pump, the bottom of described vacuum tank is provided with a check valve and the mateiral pump being connected respectively and manual baiting valve with described check valve, described mateiral pump exit is provided with one and takes out material valve,
S03, opens the extraction valve on described exhaust tube, described vacuum tank is pumped to high vacuum state by described vacuum pump;
S04, opens the material inlet valve on described tremie pipe, in order to utilize the negative pressure in described vacuum tank to be drawn in described feed hose by the feed liquid in described feed liquid accommodating cylinder;
S05, enter the continuous screen cloth in described tremie pipe trickle down in described condition of high vacuum degree tank body in appropriate amount after the control of the big small guide vane of inlet valve of the feed liquid in described feed hose, in order to described feed liquid is rapid deaeration in relatively large condition of high vacuum degree space;
S06, the described feed liquid after deaeration falls into the bottom of described vacuum tank, and takes away with described mateiral pump through described check valve, to realize seriality line production, or realizes batch (-type) blowing by described manual baiting valve.
It should be noted that, enter the continuous screen cloth in described tremie pipe trickle down in described condition of high vacuum degree tank body in appropriate amount after the control of the big small guide vane of inlet valve of the feed liquid in described feed hose, now, feed liquid is trickled down in tank body as rainwater, gas, steam, escaping gas are extracted rapidly in the relatively large space of feed liquid entrance condition of high vacuum degree appropriate continuously, it may be achieved continuous-flow type operation.
Further, described vacuum tank is metal vacuum tank body or plastic vacuum tank body.
Further, the numerical value of the condition of high vacuum degree of described vacuum tank is lower than 10Pa, and herein, the more little vacuum of the numerical value of the condition of high vacuum degree of described vacuum tank is more high.
Further, described feed liquid is epoxy resin adhesive liquid, liquid resin or liquid, and herein, the present invention does not limit described feed liquid and is only epoxy resin adhesive liquid, liquid resin or liquid, liquid in other petrochemical industry synthesis fields can also, process as long as relating to that liquid is carried out evacuation.
Further, one it is provided with in described vacuum tank for showing the liquid level ruler of feed liquid position.
Further, the top of described vacuum tank is additionally provided with an observation window.
Further, the top of described vacuum tank is additionally provided with a vacuum meter.
The vacuum defoamation technique of a kind of novel feed liquid provided by the invention has the advantage that
1) brew without standing for a long time or repeatedly putting into air, improve production efficiency.
Without disposing stirring motor on tank body, alleviating weight and simplify tank structure, therefore tank body can use plastic container, saves equipment cost.
2) saves energy under condition of high vacuum degree, vacuum pump running load under condition of high vacuum degree is minimum, repeatedly puts into gas and brews and take away, and expense is electric and increases pump housing abrasion, operates and controls also complicated.
3) high-volume uninterrupted current ability of swimming operation can be realized.
4) volume of tank body can also be greatly reduced, save space and cost.
The invention have the benefit that the vacuum defoamation technique of novel feed liquid provided by the invention, vacuum tank is pumped to high vacuum state by vacuum pump by this technique, open inlet valve again, in order to utilize the negative pressure in vacuum tank to be drawn in feed hose by the feed liquid in feed liquid accommodating cylinder, enter the screen cloth in tremie pipe trickle down in vacuum tank in appropriate amount continuously after the control of the big small guide vane of inlet valve of the feed liquid in feed hose, so that feed liquid is rapid deaeration in relatively large condition of high vacuum degree space, so, the liquid of a small amount of flowing is extracted gas by vacuum rapidly in relatively large condition of high vacuum degree space, steam, escaping gas etc., it is easily separated process or discharge again, continuous line production can be realized, tank body volume can be reduced, simplify vacuum device structure and operation controls difficulty, improve production efficiency, save equipment cost, it is widely used in petrochemical industry, the fields such as chemosynthesis, thus solving in existing technique because of poor efficiency, high energy consumption, the equipment cost that equipment volume is big and trivial operations increases, the technical problem such as power cost and human cost.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.

Claims (7)

1. the vacuum defoamation technique of feed liquid one kind novel, it is characterised in that comprise the following steps:
One feed liquid accommodating cylinder is provided;
One vacuum tank is provided, the top of wherein said vacuum tank is respectively equipped with a feed opening and a bleeding point, described feed opening is provided with tremie pipe, one end of described tremie pipe is stretched in described vacuum tank and is installed on screen cloth, the other end of described tremie pipe connects one end of feed hose by inlet valve, the other end of described feed hose stretches in described feed liquid accommodating cylinder, described bleeding point connects exhaust tube, described exhaust tube is connected with suction hose by extraction valve, described suction hose connects vacuum pump, the bottom of described vacuum tank is provided with a check valve and the mateiral pump being connected respectively and manual baiting valve with described check valve, described mateiral pump exit is provided with one and takes out material valve,
Open the extraction valve on described exhaust tube, described vacuum tank is pumped to high vacuum state by described vacuum pump;
Open the inlet valve on described tremie pipe, in order to utilize the negative pressure in described vacuum tank to be drawn in described feed hose by the feed liquid in described feed liquid accommodating cylinder;
Enter the continuous screen cloth in described tremie pipe trickle down in described condition of high vacuum degree tank body in appropriate amount after the control of the big small guide vane of inlet valve of the feed liquid in described feed hose, in order to described feed liquid is rapid deaeration in relatively large condition of high vacuum degree space;
Described feed liquid after deaeration falls into the bottom of described vacuum tank, and takes away with described mateiral pump through described check valve, to realize seriality line production, or realizes batch (-type) blowing by described manual baiting valve.
2. the vacuum defoamation technique of a kind of novel feed liquid according to claim 1, it is characterised in that described vacuum tank is metal vacuum tank body or plastic vacuum tank body.
3. the vacuum defoamation technique of a kind of novel feed liquid according to claim 1, it is characterised in that the numerical value of the condition of high vacuum degree of described vacuum tank is lower than 10Pa.
4. the vacuum defoamation technique of a kind of novel feed liquid according to claim 1, it is characterised in that described feed liquid is epoxy resin adhesive liquid, liquid resin or liquid.
5. the vacuum defoamation technique of a kind of novel feed liquid according to claim 1, it is characterised in that be provided with one in described vacuum tank for showing the liquid level ruler of feed liquid position.
6. the vacuum defoamation technique of a kind of novel feed liquid according to claim 1, it is characterised in that the top of described vacuum tank is additionally provided with an observation window.
7. the vacuum defoamation technique of a kind of novel feed liquid according to claim 1, it is characterised in that the top of described vacuum tank is additionally provided with a vacuum meter.
CN201610200224.6A 2016-04-05 2016-04-05 Novel vacuum defoaming process for feed liquid Pending CN105664540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610200224.6A CN105664540A (en) 2016-04-05 2016-04-05 Novel vacuum defoaming process for feed liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610200224.6A CN105664540A (en) 2016-04-05 2016-04-05 Novel vacuum defoaming process for feed liquid

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108686403A (en) * 2017-04-06 2018-10-23 白山机工机械有限公司 Defoaming device and debubbling method
CN118403396A (en) * 2024-06-26 2024-07-30 深圳市显华科技有限公司 Synchronous multi-position steady-state experiment comparison test vacuum defoaming stirring mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201098566Y (en) * 2007-08-24 2008-08-13 山东彼岸电力科技有限公司 Vacuum degassing device for high-viscosity liquid silicon rubber
CN201098565Y (en) * 2007-08-24 2008-08-13 山东彼岸电力科技有限公司 Vacuum degassing device for low-viscosity liquid silicon rubber
US20090277851A1 (en) * 2008-05-06 2009-11-12 Dale Pearson Multiphase Particulate Separation Vacuum
CN201823345U (en) * 2010-09-07 2011-05-11 苏州世名科技股份有限公司 Defoaming device for high-viscosity liquid product
CN205073728U (en) * 2015-09-24 2016-03-09 天津市美冠科技有限公司 Water paint defoaming equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201098566Y (en) * 2007-08-24 2008-08-13 山东彼岸电力科技有限公司 Vacuum degassing device for high-viscosity liquid silicon rubber
CN201098565Y (en) * 2007-08-24 2008-08-13 山东彼岸电力科技有限公司 Vacuum degassing device for low-viscosity liquid silicon rubber
US20090277851A1 (en) * 2008-05-06 2009-11-12 Dale Pearson Multiphase Particulate Separation Vacuum
CN201823345U (en) * 2010-09-07 2011-05-11 苏州世名科技股份有限公司 Defoaming device for high-viscosity liquid product
CN205073728U (en) * 2015-09-24 2016-03-09 天津市美冠科技有限公司 Water paint defoaming equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108686403A (en) * 2017-04-06 2018-10-23 白山机工机械有限公司 Defoaming device and debubbling method
CN118403396A (en) * 2024-06-26 2024-07-30 深圳市显华科技有限公司 Synchronous multi-position steady-state experiment comparison test vacuum defoaming stirring mechanism
CN118403396B (en) * 2024-06-26 2024-08-23 深圳市显华科技有限公司 Synchronous multi-position steady-state experiment comparison test vacuum defoaming stirring mechanism

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Application publication date: 20160615