CN202030024U - Full-enclosed packaging system for polyurethane curing agents - Google Patents
Full-enclosed packaging system for polyurethane curing agents Download PDFInfo
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- CN202030024U CN202030024U CN2011200586221U CN201120058622U CN202030024U CN 202030024 U CN202030024 U CN 202030024U CN 2011200586221 U CN2011200586221 U CN 2011200586221U CN 201120058622 U CN201120058622 U CN 201120058622U CN 202030024 U CN202030024 U CN 202030024U
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- stainless steel
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- nitrogen inlet
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Abstract
The utility model discloses a full-enclosed packaging system for polyurethane curing agents, which comprises a nitrogen cylinder, a raw material bucket, a packaging machine, a stirring kettle, a buffering tank, a vacuum pump, corresponding stainless steel tubes and corresponding valves. The nitrogen supplying openings of the nitrogen cylinder are respectively connected with a nitrogen inlet of the raw material bucket, a nitrogen inlet of the packaging machine and a nitrogen inlet of the stirring kettle through the corresponding stainless steel tubes and the corresponding valves. The top of a bucket body of the raw material bucket is connected with the stirring kettle through a stainless steel tube serving as a raw material delivery tube. The bottom of the stirring kettle is connected with the packaging machine through a stainless steel tube serving as a material delivery tube. The top of the stirring kettle is connected with the buffering tank through a stainless steel tube serving as a vacuum tube. The vacuum pump is connected with the buffering tank through a stainless steel tube, and the bottom of the packaging machine is connected with a material discharge valve. The packaging system pumps air in the system through the vacuum pump, adjusts pressure in the system through nitrogen and ensures that the polyurethane curing agents are separated from water in the air during a process from mixing of raw materials to packaging of product materials.
Description
Technical field
The utility model relates to a kind of packaging system, is specifically related to a kind of totally-enclosed polyurethane curing agent packaging system.
Background technology
The polyurethane full name is a polyurethane, and it is the general designation that contains the macromolecular compound of repetition carbamate groups on the main chain.It is to be formed by organic diisocyanate or polyisocyanates and dihydroxyl or polyol addition polymerization or autohemagglutination.
Polyurethane curing agent is normally obtained through mixing to stir by its performed polymer, and base polyurethane prepolymer for use as is divided into end NCO performed polymer, end OH performed polymer, contains the blocking groups performed polymer and contain other group performed polymer according to the response characteristic of end group.Its middle-end NCO performed polymer has higher response characteristic, is the most frequently used performed polymer.But its existence is subject to short shortcoming of moisture effects, storage period.This mainly is because NCO group and water reaction can form polyureas, produces a large amount of carbon dioxides simultaneously, thereby has reduced the content of NCO in the performed polymer, makes performed polymer viscosity become big even gel.And the carbon dioxide of generation also can make the container jar that rises.
Answer the moisture in the secluding air in the process of therefore production, storage polyurethane curing agent.
The utility model content
The purpose of this utility model is to address the above problem, and a kind of totally-enclosed polyurethane curing agent packaging system is provided.
The technical scheme that realizes the utility model purpose is: a kind of totally-enclosed polyurethane curing agent packaging system comprises nitrogen gas cylinder, Raw material pail, wrapping machine, stirred tank, expansion tank, vacuum pump and corresponding stainless steel tube and corresponding valve; Nitrogen gas cylinder is linked to each other with the nitrogen inlet of Raw material pail, the nitrogen inlet of wrapping machine and the nitrogen inlet of stirred tank respectively with corresponding valve by corresponding stainless steel tube by its air supply opening; The airtight stainless steel tube that is fixedly connected with as feed line in the position at the discharging opening place at the staving top of Raw material pail, the position at the discharging opening place of Raw material pail also be arranged on bowl inner chamber in the stainless steel tube as material-pumping tube airtightly captive joint, and the lower port of material-pumping tube is arranged in the bottom of bowl inner chamber; The other end of feed line links to each other with the material inlet on the top of stirred tank with corresponding stainless steel tube by respective valves; The position at the discharging opening place of the bottom of stirred tank with captive joint as the upper end of the stainless steel tube of Material pipeline is airtight, the lower end of Material pipeline links to each other with the material inlet of the case top of wrapping machine with corresponding stainless steel tube by respective valves; The airtight stainless steel tube that is fixedly connected with as vacuum-pumping tube in the position at the vacuum orifice place at the top of stirred tank, the other end of this vacuum-pumping tube by respective valves and corresponding stainless steel tube with and the admission port at the top of expansion tank link to each other; Vacuum pump is connected with the top air extractor duct of expansion tank by stainless steel tube by its bleeding point; The discharging opening place of the bottom of wrapping machine with captive joint as the upper end of the stainless steel tube of discharge nozzle is airtight, the other end of discharge nozzle is connected with baiting valve.
The air supply opening of above-mentioned nitrogen gas cylinder by corresponding stainless steel tube and corresponding valve respectively with the nitrogen inlet of Raw material pail, the concrete structure that the nitrogen inlet of wrapping machine and the nitrogen inlet of stirred tank are connected is: nitrogen gas cylinder is linked to each other by the admission port of stainless steel tube with first valve by its air supply opening, the air extractor duct of first valve by corresponding stainless steel tube and adaptor union respectively with second valve, the admission port of the 3rd valve and the 4th valve links to each other, the air extractor duct of second valve links to each other by the nitrogen inlet of stainless steel tube with the staving top of Raw material pail, the air extractor duct of the 3rd valve links to each other by the nitrogen inlet of stainless steel tube with the case top of wrapping machine, and the air extractor duct of the 4th valve links to each other by the nitrogen inlet of stainless steel tube with the top of stirred tank.
Valve between the material inlet of above-mentioned raw materials delivery pipe and stirred tank is the 5th valve.
Valve between the material inlet of above-mentioned Material pipeline and wrapping machine is the 6th valve.
Valve between the admission port of above-mentioned vacuum-pumping tube and expansion tank is the 7th valve.
Good effect of the present utility model is: the utility model is used nitrogen control system pressure then with air in the vacuum pump extraction system, guarantees that polyurethane curing agent mixes moisture content to the overall process secluding air of packing from raw material again.
Description of drawings
Fig. 1 is the scheme drawing of totally-enclosed polyurethane curing agent packaging system of the present utility model.
The title of the mark in the above-mentioned accompanying drawing is as follows:
Nitrogen gas cylinder 1, Raw material pail 2, wrapping machine 3, stirred tank 4, expansion tank 5, vacuum pump 6,
The first valve 7-1, the second valve 7-2, the 3rd valve 7-3, the 4th valve 7-4, the 5th valve 7-5, the 6th valve 7-6, the 7th valve 7-7, the 8th valve 7-8,
Material-pumping tube 8-1, feed line 8-2, Material pipeline 8-3, vacuum-pumping tube 8-4, discharge nozzle 8-5, vomit pipe 8-6.
The specific embodiment
(embodiment 1)
See Fig. 1, the totally-enclosed polyurethane curing agent packaging system of present embodiment comprises nitrogen gas cylinder 1, Raw material pail 2, wrapping machine 3, stirred tank 4, expansion tank 5 and vacuum pump 6, also comprises corresponding stainless steel tube and corresponding valve.
Nitrogen gas cylinder 1 is linked to each other with the nitrogen inlet of Raw material pail 2, the nitrogen inlet of wrapping machine 3 and the nitrogen inlet of stirred tank 4 respectively with corresponding valve by corresponding stainless steel tube by its air supply opening, and the diameter of phi of described stainless steel tube is 10mm.Also be that nitrogen gas cylinder 1 is linked to each other by the admission port of stainless steel tube with the first valve 7-1 by its air supply opening, the air extractor duct of the first valve 7-1 by corresponding stainless steel tube and adaptor union respectively with the second valve 7-2, the admission port of the 3rd valve 7-3 and the 4th valve 7-4 links to each other, the air extractor duct of the second valve 7-2 links to each other by the nitrogen inlet of stainless steel tube with the staving top of Raw material pail 2, the air extractor duct of the 3rd valve 7-3 links to each other by the nitrogen inlet of stainless steel tube with the case top of wrapping machine 3, and the air extractor duct of the 4th valve 7-4 links to each other by the nitrogen inlet of stainless steel tube with the top of stirred tank 4.
Raw material pail 2, wrapping machine 3 and expansion tank 5 all link to each other with stirred tank 4 by the stainless steel tube of corresponding valve and corresponding Φ 65mm.It also is the airtight stainless steel tube that is fixedly connected with as feed line 8-2 in position at discharging opening place at the staving top of Raw material pail 2, the position at the discharging opening place of Raw material pail 2 also with the bowl inner chamber that is arranged on Raw material pail 2 in the stainless steel tube as material-pumping tube 8-1 airtightly captive joint, and the lower port of material-pumping tube 8-1 is arranged in the bottom of the bowl inner chamber of Raw material pail 2; The other end of feed line 8-2 links to each other with the inlet point of the 5th valve 7-5; The discharging opening of the 5th valve 7-5 links to each other by the material inlet of stainless steel tube with the top of stirred tank 4; The position at the discharging opening place of the bottom of stirred tank 4 with captive joint as the upper end of the stainless steel tube of Material pipeline 8-3 is airtight, the lower end of Material pipeline 8-3 links to each other with the inlet point of the 6th valve 7-6, and the discharging opening of the 6th valve 7-6 links to each other by the material inlet of stainless steel tube with the case top of wrapping machine 3; The airtight stainless steel tube that is fixedly connected with as vacuum-pumping tube 8-4 in the position at the vacuum orifice place at the top of stirred tank 4, the other end of this vacuum-pumping tube 8-4 links to each other with the admission port of the 7th valve 7-7, and the air extractor duct of the 7th valve 7-7 links to each other by the admission port of stainless steel tube with the top of expansion tank 5.
Vacuum pump 6 is connected with the top air extractor duct of expansion tank 5 by the stainless steel tube of its bleeding point by Φ 65mm.The discharging opening place of the bottom of wrapping machine 3 with captive joint as the upper end of the stainless steel tube of discharge nozzle 8-5 is airtight, the lower end of discharge nozzle 8-5 links to each other with inlet point as the 8th valve 7-8 of baiting valve, and the discharging opening of the lower end of the 8th valve 7-8 is connected with the stainless steel tube as vomit pipe 8-6.
The workflow of packaging system of the present utility model:
Under the state of all valve closings, open vacuum pump 6 and the 7th valve 7-7, vacuum pump 6 is eliminated the air extraction in the stirred tank 4 by expansion tank 5.The effect of expansion tank 5 is: the degree of vacuum of buffering stirred tank 4 when vacuum pump 6 work prevents from material is pumped in the vacuum pump 6.
Open the 5th valve 7-5, under the effect of vacuum pump 6, base polyurethane prepolymer for use as is pumped down to stirred tank 4 from Raw material pail 2; Simultaneously,, open the first valve 7-1 and the second valve 7-2, thereby all be drawn in the stirred tank 4 by nitrogen gas cylinder 1 nitrogen injection all materials in Raw material pail 2 in Raw material pail 2 in order to prevent air admission.Close the second valve 7-2, the 5th valve 7-5, vacuum pump 6 and the 7th valve 7-7.Open the 4th valve 7-4, nitrogen injection in stirred tank 4, adjustment pressure stir base polyurethane prepolymer for use as and generate polyurethane curing agent to 1kg～1.1kg.
Open the 3rd valve 7-3 and the 8th valve 7-8, in wrapping machine 3, charge into nitrogen, drain air by the 8th valve 7-8; Close the 8th valve 7-8, open the 6th valve 7-6, the polyurethane curing agent that generates is put into wrapping machine 3, open the 8th valve 7-8 at last and, pack immediately from vomit pipe 8-6 discharging.
Overall process makes polyurethane curing agent and air isolated by the form with inflated with nitrogen of vacuumizing, and prevents polyurethane curing agent and airborne moisture content contact reaction and causes the generation of the rotten situation of polyurethane curing agent.
Claims (5)
1. a totally-enclosed polyurethane curing agent packaging system is characterized in that: comprise nitrogen gas cylinder (1), Raw material pail (2), wrapping machine (3), stirred tank (4), expansion tank (5), vacuum pump (6) and corresponding stainless steel tube and corresponding valve;
Nitrogen gas cylinder (1) is linked to each other with the nitrogen inlet of Raw material pail (2), the nitrogen inlet of wrapping machine (3) and the nitrogen inlet of stirred tank (4) respectively with corresponding valve by corresponding stainless steel tube by its air supply opening;
The airtight stainless steel tube that is fixedly connected with as feed line (8-2) in the position at the discharging opening place at the staving top of Raw material pail (2), the position at the discharging opening place of Raw material pail (2) also be arranged on bowl inner chamber in the stainless steel tube as material-pumping tube (8-1) airtightly captive joint, and the lower port of material-pumping tube (8-1) is arranged in the bottom of bowl inner chamber; The other end of feed line (8-2) links to each other with the material inlet on the top of stirred tank (4) with corresponding stainless steel tube by respective valves;
The position at the discharging opening place of the bottom of stirred tank (4) with captive joint as the upper end of the stainless steel tube of Material pipeline (8-3) is airtight, the lower end of Material pipeline (8-3) links to each other with the material inlet of the case top of wrapping machine (3) with corresponding stainless steel tube by respective valves;
The airtight stainless steel tube that is fixedly connected with as vacuum-pumping tube (8-4) in the position at the vacuum orifice place at the top of stirred tank (4), the other end of this vacuum-pumping tube (8-4) by respective valves and corresponding stainless steel tube with and the admission port at the top of expansion tank (5) link to each other;
Vacuum pump (6) is connected by the top air extractor duct of stainless steel tube with expansion tank (5) by its bleeding point;
The discharging opening place of the bottom of wrapping machine (3) with captive joint as the upper end of the stainless steel tube of discharge nozzle (8-5) is airtight, the other end of discharge nozzle (8-5) is connected with baiting valve.
2. totally-enclosed polyurethane curing agent packaging system according to claim 1, it is characterized in that: the air supply opening of nitrogen gas cylinder (1) by corresponding stainless steel tube and corresponding valve respectively with the nitrogen inlet of Raw material pail (2), the concrete structure that the nitrogen inlet of the nitrogen inlet of wrapping machine (3) and stirred tank (4) is connected is: nitrogen gas cylinder (1) is linked to each other by the admission port of stainless steel tube with first valve (7-1) by its air supply opening, the air extractor duct of first valve (7-1) by corresponding stainless steel tube and adaptor union respectively with second valve (7-2), the admission port of the 3rd valve (7-3) and the 4th valve (7-4) links to each other, the air extractor duct of second valve (7-2) links to each other by the nitrogen inlet of stainless steel tube with the staving top of Raw material pail (2), the air extractor duct of the 3rd valve (7-3) links to each other by the nitrogen inlet of stainless steel tube with the case top of wrapping machine (3), and the air extractor duct of the 4th valve (7-4) links to each other by the nitrogen inlet of stainless steel tube with the top of stirred tank (4).
3. totally-enclosed polyurethane curing agent packaging system according to claim 1 is characterized in that: the valve between the material inlet of feed line (8-2) and stirred tank (4) is the 5th valve (7-5).
4. totally-enclosed polyurethane curing agent packaging system according to claim 1 is characterized in that: the valve between the material inlet of Material pipeline (8-3) and wrapping machine (3) is the 6th valve (7-6).
5. totally-enclosed polyurethane curing agent packaging system according to claim 1 is characterized in that: the valve between the admission port of vacuum-pumping tube (8-4) and expansion tank (5) is the 7th valve (7-7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200586221U CN202030024U (en) | 2011-03-08 | 2011-03-08 | Full-enclosed packaging system for polyurethane curing agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200586221U CN202030024U (en) | 2011-03-08 | 2011-03-08 | Full-enclosed packaging system for polyurethane curing agents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202030024U true CN202030024U (en) | 2011-11-09 |
Family
ID=44892332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200586221U Expired - Fee Related CN202030024U (en) | 2011-03-08 | 2011-03-08 | Full-enclosed packaging system for polyurethane curing agents |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202030024U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514754A (en) * | 2011-12-23 | 2012-06-27 | 江苏中瀛涂料有限公司 | Operation device for coating hardeners and with nitrogen protection device |
| CN109942791A (en) * | 2019-02-22 | 2019-06-28 | 上海稻畑精细化工有限公司 | A kind of preparation process of polyurethane curing agent |
| CN111731700A (en) * | 2020-07-01 | 2020-10-02 | 浙江华峰新材料有限公司 | Heat-preservation transfer method for polyurethane stock solution |
-
2011
- 2011-03-08 CN CN2011200586221U patent/CN202030024U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514754A (en) * | 2011-12-23 | 2012-06-27 | 江苏中瀛涂料有限公司 | Operation device for coating hardeners and with nitrogen protection device |
| CN109942791A (en) * | 2019-02-22 | 2019-06-28 | 上海稻畑精细化工有限公司 | A kind of preparation process of polyurethane curing agent |
| CN111731700A (en) * | 2020-07-01 | 2020-10-02 | 浙江华峰新材料有限公司 | Heat-preservation transfer method for polyurethane stock solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20170308 |