CN207838945U - 4,4 '-methyl diphenylene diisocyanate thawing apparatus - Google Patents
4,4 '-methyl diphenylene diisocyanate thawing apparatus Download PDFInfo
- Publication number
- CN207838945U CN207838945U CN201721857268.2U CN201721857268U CN207838945U CN 207838945 U CN207838945 U CN 207838945U CN 201721857268 U CN201721857268 U CN 201721857268U CN 207838945 U CN207838945 U CN 207838945U
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- China
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- mdi
- barrel frame
- methyl diphenylene
- water bath
- thawing apparatus
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Abstract
The utility model discloses 4,4 ' methyl diphenylene diisocyanate thawing apparatus, it includes water bath（1）, steam(-)coil（2）, set a barrel frame（3）, MDI barrels（4）, sunpender（5）, insulation cover can be started（6）And cylinder（7）；Water bath（1）Bottom is provided with steam(-)coil（2）, water bath（1）It is internally provided with and sets a barrel frame（3）, MDI barrels（4）A barrel frame is being set in setting（3）It is interior, set a barrel frame（3）One end and cylinder（7）It is connected.The utility model in actual use, substantially reduces the thawing time of 4,4 ' methyl diphenylene diisocyanates, was shortened to 4 ~ 5 hours by original 8 hours, while the amount for generating self-aggregate greatly reduces, ensures the quality of MDI.
Description
Technical field
The utility model is related to a kind of 4,4 '-methyl diphenylene diisocyanate thawing apparatus, are mainly used for polyurethane, heat
Melten gel, spandex etc. need industry of the 4,4 '-methyl diphenylene diisocyanates as raw material.
Background technology
4,4 '-methyl diphenylene diisocyanates, abbreviation MDI are a kind of one of common raw materials of polyurethane industries among others, special
Point is fusing point height（36~39℃）, it is solid state at normal temperatures, when factory uses, needs the MDI of solid being melted into
Liquid MDI, but auto polymerization can occur at 50 DEG C or more for a long time for MDI fluid temperatures, form the polymerization of the low molecules such as dimer, tripolymer
Object can directly influence subsequent polymerisation.
There are two types of existing MDI thawing apparatus is usual, one kind is placed in baking oven, ensures the temperature in baking oven using electrical heating
Degree is 50 DEG C, and entire bucket 250kg, which all melts, to be usually required 36 hours；Another kind is placed in 70 DEG C of hot baths, is all melted
It usually requires 8 hours.
In both modes, the first can ensure that auto polymerization does not occur for MDI, but the thawing time is too long, be produced for cooperation
It needs, multiple baking ovens is needed just to can guarantee normal production；Make the MDI close to bucket wall in more than 50 DEG C temperature because of 70 DEG C of water-baths second
The lower overlong time of degree, it may occur that auto polymerization influences the quality of part MDI.
Utility model content
Technical problem to be solved in the utility model is that provide 4,4 '-diphenyl methanes two for the above-mentioned prior art different
Cyanate thawing apparatus can shorten the thawing time of MDI, ensure the quality of MDI.
The technical scheme in the invention for solving the above technical problem is：4,4 '-methyl diphenylene diisocyanates melt
Makeup is set, it includes water bath, steam(-)coil, sets a barrel frame, MDI barrels, sunpender, can start insulation cover and cylinder；Water-bath
Trench bottom is provided with steam(-)coil, and water bath, which is internally provided with, sets a barrel frame, and MDI barrels of settings are being set in barrel frame, and bucket is set
Frame one end connects with cylinders.
Preferably, barrel frame of setting is basket frame.
Preferably, water bath top setting can start insulation cover.
Preferably, can start and be provided with several gooseneck brackets on insulation cover, sunpender and gooseneck bracket are hinged, the sunpender other end with set
Bucket frame connection.
Compared with prior art, the utility model has the advantage of：
The utility model in actual use, substantially reduces the thawing of 4,4 '-methyl diphenylene diisocyanates
Time was shortened to 4 ~ 5 hours by original 8 hours, while the amount for generating self-aggregate greatly reduces, and ensures the quality of MDI.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：
Water bath 1
Steam(-)coil 2
Set barrel frame 3
MDI buckets 4
Sunpender 5
Insulation cover 6 can be started
Cylinder 7.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figure 1,4 in the present embodiment, 4 '-methyl diphenylene diisocyanate thawing apparatus, including water bath 1,
Steam(-)coil 2 sets barrel frame 3, MDI buckets 4, sunpender 5, can start insulation cover 6 and cylinder 7.
1 bottom of water bath is provided with steam(-)coil 2, and the top of steam(-)coil 2, which is provided with, in water bath 1 sets bucket
Frame 3, barrel frame 3 of setting is basket frame, and the setting of MDI buckets 4 is setting in barrel frame 3, setting 3 one end of barrel frame and be connected with cylinder 7
It connects, the setting of 1 top of water bath can start insulation cover 6, can start and be provided with several gooseneck brackets on insulation cover 6, sunpender 5 and gooseneck bracket
Hinged, 5 other end of sunpender is connect with barrel frame 3 is set.
Operation principle：
Insulation cover 6 can first be started to open, MDI buckets 4 are put into and are set in barrel frame 3, then insulation cover 6 can be started and covered,
During use, 20 minutes often are spent, cylinder 7 is allowed to do one stroke, set barrel frame 3 and MDI buckets 4 is driven to will shake once, in this way
It is and then shaken once by the MDI of wall surface melted in MDI buckets 4, the MDI of higher temperature is made to leave wall surface, prevent from leaning on wall surface
MDI cause auto polymerization because of long-time high temperature.
In addition to the implementation, the utility model further includes having other embodiment, all to use equivalents or equivalent
The technical solution that alternative is formed, should all fall within the protection domain of the utility model claims.
Claims (4)
1. 4,4 '-methyl diphenylene diisocyanate thawing apparatus, it is characterised in that：It includes water bath（1）, steam heating
Coil pipe（2）, set a barrel frame（3）, MDI barrels（4）, sunpender（5）, insulation cover can be started（6）And cylinder（7）；Water bath（1）Bottom is set
It is equipped with steam(-)coil（2）, water bath（1）It is internally provided with and sets a barrel frame（3）, MDI barrels（4）A barrel frame is being set in setting（3）
It is interior, set a barrel frame（3）One end and cylinder（7）It is connected.
2. according to claim 14,4 '-methyl diphenylene diisocyanate thawing apparatus, it is characterised in that：It is described to set
Bucket frame（3）For basket frame.
3. according to claim 14,4 '-methyl diphenylene diisocyanate thawing apparatus, it is characterised in that：Water bath
（1）Top setting can start insulation cover（6）.
4. according to claim 34,4 '-methyl diphenylene diisocyanate thawing apparatus, it is characterised in that：It can start
Insulation cover（6）On be provided with several gooseneck brackets, sunpender（5）Hinged, the sunpender with gooseneck bracket（5）The other end and set a barrel frame（3）Even
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721857268.2U CN207838945U (en) | 2017-12-27 | 2017-12-27 | 4,4 '-methyl diphenylene diisocyanate thawing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721857268.2U CN207838945U (en) | 2017-12-27 | 2017-12-27 | 4,4 '-methyl diphenylene diisocyanate thawing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207838945U true CN207838945U (en) | 2018-09-11 |
Family
ID=63419101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721857268.2U Active CN207838945U (en) | 2017-12-27 | 2017-12-27 | 4,4 '-methyl diphenylene diisocyanate thawing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207838945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369012A (en) * | 2019-07-27 | 2019-10-25 | 艾美卫信生物药业（浙江）有限公司 | Water-bath |
-
2017
- 2017-12-27 CN CN201721857268.2U patent/CN207838945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369012A (en) * | 2019-07-27 | 2019-10-25 | 艾美卫信生物药业（浙江）有限公司 | Water-bath |
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