CN106188452B - A kind of device preparing melamine resin - Google Patents
A kind of device preparing melamine resin Download PDFInfo
- Publication number
- CN106188452B CN106188452B CN201610637572.XA CN201610637572A CN106188452B CN 106188452 B CN106188452 B CN 106188452B CN 201610637572 A CN201610637572 A CN 201610637572A CN 106188452 B CN106188452 B CN 106188452B
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- collet
- screw machine
- melamine resin
- preset temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with substituted triazines
- C08G12/32—Melamines
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
The present invention discloses a kind of device for preparing melamine resin, belong to chemical equipment technical field, including sequentially connected mixture feed bin, product pump, first screw machine, stirred tank and the second screw machine, the mixture feed bin respectively with the high compartment of melamine, the high compartment of paraformaldehyde is connected with the high compartment of lye, the feed end of first screw rod, middle position or end are provided with auxiliary material feed inlet, the discharge port end of first screw machine is connect with the feed inlet of the stirred tank, the feed inlet end of second screw machine is connect with the stirred tank discharge port end, second screw machine is higher than the level height of first screw machine.Process units of the invention raw material availability during producing melamine resin is high, low energy consumption, high income, no three wastes generate, can the stable melamine resin of the continuous quality of production, and the product quality of melamine resin is good.
Description
Technical field
The present invention relates to chemical equipment technical field, in particular to a kind of device for preparing melamine resin.
Background technique
Melamine resin, also known as melamine resin (melamine-formaldehyde resin), melamine formaldehyde (MF) tree
Rouge is that melamine reacts obtained polymer with formaldehyde.Reaction is crosslinked when machine-shaping, product is insoluble thermosetting
Property resin.It and Lauxite are often traditionally referred to as amino resins.
Melamine resin can be made into melamino-formaldehyde foam by foamable reaction, and this foam is nonflammable, water-fast, heat-resisting,
Ageing-resistant, resistance to electric arc, it is resistant to chemical etching, have good insulation performance, glossiness and a mechanical strength, while also there is good suction
Audio fruit.Therefore, it is widely used in the sound-absorbing and flame-retardant of building, automobile even aircraft carrier, submarine etc..
Currently, existing melamine resin production mainly uses batch production method, the capital equipment of this method is reaction
Kettle, the production cycle is long, and product viscosity obtained is big, and product quality is also unstable.
Summary of the invention
The present invention provides a kind of device for preparing melamine resin, solves existing melamine resin preparation process not
Continuous problem.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
A kind of device preparing melamine resin, including sequentially connected mixture feed bin, product pump, the first spiral shell
Bar machine, stirred tank and the second screw machine, the mixture feed bin respectively with the high compartment of melamine, the high compartment of paraformaldehyde and alkali
The high compartment connection of liquid, feed end, middle position or the end of first screw rod are provided with auxiliary material feed inlet, first spiral shell
The discharge port end of bar machine is connect with the feed inlet of the stirred tank, and feed inlet end and the stirred tank of second screw machine go out
The connection of material mouth end, second screw machine are higher than the level height of first screw machine.
Wherein it is preferred to be provided with four sections of collets, respectively the first collet, second outside the cylinder of first screw machine
Collet, third collet, the 4th collet, first collet, second collet, the third collet, the 4th collet point
It is not connect with four die heaters.
Wherein it is preferred to which the die heater preset temperature connecting with first collet is 80~110 DEG C, with described second
The die heater preset temperature of collet connection is 95~150 DEG C, die heater preset temperature connect with the third collet for 100~
160 DEG C, the die heater preset temperature connecting with the 4th collet is 90~140 DEG C.
Wherein it is preferred to be provided with the 5th collet outside the cylinder of second screw machine, it is connect with die heater.
Wherein it is preferred to which the die heater preset temperature connecting with second screw machine is 60~100 DEG C.
Wherein it is preferred to which residence time of the material in first screw machine is 5~10min.
Wherein it is preferred to which residence time of the material in second screw machine is 25~45min.
Wherein it is preferred to the stirred tank outside be provided with the 6th collet, the die heater being connect with the 6th collet it is pre-
If temperature is 90~100 DEG C.
Beneficial effects of the present invention:
1. raw material availability is high during producing melamine resin, low energy consumption, high income, nothing for process units of the invention
The three wastes generate, can the continuous stable melamine resin of the quality of production, and the stable product quality of melamine resin, function admirable,
It is suitble to the foaming of melamino-formaldehyde.
2. continuity of production process of the present invention is good, required operator is few, high degree of automation.
3. using, process units of the present invention is with short production cycle, production process is safe.
4. process units structure of the present invention is simple, small investment, takes up an area less.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 present invention prepares the structural schematic diagram of melamine resin device.
In figure, 1. mixture feed bins, 2. product pumps, 3. first screw machines, 4. second screw machines, a 5. paraformaldehydes high position
Storehouse, the high compartment of 6. lye, the high compartment of 7. melamines, 8. auxiliary material feed inlets, 9. first collets, 10. second collets, 11. thirds
Collet, 12. the 4th collets, 13. the 5th collets, 14. die heaters, 15. stirred tanks, 16. the 6th collets, the charging of 17. melamines
Mouthful
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figure 1, the present embodiment provides a kind of device for preparing melamine resin, including it is sequentially connected mixed
Close material bin 1, product pump 2, the first screw machine 3, stirred tank 15 and the second screw machine 4, mixture feed bin 1 respectively with melamine
The high compartment 5 of high compartment 7, paraformaldehyde and the high compartment 6 of lye connect, and the middle position of the first screw rod 3 is provided with auxiliary material feed inlet
8, the discharge port end of the first screw machine 3 is connect with the feed inlet of stirred tank 15, the feed inlet end and stirred tank 15 of the second screw machine 4
Discharge port end connection, the second screw machine 4 are higher than the level height of the first screw machine 3.In the present invention, auxiliary material feed inlet 8 can also be with
Feed end or the end of first screw machine 3 are set.Second screw machine 4 is higher than the height of the first screw machine 3, to accomplish material
Bottom in and top out guarantees the technical effect to the first in first out of material.
When preparing melamine resin using the present embodiment, melamine is powder, and paraformaldehyde is particulate material, the solvent of reaction
For the lye of addition, wherein lye is the aqueous solution that mass ratio is 0.2~0.5% organic base or inorganic base.The auxiliary material of addition is
One or more inorganic sodiums.Using the equipment of the present embodiment, before the reaction, first paraformaldehyde is mixed with lye, is added the
One screw machine adds melamine after heating a period of time, makes reaction can significantly more efficient progress.
Wherein, four sections of collets are provided with outside the cylinder of the first screw machine 3, respectively the first collet 9, the second collet 10, the
Three collets 11, the 4th collet 12, the first collet 9, the second collet 10, third collet 11, the 4th collet 12 respectively with four Tai Mowen
Machine 14 connects.14 preset temperature of die heater connecting with the first collet 9 is 80~110 DEG C, the mould temperature connecting with the second collet 10
14 preset temperature of machine is 95~150 DEG C, and 14 preset temperature of die heater connecting with third collet 11 is 100~160 DEG C, with the 4th
14 preset temperature of die heater that collet 12 connects is 90~140 DEG C.Four sections of collets are set, keep material in different times not
Same temperature, is more advantageous to the progress that reacting balance has control.
The revolving speed for adjusting the screw rod of the first screw machine 3, make residence time 5 of the material in the first screw machine 3~
10min。
Wherein, it is provided with the 5th collet 13 outside the cylinder of the second screw machine 4, is connect with die heater 14 is protected, with the second screw rod
The die heater preset temperature that machine 4 connects is 65~95 DEG C.
The revolving speed for adjusting the screw rod of the second screw machine 4, make residence time 25 of the material in the second screw machine 4~
45min。
In order to guarantee that polymerization reaction continues, it is provided with the 6th collet outside stirred tank 15, is connect with the 6th collet
Die heater preset temperature be 90~100 DEG C.
The device of the continuous production melamine resin of the present embodiment can the continuously stable melamine resin of the quality of production, and honey
The product quality of polyimide resin is good.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of device for preparing melamine resin, it is characterised in that: including sequentially connected mixture feed bin, material
Pump, the first screw machine, stirred tank and the second screw machine, the mixture feed bin respectively with the high compartment of melamine, paraformaldehyde
High compartment is connected with the high compartment of lye, and feed end, middle position or the end of first screw rod are provided with auxiliary material feed inlet,
The discharge port end of first screw machine is connect with the feed inlet of the stirred tank, the feed inlet end of second screw machine and institute
The connection of stirred tank discharge port end is stated, second screw machine is higher than the level height of first screw machine；
It is provided with four sections of collets outside the cylinder of first screw machine, respectively the first collet, the second collet, third collet, the
Four collets, first collet, second collet, the third collet, the 4th collet connect with four die heaters respectively
It connects；
It is provided with the 5th collet outside the cylinder of second screw machine, second screw machine is connect with die heater；The stirring
It is provided with the 6th collet outside kettle, the preset temperature for the die heater connecting with the 6th collet is 90~100 DEG C.
2. a kind of device for preparing melamine resin according to claim 1, it is characterised in that: with described first
The die heater preset temperature of collet connection is 80~110 DEG C, die heater preset temperature connect with second collet for 95~
150 DEG C, the die heater preset temperature connecting with the third collet is 100~160 DEG C, the mould temperature connecting with the 4th collet
Machine preset temperature is 90~140 DEG C.
3. a kind of device for preparing melamine resin according to claim 2, it is characterised in that: with described second
The die heater preset temperature of screw machine connection is 60~100 DEG C.
4. a kind of device for preparing melamine resin according to claim 1, it is characterised in that: material is described
Residence time in first screw machine is 5~10min.
5. a kind of device for preparing melamine resin according to claim 1, it is characterised in that: material is described
Residence time in second screw machine is 25~45min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637572.XA CN106188452B (en) | 2016-08-02 | 2016-08-02 | A kind of device preparing melamine resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610637572.XA CN106188452B (en) | 2016-08-02 | 2016-08-02 | A kind of device preparing melamine resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106188452A CN106188452A (en) | 2016-12-07 |
| CN106188452B true CN106188452B (en) | 2019-04-30 |
Family
ID=57513554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610637572.XA Active CN106188452B (en) | 2016-08-02 | 2016-08-02 | A kind of device preparing melamine resin |
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| Country | Link |
|---|---|
| CN (1) | CN106188452B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4996289A (en) * | 1988-08-25 | 1991-02-26 | Basf Aktiengesellschaft | Continuous preparation of aqueous melamine/formaldehyde precondensate solutions |
| CN102702460A (en) * | 2012-05-10 | 2012-10-03 | 戴新春 | Novel preparation and continuous production method of melamine resin |
| CN102838744A (en) * | 2012-10-03 | 2012-12-26 | 上海会博新材料科技有限公司 | Continuous production device for poly-p-phenylene terephthamide resin |
-
2016
- 2016-08-02 CN CN201610637572.XA patent/CN106188452B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4996289A (en) * | 1988-08-25 | 1991-02-26 | Basf Aktiengesellschaft | Continuous preparation of aqueous melamine/formaldehyde precondensate solutions |
| CN102702460A (en) * | 2012-05-10 | 2012-10-03 | 戴新春 | Novel preparation and continuous production method of melamine resin |
| CN102838744A (en) * | 2012-10-03 | 2012-12-26 | 上海会博新材料科技有限公司 | Continuous production device for poly-p-phenylene terephthamide resin |
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| Publication number | Publication date |
|---|---|
| CN106188452A (en) | 2016-12-07 |
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