CN203238212U - Preparation method of UFIM (urea-formaldehyde-inorganic mineral) adhesive - Google Patents
Preparation method of UFIM (urea-formaldehyde-inorganic mineral) adhesive Download PDFInfo
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- CN203238212U CN203238212U CN 201320292272 CN201320292272U CN203238212U CN 203238212 U CN203238212 U CN 203238212U CN 201320292272 CN201320292272 CN 201320292272 CN 201320292272 U CN201320292272 U CN 201320292272U CN 203238212 U CN203238212 U CN 203238212U
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- inorganic mineral
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- sizing agent
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Abstract
The utility model provides a preparation method of a UFIM (urea-formaldehyde-inorganic mineral) adhesive. The preparation method involves a urea resin and inorganic mineral powder mixing and stirring system and a storage tank which are sequentially connected through a pipeline, wherein a plurality of return pipes are arranged on the periphery of the storage tank, and the return pipes and the storage tank form a circulation loop. The system avoids the problem that a precipitate is easy to form when inorganic mineral powder is added, and has the characteristics of simple equipment and relatively low production cost.
Description
Technical field
The utility model relates to the equipment for preparing Artificial Plate Adhesive, specifically, relates to the preparation system of a kind of environment protection, low cost, high-quality ecological vegetable fiberboard usefulness sizing agent.
Background technology
The air aldehyde resin sizing agent is the organic resin sizing agent that consumption is maximum, purposes is the widest, is to be formed by chemical substance polycondensations under catalyst action such as formaldehyde and urea or phenol, and solid content is 45%～60%.The air aldehyde resin sizing agent has become the main glue kind of China's Wood-based Panel Production, and cohere at material, widespread use in the industries such as bamboo wood processing, paper are cohered, toughened paint, coating of multi-colour pattern, be one of sizing agent that has the call on the market.
But, in Wood-based Panel Production, common air aldehyde resin sizing agent large usage quantity, the Wood-based Panel Production cost higher (at present, the sizing agent cost account for the Wood-based Panel Production cost about 1/3).And, when adopting common air aldehyde resin sizing agent to produce wood-based plate, can discharge more formaldehyde gas in Wood-based Panel Production and the use procedure, environmental-protecting performance is poor, the serious harm mankind's production and living environment.And, the poor-performing such as wood-based plate is moistureproof, fire-retardant.
Therefore, research and development sizing agent new technology, novel process, preparation environment-friendly type sizing agent reduces the sizing agent consumption, and make sizing agent have some special function, thereby the over-all properties of improving sizing agent is of great immediate significance.
Summary of the invention
For addressing the above problem, the purpose of this utility model provides a kind of system for preparing vegetable fiberboard and used for shaving board new urea-formaldehyde-inorganic mineral sizing agent (UFIM sizing agent), effectively solves the precipitation of inorganic mineral powder.
In order to realize goal of the invention, the utility model provides a kind of preparation system of UFIM sizing agent, comprise successively the urea-formaldehyde resin that links to each other by pipeline and inorganic mineral powder mixing and stirring system, hold tank, be equipped with several times sebific duct around the described hold tank, described time sebific duct and described hold tank formation circulation loop.
Wherein, before described stirring system, also be provided with the urea-formaldehyde resin reactor.
Be provided with high speed agitator and low-speed agitator in the described stirring system, described high speed agitator is positioned at the low-speed agitator periphery.
Described stirring system top is provided with urea-formaldehyde resin import, the import of inorganic mineral powder, water inlet and inorganic mineral dust-removal system, and the bottom is provided with the mixed glue solution outlet.
Be provided with filtering system between described stirring system and the hold tank.
Described hold tank is provided with agitator.
Be provided with several times sebific duct around the described hold tank, described time sebific duct axially with through the tangent line that returns Jiao Kou on the hold tank becomes 30～45° angle, each returns sebific duct and constantly extracts the intermediate storage tank that reinjects behind the mixed glue solution out by the glue pump from hold tank, in hold tank, will form eddy current like this, thereby reach the purpose that prevents inorganic mineral powder precipitation.
The utility model is used for the UFIM sizing agent of preparation take formaldehyde, urea, inorganic mineral powder as main raw material, adopts and carries out polycondensation by formaldehyde and urea first, then adds the inorganic mineral powder, mixes to form.
Wherein, described inorganic mineral powder is one or more in the inorganic mineral powder such as marble flour, granite powder, mica powder, silicate powder, Paris white, talcum powder, and specification is more than 100 orders.
Half-finished weight ratio that described inorganic mineral powder and polycondensation obtain is 1:0.6～1.4.
Before adding the inorganic mineral powder, also add entry, the work in-process weight ratio that water and polycondensation obtain is 1:5～15.
UFIM sizing agent of the present utility model is the suspension of even blend, specifically adopts following method to be prepared from:
1) first the pH value of formalin is transferred to 7.0～8.0, then adds the urea of total addition level 50～55%, be controlled at pH in 8.0～8.5 scopes and be warmed up to 65～68 ℃ of steam offs;
2) naturally heat up, 80～82 ℃ of lower control pH values are in 6.6～6.8 scopes, and are incubated 30 minutes down at 88～90 ℃;
3) the pH value is transferred to 5.0～5.2,90～92 ℃ of lower reactions 90～120 minutes, when viscosity reach 16～18 seconds/30 ℃ the time, pH value is transferred to 7.0～7.5, and lowers the temperature;
4) when temperature drops to 80～85 ℃, add the urea of total addition level 25～30%, insulation is 20 minutes in the time of 75～78 ℃;
5) be cooled to 75 ℃, add the urea of total addition level 20～25%, 65 ℃ of lower insulations 15 minutes; And the pH value is transferred to 7.5～8.0, be cooled to below 40 ℃;
6) then add entry, water and 5) in the work in-process weight ratio be 1:5～15, mix, add again the inorganic mineral powder, inorganic mineral powder and 5) the half-finished weight ratio in is 1:0.6～1.4, mixes, and makes even blend suspension UFIM sizing agent.
Wherein, described urea and formaldehyde mole ratio are 1:1.0～1.2.
The utility model is regulated the pH value can adopt sodium hydroxide or formic acid.
UFIM sizing agent described in the utility model can be further used for preparing have low burst size of methanal, high-dimensional stability, low manufacturing cost and have vegetable fiberboard and the shaving board of certain anti-flaming function.
The utility model adopts after formaldehyde and urea carry out polycondensation for novel UFIM sizing agent, adds the inorganic mineral powder and is easy to form precipitation, and the novel preparation system that a kind of equipment is simple, production cost is relatively low is provided.
Simultaneously, composite by inorganic mineral powder and sizing agent, can save vegetable fibre or wood shavings about 10～30%, therefore, production cost can reduce more than 10%;
The utility model carries out inorganic mineral powder and urea-formaldehyde resin composite, the inorganic mineral powder is evenly distributed on and has played the effect that improves mechanical strength in the sheet material, simultaneously, the inorganic mineral powder can also stop up formaldehyde in vegetable fibre or the wood shavings and vegetable fiberboard and shaving board from the passage of airborne absorption moisture, and board dimension stability improves more than 10%;
The utility model adopts the inorganic mineral powder to be evenly distributed in the sheet material, and the inorganic mineral powder can adsorb and fix a large amount of formaldehyde.Therefore, adopt vegetable fiberboard or the shaving board burst size of methanal of the utility model preparation significantly to reduce, the reduction amplitude is up to about 30%;
Simultaneously, in UFIM sizing agent preparation process, the effect of returning the eddy current of sebific duct makes between urea aldehyde (or phenolic aldehyde) Resin adhesive and the inorganic mineral powder, can generation rub between inorganic mineral powder and the inorganic mineral powder, frictional heat can make the polymeric gel liquid temp reach 30～40 ℃, can reduce fiber drying energy consumption about 3～5%, thereby can effectively enhance productivity about about 5%.
Description of drawings
Fig. 1 is UFIM sizing agent preparation system sketch described in the utility model.
Embodiment
Below in conjunction with embodiment, embodiment of the present utility model is described in further detail.
The preparation system of FIM sizing agent of the present utility model comprises successively the urea-formaldehyde resin that links to each other by pipeline and inorganic mineral powder mixing and stirring system, intermediate storage tank.
Be equipped with several times sebific duct around the described hold tank, described time sebific duct and described intermediate storage tank formation circulation loop.
Wherein, before described stirring system, also be provided with the urea-formaldehyde resin reactor.
Be provided with low-speed agitator in the described stirring system, described low-speed agitator periphery is provided with high speed agitator.
Described stirring system top is provided with urea-formaldehyde resin import, the import of inorganic mineral powder, water inlet and inorganic mineral dust-removal system, and the bottom is provided with the mixed glue solution outlet.
In order to reduce dust, the inorganic mineral powder transports and joins in the process of stirring system, and the supply line top is provided with dust hood, and stirring system is provided with inorganic mineral powder suction port, all can the inorganic mineral powder of kicking up be recovered to dust-removal system by blower fan.
Be provided with filtering system between described stirring system and the hold tank.
Described hold tank is provided with agitator.
Be provided with 3 around the described hold tank and return sebific duct, described time sebific duct axially with through the tangent line that returns Jiao Kou on the hold tank becomes 30～45° angle, each returns sebific duct and constantly extracts the hold tank that reinjects behind the mixed glue solution out by the glue pump from hold tank, in hold tank, will form eddy current like this, thereby reach the purpose that prevents inorganic mineral powder precipitation.
Embodiment 1
Fig. 1 is UFIM sizing agent preparation system sketch described in the utility model.As shown in Figure 1, described UFIM sizing agent preparation system comprises successively by pipeline connection stirred pot 1, strainer 17, hold tank 2, strainer 27.
Described stirred pot 1 top is provided with urea-formaldehyde resin import 13, inorganic mineral powder import 15, water inlet 14 and inorganic mineral dedusting mouth 16, and the bottom is provided with mixed glue solution outlet 18.
Be provided with low-speed agitator 11 in the described stirred pot 1, described low-speed agitator 11 peripheries are provided with high speed agitator 12.
Also be provided with urea-formaldehyde resin reactor (not shown) before described stirred pot 1, described reactor is identical with existing urea-formaldehyde resin reactor.
Be provided with agitator 21 in the described hold tank 2, top is provided with glue inlet tube 22, be provided with 3 around the hold tank 2 and return sebific duct 23, described time sebific duct 23 axially with through the tangent lines that return Jiao Kou on the hold tank 2 becomes 30-45 ° of angle, and each returns sebific duct 23 by glue pump 24 hold tank 2 that constantly reinjects behind the extraction mixed glue solution from hold tank 2.
Inorganic mineral bean sheet jelly band conveyor 7 tops are provided with dust hood 8, and supply line, stirring system 1 are provided with inorganic mineral powder suction port 15, all can the inorganic mineral powder of kicking up be recovered to dust-removal system 10 by blower fan 9.
Specifically take preparation UFIM sizing agent as example, used preparation system and preparation method are as follows:
(1) formaldehyde with 15000kg injects reactor from the formaldehyde inlet, starts agitator, adds sodium hydroxide from the sodium hydroxide inlet pH is transferred to 7.0.
(2) from the urea of urea inlet adding 5400kg, slowly pass into steam by steam port and heat up, stir and survey the pH value after 5 minutes, be controlled in 8.5 scopes; Be warmed up to 68 ℃ of steam offs.
(3) naturally heat up, survey the pH value in the time of 80 ℃, be controlled at 6.6 scopes, 90 ℃ of lower insulations 30 minutes.
(4) slowly add about about 20% the formic acid of 5kg concentration from the formic acid inlet, the pH value is transferred to 5.2.
(5) 92 ℃ of lower reactions 120 minutes, when viscosity reach 18 seconds/30 ℃ the time, add sodium hydroxide from the sodium hydroxide inlet immediately pH value be transferred to 7.0, and lower the temperature.
(6) when temperature drops to 80 ℃, add 2400kg urea from the urea inlet, insulation is 20 minutes in the time of 75 ℃.
(7) be cooled to 75 ℃, from the urea of urea inlet adding 2200kg, 65 ℃ of lower insulations 15 minutes.Add sodium hydroxide from the sodium hydroxide inlet pH value is transferred to 7.5, injected water is cooled to below 40 ℃ for subsequent use.
(8) urea-formaldehyde resin (work in-process) is injected stirred pot 1 from work in-process inlet 13.Water and half-finished weight ratio are 1:5～15.Start rotary conveyor 7 325 purpose inorganic mineral powder are added entrance 15 adding stirred pots 1.Inorganic mineral powder and work in-process weight ratio are 1:0.8.Composite for inorganic mineral and work in-process can fully be mixed, stirred pot 1 is except being provided with low-speed agitator 11, also at the small-sized high speed agitator 12 of the peripheral addition of stirred pot 1 one.Start low-speed agitator 11 and the high speed agitator 12 of stirred pot 1 inside when injecting the inorganic mineral powder.The inorganic mineral powder transports and joins in the process of stirred pot, starts blower fan 9 the inorganic mineral powder of kicking up is recovered to sack cleaner 10 by inorganic mineral powder suction port 16 and dust hood 8 collections.
(9) open valve the mixed glue solution in the stirred pot 1 is exported 18 from mixed glue solution, by glue pump 26 mixed glue solution is delivered to hold tank 2 from glue-feeder 22, glue is through passing through minute quantity impurity and the conglomeration inorganic mineral powder of strainer 17 filtering polymerization glues before the glue pump, prevent inorganic mineral powder generation secondary agglomeration and precipitation in the mixed glue solution, turn on agitator 21.In addition, several times sebific duct 23 is set around hold tank 2, return sebific duct and axially with through the tangent line that returns Jiao Kou on the hold tank 2 become 30～45° angle, each sebific duct is constantly extracted the hold tank 2 that reinjects behind the mixed glue solution out by 1 glue pump 24 from hold tank 2, in hold tank 2, will form eddy current like this, thereby reach the purpose that prevents inorganic mineral powder precipitation.Simultaneously, because the effect of eddy current can produce friction between the composition in the mixed glue solution, frictional heat can make the polymeric gel liquid temp reach 30～40 ℃, has played the effect of preheating sizing agent.Mixed glue solution in the hold tank 2 can be to the vegetable fibre board assembly line for glue from mixed glue solution outlet 25.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. the preparation system of a UFIM sizing agent, it is characterized in that, it comprises successively the urea-formaldehyde resin and inorganic mineral powder mixing and stirring system, hold tank that links to each other by pipeline, is equipped with several times sebific duct around the described hold tank, described time sebific duct and described hold tank formation circulation loop.
2. the preparation system of UFIM sizing agent according to claim 1 is characterized in that, also is provided with the urea-formaldehyde resin reactor before described stirring system.
3. the preparation system of UFIM sizing agent according to claim 1 and 2 is characterized in that, is provided with high speed agitator and low-speed agitator in the described stirring system, and described high speed agitator is positioned at the low-speed agitator periphery.
4. the preparation system of UFIM sizing agent according to claim 3 is characterized in that, described stirring system top is provided with urea-formaldehyde resin import, the import of inorganic mineral powder, water inlet and inorganic mineral dust-removal system, and the bottom is provided with the mixed glue solution outlet.
5. the preparation system of UFIM sizing agent according to claim 1 and 2 is characterized in that, is provided with filtering system between described stirring system and the hold tank.
6. the preparation system of UFIM sizing agent according to claim 1 is characterized in that, is provided with agitator in the described hold tank.
7. the preparation system of UFIM sizing agent according to claim 1 is characterized in that, is provided with several times sebific duct around the described hold tank, and described time sebific duct axially with through the tangent line that returns Jiao Kou on the intermediate storage tank becomes 30～45° angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320292272 CN203238212U (en) | 2013-05-27 | 2013-05-27 | Preparation method of UFIM (urea-formaldehyde-inorganic mineral) adhesive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320292272 CN203238212U (en) | 2013-05-27 | 2013-05-27 | Preparation method of UFIM (urea-formaldehyde-inorganic mineral) adhesive |
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| CN203238212U true CN203238212U (en) | 2013-10-16 |
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| CN 201320292272 Withdrawn - After Issue CN203238212U (en) | 2013-05-27 | 2013-05-27 | Preparation method of UFIM (urea-formaldehyde-inorganic mineral) adhesive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232827A (en) * | 2013-05-27 | 2013-08-07 | 新凯骅实业发展有限公司 | System for preparing UFIM (Urea-Formaldehyde-Inorganic Mineral) adhesive |
| CN105233771A (en) * | 2015-10-13 | 2016-01-13 | 广东裕田霸力科技股份有限公司 | Adhesive production system |
-
2013
- 2013-05-27 CN CN 201320292272 patent/CN203238212U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232827A (en) * | 2013-05-27 | 2013-08-07 | 新凯骅实业发展有限公司 | System for preparing UFIM (Urea-Formaldehyde-Inorganic Mineral) adhesive |
| CN105233771A (en) * | 2015-10-13 | 2016-01-13 | 广东裕田霸力科技股份有限公司 | Adhesive production system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20140409 |
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| RGAV | Abandon patent right to avoid regrant |