CN111603963A - Online premixing system for raw materials of polyurethane insulation board - Google Patents
Online premixing system for raw materials of polyurethane insulation board Download PDFInfo
- Publication number
- CN111603963A CN111603963A CN202010497547.2A CN202010497547A CN111603963A CN 111603963 A CN111603963 A CN 111603963A CN 202010497547 A CN202010497547 A CN 202010497547A CN 111603963 A CN111603963 A CN 111603963A
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- CN
- China
- Prior art keywords
- stirring
- material conveying
- online
- raw materials
- insulation board
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/61—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
An online premixing system for raw materials of a polyurethane insulation board comprises a feeding unit, a stirring unit and a material conveying unit; the feeding unit comprises a polyol supply tank and an isocyanate supply tank; the stirring unit comprises a V-shaped stirring bin which is formed by two stirring cylinders which are communicated; a first stirring shaft is arranged in the two stirring cylinders along the length direction of the cylinder; a perforated plate is arranged at the joint of the bottom of the V-shaped stirring bin and the discharge pipeline; a passive stirring impeller is arranged on the porous plate; the material conveying unit comprises a material conveying cylinder and a second stirring shaft, and second stirring blades and spiral conveying blades are alternately and sequentially arranged on the second stirring shaft; through setting up the churn of two slopes, be provided with first (mixing) shaft in the churn, make the premix form opposite direction's whirl above "V type" stirring storehouse, and then the fluid drives passive impeller and rotates, forms the turbulent flow below "V type" stirring storehouse for the online mixing rate of raw materials has improved work efficiency.
Description
Technical Field
The invention relates to the technical field of polyurethane production equipment, in particular to an automatic batching and feeding system of a concrete mixing plant.
Background
Polyurethanes, all known as polyurethanes, are a general term for macromolecular compounds containing recurring urethane groups in the main chain; it is prepared by the polyaddition of organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compound; because of the different structures of the polyurethane, the performances are different; by utilizing the property, the polyurethane polymer can be respectively made into plastics, rubber, fiber, paint, adhesive and the like; polyurethane foams in particular are developing very rapidly; the foam plastic is one of the main varieties of polyurethane synthetic materials, the rigid polyurethane foam plastic is prepared from polyalcohol, isocyanate and various auxiliary agents, the foam pores are mainly closed pores, and foaming gas is retained in the foam pores when a foaming agent is used, so that the rigid polyurethane foam plastic is mainly characterized by having porosity, thereby having the excellent characteristics of smaller density, light weight, heat insulation and sound insulation, high specific strength, vibration reduction and the like.
Polyurethane is generally short in foaming time, and polyester polyol or polyether polyol and isocyanate need to be uniformly mixed before foaming, wherein polyester or polyether generally has high viscosity at normal temperature, and the polyurethane synthesis temperature is generally about 90 ℃, so that polyester generally needs to be preheated and then synthesized before synthesis reaction, but polyester or polyether generally has certain viscosity near 60 ℃, so that the polyester or polyether is easy to be foamed directly and cause uneven mixing, and an online premixing device needs to be arranged to perform online mixing on the polyester polyol or polyether polyol and the isocyanate in advance.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides an online premixing system for raw materials of a polyurethane insulation board, which comprises a feeding unit, a stirring unit and a material conveying unit, wherein the feeding unit is used for feeding the raw materials into the polyurethane insulation board;
the feeding unit comprises a polyol supply tank and an isocyanate supply tank;
the stirring unit comprises a V-shaped stirring bin, and the V-shaped stirring bin is formed by communicating two stirring cylinders; a first feed port and a second feed port are respectively arranged on two opposite side walls of the two stirring cylinders, and the polyol supply tank and the isocyanate supply tank are respectively communicated with the first feed port and the second feed port through feed pipes; a first stirring shaft is arranged in the two stirring cylinders along the length direction of the cylinder, extends out of the stirring cylinders and is connected with a first driving motor, and a first stirring blade is arranged on the first stirring shaft; the bottom of the V-shaped stirring bin is communicated with the material conveying unit through a discharge pipeline; a perforated plate is arranged at the joint of the bottom of the V-shaped stirring bin and the discharge pipeline; a passive stirring impeller is arranged on the porous plate;
the material conveying unit comprises a material conveying cylinder and a second stirring shaft arranged in the material conveying cylinder, and the second stirring shaft extends out of the stirring cylinder and is connected with a second driving motor; and second stirring blades and spiral conveying blades are alternately and sequentially arranged on the second stirring shaft.
Preferably, the feeding pipeline is sequentially provided with a weighing mechanism and a delivery valve, and the delivery valve is an electromagnetic valve.
Preferably, a discharge valve is arranged on the discharge pipeline, and the discharge valve is an electromagnetic valve.
Preferably, an electric heating pipe is arranged on the side wall of the stirring cylinder.
Preferably, the tail part of the material conveying cylinder is provided with a discharge pipe.
Has the advantages that:
(1) by arranging the two inclined stirring cylinders and arranging the first stirring shaft in the stirring cylinders, the premix can form rotational flows with opposite directions above the V-shaped stirring bin, and then the fluid drives the driven stirring impeller to rotate, so that turbulent flow is formed below the V-shaped stirring bin, the online mixing speed of raw materials is accelerated, manual operation is not needed, manpower is saved, the structural design is reasonable, the cost is reduced, and the working efficiency is improved;
(2) stirring vane and helical conveying blade have set gradually alternately on the second (mixing) shaft, and helical conveying blade is when carrying the material, and stirring vane can stir for the material discontinuously, prevents that the material from appearing condensing in transportation process, influences subsequent foaming effect.
Drawings
FIG. 1 is a schematic structural diagram of an online premixing system for raw materials of a polyurethane insulation board in the invention;
in the figure, 1-feeding unit, 11-polyol supply tank, 12-isocyanate supply tank, 2-stirring unit, 21- 'V-shaped' stirring bin, 211-stirring cylinder, 22-first stirring shaft, 221-first stirring blade, 23-first driving motor, 3-material conveying unit, 31-material conveying cylinder, 32-second stirring shaft, 321-second stirring blade, 322-spiral conveying blade, 33-second driving motor, 4-discharging pipeline, 41-discharging valve, 5-porous plate, 6-passive stirring impeller, 7-electric heating pipe and 8-discharging pipe.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Referring to fig. 1, the invention provides an online premixing system for raw materials of a polyurethane insulation board, which comprises a feeding unit 1, a stirring unit 2 and a material conveying unit 3;
the feeding unit 1 comprises a polyol supply tank 11 and an isocyanate supply tank 12;
the stirring unit 2 comprises a V-shaped stirring bin 21, and the V-shaped stirring bin 21 is formed by communicating two stirring cylinders 211; a first feed inlet and a second feed inlet are respectively formed on two opposite side walls of the two stirring cylinders 211, and the polyol supply tank 11 and the isocyanate supply tank 12 are respectively communicated with the first feed inlet and the second feed inlet through a feed pipeline 13; a first stirring shaft 22 is arranged in the two stirring cylinders 211 along the length direction of the cylinders, the first stirring shaft 22 extends out of the stirring cylinders and is connected with a first driving motor 23, and a first stirring blade 221 is arranged on the first stirring shaft 22; the bottom of the V-shaped stirring bin 21 is communicated with the material conveying unit 3 through a discharge pipeline 4; a perforated plate 5 is arranged at the joint of the bottom of the V-shaped stirring bin 21 and the discharge pipeline 4; a driven stirring impeller 6 is arranged on the porous plate 5;
the material conveying unit 3 comprises a material conveying cylinder 31 and second stirring shafts 32 arranged in the material conveying cylinder 31, and the second stirring shafts 32 extend out of the stirring cylinder and are connected with second driving motors 33; the second stirring shaft 32 is provided with a second stirring blade 321 and a spiral conveying blade 322 in sequence.
In the above technical solution, the feeding pipeline 13 is sequentially provided with a weighing mechanism 131 and a delivery valve 132, and the delivery valve 132 is an electromagnetic valve.
In the above technical solution, the discharge pipe 4 is provided with a discharge valve 41, and the discharge valve 41 is an electromagnetic valve.
In the above technical solution, the side wall of the mixing drum 211 is provided with the electric heating pipe 7.
In the above technical scheme, the tail part of the material conveying cylinder 31 is provided with the discharging pipe 8.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The online premixing system for the raw materials of the polyurethane insulation board is characterized by comprising a feeding unit, a stirring unit and a material conveying unit;
the feeding unit comprises a polyol supply tank and an isocyanate supply tank;
the stirring unit comprises a V-shaped stirring bin, and the V-shaped stirring bin is formed by communicating two stirring cylinders; a first feed port and a second feed port are respectively arranged on two opposite side walls of the two stirring cylinders, and the polyol supply tank and the isocyanate supply tank are respectively communicated with the first feed port and the second feed port through feed pipes; a first stirring shaft is arranged in the two stirring cylinders along the length direction of the cylinder, extends out of the stirring cylinders and is connected with a first driving motor, and a first stirring blade is arranged on the first stirring shaft; the bottom of the V-shaped stirring bin is communicated with the material conveying unit through a discharge pipeline; a perforated plate is arranged at the joint of the bottom of the V-shaped stirring bin and the discharge pipeline; a passive stirring impeller is arranged on the porous plate;
the material conveying unit comprises a material conveying cylinder and a second stirring shaft arranged in the material conveying cylinder, and the second stirring shaft extends out of the stirring cylinder and is connected with a second driving motor; and second stirring blades and spiral conveying blades are alternately and sequentially arranged on the second stirring shaft.
2. The online premixing system for the polyurethane insulation board raw materials as claimed in claim 1, wherein a weighing mechanism and a delivery valve are sequentially arranged on the feeding pipeline, and the delivery valve is an electromagnetic valve.
3. The online premixing system for the polyurethane insulation board raw materials according to claim 1 is characterized in that a discharge valve is arranged on the discharge pipeline, and the discharge valve is an electromagnetic valve.
4. The online premixing system for the polyurethane insulation board raw materials as claimed in claim 1, wherein an electric heating pipe is arranged on the side wall of the mixing drum.
5. The online premixing system for the raw materials of the polyurethane insulation board as claimed in claim 1, wherein a discharge pipe is arranged at the tail of the material conveying cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497547.2A CN111603963A (en) | 2020-06-04 | 2020-06-04 | Online premixing system for raw materials of polyurethane insulation board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010497547.2A CN111603963A (en) | 2020-06-04 | 2020-06-04 | Online premixing system for raw materials of polyurethane insulation board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111603963A true CN111603963A (en) | 2020-09-01 |
Family
ID=72204130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010497547.2A Pending CN111603963A (en) | 2020-06-04 | 2020-06-04 | Online premixing system for raw materials of polyurethane insulation board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111603963A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107212A (en) * | 2022-07-12 | 2022-09-27 | 长虹美菱股份有限公司 | Polyurethane step-by-step premixing system for refrigerator cabinet, control method and working procedures |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2178550A1 (en) * | 1995-06-19 | 1996-12-20 | Sadao Nishibori | Reprocessed resin formed of thermoset resin formed material, method for reprocessing thermoset resin foamed material and method for molding molded article formed of the reprocessed resin |
| CN204522798U (en) * | 2015-01-07 | 2015-08-05 | 周美林 | A kind of Novel drum type blender |
| CN204638032U (en) * | 2015-05-22 | 2015-09-16 | 淮安市澳华农牧有限公司 | A kind of fodder mixing machine |
| CN106582369A (en) * | 2016-12-09 | 2017-04-26 | 云南龙谷生物科技有限公司 | Feed blending system |
| CN108636208A (en) * | 2018-05-30 | 2018-10-12 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of liquid detergent raw material adjusting mixing conveying device |
| CN109433042A (en) * | 2018-11-07 | 2019-03-08 | 湖州久智自动化技术有限公司 | A kind of production breeding feed mixing arrangement with automated packing |
| CN210584773U (en) * | 2019-07-17 | 2020-05-22 | 于开亭 | Material mixing stirring device for civil engineering and construction engineering construction |
-
2020
- 2020-06-04 CN CN202010497547.2A patent/CN111603963A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2178550A1 (en) * | 1995-06-19 | 1996-12-20 | Sadao Nishibori | Reprocessed resin formed of thermoset resin formed material, method for reprocessing thermoset resin foamed material and method for molding molded article formed of the reprocessed resin |
| CN204522798U (en) * | 2015-01-07 | 2015-08-05 | 周美林 | A kind of Novel drum type blender |
| CN204638032U (en) * | 2015-05-22 | 2015-09-16 | 淮安市澳华农牧有限公司 | A kind of fodder mixing machine |
| CN106582369A (en) * | 2016-12-09 | 2017-04-26 | 云南龙谷生物科技有限公司 | Feed blending system |
| CN108636208A (en) * | 2018-05-30 | 2018-10-12 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of liquid detergent raw material adjusting mixing conveying device |
| CN109433042A (en) * | 2018-11-07 | 2019-03-08 | 湖州久智自动化技术有限公司 | A kind of production breeding feed mixing arrangement with automated packing |
| CN210584773U (en) * | 2019-07-17 | 2020-05-22 | 于开亭 | Material mixing stirring device for civil engineering and construction engineering construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107212A (en) * | 2022-07-12 | 2022-09-27 | 长虹美菱股份有限公司 | Polyurethane step-by-step premixing system for refrigerator cabinet, control method and working procedures |
| CN115107212B (en) * | 2022-07-12 | 2023-06-20 | 长虹美菱股份有限公司 | Polyurethane step-by-step premixing system for refrigerator cabinet, control method and working procedure |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20200901 |