CN204019789U - A kind of process equipment of fire-retardant master granule - Google Patents
A kind of process equipment of fire-retardant master granule Download PDFInfo
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- CN204019789U CN204019789U CN201420407121.3U CN201420407121U CN204019789U CN 204019789 U CN204019789 U CN 204019789U CN 201420407121 U CN201420407121 U CN 201420407121U CN 204019789 U CN204019789 U CN 204019789U
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- fire
- melt
- master granule
- conveying passage
- retardant master
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Abstract
The utility model discloses a kind of process equipment of fire-retardant master granule, comprise the metering feed device connected successively, batch mixer and granulation unit, described metering feed device comprises powder metering feeding machine, plastic melt metering feeding machine, booster pump and feeding rack, powder conveying passage and melt Conveying passage is provided with in described feeding rack, described powder metering feeding machine is connected with batch mixer by powder conveying passage, described plastic melt metering feeding machine is by booster pump and melt Conveying expanding channels, the discharging opening of described melt Conveying passage is connected with batch mixer, the discharging opening of described melt Conveying passage is provided with orifice plate.The utility model improves uniformity and the homogeneity of fire retardant in fire-retardant master granule, thus improves the quality of fire-retardant master granule.
Description
Technical field
The utility model relates to plastic processing technology, is specifically related to a kind of process equipment of fire-retardant master granule.
Background technology
Fire protecting performance plastic flame method of modifying being improved to plastics often by the product adding fire retardant or flame-retardant master batch and so on more satisfactory at present.Fire-retardant master granule is through the combination of multiple fire-retardant composition, modification and synergistic effect on the basis of fire retardant, add certain plastic carrier, and by twin-screw or three-screw extruder through mixing, extrude, granulation and obtained a kind of granular product.Fire-retardant master granule have flame retarding efficiency high, easy to use, with resin compatible good, reduce costs, improve the advantages such as goods added values, all many-sided advantages make its effective substitute having become conventional flame retardant and by a large amount of granulations being applied to plastics, extrude, the various aspects such as injection moulding.The flame-retardant master batch applied at present is based on halogen system (Br, Cl), phosphorus system (red phosphorus, phosphorus compound etc.), nitrogen system (being commonly called expansion type flame-retarding masterbatch) and inorganic fire-retarded masterbatch (aluminium hydroxide, magnesium hydroxide etc.).The flame retardant agent content of fire-retardant master granule usually containing 50-80%, high flame retardant agent content is easy to cause fire retardant dispersion in fire-retardant master granule uneven, the impact of the fire retardant dispersion uneven fire resistance on subsequent product is very large, and the dispersing uniformity of fire retardant and homogeneity will affect the quality of fire-retardant master granule.
Utility model content
The purpose of this utility model is the deficiency existed to overcome above prior art, provides a kind of simple and reasonable for structure, makes the process equipment of the finely dispersed fire-retardant master granule of fire retardant.
The purpose of this utility model is realized by following technical scheme: the process equipment of this fire-retardant master granule, comprise the metering feed device connected successively, batch mixer and granulation unit, described metering feed device comprises powder metering feeding machine, plastic melt metering feeding machine, booster pump and feeding rack, powder conveying passage and melt Conveying passage is provided with in described feeding rack, described powder metering feeding machine is connected with batch mixer by powder conveying passage, described plastic melt metering feeding machine is by booster pump and melt Conveying expanding channels, the discharging opening of described melt Conveying passage is connected with batch mixer, the discharging opening of described melt Conveying passage is provided with orifice plate.
Preferably, for further increasing the atomizing effect of plastic melt, namely further increase the uniformity that fire retardant powder mixes with plastic melt, described orifice plate is provided with the through hole of multiple connection orifice plate top and bottom, and the aperture of described through hole is 0.3mm ~ 0.8mm.
Preferably, the uniformity mixed with plastic melt for raising fire retardant powder and homogeneity, described batch mixer comprises casing, rotary body, electric rotating machine, stirring motor and the first paddle, and inner chamber established by described casing, and the lower end of described casing is provided with the opening be connected with granulation unit; Described rotary body is installed in inner chamber, and described rotary body is connected with electric rotating machine; Described rotary body is provided with stir chamber, and described first paddle inserts stir chamber, and described first paddle is connected with stirring motor; Described powder conveying passage is all connected with stir chamber with melt Conveying passage, described stir chamber and inner space.
Preferably, described rotary body comprises the cylindrical portion and base plate that top and bottom are communicated with, and the lower end of described base plate and cylindrical portion is tightly connected formation stir chamber, and described base plate is connected with the rotating shaft of electric rotating machine; Described base plate and cylindrical portion are integrally formed.Adopt this to design, structure is simple, facilitates processing and fabricating.
Preferably, the upper end of described inner chamber is provided with dividing plate, has spacing between the upper surface of described rotary body and dividing plate, and the size of this spacing is 10mm ~ 50mm.Adopt this to design, this ensures that the mixture being thrown out of stir chamber falls into inner chamber, improves reliability.
Preferably, for improving mixing effect further, the lower end of described rotary body is provided with the second paddle.
Preferably, for further improving the uniformity that fire retardant powder mixes with plastic melt, described inner chamber is provided with temperature control system, and described temperature control system comprises heater coil, cooling device and temperature sensor, and described heater coil is all connected with temperature sensor with cooling device.
Preferably; described granulation unit comprises Melt Pump, single screw extrusion machine and comminutor; the charging aperture of described Melt Pump is connected with batch mixer, and the discharging opening of described Melt Pump is connected with the charging aperture of single screw extrusion machine, and the discharging opening of described single screw extrusion machine is connected with comminutor.
Preferably, the processing method of described fire-retardant master granule, comprises the following steps:
(1) fire retardant powder and plastic melt is added respectively to powder metering feeding machine and plastic melt metering feeding machine;
(2) start-up temperature control system, make inner chamber keep uniform temperature value, this temperature value is higher than the fusing point 50 ° ~ 100 ° of plastic melt.
(3) start electric rotating machine and stirring motor, and the rotation direction of rotary body is contrary with the rotation direction of the first paddle;
(4) open powder metering feeding machine and plastic melt metering feeding machine simultaneously, then fire retardant powder is by entering stir chamber after powder conveying passage, and plastic melt is increased after pump extracts, more successively by entering stir chamber after melt Conveying passage and orifice plate; Concrete, the fire retardant powder that order enters stir chamber is consistent with the mass ratio between plastic melt and formula Design ratio;
(5) the fire retardant powder and the plastic melt that enter stir chamber are stirred formation mixture, and along with constantly adding of fire retardant powder and plastic melt, then mixture is thrown out of stir chamber under the influence of centrifugal force, falls into inner chamber;
(6) mixture falling into inner chamber is carried out secondary agitation by the second paddle;
(7) Melt Pump is started; the mixture being then positioned at inner chamber is pumped to extruder by Melt Pump; these mixtures are extruded machine again and extrude and be delivered to pelleter, again by dehydration after the mixture pelletizing that stock-cutter is extruded the machine of being extruded, finally make fire-retardant master granule.
Preferably, in step (3), described in the velocity of rotation of turning be 100rpm ~ 500rpm, the velocity of rotation of the first paddle is 500rpm ~ 1000rpm.
The utility model has following advantage relative to prior art:
The process equipment of fire-retardant master granule of the present utility model is by increasing the combination of booster pump and orifice plate, thus plastic melt is sprayed in melt Conveying passage with vaporific form, this makes plastic melt fully contact with fire retardant powder, fire retardant powder is made better to be scattered in plastic melt, therefore improve uniformity and the homogeneity of fire retardant in fire-retardant master granule, improve the quality of fire-retardant master granule.The utility model is provided with rotary body and the first paddle, and rotary body and the first paddle rotate backward mutually, then fire retardant powder and plastic melt are stirred and form mixture and can be sufficiently agitated, and mixture can be carried out secondary agitation, therefore further increase uniformity and the homogeneity of fire retardant in fire-retardant master granule, improve the quality of fire-retardant master granule.The process equipment of fire-retardant master granule of the present utility model comprises the metering feed device, batch mixer and the granulation unit that connect successively, and all parts structure is simple, facilitates processing and fabricating, installs and easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the process equipment of fire-retardant master granule of the present utility model.
Fig. 2 is the structural representation of mixer of the present utility model.
Fig. 3 is the top view of the utility model mixer.Electric rotating machine and stirring motor is not drawn in this figure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The process equipment of fire-retardant master granule as depicted in figs. 1 and 2, comprise the metering feed device 1 connected successively, batch mixer 2 and granulation unit 3, described metering feed device 1 comprises powder metering feeding machine 11, plastic melt metering feeding machine 12, booster pump 13 and feeding rack 14, powder conveying passage 141 and melt Conveying passage 142 is provided with in described feeding rack 14, described powder metering feeding machine 11 is connected with batch mixer 2 by powder conveying passage 141, described plastic melt metering feeding machine 12 is connected with melt Conveying passage 142 by booster pump 13, the discharging opening of described melt Conveying passage 142 is connected with batch mixer 2, the discharging opening of described melt Conveying passage 142 is provided with orifice plate 4.For boosting productivity, the quantity of metering feed device 1 is 4 ~ 5 times of material variety in fire-retardant master granule formula.In the present embodiment, fire-retardant master granule formula contains two kinds of fire retardant powders and a kind of plastic melt, therefore in the present embodiment, the quantity of metering feed device 1 is 12.Wherein in each metering feed device, powder metering feeding machine has 2, and plastic melt metering feeding machine
For further increasing the atomizing effect of plastic melt, namely further increase the uniformity that fire retardant powder mixes with plastic melt, described orifice plate 4 is provided with the through hole of multiple connection orifice plate top and bottom, and the aperture of described through hole is 0.5mm.
The uniformity mixed with plastic melt for raising fire retardant powder and homogeneity, described batch mixer 2 comprises casing 21, rotary body 22, electric rotating machine 23, stirring motor 24 and the first paddle 25, inner chamber 211 established by described casing 21, and the lower end of described casing 21 is provided with the opening 212 be connected with granulation unit 3; Described rotary body 22 is installed in inner chamber 211, and described rotary body 22 is connected with electric rotating machine 23; Described rotary body 22 is provided with stir chamber 221, and described first paddle 25 inserts stir chamber 221, and described first paddle 25 is connected with stirring motor 24; Described powder conveying passage 141 is all connected with stir chamber 221 with melt Conveying passage 142, and described stir chamber 221 is communicated with inner chamber 211.Concrete, as shown in Figure 3, the first paddle 25 comprises three blades and a rotating shaft, and rotating shaft is all fixed in one end of described three blades, and described three blades are uniformly distributed with shaft circumference.
As shown in Figures 2 and 3, described rotary body 22 comprises cylindrical portion 222 and the base plate 223 of top and bottom connection, and described base plate 223 is tightly connected with the lower end of cylindrical portion 222 and forms stir chamber 221, and described base plate 223 is connected with the rotating shaft of electric rotating machine 23; Described base plate 223 and cylindrical portion 222 are integrally formed.Adopt this to design, structure is simple, facilitates processing and fabricating.
The upper end of described inner chamber 211 is provided with dividing plate 5, has spacing between the upper surface of described rotary body 22 and dividing plate 5, and the size of this spacing is 30mm.Adopt this to design, this ensures that the mixture being thrown out of stir chamber 221 falls into inner chamber 211, improves reliability.
For improving mixing effect further, the lower end of described rotary body 22 is provided with the second paddle 6.Concrete, the second paddle 6 is cross-shaped paddle.
For further improving the uniformity that fire retardant powder mixes with plastic melt, described inner chamber 211 is provided with temperature control system, described temperature control system comprises heater coil, cooling device and temperature sensor, and described heater coil is all connected with temperature sensor with cooling device.
Described granulation unit 3 comprises Melt Pump 31, single screw extrusion machine 32 and comminutor 33; the charging aperture of described Melt Pump 31 is connected with batch mixer 32; the discharging opening of described Melt Pump 31 is connected with the charging aperture of single screw extrusion machine 32, and the discharging opening of described single screw extrusion machine 32 is connected with comminutor 33.
The processing method of described fire-retardant master granule, comprises the following steps:
(1) fire retardant powder and plastic melt is added respectively to powder metering feeding machine 11 and plastic melt metering feeding machine 12;
(2) start-up temperature control system, makes inner chamber 211 keep uniform temperature value, and this temperature value is higher than the fusing point 50 ° ~ 100 ° of plastic melt.
(3) start electric rotating machine 23 and stirring motor 24, and the rotation direction of rotary body 22 is contrary with the rotation direction of the first paddle 25;
(4) open powder metering feeding machine 11 and plastic melt metering feeding machine 12 simultaneously, then fire retardant powder is by entering stir chamber 221 after powder conveying passage 141, and plastic melt be increased pump take out 13 get after, more successively by entering stir chamber 221 after melt Conveying passage 142 and orifice plate 4; Concrete, the fire retardant powder that order enters stir chamber 221 is consistent with the mass ratio between plastic melt and formula Design ratio;
(5) the fire retardant powder and the plastic melt that enter stir chamber 221 are stirred formation mixture, and along with constantly adding of fire retardant powder and plastic melt, then mixture is thrown out of stir chamber 221 under the influence of centrifugal force, falls into inner chamber 211;
(6) mixture falling into inner chamber 211 is carried out secondary agitation by the second paddle 6;
(7) Melt Pump 31 is started; the mixture being then positioned at inner chamber 211 is pumped to extruder 32 by Melt Pump 31; these mixtures are extruded machine 32 again and extrude and be delivered to pelleter 33; stock-cutter 33, to being extruded after mixture pelletizing that machine 32 extrudes again by dehydration, finally makes fire-retardant master granule.
Generally speaking, plastic melt first after booster pump 13 extracts, then sprays from orifice plate 4, makes plastic melt be atomized, which increases the contact area of plastic melt and fire retardant powder, thus improve uniformity and the homogeneity of fire retardant; Then, rotary body 22 and the first paddle 25 rotate backward, and which increase mixing effect, make fire retardant powder fully mix with plastic melt further, thus further increase uniformity and the homogeneity of fire retardant; And recycle the second paddle 6 and carry out secondary agitation, this further improves uniformity and the homogeneity of fire retardant, therefore can improve the quality of fire-retardant master granule.
In step (3), described in the velocity of rotation of turning be 400rpm, the velocity of rotation of the first paddle is 800rpm.
Above-mentioned detailed description of the invention is preferred embodiment of the present utility model; can not limit the utility model; the any of other does not deviate from the technical solution of the utility model and the substitute mode of the change made or other equivalence, is included within protection domain of the present utility model.
Claims (8)
1. the process equipment of a fire-retardant master granule, it is characterized in that: comprise the metering feed device connected successively, batch mixer and granulation unit, described metering feed device comprises powder metering feeding machine, plastic melt metering feeding machine, booster pump and feeding rack, powder conveying passage and melt Conveying passage is provided with in described feeding rack, described powder metering feeding machine is connected with batch mixer by powder conveying passage, described plastic melt metering feeding machine is by booster pump and melt Conveying expanding channels, the discharging opening of described melt Conveying passage is connected with batch mixer, the discharging opening of described melt Conveying passage is provided with orifice plate.
2. the process equipment of fire-retardant master granule according to claim 1, is characterized in that: described orifice plate is provided with the through hole of multiple connection orifice plate top and bottom, and the aperture of described through hole is 0.3mm ~ 0.8mm.
3. the process equipment of fire-retardant master granule according to claim 1, it is characterized in that: described batch mixer comprises casing, rotary body, electric rotating machine, stirring motor and the first paddle, inner chamber established by described casing, and the lower end of described casing is provided with the opening be connected with granulation unit; Described rotary body is installed in inner chamber, and described rotary body is connected with electric rotating machine; Described rotary body is provided with stir chamber, and described first paddle inserts stir chamber, and described first paddle is connected with stirring motor; Described powder conveying passage is all connected with stir chamber with melt Conveying passage, described stir chamber and inner space.
4. the process equipment of fire-retardant master granule according to claim 3, it is characterized in that: described rotary body comprises cylindrical portion and the base plate of top and bottom connection, the lower end of described base plate and cylindrical portion is tightly connected formation stir chamber, and described base plate is connected with the rotating shaft of electric rotating machine; Described base plate and cylindrical portion are integrally formed.
5. the process equipment of fire-retardant master granule according to claim 3, is characterized in that: the upper end of described inner chamber is provided with dividing plate, has spacing between the upper surface of described rotary body and dividing plate, and the size of this spacing is 10mm ~ 50mm.
6. the process equipment of fire-retardant master granule according to claim 3, is characterized in that: the lower end of described rotary body is provided with the second paddle.
7. the process equipment of fire-retardant master granule according to claim 3, it is characterized in that: described inner chamber is provided with temperature control system, described temperature control system comprises heater coil, cooling device and temperature sensor, and described heater coil is all connected with temperature sensor with cooling device.
8. the process equipment of fire-retardant master granule according to claim 1; it is characterized in that: described granulation unit comprises Melt Pump, single screw extrusion machine and comminutor; the charging aperture of described Melt Pump is connected with batch mixer; the discharging opening of described Melt Pump is connected with the charging aperture of single screw extrusion machine, and the discharging opening of described single screw extrusion machine is connected with comminutor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407121.3U CN204019789U (en) | 2014-07-22 | 2014-07-22 | A kind of process equipment of fire-retardant master granule |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420407121.3U CN204019789U (en) | 2014-07-22 | 2014-07-22 | A kind of process equipment of fire-retardant master granule |
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| CN204019789U true CN204019789U (en) | 2014-12-17 |
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| CN201420407121.3U Withdrawn - After Issue CN204019789U (en) | 2014-07-22 | 2014-07-22 | A kind of process equipment of fire-retardant master granule |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139467A (en) * | 2014-07-22 | 2014-11-12 | 广州市合诚化学有限公司 | Flame-retardant masterbatch processing device and method |
-
2014
- 2014-07-22 CN CN201420407121.3U patent/CN204019789U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139467A (en) * | 2014-07-22 | 2014-11-12 | 广州市合诚化学有限公司 | Flame-retardant masterbatch processing device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |