CN103894274B - A kind of Ginding process of thermoplastic and device thereof - Google Patents
A kind of Ginding process of thermoplastic and device thereof Download PDFInfo
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- CN103894274B CN103894274B CN201210582228.7A CN201210582228A CN103894274B CN 103894274 B CN103894274 B CN 103894274B CN 201210582228 A CN201210582228 A CN 201210582228A CN 103894274 B CN103894274 B CN 103894274B
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Abstract
The present invention discloses a kind of Ginding process and device thereof of thermoplastic, it is characterized in that the plastic powders that needs grind enters in reinforced surge bunker, to be delivered in electric magnetic iron remover after scrap iron removing by conveying worm, enter in rotary discharger, by the rotor cavity of the feeding grinder of plastic powders continuous uniform; Utilize rotor outer ring to be uniformly distributed the blade of High Rotation Speed, under the effect of knife cut power, chip grinding is carried out to plastic with plasticity, avoid extruding in flakes; Simultaneously because of shear action, the high temperature pulverizing qualified plastics fine powder generation is cooled rapidly by cold air, and makes plastics fine powder be in the fluidized state of high degree of dispersion.Invention prevents plastics fine powder Yin Gaowen and bond, guaranteeing that plastic with plasticity characteristic does not change, overcome conventional mechanical formula grinding technique defect, improve the quality of plastics fine powder.
Description
Technical field
What the present invention proposed is a kind of Ginding process of thermoplastic, relates to the air-flow crushing of plastic with plasticity and the technical field of cooling in plastic device.
Background technology
SEBS plastics are the English abbreviation of " hydrogenated styrene-butadiene-styrene block copolymers ".It take polystyrene as end segment, the ethene obtained with polybutadiene hydrogenation-determine the linear three embedding copolymers that alkene copolymer is middle spring block, and it containing unsaturated double-bond, does not have good plasticity and high resiliency.Usually, plastic with plasticity adopts conventional mechanical formula grinding technique (as ball mill, roll mill etc.), due to the plasticity of plastics, first easily that plastic extrusion is in blocks, then due to the high resiliency of plastics, cause grinding, and high temperature is produced in process of lapping, affect the quality of plastics.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of Ginding process of thermoplastic.
Another object of the present invention is to the device providing the method to use.
The object of the present invention is achieved like this:
A Ginding process for thermoplastic, the steps include:
Temperature 60 C needs the plastic powders of grinding to enter in reinforced surge bunker after drying, is delivered in electric magnetic iron remover, after scrap iron removing, enters in rotary discharger, by the rotor cavity of the feeding grinder of plastic powders continuous uniform by conveying worm; Simultaneous temperature 20 DEG C of surrounding airs are after air cleaner purification, be divided into three tunnels as fluidisation and cooling plastic powder conveying wind and enter venturi conveyer, and under the 3rd road Cold air mass influence, grinder is ground qualified after plastics fine powder be delivered in sack cleaner, the qualified plastics fine powder collected enters next procedure through rotary discharger; After purification, temperature 40 DEG C of air are emptying through air-introduced machine.
Realize the device that said method uses, comprising:
An air cleaner, together enters do conveying wind after purification of air with rotary discharger discharging plastic powders in the rotor cavity in grinder, grinds plastic powders;
A reinforced surge bunker, for loading the plastic powders needing grinding;
A conveying worm needs the plastic powders of grinding to be delivered in electric magnetic iron remover reinforced surge bunker;
An electric magnetic iron remover, for reject in plastic powders with iron filings;
A grinder (patent No.: ZL201220296751.9), is mainly used in grinding rotary discharger discharging plastic powders, as the tailored version grinder of plastic with plasticity, wherein transmission system primary drive system, housing, rotor and screening cage four major part composition, wherein transmission system is primarily of motor, belt, belt pulley, rotating shaft, bearing, bearing housing forms, bearing loads in bearing housing, rotor the rotating shaft of motor is equipped with through bearing, and be connected with belt pulley by belt, motor, belt, belt pulley bearing housing two ends are provided with labyrinth seal and oil sealing, rotor side is provided with hermetic seal, the side of housing is provided with charging aperture, bottom is provided with discharging opening and cooling air import, rotor outer ring is uniform-distribution with one group of blade, blade is by the first ring flat-plate, support bar, first gripper shoe is fixed, ring seat is connected with the first gripper shoe, and couple together with the rotating shaft of transmission system, in screening cage, Screening Network is fixed in installation second ring flat-plate, the first support ring flat-plate, second supports on ring flat-plate, gripper shoe inner ring.
A venturi conveyer is by air cleaner air-flow from the coarse to fine to accelerate the flow velocity of air-flow, produces suction-operated to the plastic powders near the mouth of pipe;
A sack cleaner carries out gas solid separation by the plastics fine powder after qualified with in company with the air entered;
An air-introduced machine, its effect is the evacuate air be separated by sack cleaner;
Two rotary dischargers, a rotary discharger, its effect controls to reject discharging changeover valve in iron filings plastic powders; Another rotary discharger is that the qualified plastics fine powder collected by sack cleaner controls discharging, enters next procedure.
feature of the present invention:
The present invention adopts tailored version grinding technics and equipment technology, when plastic with plasticity enters in the rotor cavity of grinder from the side inlet of grinder together with cold air, utilize the equally distributed blade in rotor outer ring of High Rotation Speed, to plastic with plasticity chip grinding under the effect of knife cut power, avoid extruding in flakes; Simultaneously because of shear action, the high temperature pulverizing qualified plastics fine powder generation is cooled rapidly by cold air, and makes plastics fine powder be in the fluidized state of high degree of dispersion, prevents plastics fine powder Yin Gaowen and bonds, guaranteeing that plastic with plasticity characteristic does not change.Solve the defect of conventional mechanical formula grinding technique.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Wherein: 1-air cleaner, 2-feeds in raw material surge bunker, 3-conveying worm, 4-electric magnetic iron remover, 5-rotary discharger, 6-grinder, 7-venturi conveyer, 8-sack cleaner, 9-air-introduced machine, 10-rotary discharger.
Fig. 2 is the front view of grinder in Fig. 1;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is that in Fig. 2, blade is fixed on schematic diagram in the first ring flat-plate, support bar, gripper shoe;
Fig. 5 is the side view of Fig. 4;
Fig. 6 sieves Screening Network in cage to be fixed in installation second ring flat-plate, the first support ring flat-plate, the second support ring flat-plate, gripper shoe inner ring schematic diagram in Fig. 2.
Fig. 7 is the side view of Fig. 6.
Wherein: 11-discharging opening, the import of 12-cooling air, 13-housing, 14-rotor, 15-sieve cage, 6-grinder, 16-belt, 17-motor, 18-hermetic seal, 19-bearing housing, 20-labyrinth seal, 21-belt pulley, 22-oil sealing, 23-rotating shaft, 24-bearing, 25-first ring flat-plate, 26-support bar, 27-first gripper shoe, and 28-blade, 29-ring seat, 30-second ring flat-plate, 31-first support ring flat-plate, 32-second supports ring flat-plate, 33-gripper shoe inner ring, 34-Screening Network.
Detailed description of the invention
The equipment that the present invention adopts is except grinder 6, miscellaneous equipment: air cleaner 1, reinforced surge bunker 2, conveying worm 3, electric magnetic iron remover 4, rotary discharger 5, venturi conveyer 7, sack cleaner 8, air-introduced machine 9, rotary discharger 10 is conventional equipment, can use by standard type selecting and process matching.
Below in conjunction with accompanying drawing 1, can the technological process of Ginding process of thermoplastic be described below a kind of:
Temperature ~ 60 DEG C need the plastic powders of grinding to enter in reinforced surge bunker 2 after drying, are delivered in electric magnetic iron remover 4 by conveying worm 3, and preventing has iron filings to damage grinder 6 in plastic powders.After scrap iron removing, enter in rotary discharger 5, by the rotor cavity of the feeding grinder 6 of plastic powders continuous uniform.Grinder 6 is primarily of transmission system, housing 13, rotor 14 and screening cage 15 4 major part composition, wherein transmission system is primarily of motor 17, belt 16, belt pulley 21, rotating shaft 23, bearing 24, bearing housing 19 forms, bearing 24 loads in bearing housing 19, rotor 14 rotating shaft 23 of motor 17 is equipped with through bearing 24, and be connected with belt pulley 21 by belt 16, motor 17, belt 16, belt pulley 21 bearing housing 19 two ends are provided with labyrinth seal 20 and oil sealing 22, rotor 14 side is provided with hermetic seal 18, the side of housing 13 is provided with charging aperture, bottom is provided with discharging opening 11 and cooling air import 12, rotor 14 outer ring is uniform-distribution with one group of blade 28, blade 28 is by the first ring flat-plate 25, support bar 26, first gripper shoe 27 is fixed, ring seat 29 is connected with the first gripper shoe 27, and couple together with the rotating shaft 23 of transmission system, in screening cage 15, Screening Network 34 is fixed on installation second ring flat-plate 30, first support ring flat-plate 31, second support ring flat-plate 32, gripper shoe inner ring 33.Temperature ~ 20 DEG C surrounding air is divided into three tunnels after air cleaner 1 purifies, and the first via enters in the plastic powders pipeline of rotary discharger 5 bottom, as fluidisation and cooling plastic powder conveying wind, together enters in the rotor cavity in grinder 6 with plastic powders; Second tunnel is as the dispersion of plastics fine powder after pulverizing in the rotor cavity of grinder 6 and cooling air, enter in rotor 14 cavity of grinder 6 together with cold air from the side inlet of grinder 6,3rd tunnel, as pneumatic convey and cooling air, enters in the venturi conveyer 7 of grinder 6 bottom.In the rotor cavity of grinder 6, pulverize after qualified plastics fine powder mixes with the cold air on the first via, the second tunnel and together enter venturi conveyer 7, and under the 3rd road Cold air mass influence, the blade of High Rotation Speed is evenly distributed with by rotor 14 outer ring, under the effect of knife cut power, chip grinding is carried out to plastic with plasticity, enter the cold air of rotor 14 cavity to the plastics fine powder fluidisation after grinding and cooling simultaneously, cooling air is constantly sent into from grinder 6 bottom coohng wind inlet 12, to reduce plastics fine powder temperature, guarantee that plastics fine powder characteristic does not change.Pulverize qualified plastics fine powder to require to change according to product cut size through Screening Network 34(Screening Network 34 in screening cage 15 together with cold air); Be drawn onto the discharging opening of grinder 6 by the negative pressure that air-introduced machine 9 produces, underproof plastics fine powder grinds under the equally distributed blade effect in rotor 14 outer ring again along with air stream, again screens in screening cage 5 and is separated; Plastics fine powder after qualified is delivered in sack cleaner 8, and the qualified plastics fine powder collected enters next procedure through rotary discharger 10; After purification, temperature ~ 40 DEG C air is emptying through air-introduced machine 9.
Claims (2)
1. can the Ginding process of thermoplastic, the steps include:
Temperature 60 C needs the plastic powders of grinding to enter in reinforced surge bunker (2) after drying, after being delivered to the middle scrap iron removing of electric magnetic iron remover (4) by conveying worm (3), enter in rotary discharger (5), by the rotor cavity of the feeding grinder (6) of plastic powders continuous uniform; Simultaneous temperature 20 DEG C of surrounding airs are after air cleaner (1) purification, be divided into three tunnels as fluidisation and cooling plastic powder conveying wind and enter venturi conveyer (7), and under the 3rd road Cold air mass influence, grinder (6) is ground qualified after plastics fine powder be delivered in sack cleaner (8), the qualified plastics fine powder collected enters next procedure through rotary discharger (10); After purification, temperature 40 DEG C of air are emptying through air-introduced machine (9).
2. realize the device that claim 1 method uses, comprising:
An air cleaner (1), together enters in the rotor cavity in grinder (6) by making conveying wind after purification of air with rotary discharger (5) discharging plastic powders;
A reinforced surge bunker (2), for loading the plastic powders needing grinding;
A conveying worm (3), needs the plastic powders of grinding to be delivered in electric magnetic iron remover (4) surge bunker that feeds in raw material (2);
An electric magnetic iron remover (4), the iron filings in plastic powders are rejected in its effect;
A grinder (6) is mainly used in grinding rotary discharger (5) discharging plastic powders, as the tailored version grinder of plastic with plasticity;
A venturi conveyer (7), being positioned at air cleaner (1) bottom, is by air cleaner (1) air-flow from the coarse to fine to accelerate the flow velocity of air-flow, produces suction-operated to the plastic powders near the mouth of pipe;
A sack cleaner (8) carries out gas solid separation by the plastics fine powder after qualified with in company with the air entered;
An air-introduced machine (9), its effect is the evacuate air be separated by sack cleaner (8);
Two rotary dischargers, a rotary discharger (5), its effect controls to reject discharging changeover valve in iron filings plastic powders; Another rotary discharger (10) is that the qualified plastics fine powder collected by sack cleaner (8) controls discharging, enters next procedure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210582228.7A CN103894274B (en) | 2012-12-28 | 2012-12-28 | A kind of Ginding process of thermoplastic and device thereof |
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| CN201210582228.7A CN103894274B (en) | 2012-12-28 | 2012-12-28 | A kind of Ginding process of thermoplastic and device thereof |
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| CN103894274A CN103894274A (en) | 2014-07-02 |
| CN103894274B true CN103894274B (en) | 2015-10-07 |
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| CN107057728A (en) * | 2017-06-16 | 2017-08-18 | 南京塔川化工设备有限公司 | A kind of tar cinder Non-oxygen pyrolytic and tar recovery system and its method |
| CN113600819B (en) * | 2021-09-30 | 2021-12-07 | 荷兴电子科技(南通)有限公司 | Electronic product processing metal powder processing apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201997376U (en) * | 2010-12-20 | 2011-10-05 | 浙江万盛新型材料有限公司 | Dry-method superfine crushing system for material containing carbon |
| CN102327804A (en) * | 2011-07-06 | 2012-01-25 | 洛阳宇航重工机械有限公司 | Closed type production line device and method for crushing aluminum oxide crusted blocks |
| CN102527487A (en) * | 2011-01-12 | 2012-07-04 | 浙江万盛新型材料有限公司 | Blasting control process for dry-method superfine smashing process for carbon-contained material |
| CN102775081A (en) * | 2012-08-24 | 2012-11-14 | 江苏省一夫新材料科技有限公司 | Gypsum calcination system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001121127A (en) * | 1999-10-29 | 2001-05-08 | Nkk Corp | Resource recovery method for domestic waste |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201997376U (en) * | 2010-12-20 | 2011-10-05 | 浙江万盛新型材料有限公司 | Dry-method superfine crushing system for material containing carbon |
| CN102527487A (en) * | 2011-01-12 | 2012-07-04 | 浙江万盛新型材料有限公司 | Blasting control process for dry-method superfine smashing process for carbon-contained material |
| CN102327804A (en) * | 2011-07-06 | 2012-01-25 | 洛阳宇航重工机械有限公司 | Closed type production line device and method for crushing aluminum oxide crusted blocks |
| CN102775081A (en) * | 2012-08-24 | 2012-11-14 | 江苏省一夫新材料科技有限公司 | Gypsum calcination system |
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