CN102864669A - Double-screw impregnator - Google Patents
Double-screw impregnator Download PDFInfo
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- CN102864669A CN102864669A CN2012103321128A CN201210332112A CN102864669A CN 102864669 A CN102864669 A CN 102864669A CN 2012103321128 A CN2012103321128 A CN 2012103321128A CN 201210332112 A CN201210332112 A CN 201210332112A CN 102864669 A CN102864669 A CN 102864669A
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Abstract
The invention relates to a double-screw impregnator. The impregnator mainly comprises a rack, and a mobile crowned tooth coupling, a machine barrel and two screws which are arranged on the rack, wherein first conveying helical sleeves, first extrusion helical sleeves, second conveying helical sleeves, second extrusion helical sleeves, third conveying helical sleeves and third extrusion helical sleeves are sleeved on the screws in sequence along the conveying direction; the screwing directions of the first, second and third conveying helical sleeves are opposite to the screwing directions of the first, second and third extrusion helical sleeves; the screw pitches of the first conveying helical sleeves decrease along the conveying direction; chemical feeding holes corresponding to the third conveying helical sleeves are arranged on the upper part of the machine barrel; and waste liquor holes are arranged on the lower part of the machine barrel. The impregnator can complete impregnation and high-concentration mixed pulping operations while carrying out high-concentration extrusion crushing on fiber materials, and can simplify the pulping production flow, reduce the equipment investment, reduce the consumption of water, electricity, steam and chemicals and improve the impregnation effect and reaction efficiency.
Description
Technical field
The present invention relates to a kind of twin-screw impregnator.
Background technology
Chemical-mechanical pulping adopts gentle chemical treatment and mechanical jordaning, is a kind of high yield free pulping method.Than chemical pulping process, can improve resource utilization, reduce energy consumption and water consumption, environmental contamination reduction; More traditional mechanical feedback such as Stone Ground Wood (GW), PGW (PGW) and thermomechanical pulp (TMP) etc. can improve physical properties of pulp greatly.In the vacancy of having filled up aspect pulp quality and the cost between chemical pulp and the mechanical pulp, have simultaneously preferably opacity, bulk and printability.Be widely used in cardboard, high-grade printing and writing paper, toilet paper, face tissue, release liners, no carbon paper and other a lot of paper kinds.
Pulping technique by chemical-mechanical method requires chemicals by the full and uniform absorption of plant fiber material, to improve chemical reaction efficiency, therefore, make the original structure organization of tablet regular, short texture destroyed, become the wood wool shape by conquassation distortion, increase the tablet surface area, simultaneously with the hydrotrope in the tablet and free water removal, improve the tablet mass dryness fraction, fully absorb liquid, high efficiency is finished the chemical impregnation process.
But because the difference of plant material preliminary treatment impregnating equipment and process makes again it different aspect energy consumption, chemicals cost and maneuverability.
At present, impregnating equipment mainly contains two kinds:
The first, the dipping method that single-screw Extruding ﹠ Tearing Machine (MSD) and inclined screw macerator form.
Because the single-screw Extruding ﹠ Tearing Machine carry to rely on the friction towing to carry mechanism, the excessive very easily pinch of extruding force shredder stops up, and this situation occurs and deals with very difficultly, can have a strong impact on normally carrying out of production.Macerator is often brought liquid into reaction warehouse, reduced reaction warehouse slurry concentration, disc mill refining concentration and affect the defibrination quality.Facts have proved, if concentration is excessively low, fiber is many with contacting of mill, and fiber easily is cut off, and causes pulp strength to reduce.
The second, two helical axis of double helix roll-type fiberizer are intermeshing, realized pressure positive displacement mass transport, overcome the single-screw Extruding ﹠ Tearing Machine defective that is easy to stop up in service, but double helix refiner chemical liquid and tablet are added in (or from the adding of housing filling opening) machine by charging aperture simultaneously, after finishing the preliminary dipping of liquid, fully the chemicals of reaction is not discharged from from leakage fluid dram with waste liquid, can cause following problem:
1. the unreasonable dipping inefficiency that causes of project organization.Chemicals and material produce chemical reaction needs certain environment and time, material time of staying in machine shorter (being generally less than 2 minutes), react very insufficient, and chemicals is discharged by early extruding, has reduced subsequent reactions efficient, has increased the medicine consumption;
2. wastewater treatment difficulty and processing cost have been increased.Tablet is not in the situation that added simultaneously with liquid by abundant conquassation, in the situation that be not fully absorbed, part unreacted chemical medicine is discharged with waste water, has increased the Wastewater Pollutant amount.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, providing a kind of can flood and reaction efficiency by Effective Raise, reduces chemical cost, realizes the twin-screw impregnator of chemical-mechanical pulping cleaner production, is specifically realized by following technical scheme.
A kind of twin-screw impregnator, described twin-screw impregnator comprises frame and is arranged on motor, speed-changing gear box, movable crown gear coupling, machine barrel and two screw rods on the frame, described motor is connected with two screw drive by speed-changing gear box and movable crown gear coupling, described two screw rods are parallel to each other and be arranged on rotationally in the described machine barrel, described machine barrel one end is provided with charging aperture, and the other end is provided with discharging opening; Described screw rod is arranged with the first conveyor screw cover, the first extrusion spiral cover, the second conveyor screw cover, the second extrusion spiral cover, the 3rd conveyor screw cover and the 3rd extrusion spiral cover successively along throughput direction, the hand of spiral of described first, second, third conveyor screw cover is opposite with the hand of spiral of described first, second, third extrusion spiral cover, and the pitch of described the first conveyor screw cover reduces gradually along throughput direction; Described machine barrel top is provided with the medicine feeding hole corresponding with the 3rd conveyor screw cover, and described machine barrel bottom is provided with the waste liquid hole.
Described twin-screw impregnator, it further designs and is, has slot on the spiral shell rib of described first, second, third extrusion spiral cover.
Described twin-screw impregnator, it further designs and is, described movable crown gear coupling comprises left half a coupler, right half a coupler, barreled tooth flank axle, intermediate housing and positioning sleeve, described left and right half a coupler is socketed in respectively the two ends of barreled tooth flank axle, be equipped with internal tooth on the half a coupler of the described left and right sides, described barreled tooth flank axle two ends are equipped with the external tooth that meshes respectively with described internal tooth, described positioning sleeve is located at described screw rod outside with fixed cover and its side is connected with left half a coupler contact, and described right half a coupler is connected with the output shaft of described speed-changing gear box.
Described twin-screw impregnator, it further designs and is, and described positioning sleeve comprises the semicircle column casing that two symmetries are fixedly connected with.
Described twin-screw impregnator, it further designs and is, described twin-screw impregnator also comprises rotary drum continuous metering feed bin, this rotary drum continuous metering feed bin comprises frame, warehouse, rotary drum and conveyer belt, and described warehouse is fixedly installed on the frame, and this warehouse upper end is provided with into Hatch Opening, its lower end is provided with CD outlet, described conveyer belt is arranged on the CD outlet below, and described rotary drum is arranged on the conveyer belt top rotationally, and the output of described conveyer belt is corresponding with described charging aperture.
Described twin-screw impregnator, it further designs and is, and described machine barrel comprises symmetrical first machine barrel that connects and second machine barrel, and described second machine barrel is fixedly installed on the frame, and described first machine barrel is connected with frame by a machine barrel headstock gear.
Described twin-screw impregnator, it further designs and is, described machine barrel headstock gear comprises starting bar and the liquid presses piston pole that is arranged on the frame, middle part and the frame of described starting bar are hinged, this starting bar one end is fixedly connected with the outer wall of first machine barrel, and the output of the other end and liquid presses piston pole is hinged.
Described twin-screw impregnator, it further designs and is, and described starting bar lateral section is del, and minimum point and the frame of this starting bar are hinged.
The present invention has adopted the machine barrel headstock gear, be convenient to load onto replaceable module combinations lining tile and press strip at the machine barrel inner chamber, can be according to the requirement of slurrying impregnation technology, the lining tile module of employing different structure (sealing, installation filter and liquid inject) realizes that conveying, extruding concentrate and the dipping mixed function; After chemical liquid added the implantation site and is located at material and is extruded conquassation, machine barrel adopted closure designs, does not have liquid to discharge, and the dipping material through high dense abundant mixing after in the discharge machine, improved chemical reaction efficiency, reduced the medicine consumption; Two be parallel to each other, engagement and homodromal cylindrical module assembled screw rod, can require the functional section different from the machine barrel mix proportion according to pulping process, realize forcing just to carry, push concentrated and the dipping mixed function, improve dipping effect and reaction efficiency, avoid the obstruction defective, improved stable equipment operation; The stationarity that movable two screw rods of crown gear coupling connection and gearbox output shaft can be realized turning round reduces additional moment, improves equipment dependability and life-span; The present invention has adopted rotary drum continuous metering feed bin, thereby has realized the continuous metering feeding of material, makes material and chemical liquid dipping evenly.
Description of drawings
Fig. 1 is twin-screw impregnator structural representation provided by the invention.
Fig. 2 is the top view of twin-screw impregnator shown in Fig. 1.
Fig. 3 is operating principle schematic diagram of the present invention.
Fig. 4 is the screw-rod structure schematic diagram.
Fig. 5 is extrusion spiral cover slot end face structure schematic diagram among Fig. 4.
Fig. 6 is machine barrel headstock gear structural representation.
Fig. 7 is rotary drum continuous metering feed bin structure schematic diagram.
Fig. 8 is movable crown gear coupling structural representation.
The specific embodiment
Below in conjunction with Figure of description and specific embodiment the present invention is further specified.
This twin-screw impregnator comprises frame and is arranged on motor 2, speed-changing gear box 3, movable crown gear coupling 4, machine barrel 5 and two screw rods 6 on the frame 1, motor 2 is in transmission connection by speed-changing gear box 3 and movable crown gear coupling 4 and two screw rods 6, two screw rods 6 are parallel to each other and be arranged on rotationally in the machine barrel 5, machine barrel 5 one ends are provided with charging aperture 51, and the other end is provided with discharging opening 52; Direction from charging aperture 51 to discharging opening 52 is throughput direction, screw rod 6 is arranged with the first conveyor screw cover the 61, first extrusion spiral cover the 62, second conveyor screw cover the 63, second extrusion spiral cover the 64, the 3rd conveyor screw cover the 65 and the 3rd extrusion spiral cover 66 successively along throughput direction, the hand of spiral of first, second, third conveyor screw cover is opposite with the hand of spiral of first, second, third extrusion spiral cover, and the pitch of the first conveyor screw cover reduces gradually along throughput direction; Be provided with homogenizing ring 67 between each conveyor screw cover and the extrusion spiral cover, machine barrel 5 tops are provided with the medicine feeding hole 53 corresponding with the 3rd conveyor screw cover, and machine barrel 5 bottoms are provided with the waste liquid hole 54 corresponding with the output of first, second conveyor screw cover.54 places, waste liquid hole are provided with filters castor 57.Have slot 368 on the spiral shell rib of first, second, third extrusion spiral cover.
Movable crown gear coupling 4 comprises left half a coupler 41, right half a coupler 42, barreled tooth flank axle 43, intermediate housing 44 and positioning sleeve 45, left and right half a coupler is socketed in respectively the two ends of barreled tooth flank axle, be equipped with internal tooth 430 on the half a coupler of the left and right sides, barreled tooth flank axle two ends are equipped with the external tooth 340 that meshes respectively with internal tooth, positioning sleeve is located at the screw rod outside by the positioning stud fixed cover and its side is connected with left half a coupler contact, and right half a coupler is connected with the output shaft of speed-changing gear box.Positioning sleeve comprises the semicircle column casing that two symmetries are fixedly connected with.Intermediate housing 44 is set in barreled tooth flank axle 43 outsides, and the barreled tooth flank axle is shielded.During demolition and maintenance, intermediate housing 44 is at first removed, mobile left half a coupler gets final product then.
The twin-screw impregnator also comprises rotary drum continuous metering feed bin 7, this rotary drum continuous metering feed bin comprises warehouse 71, rotary drum 72 and conveyer belt 73, warehouse 71 is fixedly installed on the frame, these warehouse 71 upper ends are provided with into Hatch Opening 711, its lower end is provided with CD outlet 712, and conveyer belt 73 is arranged on CD outlet 712 belows, and rotary drum 72 is arranged on the conveyer belt top rotationally, the output of conveyer belt is corresponding with charging aperture, and the linear transmission of the material in the warehouse is advanced in the machine barrel.
Machine barrel 5 comprises symmetrical first machine barrel 55 and second machine barrel 56 that connects, and second machine barrel is fixedly installed on the frame, and first machine barrel 51 is connected with frame by machine barrel headstock gear 8.Machine barrel headstock gear 8 comprises starting bar 81 and the liquid presses piston pole 82 that is arranged on the frame, and middle part and the frame of starting bar 81 are hinged, and these starting bar 81 1 ends are fixedly connected with the outer wall of first machine barrel, and the output of the other end and liquid presses piston pole is hinged.The starting bar lateral section is del, and minimum point and the frame of this starting bar are hinged.
During operation, material at the uniform velocity enters machine barrel from rotary drum continuous metering feed bin, and screw rod rotates under the driving of motor, because the pitch of the first conveyor screw cover reduces gradually, so that the extruding force that material bears increases gradually, material is compressed, and is full of screw channel gradually; Entering reverse crush zone, is the first homogenizing ring place before the extrusion spiral cover, and it is maximum that extruding force reaches, and material is compressed strongly, and material contained humidity and the hydrotrope are extruded and discharge by machine barrel filter castor and filtrate drain drilling; Under the effect of forward extrusion power, material is forced through the slot on the first extrusion spiral cover spiral shell rib, and the material physical dimension that is squeezed, crumples diminishes and conquassation; After the second conveyor screw cover and the second extrusion spiral cover push homogenizing again, add hand-hole at the forward discharging end of the second extrusion spiral cover by machine barrel liquid and be metered into chemicals by metering chemical feeding device.After overlapping high dense mixing, the 3rd extrusion spiral discharges again.Obviously, in order to satisfy the job requirements of concrete different material, arrange more or still less organize conveyor screw cover and the extrusion spiral cover all in the technology of the present invention enlightenment scope.
Fibre material in the higher-pressure region, axially be subject to very large extruding force (〉=10MPa) and produce frictional heat, under the dense state of height, the pressure and temperature factor has more been strengthened liquid and has been soaked into and the conquassation effect.
The present invention adopts modularization composite structure, and one-machine-multi-function in the high dense extruding conquassation of fibre material, is finished dipping and high dense pulping process for mixed operation, can simplify the slurrying production procedure, reduces equipment investment; Reduce water, electricity, vapour and chemical cost, improve dipping effect and reaction efficiency.The present invention has adopted the machine barrel headstock gear, be convenient to load onto replaceable module combinations lining tile and press strip at the machine barrel inner chamber, can be according to the requirement of slurrying impregnation technology, the lining tile module of employing different structure (sealing, installation filter and liquid inject) realizes that conveying, extruding concentrate and the dipping mixed function; After chemical liquid added the implantation site and is located at material and is extruded conquassation, machine barrel adopted closure designs, does not have liquid to discharge, and the dipping material through high dense abundant mixing after in the discharge machine, improved chemical reaction efficiency, reduced the medicine consumption; Two be parallel to each other, engagement and homodromal cylindrical module assembled screw rod, can require the functional section different from the machine barrel mix proportion according to pulping process, realize forcing just to carry, push concentrated and the dipping mixed function, improve dipping effect and reaction efficiency, avoid the obstruction defective, improved stable equipment operation; The stationarity that movable two screw rods of crown gear coupling connection and gearbox output shaft can be realized turning round reduces additional moment, improves equipment dependability and life-span; The present invention has adopted rotary drum continuous metering feed bin, thereby has realized the continuous metering feeding of material, makes material and chemical liquid dipping evenly.
Claims (8)
1. twin-screw impregnator, it is characterized in that, described twin-screw impregnator comprises frame and is arranged on motor, speed-changing gear box, movable crown gear coupling, machine barrel and two screw rods on the frame, described motor is connected with two screw drive by speed-changing gear box and movable crown gear coupling, described two screw rods are parallel to each other and be arranged on rotationally in the described machine barrel, described machine barrel one end is provided with charging aperture, and the other end is provided with discharging opening; Described screw rod is arranged with the first conveyor screw cover, the first extrusion spiral cover, the second conveyor screw cover, the second extrusion spiral cover, the 3rd conveyor screw cover and the 3rd extrusion spiral cover successively along throughput direction, the hand of spiral of described first, second, third conveyor screw cover is opposite with the hand of spiral of described first, second, third extrusion spiral cover, and the pitch of described the first conveyor screw cover reduces gradually along throughput direction; Described machine barrel top is provided with the medicine feeding hole corresponding with the 3rd conveyor screw cover, and described machine barrel bottom is provided with the waste liquid hole.
2. twin-screw impregnator according to claim 1 is characterized in that, has slot on the spiral shell rib of described first, second, third extrusion spiral cover.
3. twin-screw impregnator according to claim 1, it is characterized in that, described movable crown gear coupling comprises left half a coupler, right half a coupler, the barreled tooth flank axle, intermediate housing and positioning sleeve, a described left side, right half a coupler is socketed in respectively the two ends of barreled tooth flank axle, be equipped with internal tooth on the half a coupler of the described left and right sides, described barreled tooth flank axle two ends are equipped with the external tooth that meshes respectively with described internal tooth, described positioning sleeve is located at described screw rod outside with fixed cover and its side is connected with left half a coupler contact, and described right half a coupler is connected with the output shaft of described speed-changing gear box.
4. twin-screw impregnator according to claim 3 is characterized in that, described positioning sleeve comprises the semicircle column casing that two symmetries are fixedly connected with.
5. twin-screw impregnator according to claim 1, it is characterized in that, described twin-screw impregnator also comprises rotary drum continuous metering feed bin, this rotary drum continuous metering feed bin comprises frame, warehouse, rotary drum and conveyer belt, and described warehouse is fixedly installed on the frame, and this warehouse upper end is provided with into Hatch Opening, its lower end is provided with CD outlet, described conveyer belt is arranged on the CD outlet below, and described rotary drum is arranged on the conveyer belt top rotationally, and the output of described conveyer belt is corresponding with described charging aperture.
6. twin-screw impregnator according to claim 1 is characterized in that, described machine barrel comprises symmetrical first machine barrel that connects and second machine barrel, and described second machine barrel is fixedly installed on the frame, and described first machine barrel is connected with frame by a machine barrel headstock gear.
7. twin-screw impregnator according to claim 7, it is characterized in that, described machine barrel headstock gear comprises starting bar and the liquid presses piston pole that is arranged on the frame, middle part and the frame of described starting bar are hinged, this starting bar one end is fixedly connected with the outer wall of first machine barrel, and the output of the other end and liquid presses piston pole is hinged.
8. twin-screw impregnator according to claim 7 is characterized in that, described starting bar lateral section is del, and minimum point and the frame of this starting bar are hinged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103321128A CN102864669A (en) | 2012-09-11 | 2012-09-11 | Double-screw impregnator |
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| CN2012103321128A CN102864669A (en) | 2012-09-11 | 2012-09-11 | Double-screw impregnator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723576A (en) * | 2015-03-10 | 2015-06-24 | 北京化工大学 | Forming device and forming method of continuous fiber reinforced thermoplastic resin preimpregnation sheet material |
| CN105463899A (en) * | 2015-12-16 | 2016-04-06 | 云南昆船环保技术有限公司 | Defibering machine for paper-making reconstituted tobacco |
| CN105729678A (en) * | 2014-07-21 | 2016-07-06 | 江苏金沃机械有限公司 | Recycling and reusing washing and purifying system for film type waste plastics |
| CN105728170A (en) * | 2014-07-21 | 2016-07-06 | 江苏金沃机械有限公司 | Multi-drum type recycling and reusing washing and purifying system for film type waste plastics |
| CN105856455A (en) * | 2014-07-21 | 2016-08-17 | 江苏金沃机械有限公司 | Flow velocity controlled multi-rotor drum film waste plastic recycling and reusing system |
| CN107541977A (en) * | 2017-09-30 | 2018-01-05 | 河北天正筛选制浆设备有限公司 | A kind of multiscrew high concentration displacement washing defibrination discongests device and slurry washing system |
| CN110755914A (en) * | 2019-12-06 | 2020-02-07 | 卢亚丹 | Novel slurry refining and concentrating system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105729678A (en) * | 2014-07-21 | 2016-07-06 | 江苏金沃机械有限公司 | Recycling and reusing washing and purifying system for film type waste plastics |
| CN105728170A (en) * | 2014-07-21 | 2016-07-06 | 江苏金沃机械有限公司 | Multi-drum type recycling and reusing washing and purifying system for film type waste plastics |
| CN105856455A (en) * | 2014-07-21 | 2016-08-17 | 江苏金沃机械有限公司 | Flow velocity controlled multi-rotor drum film waste plastic recycling and reusing system |
| CN105728170B (en) * | 2014-07-21 | 2018-05-01 | 江苏金沃机械有限公司 | A kind of more rotary drum film class technics of reclaim of plastic waste recycle washing, purifying system |
| CN105856455B (en) * | 2014-07-21 | 2018-05-01 | 江苏金沃机械有限公司 | The more rotary drum film class technics of reclaim of plastic waste reutilization systems of flow control |
| CN104723576A (en) * | 2015-03-10 | 2015-06-24 | 北京化工大学 | Forming device and forming method of continuous fiber reinforced thermoplastic resin preimpregnation sheet material |
| CN105463899A (en) * | 2015-12-16 | 2016-04-06 | 云南昆船环保技术有限公司 | Defibering machine for paper-making reconstituted tobacco |
| CN107541977A (en) * | 2017-09-30 | 2018-01-05 | 河北天正筛选制浆设备有限公司 | A kind of multiscrew high concentration displacement washing defibrination discongests device and slurry washing system |
| CN110755914A (en) * | 2019-12-06 | 2020-02-07 | 卢亚丹 | Novel slurry refining and concentrating system |
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Application publication date: 20130109 |