CN102251426A - Head pressure flow adjusting device for screw extruder - Google Patents
Head pressure flow adjusting device for screw extruder Download PDFInfo
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- CN102251426A CN102251426A CN 201110181502 CN201110181502A CN102251426A CN 102251426 A CN102251426 A CN 102251426A CN 201110181502 CN201110181502 CN 201110181502 CN 201110181502 A CN201110181502 A CN 201110181502A CN 102251426 A CN102251426 A CN 102251426A
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- terminal pad
- adjustable ring
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- screw extruder
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Abstract
The invention discloses a head pressure flow adjusting device for a screw extruder, and relates to the field of screw extruders. The head pressure flow adjusting device comprises a left connecting plate, an adjusting ring and a right connecting plate; the left connecting plate and the right connecting plate are connected with a left flange and a right flange of the screw extruder by using bolts passing through a hollow cylindrical pipe, and the hollow cylindrical pipe is arranged between the left connecting plate and the right connecting plate; the adjusting ring is in movable fit with the left connecting plate and the right connecting plate and arranged between the left connecting plate and the right connecting plate; and a left jacking bolt and a right jacking bolt are arranged on the left connecting plate and the right connecting plate and jacked on two sides of the shaft shoulder of the adjusting ring, and the axial position of the adjusting ring is changed by changing the screw-in length of the left jacking bolt and the right jacking bolt. The left connecting plate, the right connecting plate and the adjusting ring can form a bearing sealed cavity, and the axial position of the adjusting ring is changed by changing the pressure of the two sides of the shaft shoulder of the adjusting ring. By a method of changing the material flow area, pressure and flow of the screw head are adjusted, power waste is avoided, and power required for forming material seal is reduced.
Description
Technical field
The present invention relates to a kind of screw extruder head pressure flow regulator, particularly a kind ofly need set up high pressure, and regulate the device of flow at the screw extruder head.
Background technology
Screw extruder need form high binder envelope as the quick-fried feed arrangement of the continuous vapour of lignocellulose at head when its key technology is charging, regurgitates to prevent the high steam in boiling vessel, and normally charging.
At present, screw extruder expects that in fill process envelope forms the main following several method that adopts: 1. screw rod adopts varying pitch or becomes spiral shell footpath technology, changes compression ratio and forms the material envelope; 2. adopt pin or other forms of valve, at first valve cuts out in charging, material to be formed is honored as a queen, and valve is opened again.
The principle of the cellulose bulking machine formation material envelope of introducing in the Chinese patent " cellulose continuous puffing machine " (patent No. ZL200620166968.2) is that the Reducing screw of feeder cooperates charging with needle-valve, needle-valve moves to the feeder exit during charging, set up high pressure by the Reducing screw pressing materials simultaneously, when pressure reaches certain value, form the material envelope, again needle-valve is opened.
Chinese patent " screw rod injection type plant fibre steam blasting device and method " (application number 200910036569.2, when the principle that the screw rod injection type plant fibre steam blasting device of introducing publication number CN101463570A) is set up head pressure is charging the quick opening valve at head place is closed, material is regulated pressure by the axial location of adjusting screw rod simultaneously by the variable-pitch propeller build-up pressure.
There is following problem in above-mentioned two kinds of devices that form the material envelope:
1. power dissipation is big.Since by the method increasing compression ratio of displacement and Reducing screw, will be when forming the material envelope simultaneously with valve closing.Therefore form the high-power pressing materials of material envelope process need, then do not need very big power during normal charging, so cause power dissipation.
2. can't the stabilization head pressure flow.Under the certain situation of screw speed because the formation of material envelope need guarantee certain inlet amount, cause expecting that when inlet amount changes the pressure that seals formation changes, can't guarantee to expect the envelope place pressure and stability of flow.
Yet there are no the relevant power consumption that can reduce so far, again can stabilization head pressure and the screw extruder head pressure flow regulator of flow.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the present invention is to provide that a kind of power is little, head pressure and the adjustable screw extruder of flow head pressure flow regulator.
The present invention is achieved through the following technical solutions:
Screw extruder of the present invention is that adjustable ring is installed in the head of screw extruder by left terminal pad, right terminal pad with the design feature of head pressure flow regulator, and left terminal pad, right terminal pad and adjustable ring pass through seal with O ring.Screw extruder is the axial location (the screw extruder aperture of head pressure Flow-rate adjustment ring) by changing adjustable ring when charging, changes the pressure that the head place forms the material envelope, regulates flow simultaneously.It is to set up high binder envelope by the circulation area that changes material that this device forms material envelope principle, so there is not power dissipation.When one timing of screw extruder rotating speed, when inlet amount reduced, material envelope place pressure reduced, and can guarantee to expect that there is enough pressure at the envelope place by reducing the aperture of adjustable ring; When inlet amount increased, material envelope place pressure raise, and can reduce the pressure at material envelope place by increasing the aperture of adjustable ring, thereby avoid because the place's pressure increase of material envelope causes the power of screw extruder to increase.
Screw extruder head pressure flow regulator is characterized in that, comprises left terminal pad 3, adjustable ring 4, right terminal pad 6; Left side terminal pad 3, right terminal pad 6 are located between screw extruder left side flange 2, the right flange 7; The bolt B 1 that left side terminal pad 3, right terminal pad 6 usefulness are passed hollow cylindrical tube 5 is connected with screw extruder left side flange 2, right flange 7 respectively, and hollow cylindrical tube 5 is installed between left terminal pad 3, the right terminal pad 6; Adjustable ring 4 and left terminal pad 3, right terminal pad 6 are installed between left terminal pad 3, the right terminal pad 6 movingly;
Described adjustable ring 4 is that cylinder axis is processed an external imperial palace fine taper through hole to the two ends symmetry, and cone angle is 50～70 °, then with the symmetry processing vertically of cylinder cylindrical, processes at axial place, centre position that a shaft shoulder forms; Its shaft shoulder end face is processed with the U-shaped groove;
Described left terminal pad 3, right terminal pad 6 are circular, are processed with on left terminal pad 3, the right terminal pad 6 and the same through hole in adjustable ring 4U shape groove position; Left side terminal pad 3, right connection 6 are processed with tapped through hole in addition; Left side terminal pad 3, right terminal pad 6 inner surfaces are processed with the groove of placing O-ring seals 10;
Hollow cylindrical tube 5 is installed between left terminal pad 3 and the right terminal pad 6, and passes the U-shaped groove on adjustable ring 4 shaft shoulders,
Be separately installed with on the tapped through hole of left terminal pad 3, right terminal pad 6 that bolt 11 is opened on left side top, You Ding opens bolt 9, withstand on the both sides of adjustable ring 4 shaft shoulders respectively, open the axial location that screw-in length that bolt 11, You Ding open bolt 9 changes adjustable ring 4 by changing left side top.
The screw extruder another kind of structure of head pressure flow regulator is characterized in that:
Comprise left terminal pad 3, adjustable ring 4, right terminal pad 6; Left side terminal pad 3, right terminal pad 6 usefulness bolt D16 interconnect; Left side terminal pad 3, right terminal pad 6 usefulness bolt C12 are connected with screw extruder left side flange 2, right flange 7 respectively; Adjustable ring 4 and left terminal pad 3, right terminal pad 6 are installed in and form pressure bearing and seal chamber 17 between left terminal pad 3, the right terminal pad 6 movingly, and this pressure bearing and seal chamber 17 is divided into left and right sides two parts; On left terminal pad 3 and right terminal pad 6, be processed with left liquid hand-hole 13, right liquid hand-hole 15 respectively, by changing the axial location that the two-part fluid pressure in 17 left and right sides, pressure bearing and seal chamber, adjustable ring 4 shaft shoulder both sides changes adjustable ring 4;
Described adjustable ring 4 is that cylinder axis is processed an external imperial palace fine taper through hole to the two ends symmetry, and cone angle is 50～70 °, then with the symmetry processing vertically of cylinder cylindrical, processes at axial place, centre position that a shaft shoulder forms;
Periphery is processed with the groove of placing O-ring seals 14 on described adjustable ring 4 shaft shoulders; Scale 18 is housed on the shaft shoulder; Be processed with staff guage hole on the described left terminal pad 3; Be processed with in the staff guage hole and place the O-ring seals groove.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention can reduce screw extruder and form the required power of material envelope, can be by changing the adjustable ring aperture, and under the prerequisite that guarantees the material seal pressure, steady pressure and flow can not cause power dissipation.
2, the present invention can regulate head pressure, can form the pressure change adjustable ring aperture of material envelope as required.
3, the present invention is simple in structure, and is easy for installation.
Description of drawings
Below in conjunction with the present invention is further detailed explanation with the specific embodiment.
Fig. 1 is the side view of common screw cross-head.
2 is left flange; 7 is right flange; 8 is screw rod; 19 is bolt A.
Fig. 2 is the left view of common screw cross-head.
Fig. 3 is the side view of a kind of structure of the present invention.
1 is bolt B; 3 is left terminal pad; 4 is adjustable ring; 5 is hollow cylindrical tube; 6 is right terminal pad; 9 for opening bolt in right top; 10 is O-ring seals; 11 for opening bolt in top, a left side.
Fig. 4 is the A-A cross-sectional view of a kind of structure of the present invention.
Fig. 5 is the side view of the another kind of structure of the present invention.
12 is bolt C; 13 is left liquid hand-hole; 14 is O-ring seals; 15 is right liquid hand-hole; 16 is bolt D; 17 is the pressure bearing and seal chamber; 18 is scale.
Fig. 6 is the B-B cross-sectional view of the another kind of structure of the present invention.
The present invention is further described below in conjunction with accompanying drawing and example.
The specific embodiment
See figures.1.and.2, common screw extruder left side flange 2, right flange 7 usefulness bolt A19 connect no frame head apparatus.
With reference to Fig. 3 and Fig. 4, the bolt B 1 that screw extruder passes hollow cylindrical tube 5 with the left terminal pad 3 of head pressure flow regulator, right terminal pad 6 usefulness is connected with screw extruder left side flange 2, right flange 7 respectively, hollow cylindrical tube 5 is installed between left terminal pad 3, the right terminal pad 6, to guarantee the axially reciprocating space of adjustable ring 4; Adjustable ring 4 and left terminal pad 3, right terminal pad 6 be (promptly be installed between left terminal pad 3 and the right terminal pad 6 and can move axially) movingly, is installed between left terminal pad 3, the right terminal pad 6; Be separately installed with on left terminal pad 3, right terminal pad 6 that bolt 11 is opened on left side top, You Ding opens bolt 9, withstands on the both sides of adjustable ring 4 respectively, open the axial location that screw-in length that bolt 11, You Ding open bolt 9 changes adjustable ring 4 by changing top, a left side.
With reference to Fig. 5 and Fig. 6, screw extruder interconnects with head pressure flow regulator left side terminal pad 3, right terminal pad 6 usefulness bolt D16, adjustable ring 4 and left terminal pad 3, right terminal pad 6 be (promptly be installed between left terminal pad 3 and the right terminal pad 6 and can move axially) movingly, is installed in to form pressure bearing and seal chamber 17 between left terminal pad 3, the right terminal pad 6; Left side terminal pad 3, right terminal pad 6 usefulness bolt C12 are connected with screw extruder left side flange 2, right flange 7 respectively; On left terminal pad 3, right terminal pad 6, be processed with left liquid hand-hole 13 and right liquid hand-hole 15 respectively, by injecting liquid from left liquid hand-hole 13 and right liquid hand-hole 15, change the two-part fluid pressure in 17 left and right sides, pressure bearing and seal chamber, adjustable ring 4 shaft shoulder both sides, thereby change the axial location of adjustable ring 4; Be installed in the axial displacement that scale 18 on adjustable ring 4 shaft shoulders can show adjustable ring 4.
The present invention is simple in structure easy for installation, utilizes adjustable ring 4 to cooperate with screw rod 8 heads, and when adjustable ring 4 axially moved near screw rod 8, the material stream passed area reduced, and flow reduces, and the material seal pressure increases; When adjustable ring 4 axially moved away from screw rod 8, the material stream passed area increased, and flow increases, and the material seal pressure reduces, thereby reached the effect of adjusting screw(rod) cross-head pressure and flow.
Claims (2)
1. screw extruder head pressure flow regulator is characterized in that, comprises left terminal pad (3), adjustable ring (4), right terminal pad (6); Left side terminal pad (3), right terminal pad (6) are located between screw extruder left side flange (2), the right flange (7); Left side terminal pad (3), right terminal pad (6) are connected with screw extruder left side flange (2), right flange (7) respectively with the bolt B (1) of passing hollow cylindrical tube (5), and hollow cylindrical tube (5) is installed between left terminal pad (3), the right terminal pad (6); Adjustable ring (4) and left terminal pad (3), right terminal pad (6) are installed between left terminal pad (3), the right terminal pad (6) movingly;
Described adjustable ring (4) is that cylinder axis is processed an external imperial palace fine taper through hole to the two ends symmetry, and cone angle is 50～70 °, then with the symmetry processing vertically of cylinder cylindrical, processes at axial place, centre position that a shaft shoulder forms; Its shaft shoulder end face is processed with the U-shaped groove;
Described left terminal pad (3), right terminal pad (6) are circular, are processed with on left terminal pad (3), the right terminal pad (6) and the same through hole in adjustable ring (4) U-shaped groove position; Left side terminal pad (3), right terminal pad (6) are processed with tapped through hole in addition; Left side terminal pad (3), right terminal pad (6) inner surface are processed with the groove of placing O-ring seals (10);
Hollow cylindrical tube (5) is installed between left terminal pad (3) and the right terminal pad (6), and passes the U-shaped groove on adjustable ring (4) shaft shoulder,
Be separately installed with on the tapped through hole of left terminal pad (3), right terminal pad (6) that bolt (11) is opened on left side top, bolt (9) is opened on right top, withstand on the both sides of adjustable ring (4) shaft shoulder respectively, open bolt (11), the right axial location that pushes up the screw-in length change adjustable ring (4) that opens bolt (9) by changing top, a left side.
2. screw extruder head pressure flow regulator is characterized in that:
Comprise left terminal pad (3), adjustable ring (4), right terminal pad (6); Left side terminal pad (3), right terminal pad (6) interconnect with bolt D (16); Left side terminal pad (3), right terminal pad (6) are connected with screw extruder left side flange (2), right flange (7) respectively with bolt C (12); Adjustable ring (4) and left terminal pad (3), right terminal pad (6) are installed in and form pressure bearing and seal chamber (17) between left terminal pad (3), the right terminal pad (6) movingly, and this pressure bearing and seal chamber (17) is divided into left and right sides two parts; On left terminal pad (3) and right terminal pad (6), be processed with left liquid hand-hole (13), right liquid hand-hole (15) respectively, by changing the axial location that the two-part fluid pressure in the left and right sides, pressure bearing and seal chambeies, adjustable ring (4) shaft shoulder both sides (17) changes adjustable ring (4);
Described adjustable ring (4) is that cylinder axis is processed an external imperial palace fine taper through hole to the two ends symmetry, and cone angle is 50～70 °, then with the symmetry processing vertically of cylinder cylindrical, processes at axial place, centre position that a shaft shoulder forms;
Periphery is processed with the groove of placing O-ring seals (14) on described adjustable ring (4) shaft shoulder; Scale (18) is housed on the shaft shoulder; Be processed with staff guage hole on the described left terminal pad (3); Be processed with in the staff guage hole and place the O-ring seals groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110181502 CN102251426B (en) | 2011-06-30 | 2011-06-30 | Head pressure flow adjusting device for screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110181502 CN102251426B (en) | 2011-06-30 | 2011-06-30 | Head pressure flow adjusting device for screw extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102251426A true CN102251426A (en) | 2011-11-23 |
| CN102251426B CN102251426B (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110181502 Expired - Fee Related CN102251426B (en) | 2011-06-30 | 2011-06-30 | Head pressure flow adjusting device for screw extruder |
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| Country | Link |
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| CN (1) | CN102251426B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972557A (en) * | 2012-11-25 | 2013-03-20 | 北京化工大学 | Method for producing instant tea powder by using steam explosion technology to treat tea raw materials |
| CN103015245A (en) * | 2012-12-17 | 2013-04-03 | 吴玲鲜 | Plant fiber continuous evaporation piston-type screw feeder |
| CN108475078A (en) * | 2016-01-21 | 2018-08-31 | Itt制造企业有限责任公司 | Natural pressure draught control mechanism with adjustable seating |
| CN109499809A (en) * | 2018-12-18 | 2019-03-22 | 湖南固虹机械制造有限公司 | A kind of resin tile color roller coating equipment |
| CN113843995A (en) * | 2021-09-15 | 2021-12-28 | 王炜炜 | Pressure-maintaining adjusting type injection molding process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5996770A (en) * | 1996-09-19 | 1999-12-07 | Sunds Defibrator Industries Ab | Plug screw feeder |
| WO2004079086A1 (en) * | 2003-03-05 | 2004-09-16 | Kvaerner Pulping Ab | An arrangement for adjusting rotor position in a roting sluice |
| CN2894298Y (en) * | 2006-02-17 | 2007-05-02 | 肖国云 | Discharge port pressure distributing-regulating mechanism for puffing machine |
| CN201336922Y (en) * | 2009-01-13 | 2009-11-04 | 廊坊燕北畜牧机械集团有限公司 | Spiral extruder discharge shaping device |
| CN101987695A (en) * | 2009-08-04 | 2011-03-23 | 江苏华机环保设备有限责任公司 | Feeding device of screw feeder |
-
2011
- 2011-06-30 CN CN 201110181502 patent/CN102251426B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5996770A (en) * | 1996-09-19 | 1999-12-07 | Sunds Defibrator Industries Ab | Plug screw feeder |
| WO2004079086A1 (en) * | 2003-03-05 | 2004-09-16 | Kvaerner Pulping Ab | An arrangement for adjusting rotor position in a roting sluice |
| CN2894298Y (en) * | 2006-02-17 | 2007-05-02 | 肖国云 | Discharge port pressure distributing-regulating mechanism for puffing machine |
| CN201336922Y (en) * | 2009-01-13 | 2009-11-04 | 廊坊燕北畜牧机械集团有限公司 | Spiral extruder discharge shaping device |
| CN101987695A (en) * | 2009-08-04 | 2011-03-23 | 江苏华机环保设备有限责任公司 | Feeding device of screw feeder |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972557A (en) * | 2012-11-25 | 2013-03-20 | 北京化工大学 | Method for producing instant tea powder by using steam explosion technology to treat tea raw materials |
| CN103015245A (en) * | 2012-12-17 | 2013-04-03 | 吴玲鲜 | Plant fiber continuous evaporation piston-type screw feeder |
| CN103015245B (en) * | 2012-12-17 | 2015-04-22 | 吴玲鲜 | Plant fiber continuous evaporation piston-type screw feeder |
| CN108475078A (en) * | 2016-01-21 | 2018-08-31 | Itt制造企业有限责任公司 | Natural pressure draught control mechanism with adjustable seating |
| CN113006976A (en) * | 2016-01-21 | 2021-06-22 | Itt制造企业有限责任公司 | Natural gas pressure regulator with adjustable valve seat |
| CN109499809A (en) * | 2018-12-18 | 2019-03-22 | 湖南固虹机械制造有限公司 | A kind of resin tile color roller coating equipment |
| CN109499809B (en) * | 2018-12-18 | 2023-12-08 | 湖南固虹机械制造有限公司 | Resin tile color roll coating equipment |
| CN113843995A (en) * | 2021-09-15 | 2021-12-28 | 王炜炜 | Pressure-maintaining adjusting type injection molding process |
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| Publication number | Publication date |
|---|---|
| CN102251426B (en) | 2012-12-12 |
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Granted publication date: 20121212 Termination date: 20150630 |
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