CN201033269Y - Transposing pressure filter - Google Patents
Transposing pressure filter Download PDFInfo
- Publication number
- CN201033269Y CN201033269Y CNU2006201328300U CN200620132830U CN201033269Y CN 201033269 Y CN201033269 Y CN 201033269Y CN U2006201328300 U CNU2006201328300 U CN U2006201328300U CN 200620132830 U CN200620132830 U CN 200620132830U CN 201033269 Y CN201033269 Y CN 201033269Y
- Authority
- CN
- China
- Prior art keywords
- filter screen
- roller
- displacement
- press
- drip tray
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 32
- 238000005406 washing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 12
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 5
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 230000005484 gravity Effects 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 5
- 238000005056 compaction Methods 0.000 abstract 1
- 238000004537 pulping Methods 0.000 abstract 1
- 229920001131 Pulp (paper) Polymers 0.000 description 31
- 230000018044 dehydration Effects 0.000 description 11
- 238000006297 dehydration reaction Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 11
- 238000002386 leaching Methods 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 7
- 230000000391 smoking effect Effects 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The utility model relates to an extraction equipment for pulping black liquor in papermaking. The extraction efficiency of black liquor in prior art is 70%. In the pre-dewatering section, a displacement pressing device unit comprises a fixation mill roller 12, a pressure mill roller 13, a fountain roller 18, a main mill roller rocker arm 14, an auxiliary mill roller rocker arm 15, an elasticity compaction device for mill rollers 16 and other members, the members are connected in series. The utility model is characterized in that squeeze dewatering is integrated with gravity dewatering, thus the dewatering capacity is improved; as a water outlet of a water tray 19 is of stepped shape, enabling reverse countercurrent pulp washing and reutilization of pulp washing water. The utility model has the advantages that the extraction efficiency of black liquor is improved to 90%, the water resource can be saved, the papermaking cost is reduced and the environment can be protected.
Description
One, technical field
The utility model relates to light industry papermaking equipment technical field, is the squeezing extraction equipment of black liquor by it.
Two, background technology
The raw material that paper industry uses mainly is wheat straw, timber, mao bamboon, reed, cotton stalk, bagasse and waste paper, and these raw materials are rejected impurity by after boiling, washing technical process processing such as oar, screening and mill oar, and the fiber in the profit reduction and reserving material is used for papermaking.As washing the capital equipment that the oar operation is extracted black liquor, the majority of sale and papermaking producer use in the market is two net belt type filter presses.The oar dewatering Principle of washing of such filter press is to adopt gravity dehydration in the pre-water smoking, and press dewatering is adopted in the later stage dehydration.Because such filter press is the gravity dehydration technology pre-water smoking employing, paper pulp does not bear pressure in dehydration, and water separation capability is very poor, and the extraction rate of black liquor in the paper pulp has only 70%, has increased the difficulty of later operation.And in washing the oar process, wash oar water and only use once, therefore produce a large amount of industrialness waste water, increase the weight of the burden of wastewater treatment, the papermaking cost is increased, also can cause environmental pollution.
Three, summary of the invention
The purpose of this utility model is to design and develop a kind of displacement pressing device unit; and on filter press, form displacement pressing device group by a plurality of displacement pressing devices unit; be installed in pre-water smoking and terminal between the water smoking; employing press dewatering technology is improved the problem of existing two net belt type filter presses in pre-whole gravity dehydration technology of using of water smoking; thereby improve the water separation capability of filter press; and by adjusting the layout between each device; make and wash oar water and be repeatedly used; can save great lot of water resources; cut down expenses; reduce the papermaking cost, also can play a positive role environmental protection.
To achieve these goals, the utility model is made up of buncher, decelerator, frame, hopper, upper filter screen home roll, lower filter screen home roll, upper filter screen, lower filter screen, filter screen deviation correcting device, net washing device, filter screen stretcher, terminal pressing device and displacement pressing device unit etc.Upper filter screen is a closed loop shape, is fixed on the top of frame by the upper filter screen home roll, and by the tensioning of filter screen stretcher, its first loop section is installed filter screen deviation correcting device, net washing device, hopper etc.; Lower filter screen also is a closed loop shape, is fixed on the below of frame by the lower filter screen home roll, by the tensioning of filter screen stretcher, at its second loop section filter screen deviation correcting device, net washing device is installed.Fitting in two planes of the following semi-ring of upper filter screen and the last semi-ring of lower filter screen, enters displacement pressing devices at different levels unit successively, enters the terminal pressing device at last.Displacement pressing device unit presses roller by fixing, pressure presses roller, main press rocking arm, secondary squeezing rocking arm, press for extracting juice roller elastic pressuring clamping device, spacing pressing plate, dip roll, drip tray and spray header and forms.The fixing roller that presses is fixed on the frame; Pressure presses roller and is installed on the secondary squeezing rocking arm; Hole and main press rocking arm De Kong Hinge on the secondary squeezing rocking arm connect; One end of main press rocking arm and Ji Jia Hinge connect, and the other end is connected and presses on the roller elastic pressuring clamping device; It is spacing by spacing pressing plate to press the roller elastic pressuring clamping device; Drip tray is installed in the below of fixing press for extracting juice roller and is fixed on the frame; Dip roll is fixedly mounted on the lowest part of drip tray front portion; Spray header is installed in the fixing top of roller upper limb and dip roll lower edge tangent line and the place of close dip roll of pressing.In the utility model the delivery port of each drip tray from after reduce successively forward, make drip tray delivery port of the present utility model couple together into as a whole stairstepping, thereby guarantee the drip tray that oar water can flow into preceding working procedure automatically of washing of later process, the water in the participation preceding working procedure in the drip tray is to the dipping of dip roll.
The course of work of the present utility model is: buncher drives the upper filter screen home roll by decelerator and rotates, and it is at the uniform velocity mobile to drive upper filter screen, the hopper that is arranged on filter press crown center position paves the paper pulp in the hopper on the upper filter screen that moves uniformly, paper pulp carries out gravity dehydration in advance in the moving of filter screen, when upper filter screen moves to the front end of filter press, finish the paper pulp of gravity dehydration in advance and fallen the plane of stretching out on lower filter screen automatically, along with the continuation of filter screen is moved, paper pulp enters by upper filter screen and lower filter screen and fits mutually and in the crack that forms, under the guiding of guide roller, the double-layer leaching net of clamping paper pulp enters the unit squeezing of first order displacement pressing device; Enter in the drip tray under the guiding of dip roll by the double-layer leaching net after the squeezing of first order displacement pressing device unit and to flood, make the black liquor in the paper pulp soak into diffusion, and in moving, filter screen utilize spray header to spray the clean clean oar water of washing, enter second level displacement pressing device unit squeezing again, displace the black liquor in the paper pulp; And the like,, black liquor in the paper pulp is finished repeatedly soak into diffusion and spray header to spray and washed oar.At last, the double-layer leaching net of clamping paper pulp enters the squeezing of terminal pressing device, and the paper pulp that squeezing is finished is discharged filter press between upper filter screen home roll and lower filter screen home roll, finish and wash the oar operation.Because drip tray delivery port of the present utility model connects into as a whole stairstepping structure, back road squeezing process squeezes out washes the drip tray that oar water will flow into preceding road squeezing process automatically, participate in the dip roll place paper pulp in the double-layer leaching net of clamping paper pulp is soaked into washing, make black liquor diffusion, so that displacement black liquor during squeezing afterwards.
Four, description of drawings
Below in conjunction with accompanying drawing the utility model is done a more detailed nearly step explanation
Fig. 1 is a general layout front view of the present utility model
Fig. 2 is the structure chart of the utility model displacement pressing device unit
The utility model shown in Figure 1 is made up of buncher, decelerator, frame 1, hopper 2, upper filter screen home roll 3, lower filter screen home roll 4, upper filter screen 5, lower filter screen 6, filter screen deviation correcting device 7, net washing device 8, filter screen stretcher 9, terminal pressing device 10 and displacement pressing device unit etc.Upper filter screen 5 is a closed loop shape, is fixed on the top of frame 1 by upper filter screen home roll 3, and by 9 tensionings of filter screen stretcher, semi-ring is partly installed filter screen deviation correcting device 7, net washing device 8, hopper 2 etc. thereon; Lower filter screen 6 also is a closed loop shape, is fixed on the below of frame 1 by lower filter screen home roll 4, by 9 tensionings of filter screen stretcher, at its second loop section filter screen deviation correcting device 7, net washing device 8 is installed.Fitting in two planes of the following semi-ring of upper filter screen 5 and the last semi-ring of lower filter screen 6, forms crack, and paper pulp can enter in the crack, and two nets of two plane applyings enter displacement pressing devices at different levels unit successively, enter terminal pressing device 10 at last.In the technological process of the present utility model everywhere drip tray 19 delivery ports when mounted from after reduce successively forward, make drip tray 19 delivery ports connect into as a whole stairstepping, thereby guarantee the drip tray 19 that oar water can flow into preceding working procedure automatically of washing of later process, the water in the participation preceding working procedure in the drip tray 19 is to the dipping of clamping paper pulp filter screen under the dip roll.
Displacement pressing device of the present utility model shown in Figure 2 unit presses roller 12 by fixing, pressure presses roller 13, main press rocking arm 14, secondary squeezing rocking arm 15, press for extracting juice roller elastic pressuring clamping device 16, spacing pressing plate 17, dip roll 18, drip tray 19 and spray header 20 and forms.The fixing roller 12 that presses is fixed on the frame 1; Pressure presses roller 13 and is installed on the secondary squeezing rocking arm 15; Hole and main press rocking arm 14 De Kong Hinge on the secondary squeezing rocking arm 15 connect; One end of main press rocking arm 14 and frame 1 Hinge connect, and the other end is connected and presses on the roller elastic pressuring clamping device 16; It is spacing by spacing pressing plate 17 to press roller elastic pressuring clamping device 16; Drip tray 19 is installed in the below of fixing press for extracting juice roller 12 and is fixed on the frame 1; Dip roll 18 is fixedly mounted on the lowest part of drip tray 19 front portions; Spray header 20 is installed in the fixing top of roller 12 upper limbs and dip roll 18 lower edge tangent lines and the place of close dip roll 18 of pressing.During work of the present utility model, buncher drives upper filter screen home roll 3 by decelerator and rotates, and it is at the uniform velocity mobile to drive upper filter screen 5, the hopper 2 that is arranged on filter press crown center position paves the paper pulp in the hopper 2 on the upper filter screen 5 that moves uniformly, paper pulp carries out gravity dehydration in advance in the moving of upper filter screen 5, when upper filter screen 5 moves to the front end of filter press, having finished in advance, the paper pulp of gravity dehydration falls automatically on the platform that lower filter screen 6 stretches out, along with the continuation of filter screen is moved, paper pulp enters by upper filter screen 5 and lower filter screen 6 and fits mutually and in the crack that forms, under the guiding of guide roller 11, the double-layer leaching net of clamping paper pulp enters the unit squeezing of first order displacement pressing device; Under the guiding of dip roll 18, enter dipping in the drip tray 19 by the double-layer leaching net after the unit squeezing of first order displacement pressing device, make the black liquor in the paper pulp soak into diffusion, and the double-layer leaching net that utilizes spray header 20 clamping paper pulp in filter screen moves sprays the clean clean oar water of washing, enter second level displacement pressing device unit squeezing again, displace the black liquor in the paper pulp; Many covers can be arranged in displacement pressing device unit in the technological process of filter press, its effect is identical, and the like repeatedly squeeze.At last, the double-layer leaching net of clamping paper pulp enters 10 squeezings of terminal pressing device, and the paper pulp that squeezing is finished is discharged filter press between upper filter screen home roll 3 and lower filter screen home roll 4, finish and wash the oar operation.Because the delivery port of each drip tray 19 of the present utility model reduces successively from the back to preceding when mounted, connect into as a whole stairstepping structure, back road squeezing process squeezes out washes the drip tray 19 that oar water will flow into preceding road squeezing process automatically, participate in dip roll 18 places the paper pulp in the double-layer leaching net of clamping paper pulp is soaked into washing, make the black liquor diffusion, so that when squeezing, cement out more black liquor.
The utility model technology is all used gravity with the predrainage stage of prior art compared with the prior art Dehydration technique is improved to the version that gravity dehydration technology and press dewatering technology combine, and has improved in advance and has taken off The ability of water; And in predrainage squeezing displacement apparatus unit, utilize the two of dip roll guiding clamping paper pulp The metafiltration net enters in the drip tray paper pulp is infiltrated washing, makes black liquor diffusion, and in technological process repeatedly The squeezing displacement. Owing to adopt above structure and technology, the utility model is existing to the recovery rate ratio of black liquor Technology improves 20% to the black liquor recovery rate, therefore obviously alleviates the burden of rear operation, has improved and has produced effect Rate; Simultaneously, the delivery port of each drip tray 19 of the present utility model is installed as one stairstepping structure, Low early and high after, the oar water meeting of washing of rear operation flows in the drip tray 19 of front operation automatically, paper pulp is infiltrated wash Wash and black liquor diffusion, realized that reverse counterflow washes oar technology. Adopt reverse counterflow to wash oar technology, make and wash oar water Repeatedly Reusability has reduced the waste of water resource, has saved the wastewater treatment expenses, has reduced papermaking Cost plays the positive role of protection of the environment.
Claims (5)
1. a displacement filter press is by buncher, decelerator, frame (1), hopper (2), upper filter screen home roll (3), lower filter screen home roll (4), upper filter screen (5), lower filter screen (6), filter screen deviation correcting device (7), net washing device (8), filter screen stretcher (9), compositions such as terminal pressing device (10) and displacement pressing device unit, it is characterized in that: displacement pressing device unit is by the fixing roller (12) that presses, pressure presses roller (13), main press rocking arm (14), secondary squeezing rocking arm (15), press roller elastic pressuring clamping device (16), spacing pressing plate (17), dip roll (18), drip tray (19) and spray header (20) are formed; The fixing roller (12) that presses is fixed on the frame (1); Pressure presses roller (13) and is installed on the secondary squeezing rocking arm (15); Hole and main press rocking arm (14) De Kong Hinge on the secondary squeezing rocking arm (15) connect; One end of main press rocking arm (14) and frame 1 Hinge connect, and the other end is connected and presses on the roller elastic pressuring clamping device (16); It is spacing by spacing pressing plate (17) to press roller elastic pressuring clamping device (16); Drip tray (19) is installed in the below of fixing press for extracting juice roller (12) and is fixed on the frame (1).
2. displacement filter press according to claim 1 is characterized in that: displacement pressing device unit can be arranged in the technological process of displacement filter press more than the cover, forms displacement pressing device group by many covers.
3. displacement filter press according to claim 1 is characterized in that: everywhere drip tray (19) delivery port when mounted from after reduce successively forward, make drip tray (19) delivery port connect into as a whole stairstepping.
4. displacement filter press according to claim 1 is characterized in that: dip roll (18) is fixedly mounted on the anterior lowest part of drip tray (19).
5. displacement filter press according to claim 1 is characterized in that: spray header (20) is installed in the fixing top of roller (12) upper limb and dip roll (18) lower edge tangent line and the place of close dip roll (18) of pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201328300U CN201033269Y (en) | 2006-08-20 | 2006-08-20 | Transposing pressure filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201328300U CN201033269Y (en) | 2006-08-20 | 2006-08-20 | Transposing pressure filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201033269Y true CN201033269Y (en) | 2008-03-12 |
Family
ID=39194162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201328300U Expired - Fee Related CN201033269Y (en) | 2006-08-20 | 2006-08-20 | Transposing pressure filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201033269Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794046A (en) * | 2012-07-11 | 2012-11-28 | 广西力源宝农林科技发展有限责任公司 | Multi-tensioning belt filter press |
| CN104524846A (en) * | 2014-12-15 | 2015-04-22 | 山东鲁台集团枣庄市鲁都造纸机械有限公司 | Two-sided dewatering upper squeezing belt filter press for wedge-shaped pressurizing sawtooth groove |
-
2006
- 2006-08-20 CN CNU2006201328300U patent/CN201033269Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794046A (en) * | 2012-07-11 | 2012-11-28 | 广西力源宝农林科技发展有限责任公司 | Multi-tensioning belt filter press |
| CN102794046B (en) * | 2012-07-11 | 2015-02-04 | 广西力源宝科技有限公司 | Multi-tensioning belt filter press |
| CN104524846A (en) * | 2014-12-15 | 2015-04-22 | 山东鲁台集团枣庄市鲁都造纸机械有限公司 | Two-sided dewatering upper squeezing belt filter press for wedge-shaped pressurizing sawtooth groove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |