CN104594093B - A kind of water circulation system of paper-making pulping process - Google Patents
A kind of water circulation system of paper-making pulping process Download PDFInfo
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- CN104594093B CN104594093B CN201410800335.1A CN201410800335A CN104594093B CN 104594093 B CN104594093 B CN 104594093B CN 201410800335 A CN201410800335 A CN 201410800335A CN 104594093 B CN104594093 B CN 104594093B
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- Prior art keywords
- system equipment
- equipment
- filtrate
- water circulation
- preg
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004537 pulping Methods 0.000 title claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 65
- 239000000706 filtrate Substances 0.000 claims abstract description 60
- 239000000835 fiber Substances 0.000 claims abstract description 56
- 238000011084 recovery Methods 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 239000002562 thickening agent Substances 0.000 claims abstract description 21
- 239000002023 wood Substances 0.000 claims abstract description 20
- 238000004064 recycling Methods 0.000 claims abstract description 19
- 238000011010 flushing procedure Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 19
- 238000004061 bleaching Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 18
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- 238000007670 refining Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 102100027674 CTD small phosphatase-like protein Human genes 0.000 description 1
- 101710156847 CTD small phosphatase-like protein Proteins 0.000 description 1
- 102100027668 Carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 1 Human genes 0.000 description 1
- 101710134395 Carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 1 Proteins 0.000 description 1
- 102100027667 Carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 2 Human genes 0.000 description 1
- 101710134389 Carboxy-terminal domain RNA polymerase II polypeptide A small phosphatase 2 Proteins 0.000 description 1
- 101150085946 MSD2 gene Proteins 0.000 description 1
- 101100112811 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CDC5 gene Proteins 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 101150018041 msd1 gene Proteins 0.000 description 1
- PUPNJSIFIXXJCH-UHFFFAOYSA-N n-(4-hydroxyphenyl)-2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetamide Chemical compound C1=CC(O)=CC=C1NC(=O)CN1S(=O)(=O)C2=CC=CC=C2C1=O PUPNJSIFIXXJCH-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- -1 such as Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0014—Combination of various pulping processes with one or several recovery systems (cross-recovery)
Landscapes
- Paper (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention provides the water circulation system of a kind of paper-making pulping process, polydisc thickener filtrate and reducing rules line fiber recycling machine filtrate are used for wood chip washing system equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and the flushing water of highly concentrated grinding system equipment by described water circulation system.The water circulation system of the paper-making pulping process that the present invention provides, by reducing rules line fiber recycling machine (the least polydisc) filtrate and polydisc thickener (the biggest polydisc) filtrate are used for wood chip washing system equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and the flushing water of highly concentrated grinding system equipment, on the one hand, decrease the generation amount of waste water, reduce the operating pressure of wastewater treatment working section；On the other hand, decrease wood chip washing system equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and the clear water usage amount of highly concentrated grinding system equipment flushing water, saved water resource.
Description
Technical field
The present invention relates to the technical field of paper-making pulping, be specifically related to a kind of paper-making pulping process
Water circulation system.
Background technology
Reducing rules line fiber recycling machine (the least polydisc) filtrate, polydisc thickener (the biggest polydisc)
Filtrate is two kinds of process waters that in pulping water system, generation amount is bigger.At present, both process waters are big
Part is admitted to waste water collection tank, delivers to back segment (evaporator section) as waste water and goes to process, and makes
The equipment that paper technique is follow-up needs again substantial amounts of water as flushing water, such as, wood chip washing system,
Pre-preg system, high consistency refining system etc..
As described above, by reducing rules line fiber recycling machine (the least polydisc) in prior art
Filtrate and polydisc thickener (the biggest polydisc) filtrate enter wastewater trough as waste water and process, and one
Aspect is big due to wastewater flow rate, brings the biggest pressure to wastewater treatment working section, on the other hand, right
When wood chip washing system, pre-preg system, high consistency refining system etc. are rinsed, need to consume greatly
Amount clear water, waste water resource.
Summary of the invention
The embodiment of the present invention provides the water circulation system of a kind of paper-making pulping process, to solve existing skill
Reducing rules line fiber recycling machine (the least polydisc) filtrate and polydisc thickener (the biggest polydisc) in art
Filtrate process that the wastewater treatment working section pressure that brings is excessive as waste water and follow-up equipment (wood chip is washed
Wash system equipment, pre-preg system equipment, high consistency refining system equipment etc.) need a large amount of clear water to make
The technical problem wasted water is caused for flushing water.
For solving the problems referred to above, embodiments provide the water circulation of a kind of paper-making pulping process
System, polydisc thickener filtrate is used for wood chip washing system equipment, preimpregnation by described water circulation system
Stain system equipment, slurry washing system equipment, fiber recovery system equipment and highly concentrated grinding system set
Standby flushing water.
According to one preferred embodiment of the present invention, reducing rules line fiber is also reclaimed by described water circulation system
Machine filter liquid is used for described washing system equipment, described pre-preg system equipment, described slurry washing system
System equipment, described fiber recovery system equipment and the flushing water of described highly concentrated grinding system equipment.
According to one preferred embodiment of the present invention, described polydisc thickener filtrate presses clear filter in first
Liquid pump is transported to described washing system equipment, described pre-preg system equipment, described slurry washing
The liquid of system equipment, described fiber recovery system equipment and described highly concentrated grinding system equipment adds
Place.
According to one preferred embodiment of the present invention, described reducing rules line fiber recycling machine filtrate passes through second
Middle pressure clear filtrate pump is transported to described washing system equipment, described pre-preg system equipment, described
Slurry washing system equipment, described fiber recovery system equipment and described highly concentrated grinding system equipment
Liquid adds place.
According to one preferred embodiment of the present invention, described polydisc thickener filtrate is also by low pressure clear filtrate
Pump is transported to sewage collecting tank, pressurized screen, scummer, mud settling tank.
According to one preferred embodiment of the present invention, described reducing rules line fiber recycling machine filtrate separately through
Pipeline is transported to described washing system equipment, described pre-preg system equipment, described slurry washing
The liquid of system equipment, described fiber recovery system equipment and described highly concentrated grinding system equipment adds
Place or import with described polydisc thickener filtrate and be transported to described washing system after same pipeline again
System equipment, described pre-preg system equipment, described slurry washing system equipment, described fiber recovery
The liquid of system equipment and described highly concentrated grinding system equipment adds place.
According to one preferred embodiment of the present invention, described wood chip washing system equipment includes double dewatering spiral
Machine, BW3000 sieve bend and thin thing extruder；Described pre-preg system equipment includes BW1500
Sieve bend, feeding serew machine and master screw extruder.
According to one preferred embodiment of the present invention, described slurry washing system equipment includes that master screw squeezes
Pulp grinder, bleaching tower are to press master pipeline；Described fiber recovery system equipment includes fibre recovery machine；
Described highly concentrated grinding system equipment includes plug screw discharging machine, neat and well spaced screw machine, highly concentrated mill blow-off pipe
And plug screw feeder.
According to one preferred embodiment of the present invention, described wood chip washing system, described pre-preg system,
Described slurry washing system, described fiber recovery system and described highly concentrated grinding system each equipment pipeline
On be respectively equipped with control valve, for controlling the flow of filtrate.
According to one preferred embodiment of the present invention, the main line of described water circulation system is provided with master control
Valve, for controlling the opening and closing of described water circulation system.
Relative to prior art, the water circulation system of the paper-making pulping process that the present invention provides, pass through
Reducing rules line fiber recycling machine (the least polydisc) filtrate and polydisc thickener (the biggest polydisc) are filtered
Liquid is used for wood chip washing system equipment, pre-preg system equipment, slurry washing system equipment, fiber
Recovery system equipment and the flushing water of highly concentrated grinding system equipment, on the one hand, decrease the product of waste water
Raw amount, reduces the operating pressure of wastewater treatment working section；On the other hand, chip washing system is decreased
System equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and
The clear water usage amount of highly concentrated grinding system equipment flushing water, has saved water resource.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, embodiment will be retouched below
In stating, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below
It is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of water circulation system one preferred embodiment of paper-making pulping process of the present invention
Figure.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the present invention is described in further detail.Refer in particular to
Going out, following example are merely to illustrate the present invention, but do not limit the scope of the present invention
Fixed.Same, following example are only the section Example of the present invention and not all embodiments,
Those of ordinary skill in the art obtained under not making creative work premise all other
Embodiment, broadly falls into the scope of protection of the invention.
Refer to the water circulation system one that Fig. 1, Fig. 1 are paper-making pulping process of the present invention be preferable to carry out
The structural representation of example.The water circulation system of this paper-making pulping process is by polydisc thickener (big polydisc)
100 filtrates and reducing rules line fiber recycling machine (little polydisc) 200 filtrates are for wood chip washing system
Equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and height
The flushing water of dense grinding system equipment.
Specifically, the water circulation system of this paper-making pulping process includes polydisc thickener 100, changes
Machine slurry line fiber recycling machine 200, first is pressed clear filtrate pump 110, second is pressed clear filtrate pump 210,
Each subsystem equipment and control valve etc..
Polydisc thickener 100 filtrate presses clear filtrate pump 110 to be transported to washing system in first
Equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and height
The liquid of dense grinding system equipment adds place.
Wherein, wood chip washing system equipment includes double dewatering spiral machine 300, BW3000 sieve bend
301 and thin thing extruder 303 etc.；Pre-preg system equipment include BW1500 sieve bend 302,
Feeding serew machine (including MSD1 (305), MSD2 (306)) and master screw extruder
307 etc.；Slurry washing system equipment includes that master screw press master 308 and bleaching tower are to shove
Machine pipeline etc.；Fiber recovery system equipment includes fibre recovery machine 309 etc.；Highly concentrated grinding system equipment
Including neat and well spaced screw machine 304, plug screw discharging machine (PSD) 310, highly concentrated mill blow-off pipe 311
And plug screw feeder (PSF) 312 etc., certainly, the watering equipment of each system is not limited to
Above-mentioned citing, uses polydisc thickener 100 filtrate and reducing rules line fiber recycling machine 200 filtrate
Need wetting system all within protection scope of the present invention in other.
Reducing rules line fiber recycling machine 200 filtrate presses clear filtrate pump 210 to be transported in second
Washing system equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system set
The liquid of standby and highly concentrated grinding system equipment adds place.
To starch the AOF calculation of line 600adt/D, fibre recovery machine clear filtrate enters waste water collection tank flow
About 2800-3500L/Min, and waste water collection tank delivers to the wastewater flow rate of evaporator section about
4200-4500L/Min.The proportion that polydisc clear filtrate accounts for wastewater flow rate is bigger.And wood chip washing system sets
Standby, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and highly concentrated
Grinding system equipment also needs to use clear water.Therefore one side wood chip washing system equipment, pre-preg system
System equipment, slurry washing system equipment, fiber recovery system equipment and highly concentrated grinding system equipment need
Clear water to be leaned on rinses, and the most substantial amounts of polydisc (includes big polydisc-polydisc thickener and little polydisc
-reducing rules line fiber recycling machine) clear filtrate squeezes into waste water collection tank and is finally sent to evaporation and carries out waste water
Processing, wastewater treatment working section is brought greatly bigger pressure by wastewater flow rate.Therefore, the technology of the application
Scheme solves above-mentioned technical problem well.
Polydisc thickener 100 filtrate is transported to other also by low pressure clear filtrate pump 120 and sets with water
Standby 130, these other watering equipments 130 include that sewage collecting tank, SCP1 filtrate receiver, SCP2 filter
Liquid bath, SCP3 filtrate receiver, pressurized screen, 5 sections of scummers, chip washing grit removal tanks etc..
Preferably, reducing rules line fiber recycling machine (little polydisc) 200 filtrates can be separately through pipeline
Be transported to washing system equipment, pre-preg system equipment, slurry washing system equipment, fiber return
The liquid receiving system equipment and highly concentrated grinding system equipment adds place, it is also possible to polydisc thickener
(big polydisc) 100 filtrate is transported to washing system equipment, pre-preg after importing same pipeline again
System equipment, slurry washing system equipment, fiber recovery system equipment and highly concentrated grinding system equipment
Liquid add place.Reducing rules line fiber recycling machine is given (little many in the diagram of the present embodiment
Dish) 100 filtrates and polydisc thickener (big polydisc) 200 filtrate is the most defeated after importing same pipeline
Deliver to washing system equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system
The liquid of system equipment and highly concentrated grinding system equipment adds the structural representation at place, but be not intended as right
The restriction of other possible embodiments of the present invention.
Wood chip washing system, pre-preg system, slurry washing system, fibre in the embodiment of the present application
It is respectively equipped with control valve 150 in dimension recovery system and highly concentrated grinding system each equipment pipeline, is used for
Control the flow of filtrate and as single switch valve.The main line of water circulation system is provided with always
Control valve 140, for controlling the opening and closing of water circulation system.It is, of course, also possible in first
Pressure clear filtrate pump 110, second presses clear filtrate pump 210 and the pipeline of low pressure clear filtrate pump 120
On be separately provided control valve (not marking in figure), in order to individually to control the working condition of each pipeline.
Within the scope of skilled artisans appreciate that, here is omitted.
Calculating with the water yield under 600adt/D production capacity, big polydisc clear filtrate is used in above-mentioned each pipeline or sieve
The amount of frame flushing water about about 1500L/Min.In production, clear water consumption is about 950 tons/class (8 is little
Time be 1 class).With little polydisc clear filtrate and big polydisc clear filtrate together as wood chip washing system,
The pipeline of pre-preg system, high consistency refining system etc. or screen frame flushing water, can reduce and send the useless of evaporation
Discharge about 1500L/Min, ton pulp waste water amount is down to 7T/ADT from 10T/ADT, it is evident that
Consume clear water amount to be substantially reduced.
The water circulation system of the paper-making pulping process of the embodiment of the present invention, by by reducing rules line fiber
Recycling machine (the least polydisc) filtrate and polydisc thickener (the biggest polydisc) filtrate are for chip washing
System equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment with
And the flushing water of highly concentrated grinding system equipment, on the one hand, decrease the generation amount of waste water, reduce useless
Water processes the operating pressure of workshop section；On the other hand, wood chip washing system equipment, pre-preg are decreased
System equipment, slurry washing system equipment, fiber recovery system equipment and highly concentrated grinding system equipment
The clear water usage amount of flushing water, has saved water resource.
The foregoing is only a kind of embodiment of the present invention, not thereby limit the protection model of the present invention
Enclosing, every equivalent device utilizing description of the invention and accompanying drawing content to be made or equivalence flow process become
Change, or be directly or indirectly used in other relevant technical fields, be the most in like manner included in the present invention's
In scope of patent protection.
Claims (9)
1. the water circulation system of a paper-making pulping process, it is characterised in that described water cyclic system
Polydisc thickener filtrate and reducing rules line fiber recycling machine filtrate are used for wood chip washing system by system
Equipment, pre-preg system equipment, slurry washing system equipment, fiber recovery system equipment and height
The flushing water of dense grinding system equipment.
Water circulation system the most according to claim 1, it is characterised in that described polydisc is dense
Contracting machine filter liquid presses clear filtrate pump to be transported to described washing system equipment, described preimpregnation in first
Stain system equipment, described slurry washing system equipment, described fiber recovery system equipment and described
The liquid of highly concentrated grinding system equipment adds place.
Water circulation system the most according to claim 1, it is characterised in that described reducing rules
Line fiber recycling machine filtrate by press in second clear filtrate pump be transported to described washing system equipment,
Described pre-preg system equipment, described slurry washing system equipment, described fiber recovery system equipment
And the liquid of described highly concentrated grinding system equipment adds place.
Water circulation system the most according to claim 1, it is characterised in that described polydisc is dense
Contracting machine filter liquid also by low pressure clear filtrate pump be transported to sewage collecting tank, filtrate receiver, pressurized screen,
Scummer, mud settling tank.
5. according to the water circulation system described in Claims 2 or 3, it is characterised in that describedization
Machine slurry line fiber recycling machine filtrate is transported to described washing system equipment, described separately through pipeline
Pre-preg system equipment, described slurry washing system equipment, described fiber recovery system equipment and
The liquid of described highly concentrated grinding system equipment adds place or imports same with described polydisc thickener filtrate
Described washing system equipment, described pre-preg system equipment, described slurry it is transported to again after one pipeline
Material washing system equipment, described fiber recovery system equipment and the liquid of described highly concentrated grinding system equipment
Body adds place.
Water circulation system the most according to claim 1, it is characterised in that described wood chip is washed
Wash system equipment and include double dewatering spiral machine, BW3000 sieve bend and thin thing extruder；Described
Pre-preg system equipment includes BW1500 sieve bend, feeding serew machine and master screw extruder.
Water circulation system the most according to claim 6, it is characterised in that described slurry is washed
Wash system equipment and include that master screw press master and bleaching tower are to press master pipeline；Described fiber returns
Receive system equipment and include fibre recovery machine；Described highly concentrated grinding system equipment includes plug screw unloading
Machine, neat and well spaced screw machine, highly concentrated mill blow-off pipe and plug screw feeder.
Water circulation system the most according to claim 7, it is characterised in that described wood chip is washed
Wash system, described pre-preg system, described slurry washing system, described fiber recovery system and
It is respectively equipped with control valve, for controlling the stream of filtrate on described highly concentrated grinding system each equipment pipeline
Amount.
Water circulation system the most according to claim 8, it is characterised in that described water circulates
The main line of system is provided with master control valve, for controlling the opening and closing of described water circulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800335.1A CN104594093B (en) | 2014-12-19 | 2014-12-19 | A kind of water circulation system of paper-making pulping process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800335.1A CN104594093B (en) | 2014-12-19 | 2014-12-19 | A kind of water circulation system of paper-making pulping process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594093A CN104594093A (en) | 2015-05-06 |
| CN104594093B true CN104594093B (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410800335.1A Expired - Fee Related CN104594093B (en) | 2014-12-19 | 2014-12-19 | A kind of water circulation system of paper-making pulping process |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106245398B (en) * | 2016-08-31 | 2018-01-02 | 玖龙纸业（太仓）有限公司 | A kind of deinking line polydisc and de-sludging method with de-sludging device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05247868A (en) * | 1992-02-28 | 1993-09-24 | Mitsubishi Paper Mills Ltd | Treatment of waste water in production of pulp |
| CN100395201C (en) * | 2006-09-08 | 2008-06-18 | 臧立新 | Treatment reuse technique for paper-making white-water |
| CN101838945B (en) * | 2010-06-23 | 2012-11-07 | 永州湘江纸业有限责任公司 | Papermaking wastewater recycling method |
| CN202170447U (en) * | 2011-07-15 | 2012-03-21 | 山东太阳纸业股份有限公司 | Evaporation and pre-processing production line for chemico-mechanical pulp |
-
2014
- 2014-12-19 CN CN201410800335.1A patent/CN104594093B/en not_active Expired - Fee Related
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| CN104594093A (en) | 2015-05-06 |
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Effective date of registration: 20201221 Address after: Area D12, Yangpu Economic Development Zone, Danzhou City, Hainan Province Patentee after: HAINAN JINHAI PULP & PAPER Co.,Ltd. Address before: 212132, No. 8 Tung Hing East Road, Dagang, Jiangsu, Zhenjiang Patentee before: Goldeast Paper (Jiangsu) Co.,Ltd. |
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