CN102154895A - Method for recycling white water by using white water recycling machine - Google Patents
Method for recycling white water by using white water recycling machine Download PDFInfo
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- CN102154895A CN102154895A CN 201110047750 CN201110047750A CN102154895A CN 102154895 A CN102154895 A CN 102154895A CN 201110047750 CN201110047750 CN 201110047750 CN 201110047750 A CN201110047750 A CN 201110047750A CN 102154895 A CN102154895 A CN 102154895A
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- white water
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Abstract
The invention discloses a method for recycling white water by using a white water recycling machine; the method comprises the following steps of: continuous fiber pulp is added at a white water inlet of the white water recycling machine so as to be used as cushion pulp; the continuous fiber pulp is formed through pulping of a pulper, desanding of a high-concentration desander, coarse screening and classifying of a classifying screen and then the cushion pulp is formed through fine screening, desanding of a low-concentration desander, concentration of a thickener and thermal dispersion. In the method, by adopting the continuous fiber pulp as the cushion pulp, the water filtration speed of white water recycling can be accelerated; and the optimization design of a flow path can increase the processing capacity of the white water recycling machine, can increase the processing capacity by using the existing resources without the need of increasing excessive investment, increases the recycling amount of fibers in white water, saves raw materials and reduces the cost of sewage treatment.
Description
Technical field
The present invention relates to a kind of white water recycle method, especially a kind of method of utilizing saveall to carry out white water recycle belongs to technical field of waste water processing.
Background technology
We know, saveall its mainly by the cloth bucket, cylinder, base, water retaining cover, sparge pipe and transmission device are formed, utilize rotation micro porous filtration principle, the waste water (as plain boiled water) that produces in the pulping and papermaking processes is carried out closed processing, be that saveall is divided into concentration different clear filtrate with plain boiled water by filter screen in the process of rotation, on paper technology, be called: turbid plain boiled water, pure water and super pure water, owing to be to utilize plain boiled water filtered version on filter screen to carry out the nature dehydration, so fibre concentration in the plain boiled water, drainage character, button Xie Du etc. are very big for the disposal ability influence of saveall, and add the concentration that staple fibre can improve plain boiled water in the plain boiled water porch of saveall, thereby form initial filter pressure, owing to greenery discharging downwards produces the filtrate that vacuum obtains variable concentrations, the fiber recovery that leaches is simultaneously joined slurry again in system then.
Carry out white water recycle and have following three kinds of effects: one, the loss fiber recovery in the waste water can be utilized, two, can reduce COD (chemical oxygen consumption (COC)), BOD(biochemical oxygen demand (BOD) in the waste water greatly), the SS(suspended matter) contamination index such as, the pollution abatement load, three, the waste water after filtering can the secondary reuse, can make full use of, the conserve water resource.
Utilize saveall to the course of work that plain boiled water reclaims to be: plain boiled water is after water inlet enters the cloth bucket, equably that water distribution is online in the cylinder of rotation, water is leached by filter screen under the gravity effect, the fiber after the filtration, under the guide vane water conservancy diversion that interior wire side is provided with, screw typely move, discharge, realize recycling until grout outlet to slurry output end, its concentration can reach more than the 3-6%, and the waste water after the filtration flows to the place of appointment or carries out secondary and use.
Fig. 1 carries out the structural representation of white water recycle for traditional saveall that utilizes;
As shown in Figure 1: traditional saveall that utilizes carries out in the method for white water recycle, mthod of white water from paper making enters storage bin 3 through water pump 2, enter then in the saveall 1, doing bed course at the water inlet of saveall 1 with short fibered pulp starches and improves white water consistency, drop when making it increase drainage, and then formation vacuum, plain boiled water is filtered, plain boiled water after filtering is then recycled, it is too high that the raw material of this kind mode changes the back short fibre content, can not reach the effect of quick drainage, this mode can not satisfy the requirement of production, and when causing plain boiled water to run off, fiber is also taken away loss by plain boiled water, the raw material of loss enterprise causes cost of sewage disposal to rise.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of saveall that utilizes that can effectively improve drainage capacity, reduction processing cost to carry out the method for white water recycle.
The present invention is achieved through the following technical solutions:
A kind of method of utilizing saveall to carry out white water recycle is characterized in that, adds long fiber pulp in the plain boiled water porch of saveall and starches as bed course.
The described method of utilizing saveall to carry out white water recycle, it is characterized in that, described long fiber pulp forms by pulper pulping, high concentration desanding device desanding, coarse fraction, classifying screen classification, and then through fine screen branch, low dense desander desanding, thickener concentrates and heat disperses the back to form the bed course slurry.
The invention has the beneficial effects as follows: the present invention starches as bed course by adopting long fiber pulp, can accelerate the drainage rate of white water recycle, optimal design through flow process, can reach the disposal ability that increases saveall, and need not increase excessive investment, utilize existing resource can improve disposal ability, increase the fiber recovery amount in the plain boiled water, save raw material, reduced the cost of sewage disposal.
Description of drawings
Fig. 1 carries out the structural representation of white water recycle for traditional saveall that utilizes;
Fig. 2 is the structural representation that utilizes saveall to carry out white water recycle of the present invention;
Fig. 3 is the schematic flow sheet that utilizes saveall to carry out the method for white water recycle of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, describe the specific embodiment of the present invention in detail:
Fig. 2 is the structural representation that utilizes saveall to carry out white water recycle of the present invention.
As shown in Figure 2: mthod of white water from paper making enters storage bin 3 through water pump 2, enters then in the saveall 1, adds long fiber pulp in the plain boiled water porch of saveall 1 and starches as bed course.
Fig. 3 is the schematic flow sheet that utilizes saveall to carry out the method for white water recycle of the present invention.
As shown in Figure 3: long fiber pulp forms long fiber pulp by pulper pulping, high concentration desanding device desanding, coarse fraction, classifying screen classification, and then through fine screen branch, low dense desander desanding, thickener concentrates and heat disperses the back to form the bed course slurry.
The present invention adopts the bed course slurry of long fiber pulp as the plain boiled water porch for the screen pack speed that improves plain boiled water, because long stapled weight in wet base is longer than staple fibre, generally can reach more than the 6.5g, and staple fibre has only 4.5-5g, and the beating degree long fiber has only 28 ° of SR, and staple fibre is 35-40 ° of SR, so long fiber can obviously improve drainage capacity.
Advancing overtesting, to obtain comparing result as follows: before transforming, the yield of plain boiled water is 780m
3/ h, waste paper unit consumption 1.23 per ton, and transform the back: the yield of plain boiled water is 1000m
3/ h, waste paper unit consumption 1.22 per ton, i.e. white water recycle treating capacity has increased by 20% than originally, and ton paper unit consumption has then descended 0.01.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (2)
1. a method of utilizing saveall to carry out white water recycle is characterized in that, adds long fiber in the plain boiled water porch of saveall and starches as bed course.
2. the method for utilizing saveall to carry out white water recycle according to claim 1, it is characterized in that, described long fiber forms long fiber pulp by pulper pulping, high concentration desanding device desanding, coarse fraction, classifying screen classification, and then through fine screen branch, low dense desander desanding, thickener concentrates and heat disperses the back to form the bed course slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110047750 CN102154895A (en) | 2011-02-28 | 2011-02-28 | Method for recycling white water by using white water recycling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110047750 CN102154895A (en) | 2011-02-28 | 2011-02-28 | Method for recycling white water by using white water recycling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102154895A true CN102154895A (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110047750 Pending CN102154895A (en) | 2011-02-28 | 2011-02-28 | Method for recycling white water by using white water recycling machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656530A (en) * | 2018-06-29 | 2020-01-07 | 玖龙纸业（东莞）有限公司 | Recovery method and recovery system of waste pulp for papermaking |
| CN114922001A (en) * | 2022-03-30 | 2022-08-19 | 金红叶纸业(南通)有限公司 | Household paper preparation method and pulp preparation system |
| CN117779510A (en) * | 2024-02-26 | 2024-03-29 | 山东科迈生物制浆有限公司 | Multi-disc cushion slurry for recycling fine fibers, preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349576A (en) * | 1999-05-03 | 2002-05-15 | 麦特索纸业公司 | Method and apparatu sfor recovering fibres from white water of paper mill |
| CN101768891A (en) * | 2009-12-25 | 2010-07-07 | 江苏理文造纸有限公司 | Kraft liner cardboard paper and manufacturing method thereof |
-
2011
- 2011-02-28 CN CN 201110047750 patent/CN102154895A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349576A (en) * | 1999-05-03 | 2002-05-15 | 麦特索纸业公司 | Method and apparatu sfor recovering fibres from white water of paper mill |
| CN101768891A (en) * | 2009-12-25 | 2010-07-07 | 江苏理文造纸有限公司 | Kraft liner cardboard paper and manufacturing method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656530A (en) * | 2018-06-29 | 2020-01-07 | 玖龙纸业（东莞）有限公司 | Recovery method and recovery system of waste pulp for papermaking |
| CN114922001A (en) * | 2022-03-30 | 2022-08-19 | 金红叶纸业(南通)有限公司 | Household paper preparation method and pulp preparation system |
| CN117779510A (en) * | 2024-02-26 | 2024-03-29 | 山东科迈生物制浆有限公司 | Multi-disc cushion slurry for recycling fine fibers, preparation method and application |
| CN117779510B (en) * | 2024-02-26 | 2024-05-31 | 山东科迈生物制浆有限公司 | Multi-disc cushion slurry for recycling fine fibers, preparation method and application |
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Application publication date: 20110817 |