CN102409573A - Recycling method of pulping wastewater - Google Patents
Recycling method of pulping wastewater Download PDFInfo
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- CN102409573A CN102409573A CN2011104175247A CN201110417524A CN102409573A CN 102409573 A CN102409573 A CN 102409573A CN 2011104175247 A CN2011104175247 A CN 2011104175247A CN 201110417524 A CN201110417524 A CN 201110417524A CN 102409573 A CN102409573 A CN 102409573A
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Abstract
The invention discloses a recycling method of pulping wastewater. In the method provided by the invention, a wastewater pond, a pulper and a multi-disc concentrator are adopted; a waste paper box immersing pond is arranged beside the wastewater pond, a water feeding pipeline is communicated between the wastewater pond and the pulper, and a spraying pipeline is communicated between the wastewater pond and the immersing pond; a shower nozzle of the spraying pipeline is arranged above the waste paper box immersing pond; a wastewater outflow pipeline is arranged between the multi-disc concentrator and the wastewater pond; water pumps are communicated to the water feeding pipeline and the spraying pipeline. The recycling method comprises the following steps of: (1) taking water out of the wastewater tank and spraying the water on the waste paper box through the spray nozzle of the spraying pipeline; immersing the waste paper box for 3-4 hours until the waste paper box is sufficiently permeated; (2) taking out the immersed waste paper box and putting the immersed waste paper box into the pulper; pumping the water from the wastewater pond and adding the water into the pulper; and starting an agitating device to shred the paper; and (3) purifying and screening the pulp pulped in the step (2) and then conveying the purified and screened pulp into the multi-disc concentrator to be concentrated and stored; and flowing the concentrated wastewater into the wastewater pond through the wastewater outflow pipeline.
Description
Technical field
The present invention relates to field of papermaking, be specifically related to the corrugated paper factory effluent recycle in the field of papermaking.
Background technology
Corrugated paper is a raw material with waste paper, litter decoration etc. generally, through pulping, screening, flotation and copy production processes such as paper and process, in these production processes, all will produce a large amount of waste water.Main Ingredients and Appearance in the waste water is tiny suspension fiber, papermaking filler, waste paper impurity and a small amount of pectin, wax, carbohydrate, and all kinds of organic and inorganic compound that adds in the paper process.Generally, the displacement of ton paper product is at 70～80 cubic metres.At present; The method of both at home and abroad paper waste being handled has: the precipitation method, air supporting method, biochemical process etc.; These methods have played better effect for the pollution that reduces paper waste, but also exist following deficiency: the one, and the abatement equipment investment in fixed assets is big, and is domestic with the precipitation method, air supporting France and Japan processing 5000-10000 ton waste water; It is made an investment in about 2,000,000 yuan, and the biochemical process investment is then bigger; The 2nd, operating cost is higher, and wastewater treatment expense per ton is between 5-7 unit; The 3rd, because ton paper water consumption big (generally between the 20-30 ton), water resource waste is serious.The wastewater flow rate that in size degradation, pulping process, produces of waste paper, litter decoration bigger (waste water of generation per ton is about 60 tons) wherein, it is medium pending that these waste water major parts flow directly into plant area Wastewater Concentrated pond, increased wastewater treatment capacity.
Summary of the invention
The technical problem that the present invention will solve provides a kind of pulp-making waste-water recycle method (referring to that mainly shredded paper, the waste water in this stage of slurrying recycle), and not only equipment investment is few, and operating cost is low, what is more important conserve water resource.
The present invention realizes through following technical scheme:
A kind of pulp-making waste-water recycle method comprises wastewater disposal basin, pulper, polydisc thickener; Be provided with the litter decoration fermentation vat on the wastewater disposal basin side, be communicated with the filler pipe road between said wastewater disposal basin and the pulper, and be communicated with spray piping between the fermentation vat, the shower nozzle of said spray piping is arranged at litter decoration fermentation vat top; Be provided with waste water between said polydisc thickener and the wastewater disposal basin and flow out pipeline; Be communicated with water pump on said filler pipe road and the spray piping;
The recycle method comprises the following steps:
(1) shower nozzle that water in the wastewater disposal basin is taken out through spray piping is sprayed on the litter decoration, soaks it fully to be soaked in 3-4 hour;
(2) litter decoration after step (1) immersion is taken out in the entering pulper, and water adds in the pulper in the extraction wastewater disposal basin, starts the agitating device shredded paper;
(3) slurry behind step (2) pulping concentrates storage through being delivered to the polydisc thickener after purifying, screening, and the waste water after concentrating flows in the wastewater disposal basin through described waste water outflow pipeline.
The further improvement project of the present invention is, the shower nozzle of said spray piping is the annular hollow structure, and it is communicated with spray piping, or shower nozzle is circular straighttube, and the one of which end is communicated with spray piping, and the other end is a blind pipe; Said shower nozzle is provided with some spray orifices.Said shower nozzle is arranged on the support.
The present invention further improvement project is, said filler pipe road, spray piping one end are communicated in pulper, shower nozzle respectively, the other end back water pump outlet that is interconnected, and pump entrance is communicated in the wastewater disposal basin bottom.
The present invention further improvement project is, on the pipeline between water pump and the wastewater disposal basin, and on the filler pipe road between water pump and pulper, the shower nozzle, spray piping, is respectively equipped with switch valve.
The present invention compared with prior art has following obvious advantage:
One, used device is few, can effectively control discharged waste water, reduces cost.
Two, this cover closed cycle system plain boiled water utilization rate is high, and operating cost is low, has effectively reduced the water consumption of ton paper, and ton paper water is reduced to the 5-7 ton, occupies leading domestic status.
Three, reduce the processing pressure and the processing cost of sewage, the conserve water resource.
Description of drawings
Fig. 1 is a sketch map of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes wastewater disposal basin 1, pulper 2, polydisc thickener 3.Still as shown in Figure 1, be provided with litter decoration fermentation vat 4 on wastewater disposal basin 1 side, be communicated with filler pipe road 5 between said wastewater disposal basin and the pulper 2, and be communicated with spray piping 6 between the fermentation vat 4, the shower nozzle 7 of said spray piping 6 is arranged at litter decoration fermentation vat 4 tops.Still as shown in Figure 1, the shower nozzle 7 of spray piping 6 is a circular straighttube, and the one of which end is communicated with spray piping 6, and the other end is a blind pipe; Said shower nozzle 7 is provided with some spray orifices (spray orifice is arranged on the tube wall of circular straighttube axis with upper/lower positions, and diagram is not provided).Said shower nozzle 7 is arranged on the support 8.
Still as shown in Figure 1, be provided with waste water between said polydisc thickener 3 and the wastewater disposal basin and flow out pipeline 9.Said filler pipe road 5, spray piping 6 one ends are communicated in pulper 2, shower nozzle 7 respectively, water pump 10 outlets after the other end is interconnected, and water pump 10 inlets are communicated in wastewater disposal basin 1 bottom.On the connecting pipe 11 between water pump 10 and the wastewater disposal basin 1, and on the filler pipe road 5 between water pump 10 and pulper 2, the shower nozzle 7, spray piping 6, be respectively equipped with switch valve 12.
The recycle method comprises the following steps: that (1) is sprayed to the shower nozzle that water in the wastewater disposal basin takes out through spray piping on the litter decoration, soaks it fully to be soaked in 3-4 hour;
(2) pulper is put in the litter decoration taking-up after step (1) immersion, and water adds in the pulper in the extraction wastewater disposal basin, starts the agitating device shredded paper; When water in the wastewater disposal basin can not be satisfied the demand, give shredder moisturizing (water source comes from the water after sewage device is handled) through water pump 13.
(3) slurry in step (2) pulper is delivered to the polydisc thickener through chain scraper conveyor and concentrates, and the waste water after concentrating flows out pipeline through described waste water and flows in the wastewater disposal basin.The chain scraper conveyor diagram is not provided.
In the present embodiment, water pump 10 is selected Q=380m3/h for use; H=38m; P=55kw.
Claims (5)
1. pulp-making waste-water recycle method; Comprise wastewater disposal basin, pulper, polydisc thickener; It is characterized in that: at the other litter decoration fermentation vat that is provided with of wastewater disposal basin; Be communicated with the filler pipe road between said wastewater disposal basin and the pulper, and be communicated with spray piping between the fermentation vat, the shower nozzle of said spray piping is arranged at litter decoration fermentation vat top; Be provided with waste water between said polydisc thickener and the wastewater disposal basin and flow out pipeline; Said filler pipe road and spray piping are provided with water pump;
The recycle method comprises the following steps:
(1) shower nozzle that water in the wastewater disposal basin is taken out through spray piping is sprayed on the litter decoration, soaks it fully to be soaked in 3-4 hour;
(2) litter decoration after step (1) immersion is taken out in the entering pulper, and water adds in the pulper in the extraction wastewater disposal basin, starts the agitating device shredded paper;
(3) slurry behind step (2) pulping concentrates storage through being delivered to the polydisc thickener after purifying, screening, and the waste water after concentrating flows in the wastewater disposal basin through described waste water outflow pipeline.
2. a kind of pulp-making waste-water recycle method as claimed in claim 1; It is characterized in that: the shower nozzle of said spray piping is for being the annular hollow structure, and it is communicated with spray piping, or shower nozzle is a circular straighttube; The one of which end is communicated with spray piping, and the other end is a blind pipe; Said shower nozzle is provided with some spray orifices.
3. according to claim 1 or claim 2 a kind of pulp-making waste-water recycle method, it is characterized in that: said shower nozzle is arranged on the support.
4. a kind of pulp-making waste-water recycle method as claimed in claim 1 is characterized in that: said filler pipe road, spray piping one end are communicated in pulper, shower nozzle respectively, water pump outlet after the other end is interconnected, and pump entrance is communicated in the wastewater disposal basin bottom.
5. a kind of pulp-making waste-water recycle method as claimed in claim 4 is characterized in that: on the pipeline between water pump and the wastewater disposal basin, and on the filler pipe road between water pump and pulper, the shower nozzle, spray piping, be respectively equipped with switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104175247A CN102409573A (en) | 2011-12-14 | 2011-12-14 | Recycling method of pulping wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104175247A CN102409573A (en) | 2011-12-14 | 2011-12-14 | Recycling method of pulping wastewater |
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| CN102409573A true CN102409573A (en) | 2012-04-11 |
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| CN2011104175247A Pending CN102409573A (en) | 2011-12-14 | 2011-12-14 | Recycling method of pulping wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747632A (en) * | 2012-07-24 | 2012-10-24 | 金红叶纸业集团有限公司 | Slurry dispersing system and slurry dispersing process |
| CN103669086A (en) * | 2012-09-10 | 2014-03-26 | 上海东冠纸业有限公司 | Paper machine strongwhite water pool pipeline system low in energy consumption |
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| US4115188A (en) * | 1975-09-11 | 1978-09-19 | Brien Richard C O | Method for recycling paper mill waste water |
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| CN1247249A (en) * | 1999-09-10 | 2000-03-15 | 傅承祖 | Technology for regenerating waste paper without discharge of waste liquid |
| CN101153471A (en) * | 2006-09-27 | 2008-04-02 | 吴解生 | Non-process sealing circulation technology for wastewater from pulp and paper making by non-delignify reaction |
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2011
- 2011-12-14 CN CN2011104175247A patent/CN102409573A/en active Pending
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| GB1535001A (en) * | 1976-03-13 | 1978-12-06 | Voith Gmbh J M | Process and apparatus for recovery of material from waste paper |
| CN1247249A (en) * | 1999-09-10 | 2000-03-15 | 傅承祖 | Technology for regenerating waste paper without discharge of waste liquid |
| CN101153471A (en) * | 2006-09-27 | 2008-04-02 | 吴解生 | Non-process sealing circulation technology for wastewater from pulp and paper making by non-delignify reaction |
| CN101798768A (en) * | 2009-05-13 | 2010-08-11 | 侯俊民 | Waste paper regeneration environmental protection device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747632A (en) * | 2012-07-24 | 2012-10-24 | 金红叶纸业集团有限公司 | Slurry dispersing system and slurry dispersing process |
| CN103669086A (en) * | 2012-09-10 | 2014-03-26 | 上海东冠纸业有限公司 | Paper machine strongwhite water pool pipeline system low in energy consumption |
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Application publication date: 20120411 |