CN103088689B - Zero discharging and recycling technology for waste paper or raw stock board papermaking wastewater - Google Patents
Zero discharging and recycling technology for waste paper or raw stock board papermaking wastewater Download PDFInfo
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- CN103088689B CN103088689B CN201310030261.3A CN201310030261A CN103088689B CN 103088689 B CN103088689 B CN 103088689B CN 201310030261 A CN201310030261 A CN 201310030261A CN 103088689 B CN103088689 B CN 103088689B
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Abstract
The invention relates to a zero discharging and recycling technology for waste paper or raw stock board papermaking wastewater. Paper sheet forming wastewater enters a main wastewater collection tank by a forming wastewater tank through a wastewater conveying construction member, paper pulp screening wastewater enters the main wastewater collection tank by a screening wastewater tank through the wastewater conveying construction member, paper sheet squeezing wastewater enters the main wastewater collection tank by a squeezing wastewater tank through the wastewater conveying construction member, carpet washing wastewater enters the main wastewater collection tank by the squeezing wastewater tank through the wastewater conveying construction member, and repulping wastewater enters the main wastewater collection tank by a repulping wastewater tank through the wastewater conveying construction member; a first wastewater reusing pump (3) is used for reusing the wastewater in the main wastewater collection tank in a pulper; and part of wastewater in the forming wastewater tank is reused for dilution of paper pulp, part of wastewater in the screening wastewater tank is reused in the pulper, a second waster wastewater reusing pump (6) is used for reusing part of wastewater in the squeezing wastewater tank for cleaning papermaking felts, an aerating apparatus (4) is arranged according to the zero discharging and recycling technology, and the zero discharging and recycling technology has the characteristics of zero discharging and total recovery of wastewater and reduction of construction cost and operating cost.
Description
Technical field
The present invention relates to waste paper making wastewater Zero-discharge reuse technique, specifically waste paper or sole plales are produced a wastewater zero discharge reuse technology for the paper usings such as firecrackers, firework and lead-in wire, also applicable to waste paper or sole plales, produce the paper making wastewater zero discharge reuse technologies such as corrugated paper, yellow plate paper, brown paper.
Background technology
Waste paper making wastewater comprises pulping waste water, pulp sifting waste water, paper machine operation waste water, and paper machine operation waste water also claims paper organic waste water, and paper organic waste water comprises sheet forming waste water, squeezing waste water, cleans in addition the cleaning waste water of woollen blanket.Process at present the treatment process of waste paper making wastewater, in dosing, adopt By Bubble-floating Method, or by after precipitation process, then by biochemical treatment, make effluent characteristics reach the backward outer discharge of discharge standard of regulation.
Application number is that 200810171975.5 patent documentation has been announced a kind of " paper making wastewater zero discharge technique ", this technique is the short recycling system of (also claiming " plain boiled water ") of paper organic waste water in workshop, comprise: paper organic waste water splits into enriched water and rare plain boiled water, enriched water enters rear section, enriched water pond and is back to slurry, rare plain boiled water enters rare white water chest, unnecessary enriched water and whole rare plain boiled water are used variable frequency pump to send into white water recycle device, white water recycle device comprises Buffer Pool and center distribution reservoir, after white water recycle device is processed, upper strata clear water enters valveless filtering pool, water after filtration is for production reuse, bottom waste water and mud enter radial-flow sedimentation tank and process, clear water is after treatment for reuse, filter residue is made into a blob of slag, for the production of wrapping paper raw material.Should " paper making wastewater zero discharge technique " relating to paper organic waste water processes the process of reuse and comprises the separated of enriched water and rare plain boiled water, the enriched water of redundance and the reuse of rare plain boiled water need be processed through Buffer Pool and center distribution reservoir, valveless filtering pool filters, radial-flow sedimentation tank precipitation operation, the operation of its Treatment for Reuse is many, related unit facility is many, manufacturing cost is higher, and only relate to the paper organic waste water treatment and reuse in paper waste, and, need be through filter residue being made to the operation of a blob of slag to produced sediment mud, its treatment process can not directly be back to production by sediment.
Summary of the invention
The object of the invention is to provide waste paper or sole plales paper making wastewater zero discharge reclamation set, the paper waste that uses waste paper or sole plales to produce the paper usings such as firecrackers, firework is realized to zero-emission fully recovering, and to produced sediment direct reuse in production, operation and the member of waste water recycling are few, process is simple.
Technical scheme of the present invention is referring to Fig. 1:
Be provided with total wastewater collection pond and waste water transfer member 1;
The screening waste water that pulp sifting produces, enters total wastewater collection pond by waste water transfer member 1;
The moulding waste water that sheet forming produces, enters total wastewater collection pond by waste water transfer member 1;
The squeezing waste water that page squeezing produces, enters total wastewater collection pond by waste water transfer member 1;
The cleaning waste water that cleans felt 2 generations enters total wastewater collection pond by transfer member 1;
The pulping waste water that pulper produces, enters total wastewater collection pond by waste water transfer member 1;
Be provided with the first waste water recycling pump 3, use the first waste water recycling pump 3 and with this pump reuse pipeline 3a that water end (W.E.) is connected by the waste water direct reuse in total wastewater collection pond in pulper.
Further, referring to Fig. 2:
Be provided with moulding wastewater disposal basin, the moulding waste water that sheet forming produces is through moulding wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member 1;
Be provided with screening wastewater disposal basin, the screening waste water that pulp sifting produces is through screening wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member 1;
Be provided with squeezing wastewater disposal basin, page squeezes the squeezing waste water of generation through squeezing wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member 1;
Clean the cleaning waste water of felt 2 through squeezing wastewater disposal basin, then enter total wastewater collection pond by described waste water transfer member 1;
Be provided with pulping wastewater disposal basin, the pulping waste water that pulper produces is through pulping wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member 1.
Be provided with the aerator 4 acting in total wastewater collection pond, aerator is in service, total sediment in wastewater collection pond is suspended, be beneficial to sediment with the reuse of waste water direct reuse in producing paper product.
The first step of the present invention is each waste water to be produced to a waste water producing by transfer member 1, enter total wastewater collection pond, or first enters corresponding wastewater disposal basin, and then enters total wastewater collection pond by described waste water transfer member 1; Second step is the pulper that uses the first waste water recycling pump 3 and by corresponding reuse pipeline 3a, the waste water direct reuse in total wastewater collection pond is arranged in vicinity, by the fully recovering to waste water, realizes wastewater zero discharge.
And, referring to 2:
Moulding wastewater disposal basin is provided with the first wastewater outlet, and the wastewater effluent mouth of moulding wastewater disposal basin communicates with paper pulp diluting tank, is about to the part waste water direct reuse of moulding wastewater disposal basin in the dilution of paper pulp;
Screening wastewater disposal basin be provided with the second wastewater outlet, and by conveyance conduit 5 by screening wastewater disposal basin part waste water direct reuse in pulper;
Be provided with the second waste water recycling pump 6, use the second waste water recycling pump 6 and with this pump water end (W.E.) is connected return pipe 6a by the part waste water direct reuse that squeezes wastewater disposal basin in the cleaning of felt 2.
In above-mentioned waste water direct reuse, the sediment in each wastewater disposal basin and suspended matter are back to corresponding each production process with waste water direct reuse.
During operation of the present invention, to entering pulper raw material before, first pass through artificial fine selection operation, effectively remove all kinds of not of uniform size and macroscopic foreign material in raw material.The papery that the present invention is based on firecrackers, firework and similar paper using requires to be different from the feature of writing paper, in waste water recycling process, make sediment in each wastewater disposal basin and suspended matter be back to paper product with the reuse of waste water and produce, and meet the papery requirement of similar paper usings such as producing firecrackers, firework.The present invention, in the sheet paper products of inner actual production, has been applied to the productions such as firecrackers, firework, all meets the requirement of production and product serviceability.
The technique effect that the present invention has is:
1, because producing a waste water producing by each waste water, the present invention enters total wastewater collection pond by waste water transfer member 1, for firecrackers, the papery of the similar paper using such as firework requires to be different from the feature of writing paper, by the waste water direct reuse in total wastewater collection pond in pulper, simultaneously, the part waste water direct reuse of moulding wastewater disposal basin can be diluted paper pulp in paper pulp diluting tank, can be by the part waste water direct reuse of screening wastewater disposal basin in pulper, the part waste water direct reuse of squeezing wastewater disposal basin can be cleaned in woollen blanket, make the whole waste water that produce in paper-making process from waste paper can obtain reuse, realize wastewater zero discharge, avoid environment to produce and pollute, be conducive to environmental protection.
2, for the papery of the similar paper usings such as firecrackers, firework, require to be different from the feature of writing paper, the present invention can realize the sediment in each wastewater disposal basin and suspended matter are back to the production of paper product with the reuse of waste water, the sheet paper products of using the present invention to produce at internal range, through practical application, meet production and the serviceability requirement of the paper usings such as firecrackers, firework, therefore, the present invention not only can make full use of raw material, economize on material, and can avoid sediment to form sludge creation secondary pollution;
3, because part waste water is directly delivered to by corresponding wastewater disposal basin the operation reuse closing on, and the waste water recycling in total wastewater collection pond is in the pulper that closes on setting, therefore, waste water recycling path is short, facility or member that waste water recycling process is related are few, simple in structure, can obviously reduce manufacturing cost and reduce operating cost.
4, due to the present invention, can realize the reuse of all waste water in paper-making process from waste paper, only in felt matting, supplement a small amount of new water, can reduce consumption, the reduction operating cost of fresh water consumption, minimizing water resource.
The other technologies effect that the present invention has will further describe in the specific embodiment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of process program of the present invention;
Fig. 2 is the schematic diagram of the embodiment of the present invention, determines that this figure is Figure of abstract;
Fig. 3 is the facade structures schematic diagram of moulding wastewater disposal basin and paper pulp diluting tank, has shown the wastewater outlet 7 of moulding wastewater disposal basin and the connectivity structure of paper pulp diluting tank;
Fig. 4 is the facade structures schematic diagram at squeezing wastewater disposal basin position, has shown in squeezing wastewater disposal basin that waste water direct reuse is in the schematic construction of cleaning felt 2.
The specific embodiment
Referring to accompanying drawing 1, be provided with total wastewater collection pond and waste water transfer member 1(as the transfer member of pipeline or other version); The pulping waste water that pulper produces, enters total wastewater collection pond by waste water transfer member 1; The pulp screen waste water that pulp sifting produces, enters total wastewater collection pond by waste water transfer member 1; The moulding waste water that sheet forming produces, enters total wastewater collection pond by waste water transfer member 1; The squeezing waste water that page squeezing produces, enters total wastewater collection pond by waste water transfer member 1; The cleaning waste water that cleans felt 2 generations enters total wastewater collection pond by transfer member 1; Be provided with the first waste water recycling pump 3, use the first waste water recycling pump 3 and with this pump reuse pipeline 3a that water end (W.E.) is connected by the waste water direct reuse in total wastewater collection pond in pulper;
Referring to Fig. 2, on the basis of scheme described above, pulping wastewater disposal basin is set, the outlet of pulping wastewater disposal basin is communicated with waste water transfer member 1, first the pulping waste water that pulper produces enter pulping wastewater disposal basin, then enter total wastewater collection pond by waste water transfer member 1; Screening wastewater disposal basin is set, and the outlet of screening wastewater disposal basin is communicated with waste water transfer member 1, and first the screening waste water that pulp sifting produces enter screening wastewater disposal basin, then enter total wastewater collection pond by waste water transfer member 1; Moulding wastewater disposal basin is set, and the outlet of moulding wastewater disposal basin is communicated with waste water transfer member 1, and first the moulding waste water that sheet forming produces enter moulding wastewater disposal basin, then enter total wastewater collection pond by waste water transfer member 1; Squeezing wastewater disposal basin is set, and the outlet of squeezing wastewater disposal basin is communicated with waste water transfer member 1, and first the squeezing waste water that page squeezing produces enter squeezing wastewater disposal basin, then enter total wastewater collection pond by waste water transfer member 1; The cleaning waste water that cleans felt 2 generations enters total wastewater collection pond two kinds of modes, preferably enters squeezing wastewater disposal basin, then enters total wastewater collection pond by waste water transfer member 1, also can enter total wastewater collection pond by the cleaning wastewater disposal basin arranging separately.
The waste water of described pulping wastewater disposal basin, screening wastewater disposal basin, moulding wastewater disposal basin, squeezing wastewater disposal basin enters total wastewater collection pond two kinds of forms, when the elevation of bottom of described wastewater disposal basin is during higher than total wastewater collection pond, by described waste water transfer member 1, make waste water in pond become gravity flow state to flow into total wastewater collection pond with sediment, when the elevation of bottom of described wastewater disposal basin is during lower than total wastewater collection pond, can adopt pump and described waste water transfer member 1 that waste water in wastewater disposal basin and sediment are sent into total wastewater collection pond.
The set-up mode of described pulping wastewater disposal basin, screening wastewater disposal basin, moulding wastewater disposal basin, squeezing wastewater disposal basin is not unique, and according to production equipment deployment scenarios, adjacent merges into one.
Referring to Fig. 2, moulding wastewater disposal basin is provided with the first wastewater outlet, and the wastewater effluent mouth of moulding wastewater disposal basin communicates with paper pulp diluting tank, is about to the part waste water direct reuse of moulding wastewater disposal basin in the dilution of paper pulp, as shown in the figure, one lower sidewall of moulding wastewater disposal basin is provided with the first described wastewater outlet 7, the first wastewater outlet 7 communicates with the bottom of paper pulp diluting tank, another side wall upper part of moulding wastewater disposal basin is provided with and can plays to the paper pulp liquid level in paper pulp diluting tank the outlet 8 of control action, when the water level of moulding wastewater disposal basin is during higher than paper pulp liquid level in paper pulp diluting tank, waste water is flowed into waste water transfer member 1 and is entered total wastewater collection pond by described outlet 8, the outlet 8 of described moulding wastewater disposal basin is positioned at the suitable height on its sidewall, can be by the wastewater flow rate of the volume of paper pulp diluting tank and required reuse be determined, described outlet 8 is positioned at the suitable height on sidewall, be conducive to stablize the diluted concentration of paper pulp and the quality of stable paper.
Screening wastewater disposal basin is provided with the second wastewater outlet, and by conveyance conduit 5 by screening wastewater disposal basin part waste water direct reuse in pulper, when screening wastewater disposal basin elevation of bottom higher than pulper, by conveyance conduit 5, make waste water in pond become from stream mode to be back to pulper with sediment, when screening wastewater disposal basin elevation of bottom lower than pulper, can adopt pump and by conveyance conduit 5, waste water in pond and sediment be sent into pulper.
Be provided with the second waste water recycling pump 6, use the second waste water recycling pump 6 and with this pump water end (W.E.) is connected return pipe 6a by the part waste water direct reuse that squeezes wastewater disposal basin in the cleaning of felt 2.
Fig. 4 is the facade structures schematic diagram at squeezing wastewater disposal basin position, the schematic construction of simultaneously having shown woollen blanket cleaning element 9, woollen blanket cleaning element 9 is connected with the water side of return pipe 6a, " U " shape structure that described woollen blanket cleaning element 9 is horizontal upper lower transverse tubule, felt 2 is cleaned " U " shape structure that position is positioned at lower transverse tubule, and the upper lower transverse tubule of described " U " structure is provided with some water jets towards felt; Described woollen blanket cleaning element 9 is preferably placed at the top of squeezing wastewater disposal basin, and the one, can reduce the length of reuse water pipe 6a to shorten the path of waste water recycling, the 2nd, can make the cleaning waste water that cleans felt generation directly fall in squeezing wastewater disposal basin.
Be provided with new water and supplement water pipe 10, new water supplements water pipe 10 and is provided with control valve 10a, new water supplements water pipe 10 and is communicated with woollen blanket cleaning element 9, when needs are used new water cleaning felt maybe to need to supplement new water, opening controlling valve 10a, when the waste water of squeezing in wastewater disposal basin can meet while cleaning the requiring of felt, closed control valve 10a, and waste water in direct reuse squeezing wastewater disposal basin cleans.
Be provided with the aerator 4 acting in total wastewater collection pond, aerator 4 comprises gas generator 4a and is positioned at the aeration member 4b in total wastewater collection pond, aeration member 4b preferably adopts pipe, pipe is provided with some solarization air caps, gas generator 4a preferably adopts Roots blower, the layout of aeration member 4b and version have multiple, have shown a kind of version wherein in Fig. 2.
During using normal operation of the present invention, waste water is in normal flow regime, and according to the principle of " Running water never becomes putrid ", waste water is not easy to produce different gas, if desired can spray deodorant.When the long period (more than two days or three days) is stagnated in operation, should be to spray deodorant in total wastewater collection pond, and aeration, simultaneously to spray deodorant in other wastewater disposal basin, deodorant can adopt existing deodorant, also can adopt air freshener with 70% disinfectant and 30% after highly evenly, in the ratio of 1:300, add new water, in wastewater disposal basin, spray.
The described embodiment of description of the present invention and any mode of texturing on technical solution of the present invention basis all belong to protection scope of the present invention.
Claims (8)
1. waste paper or a sole plales paper making wastewater zero discharge reuse technology, is characterized in that:
Be provided with total wastewater collection pond and waste water transfer member (1);
The screening waste water that pulp sifting produces, enters total wastewater collection pond by waste water transfer member (1);
The moulding waste water that sheet forming produces, enters total wastewater collection pond by waste water transfer member (1);
The squeezing waste water that page squeezing produces, enters total wastewater collection pond by waste water transfer member (1);
The cleaning waste water that cleans felt 2 generations enters total wastewater collection pond by transfer member (1);
The pulping waste water that pulper produces, enters total wastewater collection pond by waste water transfer member (1);
Be provided with the first waste water recycling pump (3), use the first waste water recycling pump (3) and with this pump reuse pipeline (3a) that water end (W.E.) is connected by the waste water direct reuse in total wastewater collection pond in pulper.
2. a kind of waste paper according to claim 1 or sole plales paper making wastewater zero discharge reuse technology, is characterized in that:
Be provided with moulding wastewater disposal basin, the moulding waste water that sheet forming produces is through moulding wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member (1);
Be provided with screening wastewater disposal basin, the screening waste water that pulp sifting produces is through screening wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member (1);
Be provided with squeezing wastewater disposal basin, page squeezes the squeezing waste water of generation through squeezing wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member (1);
The cleaning waste water that cleans felt (2) enters squeezing wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member (1);
Be provided with pulping wastewater disposal basin, the pulping waste water that pulper produces is through pulping wastewater disposal basin, then enters total wastewater collection pond by described waste water transfer member (1).
3. a kind of waste paper according to claim 2 or sole plales paper making wastewater zero discharge reuse technology, it is characterized in that described moulding wastewater disposal basin is provided with the first wastewater outlet, the wastewater effluent mouth of moulding wastewater disposal basin communicates with paper pulp diluting tank, by the part waste water direct reuse of moulding wastewater disposal basin in the dilution of paper pulp, one lower sidewall of described moulding wastewater disposal basin is provided with described the first wastewater outlet (7), the first wastewater outlet (7) communicates with the bottom of paper pulp diluting tank, the top of another sidewall of moulding wastewater disposal basin is provided with can play to the paper pulp liquid level in paper pulp diluting tank the outlet (8) of control action.
4. a kind of waste paper according to claim 3 or sole plales paper making wastewater zero discharge reuse technology, is characterized in that screening wastewater disposal basin and be provided with the second wastewater outlet, and by conveyance conduit (5) by screening wastewater disposal basin part waste water direct reuse in pulper.
5. a kind of waste paper according to claim 4 or sole plales paper making wastewater zero discharge reuse technology, it is characterized in that being provided with the second waste water recycling pump (6), use the second waste water recycling pump (6) and with this pump water end (W.E.) is connected return pipe (6a) by the part waste water direct reuse that squeezes wastewater disposal basin in the cleaning of felt (2).
6. according to right, want a kind of waste paper or the sole plales paper making wastewater zero discharge reuse technology described in 5, it is characterized in that being provided with woollen blanket cleaning element (9), woollen blanket cleaning element (9) is connected with the water side of described return pipe (6a), " U " shape structure that woollen blanket cleaning element (9) is horizontal upper lower transverse tubule, felt (2) is cleaned " U " shape structure that position is positioned at lower transverse tubule, the upper lower transverse tubule of " U " structure is provided with some water jets towards felt, and described woollen blanket cleaning element (9) is positioned at the top of squeezing wastewater disposal basin.
7. a kind of waste paper according to claim 6 or sole plales paper making wastewater zero discharge reuse technology, it is characterized in that being provided with new water and supplement water pipe (10), new water supplements water pipe (10) and is provided with control valve (10a), and new water supplements water pipe (10) and is communicated with woollen blanket cleaning element (9).
8. according to any waste paper of claim 1-7 or sole plales paper making wastewater zero discharge reuse technology, it is characterized in that being provided with the aerator (4) acting in total wastewater collection pond, aerator is in service, sediment in total wastewater collection pond is suspended, aerator (4) comprises gas generator (4a) and is positioned at the aeration member (4b) in total wastewater collection pond, and aeration member (4b) is provided with some solarization air caps.
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| CN201310030261.3A CN103088689B (en) | 2013-01-28 | 2013-01-28 | Zero discharging and recycling technology for waste paper or raw stock board papermaking wastewater |
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| CN201310030261.3A CN103088689B (en) | 2013-01-28 | 2013-01-28 | Zero discharging and recycling technology for waste paper or raw stock board papermaking wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480765A (en) * | 2014-12-11 | 2015-04-01 | 钟立福 | Zero-emission reusing device for paper-making wastewater for fireworks paper |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109423905A (en) * | 2017-08-30 | 2019-03-05 | 黑龙江如柏科技有限公司 | A kind of paper pulp production line system of no discharging of waste liquid |
| CN116446207B (en) * | 2023-05-11 | 2024-02-09 | 山东丰源中科造纸有限公司 | Production device for odorless corrugated paper |
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