CN102852020A - Integrated combination device for physicochemical treatment of black liquid - Google Patents
Integrated combination device for physicochemical treatment of black liquid Download PDFInfo
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- CN102852020A CN102852020A CN2011101766620A CN201110176662A CN102852020A CN 102852020 A CN102852020 A CN 102852020A CN 2011101766620 A CN2011101766620 A CN 2011101766620A CN 201110176662 A CN201110176662 A CN 201110176662A CN 102852020 A CN102852020 A CN 102852020A
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Abstract
The invention discloses a combination device for physicochemical treatment of black liquid. The combination device comprises chemical storage tanks, chemical feed tanks, an oxygenolysis bin, a coagulation polycondensation bin, a dehydration separator bin, a turning slag extractor bin and a clear water recycle bin all integrated. The oxygenolysis bin is connected with the coagulation polycondensation bin, a set of chemical storage tank and chemical feed tank are arranged at upper part, the oxygenolysis bin and coagulation polycondensation bin are be provided with a separating plates, with the lower parts being communicated, each bin is divided into two chambers, each chamber is provided with a set of stirring device, and the liquid is fed and discharged at the upper part. The coagulation polycondensation bin is connected with the dehydration separator bin, which is provided with a micro-filtering dehydrator at the upper part and with a water tank water pipe communicating with the clear water recycle bin at the lower part, the upper dehydrator communicates with the turning slag extractor bin, which is provided with a moving board for sludge discharge and connected with the clear water recycle bin, and a clear water bin is provided with a sloped tube sediment layer for sedimentation to obtain clear water and discharge into a water storage tank. The combination device adopts a black liquid lifting pump and chemical liquid, to rapidly decompose nano-lignin and perform polycondensation to obtain bulk-shaped solid substance with no viscosity, high dehydration speed and efficiency, chemical oxygen consumption removal up to 95% and chroma removal up to 98%. The combination device has reasonable design, high device integration level, small floor area, energy saving and environment friendliness, and can be matched with alkali recovery process to trap diluted black liquid for physicochemical treatment, and realize zero discharge of black liquid.
Description
Technical field
The present invention relates to a kind of water treatment facilities, specifically a kind of black liquid materialization treatment facility refers in particular to the black liquid treatment facility.
Background technology
For a long time, people have varied to the treatment technology of black liquid, obtained huge environmental benefit and social benefit.Existing physico-chemical process equipment for treating black liquor adopts black liquor usually after peroxidization makes lignin mud come-up, with cleaning shoe mud is entered slag runner, the moisture percentage in sewage sludge of existing equipment output is very high, and the raffinate of black liquor after peroxidating is acid, need to process through the neutralization decolouring, the medicine consumption is large, effluent characteristics is poor, operational efficiency is low again.The tradition acid extracting lignin process is also because of lignin sludge dewatering separation difficulty, and operational efficiency is low, and the user is difficult to receive.
At present, the black liquor processing method that the most generally adopts is: take " recovery of firing method alkali " technique as main, this also is the trend that forms under the macro adjustment and control policy of China to the papermaking industry, adopt " recovery of firing method alkali " technique to be particularly useful for the alkali recycling of wood pulp papermaking black liquor, and the alkali of wheat straw pulp paper-making black liquor is recycled, then because silicon content is high in the wheat straw black liquor, viscosity is large, it is low to cause extracting separately the high concentration black liquor recovery rate, residual black needs to extract through thin up again in the slurry, therefore, the rare black liquor of the large volume low-concentration of output can't alkali recycling and enter middle section water, thereby increased middle section water difficulty of governance up to standard and control investment.
Summary of the invention
For the problems referred to above, the present invention aims to provide that floor space is few, operational efficiency is high, applied widely, treatment effect good, output mud block large, without viscosity, separate well, the black liquor materialization of easily dehydration processes integrated combination equipment.
Technical scheme of the present invention is: integrated combination equipment is processed in a kind of black liquor materialization, comprise the oxidation Decomposition storehouse (1) that is connected as a single entity, coagulation polycondensation storehouse (2), dehydration separates cabin (3), turn to deslagging cabin (7) and clear water reuse storehouse (5), it is characterized in that: described oxidation Decomposition storehouse (1) inner top and coagulation polycondensation storehouse (2) inner top arrange respectively dividing plate (19) and dividing plate (20) vertically downward, described dividing plate and oxidation Decomposition storehouse (1) inner bottom part and coagulation polycondensation storehouse (2) inner bottom part leave certain distance, oxidation Decomposition storehouse and coagulation polycondensation storehouse are divided into respectively two Room, above-mentioned every chamber is run through the top one mixer (10) is installed, back, described coagulation polycondensation storehouse (2) connects dehydration and separates cabin (3), connection turned to deslagging storehouse (7) after described dehydration separated cabin (3), described turning to arranges movable plate (8) in the deslagging storehouse (7), the described deslagging storehouse (7) that turns to connects clear water reuse storehouse (5) near the bottom, described dehydration separates the micro-filtration wringer roll cage (9) that cabin (3) inner and upper is equipped with horizontal positioned, described dehydration separates under the cabin (3) water storage tank, water service pipe (6) and clear water reuse storehouse (5) are arranged to being communicated with in the described water storage tank, described deslagging cabin (7) top that turns to is connected also close movable plate with micro-filtration wringer roll cage (9) one ends, described micro-filtration wringer roll cage (9) other end is connected with coagulation polycondensation storehouse.
(1) the one upper lateral part perforate of described oxidation Decomposition storehouse connects black liquor elevator pump (21) by pipeline.
The dividing plate upper end arranges through hole between described oxidation Decomposition storehouse (1) and the coagulation polycondensation storehouse (2).
The dividing plate upper end arranges through hole between described coagulation polycondensation storehouse (2) and the dehydration separation cabin (3).Top, described oxidation Decomposition storehouse (1) is upwards installed successively the first grug feeding jar (13) and first and is deposited medicinal cupping (14).
Top, described coagulation polycondensation storehouse (2) is upwards installed successively the second grug feeding jar (11) and second and is deposited medicinal cupping (12).
Also comprise black liquor acidification pool (15), acidifying bacterium filler is housed in the black liquor acidification pool.
Also comprise sludge drying machine (16) and sludge paper board machine (18), sludge drying machine is connected with sludge paper board machine and is connected, and sludge drying machine is connected with turning to deslagging storehouse (7).
Comprise that also the reuse clear water deposits pond (17), the reuse clear water is deposited pond (17) and is arranged on next door, clear water reuse storehouse (5), and is communicated with clear water reuse storehouse (5).
Be provided with tube settling layer (4) in the described clear water reuse storehouse (5).
The beneficial effect of integrated combination equipment is processed in black liquor materialization of the present invention: integrated combination equipment is processed in the black liquor materialization, described oxidation Decomposition storehouse (1) inner top and coagulation polycondensation storehouse (2) inner top arrange respectively dividing plate (19) and dividing plate (20) vertically downward, described dividing plate and oxidation Decomposition storehouse (1) inner bottom part and coagulation polycondensation storehouse (2) inner bottom part leave certain distance, oxidation Decomposition storehouse and coagulation polycondensation storehouse are divided into respectively two Room, above-mentioned every chamber is run through the top one mixer (10) is installed, back, described coagulation polycondensation storehouse (2) connects dehydration and separates cabin (3), connection turned to deslagging storehouse (7) after described dehydration separated cabin (3), described turning to arranges movable plate (8) in the deslagging storehouse (7), the described deslagging storehouse (7) that turns to connects clear water reuse storehouse (5) near the bottom, what described dehydration separated that cabin (3) inner and upper is equipped with horizontal positioned rolls cage micro-filtration Water Extraction Machinery (9), described dehydration separates under the cabin (3) water storage tank, water service pipe (6) and clear water reuse storehouse (5) are arranged to being communicated with in the described water storage tank, described deslagging cabin (7) top that turns to is connected also close movable plate with micro-filtration wringer roll cage (9) one ends, described wringer roll cage (9) other end is connected (8) with coagulation polycondensation storehouse.Therefore this apparatus adaptability is strong, and it not only adapts to black liquor (dense) chemical oxygen consumption (COC) up to more than 100,000, and (rare) chemical oxygen consumption (COC) is low to moderate 10,000 to be processed with interior black liquor, and the chemical oxygen consumption (COC) clearance is up to 95%, and chroma removal rate is up to 98%.It only is 40% of identical black liquor treating capacity alkali recovery process gross investment that the gross investment of integrated combination equipment is processed in the materialization of this black liquor.
Therefore, the invention provides a kind of black liquid materialization and process integrated combination equipment, its floor space is few, operational efficiency is high, applied widely, treatment effect good, output mud block large, without viscosity, separate well, easily dehydration, discharge that clear water is neutral, can does making beating, the pulping water, also can mix middle section water processing qualified discharge.In addition, the lignin mud after black liquor is processed can reproduce cardboard or do the fuel reproduction utilization by the papermaking sludge paperboard machine.
Description of drawings
Fig. 1 is structural profile schematic diagram of the present invention.
The specific embodiment
Below in conjunction with Figure of description integrated combination equipment being processed in black liquor materialization of the present invention is described further.
As shown in Figure 1, enter black liquor acidification pool 15 acidification by the black liquor of accompanying drawing flow process paper-making pulping workshop section output, make the different black liquor mixing homogeneous of high-concentration and low-concentration, its residual alkali and chemical oxygen consumption (COC) are tentatively degraded, reduce operating cost.Acidified processing, be promoted to oxidation Decomposition storehouse 1 by black liquor elevator pump 21, simultaneously, set up storage medicine filling 14 and the metering on 1 top, oxidation Decomposition storehouse and fill with 13 with oxidation Decomposition liquid medicine quantitative adding oxidation Decomposition storehouse 1, be provided with dividing plate 19 and dividing plate in the oxidation Decomposition storehouse 1 and oxidation Decomposition storehouse 1 inner bottom part leaves certain distance, the oxidation Decomposition storehouse is divided into the first decomposition chamber A and the second decomposition chamber B, black liquor is entered by the first decomposition chamber A top section first, flowed out from top through the second decomposition chamber B by following, again under the stirring of infinitely variable speeds mixer 10, first through the first decomposition chamber A oxidation Decomposition, after entering again the second decomposition chamber B oxidation Decomposition, flow to coagulation polycondensation storehouse 2 by the second decomposition chamber B top, the storage medicine that is erected at simultaneously 2 tops, coagulation polycondensation storehouse fill with 12 and metering fill with 11 the coagulation polycondensation agent quantitatively added coagulation polycondensation storehouse 2, coagulation polycondensation storehouse 2 is provided with equally dividing plate 20 and partition plate coagulation polycondensation storehouse 2 inner bottom parts leave certain distance, one storehouse is divided into the first polycondensation chamber C and the second polycondensation chamber D, decomposed solution and coagulation polycondensation agent are mixed into coagulation polycondensation storehouse 2 and at coagulation polycondensation storehouse the first polycondensation chamber C and the second polycondensation chamber D, carry out the coagulation polycondensation reaction under mixer 10 stirrings after the oxidized decomposition.When black liquor through peroxidization, enter again coagulation polycondensation storehouse 2 after decomposing the solid thing of cashier's lignin particle.Under the effect of coagulation polycondensation agent, become large block solid thing through stirring coagulating by rapid polycondensation, and entered by C top, the first polycondensation chamber in the coagulation polycondensation storehouse 2, separate cabin 3 by following through flowing into dehydration by top again after the second polycondensation chamber D polycondensation reaction, dehydration separates cabin 3 and is provided with micro-filtration wringer roll cage 9, micro-filtration wringer roll verdant 9 bottoms are water storage tanks, and the water storage tank bottom has water service pipe 6 directly to be communicated with clear water reuse storehouse 5.Black liquor after the coagulation polycondensation separates cabin 3 dehydrations through dehydration again and separates, and clear water separates cabin 3 accumulating at lower part tank water inlet pipes 6 by dehydration and flows into clear water reuse storehouse 5.Through micro-filtration wringer roll cage 9 isolated mud, promoted mud entered by micro-filtration wringer roll cage 9 inside spins and turn to the cabin 7 of slagging tap, turn to the cabin 7 of slagging tap to be provided with mud movable plate 8 and directly mud effluxed sludge drying machine 16, the mud after dehydration separates again through the drying and other treatment of sludge drying machine 16 by sludge paper board machine 18 Reclaimed board commodity sellings.Black liquor is through the isolated clear water of dehydration seperator, separating cabin 3 water storage tank bottom water service pipes 6 by dehydration passes and turns to 8 bottoms, deslagging storehouse to import clear water reuse storehouse 5, clear water reuse storehouse 5 is provided with tube settling layer 4, after process tube settling layer 4 precipitation purify again through the clear water after the materialization processing, flow into clear water reuse storage pond 17 by 5 tops, clear water reuse storehouse, for the workshop reuse.
In the practice, the materialization of this black liquor is processed integrated combination equipment when using operation, only needs a black liquor elevator pump that black liquor acidification pool acidifying black liquor is risen in the black liquor oxidation decomposition bin.Calculate corresponding dosing variable according to optimal addition dosage in black liquor chemical oxygen consumption (COC) concentration and the lab scale, quantitatively add by this equipment metering filling again.In running, operating personnel should enter flow (the elevator pump inlet port should be provided with return duct) according to oxidation Decomposition phenomenon and coagulation polycondensation situation adjustment black liquor, and chemical feeding quantity and speed of agitator coincide mutually to materialization processing optimum state.
In addition, this equipment also can be supporting with alkali recovery process, hold back can't alkali rare black liquor of recycling carry out rare black liquor and enter middle section water materialized pretreatment in early stage, realize the output black liquor zero-emission of paper-making pulping workshop section, make the production of environment-friendly type cleaning pulping.
The above; it only is preferred embodiment of the present invention; not in order to limiting the present invention, any trickle modification that every foundation technical spirit of the present invention is done above embodiment, be equal to and replace and improve, all should be included within the protection domain of technical solution of the present invention.
Claims (10)
1. integrated combination equipment is processed in a black liquor materialization, comprise the oxidation Decomposition storehouse (1) that is connected as a single entity, coagulation polycondensation storehouse (2), dehydration separates cabin (3), turn to deslagging cabin (7) and clear water reuse storehouse (5), it is characterized in that: described oxidation Decomposition storehouse (1) inner top and coagulation polycondensation storehouse (2) inner top arrange respectively dividing plate (19) and dividing plate (20) vertically downward, described dividing plate and oxidation Decomposition storehouse (1) inner bottom part and coagulation polycondensation storehouse (2) inner bottom part leave certain distance, oxidation Decomposition storehouse and coagulation polycondensation storehouse are divided into respectively two Room, above-mentioned every chamber is run through the top one mixer (10) is installed, back, described coagulation polycondensation storehouse (2) connects dehydration and separates cabin (3), connection turned to deslagging storehouse (7) after described dehydration separated cabin (3), described turning to arranges movable plate (8) in the deslagging storehouse (7), the described deslagging storehouse (7) that turns to connects clear water reuse storehouse (5) near the bottom, described dehydration separates the micro-filtration wringer roll cage (9) that cabin (3) inner and upper is equipped with horizontal positioned, described dehydration separates under the cabin (3) water storage tank, water service pipe (6) and clear water reuse storehouse (5) are arranged to being communicated with in the described water storage tank, described deslagging cabin (7) top that turns to is connected with micro-filtration wringer roll cage (9) one ends, and described micro-filtration wringer roll cage (9) other end is near movable plate (8).
2. integrated combination equipment is processed in black liquor materialization according to claim 1, it is characterized in that: (1) the one upper lateral part perforate of described oxidation Decomposition storehouse connects black liquor elevator pump (21) by pipeline.
3. integrated combination equipment is processed in black liquor materialization according to claim 1, it is characterized in that: the dividing plate upper end arranges through hole between described oxidation Decomposition storehouse (1) and the coagulation polycondensation storehouse (2).
4. integrated combination equipment is processed in black liquor materialization according to claim 1, it is characterized in that: the dividing plate upper end arranges through hole between described coagulation polycondensation storehouse (2) and the dehydration separation cabin (3).
5. integrated combination equipment is processed in black liquor materialization according to claim 1, and it is characterized in that: top, described oxidation Decomposition storehouse (1) is upwards installed successively the first grug feeding jar (13) and first and deposited medicinal cupping (14).
6. integrated combination equipment is processed in black liquor materialization according to claim 1, and it is characterized in that: top, described coagulation polycondensation storehouse (2) is upwards installed successively the second grug feeding jar (11) and second and deposited medicinal cupping (12).
7. integrated combination equipment is processed in black liquor materialization according to claim 1, it is characterized in that: also comprise black liquor acidification pool (15), acidifying bacterium filler is housed in the black liquor acidification pool.
8. integrated combination equipment is processed in black liquor materialization according to claim 1, it is characterized in that: also comprise sludge drying machine (16) and sludge paper board machine (18), sludge drying machine is connected with sludge paper board machine and is connected, and sludge drying machine is connected with turning to deslagging storehouse (7).
9. integrated combination equipment is processed in black liquor materialization according to claim 1, it is characterized in that: comprise that also the reuse clear water deposits pond (17), the reuse clear water is deposited pond (17) and is arranged on next door, clear water reuse storehouse (5), and is communicated with clear water reuse storehouse (5).
10. integrated combination equipment is processed in black liquor materialization according to claim 1, it is characterized in that: be provided with tube settling layer (4) in the clear water reuse storehouse (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101766620A CN102852020A (en) | 2011-06-28 | 2011-06-28 | Integrated combination device for physicochemical treatment of black liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101766620A CN102852020A (en) | 2011-06-28 | 2011-06-28 | Integrated combination device for physicochemical treatment of black liquid |
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| CN102852020A true CN102852020A (en) | 2013-01-02 |
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| CN2011101766620A Pending CN102852020A (en) | 2011-06-28 | 2011-06-28 | Integrated combination device for physicochemical treatment of black liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673394A (en) * | 2016-12-30 | 2017-05-17 | 吴惠霞 | System and method for dewatering in slurry field |
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| JPS5771690A (en) * | 1980-10-22 | 1982-05-04 | Sanyo Kokusaku Pulp Co Ltd | Treating method for waste liquid of kraft pulp |
| CN101503254A (en) * | 2009-03-18 | 2009-08-12 | 南京工业大学 | Technique for treating aeration lagoon remained papermaking black liquor by oxidation-coagulation method |
| CN101708927A (en) * | 2009-12-03 | 2010-05-19 | 中冶纸业银河有限公司 | Method for deeply processing waste water from paper making |
| CN101767892A (en) * | 2008-12-26 | 2010-07-07 | 王永广 | Processing technique for residual papermaking black liquor |
| CN102020346A (en) * | 2010-12-19 | 2011-04-20 | 杭州（火炬）西斗门膜工业有限公司 | Efficient coagulating sedimentation basin |
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2011
- 2011-06-28 CN CN2011101766620A patent/CN102852020A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2620063A1 (en) * | 1975-07-21 | 1977-02-10 | Zink Co John | PROCEDURE FOR THE CONTINUOUS PROCESSING OF THE BLACK DEPOSIT CAUSED BY THE KRAFT OR SODA PROCEDURE |
| JPS5771690A (en) * | 1980-10-22 | 1982-05-04 | Sanyo Kokusaku Pulp Co Ltd | Treating method for waste liquid of kraft pulp |
| CN101767892A (en) * | 2008-12-26 | 2010-07-07 | 王永广 | Processing technique for residual papermaking black liquor |
| CN101503254A (en) * | 2009-03-18 | 2009-08-12 | 南京工业大学 | Technique for treating aeration lagoon remained papermaking black liquor by oxidation-coagulation method |
| CN101708927A (en) * | 2009-12-03 | 2010-05-19 | 中冶纸业银河有限公司 | Method for deeply processing waste water from paper making |
| CN102020346A (en) * | 2010-12-19 | 2011-04-20 | 杭州（火炬）西斗门膜工业有限公司 | Efficient coagulating sedimentation basin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673394A (en) * | 2016-12-30 | 2017-05-17 | 吴惠霞 | System and method for dewatering in slurry field |
| CN106673394B (en) * | 2016-12-30 | 2023-08-04 | 吴惠霞 | System and method for on-site dehydration of slurry |
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Application publication date: 20130102 |