CN204022626U - Paper waste recycling treatment system - Google Patents
Paper waste recycling treatment system Download PDFInfo
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- CN204022626U CN204022626U CN201420458312.2U CN201420458312U CN204022626U CN 204022626 U CN204022626 U CN 204022626U CN 201420458312 U CN201420458312 U CN 201420458312U CN 204022626 U CN204022626 U CN 204022626U
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Abstract
The utility model discloses a kind of paper waste recycling treatment system, comprise the apparatus for physical Chemical treating, biochemical treatment apparatus, the advanced treatment apparatus that are connected in turn by pipeline.The utility model achieves the function of waste water stage treatment, grading recycle, sludge treatment, gas cleaning integration, and this system architecture is simple, and process is easy to control, and operational safety is easy to maintenance.The utility model is applicable to the process of paper waste, mud.
Description
Technical field
The utility model belongs to paper industry offal treatment and application technology as the second resource, relates to a kind of paper industry changing rejected material to useful resource treatment system, specifically a kind of paper waste recycling treatment system.
Background technology
Pulping and paper-making is one of important industry of Chinese national economy, the cardboard that current China produces and paper output leap to the first in the world, but, papermaking is also a high pollution industry, major cause to produce a large amount of waste water, waste residue mud in paper-making process, and these have become the main environment protection treating object of China's paper industry.
Paper waste is mainly derived from slip house and workshop of manufacturing paper with pulp, and also containing waste residue mud in these waste water, these waste residue mud are mainly containing fiber fines, xylogen and derivative thereof and some organism.The process of current domestic paper waste is conceived to component loops more and process water water quality reaching standard is discharged, result is that the Effects of Water Quality of wastewater discharge and the process water reduced is unsatisfactory, and the direct landfill of mud after wastewater treatment and burning, landfill needs to take a large amount of soils, and can secondary pollution be caused, burn as just sewage sludge harmlessness, minimizing process, paper mill sludge is not recycled, and the flue gas directly burning generation also can direct contaminate environment.
In recent years, the closed circulation of paper waste and zero-discharge technology have become the important directions of paper waste technical study.Paper making wastewater zero discharge can reduce the consumption of fresh water, reduction water rate use, can also reduce the cost of discharge of wastewater and process simultaneously, the consumption of fresh water reduces, and the temperature of plain boiled water is improved, thus improves wet end drainability, improve the mass dryness fraction after squeezing, reduce energy consumption; In addition, mud concentrated after wastewater treatment contains fiber fines, xylogen and derivative thereof and some organism etc. because of it, and combustion-supporting effect is good, if burnt, heat after burning is made full use of, and the problem solving smoke pollution is also one of aim in recycling economy.
Paper waste closed circulation and zero release mainly refer to waste water reuse after treatment, the filter screen that the waste water of reuse can be used in purge flow slurry process, felt, the equipment of manufacturing paper with pulp, workshop, also can be used as the solvent in pulping process, the waste water of these reuses can select the water quality of different standards according to purposes, as required lower to aqueous solvent confrontation in pulping process, can by direct reuse after paper waste simple process, and the requirement of the cleaning of machine room filter screen and felt to water quality is higher, need the water quality of the standard that reaches just totally flushable, just do not affect the quality of page, the process of the wastewater treatment of this part is longer, intractability is also larger.At present, common paper waste recycle is only by after disposable for waste water process, carry out reuse, not by waste water stage treatment, grading recycle, the standard of reuse water like this is all identical, not only increases the requirement to sewage treatment equipment, and treatment cycle is longer, treatment capacity is large, drops into high, and process is not easy to control, indirectly cause energy dissipation, improve production cost.In addition, while realizing zero release, recycling economy, also there are some other shortcomings, as the corrosion of system, can there is acidifying anaerobism and produce compound odorous in plain boiled water, the precipitation of generation easily causes the problems such as operation troubles in the circulating cycle.Therefore, how to overcome produced problem in the closed circulation of paper waste and zero-discharge technology and become study hotspot in recent years.
Utility model content
The technical problems to be solved in the utility model, be to provide a kind of paper waste recycling treatment system, achieve the function of waste water stage treatment, grading recycle, this system architecture is simple, overcome system corrosion, produce the problems such as smell, operating safety, process is easy to control, operational safety, is easy to maintenance;
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of paper waste recycling treatment system, comprises the apparatus for physical Chemical treating, biochemical treatment apparatus, the advanced treatment apparatus that are connected in turn by pipeline;
Described biochemical treatment apparatus is also connected by pipeline with secondary reuse water treatment unit, and described apparatus for physical Chemical treating, biochemical treatment apparatus, secondary reuse water treatment unit, advanced treatment apparatus are connected by pipeline with the first pump, the second pump, the 3rd pump, the 4th pump respectively; The first described pump ~ the 4th pump is connected with sludge treatment equipment respectively by pipeline, and described sludge treatment equipment is connected with flue gas processing device by pipeline.
As restriction of the present utility model:
Described apparatus for physical Chemical treating comprises the grid, Microfilter, the first reaction tank, the first settling tank that are connected in turn by pipeline;
Described biochemical treatment apparatus comprise be connected in turn by pipeline pre-acidified pond, anaerobic reation pool, aerobic reaction pond, the second settling tank;
Described secondary reuse water treatment unit comprises the second reaction tank, the 3rd settling tank, the first sand filter that are connected in turn by pipeline;
Described advanced treatment apparatus comprise be connected in turn by pipeline equalizing tank, Fenton's reaction pond, the 3rd reaction tank, the 4th settling tank, the second sand filter;
Described sludge treatment equipment comprises the sludge thickener, baking room, tablets press, the boiler that are connected in turn by pipeline;
Described flue gas processing device comprises the fly-ash separator, the desulphurization denitration tower that are connected in turn by pipeline;
The first described settling tank is connected with the first pump by pipeline;
The second described settling tank is connected with the second pump by pipeline;
The 3rd described settling tank is connected with the 3rd pump by pipeline;
The 4th described settling tank is connected with the 4th pump by pipeline.
The utility model also has a kind of restriction, and the high-temperature flue gas that boiler combustion produces is connected with pipeline one end in baking room by pipeline, and in baking room, the pipeline the other end is connected by pipeline with fly-ash separator.
Owing to have employed above-mentioned technical scheme, compared with prior art, acquired technical progress is the utility model:
A kind of paper waste recycling treatment system provided by the utility model, has the following advantages:
1. the function of waste water stage treatment, grading recycle is achieved, low to the power demand of system, save the energy, improve the efficiency of wastewater treatment, shorten treatment cycle, reduce running cost;
2. this system architecture is simple, overcomes system corrosion, produces the problems such as smell, operating safety, and process is easy to control, operational safety, is easy to maintenance;
3. this system achieves the function of paper making wastewater zero discharge, sludge zero discharge, and is processed by the flue gas that sludge incineration produces, and really achieves recycling economy and eco-friendly object;
The utility model is applicable to the process of paper waste, mud.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
In figure: A-apparatus for physical Chemical treating, B-biochemical treatment apparatus, C-secondary reuse water treatment unit, D-advanced treatment apparatus, E-sludge treatment equipment, F-flue gas processing device.
The utility model is described in further detail below in conjunction with specific embodiment.
Embodiment
embodiment 1 one kinds of paper waste recycling treatment systems
As shown in Figure 1, paper waste recycling treatment system comprises the apparatus for physical Chemical treating A be connected in turn by pipeline, biochemical treatment apparatus B, advanced treatment apparatus D, biochemical treatment apparatus B is also connected by pipeline with secondary reuse water treatment unit C, apparatus for physical Chemical treating A, biochemical treatment apparatus B, secondary reuse water treatment unit C, advanced treatment apparatus D respectively with the first pump, second pump, 3rd pump, 4th pump is connected by pipeline, first pump, second pump, 3rd pump, 4th pump is connected with sludge treatment equipment E respectively by pipeline, first pump ~ the 4th pump is submersible sewage pump, sludge treatment equipment E is connected with flue gas processing device F by pipeline.
Apparatus for physical Chemical treating A comprises the grid, Microfilter, the first reaction tank, the first settling tank that are connected in turn by pipeline; Biochemical treatment apparatus B comprise be connected in turn by pipeline pre-acidified pond, anaerobic reation pool, aerobic reaction pond, the second settling tank; Secondary reuse water treatment unit C comprises the second reaction tank, the 3rd settling tank, the first sand filter that are connected in turn by pipeline; Advanced treatment apparatus D comprise be connected in turn by pipeline equalizing tank, Fenton's reaction pond, the 3rd reaction tank, the 4th settling tank, the second sand filter; Sludge treatment equipment E comprises the sludge thickener, baking room, tablets press, the boiler that are connected in turn by pipeline; Flue gas processing device F comprises the fly-ash separator, the desulphurization denitration tower that are connected in turn by pipeline; First settling tank is connected with the first pump, pre-acidified pond respectively by pipeline; Second settling tank is connected with the second pump, the second reaction tank, equalizing tank respectively by pipeline, in order to strengthen the treatment effect of the waste water in the first settling tank and aerobic reaction tank, need regularly in the first settling tank and aerobic reaction tank, to supplement mud, in order to actual needs, the second settling tank is connected by pipeline with aerobic reaction tank with the first settling tank respectively; 3rd settling tank is connected with the 3rd pump by pipeline; 4th settling tank is connected with the 4th pump by pipeline;
Certainly, in order to classification use water is convenient, native system also can be provided with one-level reuse pool, secondary reuse pool, pond up to standard, first settling tank is connected with one-level reuse pool by pipeline, first sand filter is connected with secondary reuse pool by pipeline, and the second sand filter is connected with pond up to standard by pipeline.
In order to save energy, burn in boiler produce flue-gas temperature higher, boiler can be connected with pipeline in baking room by pipeline, some pipelines communicated are provided with in order to dry mud in baking room, mud in baking room is heated by ducted high-temperature flue gas, flue gas after circulation is discharged by pipeline, and in baking room, pipeline is connected by pipeline with fly-ash separator.
Concrete principle of work is as follows:
Waste water in paper mill enters in grid, and grid retains suspended matter and foreign material, in order to avoid blocking pipeline and equipment, water outlet flows in Microfilter, Microfilter can adopt existing product, removes the suspended matter in waste water, flows in reaction tank after water outlet, by add flocculation agent in pond after, material in waste water and flocculation agent generation flocculation reaction, water outlet enters in the first settling tank, by the adsorption of partial sludge in the first settling tank, adsorb the SS of sewage in the first settling tank, reduce COD
cr, form larger floss, sedimentation under gravity, upper strata is the water after process, lower floor is mud, top section water flows into one-level reuse pool, water in one-level reuse pool is in order to paper-making pulping water, the mud of lower floor is pumped in sludge thickener by the first pump, the remaining water in upper strata enters in pre-acidified pond, according to actual needs, nutritive salt can be added in pre-acidified pond, object cultivates dietetic bacterial, improve biochemical reaction speed, after regulating pH value, water outlet enters anaerobic reation pool, anaerobic reactor is had in anaerobic reation pool, it can be existing product, under the effect of anerobe, organism in water of decomposition, the larger molecular organics of difficult degradation in water is decomposed into small organic molecule, water outlet enters in aerobic reaction pond, aerobic reaction has aerobic reactor in pond, for existing product, aerobic reaction pond is by the absorption of aerobic microbiological, oxidation, Degradation is except most organic pollutant in anhydrating, the SS of sludge absorption sewage in aerobic reaction pond, reduce COD
crform short grained floss, water outlet enters in the second settling tank, particulate matter sedimentation in the second settling tank of floss and sludge absorption under gravity, layering, water part enters in the second reaction tank, the water of remainder enters in equalizing tank, partial sludge in second settling tank flow in aerobic reaction pond and the first settling tank by back of pipeline, the mud of backflow can adsorb particulate matter in the second settling tank and aerobic reaction tank and flock, and remaining mud is pumped in sludge thickener by the second pump.
By adding flocculation agent in second reaction tank, particulate matter in water is flocculated, and water outlet enters in the 3rd settling tank, precipitates under gravity, after muddy water layering, mud is pumped in sludge thickener by the 3rd pump, and water outlet enters in sand filter, and sand filter is existing product, what utilize sand filter efficiently retains filteration, remove the SS in sewage, water outlet enters in secondary reuse pool, and secondary reuse water may be used for machine room dilution slurries.
The PH of water in equalizing tank is adjusted to acidity, and water outlet enters in Fenton's reaction pond, under the effect of fenton reagent, is CO by final for the organic pollutant in waste water mineralising
2, H
2the small-molecule substance such as O and inorganic salt, water outlet enters in the 3rd reaction tank, add the particulate matter in absorption effluent after flocculation agent, form floss, water outlet enters in the 4th settling tank, precipitate under gravity, muddy water layering, mud is pumped in sludge thickener by the 4th pump, and water outlet enters in the second sand filter, and sand filter is existing product, what utilize sand filter efficiently retains filteration, SS in further removal sewage, water outlet enters in pond up to standard, and water up to standard can be used for cleaning the felt of machine room and net.
Mud employing mechanical dewatering equipment in sludge thickener can by sludge condensation, and mechanical dewatering equipment can adopt the common sludge dehydration equipment of existing market, as spiral dehydration equipment.
Mud after concentrated enters in baking room, and utilize the heat of high-temperature flue gas release in baking room pipeline to be dried by mud, the mud after oven dry enters granulation in tablets press, and tablets press can adopt the common tablets press of existing market, as kiln formula tablets press.
Mud granule after granulation enters in boiler and burns, also blending can burn together with coal according to actual needs, the heat that burning produces can heat, also heat can be provided for needing in paper the place of heat supply, a high-temperature flue gas part after burning enters in fly-ash separator, a part enters in the pipeline of baking room in addition, in order to dry mud, flue gas in baking room pipeline to be covered in baking room after tube side, temperature reduces, flue gas enters in fly-ash separator, fly-ash separator can be sack cleaner, also can be electric precipitator, also can both be combined, no matter be that sack cleaner or electric precipitator all can adopt existing product.
Flue gas after dedusting enters desulphurization denitration tower, utilizes ammonia process, carries out desulphurization and denitration to flue gas, the flue gas qualified discharge after process.
The paper waste recycling treatment system that the present embodiment provides achieves waste water stage treatment, grading recycle, sludge treatment, fume treatment integrated function, this system architecture is simple, processing efficiency is high, operating load is little, overcome system corrosion, produce the problems such as smell, operating safety, process is easy to control, operational safety, is easy to maintenance.
Embodiment 1, it is only preferred embodiment of the present utility model, be not the restriction to other form that the utility model is done, any those skilled in the art may utilize above-mentioned technology contents to be changed or be modified as the Equivalent embodiments of equivalent variations as enlightenment.In every case be the technical spirit not departing from the utility model claim, to simple modification, equivalent variations and remodeling done by above embodiment, still belong to the scope of the utility model claim protection.
Claims (3)
1. a paper waste recycling treatment system,
it is characterized in that:comprise the apparatus for physical Chemical treating, biochemical treatment apparatus, the advanced treatment apparatus that are connected in turn by pipeline;
Described biochemical treatment apparatus is also connected by pipeline with secondary reuse water treatment unit, and described apparatus for physical Chemical treating, biochemical treatment apparatus, secondary reuse water treatment unit, advanced treatment apparatus are connected by pipeline with the first pump, the second pump, the 3rd pump, the 4th pump respectively; The first described pump ~ the 4th pump is connected with sludge treatment equipment respectively by pipeline, and described sludge treatment equipment is connected with flue gas processing device by pipeline.
2. paper waste recycling treatment system according to claim 1,
it is characterized in that:
Described apparatus for physical Chemical treating comprises the grid, Microfilter, the first reaction tank, the first settling tank that are connected in turn by pipeline;
Described biochemical treatment apparatus comprise be connected in turn by pipeline pre-acidified pond, anaerobic reation pool, aerobic reaction pond, the second settling tank;
Described secondary reuse water treatment unit comprises the second reaction tank, the 3rd settling tank, the first sand filter that are connected in turn by pipeline;
Described advanced treatment apparatus comprise be connected in turn by pipeline equalizing tank, Fenton's reaction pond, the 3rd reaction tank, the 4th settling tank, the second sand filter;
Described sludge treatment equipment comprises the sludge thickener, baking room, tablets press, the boiler that are connected in turn by pipeline;
Described flue gas processing device comprises the fly-ash separator, the desulphurization denitration tower that are connected in turn by pipeline;
The first described settling tank is connected with the first pump by pipeline;
The second described settling tank is connected with the second pump by pipeline;
The 3rd described settling tank is connected with the 3rd pump by pipeline;
The 4th described settling tank is connected with the 4th pump by pipeline.
3. paper waste recycling treatment system according to claim 2,
it is characterized in that:the high-temperature flue gas that boiler combustion produces is connected with pipeline one end in baking room by pipeline, and in baking room, the pipeline the other end is connected by pipeline with fly-ash separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420458312.2U CN204022626U (en) | 2014-08-14 | 2014-08-14 | Paper waste recycling treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420458312.2U CN204022626U (en) | 2014-08-14 | 2014-08-14 | Paper waste recycling treatment system |
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| Publication Number | Publication Date |
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| CN204022626U true CN204022626U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420458312.2U Withdrawn - After Issue CN204022626U (en) | 2014-08-14 | 2014-08-14 | Paper waste recycling treatment system |
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| CN (1) | CN204022626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176883A (en) * | 2014-08-14 | 2014-12-03 | 唐山市天正实业有限公司 | Papermaking wastewater resourceful treatment system and corresponding process |
| CN114105356A (en) * | 2021-11-18 | 2022-03-01 | 中国轻工业长沙工程有限公司 | Deep treatment process for papermaking by using waste paper |
-
2014
- 2014-08-14 CN CN201420458312.2U patent/CN204022626U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176883A (en) * | 2014-08-14 | 2014-12-03 | 唐山市天正实业有限公司 | Papermaking wastewater resourceful treatment system and corresponding process |
| CN114105356A (en) * | 2021-11-18 | 2022-03-01 | 中国轻工业长沙工程有限公司 | Deep treatment process for papermaking by using waste paper |
| CN114105356B (en) * | 2021-11-18 | 2024-02-06 | 中国轻工业长沙工程有限公司 | Advanced treatment process for waste paper making |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |