CN105537238A - Dissolved air flotation machine of city and town domestic waste treatment system - Google Patents
Dissolved air flotation machine of city and town domestic waste treatment system Download PDFInfo
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- CN105537238A CN105537238A CN201511002665.7A CN201511002665A CN105537238A CN 105537238 A CN105537238 A CN 105537238A CN 201511002665 A CN201511002665 A CN 201511002665A CN 105537238 A CN105537238 A CN 105537238A
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- machine
- air
- waste
- rubbish
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
Abstract
The invention discloses a dissolved air flotation machine of a city and town domestic waste treatment system. The dissolved air flotation machine is provided with an air flotation pool (19), a dissolved air water pump (22), a pressure dissolved air tank (23) and an air compressor (24). A foam scraping machine (18) is arranged on the air flotation pool (19). By means of the technical scheme, deep treatment is carried out on the city and town domestic waste. Harmful gas in the waste can be decomposed, and meanwhile harmful substances in the waste can be diluted. Part of substances float and cycle, the labor intensity in the treatment process is greatly lowered, and a large amount of manpower and a large number of material resources are saved. The waste serves as production raw materials, organic matter and inorganic matter in the waste are separated and reasonably utilized, and organic fertilizer and building block materials are produced; and building thermal insulation materials are produced through white pollutants, and harmlessness and recycling of the waste are achieved.
Description
Technical field
The invention belongs to the technical field of environmental engineering.More specifically, the present invention relates to a kind of dissolved gas floatator of urban household waste treatment system.
Background technology
Along with the fast development of China's economy, consume a large amount of resources, produce a large amount of refuses, have a strong impact on and restrict economic development and threaten the life life quality of people.Develop the economy, pollution administration, become the common recognition of modern society, the direction of environmental protection work is the national development strategy implemented sustainable development, create harmonious society.Environmental protection is a fundamental state policy of China.Country is classified as energy-conserving and environment-protective industry as country and accelerates one of seven emerging strategic industries cultivated and develop.
According to statistics, China's application of city life garbage generation about 2.77 hundred million tons in 2011, accounts for 26% of whole world refuse production, is rubbish first big country in the world, and annual also with about 5% ~ 8% speed increase.
China's urban life storage rubbish, more than 8,000,000,000 tons, takes up an area more than 80 ten thousand mu; Occupation of land amount is increasing with the speed of annual about 4.8%.Garbage-surrounded city, has beaten alarm bell to urban development, more consumes a large amount of human and material resources and financial resources process.
At present, the trash processing way of China, mainly contains sanitary landfills, burning electricity generation, compost etc.Wherein, sanitary landfills wastes a large amount of land resource, and easily pollutes underground water source etc.; Burning electricity generation can make garbage bulk reduce 50% ~ 95%, but investment greatly, costly, also can discharge the harmful substance such as dioxin, mercury, and residual slag and dust are also poisonous, harmful, and have burned a large amount of callable resource; The cycle of compost is long, and organic matter and inorganic matter need packing just can reclaim.
Summary of the invention
In order to solve prior art Problems existing, the invention provides a kind of dissolved gas floatator of urban household waste treatment system, its objective is the harmless treatment and recycling that realize townm refuse.
To achieve these goals, the technical scheme that the present invention takes is:
Urban household waste treatment system of the present invention is provided with bag breaker, belt conveyor, four axle disintegrating machines, vertical helical air floatation machine, dissolved gas floatator, solid-liquid separating machine, sewage purifier, garbage disposal station;
Rubbish is sent to four axle disintegrating machines by belt conveyor by described bag breaker;
Between four described axle disintegrating machines and vertical helical air floatation machine, conveyer belt is set; Rubbish after four described axle crusher in crushing delivers to described vertical helical air floatation machine by conveyer belt;
Described vertical helical air floatation machine is connected with sewage purifier by returning pure water pipe; Described vertical helical air floatation machine is connected with solid-liquid separating machine by sewage pipe;
The outlet of sewer of described solid-liquid separating machine is connected with sewage purifier by pipeline.
Described bag breaker is provided with vibration screening device, the below of described vibration screening device, arranges transmission mechanism and is connected with described belt conveyor.
Described vibration screening device is provided with adjustable sieve separation structure, and the same direction of sieve plate of described adjustable sieve separation structure is arranged, and its cross section forms " V " shape, becomes bakie.
Described adjustable sieve separation structure is provided with sieve plate distance adjustment structure, and described sieve plate distance adjustment structure is for regulating the groove width of bakie.
On each described bakie, pusher is set; Its pusher direction is consistent with the direction of bakie.
Described belt conveyor is provided with tramp iron separator.
Described tramp iron separator is permanent magnetism self-unloading type deferrization device, be wherein provided with framework, two field structure permanent magnetic core, abandon iron belt, reducing motor and cylinder.
Described tramp iron separator respectively arranges one at the two ends of described belt conveyor.
Described refuse disposal system is provided with the electrical control equipment controlling the startup of threephase asynchronous machine, stopping and protection.
Described electrical control equipment is provided with computer for controlling or PLC control module.
Described electrical control equipment is provided with overload protecting circuit, open-phase protection circuit, current foldback circuit, under-voltage protecting circuit, short-circuit protection circuit, overheating protection circuit.
Four described axle disintegrating machines comprise four cutter shafts, are respectively two main shearing cutter shafts and two secondary shearing cutter shafts; Two main shearing cutter shafts are disposed adjacent, and the main shear knife on described main shearing cutter shaft forms main shear blade; Two secondary shearing cutter shafts are arranged on the both sides of two main shearing cutter shafts, and two secondary secondary shear knives sheared on cutter shafts form secondary shear blade with main shear knife respectively.
Four described axle disintegrating machines are provided with crusher screen.
In described vertical helical air floatation machine, be provided with the rotating guide of Spiral distribution along its axis.
In the below of described rotating guide, be provided with filter screen, at the upper surface of described filter screen, be provided with scraper plate.
The sewage draining valve of time opening is provided with in the bottom of described vertical helical air floatation machine.
Described vertical helical air floatation machine lower end cone arranges observation window.
In the upper end of described vertical helical air floatation machine, floating thing guiding gutter is set.
Described dissolved gas floatator is provided with flotation tank, dissolved air water pump, pressure air-dissolving tank and air compressor machine.
Described dissolved gas floatator is provided with flap coagulating basin.
Described dissolved gas floatator is provided with regulating reservoir.
Described dissolved gas floatator is provided with administration apparatus.
Scraping machine is provided with on described flotation tank.
Described dissolved gas floatator is provided with release.
Described solid-liquid separating machine is provided with rotary drum screen cloth and concentrates structure.
Described solid-liquid separating machine is provided with conditioning mixer.
Described conditioning mixer is provided with thickened sludge import, flocculating agent import.
Described sewage purifier is provided with air floatation machine and air-dissolving apparatus.
Described air floatation machine is steel circular profile, and its inside is provided with release, uniform device, sludge sump, scraper plate and transmission system; Described air floatation machine is also provided with sludge discharging pipe and Graceful pipe.
Described air floatation machine be provided with a medicine storing pot and No. one mix medicinal cupping.
A described medicine storing pot and medicament mixed in medicinal cupping are the one in polyacrylamide, polymer alumina, salt phenol, chlorine dioxide, chlorine dioxide and clorox, or multiple any combination.
Described air floatation machine is connected with sewage pipe by sewage pump.
Described sewage pipe is mixed medicinal cupping with No. two medicine storing pots and No. two and is connected.
No. two described medicine storing pots and No. two medicaments mixed in medicinal cupping are the one in polyacrylamide, polymer alumina, salt phenol, chlorine dioxide, chlorine dioxide and clorox, or multiple any combination.
Described air-dissolving apparatus comprises air compressor machine, air accumulator, dissolving; Described dissolving is connected with air floatation machine by high-pressure pump; Described air compressor machine is connected with air accumulator; Described air accumulator is connected with dissolving by gas control cabinet.
The unlimited implement of described refuse disposal system is arranged in garbage disposal station, and described garbage disposal station is airtight prefabricated house structure, is provided with rubbish is transported into and garbage disposal product transports transport channel and transport door.
Described garbage disposal station is provided with personnel's inlet/outlet.
Wall or the door of described garbage disposal station are provided with system cloud gray model observation window.
Described garbage disposal station is provided with ventilation equipment.
The present invention adopts technique scheme, rubbish is used as useful resource to treat, by civil engineering, plant equipment, uses the techniques such as centrifugation, magnetic, floating, filtration, pioneering is at home and abroad medium with water, and utilization physics, chemical method carry out advanced treating to application of city life garbage; The pernicious gas in rubbish can be decomposed, also can dilute the harmful substance in rubbish simultaneously; By centrifuging process, such that moieties is floating, circulation, greatly reduce the labour intensity in processing procedure, save a large amount of man power and material; Using rubbish as raw materials for production, organic matter wherein, inorganic matter are separated and Appropriate application, produce organic fertilizer, building block material; White pollution thing produces building thermal insulation material, realizes garbage harmless, resource; Its feature had is:
1, rubbish is without the need to packing, does not need to carry out process in early stage to rubbish, reduces processing links;
2, device miniaturization, realizes the treatment in situ of rubbish, solves the difficult problems such as the decrement transport of rubbish;
3, the garbage treatment quantity of whole production process is large, floor space is little, and each Biohazard Waste Disposal only needs soil to be about 600m
2; Cost is low, less energy consumption; Small investment, it is applied not by region and environmental limit, is easy to universal;
4, the water in processing procedure can reuse, and fully achieves the zero-emission of garbage disposal, no pollution; Take into full account the various compositions contained by rubbish, maximized secondary can be obtained and utilize, can not secondary pollution be caused simultaneously;
5, technique scheme can create huge economic benefit, is particularly suitable for national conditions and the garbage property of China.
Accompanying drawing explanation
Mark brief description in content shown in accompanying drawing and figure is as follows:
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is the tramp iron separator structural representation in the present invention;
Fig. 3 is dissolved gas floatator structural representation of the present invention;
Fig. 4 is vertical helical air floatation machine structural representation of the present invention;
Fig. 5 is solid-liquid separating machine structural representation of the present invention;
Fig. 6 is the structural representation of sewage purifier of the present invention;
Fig. 7 is garbage disposal station structural representation of the present invention;
Fig. 8 is the structural representation of vibration screening device of the present invention;
Fig. 9 is the top view of structure shown in Fig. 8.
Be labeled as in figure:
1, bag breaker, 2, belt conveyor, 3, tramp iron separator, 4, four axle disintegrating machines, 5, vertical helical air floatation machine, 6, dissolved gas floatator, 7, solid-liquid separating machine, 8, sewage purifier, 9, electrical control equipment, 10, garbage disposal station, 11, return pure water pipe, 12, sewage pipe.
13, regulating reservoir, 14, administration apparatus, 15, sewage pump, 16, flap coagulating basin, 17, release, 18, scraping machine, 19, flotation tank, 20, dissolved air water deposits pond, 21, sludge-tank, 22, dissolved air water pump, 23, pressure air-dissolving tank, 24, air compressor machine.
25, rotating guide, 26, screen net, 27, sewage draining valve, 28, observation window.
29, flocculating agent import, 30, conditioning mixer, 31, screen cloth thickened sludge, 32, rotary drum screen cloth concentrates structure, 33, sludge cake, 34, thickened sludge import.
35, air compressor machine, 36, air accumulator, 37, gas control cabinet, 38, dissolving, 39, medicine storing pot, 40, medicinal cupping is mixed for No. one, 41, air floatation machine, 42, sludge discharging pipe, 43, Graceful pipe, 44, high-pressure pump, 45, sewage pump, 46, sewage pipe, 47, No. two medicine storing pots, mix medicinal cupping for 48, No. two.
49, transport channel, 50, transport door, 51, personnel's inlet/outlet, 52, system cloud gray model observation window, 53, ventilation equipment.
54, scraper plate, 55, framework, 56, the permanent magnetic core of two field structure, 57, abandon iron belt, 58, reducing motor, 59, cylinder.
60, vibration screening device, 61, adjustable sieve separation structure, 62, sieve plate, 63, bakie, 64, pusher.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
Structure of the present invention is as shown in Figure 1 urban household waste treatment system.
The present invention is based on the theory of energy-conserving and environment-protective, innovation driving, provide application of city life garbage secondary utilization system treatment process, equipment technology, meet country about energy-conserving and environment-protective industrial policy and developing direction, there is the feature of emerging strategic industries.The present invention is pioneering is at home and abroad medium with water, uses physics, chemical method, carries out the degree of depth and thoroughly process, realize garbage harmless, resource, propose new thinking and new method application of city life garbage.
Technology of garbage disposal provided by the invention, is used as rubbish useful resource to treat, and the secondary achieving rubbish utilizes.Its advantage is:
1, rubbish is without the need to packing, is applicable to China's actual conditions, namely carries out integrated treatment to all kinds of rubbish;
2, device miniaturization, realizes the treatment in situ of rubbish, solves the difficult problems such as the decrement transport of rubbish;
3, take up an area less, each Biohazard Waste Disposal only needs soil to be about 600m
2, cost is little, energy consumption is low;
4, fully achieve the zero-emission of garbage disposal, no pollution, stop secondary pollution.
The present invention reduces the high efficiency of carbon emission, belongs to the gold medal project under the United Nations's Clean Development Mechanism (UNCDM) item.For a medium-sized city, daily output house refuse about 4000 tons, after implementing the present invention, can reduce CO2 emissions (CER) more than 840,000 tons every year at present.This will make tremendous contribution for completing energy-saving and emission-reduction index; Meanwhile, the product that the material secondary after refuse classification utilizes can create annual profits tax 2.16 hundred million yuans.
In order to solve prior art Problems existing and overcome its defect, realize the harmless treatment of townm refuse and the goal of the invention of recycling, the technical scheme that the present invention takes is:
As shown in Figure 1, urban household waste treatment system of the present invention is provided with bag breaker 1, belt conveyor 2, four axle disintegrating machine 4, vertical helical air floatation machine 5, dissolved gas floatator 6, solid-liquid separating machine 7, sewage purifier 8, garbage disposal station 10;
Rubbish is sent to four axle disintegrating machines 4 by belt conveyor 2 by described bag breaker 1;
Between four described axle disintegrating machines 4 and vertical helical air floatation machine 5, conveyer belt is set; Rubbish after four described axle disintegrating machine 4 fragmentations delivers to described vertical helical air floatation machine 5 by conveyer belt;
Described vertical helical air floatation machine 5 is connected with sewage purifier 8 by returning pure water pipe 11; Described vertical helical air floatation machine 5 is connected with solid-liquid separating machine 7 by sewage pipe 12;
The outlet of sewer of described solid-liquid separating machine 7 is connected with sewage purifier 8 by pipeline.
Technique scheme of the present invention, relates to civil engineering, plant equipment, uses the techniques such as centrifugation, magnetic, floating, filtration, the organic matter in rubbish, inorganic matter is separated and Appropriate application, produces organic fertilizer, building block material; White pollution thing produces building thermal insulation material.Using rubbish as raw materials for production, its product can create huge economic benefit, meets national conditions and the garbage property of China, suits measures to local conditions, and small investment, is easy to universal.
Consider the various compositions contained by rubbish, maximized secondary can be obtained and utilize, can not secondary pollution be caused simultaneously; Take water as medium, the pernicious gas in rubbish can be decomposed, also can dilute the harmful substance in rubbish simultaneously, by centrifuging process, such that moieties is floating, circulation, greatly reduce the labour intensity in processing procedure, save a large amount of man power and material; Water in processing procedure can reuse, and accomplishes zero-emission.The garbage treatment quantity of whole production process is large, power consumption is few, and it is applied not by region and environmental limit.
After townm refuse adopts technical finesse of the present invention, following product can be produced:
1, plastics, comprise plastic film, packaging bag, plastic bottle etc., account for 10%-15% of rubbish total amount, enter recycling economy;
2, sandstone, cullet, livestock and poultry bone, xylocarp shell etc., account for 5% of rubbish total amount, be processed into construction material after crushed;
3, metal, accounts for 2%-3% of rubbish total amount, enters recycling economy;
4, moisture, accounts for 20%-30% of rubbish total amount, enters treatment system of the present invention after treatment and recycles;
5, the organic substance of garbage disposal formation, accounts for 10%-15% of rubbish total amount, by the residuals after anaerobic digestion, then after sterilization and dry process, is that the soil of high-quality supplements fertilizer.
As shown in Figure 1, bag breaker 1 is provided with multiple bale broken hook, and under motor drives, the various packaging bag hooks of load garbage are broken, all shaken off by rubbish on the belt of belt conveyor 2 by motion.
As shown in Figure 8 and Figure 9: described bag breaker 1 is provided with vibration screening device 60, the below of described vibration screening device 60, arranges transmission mechanism and is connected with described belt conveyor 2.Carry out preliminary sorting by vibration screening device 60, mainly all kinds of battery is sifted out, wherein mainly No. 2 batteries.
Be sent to belt conveyor 2 at bag breaker 1 point of rubbish sifted out by this transmission mechanism, then be sent to four axle disintegrating machines 4 and carry out fragmentation.
Described vibration screening device 60 is provided with adjustable sieve separation structure 61, and the same direction of sieve plate 62 of described adjustable sieve separation structure 61 is arranged, and its cross section forms " V " shape, becomes bakie 63.All kinds of columniform battery is leaked down by bakie 63, then passes through container collection.
Owing to being arranged to " V " shape structure, the rubbish such as columned battery will be stuck in groove, wait for that pusher 64 timing is released, realize the separation of battery.
Described adjustable sieve separation structure 61 is provided with sieve plate distance adjustment structure, and described sieve plate distance adjustment structure is for regulating the groove width of bakie 63.To adapt to the sub-sieve of the battery of different size.This mainly carries out selecting and regulating according to the rubbish situation of different regions.
On each described bakie 63, pusher 64 is set; Its pusher direction is consistent with the direction of bakie.Pusher 64 realizes the motion of timing pusher; Or carry out pusher motion according to the signal that induction installation obtains, first battery is separated from rubbish.
By technique scheme, first the harmful substances such as battery are separated from rubbish, for next step advanced treating is got ready, lay the foundation.
Belt conveyor 2 carries out deironing operation, then the rubbish eliminating impurity iron is dropped into four axle disintegrating machines 4, then the rubbish after fragmentation is delivered to vertical helical air floatation machine 5.
As shown in Figure 2, described belt conveyor 2 is provided with tramp iron separator 3.
Described tramp iron separator 3 is permanent magnetism self-unloading type deferrization device, be wherein provided with framework 55, two field structure permanent magnetic core 56, abandon iron belt 57, reducing motor 58 and cylinder 59.
The tramp iron separator 3 of said structure is applicable to automatically remove ferromagnetic material from non-magnetic material, has perfect two field structures, to ensure complete machine fault-free longtime running in adverse circumstances.
Owing to abandoning the continuous motion of iron belt 57, adsorbed by scrap iron from magnetic position, forward non-magnetic position to, scrap iron falls automatically, carries out the collection of scrap iron, recycling.
Described tramp iron separator 3 respectively arranges one at the two ends of described belt conveyor 2.
Respectively arrange a tramp iron separator 3 at the two ends of described belt conveyor 2, its effect is: guarantee that all magnetisable materials all can be eliminated.
When arranging, tramp iron separator 3 suction of front end can be made to be less than the suction of the tramp iron separator 3 of rear end, and Each performs its own functions to make two tramp iron separators 3, fully removes magnetisable material; And the tramp iron separator 3 of rear end abandon the tramp iron separator 3 that iron belt 57 movement velocity is less than front end, ensure scrap iron difficult drop-off.
As shown in Figure 1, described refuse disposal system is provided with the electrical control equipment 9 controlling the startup of threephase asynchronous machine, stopping and protection.
The motor controlling cabinet of refuse disposal system of the present invention is used to control the control appliance of the startup of threephase asynchronous, stopping, operation, protection.Star-triangle conversion decompression startup, soft start, self-coupling voltage reducing three kinds of Starting mode can be divided into, reduce dash current when starting, can start and stop motor more continually, and make motor be unlikely to overheated, and the starting characteristic of motor can be regulated easily, thus extend the life-span of motor.
Described electrical control equipment 9 is provided with computer for controlling or PLC control module.Electrical control equipment 9 adopts computer programming to operate, and realizes the automation of whole-process control.The speed of service of computer or PLC control module program setting all devices, makes it mutual coordination.
Described electrical control equipment 9 is provided with overload protecting circuit, open-phase protection circuit, current foldback circuit, under-voltage protecting circuit, short-circuit protection circuit, overheating protection circuit.
Above-mentioned setting, makes motor have the defencive function of the faults such as overload, disconnected phase, overcurrent, under-voltage, overheated, short circuit, realizes normal work and the safety in production of system, and guarantee that equipment there will not be catastrophe failure, extend its service life.
As shown in Figure 1, four described axle disintegrating machines 4 comprise four cutter shafts, are respectively two main shearing cutter shafts and two secondary shearing cutter shafts; Two main shearing cutter shafts are disposed adjacent, and the main shear knife on described main shearing cutter shaft forms main shear blade; Two secondary shearing cutter shafts are arranged on the both sides of two main shearing cutter shafts, and two secondary secondary shear knives sheared on cutter shafts form secondary shear blade with main shear knife respectively.
Each main shearing cutter shaft and secondary shearing on cutter shaft all arrange one group of cutter.
The shearing mechanism of said structure is:
Main cut mode: formed between adjacent main shear knife group cutting edge and relatively cut;
Secondary cut mode: form relative cutting between adjacent main shear knife group with secondary shear knife group cutting edge
Four described axle disintegrating machines 4 are provided with crusher screen.
The discharging size of four axle disintegrating machines 4 is controlled by screen cloth, and material is by after cutting at one time, and the particle size material less than sieve mesh will discharging from mesh; The material that size is larger than mesh, by the guide effect of main shear knife and secondary shear knife, turns back to broken case along screen cloth inner surface and carries out secondary cutting; Circulation like this, until material can all dischargings from mesh.
As shown in Figure 4, in described vertical helical air floatation machine 5, be provided with the rotating guide 25 of Spiral distribution along its axis.
Rubbish after fragmentation, carries out preliminary sorting at vertical helical air floatation machine 5, floating thing is separated.
In the below of described rotating guide, be provided with filter screen 26, at the upper surface of described filter screen 26, be provided with scraper plate 54.The effect of scraper plate 54 prevents rubbish from being blocked by sieve mesh, improves overanxious ability and effect.
The sewage draining valve 27 of time opening is provided with in the bottom of described vertical helical air floatation machine 5.The dirt that some proportions are larger, is formed precipitation in the bottom of vertical helical air floatation machine 5, it regularly can be discharged by sewage draining valve 27.
Described vertical helical air floatation machine 5 lower end cone arranges observation window 28.Observation window, for observing the accumulation situation of the heavier dirt of vertical helical air floatation machine 5 lower end cone, processes to open sewage draining valve 27 in time.
In the upper end of described vertical helical air floatation machine 5, floating thing guiding gutter is set.Floating thing is discharged vertical helical air floatation machine 5 by guiding gutter and is reclaimed.
Rotating guide 25 High Rotation Speed of Spiral distribution, more convenient and thorough report realizes being separated of floating thing and other rubbish.At this moment described floating thing mainly plastics and greasy dirt, can produce regenerated plastics by after plastics recovery, carries out harmless treatment as the raw material of industry, fully accomplish twice laid after greasy dirt reclaims.
As shown in Figure 3, described dissolved gas floatator 6 is provided with flotation tank 19, dissolved air water pump 22, pressure air-dissolving tank 23 and air compressor machine 24.
Dissolved gas floatator 6 is steel design, and its operation principle is:
Air is by being pumped into pressure air-dissolving tank 23, be forced to be dissolved in water under 0.5Mpa pressure, when release suddenly, the air be dissolved in water is separated out, form a large amount of fine and close microbubble group, in slow uphill process, adsorb suspension, make aerosol density decline and float, reach the object removing SS and CODcr.Industry in cities and towns, residence district, food, medical treatment can be applied to, butcher, gelatine, gelatin, chemical industry, leather, weaving, hotel, printing and dyeing, the rubbish of the every profession and trade such as papermaking, waste water control easily qualified discharge or reuse.
Described dissolved gas floatator 6 is provided with flap coagulating basin 16.Flap coagulating basin 16 extends cohesion route, improves flocculating result.
Described dissolved gas floatator 6 is provided with regulating reservoir 13.Regulating reservoir 13 takes appropriate measures according to the chemical property of sewage and mud.
Described dissolved gas floatator 6 is provided with administration apparatus 14.Be mainly used in the medicine throwing in cohesion.
Scraping machine 18 is provided with on described flotation tank 19.After air supporting, a large amount of foam can be generated at liquid surface, need to adopt scraping machine 18 to be removed.
Described dissolved gas floatator 6 is provided with release 17.Release is the critical component producing microbubble, the dissolved air water that dissolving comes here fully mixes with waste water, unexpected release, produce vigorous agitation and eddy current, form the microbubble that diameter is about 20-80um, thus invest on the floccule body in waste water, thus reducing the rising proportion of floccule body, clear water is thoroughly separated;
Micro-flotation air floatation machine, by brand-new rectification measure, substantially increases the effect of sewage disposal.Its general principle is:
Micro-flotation technology is when being separated removal suspension solid content and colloidal attitude material, that the fine flotation material in the microbubble of physical method generation and handled water, fine wadding polymers are adhered to each other, formed intergranular capsule presss from both sides and the adhesion of middle bubble bridge formation haves both at the same time " copolymerization adhesion ", in addition chemical flocculation effect, completes micro-flotation.Realize Separation of Solid and Liquid, sewage is purified.
The feature of dissolved gas floatator 6:
1, micro-flotation air floatation machine is furnished with high-efficiency dissolued-air system, and microbubble average diameter, at below 1um, compares with the level of domestic and international 20-50um at present, at least reduces 20 times, and namely when molten tolerance is equal, microbubble total surface area at least increases more than 400 doubly.In fact, because dissolved-air rate significantly improves, microbubble total surface area or bubble density add thousands of times.Scientific research shows: after microbubble diameter is less than certain value, according to statistical mechanics, the impact of its periphery hydrone warm-up movement is by disequilibrium, and bubble will participate in part Brownian movement, very be conducive to oxygen molecule in bubble expands micro-in sewage, and thus aeration effect will exceed and is far above thousands of times;
2, adopt special stainless steel mechanism in micro-flotation air floatation machine, play unprecedented rectification, steady flow result, and special efficient delivery system, eliminate the energy of dissolved air water to greatest extent, that is, make molten gas from the high energy value of depth balance, drop to almost close to the low energy value of normal pressure;
3, micro-flotation air floatation machine compact conformation, miniaturization, floor space are little; As day process 1000-4000m
3the water yield, device height is 5.5m only, takes up an area 10m
2, can either inside be arranged on completely;
4, this mechanomotive force consumption is few, can reduce by more than 50% than common air supporting;
5, chemical consumption is low, can reduce by more than 50% than common By Bubble-floating Method;
6, concentration is discharged high.Can reach more than 4%, water outlet is as clear as crystal, and SS clearance reaches more than 96%, and insoluble COD can all remove.
As shown in Figure 5, described solid-liquid separating machine 7 is provided with rotary drum screen cloth and concentrates structure 32.
Concentrate structure 32 by the moisture extrusion in mud by rotary drum screen cloth, sludge volume is reduced greatly, form screen cloth thickened sludge 31.
Described solid-liquid separating machine 7 is provided with conditioning mixer 30.Mud inconsistent for concentration is mixed.
Described conditioning mixer 30 is provided with thickened sludge import 34, flocculating agent import 29.
Screen cloth thickened sludge 31, after pressure processing, forms sludge cake 33, and discharges outside solid-liquid separating machine 7, transported, process further by Transport Machinery.Because the Main Ingredients and Appearance of sludge cake 33 has at this moment been inorganic matter, so the present invention also arranges building block production equipment at this, the sludge cake 33 produced in garbage processing procedure is carried out deep processing, produce construction material, increase economic efficiency.
Concentrated is a kind of important method reducing sludge volume.In sludge handling process, generally all adopt the preprocess form that the method for gravity concentration operates as sludge dewatering.But solid-liquid separating machine 7 of the present invention adopts two section type drum concentration mud, on the basis of former belt filter press and Barrate type grilling machine, through the novel sludge concentration device of optimum organization, various industrial sludge processed can be applied to, butcher, animal husbandry sludge dewatering treatment, sludge from wastewater treatment plant processed, the condensing process of purification plant sludge, solid-liquid separation dehydration process in the various flow process of food chemistry mining industry.
NC type lightweight center transmission thickener is applicable to the concentrated of activated sludge in the industry such as municipal administration, light industry, and NC type heavy type is applicable to than great in the industry sewage process such as mine, smelting, iron and steel, the sludge condensation that subsidence velocity is fast.
The technology features of two section type drum concentration mud:
1, overall investment economizes, and comprises plant equipment, automatic control electrical system, civil engineering and fees paid for taking rural land;
2, floor space is little, is generally 1/10 to ten/5th of conventional treatment process floor space, and plant area's characteristics of compact layout is attractive in appearance;
3, the water quality after process is good, can be better than one-level emission standard A or miscellaneous domestic water quality standard;
4, technological process is short, and the efficiency of transmission of oxygen is high, and system oxygen-transfer efficiency can reach 30%-35%, and oxygen supply power consumption is low;
5, the rate of filtration is fast, and processing load is much higher than conventional treatment process;
6, strong shock resistance, the impact of climate, the water yield and change of water quality is little, is particularly suitable for cold weather area, and can intermittent duty;
7, can build up closed factory building, reduce foul smell, noise to the impact of surrounding environment, visual perception is effective;
8, all adopt PLC Based Intelligent Control, operating personnel are few, and operational management is convenient, are convenient to safeguard;
9, whole modular construction, is convenient to the reorganization and expansion carrying out the later stage.
As shown in Figure 6, described sewage purifier 8 is provided with air floatation machine 44 and air-dissolving apparatus.
Described air floatation machine 44 is steel circular profile, and its inside is provided with release, uniform device, sludge sump, scraper plate and transmission system; Described air floatation machine 44 is also provided with sludge discharging pipe 42 and Graceful pipe 43.
Described air floatation machine 44 be provided with a medicine storing pot 39 and No. one mix medicinal cupping 40.
A described medicine storing pot 39 and medicament mixed in medicinal cupping 40 are the one in polyacrylamide, polymer alumina, salt phenol, chlorine dioxide, chlorine dioxide and clorox, or multiple any combination.
Wherein:
Polyacrylamide (PAM): be high molecular weight water soluble polymer, is insoluble to most of organic solvent, has good flocculability, can reduce the frictional resistance between liquid.
The effect of polyacrylamide is selected in air supporting:
By Bubble-floating Method mainly utilizes gas that sewage is oxidized, and air supporting great majority are the advanced treating for two stage biological process, current modal industry be for oil-polluted water oil removal after supplementary process.By Bubble-floating Method can concentrated effectively for activated sludge; The removal of suspended impurity in sewage.Air supporting selects the polyacrylamide effectiveness comparison of anion good, particularly partial reflux dissolved air flotation, has both the technological advantage of infinite reflux, full air-dissolving air-float, and comparing gas distribution By Bubble-floating Method, to have the amount of disposing of sewage large, the feature that treatment effect is high; Compare electrolytic gas float glass process to have and save electric energy and the lower advantage of operating cost, be applicable to modern enterprise energy-saving and environmental protection, subtract the requirement of consumption, synergy.
Aluminium polychloride: be that conventional inorganic coagulant is low molecule crystal salt with the fundamental difference of conventional inorganic coagulant, and the structure of aluminium polychloride is made up of the polycarboxy complex compound that form is changeable, flocculation sediment speed is fast, be suitable for pH value wide ranges, to pipe-line equipment non-corrosiveness, purifying water effect is obvious, and effectively can prop up dewater middle chromaticness SS, COD, BOD and the heavy metal ion such as arsenic, mercury, this product is widely used in drinking water, water for industrial use and sewage treatment area.
Chlorine dioxide (disinfectant): chlorine dioxide because its to have sterilizing ability strong, human body and animal are safe from harm and the features such as secondary pollution are not caused to environment and enjoys the favor of people.Chlorine dioxide is not only one and is not produced carcinogenic Broadspectrum environment-protective type disinfection sanitizer, but also shows significant effect in sterilization, food fresh keeping, deodorizing etc.As oxidant, deodorant, biocide, antistaling agent, bleaching agent etc.
Secondary sodium chloride (also making clorox): strong oxidizer, is used for papermaking, weaving, light industry etc. as bleaching agent, oxidant and water scavengine agent, has the effect of bleaching, sterilization, sterilization.For water purification, and make disinfectant, association with pulp bleaching etc., with chloramines processed etc. in medical industry.
Described air floatation machine 44 is connected with sewage pipe 46 by sewage pump 45.
Described sewage pipe 46 is mixed medicinal cupping 48 with No. two medicine storing pots 47 and No. two and is connected.
Described No. two medicine storing pots 47 and No. two medicaments mixed in medicinal cupping 48 are the one in polyacrylamide, polymer alumina, salt phenol, chlorine dioxide, chlorine dioxide and clorox, or multiple any combination.
Above-mentioned medicament and a medicine storing pot 39 with No. one to mix medicinal cupping 40 identical.
Described air-dissolving apparatus comprises air compressor machine 35, air accumulator 36, dissolving 38; Described dissolving 38 is connected with air floatation machine 44 by high-pressure pump 44; Described air compressor machine 35 is connected with air accumulator 36; Described air accumulator 36 is connected with dissolving 38 by gas control cabinet 37.
Sewage purifier stable and reliable operation of the present invention, effluent quality is good, at the bottom of processing cost, easy to operate, is easy to grasp.
Dissolved air flotation sewage treatment machine is steel design, and its operation principle is:
Air is by being pumped into pressure air-dissolving tank, be forced to be dissolved in water under 0.5MPA pressure, when release suddenly, the air be dissolved in water is separated out, form a large amount of extremely close microbubble group, in slow uphill process, adsorb suspension, make aerosol density decline and float, reach the object removing SS and COD, this product adaptation is in sewage disposals such as oil, chemical industry, papermaking, leather, printing and dyeing, food, starch.
Dissolved gas floatator adopts new and effective molten gas equipment---microbubble generator, replace traditional bleed equipment molten gas in water, and some inclined tube groups are installed in air supporting region, comprise casing, Slag Scraping Device, spiral discharging machine and jointly form a complete air-float purifier.
Theoretically, pneumatically supported treatment effect and the time of staying are not contacted directly, and only relevant with air supporting area, if the air flotation zone of depth of water H to be reduced to depth of water H/10, so the air supporting Distance geometry time of staying all will reduce 10 times, Here it is famous " shallow pool theory ".The object that air flotation zone adds inclined tube increases air supporting area, greatly reduces Reynolds number, make air supporting avoid carrying out under turbulent condition, manufacture good laminar condition, reach the effect of shallow air-floatation.In like manner, when the density of suspension is greater than 1, owing to having installed inclined tube group, the effect of shallow pond precipitation will be produced, thus carried out under making to be deposited in turbulent-flow conditions.Particle diameter religion is large, the large polluter not easily floated of proportion religion will focus in mud collection area, reaches the object of water purification.Can be divided into by water flow mode: flat flow dissolved gas floatator, up flow type dissolved gas floatator and composite type dissolved gas floatator.
Sewage purifier of the present invention has following technical characterstic:
Water suction limit, limit air-breathing, pressurization mixing in pump, micro air bubble size 10 ~ 30 microns.Overcome conventional apparatus fluctuation of service, air pocket seethes and discharges blockage problem.Air floatation machine is easy for installation, and treatment effect is good, and energy ezpenditure is low, effectively can remove in waste water the frivolous flco being difficult to precipitate.
1, air supporting function eliminates sludge bulking;
2, disposal ability is large, efficiency is high, occupation of land is few;
3, skill process and device structure are simply, easy to use, maintenance;
4, floating machine time to aeration in water, have positive effect to the surfactant removed in water and stink, add the dissolved oxygen in water due to aeration, for postorder process provides advantage simultaneously.
Dissolved gas floatator is herein for removing the equipment of solid suspension, grease and various jelly in various industry and municipal wastewater.Dissolved gas floatator is widely used in oil refining, chemical industry, brewages, vegetable oil production and refining, butcher, electroplate, the process of the industrial wastewater such as printing and dyeing and municipal wastewater.
Vertical-flow dissolved gas floatator (being also circular dissolved gas floatator), apply new molten mechanism of qi reason, devise novel unique air dissolving system, the treatment effect of its excellent operating characteristics brilliance, finds full expression in Industrial Wastewater Treatment.This product is mainly adapted to the sewage disposals such as oil, chemical industry, papermaking, leather, printing and dyeing, food, starch.
This dissolved air flotation sewage treatment machine structure mainly consists of the following components:
1, air floatation machine:
Circular steel design is main body and the core of water treatment machine.There are release, uniform device, sludge pipe, outlet pipe, sludge sump, scraper plate and transmission system etc. in inside.
Release is placed in the middle position of air floatation machine, it is the critical component producing microbubble, the dissolved air water that dissolving comes here fully mixes with waste water, unexpected release, produce vigorous agitation and eddy current, form the microbubble that diameter is about 20-80um, thus invest on the floccule body in waste water, thus reducing the rising proportion of floccule body, clear water is thoroughly separated;
The structure of uniform device journey taper, is connected on release, and Main Function is dispersed evenly in tank body by the clear water separated and mud;
Outlet pipe is distributed in tank body lower part, and is connected to tank top spilling by a uprise,
Overfall is provided with water level regulating handle, is convenient to water level in regulating tank;
Sludge pipe is installed on tank base, for discharging sediment;
Tank body top does not have sludge sump, and groove has scraper plate, and scraper plate not stall is moved, and constantly scrapes in sludge sump by the mud of floating, certainly flow in sludge-tank.
2, air dissolving system:
Air dissolving system is primarily of dissolving, air accumulator, air compressor, high-pressure pump composition.
Dissolving is the part of most critical in system, and its effect is exactly the abundant contact realizing water and air, accelerates air dissolves.It is a closed pressure resistant cylinder of steel, and indoor design has baffle plate, spacer, the dispersion can accelerating gas and water body, mass transport process, improves molten gas efficiency.
3, pharmacy jar:
Pharmacy jar steel round can, for dissolving storage liquid, wherein two is dissolving tank, and with agitating device, two other is medicament storage tank, and volume is supporting with process capacity of water.
Installation steps:
Dissolved gas floatator is widely used in plumbing and wastewater treatment, and it can remove in waste water the frivolous flco being difficult to precipitate effectively.Its installation steps should be as follows:
1, the electric appliance box of air floatation machine generally should be placed on staircase side, environment should totally, clean.
2, before air floatation machine is installed, must compacting foundation.And with the padded 100-150mm of concrete mortar.Also installation can be maked somebody a mere figurehead, but basic necessity can bear weight when equipment runs.
3, outlet can connect sewer discharge, as entered lower road treatment process, can directly connect with lower road treatment facility.
4, adjustment level is needed after in place.
5, the duct coupling between import and reaction tank, it is more short better to require, is destroyed in the duct in order to avoid body doubted by wadding.
6, outlet can be connected to sludge sump or sludge treatment device.
7, gas air floatation machine need establish cleaning sewer, can dig open channel, also can directly adopt pipeline to be connected to regulating reservoir, so that the water rinsing flotation tank discharges.
Dissolved gas floatator is a kind of Separation of Solid and Liquid airfloat equipment used in sewage, mainly effectively can remove the impurity such as SS, the CODcr in sewage in Water warfare, sanitary sewage, Industrial Wastewater Treatment.Points for attention and the daily maintenance method of dissolved gas floatator are as follows:
1, clarified water pump, air compressor machine, scraping machine want intermittent oiling to lubricate, and general air compressor machine adds once oil for two months, change once oil half a year.
2, enter the necessary dosing of sewage of dissolved gas floatator, otherwise effect is undesirable.
3, on dissolving, pressure gauge reading must not more than 0.6MPa.
4, safety valve whether reliable operation on the dissolving making regular check on dissolved gas floatator.
5, when blocking occurs release, can vacuum pumping valve be opened, release tongue piece be opened, makes its self-cleaning with clear water.
6, how many flotation tanks should look sediment, regularly cleans.
Dissolved gas floatator is used in the industry-by-industries such as water factory, sewage farm, iron and steel, oil, chemical industry, printing and dyeing, weaving widely, gas is sucked together with pump inlet with recirculation water, impeller meet again through pump becomes tiny dissolved air water, milky dissolved air water is released into again through pressure-reducing valve, flocculation is floated, thus reaches purification object.Several advantages of dissolved gas floatator are:
1, dissolved gas floatator performance steady in a long-term, easy to operate, easy care, low noise;
2, the efficient adsorption of dissolved gas floatator (air-dissolving air-float equipment) microbubble and suspended particulate, improves the removal effect of SS;
3, air floatation machine controls and easy maintenance automatically, becomes real " fool " formula treatment system.
4, dissolved gas floatator multiphase flow pump can replace force (forcing) pump, air compressor machine, large-scale dissolving, ejector and discharge first-class;
5, dissolved air water dissolved efficiency 80-100%, higher than traditional air-dissolving air-float efficiency 3 times;
6, dissolved gas floatator can high, micro air bubble≤20 μm of water suction limit, limit air-breathing, pressurization mixing in pump, gas-liquid dissolved efficiency;
7, multilayer spoil disposal, guarantees outlet effect;
8, low pressure operation, molten gas efficiency is up to 99%, and outgassing rate is up to 99%.
As shown in Figure 7, the unlimited implement of described refuse disposal system is arranged in garbage disposal station 10, described garbage disposal station 10 is airtight prefabricated house structure, is provided with rubbish is transported into and garbage disposal product transports transport channel 49 and transport door 50.
Described transport channel 49 is the passage of slope shape, facilitates the turnover of rubbish and Working vehicle.Transport door 50 realizes automatically, or electric opening, makes more convenient operation, fast.
Described unlimited implement comprises bag breaker 1, belt conveyor 2, tramp iron separator 3, four axle disintegrating machine 4 and vertical helical air floatation machine.
Described garbage disposal station 10 is provided with personnel's inlet/outlet 51.Described electrical control equipment 9 also can be arranged in garbage disposal station 10.
Wall or the door of described garbage disposal station 10 are provided with system cloud gray model observation window 52.
Described garbage disposal station 10 is provided with ventilation equipment 53.Because garbage disposal station 10 has certain sealing property, therefore, by ventilation equipment 53, the gas of the dirt in garbage disposal station 10 is discharged, line space of going forward side by side gas purified treatment.
Economic and Efficiency Analysis of the present invention:
After technical scheme of the present invention is applied, the price of every suit system is about 40-50 ten thousand yuan.Produce 5000 covers by an enterprise to calculate, annual value of production can reach more than 2,000,000,000 yuan, can contribution tax about 300,000,000 yuan.
Rubbish is produced into building thermal insulation material and other products after being separated, and year consumes 1,500,000 tons, rubbish, and therefrom can change resource into, value per ton, with 1000 yuan of calculating, can produce value 7.5 hundred million yuan, year contribution tax 300,000,000 yuan.
If take technology transfer mode, press transfer 1000 enterprise calculation, each enterprise transfer fee 50,000 yuan every year, can acquiring technology transfer fee 5,000 ten thousand yuan.
After project is gone into operation, indices average annual growth 10%.
Due to China so that global rubbish quantum of output increasing, need space to be processed very large, therefore, implement technical prospect of the present invention very optimistic.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (1)
1. the dissolved gas floatator of urban household waste treatment system, described urban household waste treatment system is also provided with bag breaker (1), belt conveyor (2), four axle disintegrating machines (4), vertical helical air floatation machine (5), solid-liquid separating machine (7), sewage purifier (8), garbage disposal station (10);
Rubbish is sent to four axle disintegrating machines (4) by belt conveyor (2) by described bag breaker (1);
Between four described axle disintegrating machines (4) and vertical helical air floatation machine (5), conveyer belt is set; Rubbish after four described axle disintegrating machine (4) fragmentations delivers to described vertical helical air floatation machine (5) by conveyer belt;
Described vertical helical air floatation machine (5) is connected with sewage purifier (8) by returning pure water pipe (11); Described vertical helical air floatation machine (5) is connected with solid-liquid separating machine (7) by sewage pipe (12);
The outlet of sewer of described solid-liquid separating machine (7) is connected with sewage purifier (8) by pipeline.
It is characterized in that:
Described dissolved gas floatator (6) is provided with flotation tank (19), dissolved air water pump (22), pressure air-dissolving tank (23) and air compressor machine (24).
Scraping machine (18) is provided with on described flotation tank (19).
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| CN201511002665.7A CN105537238A (en) | 2015-12-25 | 2015-12-25 | Dissolved air flotation machine of city and town domestic waste treatment system |
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Application publication date: 20160504 |