CN108870405A - A kind of hazardous waste collection disposing technique - Google Patents
A kind of hazardous waste collection disposing technique Download PDFInfo
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- CN108870405A CN108870405A CN201710316500.XA CN201710316500A CN108870405A CN 108870405 A CN108870405 A CN 108870405A CN 201710316500 A CN201710316500 A CN 201710316500A CN 108870405 A CN108870405 A CN 108870405A
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- waste
- rotary kiln
- tank
- flue gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of hazardous wastes to collect disposing technique, including dangerous waste incineration treatment process and industrial wastes materializing strategy technique；The dangerous waste incineration treatment process includes charging processing system, burning processing system, residual neat recovering system and flue gas purification system；The charging processing system, burning processing system, residual neat recovering system and flue gas purification system are sequentially connected, and the feed system includes rotary kiln solid feeding system and rotary kiln liquid feed line, and the burning processing system includes rotary kiln and dual firing chamber；The one outlet of rotary kiln is connected with an entrance of dual firing chamber；The entrance of rotary kiln is connected with rotary kiln solid feeding system and rotary kiln liquid feed line respectively.To realize that target is disposed in recycling, minimizing and the innoxious processing of hazardous waste.Burning disposal can be used to hazardous waste that is should not recycling but can burning.The disposition of industrial dangerous waste centralized burning can effectively solve above-mentioned many environmental problems.
Description
Technical field
The invention belongs to the hazardous waste processing technology fields in field of environment protection, and in particular to a kind of hazardous waste receipts
Collect disposing technique.
Background technique
With the development of society, the solid-state castoff product and liquid exhaust gas article in industrial production are more and more, danger is useless
Object not only has long-term pollution to environment, and there is also the harmfulness such as inflammable, explosive, toxic, burn into infection.
Dangerous waste incineration technique is current stable, processing hazardous waste main method.Since current hazardous waste generates
Type, nature difference are huge, and burning generates a large amount of corrosivity highly acid gases and causes to the refractory lining bottom seriously corroded of kiln
The abnormal Parking of dangerous waste incineration enterprise production is frequent, seriously affects kiln and normally designs produce load, and causes
Nearly all dangerous waste incineration kiln cannot reach design produce load.Enterprise's production is seriously lower than Design cooling load, enterprise storehouse
Library is overstocked, and phenomenon is serious, and depot accident happens occasionally.
Hazardous waste generates type and nature difference is big, and according to its physical state, solid-state, liquid hazardous waste are convenient for conveying
It is burned in kiln, but with high salt, semisolid high-viscosity material and high-moisture material are difficult to direct burning disposal and with biggish
Risk.
In order to solve this problem, the present invention is proposed hereby.
Summary of the invention
The purpose of the present invention is to provide a kind of hazardous waste collection disposing technique.
In order to realize these purposes, adopt the following technical scheme that：
A kind of hazardous waste collection disposing technique, including dangerous waste incineration treatment process and industrial wastes materializing strategy work
Skill；The dangerous waste incineration treatment process includes charging processing system, burning processing system, residual neat recovering system and flue gas
Purification system；The charging processing system, burning processing system, residual neat recovering system and flue gas purification system are sequentially connected.
Further, the feed system includes rotary kiln solid feeding system and rotary kiln liquid feed line, described
Burning processing system includes rotary kiln and dual firing chamber；The one outlet of rotary kiln is connected with an entrance of dual firing chamber；Revolution
The entrance of kiln is connected with rotary kiln solid feeding system and rotary kiln liquid feed line respectively.
Further, the rotary kiln solid feeding system includes：Crusher, sorting device, compatibility container, mixing hole,
Grab bucket apparatus for feeding；Crusher, sorting device are connected with compatibility container respectively, and compatibility container is connected with mixing hole, mixing
Hole is connected with grab bucket apparatus for feeding；The grab bucket apparatus for feeding includes driving grab bucket, tipping bucket feeder, double disc hydraulic packing
Valve, chute.
Further, the rotary kiln liquid feed line includes：Waste liquid tank, waste drains pump, filter, atomizer, compression
Air system；Industrial wastes is filled in waste liquid tank；Waste liquid tank, filter, waste drains pump, waste drains pump, compressed air system, atomizer
It is sequentially connected and connects.
It further, further include aid fuel combustion system in the incineration system, auxiliary heating burner arrangement is two
Fire room.
Further, the waste heat boiler is connected with flue gas purification system；
The flue gas purification system capital equipment includes sequentially connected half dry type chilling tower, neutralization reaction tower, level-one cloth
Bag dust collector, second level bag filter, air-introduced machine, level-one spray absorber, second level spraying filler absorption tower and chimney；
The half dry type chilling tower is connected with lye configuration device；Waste heat boiler is connected with half dry type chilling tower.
Further, industrial wastes materializing strategy technique includes waste hydrochloric acid materializing strategy system, other inorganic waste liquids materializations
Processing system and waste water treatment system；The waste hydrochloric acid materializing strategy system includes waste liquid reservoir, infusion pump, reaction kettle, gathers
Close aging tank, product reservoir；Waste liquid reservoir is connected by infusion pump with reaction kettle；The reaction kettle is connected with polymerization aging tank
It connects, polymerization aging tank is connected with product reservoir.
Further, the waste liquid reservoir is additionally provided with administration device and metering chemicals feed pump；Administration device passes through metering dispensing
Pump is connected with waste liquid reservoir；The reaction kettle is equipped with heating device；
The reaction kettle is also connected with oxidant throwing device；
The polymerization aging tank is also connected with PH detection device and measures the alkali liquor storage tank that chemicals feed pump is connected with by lye.
Further, other inorganic waste liquids materializing strategy systems mainly include PH adjustment pond, coagulation reaction tank, flocculation reaction
Pond, inclined-tube sedimentation tank, intermediate pool, mechanical filter, sludge concentration tank, filter press, filtered water reservoir, triple effect evaporator.
Further, the waste water treatment system specifically includes using anaerobism, aerobic, precipitating biochemical processing process
Inner electrolysis, neutralization reaction, coagulating sedimentation, filters pressing, comprehensive wastewater adjusting, anaerobism, anoxic, it is aerobic, precipitating, clear water stand, readjustment,
Coagulating sedimentation, filters pressing and neutralization.
Beneficial effect：
To realize that target is disposed in recycling, minimizing and the innoxious processing of hazardous waste, to the danger for having utility value
Dangerous waste should be paid the utmost attention to comprehensively utilize, and make its recycling.Hazardous waste that is should not recycling but can burning can be adopted
Use burning disposal.The disposition of industrial dangerous waste centralized burning can effectively solve above-mentioned many environmental problems.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that hazardous waste of the present invention collects disposing technique structural block diagram.
Fig. 2 is rotary kiln solid feeding system structural block diagram of the present invention.
Fig. 3 is rotary furnace liquid feed line structural block diagram of the present invention.
Fig. 4 is that hazardous waste of the present invention collects disposing technique flow chart.
Fig. 5 is heating power, fuel, quick NOx output and fire box temperature relational graph of the present invention.
Fig. 6 is waste hydrochloric acid materializing strategy system structure diagram of the present invention.
Fig. 7 is inorganic waste liquids materializing strategy system flow chart of the present invention.
Fig. 8 is waste water treatment system process flow diagram of the present invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
It is only to be not intended to limit the invention merely for for the purpose of describing particular embodiments in terminology used in the present invention.
It is also intended in the present invention and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the present invention
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the scope of the invention, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
The present invention will be described in detail by way of examples below.
Embodiment 1
As shown in Figure of description 1-4, a kind of hazardous waste collection disposing technique, including dangerous waste incineration treatment process
With industrial wastes materializing strategy technique.
The dangerous waste incineration treatment process include charging processing system, burning processing system, residual neat recovering system with
And flue gas purification system.The charging processing system, burning processing system, residual neat recovering system and flue gas purification system are successively
Connection.
The dangerous waste incineration treatment process can be used to handle bulk solid waste, solid waste, semisolid waste
And liquid wastes.
The charging processing system includes rotary kiln solid feeding system and rotary kiln liquid feed line.
The rotary kiln solid feeding system includes：Crusher, sorting device, compatibility container, mixing hole, grab bucket charging are set
It is standby.
Crusher, sorting device are connected with compatibility container respectively, and compatibility container is connected with mixing hole, and mixing is cheated and grabbed
Bucket apparatus for feeding is connected.
The grab bucket apparatus for feeding includes driving grab bucket, tipping bucket feeder, double disc hydraulic packing valve, chute.
Crusher is used to be crushed bulk solid waste.Sorting device is used to handle solid waste, semisolid waste.
Embodiment 2
Referring to Fig.1-4, the burning processing system includes rotary kiln and dual firing chamber.The one outlet of rotary kiln and dual firing chamber
An entrance be connected.The entrance of rotary kiln respectively with the grab bucket apparatus for feeding of rotary kiln solid feeding system, rotary kiln liquid
Body feed system is connected.
Bulk solid waste carries out break process by crusher first, and solid waste, semisolid waste pass through sorting office
Reason.Treated that solid waste, semisolid waste carry out in compatibility container with sorting is carried out for the bulk solid waste being broken
The material of hybrid combination formation various characteristics.The material of various characteristics enters behind mixing hole through driving grab bucket mixing match, then
Material is sent to hopper at the top of chute by automatic tipping bucket feeder, successively opens double disc hydraulic valve, material is fallen through chute
The inertia of lower generation enters in rotary kiln.
The rotary kiln liquid feed line includes waste liquid tank, filter and preheater.The waste liquid tank, filter with
And preheater is sequentially connected by waste-solution line.The rotary kiln liquid feed line is additionally provided with waste drains pump, liquid waste spray gun, atomization
Device and compressed air system.
The pressure of waste water utilization waste drains pump and the pressure of compressed air system mix and pass through mist after being preheated by preheater
Rotary kiln is sprayed into through liquid waste spray gun after change device realization Waste liquid atomization, completes the feed operation of waste liquid.
The waste-solution line uses sus316L material, has fully considered the corrosivity of waste liquid；And it will be in waste liquid with filter
Solid particulate matter removal, solve the problems, such as plug nozzle.
The rotary kiln of the burning processing system and dual firing chamber are connected with daily oil tank.Daily oil tank provides burning disposal system
Auxiliary fuel used in the burning process of system, the preferred light diesel of auxiliary fuel.
The main function of rotary kiln is to dry, be pyrolyzed, burning various chemical materials, since chemical material compactness is good, one
As the type of furnace be difficult to dry and burn thoroughly, rotary kiln is constantly rotated using itself kiln body, seethes material ceaselessly in kiln, with cigarette
Gas and oxygen come into full contact with, and effectively eliminate organic matter and poisonous and harmful substance in waste.
Rotary kiln is the widely applied burning facility of International Industry waste process field, burns the city in field in industrial waste
The National Industrial waste treatment technique political affairs that field occupation rate is 85% or so and the Department of Science and Technology of China and State Environmental Protection Administration are issued
The incinerator type of furnace recommended in plan.
Preferably, the volume 95.6m3 of the rotary kiln, rotary kiln length 14m, rotary kiln outer diameter 3.6m, rotary kiln internal diameter
2.95m, 2 ° of rotary kiln gradient, rotary kiln revolving speed 0.5-2.5r/min, rotary kiln flue gas exit temperature >=850 DEG C, institute
It states residence time of material in rotary kiln and is more than or equal to 60min.
The rotary kiln has the following advantages：
1. incinerating solid waste, liquid, colloid, gas simultaneously, adaptable to incinerated matter；
2. burning material seethes advance, three kinds of heat transfer types simultaneously deposit a furnace, and heat utilization efficiency is higher；
3. being driven, mechanism is simple, and maintenance of equipment is simple；
4. pair incinerated matter shape, water content requirement be not high；
5. making the basic after-flame of hazardous waste up to the high temperature of nearly 1 hour residence time and 850 DEG C or more in rotary kiln；
The strong gas mixing of dual firing chamber makes imperfect combustion object completely burned in flue gas reach the required high temperature of harmful components decomposition
(1100 DEG C), high-temperature region flue gas total residence time are >=2 seconds；It not only burns waste residue to grill thoroughly to the greatest extent, also avoids or reduce from source
Generate the operating condition area of dioxin；
6. good seal approach and combustion chamber draft guarantee that pernicious gas does not leak；
7. operation rate is high, year, running rate was generally up to 90%；Convenient operating maintenance；
8. adding material turnover device in rotary kiln, incinerator is expanded while improving firing efficiency, waste is fitted
Ying Xing.
The rotary kiln is also connected with mucking machine, and the clinker that rotary kiln generates is discharged by mucking machine.
The dual firing chamber is the flue gas combustible component for burning rotary kiln not and harmful substance completely burned and thoroughly decomposes,
And flue-gas temperature is always ensured that at 1100 DEG C or so, rotary kiln flue gas comes into full contact with oxygen at high temperature, has the stagnant of abundance
Stay the time.
For the safety for guaranteeing system, explosion-protection equipment is equipped at the top of dual firing chamber.Even if detonation occurs in combustion,
Furnace pressure can be also released by explosion proof door dump flue gas, and safety accident will not occur.In addition at the top of dual firing chamber
It is additionally provided with dump chimney, in power failure or emergency, the starting valve of emergency chimney vent valves is automatically opened,
Discharge inner flue gas of the stove orderly, in order to avoid high-temperature flue gas damage cloth bag and remaining equipment.
The dual firing chamber has the following advantages：
1. combustion flame, by flux, promotes oxidation in combustion furnace.
2. incineration temperature is controlled at 1100 DEG C or more.
3. designing its residence time is 2 seconds or more, harmful foul smell and multi chlor compound are thoroughly decomposed.
Preferably, the flue-gas temperature of the dual firing chamber is 1100 DEG C, and the high-temperature area residence time of the dual firing chamber is greater than
3S。
Secondary combustion-supporting wind makes flue gas form vortex in dual firing chamber simultaneously, strengthens the disturbance of flue gas, substantially increases burning
Efficiency improves the destruction rate of harmful substance.
It further include aid fuel combustion system in the incineration system.The aid fuel combustion system is fuel system,
Fuel system is the important component of incineration system, is the essential condition that Industrial Solid Waste realizes igniting, auxiliary burner hearth heating.It is excellent
Choosing, fuel system is daily oil tank.
The fuel oil type of the fuel system be light diesel fuel, winter temperature it is lower must according to local circumstance select-No. 10~-
No. 20 diesel oil, No. 0 diesel oil can be used in summer, but the Lower heat value of diesel oil cannot be less than 10000Kcal/kg.
The kiln hood of the rotary kiln sets a start-up burner, and the dual firing chamber configures an auxiliary heating burner.
The fuel-displaced gravity flow of daily oil tank enters the burner of rotary kiln, dual firing chamber, and enters respective surge tank.
The burner is import integration composition, i.e., the oil pump of burner and atomizing fan is combined together and is closed
The unit form of reason distribution oil-gas ratin, can be adjusted, it is ensured that incinerator according to operation conditions of the incineration temperature to burner
Good Incineration circumstances.
Start-up burner is to make to enter set by the solid waste kindling of rotary kiln, and in startup stage, it, which is also risen, improves kiln temperature extremely
It can feed temperature.When rotary kiln incineration case of fire is good, radiant heat can make waste material catch fire, then burner can deactivate.
Auxiliary heating burner arrangement is in dual firing chamber, to assist fuel gas to continue to burn and reach 1100 DEG C as early as possible, especially
, when fuel combination calorific value is lower, auxiliary burner, which must be thrown, is enough to ensure that dual firing chamber's outlet temperature, when fuel combination calorific value for it
Height can deactivate auxiliary burner according to dual firing chamber's outlet temperature situation.
The rotary kiln connects once combustion-supporting wind system.
The rotary kiln is individually furnished with air blower, frequency control.
The air feed point of the combustion-supporting wind system of the rotary kiln is located at kiln hood end, air blower air draught between storing at the top of hopper
Cover air-breathing, effectively removes the peculiar smell in workshop in this way, then blast it is combustion-supporting in incinerator, air inlet set silk screen cover prevent waste into
Enter.
Rotary kiln air feed point is located at kiln hood end, and main function is to provide a certain amount of air assisted dangerous waste to ignite, burn.
First air is extracted Ye Shi waste storage area formation negative pressure and foul smell simultaneously and is not escaped by extracting in waste storage area.
The rotary kiln is additionally provided with cooling air system, and the cooling air system is located at rotary kiln tail portion, effect be in order to
Prevent rotary kiln tail portion steel plate from aoxidizing deformation at high temperature, it is ensured that the operation steady in a long-term of rotary kiln.
Dual firing chamber is individually furnished with air blower, frequency control.
The secondary combustion-supporting wind of air blower blasts dual firing chamber, can break up concurrent flow flue gas, disturbs flue gas sufficiently with Secondary Air,
For fuel gas provides oxygen and continues to burn, flue-gas temperature and burnout rate are improved rapidly.Effective Secondary Air angle and direction
Design can more improve turbulivity of the high-temperature flue gas in dual firing chamber.
The inner liner of rotary kiln uses lightweight thermal insulation brick and corundum-mullite abrasive brick, and dual firing chamber's liner uses lightweight
Heat insulating casting material and corundum-mullite castable, they have the spies such as fire resistance good, reheat linear change is small, good thermal shock stability
Point.
Embodiment 3
Referring to Fig.1-4, dual firing chamber is connected with residual neat recovering system.The residual neat recovering system includes waste heat boiler, preferably
Ground, the waste heat boiler are vertical membrane wall waste heat boiler.
The flue gas that dangerous waste waste is generated through high temperature incineration enters vertical membrane wall waste heat boiler, input gas temperature about 1050
DEG C, 500-550 DEG C of flue gas exit temperature, waste heat boiler uses vertical membrane wall structure, can reduce in flue gas dust to waste heat pot
The influence of steam generator in furnace.
Flue gas heat is taken away using the water in steam generator inner conduit, the steam of 1.0MPa can be used as other dresses in factory
Set use.Heat boiler outlet temperature controls between 500-550 DEG C.Waste heat boiler need to be equipped with liquid level and show and periodically and continuous
Blowdown apparatus, and there is the platform staircase for facilitating operation.
Preferably, the rated capacity of the steam generator is 5000Kg/h；The nominal steam of the steam generator
Pressure is 1.0MPa；The saturated-steam temperature of the steam generator is 170 DEG C；The feed temperature of the steam generator is 20
℃；The input gas temperature of the steam generator is 1050 DEG C；The exhaust gas temperature of the steam generator is 500-550 DEG C；
The blowdown rate of the steam generator is 2%.
The melded system of the waste heat boiler connection water carries out water to waste heat boiler by the water that melded system softened
Supplement.Waste heat boiler is additionally provided with steam utilization system.
Embodiment 4
Referring to Fig.1-4, the waste heat boiler is connected with flue gas purification system.
The flue gas purification system capital equipment includes sequentially connected half dry type chilling tower, neutralization reaction tower, level-one cloth
Bag dust collector, second level bag filter, air-introduced machine, level-one spray absorber, second level spraying filler absorption tower and chimney.
The half dry type chilling tower is connected with lye configuration device.The neutralization reaction tower is connected with screw(-type) feeder device
And calcium hydroxide adsorbent equipment, activated carbon adsorption device.Level-one bag filter, second level bag filter are connected with air pulse
Device.
Waste heat boiler is connected with half dry type chilling tower, and the boiler export high-temperature flue gas rapid cooling of waste heat boiler is half-dried
It is completed in formula chilling tower.About 500-550 DEG C of the temperature of the boiler export high-temperature flue gas, half dry type chilling tower inside is equipped with resistance to
Corrode castable.The angle of spouting liquid and spray gun that half dry type chilling Deethanizer design is needed according to cooling determines.Preferably, half dry type
The amount of water sprayed 3080-3520kg/h that chilling tower needs selects 55 ° of spray gun atomization angle.
Using the type of cooling based on spray sig water, the characteristics of according to various nozzles, this engineering uses two Fluid sprayers, i.e.,
Water is atomized by compressed air.
It uses the NaOH lye of 3%-5% or so to purify absorbent in half dry type chilling tower, clear water, flue gas can also be used
Enter in absorption tower from top, is sufficiently mixed in nozzle lower zone flue gas and the absorbent lye of atomization.First stage：Flue gas
It is mixed in Ta Nei with NaOH solution droplet, acid-base neutralization reaction occurs for the sour gas in flue gas and NaOH solution；Second stage：
The heat of flue gas evaporates the moisture in lye droplet, and lye and smoke reaction product become solid particulate matter, these
Grain object is attached in the lower part and subsequent sack cleaner of tower in cloth bag surface, and it is anti-that chemistry occurs with gaseous pollutant again
It answers, improves total pollutant purification reaction efficiency.
In chilling tower, spraying system can according to exit gas temperature variation automatic adjusting atomizer spouting liquid,
Guarantee that chilling tower outlet temperature can be maintained in an appropriate temperature range.When work, lye is pressurized by filter filtering, water pump,
Atomizer is sent into after adjusting pressure and flow by regulating system again；Due to there is compressed air atomization in atomizer, lye is by mist
It is melted into very tiny particle, atomizing particle evaporates rapidly in high-temperature flue gas, absorbs the amount of heat of flue gas, keep flue gas rapid
Temperature is reduced simultaneously to maintain in certain temperature range, when working range of the exit gas temperature not in setting, chilling system meeting
The relevant parameters such as pressure of supply water, spouting liquid are automatically adjusted, so that flue-gas temperature be made to guarantee in working range, these functions are in phase
It closes and is realized in cyclelog." cross and spray " and " owing spray " phenomenon will not occur.
In addition to this, system be also provided with chilling pump discharge pressure it is excessively high be protected from the dry operating of chilling pump, filter exists
Several functions such as On line inspection cleaning under working condition.Especially when atomizer does not work in chilling tower, devise corresponding
Measure will not enter spray nozzle clogging spray orifice with the dust guaranteed in flue gas.
The input gas temperature of the chilling tower is 550 DEG C.The exit gas temperature of the chilling tower is 200 DEG C.It is described
The inlet water temperature of chilling tower is room temperature.The water loss 3080-3520Kg/h of the chilling tower.The double flowing nozzle of the chilling tower
Compressed air consumption, pressure 0.45Mpa, 6-8Nm3/min.55 degree of the double flowing nozzle jet angle of the chilling tower.The chilling
The flue gas chilling period of tower is less than or equal to 1s.The velocity of flue gas 1m/s of the chilling tower.
The nozzle of the half dry type chilling tower selects heat-resisting, good corrosion resistance SUS316L material.
Good thermal shock stability, the mould material that chemical stability is good, wear-resisting are used in the half dry type chilling tower, simultaneously
There is high acidresistant property.
The neutralization reaction tower is the consersion unit that configuration is had to using half-dried technique, one side pulverized limestone and active carbon
Adsorption reaction is completed in tower, another aspect neutralization reaction tower can effectively remove water phenomenon in flue gas, cloth is effectively guaranteed
The service life of bag.
Due to usually containing the hazardous materials such as certain density bioxin, heavy metal in incineration flue gas, and heavy metal contaminants
Evaporation in burning process, therefore be captured and remove as the reduction heavy metal of flue-gas temperature condenses into shot-like particle.It is molten
The point lower heavy metal element of temperature is unable to fully condense, but will form under ash surface catalytic action melting temperature it is higher and
It is easier to the oxide or chloride of condensation, especially mercury and cadmium is largely adsorbed on fly ash granule and is captured down.Therefore
Consider to adsorb flue gas Zhong bioxin and heavy metal by way of spraying into active carbon in system.Enter bag-type dust in flue gas
Before device, the active powdered carbon that granularity is 200 mesh or so is sprayed into neutralization reaction tower, into deduster after these active carbon powders it is same
Sample is trapped within cloth bag surface, and when flue gas passes through cloth bag, flue gas Zhong bioxin is purified because being tightly held by activated carbon.
Packed active carbon ships outside factory, active carbon is manually poured into active carbon storehouse, then the spiral shell from active carbon orlop portion
Conveyer is revolved, is accessed active carbon in neutralization reaction tower with high-voltage tube (wear-resisting) by pressure-air by venturi feeder sleeve, it is right
Flue gas flow direction spray into, disseminate it in air-flow by flue gas stream, in fume pipe extend both time of contact, absorption weight
Metal is Ji the active carbon particle of bioxin is finally attached on bag-type duster filtering bag wall, and can also continue to carry out in absorption flue gas
Then heavy metal is fallen into ash bucket Ji bioxin with sack cleaner deashing, fall ash with deduster and be discharged together.
Active carbon is a kind of newer high-efficiency adsorbent.Utilize the porosity and adsorption capacity of active carbon, adsorbable cigarette
Bioxin and other hydrocarbons in gas.Its range of micropores is in 0.5-1.4mm, large specific surface area, to various organic and nothing
Organic matter, heavy metal ion in machine gas, aqueous solution etc. have biggish adsorbance and the faster rate of adsorption, adsorption energy
Power is 1~10 times higher than general active carbon, and 40 times are especially higher by than granular activated carbon to the adsorbance of some odorants
Left and right.
The feeding device sprayed into system for cleaning fume using calcium hydroxide, absorbent device are arranged in chilling tower and cloth
It between bag dust collector, is mixed in absorbent equably in flue gas, and is deposited in bag filter bag wall, form filter cake, make
The absorbent of deposition continues to absorb gaseous pollutant in flue gas.Using calcium hydroxide neutralization reaction ability, it is fixed that calcium hydroxide powder passes through
Amount charging gear pneumatic transmission enters neutralization reaction tower, and gas-particle two-phase meets, and highly turbulent and gas, solid mixing is generated, so that flue gas
In sour gas come into full contact with and react with pulverized limestone, to remove sour gas again.After flue gas enters bag filter,
The complete calcium hydroxide powder of unreacted is attracted to cloth bag surface, continue adsorb harmful substance and with sour gas remaining in flue gas
Body is reacted.Reaction unit capital equipment includes lime storage warehouse, quantitative auger conveyor etc..
In addition pulverized limestone can effectively absorb the moisture in flue gas, prevent steam from cloth bag humidity being caused to paste bag, pulverized limestone storage
Tank, which uses, to cover to prevent the water vapour agglomeration in absorption air.
Basic chemical equation is as follows：
SO3+Ca(OH)2=CaSO4+H2O
SO2+Ca(OH)2=CaSO3+H2O
2HCl+Ca(OH)2=CaCl2+2H2O
2HF+Ca(OH)2=CaF2+2H2O
The level-one bag filter and second level bag filter are to be arranged in series.
In the cleaner, sack cleaner has more advantage, particularly suitable dry method or half compared to other cleaners
In dry-process deacidification technique, sack cleaner serves not only as the reaction dress of other harmful substances matter in cleaner, and removal flue gas
It sets, is the most critical equipment of vent gas treatment.
Burn the flue dust of generation, the product of sour gas neutralization reaction, and the lime dust etc. for not participating in reaction forms cigarette
Solid particle in gas, is removed by sack cleaner.Sack cleaner has very high efficiency of dust collection, up to 99.9%, very
To higher, can effectively be trapped especially for submicron particle.This feature removes very the particulate of heavy metal
Favorably.In addition more prominent for removing the effect of bioxin.Incineration flue gas Zhong bioxin, by good Combustion System,
Major part can be carried out decomposition, however, there is the possibility synthesized again under certain conditions.This project is by chilling tower to flue-gas temperature
Control, promptly cooled down between 550~200 DEG C, reduce and avoid the dangerous temperature zone that bioxin synthesizes again.In addition,
Active carbon is added, before sack cleaner to adsorb the substances such as flue gas Zhong bioxin, heavy metal.In sack cleaner,
Bioxin on submicron particle will be adsorbed on to be trapped.
The design and selection of sack cleaner will fully consider combustion product gases temperature, the need of humidity and dust physicochemical property etc.
It wants.This programme selects offline pulse dust cleaning deduster.Deduster works under negative pressure.Dusty gas from the lower part of deduster into
Enter, the dust of bulky grain passes through flow-stopping plate, is directly deposited to ash bucket.The air-flow of entire filter chamber from bottom to top, accelerates dust
Sedimentation reduces filter bag load, improves filter bag efficiency.Filter efficiency is high, and efficiency of dust collection is up to 99.9%, the dust-laden of purification gas
Concentration will be less than 10mg/m3.
Sack cleaner key equipment is filter bag material, and various countries are dedicated to the exploitation of filtrate technology, this work after the eighties
The pure PTFE+ film coating technique of Cheng Caiyong.It is allowed to smoke gas treatment, the disadvantages such as chemical attack, blocking and rupture have greatly improvement.Diaphragm type
Filter bag utilizes film surface, replaces a dirt cake function with the aperture of fine uniform structure, so that flue dust penetrance is almost equal to zero, due to thin
Membrane material skin-friction coefficient is low, hydrophobicity, temperature tolerance and anti-aging characteristic, has been allowed to excellent effect, when work inside filter material
Obstruction is not easily caused, is able to maintain the lower pressure loss, improves filter material service life, reduces operating cost.
Deashing uses high voltage pulse air blown, reasonable pulse spacing and pulse width and the good deashing of filter bag
Performance greatly ensure that the running resistance of equipment maintains a stable level, not exceed 1500Pa, while making flue gas
Treating capacity remain at a stable state, so that whole system be made to remain operating in the environment of an efficient stable.
The air-introduced machine uses frequency control, can adjust rotation speed of fan as needed, can energy saving 35%.If noise reduction fills
It sets, reduces equipment noise.Flue gas through bag filter dust separation enters level-one spray absorber and second level spray column, passes through
Lye, gas turbulent flow is set to absorb remaining sour gas and harmful substance.
The tail gas absorption qualified discharge under harsh conditions can be met by absorbing Deethanizer design enough residence times and low flow velocity.
After the waste water that absorption tower generates enters circulatory pool and conditioning tank, recycling certain time is precipitated and is adjusted, so
After be sent to Sewage Disposal processing.
140 DEG C of the input gas temperature of the spray absorber.80 DEG C of the exit gas temperature of the spray absorber.
The gas residence time 8-9S of the spray absorber.The flue gas flow rate 1.5m/s of the spray absorber.
Effective effect of the invention：Removal about dioxin, heavy metal, nitrogen oxides, carbon monoxide
Following several control measure are generally taken in incineration of waste：
1) furnace high-temperature sufficiently decomposes；
2) chilling inhibition synthesizes again after furnace；
3) flue gas further purifies removal.
By the above measure, can stablize flue gas control in TEQ 0.1ng/Nm3.
Heavy metal and its compound in hazardous waste can be distinguish again according to boiling point and volatility.Part heavy metal
Boiling point be less than incineration temperature (1100 DEG C) therefore be easier to be evaporated in exhaust gas in burning, about 1700 DEG C of the boiling point of lead, big portion
Dividing will remain in clinker.
In recent years, it endangers caused by people escape into atmosphere heavy metal and payes attention to increasingly.The exhaust gas discharge of waste incinerator is outstanding
With heavy metals emission most by concern.Controlling the primary practice of concentration of emission is that waste separation work is performed in waste collection management
Make, the waste containing heavy metal, such as battery, fluorescent tube, insecticide, printing ink are first recycled.Remove removing heavy metals
Best mode be to be condensed volatile heavy metal by way of cooling, then removed with cleaner.The heavy metals such as Hg, Cd
Part exists in gaseous form in flue gas, other than collecting after the mode above by cooling is condensed, since discharge is wanted
The raising asked, this project take activated carbon injection method as needed, i.e. activated carbon is sent directly into flue by metering device and gives up
Gas Contact-sorption, then removed with bag-type dust collecting equipment.This programme designs removal rate 90~95%.
There may be NOx during dangerous waste incineration, and there are two types of Producing reasons：Heating power NOx and fuel NOx.
Heating power NOx Producing reason is that the N2 and O2 when incineration of waste temperature is more than 1300 DEG C in air can be synthesized
NOx.Since solid waste burning temperature is at 1100 DEG C or so, dual firing chamber's temperature is between 1100~1150 DEG C, at this time not
Heating power NOx can be generated.The link of development of heat NOx is cell burner, due to high temperature incineration, combustor flame temperature
It can exceed that 1300 DEG C, may at this time generate heating power NOx.In order to avoid the generation of heating power NOx, we are to combined type
Burner has carried out special designing：It is combustion-supporting using give up low-pressure delivery, low-pressure air atomizing, cold wind of liquid, by these three means
Control, reduces the generation of heating power NOx to the greatest extent in this way by about 1200 DEG C of the flame temperature of burner.
Temperature profile is generated referring to Fig. 5, Nox.NOx represents oxynitrides, for example it is nitrogen dioxide that X, which takes 2, NOx,.
Fuel NOx is due to generating when trash burning containing N, and this NOx cannot prevent completely, can only reduce production to the greatest extent
Raw, the means of control mainly have：It reduces waste containing N and enters furnace；Waste compatibility enters furnace；Waste homogenous combustion reduces local overheating.Through
These links are crossed, the generation rate of fuel NO_x also can be reduced largely.
The concentration that NOx can be reduced by the means of Combustion System, by above-mentioned link, the concentration of NOx can reach completely
To the design objective of 500mg/Nm3.
Due to inabundant completely burned in Rotation error, there are also high amount of CO, and this programme is in dual firing chamber's furnace
One burner is set in thorax, and combustion flame makes flue gas form swirling flow, makes CO and other reducibility gas, NH3、H2Deng in height
The lower further oxidation of temperature, ultimately generates N2、O2、CO2、H2O and NOx.
Embodiment 5
Industrial wastes materializing strategy technique master waste liquid to be processed includes spent acid, salkali waste and industrial comprehensive wastewater.Spent acid
Including waste hydrochloric acid and other spent acid.
According to the waste liquid type classification of processing, industrial wastes materializing strategy technique include waste hydrochloric acid materializing strategy system, its
His inorganic waste liquids materializing strategy system and waste water treatment system.
Contain the pickle liquor of a large amount of Fe2+, Cl-, H+ in waste hydrochloric acid, such pickle liquor belongs to hazardous waste.
Waste hydrochloric acid materializing strategy system includes pickle liquor production polyaluminium iron process, and the technique includes following step
Suddenly：
1) it aoxidizes：Purpose is that the Fe2+ in waste liquid is transformed into Fe3+, and oxidizer containing chlorine oxygen at a certain temperature can be used
Change.
2) it polymerize and is aged：Pickle liquor after above-mentioned oxidation uses alkali, it is preferable that uses NaOH, Ca (OH)2, adjust
To suitable pH, then polymerization at a certain temperature, ageing after little water is added, liquid polymeric chlorination iron product is obtained.
Pickle liquor is aided with the corresponding raw material of industry by the technique, has all been synthetically prepared into poly-ferric chloride, has not been given up
Liquid and exhaust gas, waste residue etc. " secondary pollution " generate.It can be used for sanitary sewage, doctor using the poly-ferric chloride that the technique produces
It is used in institute's sewage and various Industrial Wastewater Treatments as coagulant.
Referring to Fig. 6, the waste hydrochloric acid materializing strategy system includes waste liquid reservoir 1, infusion pump 4, reaction kettle 13, polymerization ageing
Pond 9, product reservoir 10.Waste liquid reservoir 1 is connected by infusion pump 4 with reaction kettle 13.The reaction kettle 13 with polymerize aging tank 9
It is connected, polymerization aging tank 9 is connected with product reservoir 10.
The waste liquid reservoir 1 is additionally provided with administration device 3 and metering chemicals feed pump 2.Administration device 3 by metering chemicals feed pump 2 with
Waste liquid reservoir 1 is connected.The reaction kettle 13 is equipped with heating device.
The reaction kettle 13 is also connected with oxidant throwing device 5.
The polymerization aging tank 9 is also connected with PH detection device 6 and measures the lye storage that chemicals feed pump 8 is connected with by lye
Tank 7.
By pickle liquor after Preliminary detection meets the requirements, it is transported to by groove tank car and passes through and measure throwing in administration device 3
Laggard investment waste liquid reservoir 1 is measured at Teat pipette 2, is equipped with partition 12 in 1 reservoir of waste liquid reservoir, is transported to reservoir after making as far as possible
Waste liquid and the pickle liquor being before transported in waste liquid reservoir 1 do not mix, and store the pickle liquor of certain time by corrosion resistant infusion
Pump 4 dozens, to after specified amount, closes infusion pump 4 into reaction kettle 13, opens the heating device of reaction kettle 13 under stiring, and control is anti-
Pickle liquor in kettle 13 is answered to reach certain temperature, it is then a small amount of that quantitative oxidant is added by oxidant throwing device 5 in batches, instead
, by reaction solution in reaction kettle 13 from flowing into polymerization aging tank 9, pH value should be monitored by PH detection device 6 to after a certain period of time
And the pH for polymerizeing liquid in aging tank 9 is adjusted to desired value, lye is added by the lye metering metering of chemicals feed pump 8, in certain temperature
The lower polymerization regular hour will obtain polyaluminium iron product, and poly-ferric chloride liquid is then transferred to product reservoir 10 and continues to gather
It closes, outward transport for sale.
Concrete building can be used in the waste liquid reservoir 1, and inner surface carries out preservative treatment.It measures chemicals feed pump 2 and uses corrosion resistant
Metering pump is lost, metering conduit uses ABS engineering plastics pipe.
The reaction kettle 13 also has anti-corrosion function with temperature automatically controlled, self- poking arrangement.
Oxidant in the oxidant throwing device 5 uses chlorine-containing compound, the oxidant can quickly and efficiently by
Fe2+ is oxidized to Fe3+, and can guarantee the abundance of polymerization stage amount of chloride ions.Oxidant metering adds few using pulvis batch
Measure throwing device.
The polymerization aging tank 9 enters in the pond for the reaction solution in reaction kettle 13 to be aged, pool volume 15m3,
Reaction solution enters during the pond, and lye is added and adjusts pH, after being then aged 2-3 hours in polymerization aging tank 9, transferred product
It is stored into storage pool 11.
Embodiment 6
Referring to Fig. 7, other described inorganic waste liquids materializing strategy systems mainly handle other spent acid and salkali waste other than hydrochloric acid.
Other inorganic waste liquids materializing strategy systems mainly take the treatment process of neutralization, filters pressing, evaporation to be handled.
Other inorganic waste liquids materializing strategy systems mainly include wastewater equalization pond, PH adjustment pond, coagulation reaction tank, flocculate instead
Ying Chi, inclined-tube sedimentation tank, intermediate pool, filter, sludge concentration tank, sludge chamber filter press, water tank with strainer, triple effect evaporation
Device.
The technological principle of other inorganic waste liquids materializing strategy systems is inorganic with other to neutralize spent acid using salkali waste
Waste water, remaining spent acid reuses lye or white lime carries out being neutralized to pH value 9~10, handles through filters pressing, makes overwhelming majority weight
Metal is removed.Filtrate enters comprehensive wastewater conditioning tank, is post-processed after merging with other pretreated waste water；It is heavy
Starch is transferred to sludge-tank, forms filter cake through filter press filters pressing and sends outside.
Reaction equation：
H++OH-=+H2O
MN++NOH-=M (OH) N ↓ M represents heavy metal ion
Specific processing technological flow is,
Sulfuric acid wastewater containing, nitric acid waste water, hydrofluoric acid wastewater and alkaline waste water are collected respectively through pipeline to sulfuric acid wastewater containing respectively
In tank, nitric acid waste water tank, hydrofluoric acid wastewater tank and alkaline waste water tank, quantitatively squeeze into wastewater equalization pond, be adjusted water and
The soda acid of water is homogenized and is neutralized.It is equipped with air stirring mixing arrangement in wastewater equalization pond, to prevent sludgd deposition, while also having
Sharp oxidative degradation organic matter.
The mixed waste liquor in wastewater equalization pond is pumped into PH by elevator pump to adjust in pond, the mixing into PH adjustment pond
Waste liquid adds NaOH or H2SO4, PH is adjusted to 6-9 or so, enters back into coagulation reaction tank, passes through dispensing PAC coagulant, PAC coagulant
For polymeric aluminum or ferrous sulfate etc., coagulant enters back into flocculation tank after carrying out coagulating, adds flocculating polymer herein
Agent PAM carries out flocculation reaction and forms alumen ustum, and rear waste water flows into progress muddy water precipitating in high-efficiency pipe chute settling tank and efficiently separates, sludge
Bottom is settled, supernatant effluent after precipitation flows into intermediate pool, and intermediate pool is the transition pond of rear class filtering, also conduct
PH adjusts pond again, by PH detector automatic feeding acid or alkali, to make sewage up to neutrality.
Sewage in intermediate pool is by dredge pump, using intermediate pool inner float ball liquid level, according to the high, normal, basic automatic of water level
Elevator pump is opened, sewage is evacuated to mechanical filter, removes water-borne glue body, particle, suspended impurity, heavy metal ion etc., water outlet
It is discharged into clear water and is discharged into filtered water reservoir.
Sewage in filtered water reservoir is by dredge pump, using intermediate pool inner float ball liquid level, according to the high, normal, basic automatic of water level
Elevator pump to be opened, sewage is evacuated to triple effect evaporator, is evaporated processing, the water after evaporation is discharged into reuse pool after condensing,
Carry out reuse.The evaporative crystallization body of generation, exclusion are recycled in vitro.
A self-priming blowdown recoil pump timing, which is arranged, in filtered water reservoir carries out periodically the mechanical filter in filtered water reservoir
Backwash.Mechanical filter backwash is drained into conditioning tank reprocessing.
The sludge of inclined-tube sedimentation tank is discharged into sludge concentration tank, is pumped after carry out gravity concentration, then by sludge screw pump
Into plate and frame filter press, sludge is made further to be dehydrated concentration, outward transport is handled after being pressed into dry cake.Filter press filtrate and sludge concentration tank
Interior overflow sewage comes back in prime wastewater equalization pond and is reprocessed.
It is counted with PH in the adjustment pond PH.
The filtered water reservoir is with filtering backwash water pump and evaporation elevator pump.
The working principle of the triple effect evaporator is：
Waste water is being pumped into preheater by charging, and the vapour-liquid two-phase entered in the first effect separator after preheated device heating enters
Oral sex interface, material liquid are equably heating inside pipe wall spiral flow from bottom to top through the first heating room in the first effect separator
It is dynamic.End is equipped with the boiling section that special vehicle repair major coexists, the static pressure of material liquid-vapor mixture in boiling section on the heaters
Make the elevation of boiling point of lower liquid, and solution is made only to be heated when helical flow without generating vaporization in heating tube, boil material
Vapour, liquid separation are completed into the first effect separation chamber, material after multiple natural style circulation, is completed preliminary dense in the first effect system
The feed liquid of contracting enters the second effect separator；
It is recycled in the second effect system into the material in the second effect with identical principle in the first effect and completes to evaporate
Concentration after material reaches design evaporability in the second effect, is continuously introduced into third effect crystallizer and continues in the second effect separator
Evaporative crystallization；
Material after the second effect concentration enters third effect, is evaporated concentration with same principle.
Crystallization is not generated in the first effect by design control material, and will be only concentrated in the second effect and third effect crystallizer
To supersaturation and crystallization is generated, influences heater heat transfer effect to prevent the Crystallization Plugging in material from heating tubulation, the present apparatus exists
Second effect and third effect it is ad hoc set forced circulation pump, to second effect and third imitate in material carry out forced circulation, adding material
Spiral flow velocity in hot device tubulation reaches >=2.0m/s.When the magma ratio in feed liquid is finally reached required concentration, generation grain size
Up to after the grain crystalline product of 100-120 mesh, crystalline solid is separated with saturation mother liquor through cyclone hydraulic separators, and mother liquor continues back at evaporation
It is evaporated in device, concentrate, which is separated to centrifugal separator, continues cooling separation, the mother liquor after completing separation to conditioning tank and raw wastewater
Enter vapo(u)rization system together, continue evaporation and crystallization, whole process forms a continuous cycle operation system.
Embodiment 7
Referring to Fig. 8, the source of the waste water of the waste water treatment system processing is mainly resource utilization plant effluent, materialization
Plant effluent, carwash and ground flushing water, the contaminated initial rainwater of plant area and sanitary sewage.
The waste water treatment system processing is using anaerobism, aerobic, precipitating biochemical processing process.Specific wastewater treatment system
System, including Inner electrolysis, neutralization reaction, coagulating sedimentation, filters pressing, comprehensive wastewater adjustings, anaerobism, anoxic, it is aerobic, precipitate, clear water it is quiet
It sets, adjust back, coagulating sedimentation, filters pressing and neutralization.
For realizing a kind of waste water treatment system of waste water treatment process, including organic comprehensive wastewater pond, Inner electrolysis pond, in
With reaction tank, coagulative precipitation tank and filters pressing pond, comprehensive wastewater conditioning tank, anaerobic pond, anoxic pond, aerobic tank, sedimentation basin, clear water
Stand pond, readjustment pond, coagulative precipitation tank, filters pressing pond and neutralization pond.
Waste water and waste emulsified mixture/oily waste liquor processed waste water after each workshop flushing waste water, organic wastewater materializing strategy
It is passed into organic synthesis wastewater disposal basin and forms composite waste, organic synthesis wastewater disposal basin is connected with Inner electrolysis pond, including composite waste
Electrolytic cell is added sulfuric acid and carries out Inner electrolysis processing, and by treated in Inner electrolysis pond, composite waste is passed through in neutralization reaction pond, in
With NaOH, Na are passed through in reaction tank2S carries out neutralization reaction processing, and the composite waste after reaction is passed through in coagulative precipitation tank,
PAC, PAM are added in coagulative precipitation tank and carries out coagulating kinetics, mud enters the progress filters pressing of filters pressing pond after coagulating kinetics
Processing, filters pressing pond is discharged in mud after filters pressing processing, and by filters pressing, treated that waste water is input in sedimentation basin continues place of settling
It manages, shunting processing mixed liquor is carried out after sedimentation basin progress precipitation process and is flowed back into feeding pond, clear water enters clear water reserviors, mud time
Flow to anoxic pond.
Mixed liquor enters comprehensive wastewater conditioning tank after coagulating kinetics, the mixed liquor of wastewater equalization pond enter anaerobic pond into
Row Anaerobic Treatment then sequentially enters anoxic pond, aerobic tank, sedimentation basin and clear water reserviors.
Meanwhile initial rainwater enters neutralization pond, coagulation/sedimentation basin.Upper layer mixed layer sequentially enters back after coagulation/sedimentation basin
Adjust pond, clear water reserviors；Next mud enters filters pressing pond and does filters pressing processing after coagulation/sedimentation basin, and mud does mud after filters pressing processing
The processing of outer committee, treated that mixed liquor reenters coagulation/sedimentation basin for filters pressing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of hazardous waste collects disposing technique, including dangerous waste incineration treatment process and industrial wastes materializing strategy work
Skill；The dangerous waste incineration treatment process includes charging processing system, burning processing system, residual neat recovering system and flue gas
Purification system；The charging processing system, burning processing system, residual neat recovering system and flue gas purification system are sequentially connected.
2. hazardous waste according to claim 1 collects disposing technique, which is characterized in that the feed system includes revolution
Kiln solid feeding system and rotary kiln liquid feed line, the burning processing system include rotary kiln and dual firing chamber；Rotary kiln
One outlet be connected with an entrance of dual firing chamber；The entrance of rotary kiln respectively with rotary kiln solid feeding system and revolution
Kiln liquid feed line is connected.
3. hazardous waste according to claim 2 collects disposing technique, which is characterized in that rotary kiln feeding-in solid body system
System includes：Crusher, sorting device, compatibility container, mixing hole, grab bucket apparatus for feeding；Crusher, sorting device respectively with compatibility
Container is connected, and compatibility container is connected with mixing hole, and mixing hole is connected with grab bucket apparatus for feeding；The grab bucket apparatus for feeding
Including the grab bucket, tipping bucket feeder, double disc hydraulic packing valve, chute of driving a vehicle.
4. hazardous waste according to claim 2 collects disposing technique, which is characterized in that
The rotary kiln liquid feed line includes：Waste liquid tank, waste drains pump, filter, atomizer, compressed air system；Waste liquid
Industrial wastes is filled in slot；Waste liquid tank, filter, waste drains pump, waste drains pump, compressed air system, atomizer, which are sequentially connected, to be connect.
5. hazardous waste according to claim 1 collects disposing technique, which is characterized in that
It further include aid fuel combustion system in the incineration system, auxiliary heating burner arrangement is in dual firing chamber.
6. hazardous waste according to claim 1 collects disposing technique, which is characterized in that the waste heat boiler is connected with cigarette
Gas purification system；
The flue gas purification system capital equipment includes that sequentially connected half dry type chilling tower, neutralization reaction tower, level-one cloth bag remove
Dirt device, second level bag filter, air-introduced machine, level-one spray absorber, second level spraying filler absorption tower and chimney；
The half dry type chilling tower is connected with lye configuration device；Waste heat boiler is connected with half dry type chilling tower.
7. hazardous waste according to claim 1 collects disposing technique, which is characterized in that industrial wastes materializing strategy technique
Including waste hydrochloric acid materializing strategy system, other inorganic waste liquids materializing strategy systems and waste water treatment system；The waste hydrochloric acid object
Changing processing system includes waste liquid reservoir (1), infusion pump (4), reaction kettle (13), polymerization aging tank (9), product reservoir (10)；It is useless
Liquid reservoir (1) is connected by infusion pump (4) with reaction kettle (13)；The reaction kettle (13) is connected with polymerization aging tank (9),
Polymerization aging tank (9) is connected with product reservoir (10).
8. hazardous waste according to claim 7 collects disposing technique, which is characterized in that
The waste liquid reservoir (1) is additionally provided with administration device (3) and metering chemicals feed pump (2)；Administration device (3) passes through metering chemicals feed pump
(2) it is connected with waste liquid reservoir (1)；The reaction kettle (13) is equipped with heating device；
The reaction kettle (13) is also connected with oxidant throwing device (5)；
Polymerization aging tank (9) is also connected with the lye that PH detection device (6) is connected with by lye metering chemicals feed pump (8)
Storage tank (7).
9. hazardous waste according to claim 1 collects disposing technique, which is characterized in that other inorganic waste liquids materializing strategies
System mainly includes PH adjustment pond, coagulation reaction tank, flocculation tank, inclined-tube sedimentation tank, intermediate pool, mechanical filter, dirt
Mud thickener, filter press, filtered water reservoir, triple effect evaporator.
10. hazardous waste according to claim 7 collects disposing technique, which is characterized in that the waste water treatment system is adopted
It is specifically useless including Inner electrolysis, neutralization reaction, coagulating sedimentation, filters pressing, synthesis with anaerobism, aerobic, precipitating biochemical processing process
Water adjusting, anaerobism, anoxic, aerobic, precipitating, clear water standing, readjustment, coagulating sedimentation, filters pressing and neutralization.
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