CN106066041B - Danger wastes pretreatment system - Google Patents
Danger wastes pretreatment system Download PDFInfo
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- CN106066041B CN106066041B CN201610621931.2A CN201610621931A CN106066041B CN 106066041 B CN106066041 B CN 106066041B CN 201610621931 A CN201610621931 A CN 201610621931A CN 106066041 B CN106066041 B CN 106066041B
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- danger wastes
- coarse powder
- powder material
- pretreatment unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/70—Blending
- F23G2201/702—Blending with other waste
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of danger wastes pretreatment system, including coarse powder material danger wastes pretreatment unit, solid-state danger wastes pretreatment unit, paste danger wastes pretreatment unit, extraordinary danger wastes pretreatment unit and liquid hazardous waste pretreatment unit, it is respectively used to coarse powder material danger wastes, solid-state danger wastes, paste danger wastes, extraordinary danger wastes and liquid hazardous waste are pre-processed, by these wastes through physical aspect shaping, Material Compatibility is arranged in pairs or groups, it is sent to incineration system after calorific value adjustment and carries out burning disposal.Danger wastes pretreatment system according to the present invention can will enter the advance unified physics form of material of incineration system and carry out compatibility and calorific value compatibility, so that material burns fully in incineration system, fuel stabilization and efficiency raising.
Description
Technical field
The present invention relates to a kind of processing systems of danger wastes, and system is pre-processed more particularly, to a kind of danger wastes
System.
Background technology
With the industrialized continuous development of modern society, the waste generated in plant produced especially danger wastes
It is increasing, hazardous waste is counted according to National Hazard waste register and is divided into more than 3000 kinds of 49 classes, wherein the overwhelming majority preferably uses
Burning mode carries out decrement treatment.
The precondition that material can thoroughly burn in stove is：1. it is relatively uniform to burn rate；2. Lower heat value is opposite
It is unified；3. violent detonation reaction cannot occur；
The physicochemical property fluctuation range of hazardous waste is larger, if the fluctuation range of quality is several milligrams~15 kilograms or so；
Moisture content fluctuation range is 0~70%；The fluctuation range of calorific value is the kilocalorie of 600 kilocalories~1000.And physical aspect is different, it is such as solid
When state, liquid, paste, powdery etc. and incompatible substance mixture, vigorous reaction occurs often, generates pernicious gas or detonation thing
Therefore.
Be simply mixed by the way of collocation is sent directly into incinerator burning at present using material, before entering incinerator not
It is targetedly pre-processed, causes burning effect unstable, burn-off rate is relatively low, causes that vent gas treatment difficulty is big, discharge is not easy
It is up to standard, the problem of environmental pollutions such as content of organic matter height to burn incompletely in lime-ash.
Invention content
The object of the present invention is to provide a kind of danger wastes pretreatment system, can overcome the prior art certain or
Certain defects.
The present invention specifically provides a kind of danger wastes pretreatment system, including coarse powder material danger wastes pretreatment list
Member, solid-state danger wastes pretreatment unit, paste danger wastes pretreatment unit, extraordinary danger wastes pretreatment unit
With liquid hazardous waste pretreatment unit, it is used for respectively to coarse powder material danger wastes, solid-state dangerous waste (that is, individually)
Object, paste danger wastes, extraordinary danger wastes and liquid hazardous waste are pre-processed, by these wastes through object
It is sent to incineration system after the shaping of reason form, Material Compatibility collocation, calorific value adjustment and carries out burning disposal.
Danger wastes pretreatment system according to the present invention can first unify material before material enters incineration system
Physical aspect and carry out compatibility and calorific value compatibility so that material burn in incineration system fully, stablize and efficiency improve,
And extraordinary danger wastes can be handled in a manner of simple, convenient and safety.
In one particular embodiment of the present invention, coarse powder material danger wastes pretreatment unit is for detaching coarse powder material danger
Solid-state danger wastes included in dangerous waste, the coarse powder material danger wastes pretreatment unit include that coarse powder material receives
Storehouse, sizing screen, coarse powder material belt conveyor and screenings feed bin, coarse powder material receive storehouse and are used to receive the coarse powder material that conveying comes, sub-material
Sieve for being sieved to coarse powder material, coarse powder material belt conveyor be used for after screening oversize and screenings carry out respectively it is defeated
It send, screenings is transported in screenings feed bin, and oversize is transported in solid-state danger wastes pretreatment unit by into one
Step processing.Further, coarse powder material danger wastes pretreatment unit further includes desiccation machine, for inorganic sludge substance into
Row drying and other treatment, the inorganic sludge substance by drying and other treatment are transported to coarse powder material and receive storehouse.Also further, coarse powder material
Danger wastes pretreatment unit further includes iron remover, and iron remover is arranged around the belt conveyor of conveying oversize, for removing
Iron included in oversize.The present invention can be used for by being pre-processed to coarse powder material by coarse powder material and other material groups
It closes with the physical aspect of unified material, and can easily carry out removing iron, improve burning effect.
In one particular embodiment of the present invention, solid-state danger wastes pretreatment unit is used for solid-state dangerous waste
Object is crushed, including elevator, crusher and agitating device, and elevator is used to promote solid-state danger wastes to crusher
In, for crusher for being crushed to the solid-state danger wastes supplied from elevator, broken solid-state danger wastes are logical
Agitating device is crossed to be stirred molding together with coarse powder material danger wastes and paste danger wastes and be transported in storage warehouse.
By the embodiment, solid waste can be broken into small solid-state danger wastes then with coarse powder material danger wastes and cream
Shape danger wastes are molded together, it can be made fully to be burned and secondary pollution will not occur.
In a preferred embodiment, the crusher of solid-state danger wastes pretreatment unit further includes dust-precipitator, for collecting
The dust generated in shattering process, and collected dust is transported to storage warehouse together with broken solid-state danger wastes
In.By the embodiment, generated dust can not be carried out to outer row, so as to the operating environment with good health.
In one particular embodiment of the present invention, lime feeding device is set before storage warehouse, is fed by the lime
Device mixes the lime from lime silo by measuring equipment with solid-state danger wastes, in presetting storage warehouse to be entered
The pH value of material.By adjusting the pH value of material, acid contaminant content is controlled, control burning process middle acid substance is to burning
The corrosion of equipment, and contribute to incineration tail gas up to standard.
In one particular embodiment of the present invention, paste danger wastes pretreatment unit includes heating device and filtering
Device, paste danger wastes are heated in heating device to dissolve paste danger wastes, filter for pair plus
Paste danger wastes after heat are filtered, by the paste danger wastes being in a liquid state and solid-state danger wastes and coarse powder
Material danger wastes are molded together.By paste danger wastes pretreatment unit as setting, plaster material can be become
For solid material, burns to help to facilitate and prevent secondary pollution.
In one particular embodiment of the present invention, extraordinary danger wastes pretreatment unit includes Subpackaging machine and suspends in midair defeated
Unit is sent, the extraordinary danger wastes after packing are passed through and hanged for dispensing extraordinary danger wastes by Subpackaging machine
It hangs supply unit to be transported in incineration system, suspention supply unit includes suspending case and the conveying device for conveying suspention case in midair.
By the suspention supply unit, easily the extraordinary danger wastes after packing can be transported in combustion system.
Preferably, the conveying device for being used to convey suspention case is suspended chain.
In one particular embodiment of the present invention, extraordinary danger wastes pretreatment unit further includes distributor, packing
Extraordinary danger wastes afterwards are assigned to by the distributor at predetermined intervals in suspention supply unit.It is distributed by being arranged
Device can be conveniently dispensed the extraordinary danger wastes dispensed at a set interval.
Preferably, distributor be turntable distributor, which includes multiple receiving chambers separated from one another, with
Receive that conveying comes in receiving chamber by the extraordinary danger wastes after packing.
In one particular embodiment of the present invention, liquid hazardous waste pretreatment unit is used for liquid dangerous waste
Object is filtered mixing, including receiver, blender, mulser, storage tank and measuring and dispensing system, and receiver is used to endanger to liquid
Dangerous waste is filtered, and blender is used to carry out mixture to filtered liquid hazardous waste to be then delivered in mulser
It is emulsified, mixed waste liquor of the storage tank for the different calorific values after temporary emulsification, measuring and dispensing system is for pressing mixed waste liquor
In metered injection to incineration system.By the way that the liquid hazardous waste pretreatment system is arranged, liquid hazardous waste can be made
It is easy burning disposal.
Including multiple storage tanks, it is respectively used to store the mixed waste liquor of different calorific values, such as including high, neutralization low heat value storage
Tank.
Preferably, it is introduced into crusher and is broken from the solid-state danger wastes filtered out in liquid hazardous waste
Broken processing.
In addition, the danger wastes pretreatment system is air-tight state and is furnished with ventilating system, also, ventilating system is also
Activated carbon adsorption device can be provided with.So as to ensure that pernicious gas is not excessive.
Description of the drawings
The present invention is further detailed with reference to the accompanying drawings and examples：
Fig. 1 is the general illustration according to the danger wastes pretreatment system of the present invention；
Fig. 2 shows the coarse powder material danger wastes pretreatment units in Fig. 1；
Fig. 3 shows the solid-state danger wastes pretreatment unit in Fig. 1；
Fig. 4 shows the extraordinary danger wastes pretreatment unit in Fig. 1；And
Fig. 5 shows the liquid hazardous waste pretreatment unit in Fig. 1.
Specific implementation mode
In conjunction with drawings and examples, the invention will be further described.These attached drawings only illustrate this hair in a schematic manner
Bright basic structure, therefore only show construction related to the present invention.
Fig. 1 generally shows the schematic diagram of danger wastes pretreatment system according to the present invention, includes mainly thick
Powder danger wastes pretreatment unit 1, solid-state danger wastes pretreatment unit 2, extraordinary danger wastes pretreatment unit 3
With liquid hazardous waste pretreatment unit 4, they are respectively used to coarse powder material danger wastes, solid-state danger wastes, spy
Kind danger wastes and liquid hazardous waste are pre-processed.
Herein, coarse powder material danger wastes refer to its most of material for being included size be less than or equal to 50 ×
50 × 80mm, such as particulate material or powder danger wastes；Solid-state danger wastes generally refer to size more than 50 × 50 ×
The solid-state danger wastes of 80mm.
Paste danger wastes are generally sticky semisolid, and feature is sticky strong and poor fluidity, most of to have
Irritant smell and have toxicity.The paste danger wastes of organic are relatively conventional, wherein the content of benzene, phenol and chlorine compared with
Height, such as paint.
It is in solid-state that there are also paste danger wastes under normal temperature state (20 DEG C or less), is presented after temperature is got higher
Mobility and becoming relatively is glued (such as softening at 30 DEG C), for example, essence, distillation residue.
Extraordinary danger wastes include solid-state danger wastes, liquid hazardous waste and the paste dangerous waste of special type
The characteristics of object etc., this substance is that chemical property is more active, is easily reacted with other materials, and has Strong oxdiative
Property, hypertoxicity or explosive, such as trivalent cobalt salt, peroxide, cyanide, perhalide etc., these material demand quilts
Isolation processing to avoid explosion or vigorous reaction occur with other materials.
Further below in conjunction with attached drawing, to each unit of the danger wastes pretreatment system of embodiments of the present invention
It is described in detail.
Fig. 2 shows coarse powder material danger wastes pretreatment units 1.The coarse powder material danger wastes pretreatment unit 1 is used
The a small amount of solid-state danger wastes included in separation coarse powder material danger wastes, such as the modeling that is contained in coarse powder material
The objects such as material, packing case.
The coarse powder material danger wastes pretreatment unit 1 includes that coarse powder material receives storehouse 11, coarse powder material belt conveyor 12, sub-material
Sieve 13, screenings belt conveyor 14, oversize belt conveyor 15 and screenings feed bin 16.
Coarse powder material receives storehouse 11 and is used to receive the coarse powder material danger wastes shipped from outside.Coarse powder material belt conveyor 12
(the coarse powder material belt conveyor is by climbing belt), which is used to receiving the coarse powder material received in storehouse 11 and being transported to be located at coarse powder material, divides
In elevator (not shown) before material screen (such as drum screen) 13, and coarse powder material danger wastes pass through the elevator
It is thus lifted in sizing screen 13.Sizing screen 13 is for sieving coarse powder material, and (it is useless to account for coarse powder material danger to screenings for fines
The major part of gurry) it is transported in screenings feed bin 16 via screenings belt conveyor 14, (coarse fodder only accounts for thick oversize
The sub-fraction of powder danger wastes) via oversize belt conveyor 15 and belt conveyor 21 to be transported to solid-state danger useless
It is handled and (is broken) again in gurry pretreatment unit 2.
Coarse powder material danger wastes pretreatment unit further includes desiccation machine (not shown), is used for inorganic sludge class object
Matter carries out desiccation (drying) and handles.Specifically, desiccation machine setting is before coarse powder material receives storehouse 11, for that will contain 70-80%
Moisture inorganic sludge substance carry out desiccation, the inorganic sludge substance by drying and other treatment be transported to coarse powder material reception
Storehouse 11.
Coarse powder material danger wastes pretreatment unit 1 further includes iron remover (not shown).The iron remover includes endless-belt,
The endless-belt is moved around oversize belt conveyor 15.Electromagnet is provided with above endless-belt, it will be in oversize
Iron be adsorbed onto on the endless-belt.When endless-belt runs to the top of oversize belt conveyor 15, will be sieved by magnetic force
Iron in upper object is adsorbed onto on endless-belt, when endless-belt runs to the lower section of oversize belt conveyor 15, due to magnetic force
It disappears, therefore the iron adsorbed falls from endless-belt and separately collected.
Fig. 3 is shown for Large Solid State danger wastes to be carried out with broken solid-state danger wastes pretreatment unit 2.
The solid-state danger wastes pretreatment unit 2 (is shearing in the present embodiment including elevator 22, crusher 23
Formula crusher, and it is set as two in total) and solid-state danger wastes belt conveyor 24.
Broken solid-state danger wastes are needed to want danger wastes by what compatibility calculated by warehousing system and fork truck
It seeks out, is supplied in shear crusher 23 and is handled by elevator 22, the grain of broken solid-state danger wastes
Diameter is less than or equal to 50 × 50 × 80mm.Broken solid-state danger wastes pass through 24 He of solid-state danger wastes belt conveyor
Summarize belt 25 to be transported in agitating device (not shown), and (is come from coarse powder material danger wastes in agitating device
Stored screenings in screenings feed bin 16) and paste danger wastes (heated dissolve after paste danger wastes)
It is molded into physical property together and the blocky or rodlike of size uniform is transported in storage warehouse 6 later.
The crusher 23 of solid-state danger wastes pretreatment unit 2 further includes dust-precipitator (not shown), broken for collecting
The dust generated in the process, and the collected dust is transported to storage warehouse 6 together with broken solid-state danger wastes
In and without outer row.
Coarse powder material danger wastes are transported to from screenings feed bin 16 according to the calorific value compatibility of Central Control Room and summarize belt 25.
Meanwhile before storage warehouse 6 (such as on agitating device) be provided with lime feeding device (addition lime it is presetting to play
The effect of pH value), the lime from lime silo 5 is passed through into metering according to the calorific value compatibility of Central Control Room by the lime feeding device
Equipment is added.
Although being not shown in figure, danger wastes pretreatment system according to the present invention includes paste danger wastes
Pretreatment unit.The paste danger wastes pretreatment unit includes mainly heating device and filter.
Paste danger wastes from warehousing system, which are transported to together with container in heating device, to be added
Heat.Heating device for example heats the container for being contained with paste danger wastes by electrically heated mode, to
The paste danger wastes in solid-state or semisolid in a reservoir will be held, and to become mobility strong and be not easy to contact it
Object forms cohesive liquid.
Then, the paste danger wastes being in a liquid state are poured into from container in filter.In the filter, to heating
Paste danger wastes afterwards are filtered to be separated by solid-liquid separation.The paste danger wastes being in a liquid state are transported to solid-state danger
It is carried out into together with solid-state danger wastes and coarse powder material danger wastes in the agitating device of dangerous waste pretreatment system
Type.Solid matter included in paste danger wastes is transported to the crusher in solid-state danger wastes pretreatment unit
Carry out break process.
Fig. 4 shows extraordinary danger wastes pretreatment unit 3, which includes point
Chartered plane 31,32 and suspention supply unit 7.Subpackaging machine 31,32 is used to that the extraordinary danger wastes for transporting and will to be concentrated to dispense
(be separately packaged into inner wrapping, such as be dispensed into small air-tight bottle or tank), and the inner wrapping after packing is extraordinary dangerous useless
Gurry is transported to by suspending supply unit 7 in midair in incineration system.
The inner wrapping special type danger wastes dispensed are stored at storage part 33.
Inner wrapping special type danger wastes are transported to by distributor 34 at predetermined intervals in suspention supply unit 7,
It is transported in incineration system and is burned via suspention supply unit 7 again.
In the present embodiment, distributor 34 is turntable distributor.The turntable distributor 34 includes multiple separated from one another
Receiving chamber, with receive in receiving chamber from storage part 33 convey come inner wrapping special type danger wastes.The turntable distributes
Device 34 is rotated with certain speed, and it is single that the inner wrapping special type danger wastes received are assigned to suspention conveying in batches
In member 7.
It is suspended chain supply unit to suspend supply unit 7 in midair in the present embodiment, it can also be other types of certainly
Supply unit.
It includes suspention case 71 and suspended chain 72 to suspend supply unit 7 in midair mainly.Suspended chain 72 carries out circulating with certain speed
It is dynamic.Suspention case 71 is suspended in suspended chain 72 to transport the packaging special type danger wastes come from the distribution of turntable distributor 34.
Inner wrapping special type danger wastes at storage part 33 are assigned to the process in suspention supply unit 7 such as
Under：Inner wrapping special type danger wastes are respectively delivered in each receiving chamber of turntable distributor 34；Turntable distributor 34 is taken
It is rotated with inner wrapping special type danger wastes；The speed of service of turntable distributor 34 is configured to the fortune with suspended chain 72
Scanning frequency degree is consistent, when to suspend the position where case 71 reaches turntable distributor 34 in midair when one of them, in turntable distributor 34
Entrained inner wrapping special type danger wastes are fairly fallen in from slide carriage in the suspention case 71, and it is extraordinary dangerous thus to carry out inner wrapping
Distribution in waste to suspention case 71.
Suspended chain 72 carries suspention case 71 and runs in an annular fashion, and when suspention case 71 reaches the kiln of incineration system
When at first 8, lance (not shown) is provided at kiln hood 8, which bumps against the lower part of suspention case 32 so that suspention case 71 turns over
Turn, to make inner wrapping special type danger wastes therein fall into kiln hood 8, then suspends case 71 in midair by gravity reduction, and after
Continuous run down transports inner wrapping special type danger wastes to recycle.
Fig. 5 shows liquid hazardous waste pretreatment unit 4.Liquid hazardous waste pretreatment unit 4 is used for liquid
State danger wastes are pre-processed, so that liquid hazardous waste is sufficiently mixed consequently facilitating burning.
The liquid hazardous waste pretreatment unit 4 includes mainly receiver 41 (being, for example, filtering tank), blender 42, breast
Change machine 43 and measuring and dispensing system 44.
Receiver 41 for liquid hazardous waste to be filtered for multiple times, such as four to Pyatyi filtering.By-pass filtration
For example, scalping net filtration, to filter out cloth and paper etc. included in liquid hazardous waste.The strainer example of secondary filtration
It is such as 50 mesh, to filter the silt etc. that liquid hazardous waste is included.The strainer of three-stage filtration is, for example, 100 mesh, to filter
Relatively crude substance.The strainer of level Four filtering is, for example, 200 mesh.
Its filter screen will take out and cleaned receiver upon completion of filtration, and safe waste liquid is then recycled to be filtered,
To ensure safety problem when operating.
It is introduced into crusher from the solid-state danger wastes filtered out in liquid hazardous waste and carries out break process.
It is introduced into blender 42 by filtered liquid hazardous waste and carries out mixture.
Liquid hazardous waste after mixture is introduced in mulser 43.It is useless to liquid danger in mulser 43
Gurry is emulsified, and particularly, liquid hazardous waste carries out high speed centrifugation movement in mulser, and molecule is cut to
It is emulsified.
Liquid hazardous waste (mixed waste liquor) after emulsification is temporary in storage tank 45,46 and 47, these three storage tanks
It is respectively used to the different liquid hazardous waste of temporary calorific value.It is transported in incinerator when from storage warehouse 6 and suspention supply unit 7
Material calorific value it is relatively low when, measuring and dispensing system 44 takes out liquid from the storage tank for storing high heating value liquid hazardous waste
Danger wastes carry out compatibility therewith, so that the calorific value of the material in incinerator is uniform, so as to realize that material fully fires
The purpose of burning, conversely, when the calorific value for being transported to the material in incinerator from storage warehouse 6 and suspention supply unit 7 is higher, metering
Delivery system 44 can take out liquid hazardous waste from the storage tank for storing low heat value liquid hazardous waste and carry out therewith
Compatibility.In addition, can also realize the compatibility of material calorific value by adjusting the dispatching speed of measuring and dispensing system 44.
The danger wastes pretreatment system is air-tight state and is furnished with ventilating system, and ventilating system is provided with activated carbon
Adsorbent equipment fully can prevent ambient enviroment to be contaminated so that pernicious gas will not be excessive.
The present invention danger wastes pretreatment in, for from outside transport come these coarse powder material danger wastes,
Solid-state danger wastes, paste danger wastes and liquid hazardous waste are carried out into sorting in advance in Central Control Room first
Survey and by Central Control Room to these danger wastes carry out heat compatibility so that with batch enter incinerator burned these
There is compatibility between material, to ensure the safety of burning process, while also to make each batch materials into incinerator
Calorific value have stability, so as to keep fully burning.
For the compatibility of material, following situations should be prevented by referring to two kinds and the mixing of the above danger wastes：It generates
Amount of heat or high pressure, generate flame, occur explosion, generate inflammable gas, generate toxic gas, violent polymerisation and
The dissolving of noxious material.Other than the compatibility between material, the compatibility between material and container also should ensure that.
Refer to that compatibility is carried out to material, so that the calorific value of material is as far as possible between certain for the stability of material calorific value
In the range of to reduce the dosage of auxiliary fuel.The calorific value of material not only influences the dosage of the auxiliary fuel of incinerator, can also shadow
Ring the processing capacity of incinerator.Calorific value is too low, needs to start auxiliary fuel system so that trash burning is complete, causes operating cost
Increase；Calorific value is too high, and incinerator furnace temperature is made to be difficult to control, and setting needs to limit furnace temperature with inert substance (excess air, water etc.),
Processing capacity is set to decline simultaneously.Therefore the calorific value of material needs to control in an appropriate range, ensures the warp of system operation
Ji is reliable.
When carrying out compatibility to material, it is also noted that following several situations：
1) content of acid contaminant is controlled.Control acid contaminant content with ensure incineration system normal operation and
The qualified discharge of tail gas.Halogenated organic not only influences the calorific value of waste, also influence trash burning after content of acid gas and
The operation of smoke processing system controls the unreasonable generation for also easily causing chlorine, corrosivity bigger.Meanwhile it should when operation
Detailed analysis is carried out to material, the hazardous waste high to those content of halogen, quantity is big should be burned uniformly as possible, and should be controlled whole
Body quantity.
2) content for controlling heavy metal, to ensure the normal operation of incineration system and the qualified discharge of tail gas when burning.
Organic heavy metal substance should control overall quantity and uniformly enter stove burning.Due to the toxicity characteristic of these wastes, bucket is generally used
The mode that shape waste enters stove is handled, and can be controlled in each content and number.
3) content of phosphorus is controlled.Phosphorus is mainly organic phosphorus compound in hazardous waste, burns the P2O5 of generation at 400-700 DEG C
The corrosion increased can be generated to metal, if not controlling the content of phosphorus, waste heat boiler service life can greatly shorten.
4) uncontrollable discharge of smell substance is reduced.For the hazardous waste that peculiar smell is larger, what can directly be burned should be reduced
Its compatibility operates.It not directly burns, strictly to control volatilization during its compatibility.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is done in the essential scope of the present invention should also belong to the guarantor of the present invention
Protect range.
Claims (4)
1. a kind of danger wastes pretreatment system, including coarse powder material danger wastes pretreatment unit, solid-state danger wastes
Pretreatment unit, paste danger wastes pretreatment unit, extraordinary danger wastes pretreatment unit and liquid hazardous waste
Pretreatment unit is respectively used to coarse powder material danger wastes, solid-state danger wastes, paste danger wastes, extraordinary danger
Waste and liquid hazardous waste are pre-processed, these wastes are arranged in pairs or groups through physical aspect shaping, Material Compatibility,
It is sent to incineration system after calorific value adjustment and carries out burning disposal；
Wherein, coarse powder material danger wastes pretreatment unit is dangerous for detaching solid-state included in coarse powder material danger wastes
Waste, the coarse powder material danger wastes pretreatment unit include that coarse powder material receives storehouse, sizing screen, coarse powder material belt conveyor and sieve
Lower material bin, coarse powder material receive storehouse and are used to receive the coarse powder material that conveying comes, and sizing screen is for sieving coarse powder material, coarse powder material
Belt conveyor be used for after screening oversize and screenings convey respectively, screenings is transported in screenings feed bin,
Oversize is transported in solid-state danger wastes pretreatment unit and is further processed；
Wherein, coarse powder material danger wastes pretreatment unit further includes desiccation machine, for carrying out desiccation to inorganic sludge substance
Processing, the inorganic sludge substance by drying and other treatment are transported to coarse powder material and receive storehouse；
Wherein, coarse powder material danger wastes pretreatment unit further includes iron remover, coarse powder material of the iron remover around conveying oversize
Belt conveyor is arranged, for removing iron included in oversize；
Wherein, solid-state danger wastes pretreatment unit is for being crushed solid-state danger wastes, including elevator, broken
Machine and agitating device, elevator are used to promote solid-state danger wastes into crusher, and crusher is used for being supplied from elevator
The solid-state danger wastes answered are crushed, and broken solid-state danger wastes pass through agitating device and coarse powder material dangerous waste
Object and paste danger wastes be stirred together be molded into physical property and size uniform it is blocky or rodlike after and be transported to storage
In storage；
Wherein, paste danger wastes pretreatment unit includes heating device and filter, and paste danger wastes are filled in heating
It is heated in setting to dissolve paste danger wastes, filter was for carrying out the paste danger wastes after heating
Filter, the paste danger wastes being in a liquid state are molded together with solid-state danger wastes and coarse powder material danger wastes；
Wherein, extraordinary danger wastes pretreatment unit includes Subpackaging machine and suspention supply unit, and Subpackaging machine is used to endanger special type
Dangerous waste is dispensed, and the extraordinary danger wastes after packing are transported to incineration system by suspending supply unit in midair
In, suspention supply unit includes suspending case and the conveying device for conveying suspention case in midair；Conveying device for conveying suspention case
For suspended chain；Extraordinary danger wastes pretreatment unit further includes distributor, and the extraordinary danger wastes after packing pass through this point
Orchestration is assigned at predetermined intervals in suspention supply unit；Distributor is turntable distributor, which includes more
A receiving chamber separated from one another, to receive the extraordinary danger wastes after the packing that conveying comes in receiving chamber.
2. danger wastes pretreatment system according to claim 1, wherein solid-state danger wastes pretreatment unit
Crusher further includes dust-precipitator, for collecting the dust generated in shattering process, and by collected dust with it is broken solid
State danger wastes are transported in storage warehouse together.
3. danger wastes pretreatment system according to claim 1, wherein lime charging dress is arranged before storage warehouse
It sets, mixes the lime from lime silo with solid-state danger wastes by measuring equipment by the lime feeding device, with pre-
Adjust the pH value of the material in storage warehouse to be entered.
4. danger wastes pretreatment system according to claim 1, wherein liquid hazardous waste pretreatment unit is used
In being filtered mixing, including receiver, blender, mulser, storage tank and measuring and dispensing system to liquid hazardous waste, by
For being filtered to liquid hazardous waste, blender is used to carry out mixture to filtered liquid hazardous waste right glassware
After be transported in mulser and emulsified, storage tank is for the mixed waste liquor after temporary emulsification, and measuring and dispensing system will be for that will mix
Waste liquid is pressed in metered injection to incineration system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610621931.2A CN106066041B (en) | 2016-08-01 | 2016-08-01 | Danger wastes pretreatment system |
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| CN201610621931.2A CN106066041B (en) | 2016-08-01 | 2016-08-01 | Danger wastes pretreatment system |
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| CN106066041A CN106066041A (en) | 2016-11-02 |
| CN106066041B true CN106066041B (en) | 2018-10-12 |
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