CN107166397A - A kind of saliferous waste treatment equipment and method - Google Patents
A kind of saliferous waste treatment equipment and method Download PDFInfo
- Publication number
- CN107166397A CN107166397A CN201710537837.3A CN201710537837A CN107166397A CN 107166397 A CN107166397 A CN 107166397A CN 201710537837 A CN201710537837 A CN 201710537837A CN 107166397 A CN107166397 A CN 107166397A
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- China
- Prior art keywords
- incinerator
- waste treatment
- saliferous
- combustion chamber
- treatment equipment
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Classifications
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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
- F23G5/006—General arrangement of incineration plant, e.g. flow sheets
-
- 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
-
- 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
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
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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
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/80—Shredding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50001—Combination of two or more furnaces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Environmental & Geological Engineering (AREA)
Abstract
The invention provides a kind of saliferous waste treatment equipment, including：First incinerator, has the first opening with shaft, on shaft and can be passed through the nozzle of fuel and air；Inside, which has, can carry the fire grate containing salt waste；And combustion chamber, above first incinerator, the first opening is vertical with the combustion chamber is closely connected by it for first incinerator so that the solid-state combustion product in the combustion chamber can be unobstructedly fallen into first incinerator.Present invention also offers corresponding saliferous waste treatment method.The present invention is to thorough containing the Disposal of Contaminants in salt waste；Energy utilization rate is high；Contribute to the safety of equipment and safeguard and increase the service life.
Description
Technical field
The present invention relates to waste processing arts, specifically, containing salt waste contain salt waste the present invention relates to a kind of
Processing unit and method.
Background technology
In recent years, developing rapidly with industries such as chemical industry, oil, papermaking, food, medicine, agricultural chemicals, coking, abraum salt and
The discharge capacity increase containing salt waste such as saliferous solid waste.Both contain organic matter in abraum salt and saliferous solid waste, a large amount of salts are contained again, are given people
Class health and environment cause great threat.
Abraum salt and saliferous solid waste are various with originating, and species is various, complicated component, and poisonous and harmful substance content is high, environment
Harm is serious, the characteristics of processing financial cost is high, therefore intractability is big, in environmental requirement increasingly tighter today, to abraum salt
A stubborn problem has been processed into saliferous solid waste.
At present, the processing method of abraum salt mainly includes high-temperature calcination and landfill method etc..Wherein, high-temperature calcination is typically to adopt
Abraum salt is directly contacted with hot blast and carries out high-temperature calcination.But in this method, the time of contact of abraum salt and hot blast is not enough, it is impossible to have
Effect lifting temperature, causes the pollutant in abraum salt effectively to remove.Also, this method easily causes the pollutant in abraum salt
The component that a part is converted into complex shape is remained in hot blast so that pollutant is gas phase from solid phase transfer, is more difficult place
Reason.And to the high-temperature calcination of saliferous solid waste processing there is also it is similar with abraum salt processing the problem of.
On the other hand, burning method is also typically used to waste process field, but existing conventional burning facility and burning side
Method is not suitable for burning saliferous material.For example, more extensive Rotation error is used at present, because rotary kiln incineration is useless
When salt or saliferous solid waste, abraum salt or saliferous solid waste can be melted at high temperature, and salt and the rotary kiln body of heater melted is bonded and
Wall built-up, causes rotary kiln refractory material to come off and blocks kiln body, rotary kiln is not run, so Rotation error can not burn
Burn abraum salt or saliferous solid waste.
The content of the invention
The present invention is intended to provide a kind of abraum salt at least one the above-mentioned defect that can overcome prior art is containing at salt waste
Manage solution.
According to an aspect of the invention, there is provided a kind of saliferous waste treatment equipment, including：First incinerator, has
There is the first opening on shaft, shaft and the nozzle of fuel and air can be passed through；Inside, which has, can carry the fire grate containing salt waste；
Combustion chamber, above first incinerator, first incinerator is vertical with the combustion chamber tight by its first opening
Close connection so that the solid-state combustion product in the combustion chamber can be unobstructedly fallen into first incinerator.
In one embodiment, the combustion chamber has the combustion chamber inner chamber of column, and it has the horizontal stroke with plane-parallel
Section；Maximum cross section of first opening not less than the combustion chamber inner chamber of first incinerator.
In one embodiment, the combustion chamber has side wall, and the side wall, which slopes inwardly, causes the combustion chamber inner chamber
Cross section be gradually reduced from bottom to up.
In one embodiment, the side wall of the combustion chamber and the angle of horizontal plane are 87-89 °.
In one embodiment, the cross section of the combustion chamber inner chamber is rectangle.
In one embodiment, the nozzle of fuel and air can be passed through by having on the side wall of the combustion chamber.
In one embodiment, first incinerator has discharging opening；The saliferous waste treatment equipment also includes the
Two incinerators, the nozzle of fuel and air can be passed through by having with shaft, on shaft；Inside, which has, can carry the stove containing salt waste
Row；With charging aperture, it is arranged at the position corresponding to the discharging opening of first incinerator.
In one embodiment, the position of the charging aperture of second incinerator is less than the discharging of first incinerator
Mouthful.
In one embodiment, second incinerator has discharging opening；The saliferous waste treatment equipment also includes：The
Below one breaker, the discharging opening for being arranged on second incinerator；Material for receiving the second incinerator output
And primary fragmentation is carried out to it；First cooling conveying device, for receiving the material after the first breaker processing, cooling
Material is simultaneously transported to the second breaker；Second breaker, for receiving the thing that the first cooling conveying device is conveyed
Material, and second-time breakage is carried out to material；Second cooling conveying device, for receiving the thing after the second breaker processing
Material, cools down material and is transported to packing device；And packing device, for the material after cooling down and being broken to be packed.
In one embodiment, the combustion chamber has exhanst gas outlet；Also have the on the shaft of first incinerator
Two openings；The saliferous waste treatment equipment also includes cyclone separator, and it, which has gas access, gas vent and is provided with, unloads
The interface channel being connected with the second opening of first incinerator of material valve；The combustion chamber by its exhanst gas outlet with it is described
The gas access connection of cyclone separator.
In one embodiment, the saliferous waste treatment equipment also includes heat utilization device, and it has gas access,
The gas vent of the cyclone separator is connected with the gas access of the heat utilization device.
In one embodiment, the heat utilization device has gas vent；The saliferous waste treatment equipment is also wrapped
Gas cleaning plant is included, it has gas access, connected with the gas vent of the heat utilization device.
In one embodiment, the gas cleaning plant includes chilling tower, desulfurizing tower, the sack cleaner being sequentially connected
With smoke absorption tower.
According to another aspect of the present invention, a kind of saliferous waste treatment method is additionally provided, is comprised the following steps：
1) salt waste will be contained and send into the first incinerator, burned at a temperature of 600-800 DEG C；
2) first incinerator is burned the flue gas produced and enter combustion chamber, two are carried out at a temperature of 850-1100 DEG C
Secondary burning；
3) the second incinerator is sent into containing salt waste after first incinerator is burned, at a temperature of 800-850 DEG C
Secondary burning, solid salt or saliferous residue after being handled.
In one embodiment, the step 2) in, the solid-state combustion product produced by flue gas secondary combustion falls into first
In incinerator.
In one embodiment, the step 2) also include：Flue gas feeding cyclone separator after second-time burning is carried out
Gas solid separation, wherein solid content are fallen into the first incinerator.
In one embodiment, the step 2) in, formation -50Pa in combustion chamber during flue gas secondary combustion~-
260Pa negative pressure.
In one embodiment, the step 1) in, it is described that 10-30 is burned at a temperature of 600-800 DEG C containing salt waste
Minute；The step 2) in, the flue gas is second-time burning 3-8 seconds at a temperature of 850-1100 DEG C；And the step 3) in,
Burned containing salt waste at a temperature of 800-850 DEG C 10-30 minutes.
In accordance with a further aspect of the present invention, additionally provide it is a kind of based on above-mentioned saliferous waste treatment equipment containing salt waste
Saliferous waste treatment method, comprises the following steps：
1) salt waste will be contained and send into first incinerator, burned at a temperature of 600-800 DEG C；
2) first incinerator is burned the flue gas produced and enter the combustion chamber, enter at a temperature of 850-1100 DEG C
Row second-time burning.
In one embodiment, in described saliferous waste treatment equipment, first incinerator has discharging opening；It is described
Saliferous waste treatment equipment also includes the second incinerator, with shaft, and the nozzle of fuel and air can be passed through by having on shaft；It is interior
Portion, which has, can carry the fire grate containing salt waste；With charging aperture, it is arranged on the discharging opening corresponding to first incinerator
At position；Characterized in that,
The saliferous waste treatment method also includes：3) second is sent into after first incinerator is burned containing salt waste
Incinerator, the secondary burning at a temperature of 800-850 DEG C, solid salt or saliferous residue after being handled.
In one embodiment, having in described saliferous waste treatment equipment, on the side wall of the combustion chamber to be passed through
The nozzle of fuel and air；
The step 1) and step 2) in, by controlling to be passed through first incinerator from nozzle respectively and being passed through the combustion
Burn the fuel of room and the speed of air so that the temperature of the first incinerator is in 600-800 DEG C, and causes at least portion in combustion chamber
Subregional temperature is in 850-1100 DEG C.
Compared with prior art, the present invention has at least one following technique effect：
1st, to thorough containing the Disposal of Contaminants in salt waste.
2nd, energy utilization rate is high.
3rd, it can avoid occurring falling off after bulk matter aggregation wall built-up in vertical heater damaging the first incinerator part
Phenomenon, so as to protect the part of the first incinerator, contributes to safety and the maintenance of equipment, contributes to the use longevity of extension device
Life.
Brief description of the drawings
Exemplary embodiment is shown in refer to the attached drawing.Embodiment disclosed herein and accompanying drawing should be considered illustrative
, and it is nonrestrictive.
Fig. 1 shows structure of the saliferous waste treatment equipment provided according to one embodiment of the invention under main perspective
Schematic diagram；
Fig. 2 a show the outward appearance of the combustion chamber in one embodiment of the invention, and Fig. 2 b show combustion chamber shown in Fig. 2 a
Combustion chamber inner chamber；
Fig. 3 shows the main perspective schematic diagram of the saliferous waste treatment equipment of another embodiment of the present invention；
Fig. 4 shows the main perspective schematic diagram of the saliferous waste treatment equipment of another embodiment of the invention；
Fig. 5 shows the LOOK LEFT schematic diagram of the saliferous waste treatment equipment shown in Fig. 4；
Fig. 6 shows the block diagram of the saliferous waste treatment method provided according to one embodiment of present invention.
Embodiment
In order to more fully understand the application, refer to the attached drawing is made into more detailed description to the various aspects of the application.Should
Understand, these describe the description of illustrative embodiments simply to the application in detail, rather than limit the application in any way
Scope.In the specification, identical reference numbers identical element.Stating "and/or" includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in this manual, the statement of first, second grade is only used for a feature and another feature differentiation
Come, and do not indicate that any limitation to feature.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
Represented when being used in bright book exist stated feature, entirety, step, operation, element and/or part, but do not exclude the presence of or
It is attached with one or more of the other feature, entirety, step, operation, element, part and/or combinations thereof.In addition, ought be such as
When the statement of " ... at least one " is appeared in after the list of listed feature, the whole listed feature of modification, rather than modification
Individual component in list.In addition, when describing presently filed embodiment, use " can with " represent " one of the application or
Multiple embodiments ".Also, term " exemplary " is intended to refer to example or illustration.
As it is used in the present context, term " substantially ", " about " and similar term are used as the approximate term of table, and
The term of table degree is not used as, and is intended to explanation by recognized by those of ordinary skill in the art, measured value or calculated value
In inherent variability.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein be respectively provided with
The application one skilled in the art's is generally understood that identical implication.It will also be appreciated that term is (such as in everyday words
Term defined in allusion quotation) implication consistent with their implications in the context of correlation technique should be interpreted as having, and
It will not explained with idealization or excessively formal sense, unless clearly such herein limit.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 shows the structure under the main perspective of the saliferous waste treatment equipment provided according to one embodiment of the invention
Schematic diagram.With reference to Fig. 1, the saliferous waste treatment equipment includes the first incinerator 2 and combustion chamber 4.Wherein, the first incinerator 2 has
Having on shaft, shaft has the first opening and can be passed through the nozzle of fuel and air；Inside, which has, can carry the stove containing salt waste
Row；Combustion chamber 4 is located at the top of the first incinerator 2, and first incinerator 2 passes through its first opening and the combustion chamber 4
Vertical close connection so that the solid-state combustion product in the combustion chamber can be unobstructedly fallen into first incinerator.
In Fig. 1 example, the first incinerator 2 employs horizontal type structure, and combustion chamber 4 employs vertical structure, the first incinerator 2 and burning
The connection of room 4 forms the composite construction of an entirety.First incinerator 2 is in cuboid, the first opening and combustion chamber at the top of it
The direct UNICOM in bottom.Also, the opening shape and size at the top of the first incinerator 2 and the bottom cross section of combustion chamber 4
Shape and size match so that unobstructed between the incinerator 2 of combustion chamber 4 and first.In the present embodiment, abraum salt or saliferous are useless solid
The fire grate of the first incinerator 2 can be sent into by feeding device, is burned in the first incinerator 2.Flue gas produced by burning is upward
Ascension enters combustion chamber 4 and the second-time burning in combustion chamber 4.Solid-state combustion product in combustion chamber is natural under gravity
Ground will be fallen into the first incinerator 2 for example, salinity entrained in flue gas will be fallen into the first incinerator 2 by the first opening.Cause
This, the scheme of the present embodiment can avoid cohesive salinity from forming blocking in the junction of the first incinerator and combustion chamber.
Further, the inwall of the first incinerator 2 is made up of refractory material, and body of heater both sides set nozzle, can be by by nozzle
Gaseous fuel and/or liquid fuel are passed through in stove.Set fire grate on bottom of furnace body mounted tracks, track, fire grate in orbit can be with
Need to rotate clockwise or counterclockwise by technique.Drive device is installed, the chain that the rotation of fire grate passes through drive device outside stove
It is driven to realize, velocity of rotation can be adjusted according to the attribute of drive device.Feeding device 1 is arranged on the side of the first incinerator 2,
Its discharging opening is located at one end (such as the right-hand member shown in Fig. 1) of the first incinerator 2, and so untreated material (i.e. abraum salt) can fall
Onto the fire grate close to body of heater right-hand member, the fire grate right-to-left of drive device driving support loading material is moved and in this moving process
In be oxidized and burn, when the fire grate is moved into place in first 2 other end of incinerator, the material that fire grate is carried is by from below
Discharging opening is poured out.
In one embodiment, according to the characteristic of disposed salt and the characteristic of pollutant, the running temperature of the first incinerator 2 is set
600-800 DEG C is set to, the temperature range can be realized by adjusting the supply of fuel.By the drive for adjusting the first incinerator 2
Dynamic device, when can control velocity of rotation and the direction of fire grate, and then cause the stop for controlling abraum salt in the first incinerator 2
Between, realize that desired abraum salt is once burned.The preferred scope of time of once burning of abraum salt is 10-30 minutes.
Fig. 2 a show the outward appearance of the combustion chamber in one embodiment of the invention, and Fig. 2 b show combustion chamber shown in Fig. 2 a
Inner chamber.With reference to Fig. 2 a and 2b, combustion chamber 4 has the combustion chamber inner chamber of column, and it has the cross section with plane-parallel.The combustion
The cross section 17 of room intracavity bottom is burnt to match with the first opening of first incinerator.The first of first incinerator opens
Mouth is not less than the maximum cross section of the combustion chamber inner chamber, so that the solid-state combustion product in the combustion chamber can be unobstructed
Ground is fallen into first incinerator.In the present embodiment, the cross section of combustion chamber inner chamber is rectangle, and the both sides of combustion chamber 4 are set
It is equipped with liquids and gases fuel nozzle, two kinds of nozzle point 3 layers of arranged crosswises of upper, middle and lower (not shown in Fig. 2 a, 2b).In combustion chamber 4
The adjustment of incineration temperature realized by adjusting the quantity delivered of fuel.In the present embodiment, nozzle is positioned close to combustion chamber 4 and pushed up
The region in portion, to form temperature apparently higher than the second-time burning core of temperature in the first incinerator 2 in the region at the top of combustion chamber 4
Heart district.By adjusting the quantity delivered of fuel, the temperature of second-time burning core space can be adjusted arbitrarily between 850-1100 DEG C, burning
Run under -50~-260Pa tiny structures room so that gas residence time is 2-8 seconds.Air needed for burning is carried by blower fan
For, air duct is connected with fuel channel, by fuel nozzle enter combustion chamber in there is provided the air needed for burning.
In a burning process of the first incinerator 2, the pollutant part carbonization in abraum salt, another part is then from solid
Phase transfer is gas phase, forms usually said flue gas.These flue gases enter upward ascension the combustion being located on the first incinerator 2
Burn room 4.In combustion chamber 4, flue gas is by second-time burning.Temperature setting can be by the dirt of gas phase in the second-time burning of 850-1100 DEG C of degree
Thing is contaminated to decompose.At the same time, the solid particle formed after burning is fallen under gravity on the fire grate of the first incinerator 2, from
And it is easy to the recycling of salinity.
It is to be appreciated that what previously described combustion chamber cavity shape was merely exemplary, and it is nonrestrictive.In the present invention
Other embodiments in, the cross section of combustion chamber inner chamber can also be other shapes, each such as circle, triangle, square
Plant shape.
With reference to Fig. 2 a, 2b, in one embodiment, the combustion chamber 4 on the first incinerator 2 is using in introversion formula
Wall.Introversion refers to the inner surface of the side wall of combustion chamber 4 to centroclinal, and it is different from commonly used vertical inwall.
In the burning process of abraum salt, high-temperature flue gas makes incineration ashes be in molten condition, is easily attached to burner hearth (such as combustion chamber 4
Burner hearth) inwall on, cause encrustation.The burning of accompanying molten condition in inventor's research discovery, vertical inner wall
Product forms bulk sometimes, generally has certain altitude (e.g., from about more than ten meters high), the thing of this bulk due to combustion chamber 4
Coming off for matter is easily caused part (such as fire grate) damage of the first incinerator 2 of lower section.And inwall is designed using introversion formula, attachment
Material on inwall can be dripped or dropped in short grained form, so as to avoid dust wall built-up and accumulation, especially be avoided
The incineration ashes of molten condition are formed bulk and come off.Therefore, the introversion formula inwall of combustion chamber contributes to the safety and dimension of equipment
Shield, contributes to the service life of extension device.In a preferred embodiment, introversion formula inwall is relative to vertical direction (Fig. 2 b
In dotted line represent vertical direction) inclination angle be 2 °, the preferred scope at the inclination angle be 1 ° -3 ° (i.e. the side wall of combustion chamber and
The angle of horizontal plane is 87-89 °).
With reference to Fig. 1, in one embodiment, saliferous waste treatment equipment also includes the second incinerator 3, second incinerator
3 are used to receive the material after the stair oxidation of the second incinerator is burned, and second level oxidation burning is carried out to it.Second burns
Burn stove 3 and use rectangle structure, inside set refractory material, body of heater both sides set nozzle, can incineration gases fuel and/or liquid combustion
Material.Fire grate is set on bottom of furnace body mounted tracks, track, fire grate can be needed to turn clockwise or counterclockwise in orbit by technique
It is dynamic.Drive device is installed in the outside of second incinerator 3, and the rotation of fire grate is realized by the chain drive of drive device, rotates speed
Degree can be adjusted according to the attribute of drive device.
The running temperature of second incinerator 3 is 800-850 DEG C, and residence time of material 10-30 minutes is micro- in -10~-100Pa
Run under negative pressure.Abraum salt realizes the secondary burning of salt in the second incinerator 3.
In a preferred embodiment, the position of the second incinerator 3 is less than the first incinerator 2 so that the first incinerator 2
Discharging opening is higher than the charging aperture of the second incinerator 3.The material that such first incinerator 2 is exported can drop to the second burning naturally
In stove 3, and realize during dropping the agitation and upset of abraum salt so that be not fully oxidized in the first incinerator
Partly closer to the high-temperature area (such as combustion centre) of the second incinerator, and then make the second incinerator more efficient.First
The continuously-running of 2 and second incinerator of incinerator 3, also can intermittent duty.Under continuous running status, by the biography for adjusting fire grate
Velocity interpolation is sent to meet this respective residence time of material of two-stage oxidation incinerator.
Fig. 3 shows the main perspective schematic diagram of the saliferous waste treatment equipment of another embodiment of the present invention, and the saliferous gives up
Thing processing unit includes the first incinerator 2, the second incinerator 3, combustion chamber 4, the first destroyer 12, the first cooling conveying device
13rd, the second destroyer 14, the second cooling conveying device 15 and packing device 16.First destroyer 12 is placed in the second incinerator 3 and gone out
The lower section of material mouth, first destroyer 12 is sequentially connected the first cooling conveying device 13, the cooling conveying of the second destroyer 14, second
Device 15 and packing device 16, these devices are used to carry out cooling packing to the solid salt after burning disposal.
Fig. 4 shows the main perspective schematic diagram of the saliferous waste treatment equipment of another embodiment of the invention, and Fig. 5 is shown
The LOOK LEFT schematic diagram of saliferous waste treatment equipment shown in Fig. 4.With reference to Fig. 4 and Fig. 5, the saliferous waste treatment equipment also includes
Cyclone separator.The cyclone separator is circular configuration, inside sets central tube, and central tube is corrosion-and high-temp-resistant material, high temperature rotation
The discharge valve that heatproof is provided with the connecting pipe being connected with the first incinerator 2, the connecting pipe is set under wind separator.So,
The dust that high temperature cyclone separator is separated falls into the first incinerator 2 by discharge valve, and the flue gas of purification enters follow-up give up
Gas disposal equipment (concrete structure of follow-up waste gas treatment equipment not shown in Fig. 4 and Fig. 5).
In one embodiment, the saliferous waste treatment equipment also includes heat utilization device and gas cleaning plant.
Heat utilization device and gas cleaning plant are shown in Fig. 4 in the form of square frame, with reference to Fig. 4, heat utilization device includes the
One waste heat boiler 6 and the second waste heat boiler 7.Gas cleaning plant includes chilling tower 8, desulfurizing tower 9, sack cleaner 10 and flue gas
Absorption tower 11.
After flue gas carries out solid and gas separation through high temperature cyclone separator 5, gas temperature is high, is abundant recovery waste heat, sets the
The flue-gas temperature that one waste heat boiler 6 and the second waste heat boiler 7 carry out after the recovery of heat, recovered heat is about 550 DEG C or so.
Then, then through over-quenching tower its temperature is reduced to 200 DEG C or so in moment, such purpose is to prevent the life of bioxin
Into.Then enter sack cleaner 10 after carrying out desulfurization process through desulfurizing tower 9 and carry out dedusting, eventually pass absorption tower 11 and carry out dirt
Contaminate the absorption of thing, last flue gas qualified discharge.
Further, in one embodiment, it is additionally provided with air inducing in the sack cleaner 10 or smoke absorption tower 11
Machine.Because exhaust-gas treatment passage is connected with the exhanst gas outlet of the combustion chamber 4, therefore the burning can be adjusted using air-introduced machine
Negative pressure in room 4, makes up to -50~-260Pa state.
Hereinbefore the various pieces of saliferous waste treatment equipment provided by the present invention are done with reference to multiple embodiments
It is described in detail.Below by taking the processing unit shown in Fig. 4 as an example, description being handled containing salt waste based on the saliferous waste treatment equipment
Method.
Fig. 6 shows the block diagram of the saliferous waste treatment method provided according to one embodiment of present invention.
With reference to Fig. 6, the saliferous waste treatment method includes：Abraum salt is transported to organic in the first incinerator 2, abraum salt through feeding device 1
Thing etc. carries out primary oxidation in the first incinerator, and the abraum salt through primary oxidation is delivered to the second incinerator 3 and carries out secondary oxidation.
Combustion chamber 3 is placed in the top of the first incinerator 2, and abraum salt is carried out through the upward ascension of flue gas produced by primary oxidation into combustion chamber 4
Second-time burning.Combustion chamber 3 sets exhanst gas outlet, the entrance of the exhanst gas outlet and high temperature cyclone separator 5 close to the region at top
Connection.So, the flue gas through secondary burning enters the progress solid and gas separation of high temperature cyclone separator 5, and solid falls into the first incinerator 2
Aoxidized again, gas enters Btu utilization equipment to heat recovery and utilization, then to enter back into gas purifying equipment progress
Purification.In the present embodiment, Btu utilization equipment includes the waste heat boiler 7 of one-level waste heat boiler 6 and second.Gas purifying equipment includes
Described chilling tower 8, desulfurizing tower 9, sack cleaner 10 and smoke absorption tower 11.
On the other hand, abraum salt is after secondary oxidation is burned, at the beginning of being placed in the first destroyer 12 of the bottom of the second incinerator 3
After step is broken, it is delivered to through the first cooling conveying device 13 outside system, second be connected with the first cooling conveying device 13 crushes
Device 14 carries out salt after crushing again, is transported outward after the second cooling conveying device 15 and the cooling packing of packing device 16.
It is to be appreciated that saliferous waste treatment equipment and saliferous waste treatment method described above is exemplary
, and it is nonrestrictive.In other embodiments of the invention, also there is many and do not depart from saliferous waste treatment equipment and method
The implementation of the deformation of present subject matter.For example, in the embodiment of a deformation, the second incinerator 3, first can be cancelled
The discharging opening of incinerator 2 is directly connected to cooling packing equipment.Cooling packing equipment can be set with the cooling packing of embodiment above
Standby consistent, i.e., the first destroyer 12, the first cooling conveying device 13, second that the cooling packing equipment includes being sequentially connected are crushed
Device 14, the second cooling conveying device 15 and packaging facilities 16；First destroyer 12 is arranged under the discharging opening of the first incinerator 2
Side.For another example in the embodiment of another modification, Btu utilization equipment and gas purifying equipment can use and be different from figure
Other designs of 4 illustrated embodiments.
In addition, the present invention saliferous waste treatment equipment can not only handle abraum salt, can also handle saliferous solid waste etc. its
It contains salt waste, and this is that those skilled in the art are understandable.
It may be noted that the saliferous waste treatment method of the present invention can be real independent of foregoing saliferous waste treatment equipment
It is existing.For example, according to still another embodiment of the invention, additionally providing a kind of saliferous waste treatment method, comprising the following steps：
1) salt waste will be contained and send into the first incinerator, burned at a temperature of 600-800 DEG C；
2) first incinerator is burned the flue gas produced and enter combustion chamber, two are carried out at a temperature of 850-1100 DEG C
Secondary burning；
3) the second incinerator is sent into containing salt waste after first incinerator is burned, at a temperature of 800-850 DEG C
Secondary burning, solid salt or saliferous residue after being handled.
Organic matter in the flue gas that the present embodiment is produced when can be by saliferous incineration of waste is thoroughly decomposed, it is to avoid produced a large amount of
Bioxin.At the same time, the present embodiment is (independent to flue gas to the primary and secondary oxidation burning of material progress by being classified oxidation
Carry out the burning of 850-1100 degree), improve energy utilization rate, reduce power consumption.
Further, in one embodiment, step 2) in, the solid-state combustion product produced by flue gas secondary combustion is fallen into
In first incinerator.
In one embodiment, the step 2) also include：Flue gas feeding cyclone separator after second-time burning is carried out
Gas solid separation, wherein solid content are fallen into the first incinerator.
In one embodiment, the step 2) in, formation -50Pa in combustion chamber during flue gas secondary combustion~-
260Pa negative pressure.
In one embodiment, the step 1) in, it is described that 10-30 is burned at a temperature of 600-800 DEG C containing salt waste
Minute；The step 2) in, the flue gas is second-time burning 2-8 seconds at a temperature of 850-1100 DEG C；And the step 3) in,
Burned containing salt waste at a temperature of 800-850 DEG C 10-30 minutes.
Further, in one embodiment, for phosphoric acid salt abraum salt, organic matter decomposition temperature 800-830 DEG C it
Between.Preferred 800-850 DEG C an of incineration temperature, burns preferably 15 minutes time, the second-time burning temperature of produced flue gas is preferred
1100 DEG C, preferably 3 seconds second-time burning time.Secondary burning is not carried out to material in the present embodiment.To material at 800-850 DEG C
Under once burning can both use the second incinerator realize, can also use the first incinerator realize.
In another embodiment, for halogen class abraum salt, organic matter decomposition temperature is between 650-700 DEG C.Can
Once burned using the first incinerator.Preferred 650-750 DEG C an of incineration temperature, burns preferably 30 minutes time, is produced
Preferably 1100 DEG C of the second-time burning temperature of raw flue gas, preferably 3 seconds second-time burning time.Burnt in the present embodiment without secondary
Burn, therefore abraum salt is reclaimed from the discharging opening of the first incinerator.
In yet another embodiment, for sulfate radical class abraum salt, organic matter and organic components complexity are contained in abraum salt.Example
Such as, a part of organic matter decomposition temperature is at 650-750 DEG C, between, another part organic matter decomposition temperature at 800-850 DEG C, it
Between.Therefore, the present embodiment burns mode using the two-stage of the one the second incinerator series connection.Incineration temperature of material is preferred
650-800 DEG C, burn preferably 30 minutes time, preferred 800-850 DEG C of the secondary burning temperature of material, burn preferably 20 points of time
Clock.Preferably 1100 DEG C of the second-time burning temperature of produced flue gas, preferably 3 seconds second-time burning time.
Claims (21)
1. a kind of saliferous waste treatment equipment, it is characterised in that including：
First incinerator, has the first opening with shaft, on shaft and can be passed through the nozzle of fuel and air；Inside has can
Carry the fire grate containing salt waste；And
Combustion chamber, above first incinerator, first incinerator is hung down by its first opening with the combustion chamber
Straight close connection so that the solid-state combustion product in the combustion chamber can be unobstructedly fallen into first incinerator.
2. saliferous waste treatment equipment according to claim 1, it is characterised in that the combustion chamber has the burning of column
Indoor chamber, it has the cross section with plane-parallel；First opening of first incinerator is not less than in the combustion chamber
The maximum cross section of chamber.
3. saliferous waste treatment equipment according to claim 2, it is characterised in that the combustion chamber has side wall, described
Side wall, which slopes inwardly, causes the cross section of the combustion chamber inner chamber to be gradually reduced from bottom to up.
4. saliferous waste treatment equipment according to claim 3, it is characterised in that the side wall and horizontal plane of the combustion chamber
Angle be 87-89 °.
5. the saliferous waste treatment equipment according to any one of claim 1-4, it is characterised in that the combustion chamber inner chamber
Cross section be rectangle.
6. the saliferous waste treatment equipment according to any one of claim 3-4, it is characterised in that the side of the combustion chamber
The nozzle of fuel and air can be passed through by having on wall.
7. the saliferous waste treatment equipment according to any one of claim 1-4, it is characterised in that first incinerator
With discharging opening；
The saliferous waste treatment equipment also includes the second incinerator, with shaft, and fuel and air can be passed through by having on shaft
Nozzle；Inside, which has, can carry the fire grate containing salt waste；With charging aperture, it is arranged on corresponding to first incinerator
At the position of discharging opening.
8. saliferous waste treatment equipment according to claim 7, it is characterised in that the charging aperture of second incinerator
Position is less than the discharging opening of first incinerator.
9. saliferous waste treatment equipment according to claim 7, it is characterised in that second incinerator has discharging
Mouthful；
The saliferous waste treatment equipment also includes：
Below first breaker, the discharging opening for being arranged on second incinerator；For receiving the second incinerator output
Material and primary fragmentation is carried out to it；
First cooling conveying device, for receiving the material after the first breaker processing, cools down material and is conveyed
To the second breaker；
Second breaker, second-time breakage is carried out for receiving the material that the first cooling conveying device is conveyed, and to material；
Second cooling conveying device, for receiving the material after the second breaker processing, cools down material and is conveyed
To packing device；And
Packing device, for the material after cooling down and being broken to be packed.
10. the saliferous waste treatment equipment according to any one of claim 1-4, it is characterised in that the combustion chamber tool
There is exhanst gas outlet；
Also there is the second opening on the shaft of first incinerator；
The saliferous waste treatment equipment also includes cyclone separator, and it has gas access, gas vent and is provided with discharging
The interface channel being connected with the second opening of first incinerator of valve；The combustion chamber passes through its exhanst gas outlet and the rotation
The gas access connection of wind separator.
11. saliferous waste treatment equipment according to claim 10, it is characterised in that also including heat utilization device, its
With gas access, the gas vent of the cyclone separator is connected with the gas access of the heat utilization device.
12. saliferous waste treatment equipment according to claim 11, it is characterised in that the heat utilization device has gas
Body is exported；
The saliferous waste treatment equipment also includes gas cleaning plant, and it has gas access, with the heat utilization device
Gas vent connection.
13. saliferous waste treatment equipment according to claim 12, it is characterised in that the gas cleaning plant include according to
Chilling tower, desulfurizing tower, sack cleaner and the smoke absorption tower of secondary connection.
14. a kind of saliferous waste treatment method, it is characterised in that comprise the following steps：
1) salt waste will be contained and send into the first incinerator, burned at a temperature of 600-800 DEG C；
2) first incinerator is burned the flue gas produced and enter combustion chamber, secondary combustion is carried out at a temperature of 850-1100 DEG C
Burn；
3) the second incinerator is sent into containing salt waste after first incinerator is burned, it is secondary at a temperature of 800-850 DEG C
Burn, solid salt or saliferous residue after being handled.
15. saliferous waste treatment method according to claim 14, it is characterised in that the step 2) in, smoke secondary
Solid-state combustion product produced by burning is fallen into the first incinerator.
16. saliferous waste treatment method according to claim 14, it is characterised in that the step 2) also include：By two
Flue gas feeding cyclone separator after secondary burning carries out gas solid separation, and wherein solid content is fallen into the first incinerator.
17. saliferous waste treatment method according to claim 14, it is characterised in that the step 2) in, smoke secondary
During burning in the combustion chamber formation -50Pa~-260Pa negative pressure.
18. the saliferous waste treatment method according to any one of claim 14-17, it is characterised in that the step 1)
In, it is described to be burned containing salt waste at a temperature of 600-800 DEG C 10-30 minutes；The step 2) in, the flue gas is in 850-
Second-time burning 3-8 seconds at a temperature of 1100 DEG C；And the step 3) in, burned containing salt waste at a temperature of 800-850 DEG C
10-30 minutes.
19. a kind of saliferous waste treatment method of the saliferous waste treatment equipment based on described in claim 1, it is characterised in that
Comprise the following steps：
1) salt waste will be contained and send into first incinerator, burned at a temperature of 600-800 DEG C；
2) first incinerator is burned the flue gas produced and enter the combustion chamber, two are carried out at a temperature of 850-1100 DEG C
Secondary burning.
20. in saliferous waste treatment method according to claim 19, described saliferous waste treatment equipment, described first
Incinerator has discharging opening；The saliferous waste treatment equipment also includes the second incinerator, with shaft, and having on shaft to lead to
Enter the nozzle of fuel and air；Inside, which has, can carry the fire grate containing salt waste；With charging aperture, it is arranged on corresponding to described
At the position of the discharging opening of first incinerator；Characterized in that,
The saliferous waste treatment method also includes：
3) the second incinerator is sent into containing salt waste after first incinerator is burned, it is secondary at a temperature of 800-850 DEG C
Burn, solid salt or saliferous residue after being handled.
21. saliferous waste treatment method according to claim 19, it is characterised in that described saliferous waste treatment equipment
In, the nozzle of fuel and air can be passed through by having on the side wall of the combustion chamber；
The step 1) and step 2) in, by controlling to be passed through first incinerator from nozzle respectively and being passed through the combustion chamber
Fuel and air speed so that the temperature of the first incinerator be in 600-800 DEG C, and cause combustion chamber at least part area
The temperature in domain is in 850-1100 DEG C.
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| CN201710537837.3A CN107166397A (en) | 2017-07-04 | 2017-07-04 | A kind of saliferous waste treatment equipment and method |
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| CN201710537837.3A CN107166397A (en) | 2017-07-04 | 2017-07-04 | A kind of saliferous waste treatment equipment and method |
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| CN109579025A (en) * | 2018-11-27 | 2019-04-05 | 东北大学 | A kind of industrial waste salt efficient fusion incinerator |
| CN109990297A (en) * | 2019-04-10 | 2019-07-09 | 常州工学院 | Harmless resource treatment method of chemical salt-containing hazardous waste |
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| CN109990297A (en) * | 2019-04-10 | 2019-07-09 | 常州工学院 | Harmless resource treatment method of chemical salt-containing hazardous waste |
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