CN106949482A - A kind of continuous incineration treatment method of abraum salt - Google Patents
A kind of continuous incineration treatment method of abraum salt Download PDFInfo
- Publication number
- CN106949482A CN106949482A CN201710112834.5A CN201710112834A CN106949482A CN 106949482 A CN106949482 A CN 106949482A CN 201710112834 A CN201710112834 A CN 201710112834A CN 106949482 A CN106949482 A CN 106949482A
- Authority
- CN
- China
- Prior art keywords
- abraum salt
- hot blast
- powder
- treatment method
- incineration treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- 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
- F23G2205/00—Waste feed arrangements
- F23G2205/12—Waste feed arrangements using conveyors
- F23G2205/121—Screw conveyor
Abstract
The invention discloses a kind of continuous incineration treatment method of abraum salt, comprise the following steps：A. in vertical lapping machine by abraum salt particulate abrasive into powder；B. the powder in step a is dried using hot blast and blows into incinerator burning；C. collect the formed fused salt of burning and reclaim remaining heat after burning.Vertical lapping machine is to abraum salt Particle Breakage and is ground to crushing for addition middle during continuous burning disposal of the invention, abraum salt powder is carried using hot blast afterwards to enter in incinerator sufficiently to be burnt, thus the pollutant in solid abraum salt is thoroughly decomposed and destroyed, and the mode that hot blast carrying powder enters incinerator conveying causes hot blast and abraum salt powder without separation, and one stepping of energy enters incinerator.Present invention can apply to abraum salt burning.
Description
Technical field
The present invention relates to abraum salt drying and crushing process field, more particularly to a kind of continuous incineration treatment method of abraum salt.
Background technology
The abraum salt produced in art production process is because it is to the great destructiveness of environment, and to the mankind and animal health
Grave danger and need specially treated.Heat treating process is maximally effective abraum salt processing method, can thoroughly decompose harmful in abraum salt
Material, and rotary kiln is widely used equipment in the processing of this abraum salt, according to lime-ash state in rotary kiln, rotary kiln is divided into
Molten slag formula and non-molten slag formula, and to destroy clearance by fire higher for molten slag formula rotary kiln.
But destroyed following deficiency by fire by the way of rotary kiln incineration processing：
1st, clearance is difficult to reach increasingly strict hazardous waste processing requirement, and abraum salt is difficult to reach that small, uniform particle is sent
To rotary kiln, kiln temperature is difficult to control to, and causes local temperature very high, the nitrogen oxides containing higher concentration in waste gas；
2nd, molten slag formula rotary kiln requires high to refractory material, and refractory material is easily damaged, maintenance maintenance high cost；
3rd, simultaneously, clearance is destroyed by fire in order to improve, molten slag formula rotary kiln needs more auxiliary fuel and higher excess air
Coefficient（To promote contact of the solid combustible with oxygen）, energy consumption is relatively low；
4th, rotary kiln end necessarily configures dual firing chamber, causes investment and operating cost high.
The content of the invention
, can be by it is an object of the invention to provide a kind of continuous incineration treatment method of abraum salt in order to solve the above problems
Pollutant in solid abraum salt is thoroughly decomposed and destroyed.
The technical solution adopted in the present invention is：
A kind of continuous incineration treatment method of abraum salt, comprises the following steps：
A. in vertical lapping machine by abraum salt particulate abrasive into powder；
B. the powder in step a is dried using hot blast and blows into incinerator burning；
C. collect the formed fused salt of burning and reclaim remaining heat after burning.
As a further improvement on the present invention, hot blast carries powder in vertical lapping machine and risen to blow to incinerator,
Powder completes the particle filter of itself during rising.
As a further improvement on the present invention, the powder carried by hot blast is introduced into spray gun, it is dispersed in spray gun after
Burning in incinerator is sprayed into again.
As a further improvement on the present invention, fuel gas and combustion-supporting gas are passed through simultaneously in spray gun.
As a further improvement on the present invention, the fused salt collected in step c is incubated, to prevent crystallization.
As a further improvement on the present invention, natural gas is burnt in hot-blast stove to produce the hot blast in step b, by adjusting
The flow of natural gas is saved to adjust the hot blast temperature of hot blast outlet of still.
As a further improvement on the present invention, the vertical grinder conveying abraum salt particle by way of helical feed, defeated
The amount of sending is by Valve controlling.
As a further improvement on the present invention, the vertical lapping device includes grinding storehouse and the grinding in grinding storehouse
Disk, the powder that hot blast carries after abrasive disk grinding by entering grinding storehouse below abrasive disk, afterwards rises and arranged by grinding silo roof portion
Go out.
As a further improvement on the present invention, the bottom of the abrasive disk is provided with drive shaft, connects the drive of the drive shaft
Heat-insulated processing is done between dynamic device and the air inlet for grinding storehouse.
The beneficial effects of the invention are as follows：The vertical lapping machine that adds middle during continuous burning disposal of the invention is to abraum salt
Particle Breakage is simultaneously ground to crushing, and carrying abraum salt powder using hot blast afterwards enters in incinerator sufficiently to be burnt, by
Pollutant in this solid abraum salt is thoroughly decomposed and destroyed, and hot blast carries powder and enters the mode that incinerator is conveyed
So that hot blast and abraum salt powder are without separation, one stepping of energy enters incinerator.
Brief description of the drawings
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of device used in the continuous incineration treatment method of abraum salt；
Fig. 2 is the schematic diagram of vertical lapping device.
Embodiment
As shown in Figure 1 be device used in the continuous incineration treatment method of abraum salt, it include hot-blast stove 1, blower unit 2,
Vertical lapping device 3, feed arrangement 4, incinerator 5 and fused salt collection device.
Described hot-blast stove 1 is used to produce hot blast, and it is equipped with the combustor 11 positioned at entry position, and combustor 11 is external
Natural gas supply part 12, heat is produced by burning natural gas.The outlet of hot-blast stove 1 can set temperature sensor 13, lead to
The monitoring for crossing hot blast temperature automatically controls the flow for entering the natural gas of combustor 11, with the temperature for the hot blast for controlling hot blast outlet of still
Degree.Described blower unit 2 can be an air-introduced machine, and its entrance connects the outlet of hot-blast stove 1, and it exports the vertical grinding of connection
The bottom air intake vent 31 of device 3, air-introduced machine takes out the hot blast that hot-blast stove 1 is exported the bottom for rising to vertical lapping device 3, and vertical
Malleation is formed on the bottom of formula lapping device 3.
With reference to Fig. 2, vertical lapping device 3 is provided with top mixed export 32 and charging aperture 33, and charging aperture 33 is located at bottom
Between portion's air intake vent 31 and top mixed export 32 and connect feed arrangement 4.Charging aperture 33 is used to input abraum salt particle, gives up afterwards
Salt particle, which enters in vertical lapping device 3, is ground into powder, because the hot blast that bottom air intake vent 31 enters has certain wind
Pressure, ramps up which carry the powder being ground into and is blown out from top mixed export 32, and powder completes itself during rising
Particle filter.The vertical top mixed export 32 of lapping device 3 passes to the top entry of incinerator 5, and powder and hot blast exist afterwards
The inside of incinerator 5 is burned, and its high-temperature molten salt produced is fallen into the fused salt collection device of the bottom fused salt outlet connection of incinerator 5
It is collected.Incinerator 5 is additionally provided with exhanst gas outlet 52, after burning the flue gas containing amount of heat from the row of exhanst gas outlet 52 to waste heat pot
Stove, to reclaim after-heat.
It is further preferred that described fused salt collection device includes fused salt collecting tank 6 and auxiliary combustion machine 61, fused salt are received
Collection groove 6 is made up of the material of salt tolerant fire resisting, and auxiliary combustion machine 61 is located at the periphery of fused salt collecting tank 6, such as is in fused salt collecting tank 6
Top nearby, for the fused salt Heat preservation in fused salt collecting tank, preventing fused salt cooling knot in the fused salt collecting tank 6
It is brilliant.
It is further preferred that incinerator 5 includes the spray gun 51 positioned at top, the top mixed export of vertical lapping device 3
32 connect spray gun 51 by pipeline, and the outlet of spray gun 51 is towards inside incinerator 5.Described spray gun 51 also has fuel gas inlet
511 and air intake 512, fuel gas inlet 511 is used to part 514 that external natural gas supplies be passed through natural gas or other can
Combustion gas body, air intake 512 is used to the external grade part of compressor 513 be passed through air or other combustion-supporting gases.Ground vertical
Mill apparatus 3 be ground after salt powder mixed in spray gun 51 with natural gas, air and it is dispersed including, afterwards spray into burn
Burnt in stove 5, the effect burned is improved with great.Combustion-supporting gas used by incinerator 5 can be natural gas.
Vertical lapping device 3 includes grinding storehouse 35 and the abrasive disk 34 in grinding storehouse 35.Top mixed export 32, enter
Material mouth 33 and bottom air intake vent 31 are from high to low on grinding storehouse 35, and abrasive disk 34 is located at charging aperture 33 and bottom air intake vent 31
Between so as to which 35 points of storehouse will be ground be interconnected bottom air-inlet cavity and top air-out chamber.Abraum salt particle can be from charging aperture 33
Into falling into afterwards in abrasive disk 34 and be ground into powder；The hot blast that blower unit 2 is introduced can be under the entrance of bottom air intake vent 31
Portion's air-inlet cavity, afterwards hot blast rise through abrasive disk 34 and powder dried, because hot blast has certain blast and wind speed,
Powder can rise to top air-out chamber with hot blast, and be discharged from top mixed export 32, arrange to incinerator 5.During being somebody's turn to do, on
The hot blast risen has been automatically performed the screening of powder size.
It is further preferred that the middle part of abrasive disk 34 is provided with drive shaft 36, drive shaft 36 runs through bottom air intake from the bottom to top
The bottom of abrasive disk 34 is connected after chamber, drive shaft 36 is circumscribed with drive device.Salt particle is thrown in the rotary course of abrasive disk 34
The periphery of abrasive disk 34, the bistrique 39 that periphery is set crushes abraum salt, while abraum salt powder is by heated-air drying.
Described drive device connects drive shaft 36 in bottom.Needed for this between drive device and bottom air intake vent 31
Do personal processing.Specifically bottom air-inlet cavity is provided with thermal insulation layer 37.The outer ring of thermal insulation layer 37 connects with the grinding inner wall sealing of storehouse 35
Connect, inner ring and the drive shaft 36 of thermal insulation layer 37 are tightly connected.Described bottom air intake vent 31 is located at thermal insulation layer 37 and abrasive disk 34
Between, hot blast and heat can be stopped by thermal insulation layer 37 without influenceing the drive device of the bottom of drive shaft 36, and hot blast, heat are not yet
It can leak from below.
It is further preferred that thermal insulation layer 37 is tightly connected with the outer wall of drive shaft 36 by axle envelope 38, thermal insulation layer 37 is fixation
Structure, relatively rotates with drive shaft 36.
On the basis of above example, described feed arrangement 4 includes feed screw 41, the spiral shell of feed screw 41
In rotation part access charging aperture 33, and the outlet of feed screw 41 is located at the top of abrasive disk 34, and abraum salt is after helical feed
Abrasive disk 34 is fallen into by the gravity of itself.Spiral part is preferably to insert charging aperture 33 with certain gradient, and it is tilted
For 5 °~30 °, to facilitate discharging.The mode of this helical feed is conducive to the uniform of feeding.
It is further preferred that feed screw 41 is furnished with flow valve 42, the flow valve 42 is rotary valve, for controlling spiral
The feeding amount of feeding.Rotary valve realizes automated production by VFC feeding speed.
In above example, drive device drives described drive shaft 36 using belt transmissioning mode.Specifically, drive
The bottom of axle 36 connects driven pulley 71, and driven pulley 71 is connected by belt 72 with driving pulley 73, and driving pulley 73 is by motor
74 drivings.
Further, the top of the charging aperture 33 of feed screw 41 is additionally provided with loop wheel machine 8, will have wrapped abraum salt particle fortune
Send and deliver in feed screw 41.
In Fig. 1 feed screw 41 be depicted as it is horizontal, in fact, in preferably embodiment, such as Fig. 2 and more than
Described, its spiral part should be inclined.
The course of work of abraum salt CIU is as follows：
Start hot-blast stove 1, blower unit 2, vertical lapping device 3, spray gun 51；
The hot blast temperature of hot-blast stove 1 is set as 100-500 DEG C；
After 32 temperature stabilization of mixed export of top, start flow valve 42 and feed screw 41；
Abraum salt is added in feed screw 41, starts abraum salt drying, crush；
Adjust the rotary speed of flow valve 42, control charging rate to design load；
Adjust the rotating speed of blower unit 2, it is ensured that there are enough air quantity, the running power of vertical lapping device 3 is not exceeded alarm
Value, and ensure the granularity of abraum salt powder between 50-500 mesh；
Adjust the hot blast design temperature of hot-blast stove 1, it is ensured that the temperature of top mixed export 32 is more than 80 DEG C, so as to ensure to dry effect
Really；
When the temperature of fused salt collecting tank 6 is not enough, start auxiliary combustion machine 61；
The fused salt of fused salt collecting tank 6 is discharged in timing.
Embodiment system has further the advantage that：
The drying of abraum salt and the step of crushing energy one are completed, and realize continuous production；
Hot blast and abraum salt powder leave reducing mechanism from lower to upper, it is not necessary to any screening, it is ensured that the granularity of abraum salt is in 50-
Between 500 mesh；
Blower unit is located at before vertical lapping device, realizes drying and crushing positive pressure operation so that go out from vertical lapping device
The hot blast and abraum salt powder come enters incinerator without separation, one stepping of energy；
50-500 DEG C of hot blast enters incinerator, can play combustion-supporting effect, so as to reduce the consumption of room temperature combustion air, saves
The about energy；
Abraum salt after crushing, can be in burner hearth, it is only necessary to several seconds, can just burn completely, the pollutant in solid abraum salt is obtained
Thoroughly decompose and destroy, solve abraum salt normative heat treatment method（Rotary kiln）Middle produced problem；
Due to need to only set incinerator, without adding dual firing chamber, therefore energy consumption, investment reduction and operating cost can be reduced.
The above is the preferred embodiment of the present invention, and it does not constitute limiting the scope of the invention.
Claims (9)
1. a kind of continuous incineration treatment method of abraum salt, it is characterised in that comprise the following steps：
A. in vertical lapping machine by abraum salt particulate abrasive into powder；
B. the powder in step a is dried using hot blast and blows into incinerator burning；
C. collect the formed fused salt of burning and reclaim remaining heat after burning.
2. the continuous incineration treatment method of abraum salt according to claim 1, it is characterised in that：Hot blast is taken in vertical lapping machine
Band powder rises to blow to incinerator, and powder completes the particle filter of itself during rising.
3. the continuous incineration treatment method of abraum salt according to claim 2, it is characterised in that：The powder carried by hot blast is advanced
Enter spray gun, it is dispersed in spray gun after spray into again in incinerator burn.
4. the continuous incineration treatment method of abraum salt according to claim 3, it is characterised in that：Combustible gas is passed through in spray gun simultaneously
Body and combustion-supporting gas.
5. the continuous incineration treatment method of abraum salt according to claim 1 or 2 or 3 or 4, it is characterised in that：To being received in step c
The fused salt insulation of collection, to prevent crystallization.
6. the continuous incineration treatment method of abraum salt according to claim 1, it is characterised in that：Burn natural gas in hot-blast stove
To produce the hot blast in step b, the hot blast temperature of hot blast outlet of still is adjusted by adjusting the flow of natural gas.
7. the continuous incineration treatment method of abraum salt according to claim 1, it is characterised in that：By way of helical feed pair
Vertical lapping machine conveys abraum salt particle, and conveying capacity is by Valve controlling.
8. the continuous incineration treatment method of abraum salt according to claim 1 or 6 or 7, it is characterised in that：The vertical grinding dress
The abrasive disk including grinding storehouse and in grinding storehouse is put, hot blast carries abrasive disk afterwards by entering grinding storehouse below abrasive disk
Powder after grinding rises and discharged by grinding silo roof portion.
9. the continuous incineration treatment method of abraum salt according to claim 8, it is characterised in that：The bottom of the abrasive disk is provided with
Drive shaft, to connect and do heat-insulated processing between the drive device of the drive shaft and the air inlet in grinding storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710112834.5A CN106949482A (en) | 2017-02-28 | 2017-02-28 | A kind of continuous incineration treatment method of abraum salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710112834.5A CN106949482A (en) | 2017-02-28 | 2017-02-28 | A kind of continuous incineration treatment method of abraum salt |
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| CN106949482A true CN106949482A (en) | 2017-07-14 |
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| CN201710112834.5A Pending CN106949482A (en) | 2017-02-28 | 2017-02-28 | A kind of continuous incineration treatment method of abraum salt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647857A (en) * | 2018-12-25 | 2019-04-19 | 河海大学 | A kind of processing method of industrial waste salt |
| CN116608470A (en) * | 2023-05-16 | 2023-08-18 | 广州拉斯卡工程技术有限公司 | Halogen-containing waste incineration and hydrogen halide recovery method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647857A (en) * | 2018-12-25 | 2019-04-19 | 河海大学 | A kind of processing method of industrial waste salt |
| CN116608470A (en) * | 2023-05-16 | 2023-08-18 | 广州拉斯卡工程技术有限公司 | Halogen-containing waste incineration and hydrogen halide recovery method |
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| CB02 | Change of applicant information |
Address after: 511464 Guangdong province Guangzhou Nansha District wanqinsha town Guangdong Road nine Yong processing zone building the first floor X1069 Applicant after: Guangzhou LASCA Engineering Technology Co Ltd Address before: 510032 Guangdong province Guangzhou Nansha District wanqinsha town Guangdong Road nine Yong processing zone building the first floor X1069 Applicant before: Guangzhou LASCA Engineering Consulting Co. Ltd. |
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Application publication date: 20170714 |
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