CN107388262A - A kind of harmlessness disposing method of comprehensive utilization of high saliferous chemical engineering sludge - Google Patents
A kind of harmlessness disposing method of comprehensive utilization of high saliferous chemical engineering sludge Download PDFInfo
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- CN107388262A CN107388262A CN201710621099.0A CN201710621099A CN107388262A CN 107388262 A CN107388262 A CN 107388262A CN 201710621099 A CN201710621099 A CN 201710621099A CN 107388262 A CN107388262 A CN 107388262A
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- 239000010802 sludge Substances 0.000 title claims abstract description 46
- 238000003889 chemical engineering Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 37
- 150000003839 salts Chemical class 0.000 claims abstract description 59
- 238000009825 accumulation Methods 0.000 claims abstract description 20
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 239000000203 mixture Substances 0.000 claims description 46
- 239000007788 liquid Substances 0.000 claims description 43
- 238000012546 transfer Methods 0.000 claims description 42
- 238000002386 leaching Methods 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 36
- 239000003546 flue gas Substances 0.000 claims description 30
- 238000011084 recovery Methods 0.000 claims description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 25
- 239000007787 solid Substances 0.000 claims description 25
- 239000000779 smoke Substances 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 21
- 239000002028 Biomass Substances 0.000 claims description 19
- 238000004064 recycling Methods 0.000 claims description 19
- 238000005303 weighing Methods 0.000 claims description 19
- 239000002699 waste material Substances 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- 239000002912 waste gas Substances 0.000 claims description 15
- 239000012452 mother liquor Substances 0.000 claims description 14
- 230000029219 regulation of pH Effects 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 11
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 11
- 239000004571 lime Substances 0.000 claims description 11
- 239000002562 thickening agent Substances 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000005021 gait Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 238000007363 ring formation reaction Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 abstract description 2
- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 10
- 239000002893 slag Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000005265 energy consumption Methods 0.000 description 8
- 230000035699 permeability Effects 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 231100000614 poison Toxicity 0.000 description 6
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 230000007096 poisonous effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010420 shell particle Substances 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- 239000005562 Glyphosate Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- XDDAORKBJWWYJS-UHFFFAOYSA-N glyphosate Chemical compound OC(=O)CNCP(O)(O)=O XDDAORKBJWWYJS-UHFFFAOYSA-N 0.000 description 1
- 229940097068 glyphosate Drugs 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- -1 it is portable Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/041—Treatment of water, waste water, or sewage by heating by distillation or evaporation by means of vapour compression
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F2001/5218—Crystallization
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/80—Furnaces with other means for moving the waste through the combustion zone
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention belongs to Solid Waste Treatment technical field, more particularly to a kind of harmlessness disposing method of comprehensive utilization of high saliferous chemical engineering sludge, methods described burns reclaimer using negative-pressure cyclic accumulation of heat, maintenance and replacing are easy, equipment use cost is cheap, the harmlessness disposing of high saliferous chemical engineering sludge can be realized, reclaim the salt in sludge, and high saliferous chemical engineering sludge can be overcome to melt under the high temperature conditions, ring formation, caking etc. cause the technical barrier of serious damage to incinerator, improve and burn effect, energy-conserving and environment-protective.
Description
Technical field
The invention belongs to Solid Waste Treatment technical field, and in particular to a kind of harmlessness disposing of high saliferous chemical engineering sludge
Method of comprehensive utilization.
Background technology
High saliferous chemical engineering sludge refer to caused by industrial processes containing organic matter, other poisonous and harmful substances and
Moisture, and the sludge based on inorganic abraum salt, in the production process of many fine chemistry industries, chemical pesticide product or intermediate,
It such as will often produce 1 ton of hydrazine hydrate with the generation of a large amount of high saliferous chemical engineering sludges and will produce 4~5 tons and contain poisonous harmful
The high saliferous chemical engineering sludge of by-product of material is learned, often produces 1 ton of glyphosate pesticide, then producing 1.1~1.4 tons contains poisonous harmful chemicals
The high saliferous chemical engineering sludge of by-product of material, as the development of many important fine chemistry industries and intermediate product, height are dirty containing salt chemical engineering
The amount of mud is also being continuously increased, and turns into the big bottleneck for hindering industry development.
High saliferous chemical engineering sludge is on the one hand because containing moisture, and easily caking, intractability are big；On the other hand again because having containing poisonous
Evil chemical substance, it is impossible to directly as the raw material of industry use, therefore at present most of enterprise processing mode mainly have it is following several
Kind：1. desalinization of soil by flooding or leaching method, by salt slag water or organic solvent washing, washing away the impurity in salt slag as far as possible, the salt after processing is used to join alkali
Industry, but the method is only applicable to the by-product salt slag that impurity content is few and impurity composition is single, and the water or organic solvent of washing
The problem of in the presence of secondary pollutions such as reprocessing, in addition, the impurity in by-product salt slag is difficult to clean, residual quantity is also unstable, it is difficult to
Realize industrialization；2. high-temperature process method, by salt slag high-temperature process, the organic impurities for making to contain in salt slag resolves into gas at high temperature
To reach the purpose for removing organic impurities, but the key of the method is the research and development of resolving device, and the current country has report to use back
The Thermal Equipments such as rotary kiln, fluidized bed furnace carry out 800 DEG C of high temperature above calcination processings, but the method has the nothing in high saliferous chemical engineering sludge
Melting, ring formation, caking easily occur at high temperature for machine salt, cause equipment can not the engineering problem such as normal operation, it is difficult to realize industrial
Change；3. landfill or tipping, directly topple over the outdoor stockpiling of salt slag or into rivers, but the method is simple and crude, stores up for a long time
Salt slag does not only take up a large amount of soils, also to environment structure grave danger, and the soluble-salt of these high saliferous chemical engineering sludges and has
Malicious harmful chemical such as with rain water runoff, can serious salinization surrounding soil, destroy surrounding vegetation, deteriorate water quality, polluted source,
Life to people constitutes a serious threat.
Therefore, harmless treatment is carried out to these high saliferous chemical engineering sludges and carries out recycling, turn into industry urgency
The significant problem that need to be solved.
The content of the invention
For drawbacks described above, it is an object of the invention to provide a kind of comprehensive utilization of the harmlessness disposing of high saliferous chemical engineering sludge
Method, methods described can realize the harmlessness disposing of high saliferous chemical engineering sludge, reclaim the salt in sludge, and height can be overcome to contain
Salt chemical engineering sludge melts under the high temperature conditions, ring formation, caking etc. cause the technical barrier of serious damage to incinerator, improves and burns
Effect, energy-conserving and environment-protective.
For achieving the above object, the present invention provides following technical scheme：
A kind of harmlessness disposing method of comprehensive utilization of high saliferous chemical engineering sludge, comprises the following steps：
Step 1：It is 3-12mm that high saliferous chemical engineering sludge is crushed into particle diameter, and sludge is pressed with lime, chaff shell, biomass fuel
According to mass ratio 40-80：0-5：10-20：10-35 ratio is mixed to prepare mixture, and the particle diameter of the chaff shell is 2-8mm, described
The particle diameter of biomass fuel be 1-8mm, caloric value is 4500-6500 kilocalories；
Step 2：Step 1 gains are delivered in negative-pressure cyclic accumulation of heat burning reclaimer and carry out burning recycling,
The thickness of step 1 gains is no more than 900mm, and the speed of conveying is 0-2m/s, and recovery is burned in the negative-pressure cyclic accumulation of heat
Equipment includes hybrid system, car-type CIU, exhausting system, smoke circulating system, salt recovery system, transmission system and cigarette
Gas cleaning system, it is characterised in that：
The hybrid system includes multiple feed bins, weighing balance, mixed stirring device, the discharging opening alignment metering of the feed bin
The weighing plate of title, the weighing plate of the weighing balance is corresponding with the charging aperture of mixed stirring device, the discharging opening of mixed stirring device
Connect transmission system, lime, chaff shell and the biomass fuel in feed bin after weighing balance weighs, be sent into mixed stirring device with
High saliferous chemical engineering sludge mixes to obtain the mixture described in step 1, and communicated system is sent into car-type CIU；
The car-type CIU includes auger type distributor, preheating cover, track and the series connection platform moved in orbit
Car, the track are divided into cloth section, preheating igniting section, incineration section and cooling section, the auger type distributor from front to back
Interior to be provided with material scattering device, the cloth section of respective carter is provided with igniter in the preheating cover, it is described preheat to cover is provided with waste gas
Import and fuel nozzle, the preheating igniting section of respective carter, step 1 gained mixture is through auger type distributor cloth in series connection platform
Che Shang, material loosening degree is suitable, and series connection chassis marches to preheating igniting section corresponding to preheating cover, is passed through through exhaust gas inlet useless
Gas is to the material pre-heating temperature elevation on chassis, igniter fire, and firing temperature is 800 DEG C -900 DEG C, can either avoid mixture without
The defects of method is lighted, and can enough avoid the too high caused high energy consumption of temperature, mixture top layer from melting the defects of influenceing gas permeability；Institute
The design that series connection chassis movement is burned is stated, high saliferous chemical engineering sludge can be overcome to melt under the high temperature conditions, ring formation, caking etc. pair
The breaking-up of incinerator, high saliferous sludge burns independently of each other, on the chassis that is connected in series at more, and realizes chassis by track
Incinerator is moved out, then chassis discharging is crushed, breaking-up will not be not only produced to incinerator, and it is more preferable to burn effect；This
Outside, trolley structure is simple, and it is easy that maintenance is changed, equipment life length, and use cost is cheap；The incineration section top of the track and cigarette
The gas circulatory system is tightly connected, and the preheating igniting section of the track, the lower section of incineration section and cooling section and exhausting system sealing connect
Connect；
The exhausting system is taken out including multiple with what is be tightly connected below the preheating igniting section, incineration section and cooling section of track
Fan housing, each draught hood connects a set of air draft pipeline being made up of exhaust column and air exhauster, between the exhaust column and air exhauster
Provided with steam-water separator, the water outlet end of the steam-water separator is connected with salt recovery system, and steam-water separator will be burned and produced
Flue gas and condensed water separated, the condensed water isolated through water outlet end enter salt recovery system in reuses, separate
The flue gas gone out enters smoke circulating system through air exhauster, with the tail end and cigarette of the air draft pipeline connected below track preheating igniting section
Gas cleaning system connects, and air will be discharged into after the waste gas purification of second-time burning is up to standard in preheating is covered, with track incineration section lower section
The tail end of the air draft pipeline of connection is connected with next stage smoke circulating system, and the material in next stage smoke circulating system is carried out
Preheating and drying, the heat energy in waste gas is made full use of, reduce energy consumption, with the afterbody air draft pipeline connected below track incineration section
Outlet connected with exhaust gas inlet, preheating both was dried to the material in preheating cover, and by waste gas progress second-time burning depth
Processing, connected with the air draft pipeline connected below track cooling section with sinter machine discharge end dedusting device；
Described smoke circulating system includes multiple flue gas covers being connected with the incineration section upper seal of track, each flue gas
Exhaust gas entrance is equipped with cover and fresh air matches somebody with somebody entrance, the exhaust gas entrance of the flue gas cover connects with the tail end of upper level air draft pipeline
It is logical, the flue gas that the harmful substance in mixed material is decomposed to form in high temperature incineration, enter air draft pipeline through draught hood, deliver to down
One-level flue gas cover, complete drying and preheating to back segment mixed material；
Described salt recovery system includes the ball mill device of pipeline connection, leaching wash mill, pH regulations tank, MVR successively
Device (also known as steam mechanical recompression device) and equipment for separating liquid from solid, the ball mill device is by ball mill, entrance and ball mill
The Water spray dust collecting box of outlet and some waste residue feed bins composition, the entrance of the waste residue feed bin and going out for Water spray dust collecting box
Mouth connection, the outlet of the waste residue feed bin connect with leaching wash mill, and residue is through ball caused by the burning of car-type CIU
Grinding machine is crushed to particle diameter and is no more than 100 mesh, can fully expose the salt being wrapped in residue, improves and leaches clean result, enters
Stored in Water spray dust collecting box after dust removal process to waste residue feed bin；The leaching wash mill includes multistage by agitator tank, press filtration
The leaching wash of machine and transfer tank composition, every grade is leached in wash, and agitator tank outlet connects with filter press entrance, presses
The agitator tank material inlet that the solid outlet of filter leaches wash with next stage connects, the liquid outlet of filter press and transfer
Tank entrance connects, and the outlet that the first order leaches the transfer tank of wash connects with pH regulation tanks, other leaching washing groups at different levels
The agitator tank leaching solvent entrance that wash is leached in the outlet of the transfer tank of part with upper level connects, and the first order leaches washing group
The water outlet end outlet with the steam-water separator of exhausting system and next stage leach simultaneously for the disengaging colvent inlet of the agitator tank of part
The outlet of wash transfer tank, the pH regulations tank is interior to be provided with pH meter and pH agent addition box, adjusts in pH regulation tanks
Liquid pH to 7-8；The MVR devices include heater, crystallizer, separator, vapour compression machine and suspension thickener, described to add
Hot device is connected with crystallizer, provides vapours heat supply for crystallizer, the top of the crystallizer passes through separator and both vapor compression
Machine is connected, and the bottom of the crystallizer connects with suspension thickener, and the outlet of the vapour compression machine connects with heater, and pH is adjusted
Liquid in section tank is pumped into the crystallizer of MVR devices, and under heater heat supply effect, liquid moisture is constantly evaporated to water steaming
Gas, the vapor enter vapour compression machine by separator, under vapour compression machine compression, improve the vapor
Pressure and temperature, it is again introduced into heater and is used as thermal source, the heat energy of the vapor can not only be recycled, moreover it is possible to omit
The condensation procedure and equipment of the vapor, salt is separated out after liquid evaporation concentration in crystallizer and obtains solidliquid mixture, it is described solid
Liquid mixture is pumped into suspension thickener；The equipment for separating liquid from solid includes centrifuge, salt recycling can and mother liquor tank, the centrifuge
Entrance be connected with the outlet in suspension thickener, the solid outlet of the centrifuge connects with salt recycling can, the centrifuge
Liquid outlet connected with mother liquor tank, the mother liquor tank is connected by Valve controlling pump with leaching wash mill and MVR devices,
Separation of solid and liquid is completed under centrifuge effect, the solid of separation enters salt recycling can, can be used in Snow Agent etc., purity is high, nothing
Environment poisons side effect, and the liquid of separation enters mother liquor tank and carries out purity detecting, if impurity content is unqualified blowback leach and wash
Device is washed, if in blowback MVR devices if impurity content is qualified, the salt remained in mother liquor tank can either be reused, realize zero-emission
Put, be able to ensure that the purity of recovery salt again；
The escape pipe of the smoke eliminator is connected to chimney by air exhauster, will purify waste gas up to standard and discharges.
According to method of the present invention, high saliferous chemical engineering sludge, lime, chaff shell and biomass fuel described in step 1
Mass ratio be 50-80：1-5：10-15：10-35.
The inventors discovered that high saliferous chemical engineering sludge, lime, the mass ratio of chaff shell and biomass fuel burn to mixture
It is larger to burn influential effect, as above-mentioned four 40-80 in mass ratio：0-5；10-20：10-35 ratio, especially in mass ratio
50-80：1-5：10-15：During 10-35 ratio mixing, the obtained horizontal appropriate, inorganic salts of mixture good permeability, calorific value melt
Melt, ring formation, caking it is few, burning is abundant.
In addition, property influence of the particle diameter of chaff shell and biomass fuel also on mixture is very big, when chaff shell or biomass fuel
When expecting particle diameter more than 8mm, obtained mixture gas permeability is excessively good, and burning velocity is too fast, and large granular materials can not obtain sufficiently
Burning；When chaff shell particle diameter is less than 2mm or biomass fuel particle diameter is less than 1mm, phase between obtained mixture material and material
Mutual adhesion, the poor air permeability of the bed of material, firing rate decline, and influence to burn effect；The present inventor by largely testing discovery, when
When chaff shell particle diameter is 2-8mm and biomass fuel particle diameter is 1-8mm, obtained mixture good permeability, calorific value water both can guarantee that
Flat appropriate, and can enough reduces inorganic salts melting, ring formation, caking phenomenon, and burning is abundant.
According to method of the present invention, the mixture thickness described in step 2 is 300-900mm.
The present inventors have additionally discovered that when mixture is sent into the incinerator of negative-pressure cyclic accumulation of heat recovery system, thickness and traveling
Speed to burn effect also have a significant impact, when thickness more than 900mm or gait of march more than 2m/s when, the gas permeability of mixture
Not enough, it can not burn fully, influence to burn effect；If thickness is less than 300mm, the accumulation of heat effect of mixture is poor, can not be abundant
Burning；The thickness for only controlling mixture is 300-900mm, and gait of march is 0-2m/s, especially for 0.2-1.5m/s when,
Both it is abundant to have can guarantee that mixture burned, and can effectively reduces inorganic salts melting, ring formation, caking phenomenon, improves the warp of fixed-end forces
Benefit of helping and treatment effeciency, while it is able to ensure that the stable operation of system.
According to method of the present invention, the leaching wash mill described in step 2 includes the first agitator tank, the first press filtration
In machine, the first transfer tank, the second agitator tank, the second filter press, the second transfer tank, the 3rd agitator tank, the 3rd filter press and the 3rd
Turn tank, the material inlet of first agitator tank is connected with waste residue bin outlet, the leaching solvent entrance of first agitator tank
Export and connect with the water outlet end of the steam-water separator of exhausting system, realize the recycling of condensed water caused by burning, it is described
The outlet of first agitator tank connects with the first filter press, and the material of the solid outlet and the second agitator tank of first filter press enters
Mouthful connection, the liquid outlet of first filter press connects with the entrance of the first transfer tank, the outlet of the first transfer tank and
PH regulation tank connections, the liquid salt content that the first filter press filters out is high, about 15%-20%, can significantly reduce follow-up MVR dresses
The energy consumption for being concentrated by evaporation filtrate is put, improves the efficiency and benefit of salt recovery；The outlet of second agitator tank and the second filter press
Connection, the solid outlet of second filter press connect with the entrance of the 3rd agitator tank, the liquid outlet of second filter press
Being connected with the entrance of the second transfer tank, the outlet of the second transfer tank connects with the leaching solvent entrance of the first agitator tank, the
Two transfer pot liquids flow back to the first agitator tank as residue leaching solvent, can either further reclaim what is remained in incineration residue
Salinity, and can enough realizes the recycling of recovery water, economic and environment-friendly；The outlet of 3rd agitator tank connects with the 3rd filter press
Connect, solid outlet and the filter residue of the 3rd filter press are stacked pond and be connected, and the filter residue moisture content through three-level countercurrent washing is less than
30%, salt content is less than 0.5%, nonhazardous material, can be directly used as brick or light wall board material, economic and environment-friendly, and described the
The liquid outlet of three filter presses connects with the 3rd transfer tank, the outlet of the 3rd transfer tank and the leaching solvent of the second agitator tank
Entrance connects, and similarly, the 3rd transfer pot liquid flows back to the second agitator tank as residue leaching solvent, can either further return
The salinity remained in incineration residue is received, and can enough realizes the recycling of recovery water, economic and environment-friendly.
According to method of the present invention, the fresh air of the flue gas device described in step 2 is adjusted with entrance provided with blast pipe
Valve is saved, by controlling its aperture to control the amount of allocating of fresh air.
The present invention method, using negative-pressure cyclic accumulation of heat burn reclaimer the characteristics of, add certain supplies, come
The disposal to high saliferous sludge is realized, is characterized in that harmful substance that can be in high saliferous sludge carries out the same of burning disposal
When, on the one hand using connect chassis movement burn the characteristics of, overcome high saliferous chemical engineering sludge to melt under the high temperature conditions, ring formation,
The breaking-up to incinerator such as caking, improves and burns effect；On the other hand the characteristics of being preheated using incinerator when burning, is realized
Heat energy reuses, and specific advantage is as follows：
1st, reclaimer is burned using negative-pressure cyclic accumulation of heat, incinerator is connected by multiple separate burning chassis
Composition, it is portable, and material is static, high saliferous sludge can be melted on chassis under the high temperature conditions, after discharging is broken
Collect, will not produce coking etc. to incinerator influences, so as to have influence on the life-span of the effect of burning and equipment and using function；
2nd, the burning trolley structure used is simple, and maintenance and replacing are easy, and equipment use cost is cheap；
3rd, because high saliferous sludge calorific value is extremely low, must be added again containing the serious a small amount of organic substance of harm, during burning
Substantial amounts of auxiliary fuel, energy consumption is big, burns recovery technology using the negative-pressure cyclic accumulation of heat of the present invention, is effectively burnt using upper materials
High-temperature steam caused by burning is dried and preheated to bottom material, is improved burning disposal and is obtained special efficacy rate, reduces energy consumption；
4th, flue gas is on the one hand by extractor fan and flue gas device recycling heat energy caused by burning, on the one hand in exhausting
Run in the sealing pipeline of device and flue gas device, smoke eliminator is finally entered after dual firing chamber's advanced treating, is not produced
Secondary pollution, cleanly production can be realized；
5th, smoke multistage circulation secondary combustion technology is employed, the harmful components in gas are effectively addressed, and fire simultaneously
The oxygen content of waste gas is utilized effectively during burning, therefore new intake is greatly decreased, and then a large amount of reduction fume emissions are total
Amount, more than 60% can be reduced compared with typically burning mode fume emission total amount；
6th, the water of discharge, gas, slag are up to state standards.
Brief description of the drawings
Fig. 1 is the structural representation that reclaimer is burned in negative-pressure cyclic accumulation of heat of the present invention；
Fig. 2 is the structural representation that reclaimer hybrid system is burned in negative-pressure cyclic accumulation of heat of the present invention；
Fig. 3 is that reclaimer car-type CIU, exhausting system, flue gas recirculation system are burned in negative-pressure cyclic accumulation of heat of the present invention
The structural representation of system, salt recovery system and flue gas purification system；
Fig. 4 is the structural representation that reclaimer salt recovery system salt recovery system is burned in negative-pressure cyclic accumulation of heat of the present invention,
Wherein ball mill device, leaching wash mill and pH regulation tanks have structure for amplifying；
Fig. 5 is the structural representation that reclaimer salt recovery system salt recovery system is burned in negative-pressure cyclic accumulation of heat of the present invention,
Wherein MVR devices and equipment for separating liquid from solid are by structure for amplifying；
In figure,
1- hybrid systems, 11- feed bins, 12- weighing balances, 13- mixed stirring devices；
2- car-type CIUs, 20- auger type distributors, 21- preheating covers, 22- tracks, 23- series connection chassis, 24- things
Expect dispersing device, 25- igniters, 26- exhaust gas inlets, 27- fuel nozzles；
3- exhausting systems, 31- draught hoods, 32- exhaust columns, 33- air exhausters, 34- steam-water separators；
4- smoke circulating systems, 41- flue gas covers, 42- exhaust gas entrances, 43- fresh airs match somebody with somebody entrance；
5- salt recovery systems, 51- ball mill devices, 511- ball mills, 512- Water spray dust collecting boxes, 513- waste residue feed bins, 52-
Leach wash mill, the agitator tanks of 521- first, the filter presses of 522- first, 523- the first transfer tanks, the agitator tanks of 524- second, 525-
Second filter press, 526- the second transfer tanks, the agitator tanks of 527- the 3rd, the filter presses of 528- the 3rd, the transfer tanks of 529- the 3rd, 53-pH
Regulation tank, 54-MVR devices, 541- heaters, 542- crystallizers, 543- separators, 544- vapour compression machines, 545- suspensions are thick
Thick device, 55- equipment for separating liquid from solid, 551- centrifuges, 552- salt recycling cans, 553- mother liquor tanks；
6- transmission systems；
7- flue gas purification systems.
Embodiment
Reclaimer is burned in the negative-pressure cyclic accumulation of heat of embodiment 1
As Figure 1-5, reclaimer is burned in negative-pressure cyclic accumulation of heat of the invention includes hybrid system 1, and car-type burns
System 2, exhausting system 3, smoke circulating system 4, salt recovery system 5, transmission system 6 and flue gas purification system 7, the mixed stocker
System 1 includes multiple feed bins 11, weighing balance 12, mixed stirring device 13, the title of the discharging opening alignment weighing balance 12 of the feed bin 11
Disk is measured, the weighing plate of the weighing balance 12 is corresponding with the charging aperture of mixed stirring device 13, the discharging opening of mixed stirring device 13
Transmission system 6 is connected, lime, chaff shell and the biomass fuel in feed bin 11 are sent into after the weighing of weighing balance 12 and mix dress
Put in 13 and high saliferous chemical engineering sludge mixes to obtain the mixture described in step 1, communicated system 6 is sent into car-type and burned
In system 2；
The car-type CIU 2 includes auger type distributor 20, preheating cover 21, track 22 and moved on track 22
Series connection chassis 23, the track 22 is divided into cloth section, preheating igniting section, incineration section and cooling section from front to back, described
Material scattering device 24 is provided with auger type distributor 20, the cloth section of respective carter 22, the preheating cover 21 is interior to be provided with igniter
25, the preheating cover 21 is provided with exhaust gas inlet 26 and fuel nozzle 27, the preheating igniting section of respective carter 22, step 1 gained
For mixture through the cloth of auger type distributor 20 on series connection chassis 23, material loosening degree is suitable, and series connection chassis 23 marches to pre-
Preheating igniting section corresponding to heat cover 21, through the waste gas that exhaust gas inlet 26 is passed through to the material pre-heating temperature elevation on chassis, igniter 25
Igniting, firing temperature are 800 DEG C -900 DEG C, and the defects of mixture can either be avoided not light, and can enough avoids temperature too high
The defects of caused high energy consumption, the melting of mixture top layer influence gas permeability；The design that series connection chassis 23 movement is burned, can
High saliferous chemical engineering sludge is overcome to melt under the high temperature conditions, the breaking-up to incinerator such as ring formation, caking, high saliferous sludge is in Duo Tai
Independently of each other, burned on the chassis being connected in series, and realize that chassis moves out incinerator by track 22, then to chassis discharging
It is broken, breaking-up will not be not only produced to incinerator, and it is more preferable to burn effect；In addition, trolley structure is simple, maintenance, which is changed, to be held
Easily, equipment life is grown, and use cost is cheap；It is tightly connected above the incineration section of the track 22 with smoke circulating system 4, it is described
The preheating igniting section of track 22, the lower section of incineration section and cooling section and exhausting system 3 are tightly connected；
The exhausting system 3 includes multiple with being tightly connected below the preheating igniting section of track 22, incineration section and cooling section
Draught hood 31, each draught hood 31 connects a set of air draft pipeline being made up of exhaust column 32 and air exhauster 33, the exhaust column
Steam-water separator 34 is provided between 32 and air exhauster 33, the water outlet end of the steam-water separator 34 connects with salt recovery system 5,
Steam-water separator 34 is separated flue gas caused by burning and condensed water, and the condensed water isolated returns through water outlet end into salt
Reused in receipts system 5, the flue gas isolated enters smoke circulating system 4 through air exhauster 33, with the preheating igniting section of track 22
The tail end of the air draft pipeline of lower section connection connects with flue gas purification system 7, by the waste gas purification of the second-time burning in preheating cover 21
Air is discharged into after up to standard, the tail end of the air draft pipeline with being connected below the incineration section of track 22 connects with next stage smoke circulating system 4
It is logical, preheating and drying is carried out to the material in next stage smoke circulating system 4, makes full use of the heat energy in waste gas, reduces energy consumption, with
The outlet of the afterbody air draft pipeline of connection connects with exhaust gas inlet 26 below the incineration section of track 22, both in preheating cover 21
Preheating is dried in material, and waste gas is carried out into second-time burning advanced treating, with the exhaust column connected below the cooling section of track 22
Road connects with sinter machine discharge end dedusting device；
Described smoke circulating system 4 includes multiple flue gas covers 41 being connected with the incineration section upper seal of track 22, often
Exhaust gas entrance 42 is equipped with individual flue gas cover 41 and fresh air matches somebody with somebody entrance 43, the exhaust gas entrance 42 of the flue gas cover 41 is taken out with upper level
The tail end of air pipe line connects, and the flue gas that the harmful substance in mixed material is decomposed to form in high temperature incineration, enters through draught hood 31
Enter air draft pipeline, deliver to next stage flue gas cover 41, complete drying and preheating to back segment mixed material；
Described salt recovery system 5 includes ball mill device 51, leaches wash mill 52, pH regulations tank 53, the and of MVR devices 54
Equipment for separating liquid from solid 55, the ball mill device 51 are gathered dust by the Water spray of ball mill 511, entrance and the outlet of ball mill 511
Case 512 and some waste residue feed bins 513 form, the entrance of the waste residue feed bin 513 and the outlet of Water spray dust collecting box 512,
The outlet of the waste residue feed bin 513 connects with leaching wash mill 52, and car-type CIU 2 burns caused residue through ball milling
Machine 511 is crushed to particle diameter and is no more than 100 mesh, can fully expose the salt being wrapped in residue, improves and leaches clean result, enters
Stored in Water spray dust collecting box 512 after dust removal process to waste residue feed bin 513；The leaching wash mill 52 includes the first agitator tank
521st, the first filter press 522, the first transfer tank 523, the second agitator tank 524, the second filter press 525, the second transfer tank 526,
Three agitator tanks 527, the 3rd filter press 528 and the 3rd transfer tank 529, the material inlet and waste residue material of first agitator tank 521
The outlet of storehouse 513 connection, the water of the leaching solvent entrance of first agitator tank 521 and the steam-water separator 34 of exhausting system 3 go out
Mouth brings out mouth connection, realizes the recycling of condensed water caused by burning, outlet and the first press filtration of first agitator tank 521
Machine 522 connects, and the solid outlet of first filter press 522 connects with the material inlet of the second agitator tank 524, first pressure
The liquid outlet of filter 522 connects with the entrance of the first transfer tank 523, outlet and the pH regulation tanks of the first transfer tank 523
53 connections, the liquid salt content that the first filter press filters out is high, about 15%-20%, can significantly reduce follow-up MVR devices 54 and steam
The energy consumption of hair concentration filtrate, improve the efficiency and benefit of salt recovery；The outlet of second agitator tank 524 and the second filter press
525 connections, the solid outlet of second filter press 525 connect with the entrance of the 3rd agitator tank 527, second filter press
525 liquid outlet connects with the entrance of the second transfer tank 526, outlet and the first agitator tank 521 of the second transfer tank 526
The connection of leaching solvent entrance, liquid flows back to the first agitator tank 521 and is used as residue leaching solvent in the second transfer tank 526, can
The salinity remained in enough further recovery incineration residues, and can enough realizes the recycling of recovery water, economic and environment-friendly；Described
The outlet of three agitator tanks 527 is connected with the 3rd filter press 528, and solid outlet and the filter residue of the 3rd filter press 528 stack pond
Connection, the filter residue moisture content through three-level countercurrent washing are less than 30%, and salt content is less than 0.5%, nonhazardous material, can directly use
Make brick or light wall board material, economic and environment-friendly, the liquid outlet of the 3rd filter press 528 connects with the 3rd transfer tank 529, institute
The outlet for stating the 3rd transfer tank 529 connects with the leaching solvent entrance of the second agitator tank 524, similarly, in the 3rd transfer tank 526
Liquid flows back to the second agitator tank 521 and is used as residue leaching solvent, can either further reclaim the salinity remained in incineration residue, again
The recycling of recovery water can be realized, it is economic and environment-friendly；PH meter and pH agent addition box, regulation are provided with the pH regulations tank 53
Liquid pH to 7-8 in pH regulation tanks 53；The MVR devices 54 include heater 541, crystallizer 542, separator 543, steam
Compressor 544 and suspension thickener 545, the heater 541 are connected with crystallizer 542, and providing vapours for crystallizer 542 supplies
Heat, the top of the crystallizer 542 are connected by separator 543 with vapour compression machine 544, the bottom of the crystallizer 542 with
Suspension thickener 545 connects, and the outlet of the vapour compression machine 544 connects with heater 541, the liquid pump in pH regulation tanks 53
Enter in the crystallizer 542 of MVR devices 54, under the heat supply of heater 541 effect, liquid moisture is constantly evaporated to vapor, described
Vapor enters vapour compression machine 544 by separator 543, under the compression of vapour compression machine 544, improves the vapor
Pressure and temperature, be again introduced into heater 541 and be used as thermal source, the heat energy of the vapor can not only be recycled, and also
The condensation procedure and equipment of the vapor can be omitted, separating out salt after liquid evaporation concentration in crystallizer 542 obtains solid-liquid mixing
Thing, the solidliquid mixture are pumped into suspension thickener 545；The equipment for separating liquid from solid 55 includes centrifuge 551, salt recycling can
552 and mother liquor tank 553, the entrance of the centrifuge be connected with suspension thickener 545 outlet, the centrifuge 551 is consolidated
Body outlet connects with salt recycling can 552, and the liquid outlet of the centrifuge 551 connects with mother liquor tank 553, the mother liquor tank
553 are connected by Valve controlling pump with leaching wash mill 52 and MVR devices 54, and solid-liquid point is completed under the effect of centrifuge 551
From the solid of separation enters salt recycling can 552, can be used in Snow Agent etc., and purity is high, poisons side effect without environment, separation
Liquid enters mother liquor tank 547 and carries out purity detecting, the blowback leaching wash mill 52 if impurity content is unqualified, if impurity content
In qualified then blowback MVR devices 54, the salt remained in mother liquor tank 553 can either be reused, zero-emission is realized, is able to ensure that again
Reclaim the purity of salt.
The escape pipe of the smoke eliminator 7 is connected to chimney by air exhauster, will purify waste gas up to standard and discharges.
The comprehensive utilization of the high saliferous chemical engineering sludge of embodiment 2
Step 1：High saliferous chemical engineering sludge is crushed to particle diameter 3-12mm, sludge and lime, chaff shell, biomass fuel according to
Mass ratio 45：5：15：35 ratio is mixed to prepare mixture, and the particle diameter of the chaff shell is 2-8mm, described biomass fuel
Particle diameter is 1-8mm, and caloric value is 5000 kilocalories；
Step 2：Mixture obtained by step 1 is sent into the negative-pressure cyclic accumulation of heat described in embodiment 1 and burns reclaimer
In car-type CIU, the thickness of the mixture is 500mm, the gait of march 0.16m/s of mixture, and igniting is burned, warp
The waste gas that smoke eliminator 7 is discharged meets the standard of European Union 2000, the salt rate of recovery 90%, and purity (content of organics) is less than 1%.
The comprehensive utilization of the high saliferous chemical engineering sludge of embodiment 3
Step 1：High saliferous chemical engineering sludge is crushed to particle diameter 4-10mm, sludge and lime, chaff shell, biomass fuel according to
Mass ratio 60：2：10：28 ratio is mixed to prepare mixture, and the particle diameter of the chaff shell is 2-8mm, described biomass fuel
Particle diameter is 1-8mm, and caloric value is 5000 kilocalories；
Step 2：Mixture obtained by step 1 is sent into the negative-pressure cyclic accumulation of heat described in embodiment 1 and burns reclaimer
In car-type CIU, the thickness of the mixture is 700mm, the gait of march 0.08m/s of mixture, and igniting is burned, warp
The waste gas that smoke eliminator 7 is discharged meets the standard of European Union 2000, the salt rate of recovery 92%, and purity (content of organics) is less than 1%.
The comprehensive utilization of the high saliferous chemical engineering sludge of embodiment 4
Step 1：High saliferous chemical engineering sludge is crushed to particle diameter 5-8mm, sludge and lime, chaff shell, biomass fuel according to
Mass ratio 75：0：10：15 ratio is mixed to prepare mixture, and the particle diameter of the chaff shell is 2-8mm, described biomass fuel
Particle diameter is 1-8mm, and caloric value is 5000 kilocalories；
Step 2：Mixture obtained by step 1 is sent into the negative-pressure cyclic accumulation of heat described in embodiment 1 and burns reclaimer
In car-type CIU, the thickness of the mixture is 900mm, the gait of march 0.05m/s of mixture, and igniting is burned, warp
The waste gas that smoke eliminator 7 is discharged meets the standard of European Union 2000, the salt rate of recovery 86%, and purity (content of organics) is less than 1%.
Claims (10)
1. a kind of harmlessness disposing method of comprehensive utilization of high saliferous chemical engineering sludge, comprises the following steps：
Step 1：It is 3-12mm mesh that high saliferous chemical engineering sludge is crushed into particle diameter, with lime, chaff shell, biomass fuel according to quality
Compare 40-80：0-5：10-20：10-35 ratio is mixed to prepare mixture, and the particle diameter of the chaff shell is 2-8mm, described biology
The particle diameter of matter fuel is 1-8mm, and caloric value is 4500-6500 kilocalories；
Step 2：Step 1 gains are delivered in negative-pressure cyclic accumulation of heat burning reclaimer and carry out burning recycling, it is described
The thickness of step 1 gains is no more than 900mm, and the speed of conveying is 0-2m/s, and reclaimer is burned in the negative-pressure cyclic accumulation of heat
Including hybrid system (1), car-type CIU (2), exhausting system (3), smoke circulating system (4), salt recovery system (5),
Transmission system (6) and flue gas purification system (7)；
The hybrid system (1) includes multiple feed bins (11), weighing balance (12), mixed stirring device (13), the feed bin (11)
Discharging opening alignment weighing balance (12) weighing plate, the weighing plate of the weighing balance (12) and the charging of mixed stirring device (13)
Mouth is corresponding, the discharging opening connection transmission system (6) of the mixed stirring device (13), lime, chaff shell and life in feed bin (11)
Biomass fuel is sent into mixed stirring device (13) after weighing balance (12) weighing and mixes to obtain with high saliferous chemical engineering sludge
Mixture described in step 1, communicated system (6) are sent into car-type CIU (2)；
The car-type CIU (2) includes distributing device (20), preheating cover (21), track (22) and moved on track (22)
Series connection chassis (23), the track (22) is divided into cloth section, preheating igniting section, incineration section and cooling section from front to back,
The cloth section of distributing device (20) respective carter (22), the preheating cover (21) is interior to be provided with igniter (25), the preheating cover
(21) it is provided with exhaust gas inlet (26) and fuel nozzle (27), the preheating igniting section of respective carter (22), the track (22)
It is tightly connected with smoke circulating system (4) above incineration section, the preheating igniting section of the track (22), incineration section and cooling section
Lower section is tightly connected with exhausting system (3)；
The exhausting system (3) includes multiple with being tightly connected below the preheating igniting section of track (22), incineration section and cooling section
Draught hood (31), each draught hood (31) connects a set of air draft pipeline being made up of exhaust column (32) and air exhauster (33), institute
State and steam-water separator (34) be provided between exhaust column (32) and air exhauster (33), the water outlet end of the steam-water separator (34) with
Salt recovery system (5) connects；
The smoke circulating system (4) includes the flue gas cover (41) that multiple incineration section upper seals with track (22) are connected, often
Exhaust gas entrance (42) is equipped with individual flue gas cover (41) and fresh air matches somebody with somebody entrance (43), the exhaust gas entrance (42) of the flue gas cover (41)
Connected with the tail end of upper level air draft pipeline；
The salt recovery system (5) includes the ball mill device (51) of pipeline connection, leaching wash mill (52), pH regulation tanks successively
(53), MVR devices (54) and equipment for separating liquid from solid (55)；
The escape pipe of the smoke eliminator (7) is connected to chimney by air exhauster, will purify waste gas up to standard and discharges.
2. the method as described in claim 1, it is characterised in that：High saliferous chemical engineering sludge described in step 1, lime, chaff shell and
The mass ratio of biomass fuel is 50-80：1-5：10-15：10-35；Mixture thickness described in step 2 is 300-900mm,
Gait of march is 0.2-1.5m/s.
3. the method as described in claim 1, it is characterised in that：The ball mill device (51) is by ball mill (511), entrance and ball
Water spray dust collecting box (512) and some waste residue feed bins (513) composition of grinding machine (511) outlet, the waste residue feed bin (513)
Entrance and Water spray dust collecting box (512) outlet, the outlet of the waste residue feed bin (513) is with leaching wash mill (52)
Connection, stored into Water spray dust collecting box (512) after dust removal process to waste residue feed bin (513).
4. the method as described in claim 1, it is characterised in that：The leaching wash mill (52) include it is multistage by agitator tank,
The leaching wash of filter press and transfer tank composition, every grade is leached in wash, and agitator tank outlet connects with filter press entrance
Logical, the solid outlet of filter press connects with the agitator tank material inlet of next stage leaching wash, the liquid outlet of filter press
Connected with transfer tank entrance, the outlet that the first order leaches the transfer tank of wash connects with pH regulation tanks (53), other at different levels
The outlet for leaching the transfer tank of wash connects with the agitator tank leaching solvent entrance of upper level leaching wash, the first order
Leach the disengaging colvent inlet of the agitator tank of wash while the water outlet end with the steam-water separator (34) of exhausting system (3)
Outlet and next stage leach the outlet of wash transfer tank.
5. method as claimed in claim 4, it is characterised in that：The leaching wash mill (52) includes the first agitator tank
(521), in the first filter press (522), the first transfer tank (523), the second agitator tank (524), the second filter press (525), second
Turn tank (526), the 3rd agitator tank (527), the 3rd filter press (528) and the 3rd transfer tank (529), first agitator tank
(521) material inlet connects with waste residue feed bin (513) outlet, and the leaching solvent entrance of first agitator tank (521) is with taking out
The water outlet end outlet connection of the steam-water separator (34) of wind system (3), the outlet of first agitator tank (521) and the first pressure
Filter (522) connects, and the solid outlet of first filter press (522) connects with the material inlet of the second agitator tank (524), institute
The liquid outlet for stating the first filter press (522) connects with the entrance of the first transfer tank (523), the first transfer tank (523)
Outlet adjusts tank (53) with pH and connected, and the outlet of second agitator tank (524) is connected with the second filter press (525), and described the
The solid outlet of two filter presses (525) connects with the entrance of the 3rd agitator tank (527), the liquid of second filter press (525)
Outlet connects with the entrance of the second transfer tank (526), outlet and the first agitator tank (521) of the second transfer tank (526)
Leaching solvent entrance is connected, and the outlet of the 3rd agitator tank (527) is connected with the 3rd filter press (528), the 3rd press filtration
The solid outlet of machine (528) is stacked pond with filter residue and is connected, the liquid outlet and the 3rd transfer tank of the 3rd filter press (528)
(529) connect, the outlet of the 3rd transfer tank (529) connects with the leaching solvent entrance of the second agitator tank (524).
6. the method as described in claim 1, it is characterised in that：PH meter is provided with the pH regulation tanks (53) and pH agent is added
Box, regulation pH adjust the liquid pH to 7-8 in tank (53).
7. the method as described in claim 1, it is characterised in that：The MVR devices (54) include heater (541), crystallizer
(542), separator (543), vapour compression machine (544) and suspension thickener (545), the heater (541) and crystallizer
(542) connect, vapours heat supply provided for crystallizer (542), the top of the crystallizer (542) by separator (543) with
Vapour compression machine (544) connects, and the bottom of the crystallizer (542) connects with suspension thickener (545), the vapour compression machine
(544) outlet connects with heater (541).
8. the method as described in claim 1, it is characterised in that：The equipment for separating liquid from solid (55) includes centrifuge (551), salt
Recycling can (552) and mother liquor tank (553), the entrance of the centrifuge are connected with the outlet of (545) in suspension thickener, it is described from
The solid outlet of scheming (551) connects with salt recycling can (552), liquid outlet and the mother liquor tank (553) of the centrifuge (551)
Connection, the mother liquor tank (553) are connected by Valve controlling pump with leaching wash mill (52) and MVR devices (54).
9. the method as described in any one of claim 1-8, it is characterised in that：With being connected below track (22) preheating igniting section
The tail end of air draft pipeline connected with flue gas purification system (7), with the tail of the air draft pipeline connected below track (22) incineration section
End connects with next stage smoke circulating system (4), and the afterbody air draft pipeline connected with track (22) incineration section lower section goes out
Mouth connects with exhaust gas inlet (26), is connected with the air draft pipeline connected below track (22) cooling section with sinter machine discharge end dedusting device.
10. the method as described in any one of claim 1-8, it is characterised in that：The distributing device (20) is spiral cloth
Device, it is interior to be provided with material scattering device (24), the cloth section of respective carter (22)；The fresh air of flue gas device (4) described in step 2 is matched somebody with somebody
Entrance is provided with blast pipe regulating valve, by controlling its aperture to control the amount of allocating of fresh air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109502941A (en) * | 2018-12-28 | 2019-03-22 | 重庆盎瑞悦科技有限公司 | Cooperate with cement plant using the method for self- propagating pyrolysis installation processing sludge |
| CN109519928A (en) * | 2018-12-28 | 2019-03-26 | 重庆盎瑞悦科技有限公司 | Method and system containing organic materialization work abraum salt are handled using self- propagating pyrolysismethod |
| WO2019062350A1 (en) * | 2017-09-26 | 2019-04-04 | 重庆盎瑞悦科技有限公司 | Harmless treatment method and system for domestic sludge |
| CN113307512A (en) * | 2021-05-07 | 2021-08-27 | 北京卡卢金热风炉技术有限公司 | Lime preparation device and lime preparation method |
| CN115520881A (en) * | 2022-10-13 | 2022-12-27 | 中国天辰工程有限公司 | Resource utilization method and system for waste salt with high content of organic matters |
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| CN115520881A (en) * | 2022-10-13 | 2022-12-27 | 中国天辰工程有限公司 | Resource utilization method and system for waste salt with high content of organic matters |
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Denomination of invention: A comprehensive utilization method for harmless disposal of high salinity chemical sludge Granted publication date: 20181204 Pledgee: Chongqing Rural Commercial Bank Co.,Ltd. Dadukou Branch Pledgor: CHONGQING ANGRUIYUE SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2024500000041 |