CN106916612B - The method for improving sludge water-coal-slurry slurry performance by sludge pretreatment - Google Patents
The method for improving sludge water-coal-slurry slurry performance by sludge pretreatment Download PDFInfo
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- 239000010802 sludge Substances 0.000 title claims abstract description 180
- 239000003250 coal slurry Substances 0.000 title claims abstract description 63
- 239000002002 slurry Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000000654 additive Substances 0.000 claims abstract description 40
- 230000000996 additive effect Effects 0.000 claims abstract description 38
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 230000003750 conditioning effect Effects 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 9
- 239000002817 coal dust Substances 0.000 claims abstract description 7
- -1 sulphur sodium-benzene Vinyl sulfonic acid sodium-sodium maleate Chemical compound 0.000 claims description 18
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 16
- 230000018044 dehydration Effects 0.000 claims description 11
- 238000006297 dehydration reaction Methods 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 11
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- 239000011780 sodium chloride Substances 0.000 claims description 8
- ZITVKGIRQCDOSX-UHFFFAOYSA-N 1h-cyclopropa[a]naphthalene Chemical compound C1=CC=CC2=C3CC3=CC=C21 ZITVKGIRQCDOSX-UHFFFAOYSA-N 0.000 claims description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 4
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000010842 industrial wastewater Substances 0.000 claims description 4
- 239000001103 potassium chloride Substances 0.000 claims description 4
- 235000011164 potassium chloride Nutrition 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000009977 dual effect Effects 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 48
- 208000005156 Dehydration Diseases 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000002802 bituminous coal Substances 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000011282 treatment Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 125000000524 functional group Chemical group 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 210000002421 cell wall Anatomy 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000010148 water-pollination Effects 0.000 description 3
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- JNRLEMMIVRBKJE-UHFFFAOYSA-N 4,4'-Methylenebis(N,N-dimethylaniline) Chemical compound C1=CC(N(C)C)=CC=C1CC1=CC=C(N(C)C)C=C1 JNRLEMMIVRBKJE-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical group [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to sludge disposal technologies, it is desirable to provide a method of sludge water-coal-slurry slurry performance is improved by sludge pretreatment.This method is that conditioner is first added into sludge, is radiated using microwave after mixing, improves the physics and chemical characteristic of sludge by pretreatment；It is used further to be prepared into sludge water-coal-slurry with coal dust, water and slurries additive agent blending by pretreated conditioning sludge.The conditioner is villaumite, and additive amount is the 0.5~1% of sludge quality；The frequency of microwave is 2450MHz or 900MHz, and microwave irradiation time is 0.5~3min.Simple possible of the present invention, turns waste into wealth, and has obvious social and economic benefits, and is a kind of effective minimizing, innoxious, recycling mode.Using conditioner and the dual pretreatment modification of microwave radiation, method is easy to implement, easy to operation, but the effect highly significant obtained, can increase substantially the concentration and sludge blending amount of sludge water-coal-slurry, reduces sludge water-coal-slurry viscosity.
Description
Technical field
The present invention relates to sludge disposal technology, more particularly to a kind of method improving sludge water-coal-slurry slurry performance.Specifically
Method is first to pre-process sludge, then prepare sludge water-coal-slurry with blending such as coal, water, additives, and dirt is greatly improved with this
The slurry concentration of muddy water coal slurry increases sludge blending amount.
Background technology
China's fossil energy characteristic distributions are rich coal, oil-poor, gas, coal account in the primary energy consumption structure in China less
60% or more, this production of energy and consumption s tructure based on coal will not change within the longer term, and therefore, coal is in China
Particularly significant status is occupied in the national economic development and people's lives.Water-coal-slurry is a kind of novel coal base fluid state clean fuel,
It is made of the water of the fine coal of 60-70% or so, 30-40% or so and the chemical addition agent of 0.5-1% or so, water-coal-slurry was both kept
The original physical characteristic of coal, and can be flowed as liquid-fuel oil, store, stir, spray burning and gasification, current
Under oil supply more stressful situation, fuel oil and combustion gas can be replaced, be a kind of ideal boiler oil and gasified raw material.Water coal
Since slurry technology was born from the upper world 70-80 ages, relatively broad application, including various industrial pots have at home and abroad been obtained
Stove, station boiler, metallurgical, building materials kiln, chemical industry gasification furnace etc..
With economic and society fast development, the amount of sludge of city and Industrial Waste Water Treatments factory also increases considerably,
Since sludge not only contains a large amount of organic matter, contain poisonous and harmful substance, such as pathogenic microorganism, bacterium, heavy metal simultaneously,
Intractability is big, of high cost, easily causes secondary pollution.How high-efficiency cleaning handles these sludge at low cost, makes city and work
Industry, social development sustainability, it has also become problem in the urgent need to address.Sludge disposal technology conventional at present have it is agricultural,
Landfill, burning etc., especially incineration technology is considered as the thorough sludge reduction of comparison, innoxious, recycling.But one
As the sludge of sewage treatment plant's manufacture be wet mud after mechanical dehydration, moisture content still reaches 80% or more, it is difficult into
Row directly burns or blends coal combustion, and moisture is needed further to be removed to 40% or so, could carry out burning or burning is handled,
However moisture is removed to 40% from 80% or so, it is also necessary to consume a large amount of thermal energy, influence economic benefit.In recent years by wet dirt
It is a kind of completely new, effective recycling sludge utilization that mud directly prepares sludge water-coal-slurry with substances blending such as coal, water, additives
Method.The technology need not be carried out dehydrating the wet mud after mechanical dehydration again, and the high-moisture processing in sludge is proper also
The clear water needed for slurrying can be saved, not only saves the thermal energy of a large amount of dehydrations in this way, and simplifies technique and technology, is carried
The economy that high sludge utilizes.In addition, water-coal-slurry of the burning containing sludge can not only handle a large amount of sludge, and profit can be recycled
With its calorific value, the purpose to turn waste into wealth is realized.
Since mud component is sufficiently complex, after existing research shows water-coal-slurry blending sludge, slurry concentration can be substantially
Degree declines, and can rise into slurry viscosity.The reason is that：1) it is the cellular water (water inside microbial cell compared with juicy in sludge
Point), still preservation can't be the Free water of flowing in cell after being prepared into water-coal-slurry, and final moisture accounting is made to improve,
That is the solid concentration of slurry has dropped；2) there are a large amount of cotton-shaped tissues in sludge, this structure has powerful water absorbing capacity, quilt
The moisture of absorption cannot equally flow freely, and the moisture of lubricating action has been made to reduce, and slurry concentration decline or viscosity is caused to rise.
3) oxygen-containing functional group of the extracellular polymeric in sludge and particle surface has very strong hydrophily, can a large amount of beams in water-coal-slurry
Tie up moisture, be allowed to can't be Free water and the concentration and viscosity that influence water-coal-slurry.Work as wet mud blending amount according to studies have shown that
When being 15% (accounting of wet mud and dry pulverized coal), the concentration of water-coal-slurry can be made to decline 10 percentage points or more.And develop sludge
The purpose of water-coal-slurry is to want blending sludge quantity as much as possible, saves coal resources, economy and social benefit is improved, to reach
The purpose of energy-saving and emission-reduction.The concentration of sludge water-coal-slurry and the blending amount of sludge are how improved, sludge water-coal-slurry viscosity is reduced, is solution
The certainly key of sludge water-coal-slurry slurry performance, it has also become the hot issue of people's common concern.
Therefore, a kind of blending amount that can increase sludge in water-coal-slurry is developed, the slurry concentration of sludge water-coal-slurry is improved, is dropped
The technical method of the viscosity of low sludge water-coal-slurry reduces Treatment of Sludge cost, accelerates to handling city and industrial sludge on a large scale
The minimizing of sludge, innoxious, comprehensive utilization of resources is significant.
Invention content
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, propose that one kind passing through sludge pretreatment
The method for improving sludge water-coal-slurry slurry performance.This method can improve the concentration and blending amount of sludge water-coal-slurry, reduce sludge water
The viscosity of coal slurry.
In order to solve the above technical problems, the solution of the present invention is：
A kind of method improving sludge water-coal-slurry slurry performance by sludge pretreatment is provided, is first to add to adjust into sludge
Agent is managed, is radiated using microwave after mixing, improves the physics and chemical characteristic of sludge by pretreatment；By pretreated
Conditioning sludge is used further to be prepared into sludge water-coal-slurry with coal dust, water and slurries additive agent blending；
The conditioner is villaumite, and additive amount is the 0.5~1% of sludge quality；The frequency of microwave be 2450MHz or
900MHz, microwave irradiation time are 0.5~3min.
In the present invention, the sludge is the activated sludge or its machine of generation during municipal sewage or Industrial Waste Water Treatments
Tool dehydration product, 80% or more moisture content.
In the present invention, the slurries additive agent is：Methanonaphthalene sulphur sodium-sodium styrene sulfonate-sodium maleate, methylene
Base naphthalenesulfonate formaldehyde condensation compound or calcium lignosulfonate.
In the present invention, the conditioner is sodium chloride, potassium chloride or calcium chloride.
In the present invention, in manufactured sludge water-coal-slurry, the mass concentration percentage of each component is：By 80% folding of moisture content
Conditioning sludge 10~20%, coal dust 52.5~62.2%, water 17~37%, the slurries additive agent 0.5~0.8% of calculation.
Inventive principle explanation：
Sludge is due to containing largely stable cellular water, extremely strong in the organic extracellular polymeric and hydrophily of flocculent structure
Oxygen-containing functional group, after so that it is blended preparation water-coal-slurry with coal, the solid phase mass concentration of slurry declines to a great extent, and affects mixing for sludge
Mixed amount, general mixing proportion is 15% hereinafter, otherwise will make that slurry viscosity is substantially increased or slurry concentration declines to a great extent, even
50% is down to hereinafter, lose rational economic benefit, influences popularization and application.Therefore, the cell wall in sludge how is destroyed, is made
Water becomes the water flowed freely；Flocculent structure in sludge is smashed, extracellular polymeric is destroyed, weakens moisture holding capacity；Improve or decomposes
Oxygen-containing functional group in sludge mitigates the hydrophily etc. on mud granule surface, is the key that improve sludge water-coal-slurry slurry performance.This
Invention eliminates as much as the above problem, then prepares sludge water coal with coal blending again by first carrying out quenched pretreatment to sludge
Slurry, this is undoubtedly a kind of efficient Technology Ways for improving sludge water-coal-slurry concentration and sludge blending amount.
The present invention proposes to utilize conditioner and the dual preprocess method of microwave radiation.Since the dielectric property of sludge is not strong,
It is weaker to the absorbability of microwave, directly use microwave irradiation effect bad, villaumite conditioner can improve the dielectric property of mud, by force
Change ionic conduction, improves transformation efficiency and sludge radiation temperature of the microwave energy in sludge.Microwave have special thermal effect and
Selective heating feature etc., while high degree of agitation inside sludge can be caused to cause localized hyperthermia and height under the auxiliary of conditioner
Pressure destroys the cell wall of microorganism in sludge, decomposes oxygen-containing functional group；In addition, will produce free radical in the radiative process of microwave
With stimulated activity oxygen, there is strong oxidisability, can decompose and destroy organic extracellular polymeric in sludge；Microwave also has viscosity reduction
Effect can reduce the steric hindrance of system, promote sludge preferably soluble in water.
Under chlorate conditioner and microwave radiation double action, the cell wall of microorganism will be destroyed in sludge, cell
Water outflow becomes the Free water needed in slurrying, achievees the purpose that play lubricating action between coal particle and mud granule；Sludge
In the broken destruction of cotton-shaped tissue, extracellular polymeric is decomposed, the cell wall, carbohydrate based on organic matter it is thin
Born of the same parents organize and grease will be decomposed, and irreducible water and cellular water in mud granule is promoted to be released；In high temperature and pressure and conditioning
Under agent effect, a large amount of oxygen-containing functional group in mud granule surface will also decompose, and mud granule surface hydrophilicity is thoroughly improved；
This external radiation and conditioning can adjust sludge colloid grains subgroup ordered state, overcome electric exclusion effect and aquation, reduce
The affinity of itself and water reduces the water retention property of sludge flco.Any of the above effect can efficiently improve being slurried for sludge and coal
Characteristic.It is blended by a certain percentage with coal, water and additive again by pretreated conditioning sludge and is prepared into sludge water-coal-slurry.
In the present invention, by adjusting the additive amount of water in blending procedure, make consolidating in final sludge water-coal-slurry obtained
The mass concentration of body is 55-67%.Compared with conventional sludge water-coal-slurry, by pretreated sludge water-coal-slurry slurry concentration or
Sludge blending amount can greatly improve, and slurry viscosity declines.
Compared with prior art, technical advantage of the invention is：
(1) COAL-WATER SLURRY TECHNOLOGY is utilized to handle sludge, method simple possible turns waste into wealth, and has apparent social and economical
Benefit is a kind of effective minimizing, innoxious, recycling mode.
(2) conditioner and the dual pretreatment modification of microwave radiation are utilized, method is easy to implement, easy to operation, but obtain
Effect highly significant can increase substantially the concentration and sludge blending amount of sludge water-coal-slurry, reduce sludge water-coal-slurry viscosity.
Description of the drawings
Fig. 1 is the flow diagram that sludge pretreatment prepares sludge water-coal-slurry in the present invention.
Reference numeral：1. sludge；2. crusher；3. mixing arrangement；4. conditioner；5. microwave radiation device；6. slurrying fills
It sets；7. coal dust；8. water；9. additive；10. slurry can.
Specific implementation mode
Embodiment below can make the technical staff of this professional skill field more fully understand the present invention, but not to appoint
Where formula limitation is of the invention.
As shown in Figure 1, the present invention carries out pretreatment modification using conditioner and microwave to sludge, sludge water-coal-slurry is improved
Slurry concentration (or reducing into slurry viscosity) and sludge blending amount.Specific method：1. 2. sludge passes through conventional crusher, make sludge
Granular size is crushed to 5mm hereinafter, 4. carrying out mechanical mixture with powdery conditioner in mixing transposition 3., mixing arrangement can be
Common mechanical formula mixing device；The sludge of blending conditioner enters back into microwave radiation device and 5. carries out quenched pretreatment, the microwave
Radiation appliance can be common microwave stove or similar device, and the residence time is 0.5-3 points in microwave, and microwave power is according to pre- place
The amount of sludge is managed to determine；6. pretreated conditioning sludge enters back into pulping device, at the same be added coal dust 7., water 8. and water coal
9. slurry additive is prepared into sludge water-coal-slurry together, pulping device can be currently used water-coal-slurry ball mill by wet process slurrying work
Process and equipment, water are general industry water or the waste water of suitable slurrying, and additive is common slurries additive agent, such as methanonaphthalene
Sulphur sodium-sodium styrene sulfonate-sodium maleate, methylene naphthalenesulfonate formaldehyde condensation compound, calcium lignosulfonate etc..Prepare completion
Sludge water-coal-slurry is spare in being placed in slurry can 10..
In following each embodiments, sludge is the activated sludge or its machine of generation during municipal sewage or Industrial Waste Water Treatments
Tool dehydration product, (percent mass ratio of sludge or conditioning sludge in each embodiment presses moisture content to 80% or more moisture content
80% conversion).
Embodiment 1：
Material：
Sludge is sludge of the Hangzhou sewage treatment plant after mechanical dehydration, and moisture content is about 80%.Coal is Shandong Yan
State bituminous coal, air-dried moisture, ash content, volatile matter and fixed carbon are respectively 1.18%, 15.24%, 29.50% and 54.08%.Add
It is methanonaphthalene sulphur sodium-sodium styrene sulfonate-sodium maleate to add agent.
Step：
According to water coal slurry concentration is estimated, wet mud, coal (granularity≤4mm), water and the additive needed for slurrying are calculated
Dosage.Sludge is packed into frequency conversion without pretreatment, by the sludge of corrresponding quality, the water of coal particle and corresponding ratio, additive
In planetary ball mill, shared volume is about the one third of ball mill tank volume, then will be certain according to test requirements document
(diameter of big ball, middle ball and bead is respectively the steel ball of proportioning：20mm, 10mm, 6mm) it is added in tank, housing is shut, is set
After the rotating speed of ball mill, the parameters such as the cycle of operation and run time that commutate, start ball mill, prepares water-coal-slurry.
Each component percent mass ratio：
Sludge：10%, coal：52.5%, water：37%, additive：0.5%.
Embodiment 2：
Material：
Sludge is the sludge after the sewage disposal of Nanjing petroleum chemical enterprise, and moisture content is about 80%.Coal is Yanzhou bituminous coal,
Air-dried moisture, ash content, volatile matter and fixed carbon are respectively 1.18%, 15.24%, 29.50% and 54.08%.Additive is
Calcium lignosulfonate.
Step：
According to water coal slurry concentration is estimated, wet mud, coal (granularity≤4mm), water and the additive needed for slurrying are calculated
Dosage.Sludge is packed into frequency conversion without pretreatment, by the sludge of corrresponding quality, the water of coal particle and corresponding ratio, additive
In planetary ball mill, shared volume is about the one third of ball mill tank volume, then will be certain according to test requirements document
(diameter of big ball, middle ball and bead is respectively the steel ball of proportioning：20mm, 10mm, 6mm) it is added in tank, housing is shut, is set
After the rotating speed of ball mill, the parameters such as the cycle of operation and run time that commutate, start ball mill, prepares water-coal-slurry.
Each component percent mass ratio：
Sludge：15%, coal：56.3%, water：28%, additive：0.7%.
Embodiment 3：
Material：
Sludge is sludge of the Hangzhou sewage treatment plant after mechanical dehydration, and moisture content is about 80%.Coal is Shandong Yan
State bituminous coal, air-dried moisture, ash content, volatile matter and fixed carbon are respectively 1.18%, 15.24%, 29.50% and 54.08%.Add
It is methanonaphthalene sulphur sodium-sodium styrene sulfonate-sodium maleate to add agent.Conditioner is potassium chloride.
Step：
According to water coal slurry concentration is estimated, calculate wet mud needed for slurrying, conditioner, coal (granularity≤4mm), water and
The dosage of additive.Sludge is pre-processed, and the sludge of corrresponding quality and conditioner are put into microwave radiation dress after mixing
Set modified 0.5min, microwave power 800w, frequency 2450MHz；The water of modified conditioning sludge, coal particle and corresponding ratio,
Additive is fitted into frequency conversion planetary ball mill, repeats 1 step of embodiment later.
Each component percent mass ratio：
Sludge：10%, coal：52.5%, water：37%, additive：0.5%；Conditioner potassium chloride quality accounts for sludge quality
0.8%.
Embodiment 4：
Material：
Sludge is sludge of the Hangzhou sewage treatment plant after mechanical dehydration, and moisture content is about 80%.Coal is Shandong Yan
State bituminous coal, air-dried moisture, ash content, volatile matter and fixed carbon are respectively 1.18%, 15.24%, 29.50% and 54.08%.Add
It is sodium lignin sulfonate to add agent.Conditioner is calcium chloride.
Step：
According to water coal slurry concentration is estimated, calculate wet mud needed for slurrying, conditioner, coal (granularity≤4mm), water and
The dosage of additive.Sludge is pre-processed, and the sludge of corrresponding quality and conditioner are put into microwave radiation dress after mixing
Set modified 3min, microwave power 800w, frequency 900MHz；The water of modified conditioning sludge, coal particle and corresponding ratio adds
Agent is fitted into frequency conversion planetary ball mill, repeats 1 step of embodiment later.
Each component percent mass ratio：
Sludge：20%, coal：62.2%, water：17%, additive：0.8%；Conditioner calcium chloride quality accounts for sludge quality
0.8%.
Embodiment 5：
Material：
Sludge is the sludge after the sewage disposal of Nanjing petroleum chemical enterprise, and moisture content is about 80%.Coal is Yanzhou bituminous coal,
Air-dried moisture, ash content, volatile matter and fixed carbon are respectively 1.18%, 15.24%, 29.50% and 54.08%.Additive is
Methylene naphthalenesulfonate formaldehyde condensation compound.Conditioner is sodium chloride.
Step：
According to water coal slurry concentration is estimated, calculate wet mud needed for slurrying, conditioner, coal (granularity≤4mm), water and
The dosage of additive.Sludge is pre-processed, and the sludge of corrresponding quality and conditioner are put into microwave radiation dress after mixing
Set modified 1.5min, microwave power 800w, frequency 2450MHz；The water of modified conditioning sludge, coal particle and corresponding ratio,
Additive is fitted into frequency conversion planetary ball mill, repeats 1 step of embodiment later.
Each component percent mass ratio：
Sludge：15%, coal：56.3%, water：28%, additive：0.7%；Conditioner sodium chloride quality accounts for sludge quality
0.8%.
Embodiment 6：
Material：
Sludge is sludge of the Hangzhou sewage treatment plant after mechanical dehydration, and moisture content is about 80%.Coal is Shandong Yan
State bituminous coal, air-dried moisture, ash content, volatile matter and fixed carbon are respectively 1.18%, 15.24%, 29.50% and 54.08%.Add
It is methanonaphthalene sulphur sodium-sodium styrene sulfonate-sodium maleate to add agent.Conditioner is sodium chloride.
Step：
According to water coal slurry concentration is estimated, calculate wet mud needed for slurrying, conditioner, coal (granularity≤4mm), water and
The dosage of additive.Sludge is pre-processed, and the sludge of corrresponding quality and conditioner are put into microwave radiation dress after mixing
Set modified 1.5min, microwave power 800w, frequency 2450MHz；The water of modified conditioning sludge, coal particle and corresponding ratio,
Additive is fitted into frequency conversion planetary ball mill, repeats 1 step of embodiment later.
Each component percent mass ratio：
Sludge：15%, coal：56.3%, water：28%, additive：0.7%；Conditioner sodium chloride quality accounts for sludge quality
0.5%.
Embodiment 7：
Material：
Sludge is sludge of the Hangzhou sewage treatment plant after mechanical dehydration, and moisture content is about 80%.Coal is Shandong Yan
State bituminous coal, air-dried moisture, ash content, volatile matter and fixed carbon are respectively 1.18%, 15.24%, 29.50% and 54.08%.Add
It is methanonaphthalene sulphur sodium-sodium styrene sulfonate-sodium maleate to add agent.Conditioner is sodium chloride.
Step：
According to water coal slurry concentration is estimated, calculate wet mud needed for slurrying, conditioner, coal (granularity≤4mm), water and
The dosage of additive.Sludge is pre-processed, and the sludge of corrresponding quality and conditioner are put into microwave radiation dress after mixing
Set modified 1.5min, microwave power 800w, frequency 2450MHz；The water of modified conditioning sludge, coal particle and corresponding ratio,
Additive is fitted into frequency conversion planetary ball mill, and it is rapid to repeat embodiment 1 later.
Each component percent mass ratio：
Sludge：15%, coal：56.3%, water：28%, additive：0.7%；Conditioner sodium chloride quality accounts for sludge quality
1%.
The performance of sludge water-coal-slurry prepared by various embodiments is as shown in table 1.
Embodiment 1 and embodiment 2 are the performances for the sludge water-coal-slurry that sludge is not prepared by pretreatment in table 1, are implemented
Example 3 to embodiment 7 is the performance for the sludge water-coal-slurry that sludge is prepared after conditioner and the dual pretreatment of microwave radiation.By table
As it can be seen that sludge, after dual pretreatment modification, under equivalent viscosities, sludge water-coal-slurry solid concentration and sludge blending measure
(such as embodiment 4 is compared with embodiment 2) is improved by a relatively large margin, and fluidity of slurry improves；Under same sludge blending amount, sludge
Viscosity in aqueous coal slurries obtains decline by a relatively large margin, and (such as embodiment 5,6,7 is compared with embodiment 2,1 phase of embodiment 3 and embodiment
Than), and the mobility of slurry improves.
In conclusion the present invention to sludge after pretreatment modification, the slurry performance of sludge water-coal-slurry can be made to obtain greatly
Width improves.
Claims (4)
1. the method for improving sludge water-coal-slurry slurry performance by sludge pretreatment, which is characterized in that be first to be added into sludge
Conditioner is radiated using microwave after mixing, and passing through pretreatment improves the physics and chemical characteristic of sludge；After pretreatment
Conditioning sludge be used further to coal dust, water and slurries additive agent blending be prepared into sludge water-coal-slurry；
The conditioner is sodium chloride, potassium chloride or calcium chloride, and additive amount is the 0.5~1% of sludge quality；The frequency of microwave
For 2450MHz or 900MHz, microwave irradiation time is 0.5~3min.
2. according to the method described in claim 1, it is characterized in that, the sludge is municipal sewage or Industrial Waste Water Treatments mistake
The activated sludge generated in journey or its mechanical dehydration product, 80% or more moisture content.
3. according to the method described in claim 1, it is characterized in that, the slurries additive agent is：Methanonaphthalene sulphur sodium-benzene
Vinyl sulfonic acid sodium-sodium maleate, methylene naphthalenesulfonate formaldehyde condensation compound or calcium lignosulfonate.
4. according to the method described in claims 1 to 3 any one, which is characterized in that in manufactured sludge water-coal-slurry, respectively
The mass concentration percentage of component is：Conditioning sludge 10~20%, coal dust 52.5~62.2%, the water converted by moisture content 80%
17~37%, slurries additive agent 0.5~0.8%.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260555A (en) * | 2011-06-28 | 2011-11-30 | 浙江大学 | Method for changing specific physical and chemical characteristics of coal by utilizing microwave for improving slurry forming performance |
| CN103421558A (en) * | 2012-05-15 | 2013-12-04 | 通用电气公司 | Preparation apparatus and preparation method of coal water slurry |
| CN104388137A (en) * | 2014-12-12 | 2015-03-04 | 湖南科技大学 | Method for preparing high concentration sludge coal slurry from urban sludge |
| CN104962331A (en) * | 2015-07-03 | 2015-10-07 | 中国东方电气集团有限公司 | Method for preparing coal water slurry from low-rank coal |
| CN105695008A (en) * | 2014-11-27 | 2016-06-22 | 通用电气公司 | Method and apparatus for preparing coal water slurry |
-
2017
- 2017-02-24 CN CN201710103018.8A patent/CN106916612B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260555A (en) * | 2011-06-28 | 2011-11-30 | 浙江大学 | Method for changing specific physical and chemical characteristics of coal by utilizing microwave for improving slurry forming performance |
| CN103421558A (en) * | 2012-05-15 | 2013-12-04 | 通用电气公司 | Preparation apparatus and preparation method of coal water slurry |
| CN105695008A (en) * | 2014-11-27 | 2016-06-22 | 通用电气公司 | Method and apparatus for preparing coal water slurry |
| CN104388137A (en) * | 2014-12-12 | 2015-03-04 | 湖南科技大学 | Method for preparing high concentration sludge coal slurry from urban sludge |
| CN104962331A (en) * | 2015-07-03 | 2015-10-07 | 中国东方电气集团有限公司 | Method for preparing coal water slurry from low-rank coal |
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