CN104593115A - Method for preparing artificial coal from household garbage and household sludge - Google Patents
Method for preparing artificial coal from household garbage and household sludge Download PDFInfo
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- CN104593115A CN104593115A CN201510022220.9A CN201510022220A CN104593115A CN 104593115 A CN104593115 A CN 104593115A CN 201510022220 A CN201510022220 A CN 201510022220A CN 104593115 A CN104593115 A CN 104593115A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention discloses a method for preparing artificial coal from household garbage and household sludge. The artificial coal is prepared by mixing the following treated components in parts by weight: 10-80 parts of straws, 10-20 parts of waste asphalt, 10-80 parts of household sludge and 10-80 parts of household garbage, adding water, uniformly stirring and pressing under the condition of 15-20MPa, wherein each component is treated by the method comprising the following steps: pulverizing the straws until the particle size is not more than 5mm; pulverizing the waste asphalt until the particle size is not more than 5mm; deodorizing and modifying the household sludge, carrying out press filtration, dehydrating, drying until the moisture content is not more than 20% and pulverizing; and deodorizing the household garbage, sterilizing, carrying out magnetic separation to remove metal substances, sieving with a rotary sieve to remove the fine materials of which the particle size is not more than 50mm, winnowing to remove plastic, and drying and pulverizing until particle size is not more than 5mm. The artificial coal prepared by the method, which is disclosed by the invention is higher in thermal value and can be widely applicable to multiple industrial heat supply processes such as preparation of bricks in a kiln.
Description
Technical field
The present invention relates to and a kind ofly utilize domestic refuse, method that domestic sludge prepares artificial coal.
Background technology
Domestic sludge is the end product of city domestic sewage treating processes, and existing sewage disposal technology passes through metabolism and the physico-chemical process of microorganism, is transferred in a large number in mud by the pollutent in sewage, to reach the object purified water.The essence of water treatment is the phase transition of part pollutent, and while water quality is purified, great amount of soluble pollutent becomes soluble solid, is separated as mud, is generally rich in organism, germ etc., can say that mud is the pollutent be concentrated.
After domestic sludge is removed in water treatment plant, generally carry out burning, landfill or pile up, other is without this domestic sludge of way process.Adopt burying method not only to take a large amount of soil, and pollutent can be made finally to immerse underground, secondary pollution is caused to soil, underground water etc., unfavorable for environment; Although burn and can reach innoxious and resource utilization, present domestic overall technology level is low, also can form a large amount of smog, contaminate environment.
Domestic sludge complicated component, the aggregate that the zoogloea formed by multiple-microorganism and the organism of absorption thereof and inorganics form, except containing except large quantity of moisture, also contain the organism of difficult degradation, heavy metal and salt and a small amount of pathogenic micro-organism and parasitic ovum etc.
City all can produce a large amount of domestic refuses every day, because China fails to carry out effective refuse classification on domestic waste, so rubbish effectively cannot reclaim second stage employ always.A large amount of city house refuse treatment methods generally carries out landfill, and some uses the way process of burning.The general periphery in city can have refuse landfill, and the dumper all needing into team every day is ceaselessly travelled to and fro between refuse landfill and dumped rubbish.Garbage loading embeading is very huge for the harm of environment, quite serious to the pollution of underground water, causes a significant threat the life health of surrounding resident.
Stalk is the general name of ripe farm crop cauline leaf (fringe) part.Be often referred to wheat, paddy rice, corn, potato class, oil plant, cotton, sugarcane and other farm crop remainder after results seed.Because tangerine bar is worth low, substantially pricelessly to plant, present peasant does not generally reclaim tangerine bar, tangerine bar is burnt in field, a large amount of and dense smoke will be produced in the process of burning tangerine bar, dense smoke floats and is difficult to diffusion in atmosphere, severe contamination the quality of air, so, Mei Suo government department all organizes special taboo to burn the propaganda work of tangerine bar, field, surrounding city rural area is forbidden to burn tangerine bar, but practical situation are straw sandals prohibits incessantly, because the value that tangerine bar does not reclaim really, if reclaim these nugatory tangerine bars, a large amount of labor forces can be taken on the contrary, if tangerine bar does not process in field, the agriculture production in next season cannot be carried out, so the process of tangerine bar is the problem of a unusual contradiction always.
Summary of the invention
In order to solve a large amount of field straw in prior art, domestic refuse, domestic sludge the like waste cannot the problem of effective recycling, the invention provides and a kind ofly utilizes domestic refuse, artificial coal prepared by domestic sludge, is turned waste into wealth by rubbish, has saved resource.
Of the present inventionly utilize domestic refuse, method that domestic sludge prepares artificial coal, be the stalk processed, useless pitch, domestic sludge and domestic garbage mixing are suppressed after adding water and stirring under 15 ~ 20MPa condition form; Each ingredients weight parts proportioning is stalk 10 ~ 80 parts, useless pitch 10 ~ 20 parts, domestic sludge 10 ~ 80 parts, domestic refuse 10 ~ 80 parts;
Wherein each component treatment process is: crushed stalk is to below particle diameter 5mm; Useless asphalt powder is broken to below particle diameter 5mm; Domestic sludge, through deodorizing and modified filter-press dehydration, is dried to water content below 20%, pulverizes; Domestic refuse is successively through the fines of deodorizing sterilizing, magnetic separation removal metal object, trommel screen removal below particle diameter 50mm, and after selection by winnowing removes plastics, residuum ovendry power is broken to below particle diameter 5mm.
In national standard, more than the material of 3000 kilocalories, coal is referred to as to combustion heat value.Coal resource is nonrenewable resource, and its cost of winning is high, exploit the harm of environment large, and a lot of factory needs a large amount of fire coals, as brickmaking factory.Less demanding to fire coal of brickmaking factory itself, can just can to about 1200 DEG C to the temperature increase of brickkiln.Stalk, domestic refuse and domestic sludge all contain large amount of organic, carry out being pressed into coal after the present invention is processed, and effectively can utilize organic matter wherein, and its fuel value can meet the requirement of such as brickmaking factory etc. completely.
Bituminous pavement is along with extending duration of service, under various load, slowly turn crisp, follow the string, harden, occur the catabiosis such as crack, hole groove, need again to repair renovation, a large amount of useless pitch of generation cannot realize recycling, not only can cause environmental pollution, also can cause the waste of bituminous material.Usually useless pitch can be used for preparing regeneration asphalt after multi task process transformation, but with high costs, and productive value is little, and directly burns and can produce volume of smoke, contaminate environment.Research finds, itself and stalk, domestic refuse and domestic sludge mixture is prepared artificial coal, effectively can avoid the defect of asphalt viscosity height incomplete combustion, and four kinds of composition mixture combinations, burn more cmpletely, energy-conserving and environment-protective.
Domestic waste organic content is high, and refuse thermal value substantially at more than 3000kJ/kg, but owing to also comprising the unserviceable composition such as inorganics, metal, has to pass through certain process, could realize higher value application.The present invention adopts successively to the fines that domestic refuse carries out deodorizing sterilizing, metal object is removed in magnetic separation, below particle diameter 50mm removed by trommel screen, the inorganic componentss such as the mainly sandy soil screened out, then selection by winnowing removes plastics, residuum is the organism such as pericarp, paper handkerchief, cloth, changing food waste, can recycle, ovendry power is broken to below particle diameter 5mm.
In the present invention, the treatment process of each component is the most key, especially mud and domestic refuse, the two complicated component, various microbial growth, stench is serious, deodorizing process must be carried out, and containing a large amount of charged group in the mud of Sewage Plant process generation, cannot be separated completely with water, affect follow-up coal process processed, have to pass through modification and just can remove portion of water wherein, realize recycling.Three kinds of compositions are with after aforementioned proportion mixing, need through pressing step, the too high meeting of forming pressure causes the portion's grain breakage of coal intragranular, conquassation, destroy internal structure, also can cause demoulding difficulty, the problems such as incomplete combustion simultaneously, comparatively suitable at 15 ~ 20MPa, the artificial coal of repressed acquisition, fuel value all meets the requirements.
Preferably, above-mentionedly utilize domestic refuse, domestic sludge prepares in the method for artificial coal, the concrete treatment process of domestic sludge is: mud makes mud become fluidization by the quality of 7:3 than mix and blend with water, add reodorant deodorizing again, add the modification of properties-correcting agent polyacrylamide, polyacrylamide add-on is that every 1 kilogram of fluidised mud adds 40 ~ 45mg, is stirred to and occurs precipitation; It is 50 ~ 60% that precipitation adopts the mode of press filtration to carry out processed to water content, then dries to water content less than 20%.
Polyacrylamide, with positive group, can adsorb the suspended particles be scattered in solution, makes to produce crosslinked action between ion, has extremely strong modifying function, just can realize modification fast and form precipitation under low dose uses situation.In addition, its input amount needs to control in this scope of 40 ~ 45mg/kg fluidized mud, exceeds or deficiency, all can cause sludge modification deleterious.Modified precipitation adopts the mode of press filtration to carry out processed, does not need vacuum or pressurized environment, effectively reduces production cost.
Preferably, above-mentionedly utilize domestic refuse, domestic sludge prepares in the method for artificial coal, domestic refuse deodorizing sterilizing uses compound deodorizer, by weight, it consists of: bodied ferric sulfate 6 ~ 8 parts, anion-polyacrylamide 7 ~ 9 parts, unslaked lime 1 ~ 3 part and Sumizyme MP 1 ~ 2 part.This compound deodorizer fast and effeciently can remove the malodorous elements such as hydrogen sulfide, ammonia in rubbish, and raw material is easy to get, with low cost.
Preferably, above-mentionedly utilize domestic refuse, domestic sludge prepares in the method for artificial coal, the deodorizing sterilizing method of domestic refuse is that compound deodorizer thin up 200 times is become the aqueous solution, and domestic refuse per ton sprays compound deodorizer aqueous solution 3kg.
Preferably, above-mentionedly utilize domestic refuse, domestic sludge prepares in the method for artificial coal, stalk, useless pitch, domestic sludge and domestic refuse are all crushed to below 2mm, and amount of water is 8% of mixture quality, and forming pressure is 18MPa.Add water and can not play lubrication less, be unfavorable for moulding, and excess moisture can affect the demoulding and the oven dry of coal, increase cost, therefore the addition of 8% is the most suitable, and the product performance obtained under coordinating the size range of below 2mm and 18MPa forming pressure are optimum.
Preferably, above-mentionedly utilize domestic refuse, domestic sludge prepares in the method for artificial coal, each composition weight number is stalk 50 parts, useless pitch 10 parts, domestic refuse 30 parts, domestic sludge 30 parts.The artificial coal of this proportioning synthesis, combustion heat value is higher, is ideal coal fuel.
Above-mentionedly utilize domestic refuse, artificial coal prepared by method that domestic sludge prepares artificial coal is also within protection scope of the present invention.
Compared with prior art, the present invention has following beneficial effect:
Waste straw, useless pitch, domestic refuse and domestic sludge are pressed into artificial coal by mixing after certain process by the present invention, each composition mixture has evaded the shortcoming of burning separately separately, improve integrated fuel and can utilize calorific value, achieve resource recycling, significantly reduce environmental improvement burden, domestic refuse and domestic sludge are suppressed with suitable proportion mixture after ad hoc approach processes, the coal fuel combustion value obtained meets national requirements, can be widely used in the multiple industrial circles such as brickmaking factory.
Embodiment
Explain the present invention further below in conjunction with specific embodiment, implemented better to enable those skilled in the art.
Embodiment:
Certain sewage work of city mainly processes the sanitary sewage in this urban district, and the domestic sludge of generation is frowziness, and brown or partially black, density is greater than the soft solid of water.Domestic refuse is the domestic waste that refuse tip is collected.Stalk is the maize straw that field is discarded.Useless pitch is the asphalt waste that aged asphalt road is replaced when overhauling.
1, raw materials pretreatment
Corn stalk powder is broken to below particle diameter 5mm;
Useless asphalt powder is broken to below particle diameter 5mm;
Mud makes mud become fluidization by the quality of 7:3 than mix and blend with water, then adds reodorant deodorizing, adds the modification of properties-correcting agent polyacrylamide, and polyacrylamide add-on is that every 1 kilogram of fluidised mud adds 40 ~ 45mg, is stirred to and occurs precipitation; It is 50 ~ 60% that precipitation adopts the mode of press filtration to carry out processed to water content, then dries to water content less than 20%;
Domestic refuse adds compound deodorizer deodorizing, and compound deodorizer consists of: bodied ferric sulfate 6 ~ 8kg, anion-polyacrylamide 7 ~ 9kg, unslaked lime 1 ~ 3 kg and Sumizyme MP 1 ~ 2 kg.Compound deodorizer thin up 200 times is become the aqueous solution, and domestic refuse per ton sprays compound deodorizer aqueous solution 3kg, and half a day sprays once, and spray twice, the malodorous elements such as hydrogen sulfide and ammonia can remove more than 70%.Wherein with bodied ferric sulfate 7kg, the compound deodorizer of anion-polyacrylamide 8kg, unslaked lime 2kg and Sumizyme MP kg formula composition, deodorizing effect is best, and malodorous elements clearance reaches 79%, ideal.Rubbish through deodorizing process carries out magnetic separation again and removes metal object, then removes the fines of below particle diameter 50mm through trommel screen, and last selection by winnowing removes plastics, and residuum ovendry power is broken to below particle diameter 5mm.
2, the stalk processed, domestic sludge and domestic garbage mixing are added water stir after under 15 ~ 20MPa condition, be pressed into artificial coal.
Enumerate 4 preparation embodiments respectively by above-mentioned steps, in embodiment, each parameter is in table 1.
Table 1
Above-described embodiment is only for the invention example is clearly described, and the restriction not to the invention embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among the protection domain of the invention claim.
Claims (7)
1. utilize domestic refuse, a method that domestic sludge prepares artificial coal, it is characterized in that, the stalk processed, useless pitch, domestic sludge and domestic garbage mixing are suppressed under 15 ~ 20MPa condition forming after adding water and stirring; Each ingredients weight parts proportioning is stalk 10 ~ 80 parts, useless pitch 10 ~ 20 parts, domestic sludge 10 ~ 80 parts, domestic refuse 10 ~ 80 parts;
Wherein each component treatment process is: crushed stalk is to below particle diameter 5mm; Useless asphalt powder is broken to below particle diameter 5mm; Domestic sludge, through deodorizing and modified filter-press dehydration, is dried to water content below 20%, pulverizes; Domestic refuse is successively through the fines of deodorizing sterilizing, magnetic separation removal metal object, trommel screen removal below particle diameter 50mm, and after selection by winnowing removes plastics, residuum ovendry power is broken to below particle diameter 5mm.
2. according to claim 1ly utilize domestic refuse, method that domestic sludge prepares artificial coal, it is characterized in that, the concrete treatment process of domestic sludge is: mud makes mud become fluidization by the quality of 7:3 than mix and blend with water, add reodorant deodorizing again, add the modification of properties-correcting agent polyacrylamide, polyacrylamide add-on is that every 1 kilogram of fluidised mud adds 40 ~ 45mg, is stirred to and occurs precipitation; It is 50 ~ 60% that precipitation adopts the mode of press filtration to carry out processed to water content, then dries to water content less than 20%.
3. according to claim 1ly utilize domestic refuse, method that domestic sludge prepares artificial coal, it is characterized in that, domestic refuse deodorizing sterilizing uses compound deodorizer, by weight, it consists of: bodied ferric sulfate 6 ~ 8 parts, anion-polyacrylamide 7 ~ 9 parts, unslaked lime 1 ~ 3 part and Sumizyme MP 1 ~ 2 part.
4. according to claim 3ly utilize domestic refuse, method that domestic sludge prepares artificial coal, it is characterized in that, the deodorizing sterilizing method of domestic refuse is that compound deodorizer thin up 200 times is become the aqueous solution, and domestic refuse per ton sprays compound deodorizer aqueous solution 3kg.
5. according to claim 1ly utilize domestic refuse, method that domestic sludge prepares artificial coal, it is characterized in that, stalk, useless pitch, domestic sludge and domestic refuse are all crushed to below 2mm, and amount of water is 8% of mixture quality, and forming pressure is 18MPa.
6. arbitraryly described utilize domestic refuse according to claim 1 ~ 5, method that domestic sludge prepares artificial coal, it is characterized in that, each composition weight number is stalk 50 parts, useless pitch 10 parts, domestic refuse 30 parts, domestic sludge 30 parts.
7. the artificial coal that the method that claim 1 ~ 6 arbitraryly described utilizes domestic refuse, domestic sludge prepares artificial coal prepares.
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| CN201510022220.9A CN104593115B (en) | 2015-01-16 | 2015-01-16 | A kind ofly utilize domestic refuse, method that domestic sludge prepares artificial coal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695027A (en) * | 2015-12-10 | 2016-06-22 | 柳州市京阳节能科技研发有限公司 | Process for refining fuel through raw stalk and leaves |
| CN105695026A (en) * | 2015-12-10 | 2016-06-22 | 柳州市京阳节能科技研发有限公司 | Optimized and refined fuel block prepared from plant wastes |
| CN109294685A (en) * | 2018-11-09 | 2019-02-01 | 重庆满隆污泥处理有限责任公司 | Fuel production method based on industrial sludge |
| CN114874822A (en) * | 2022-03-25 | 2022-08-09 | 浙江荣越环保科技有限公司 | Composite fuel particle and preparation process and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1635062A (en) * | 2004-11-29 | 2005-07-06 | 长春市红光洁净能源开发有限公司 | Molded coal made from garbage and process for preparing same |
| CN101362976A (en) * | 2008-09-12 | 2009-02-11 | 周泽宇 | Coal producers from consumer waste regeneration |
| CN101362977A (en) * | 2008-09-12 | 2009-02-11 | 周泽宇 | Technique for preparing consumer waste regenerated coal |
| CN101724484A (en) * | 2009-12-07 | 2010-06-09 | 鹿焕才 | Mixed type coal substitute product technology |
| US20130146508A1 (en) * | 2011-12-07 | 2013-06-13 | IFP Energies Nouvelles | Process for coal conversion comprising at least one step of liquefaction for the manufacture of aromatics |
-
2015
- 2015-01-16 CN CN201510022220.9A patent/CN104593115B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1635062A (en) * | 2004-11-29 | 2005-07-06 | 长春市红光洁净能源开发有限公司 | Molded coal made from garbage and process for preparing same |
| CN101362976A (en) * | 2008-09-12 | 2009-02-11 | 周泽宇 | Coal producers from consumer waste regeneration |
| CN101362977A (en) * | 2008-09-12 | 2009-02-11 | 周泽宇 | Technique for preparing consumer waste regenerated coal |
| CN101724484A (en) * | 2009-12-07 | 2010-06-09 | 鹿焕才 | Mixed type coal substitute product technology |
| US20130146508A1 (en) * | 2011-12-07 | 2013-06-13 | IFP Energies Nouvelles | Process for coal conversion comprising at least one step of liquefaction for the manufacture of aromatics |
Non-Patent Citations (1)
| Title |
|---|
| 田福军，等: "污泥型煤技术处理污泥的基础研究", 《燃料化学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695027A (en) * | 2015-12-10 | 2016-06-22 | 柳州市京阳节能科技研发有限公司 | Process for refining fuel through raw stalk and leaves |
| CN105695026A (en) * | 2015-12-10 | 2016-06-22 | 柳州市京阳节能科技研发有限公司 | Optimized and refined fuel block prepared from plant wastes |
| CN109294685A (en) * | 2018-11-09 | 2019-02-01 | 重庆满隆污泥处理有限责任公司 | Fuel production method based on industrial sludge |
| CN114874822A (en) * | 2022-03-25 | 2022-08-09 | 浙江荣越环保科技有限公司 | Composite fuel particle and preparation process and application thereof |
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| CN104593115B (en) | 2016-03-09 |
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