CN105084865A - Process for sintering common bricks by using fresh municipal domestic waste - Google Patents
Process for sintering common bricks by using fresh municipal domestic waste Download PDFInfo
- Publication number
- CN105084865A CN105084865A CN201410191234.9A CN201410191234A CN105084865A CN 105084865 A CN105084865 A CN 105084865A CN 201410191234 A CN201410191234 A CN 201410191234A CN 105084865 A CN105084865 A CN 105084865A
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- CN
- China
- Prior art keywords
- bricks
- refuse
- urban
- technique
- fresh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011449 brick Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010791 domestic waste Substances 0.000 title abstract 2
- 238000005245 sintering Methods 0.000 title abstract 2
- 239000004927 clay Substances 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003546 flue gas Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000010813 municipal solid waste Substances 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 9
- 239000003245 coal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 2
- 238000009264 composting Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 10
- 238000001035 drying Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000010805 inorganic waste Substances 0.000 abstract 1
- 239000010812 mixed waste Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 5
- 239000002956 ash Substances 0.000 description 5
- 239000010815 organic waste Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 231100001261 hazardous Toxicity 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- -1 dirt Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a process for sintering common bricks by using fresh municipal domestic waste. The process comprises the steps of: I, sorting mixed waste; II, mixing mud; III, forming green bricks; IV, carrying out drying; and V, performing roasting. The process is characterized in that inorganic waste in the fresh waste is mixed into clay as mud for making the green bricks while organic substances are put into a burning furnace beside a brick kiln for being burnt. Hot flue gas and incompletely-burnt gas generated by burning are introduced into the brick kiln for being burnt again sufficiently; and the flue gas is purified by passing through a plurality of layers of staggered and stacked green bricks, and then is discharged into the atmosphere.
Description
Technical field
The present invention relates to a kind of urban fresh domestic refuse Backing Bricks With Urban Living technique.
Background technology
Application of city life garbage is one of ten large ecological difficult problems of facing of China.Application of city life garbage about 100,000,000 tons is produced in the whole nation per year, wherein only has an appointment and 5% has carried out harmless treatment, is substantially all exposedly naturally to stack, be directly used in farmland or directly fill out hole, occupies farmland, atmosphere pollution, contaminated soil and underground water, causes serious consequence.
New refuse contains a large amount of moisture content and many organic substances, brickmaking difficult forming, even if become type, the cavity that during roasting, organism stays after burning, will make brick riddled with gaping wounds, not even forming blocks; Secondly, the temperature of organic substance precipitation fugitive constituent is low, speed fast, and this occurs in the preheating zone of brickkiln, does not reach temperature of combustion therebetween, causes and enters air in the lump with flue gas.Close with low temperature air-polluting situation of burning away the refuse.These 2 are referred to as " new refuse brickmaking is difficult to the obstacle gone beyond ", so far domestic and international all manque precedent.
Summary of the invention
Object of the present invention, exactly in order to solve above-mentioned all difficult problems, there is provided a kind of scale changeable (minimum can be managed by rural households exclusively engaging in a particular productionor trade), by component of refuse restriction, invest little, take up an area less, easily universal, refuse treatment rate is high, utilization of waste material, do not need to transport for long-distance, essentially no secondary pollution, be particularly suitable for economics of underdevelopment technology status, urban fresh domestic refuse Backing Bricks With Urban Living technique.
Technological process of the present invention is as follows:
One, the rubbish of mixed collection is divided into roughly organism (difficult go-no-go thing can be contained), inorganics (can particulate organism be contained) and Recyclable, two, inorganic refuse and clay (or mud, coal gangue, shale, trip mud etc.) mixing, three, base (half dry-pressing formed or plastic forming), four, nature or artificial seasoning, five, roasting, the feature of this technique is, inorganic refuse in new refuse mixes clay manufacturing bricks by mixing, organic waste is burned by the other incinerator of putting of brickkiln, the heat smoke and the imperfect combustion gas that burn generation pass into brickkiln Thorough combustion again, its heat is used as auxiliary baking bricks, flue gas then enters air after the purification of the fragment of brick of high temperature and multi-laminate code.
The burning process of organic waste in present invention process is the scavenging process of drying garbage, burning, secondary combustion and smoke prevention and dust control and gas phase hazardous thing, is again by the heat of waste incineration, is used in the technological process of baking bricks.
The scavenging process of flue gas, is utilize the CaO(generally contained in pug as inadequate in content, can adds Wingdale, lime, carbide slag etc., can provide the material of alkaline earth metal oxide) at high temperature gas phase hazardous thing is fixed in brick.Its chemical equation mainly contains:
Now dry-pressing formedly introduce its technological process respectively with plasticity extrusion moulding by half:
A. half dry pressuring forming process: by rubbish through rotary conveyor time carry out go-no-go, one is that hand picks scrap iron (also can install electro-magnet) and other waste product, two is to be picked up by hand or rotary harrow picks organism, the organism that all the other ashes, dirt, brick and tile and difficulty are picked up and the clayey raw material such as clay or mud roll through wheel roller, then sieve, adobe is pressed into again, the residual metallic of sifting out and stone is recyclable or landfill through brick pressing machine.When dried adobe enters kiln roasting, the organism picked from rubbish, puts dry in incinerator on brickkiln side and burns.After the heat smoke produced in stove and inflammable gas pass into the clinkering zone secondary combustion in brickkiln, flue gas from kiln through the adobe of multilayer mistake row password suitable for reading or side is put chimney and is discharged.Ashes then can to mix in clay brickmaking base or for farmland.This technique to the purity of brickmaking pug and plasticity index less demanding, inorganics pulverize time also do not need drying, be best suited for employing of newly founding the factory.
B. plasticity extruding-out process.By new refuse through Belt Conveying sieve apparatus time go-no-go (rotary conveyor can be made at the bottom of screen cloth, inorganics is sifted out) in course of conveying, one is can pick up waste product (or block brick and tile and slag) and can also install electro-magnet and absorb scrap iron by hand, two is that hand picks organism, block brick and tile and slag are mixed into the clayey raw material such as clay or mud with the inorganics powder sifted out after crushed, are extruded into adobe through brick extruding machine.When dried adobe enters kiln roasting, the organism picked from rubbish and other difficulty are picked up thing and are put in incinerator on the side of brickkiln and burn.Both drying and incinerating rubbish, utilizes again and burns heat and assist and bake bricks, after the heat smoke produced in incinerator and inflammable gas pass into the clinkering zone secondary combustion in kiln, flue gas after the adobe of multilayer mistake row password from kiln suitable for reading or side put chimney discharge.This technique requires tight to go-no-go, even if all do not pick up, also can produce, so in the many place of people, can also not want any machinery, entirely use manual operation.
The waste incineration brickkiln that present invention process is used, combines with brickkiln with incinerator and the structure explanation of the little shaft kiln of rubbish built up.Opened by plate-turning door, the passage that rubbish enters incinerator is deposited on plate, and the dry water vapor produced is discharged from aiutage.After drying, open plate, burn in the sliding part to combustion chamber of rubbish, burning cigarette and inflammable gas enter brickkiln clinkering zone through porthole burns.After the adobe of flue gas after baking bricks through multilayer mistake row password, merge with the internal combustion brick combustion product gases mixing inorganic refuse in brickkiln, the suitable for reading or chimney discharge from kiln.If when the heat burning rubbish is excessive, the plate of chimney can be pulled open, drain waste heat.The burning situation of rubbish can be observed from fire door, and stepped fire grate and plain grate bear slag and by waste incineration required air, the wide arc gap between fire grate and fire grate can be ticked large caking easily or not divide the incombustible substance picked.Ashes (comprise difficulty and pick up thing) can mix in pug and make adobe or as farmland fertilizer after screening.
The clay that this technique mixes with inorganic refuse can be the material that the various earth, shale, coal gangue, trip mud, mud etc. that can be used for baking bricks can make fat clay.
The adobe void content of added garbage is high, and rate of roasting is fast.Roasting in little shaft kiln, should strengthen the density that stacks bricks.
Because component of refuse is changeable, the heat content in adobe is also difficult to stablize, and needs reinforcement to see fire operation, and postcombustion can be added from fire door, or release excessive heat from chimney, to avoid producing underburnt or burn-off phenomenon, generally should installing thermometer, monitor inner operating.
This urban fresh domestic refuse Backing Bricks With Urban Living technique has following major advantage:
1, do not need complicated sorting equipment, invest little, take up an area few, refuse treatment rate is high, and organic waste does not enter adobe substantially, even also can enter stove burning without the composting of go-no-go.Ashes after burning all can also be used brickmaking base.
2, the restriction of component of refuse and collection method is not subject to.
3, both burned rubbish, and make use of again and burn heat in baking bricks.Burning heat smoke enters after brickkiln burns, and have to pass through the adobe of multilayer mistake row password, the lower flue dust of gear is also discharged after absorbing gas phase hazardous thing, and in fact brickkiln has become assisted combustion device and the smoke eliminator of incinerator, can avoid secondary pollution.Through the high temperature of about 1000 DEG C of adobe roasting, all combustiblematerialss are all burnt, and its temperature and time all greatly exceed the new regulation requirement of the European Economic Community, is the control techniques of smoke prevention and dust control and vapor phase contaminants the most thoroughly.
4, implement easily, scale is changeable, invests little instant effect.Rural households exclusively engaging in a particular productionor trade also can be managed, and lucrative.
Now be described further for urban population 0.5 ten thousand refuse treatment that people produces.0.5 ten thousand people produce quantity of refuse about 5 tons daily, can build a little shaft kiln having side to put incinerator.By new refuse through artificial screening and go-no-go, separate organism and pick scrap iron and other waste product as burning, hand, all the other ashes, dirt, brick and tile and difficulty pick up organism and the clayey raw material such as clay or mud, roll and sieve with wheel roller.The residual metallic of sifting out and stone reclaim or landfill.How many rubbish incorporations of brickmaking depends on clay plasticity index.Adobe is pressed into brick pressing machine, again dried adobe is entered kiln roasting, the side that the organic waste picked drops into brickkiln is put in incinerator, rubbish is at incinerator leading portion preheating and drying, burn when arriving combustion chamber, the heat smoke produced and inflammable gas, enter the clinkering zone Thorough combustion again of brickkiln through porthole.Because of the stop of multilayer adobe, these gases can not be discharged from chimney very soon, under the high temperature of about 1000 DEG C, all germs are all eliminated, and organic substance is fully oxidized, and dust is fully sedimentation also, flue gas after burning is the object with having reached fully purification during chimney discharge suitable for reading through kiln, when only on average within 1-2 hour, going out a kiln, just about have 5 minutes visible flue dust to discharge, all the other time oke exhaust blackness are Ringelman 0 grade.
Claims (3)
1. a urban fresh domestic refuse Backing Bricks With Urban Living technique, technological process has: one, composting go-no-go, two, pug mixing, three, green brick forming, four, dry, five, roasting, the feature of this technique is, the inorganic refuse in new refuse mixes the pug that clay is mixed into brickmaking base; The side of Organic input brick-baking kiln is put incinerator and is burned, and burns the heat smoke and imperfect combustion gas that produce, passes into brickkiln Thorough combustion again, enters air again after the adobe purification of flue gas through multilayer mistake row password.
2. urban fresh as claimed in claim 1 domestic refuse Backing Bricks With Urban Living technique, is characterized in that the go-no-go of rubbish only need be divided into organism (containing difficult go-no-go thing), inorganics (containing particulate organism) and Recyclable roughly.
3. urban fresh as claimed in claim 1 domestic refuse Backing Bricks With Urban Living technique, it is characterized in that, the clay mixed with inorganic refuse can be that the various earth, shale, coal gangue, trip mud, mud etc. that can be used for baking bricks can make plastic clay material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191234.9A CN105084865A (en) | 2014-05-08 | 2014-05-08 | Process for sintering common bricks by using fresh municipal domestic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191234.9A CN105084865A (en) | 2014-05-08 | 2014-05-08 | Process for sintering common bricks by using fresh municipal domestic waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105084865A true CN105084865A (en) | 2015-11-25 |
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ID=54566309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410191234.9A Pending CN105084865A (en) | 2014-05-08 | 2014-05-08 | Process for sintering common bricks by using fresh municipal domestic waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105084865A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122968A (en) * | 2016-06-24 | 2016-11-16 | 浦北县科学技术开发中心 | Preprocess method before one way of life waste incineration |
| CN107288250A (en) * | 2017-05-23 | 2017-10-24 | 江苏建筑职业技术学院 | A kind of engaged formula porous brick of coal gangue sintering |
| IT201800004787A1 (en) * | 2018-04-23 | 2019-10-23 | ARTICLES IN PORCELAIN STONEWARE |
-
2014
- 2014-05-08 CN CN201410191234.9A patent/CN105084865A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122968A (en) * | 2016-06-24 | 2016-11-16 | 浦北县科学技术开发中心 | Preprocess method before one way of life waste incineration |
| CN107288250A (en) * | 2017-05-23 | 2017-10-24 | 江苏建筑职业技术学院 | A kind of engaged formula porous brick of coal gangue sintering |
| IT201800004787A1 (en) * | 2018-04-23 | 2019-10-23 | ARTICLES IN PORCELAIN STONEWARE | |
| WO2019207432A1 (en) * | 2018-04-23 | 2019-10-31 | Saxa Grestone S.P.A. | Porcelain stoneware products |
| US12209054B2 (en) | 2018-04-23 | 2025-01-28 | Saxa Grestone S.P.A. | Porcelain stoneware products |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |