CN104140242A - Solid waste pyrolysis waste residue sintered brick and preparing method thereof - Google Patents
Solid waste pyrolysis waste residue sintered brick and preparing method thereof Download PDFInfo
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- CN104140242A CN104140242A CN201410368072.1A CN201410368072A CN104140242A CN 104140242 A CN104140242 A CN 104140242A CN 201410368072 A CN201410368072 A CN 201410368072A CN 104140242 A CN104140242 A CN 104140242A
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- solid waste
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- waste pyrolysis
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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
- 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
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Abstract
The invention provides a solid waste pyrolysis waste residue sintered brick and a preparing method of the solid waste pyrolysis waste residue sintered brick. The sintered brick is prepared by the following components of, by weight, 64% to 74% of clay, 15% to 25% of coal gangue, 5% to 15% of solid waste pyrolysis waste residues and 0.5% to 1.5% of water. The clay, the coal gangue and the solid waste pyrolysis waste residues are crushed through a jaw crusher, a hammer crusher and a fine grinding roll crusher in three levels and stirred through a double-shaft mixer, evenly-mixed materials are conveyed to an aging bin to be aged, the raw materials are fully homogenized, then conveyed to a forming workshop and extruded and formed through an extruder, so that a blank is obtained, finally the blank is conveyed to a tunnel drying chamber to be dried, and therefore a finished product is obtained. The waste residues remaining after a solid waste pyrolysis gasification reaction in the waste disposal process serve as the raw materials of the sintered brick, resource utilization of urban and rural waste is achieved, waste harmless, reducing and recycling disposal is guaranteed, meanwhile brick making cost is greatly reduced, and strength of the sintered brick is improved.
Description
Technical field
The present invention relates to vitrified brick technical field, be specifically related to a kind of solid waste pyrolysis waste residue vitrified brick and preparation method thereof.
Background technology
Peace and development is the two principal themes of the world today, but along with the raising day by day of social development, living standards of the people, town and country Municipal Garbage Yield constantly increases, and composition is increasingly sophisticated, its harm is also more and more serious, and rubbish has become the focus of global concern as worldwide public hazards.For alleviating urban refuse pollution, the comprehensive regulation of rubbish and the research work of utilization are all devoted in countries in the world.The processing of municipal wastes is an integral part of environment protection, is worth further our deep discussion.
Along with the development of industrialization and urbanization, environmental problem has caused global attention.In the evolution of urbanization, town and country rubbish has been beaten alarm bell to people.In recent years, the generation total amount of China's domestic waste increases considerably.First this increase relevant with China city quantity; The increase of city size and urban population is also major cause.Airborne remote sensing is measured and is shown, the above scrap heap in 50 square metres of Beijing suburb just has more than 7000.China's application of city life garbage day output is 0.7～1.0kg per capita, and increases with average annual 10% speed.Large, medium and small city (town), whole nation generation approaches 200,000,000 tons.So the processing to municipal wastes is compeled at the tip of the brow.
But in China, the utilization ratio of rubbish is but very low, the big cities such as Beijing and Shanghai are only 1～5%.At present, some big or middle cities only adopt the mode processing of simple landfill, have not only wasted resource, and take a large amount of soils, polluted source and environment, harm people's health.Research shows, the organic content of China's domestic waste is the trend increasing year by year in recent years, and in organic waste, is rich in the nutrient elements such as nitrogen, phosphorus, potassium, is good organic fertilizer raw material.If it is made full use of, in alleviating carrying capacity of environment, also can solve China's soil and be badly in need of the matter of great urgency of a large amount of organic fertilizer.
In China's town and country rubbish, also have much can second stage employ resource, as still having waste to exist in domestic refuse after pyrolytic gasification, can how these wastes be processed, again utilize, and also become one of focus of present social concerns.
Summary of the invention
The object of the present invention is to provide a kind of solid waste pyrolysis waste residue vitrified brick, the present invention also aims to provide a kind of preparation method of solid waste pyrolysis waste residue vitrified brick, utilize the solid waste remaining waste residue after pyrolytic gasification in domestic refuse to carry out roasting brickmaking, make rational use of resources, save brick making cost.
In order to realize above object, the present invention adopts following technical scheme:
A kind of solid waste pyrolysis waste residue vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 64～74%, coal gangue 15～25%, solid waste pyrolysis waste residue 5～15%, water 0.5～1.5%, described solid waste pyrolysis waste residue is the solid waste remaining waste residue after pyrolytic gasification reaction in domestic refuse.
Described vitrified brick is prepared from by following component by weight percentage: clay 69%, coal gangue 20%, solid waste pyrolysis waste residue 10%, water 1%.
A preparation method for solid waste pyrolysis waste residue vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and solid waste pyrolysis waste residue are pulverized, then, taken by weight percentage following raw material: clay 64～74%, coal gangue 15～25%, solid waste pyrolysis waste residue 5～15%, water 0.5～1.5%, stirs it is mixed;
(2) ageing
The mixtures of materials that step (1) is mixed is delivered in ageing storehouse and carries out ageing, and described digestion time is 60～80 hours;
(3) moulding
Step (2) is delivered to fitting room through the mixtures of materials of ageing, enters again two-stage vacuum extruder for blocks extrusion moulding through mixing extruder, fine cracking double roller machine, obtain base substrate;
(4) drying and roasting
The base substrate drying car that step (3) is obtained is sent into kiln and is dried, described time of drying 65～85min, described drying temperature is 170～190 DEG C; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 65～85min, and described maturing temperature is 850～1050 DEG C.
Preferably, the clay in described step (1) and the pulverizing of coal gangue adopt jaw crusher, hammer mill, three grades of fragmentations of fine cracking double roller machine, and after pulverizing, granularity is less than 1.5mm.
Preferably, the whipping process in described step (1) adopts biaxial rneader to stir.
Preferably, in described step (2), digestion time is 72 hours.
Preferably, in described step (4), be 75min time of drying, and drying temperature is 180 DEG C, and roasting time is 75min, and maturing temperature is 950 DEG C.
Vitrified brick provided by the present invention, requires the abundant homogenizing of raw material, ageing, and production technique is had relatively high expectations to material performance, stricter to raw material processing, and equipment is also had higher requirements.Therefore, technological design emphasis has been strengthened raw material processing, green brick forming and dry, and concrete preparation process is as follows:
(1) material storage and processing
This production line adopts the waste solid pyrolysis of waste waste residue producing in garbage processing procedure to join in the conventional raw material clay of vitrified brick and coal gangue to carry out vitrified brick preparation.For raw material is fully mixed, production technique adopts jaw crusher, hammer mill, three grades of fragmentations of fine cracking double roller machine, just broken rear granularity is controlled in 20mm, after hammer crushing crusher machine, particle diameter is less than 3mm, be less than 1.5mm by granularity after fine cracking double roller machine, after mixture fragmentation, enter double-shaft stirrer stirring and mix, it is mixed.
(2) ageing
The mixture of processing through step (1) can contain certain moisture, and ageing is carried out in mass transport to ageing storehouse, makes on the one hand the abundant homogenizing of raw material, increases the plasticity of raw material; On the other hand, the continuity of producing is played and regulated and shock absorption.Digestion time is 60～80 hours.
(3) extrusion moulding
Multi-bucket excavator, endless belt conveyor for mixtures of materials after ageing are transported to fitting room.Fitting room is by box feeding machine feed, and material enters two-stage vacuum extruder for blocks extrusion moulding again through mixing extruder, fine cracking double roller machine, obtains base substrate, and forcing machine main frame is selected the molding device of condition of high vacuum degree, high extrusion pressure.
(4) drying and roasting
The base substrate that extrusion moulding is obtained is through manually piling up on drying cart, and the good drying cart of code is sent into tunnel drier by ferry bus-hydraulic pusher.This production line adopts quadratic code to burn production technique, and the thermal source of kiln is from tunnel furnace.The drying medium (warm air and hot flue gas) of heat enters kiln from top, and humid gas is discharged from kiln bottom.In order to ensure the quality of dry base substrate, the hot gas in kiln stirs and sends into warm air by rotary blower, can prevent like this layering of warm air, makes the temperature distribution in kiln more even.In addition, this kiln is equipped with humidity and temperature Monitoring systems.
This production technique mechanize, level of automation are high, advanced technology, technique is reasonable, labor strength is low, good product quality.
The main pollutant component of flue gas of tunnel furnace output comprises dust and a small amount of HCl, SO2, after flue gas heat exchange, after the depickling of alkaline spray column spray, dedusting, enters atmosphere by aiutage, and heat exchange heat can be used as plant area's winter heating and domestic hot-water.Alkali solution spray deacidification efficiency is 75%, and efficiency of dust collection is 90%.Standard limit of smog release is carried out " consumer waste incineration pollution control criterion " and (GB18485-2001), is met emission standard.
The present invention adopts in garbage processing procedure after pyrolytic gasification produces remaining waste residue as baked brick raw materials, realize the recycling of town and country wastes, ensure the processing of garbage harmless, minimizing and resource utilization, reduce the pollution that urban and rural environment brings because of rubbish, also greatly reduce brick making cost, improved the intensity of vitrified brick simultaneously.
Embodiment
Embodiment 1
A kind of solid waste pyrolysis waste residue vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 69%, coal gangue 20%, solid waste pyrolysis waste residue 10%, water 1%, described solid waste pyrolysis waste residue is the solid waste remaining waste residue after pyrolytic gasification reaction in domestic refuse.
A preparation method for solid waste pyrolysis waste residue vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and solid waste pyrolysis waste residue are pulverized, then, take by weight percentage following raw material: clay 69%, coal gangue 20%, solid waste pyrolysis waste residue 10%, water 1%, stirs it is mixed, and described raw material pulverizing adopts jaw crusher, hammer mill, three grades of fragmentations of fine cracking double roller machine, after pulverizing, granularity is less than 1.5mm, and described whipping process adopts biaxial rneader to stir;
(2) ageing
The mixtures of materials that step (1) is mixed is delivered in ageing storehouse and carries out ageing, and described digestion time is 72 hours;
(3) moulding
Step (2) is delivered to fitting room through the mixtures of materials of ageing, enters again two-stage vacuum extruder for blocks extrusion moulding through mixing extruder, fine cracking double roller machine, obtain base substrate;
(4) drying and roasting
The base substrate drying car that step (3) is obtained is sent into kiln and is dried, described time of drying 75min, described drying temperature is 180 DEG C; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 75min, and described maturing temperature is 950 DEG C.
Strength grade, scum and explosion performance to embodiment 1 products obtained therefrom are carried out sampling Detection, and result is as follows:
Embodiment 2
A kind of solid waste pyrolysis waste residue vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 64%, coal gangue 19.5%, solid waste pyrolysis waste residue 15%, water 1.5%, described solid waste pyrolysis waste residue is the solid waste remaining waste residue after pyrolytic gasification reaction in domestic refuse.
A preparation method for solid waste pyrolysis waste residue vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and solid waste pyrolysis waste residue are pulverized, then, take by weight percentage following raw material: clay 64%, coal gangue 19.5%, solid waste pyrolysis waste residue 15%, water 1.5%, stirs it is mixed, and described raw material pulverizing adopts jaw crusher, hammer mill, three grades of fragmentations of fine cracking double roller machine, after pulverizing, granularity is less than 1.5mm, and described whipping process adopts biaxial rneader to stir;
(2) ageing
The mixtures of materials that step (1) is mixed is delivered in ageing storehouse and carries out ageing, and described digestion time is 60 hours;
(3) moulding
Step (2) is delivered to fitting room through the mixtures of materials of ageing, enters again two-stage vacuum extruder for blocks extrusion moulding through mixing extruder, fine cracking double roller machine, obtain base substrate;
(4) drying and roasting
The base substrate drying car that step (3) is obtained is sent into kiln and is dried, described time of drying 85min, described drying temperature is 170 DEG C; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 65min, and described maturing temperature is 1050 DEG C.
Strength grade, scum and explosion performance to embodiment 2 products obtained therefroms are carried out sampling Detection, and result is as follows:
Embodiment 3
A kind of solid waste pyrolysis waste residue vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 74%, coal gangue 21.5%, solid waste pyrolysis waste residue 5%, water 0.5%, described solid waste pyrolysis waste residue is the solid waste remaining waste residue after pyrolytic gasification reaction in domestic refuse.
A preparation method for solid waste pyrolysis waste residue vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and solid waste pyrolysis waste residue are pulverized, then, take by weight percentage following raw material: clay 74%, coal gangue 21.5%, solid waste pyrolysis waste residue 5%, water 0.5%, stirs it is mixed, and described raw material pulverizing adopts jaw crusher, hammer mill, three grades of fragmentations of fine cracking double roller machine, after pulverizing, granularity is less than 1.5mm, and described whipping process adopts biaxial rneader to stir;
(2) ageing
The mixtures of materials that step (1) is mixed is delivered in ageing storehouse and carries out ageing, and described digestion time is 80 hours;
(3) moulding
Step (2) is delivered to fitting room through the mixtures of materials of ageing, enters again two-stage vacuum extruder for blocks extrusion moulding through mixing extruder, fine cracking double roller machine, obtain base substrate;
(4) drying and roasting
The base substrate drying car that step (3) is obtained is sent into kiln and is dried, described time of drying 65min, described drying temperature is 190 DEG C; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 85min, and described maturing temperature is 850 DEG C.
Strength grade, scum and explosion performance to embodiment 3 products obtained therefroms are carried out sampling Detection, and result is as follows:
The present invention adopts in garbage processing procedure after pyrolytic gasification remaining waste residue as baked brick raw materials, realize the recycling of town and country wastes, ensure the processing of garbage harmless, minimizing and resource utilization, reduce the pollution that urban and rural environment brings because of rubbish, also greatly reduce brick making cost, improved the intensity of vitrified brick simultaneously.
Claims (8)
1. a solid waste pyrolysis waste residue vitrified brick, it is characterized in that, described vitrified brick is prepared from by following component by weight percentage: clay 64～74%, coal gangue 15～25%, solid waste pyrolysis waste residue 5～15%, water 0.5～1.5%, described solid waste pyrolysis waste residue is the solid waste remaining waste residue after pyrolytic gasification reaction in domestic refuse.
2. solid waste pyrolysis waste residue vitrified brick according to claim 1, is characterized in that, described vitrified brick is prepared from by following component by weight percentage: clay 69%, coal gangue 20%, solid waste pyrolysis waste residue 10%, water 1%.
3. a preparation method for solid waste pyrolysis waste residue vitrified brick claimed in claim 1, is characterized in that, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and solid waste pyrolysis waste residue are pulverized, then, taken by weight percentage following raw material: clay 64～74%, coal gangue 15～25%, solid waste pyrolysis waste residue 5～15%, water 0.5～1.5%, stirs it is mixed;
(2) ageing
The mixtures of materials that step (1) is mixed is delivered in ageing storehouse and carries out ageing, and described digestion time is 60～80 hours;
(3) moulding
Step (2) is delivered to fitting room through the mixtures of materials of ageing, enters again two-stage vacuum extruder for blocks extrusion moulding through mixing extruder, fine cracking double roller machine, obtain base substrate;
(4) drying and roasting
The base substrate drying car that step (3) is obtained is sent into kiln and is dried, described time of drying 65～85min, described drying temperature is 170～190 DEG C; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 65～85min, and described maturing temperature is 850～1050 DEG C.
4. the preparation method of solid waste pyrolysis waste residue vitrified brick according to claim 3, it is characterized in that, the pulverizing of clay, coal gangue and solid waste pyrolysis waste residue in described step (1) adopts jaw crusher, hammer mill, three grades of fragmentations of fine cracking double roller machine, and after pulverizing, granularity is less than 1.5mm.
5. the preparation method of solid waste pyrolysis waste residue vitrified brick according to claim 3, is characterized in that, the whipping process in described step (1) adopts biaxial rneader to stir.
6. the preparation method of solid waste pyrolysis waste residue vitrified brick according to claim 3, is characterized in that, in described step (2), digestion time is 72 hours.
7. the preparation method of solid waste pyrolysis waste residue vitrified brick according to claim 3, is characterized in that, in described step (4), be 75min time of drying, and drying temperature is 180 DEG C.
8. the preparation method of solid waste pyrolysis waste residue vitrified brick according to claim 3, is characterized in that, in described step (4), roasting time is 75min, and maturing temperature is 950 DEG C.
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| CN201410368072.1A CN104140242A (en) | 2014-07-30 | 2014-07-30 | Solid waste pyrolysis waste residue sintered brick and preparing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187083A (en) * | 2016-07-04 | 2016-12-07 | 福建正仁环保有限公司 | One way of life refuse pyrolysis residue after gasifying is used for shale sintered brick technique |
| CN112341154A (en) * | 2020-11-16 | 2021-02-09 | 广东鼎信建材科技有限公司 | Solid waste pyrolytic waste residue sintered brick and preparation method thereof |
| CN116253554A (en) * | 2023-03-16 | 2023-06-13 | 同济大学 | Porous brick sintered by waste pyrolysis gasification residues and preparation and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519300A (en) * | 2008-02-27 | 2009-09-02 | 李兴业 | Method for manufacturing bricks by using household garbage |
| CN102327888A (en) * | 2011-05-25 | 2012-01-25 | 严大春 | Municipal domestic waste resource recovery processing method with zero pollution, zero release and harmlessness |
-
2014
- 2014-07-30 CN CN201410368072.1A patent/CN104140242A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519300A (en) * | 2008-02-27 | 2009-09-02 | 李兴业 | Method for manufacturing bricks by using household garbage |
| CN102327888A (en) * | 2011-05-25 | 2012-01-25 | 严大春 | Municipal domestic waste resource recovery processing method with zero pollution, zero release and harmlessness |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187083A (en) * | 2016-07-04 | 2016-12-07 | 福建正仁环保有限公司 | One way of life refuse pyrolysis residue after gasifying is used for shale sintered brick technique |
| CN112341154A (en) * | 2020-11-16 | 2021-02-09 | 广东鼎信建材科技有限公司 | Solid waste pyrolytic waste residue sintered brick and preparation method thereof |
| CN116253554A (en) * | 2023-03-16 | 2023-06-13 | 同济大学 | Porous brick sintered by waste pyrolysis gasification residues and preparation and application thereof |
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Application publication date: 20141112 |