CN104119067A - Biogas residue sintered brick and preparation method thereof - Google Patents
Biogas residue sintered brick and preparation method thereof Download PDFInfo
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- CN104119067A CN104119067A CN201410367921.1A CN201410367921A CN104119067A CN 104119067 A CN104119067 A CN 104119067A CN 201410367921 A CN201410367921 A CN 201410367921A CN 104119067 A CN104119067 A CN 104119067A
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- natural pond
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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
Abstract
The invention provides a biogas residue sintered brick and a preparation method thereof. The sintered brick is prepared from the following components in percentage by weight: 64-74% of clay, 15-25% of gangue, 5-15% of biogas residues and 0.5-1.5% of water. The preparation method comprises the steps of carrying out three-stage crushing on the clay, the gangue and the biogas residues through a jaw crusher, a hammer crusher and a fine grinding pair-roll mill, and stirring by using a double-shaft stirrer; then, conveying the uniformly mixed material to an ageing cabin for ageing to sufficiently homogenize the raw materials; next, conveying the material to a forming workshop, and carrying out extrusion molding through an extruder to obtain a blank body; finally, feeding the blank body into a tunnel drying chamber for drying to obtain a finished product. According to the invention, biogas residues obtained through carrying out solid-liquid separation on residual wastes obtained after anaerobic fermentation on organic components in household garbage generated in a garbage treatment process are used as raw materials of the sintered brick, so that the recycling of urban and rural wastes is realized, the harmless, reduction and recycling treatment on the garbage is ensured, meanwhile, the brick preparation cost is greatly reduced, and the 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 natural pond slag 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.
Yet 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 of simple landfill to process, and 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, when alleviating carrying capacity of environment, also can solve the matter of great urgency that China's soil is badly in need of a large amount of organic fertilizer.
In China's town and country rubbish, also have much can second stage employ resource, if the organism in domestic refuse is after anaerobically fermenting produces biogas, can how remaining waste be processed, again utilize, and also becomes one of focus of present social concerns.
Summary of the invention
The object of the present invention is to provide a kind of natural pond slag vitrified brick, the present invention also aims to provide the preparation method of a kind of natural pond slag vitrified brick, utilize organic waste remaining waste after anaerobically fermenting to carry out roasting brickmaking through solid-liquid separation gained natural pond slag, 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 natural pond slag vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 64～74%, coal gangue 15～25%, natural pond slag 5～15%, water 0.5～1.5%, described natural pond slag be organic composition in domestic refuse after anaerobically fermenting produces biogas, remaining waste is through solid-liquid separation gained solid slag.
Described vitrified brick is prepared from by following component by weight percentage: clay 69%, coal gangue 20%, natural pond slag 10%, water 1%.
A preparation method for natural pond slag vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and natural pond slag are pulverized, then, taken by weight percentage following raw material: clay 64～74%, coal gangue 15～25%, natural pond slag 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
The mixtures of materials of step (2) process ageing is delivered to fitting room, through mixing extruder, fine cracking double roller machine, enters again two-stage vacuum extruder for blocks extrusion moulding, 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 ℃; 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 ℃.
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 ℃, and roasting time is 75min, and maturing temperature is 950 ℃.
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 discarded natural pond slag 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, by granularity after fine cracking double roller machine, be less than 1.5mm, 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, SO
2, flue gas heat exchange sprays after depickling, dedusting by alkaline spray column, by aiutage, enters atmosphere, 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 and is polluted control criterion > > (GB18485-2001), meets emission standard.
The present invention adopts the discarded natural pond slag producing in garbage processing procedure as baked brick raw materials, realized the recycling of town and country wastes, ensure the processing of garbage harmless, minimizing and resource utilization, reduced 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 natural pond slag vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 69%, coal gangue 20%, natural pond slag 10%, water 1%, described natural pond slag be organism in domestic refuse after anaerobically fermenting produces biogas, remaining waste is through solid-liquid separation gained solid slag.
A preparation method for natural pond slag vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and natural pond slag are pulverized, then, take by weight percentage following raw material: clay 69%, coal gangue 20%, natural pond slag 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
The mixtures of materials of step (2) process ageing is delivered to fitting room, through mixing extruder, fine cracking double roller machine, enters again two-stage vacuum extruder for blocks extrusion moulding, 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 ℃; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 75min, and described maturing temperature is 950 ℃.
The strength grade of embodiment 1 products obtained therefrom, scum and explosion performance are carried out to sampling Detection, and result is as follows:
Embodiment 2
A kind of natural pond slag vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 64%, coal gangue 19.5%, natural pond slag 15%, water 1.5%, described natural pond slag be organism in domestic refuse after anaerobically fermenting produces biogas, remaining waste is through solid-liquid separation gained solid slag.
A preparation method for natural pond slag vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and natural pond slag are pulverized, then, take by weight percentage following raw material: clay 64%, coal gangue 19.5%, natural pond slag 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
The mixtures of materials of step (2) process ageing is delivered to fitting room, through mixing extruder, fine cracking double roller machine, enters again two-stage vacuum extruder for blocks extrusion moulding, 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 ℃; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 85min, and described maturing temperature is 850 ℃.
The strength grade of embodiment 2 products obtained therefroms, scum and explosion performance are carried out to sampling Detection, and result is as follows:
Embodiment 3
A kind of natural pond slag vitrified brick, described vitrified brick is prepared from by following component by weight percentage: clay 74%, coal gangue 21.5%, natural pond slag 5%, water 0.5%, described natural pond slag be organism in domestic refuse after anaerobically fermenting produces biogas, remaining waste is through solid-liquid separation gained solid slag.
A preparation method for natural pond slag vitrified brick, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and natural pond slag are pulverized, then, take by weight percentage following raw material: clay 74%, coal gangue 21.5%, natural pond slag 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
The mixtures of materials of step (2) process ageing is delivered to fitting room, through mixing extruder, fine cracking double roller machine, enters again two-stage vacuum extruder for blocks extrusion moulding, 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 ℃; Then dried base substrate is sent into tunnel furnace and carry out roasting, described roasting time is 65min, and described maturing temperature is 1050 ℃.
The strength grade of embodiment 3 products obtained therefroms, scum and explosion performance are carried out to sampling Detection, and result is as follows:
The present invention adopts the discarded natural pond slag producing in garbage processing procedure as baked brick raw materials, realized the recycling of town and country wastes, ensure the processing of garbage harmless, minimizing and resource utilization, reduced 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 natural pond slag 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%, natural pond slag 5～15%, water 0.5～1.5%, described natural pond slag be organic composition in domestic refuse after anaerobically fermenting produces biogas, remaining waste is through solid-liquid separation gained solid slag.
2. natural pond according to claim 1 slag vitrified brick, is characterized in that, described vitrified brick is prepared from by following component by weight percentage: clay 69%, coal gangue 20%, natural pond slag 10%, water 1%.
3. a preparation method for natural pond claimed in claim 1 slag vitrified brick, is characterized in that, comprises the following steps:
(1) material storage and pre-treatment:
First, clay, coal gangue and natural pond slag are pulverized, then, taken by weight percentage following raw material: clay 64～74%, coal gangue 15～25%, natural pond slag 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
The mixtures of materials of step (2) process ageing is delivered to fitting room, through mixing extruder, fine cracking double roller machine, enters again two-stage vacuum extruder for blocks extrusion moulding, 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 ℃; 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 ℃.
4. the preparation method of natural pond according to claim 3 slag vitrified brick, it is characterized in that, the pulverizing of the clay in described step (1), coal gangue and natural pond slag 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 natural pond according to claim 3 slag vitrified brick, is characterized in that, the whipping process in described step (1) adopts biaxial rneader to stir.
6. the preparation method of natural pond according to claim 3 slag vitrified brick, is characterized in that, in described step (2), digestion time is 72 hours.
7. the preparation method of natural pond according to claim 3 slag vitrified brick, is characterized in that, in described step (4), be 75min time of drying, and drying temperature is 180 ℃.
8. the preparation method of natural pond according to claim 3 slag vitrified brick, is characterized in that, in described step (4), roasting time is 75min, and maturing temperature is 950 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410367921.1A CN104119067A (en) | 2014-07-30 | 2014-07-30 | Biogas residue sintered brick and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410367921.1A CN104119067A (en) | 2014-07-30 | 2014-07-30 | Biogas residue sintered brick and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537945A (en) * | 2020-12-23 | 2021-03-23 | 河南永泽环境科技有限公司 | Method for making bricks by anaerobic digestion of sludge and biogas residues |
| CN112745102A (en) * | 2020-12-31 | 2021-05-04 | 河北洁城新型建材有限公司 | Sintered insulating brick with high resource utilization rate and processing technology thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202744461U (en) * | 2012-07-13 | 2013-02-20 | 张成双 | Harmless brickmaking system of household garbage |
| CN103588463A (en) * | 2012-08-14 | 2014-02-19 | 刘贤发 | Drought-resistant vegetation brick manufactured from sludge or biogas residue and manufacturing method thereof |
-
2014
- 2014-07-30 CN CN201410367921.1A patent/CN104119067A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202744461U (en) * | 2012-07-13 | 2013-02-20 | 张成双 | Harmless brickmaking system of household garbage |
| CN103588463A (en) * | 2012-08-14 | 2014-02-19 | 刘贤发 | Drought-resistant vegetation brick manufactured from sludge or biogas residue and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537945A (en) * | 2020-12-23 | 2021-03-23 | 河南永泽环境科技有限公司 | Method for making bricks by anaerobic digestion of sludge and biogas residues |
| CN112537945B (en) * | 2020-12-23 | 2022-06-10 | 河南永泽环境科技有限公司 | Method for making bricks by anaerobic digestion of sludge and biogas residues |
| CN112745102A (en) * | 2020-12-31 | 2021-05-04 | 河北洁城新型建材有限公司 | Sintered insulating brick with high resource utilization rate and processing technology thereof |
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Application publication date: 20141029 |