CN105174908A - Method for producing sintering brick by using domestic sludge or river-lake sludge - Google Patents
Method for producing sintering brick by using domestic sludge or river-lake sludge Download PDFInfo
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- CN105174908A CN105174908A CN201510555411.1A CN201510555411A CN105174908A CN 105174908 A CN105174908 A CN 105174908A CN 201510555411 A CN201510555411 A CN 201510555411A CN 105174908 A CN105174908 A CN 105174908A
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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
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- 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 present invention belongs to the technical field of building materials, and particularly relates to a method for producing a sintering brick by using domestic sludge or river-lake sludge. The method comprises: crushing raw materials, and screening; adding fly ash according to a certain ratio, and carrying out stirring homogenization; adding shale powder and coal powder according to a certain ratio, and mixing the ingredients; crushing and screening; aging; carrying out stirring plasticizing; preparing a billet; drying the brick billet; pre-heating the brick billet; firing; and cooling, and discharging from the kiln. According to the present invention, the preparation method is simple, the operation is easy, the garbage is recycled to save the land resources, the production cost is saved, the problem of difficult garbage landfill is effectively solved, and during the firing process, the sludge contains a certain heat, such that the coal consumption is reduced, and the cost is saved.
Description
Technical field
The invention belongs to building material technical field, particularly a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick.
Background technology
Municipal sludge refers to the solid waste produced in city domestic sewage, During Industrial Wastewater Treatment Process, and be the regular product of municipal sewage plant, this sludge moisture content is high, perishable, has strong stink, and dislikes because of, bacterium containing two.The toxic substance such as parasitic ovum and heavy metal.Mud is just sent to refuse landfill or is directly exposed in wilderness by most sewage work and unit in charge of construction, causes serious secondary pollution.
Along with urban wastewater discharge is increasing, the sludge quantity that sewage disposal produces also increases year by year, and sludge treatment faces problems.On the one hand, moisture percentage in sewage sludge is high, volume is large, causes difficulty to transport and landfill, and is easy to produce percolate, polluted underground water and edatope; Two is that heavy metal in mud and parasitic ovum etc. are difficult to remove and stable, no matter adopts which kind of disposal options, all very easily produces secondary pollution, hinder the recycling of mud; Three be produce in sludge incineration process a large amount of two dislike because of, HUMAN HEALTH is threatened.Therefore, the method such as landfill, burning, Land_use change that specific resistance to filtration is conventional is restricted, and how to solve recycling sludge and utilize some row problems in process, seeking suitable recycling sludge utilization ways is current field of Environment Protection problem demanding prompt solution.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick, effectively solves current sludge treatment difficulty, and it is serious that vitrified brick makes land resources waste, the defect that cost of manufacture is high.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick, comprises the following steps:
Step 1: mud raw material tears up, and is specially, tears up the domestic sludge after air-dry or lake, river mud raw material in shredding machine, for subsequent use;
Step 2: add flyash in proportion, stirs homogenizing, is specially, and adds flyash, stir homogenizing, obtain mixing raw material in stirrer in the domestic sludge obtained after step 1 is torn up or lake, river mud raw material;
Step 3: add shale powder and coal dust in proportion, mix, be specially, adds shale powder and coal dust, obtains compound after mixing in the mixing raw material that step 2 obtains;
Step 4: pulverize, sieve, be specially, compound step 3 obtained is pulverized through pulverizer, sieves by vibrations sieving machine, obtains material thing powder;
Step 5: ageing, is specially, and material thing powder step 4 obtained sends into ageing pond, ageing 72 hours;
Step 6: stir plasticizing, be specially, send in stirrer by the material thing after step 5 ageing, add water stirring, obtains pug;
Step 7: base, is specially, and compound is extruded into adobe by vacuum extruder by the pug after stirring plasticizing in step 6;
Step 8: brick bat drying, is specially, and the adobe after step 7 is shaping is included in tunnel furnace drying shed and dried, and kiln drying temperature rises to 100 DEG C, drying time period 30-35 hour by normal temperature is slow;
Step 9: adobe preheating, is specially, includes the adobe after drying in step 8 preheating of in tunnel furnace preheating section, and in kiln, preheating temperature is by 200 DEG C-600 DEG C slow liters, preheating duration 15-17 hour;
Step 10; Fire, be specially, include the adobe after preheating in step 9 in tunnel kiln sintering section and fire, in kiln, sintering temperature is by 600 DEG C-1000 DEG C slow liters, fires duration 15-17 hour;
Step 11: cooling kiln discharge, be specially, the adobe after step 10 being sintered is included in tunnel furnace cooling section, introduces freezing air and cools, kiln discharge.
As optimization, in above-mentioned steps 1, domestic sludge feed moisture content < 30%, lake, river mud feed moisture content < 20%, < 10mm surmised by the domestic sludge obtained or lake, river sewage sludge powder raw material.
As optimization, in above-mentioned steps 2, domestic sludge powder and flyash quality are than being 1:1, and lake, river sewage sludge powder and flyash quality are than being 1:4.
As optimization, in above-mentioned steps 3, domestic sludge and coal dust ash mixture are 20:76.5:3.5 with shale powder and quality of pc ratio, and lake, river mud and coal dust ash mixture are 45:50:5 with shale powder and quality of pc ratio.
As optimization, in above-mentioned steps 4, material thing powder diameter < 0.3mm.
As optimization, in above-mentioned steps 6, pug water content is 17%.
As optimization, in above-mentioned steps 7, the vacuum tightness of vacuum extruder is 0.5-0.8Mpa, extrusion pressure > 7Mpa.
The invention has the beneficial effects as follows: preparation method is simple, easy to operate, is recycled, economize the land resource by rubbish, save production cost, effectively solve the problem of garbage loading embeading difficulty, and in sintering procedure, because mud contains certain heat, decrease the usage quantity of coal, provide cost savings.
Accompanying drawing explanation
Fig. 1 is the schema figure utilizing domestic sludge or lake, river mud to make the method for vitrified brick of the present invention;
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1: as shown in Figure 1, the domestic sludge that utilizes of the present embodiment makes the method for vitrified brick, comprises the following steps:
Step 1: mud raw material tears up, and is specially, tears up the domestic sludge raw material after air-dry in shredding machine, for subsequent use;
Step 2: add flyash in proportion, stirs homogenizing, is specially, and adds flyash, stir homogenizing, obtain mixing raw material in stirrer in lake, the river mud raw material obtained after step 1 is torn up;
Step 3: add shale powder and coal dust in proportion, mix, be specially, adds shale powder and coal dust, obtains compound after mixing in the mixing raw material that step 2 obtains;
Step 4: pulverize, sieve, be specially, compound step 3 obtained is pulverized through pulverizer, sieves by vibrations sieving machine, obtains material thing powder;
Step 5: ageing, is specially, and material thing powder step 4 obtained sends into ageing pond, ageing 72 hours;
Step 6: stir plasticizing, be specially, send in stirrer by the material thing after step 5 ageing, add water stirring, obtains pug;
Step 7: base, is specially, and compound is extruded into adobe by vacuum extruder by the pug after stirring plasticizing in step 6;
Step 8: brick bat drying, is specially, and the adobe after step 7 is shaping is included in tunnel furnace drying shed and dried, and kiln drying temperature rises to 100 DEG C, drying time period 30-35 hour by normal temperature is slow;
Step 9: adobe preheating, is specially, includes the adobe after drying in step 8 preheating of in tunnel furnace preheating section, and in kiln, preheating temperature is by 200 DEG C-600 DEG C slow liters, preheating duration 15-17 hour;
Step 10; Fire, be specially, include the adobe after preheating in step 9 in tunnel kiln sintering section and fire, in kiln, sintering temperature is by 600 DEG C-1000 DEG C slow liters, fires duration 15-17 hour;
Step 11: cooling kiln discharge, be specially, the adobe after step 10 being sintered is included in tunnel furnace cooling section, introduces freezing air and cools, kiln discharge.
In above-mentioned steps 1, domestic sludge feed moisture content < 30%, < 10mm surmised by the domestic sludge powder stock obtained.
In above-mentioned steps 2, domestic sludge powder and flyash quality are than being 1:1.
In above-mentioned steps 3, domestic sludge and coal dust ash mixture are 20:76.5:3.5 with shale powder and quality of pc ratio.
In above-mentioned steps 4, material thing powder diameter < 0.3mm.
In above-mentioned steps 6, pug water content is 17%.
In above-mentioned steps 7, the vacuum tightness of vacuum extruder is 0.5-0.8Mpa, extrusion pressure > 7Mpa.
Embodiment 2: as shown in Figure 1, lake, the river mud that utilizes of the present embodiment makes the method for vitrified brick, it is characterized in that, comprises the following steps:
Step 1: mud raw material tears up, and is specially, tears up lake, the river mud raw material after air-dry in shredding machine, for subsequent use;
Step 2: add flyash in proportion, stirs homogenizing, is specially, and adds flyash, stir homogenizing, obtain mixing raw material in stirrer in lake, the river mud raw material obtained after step 1 is torn up;
Step 3: add shale powder and coal dust in proportion, mix, is specially in the mixing raw material obtained to step 2 and adds shale powder and coal dust, obtain compound after mixing;
Step 4: pulverize, sieve, be specially, compound step 3 obtained is pulverized through pulverizer, sieves by vibrations sieving machine, obtains material thing powder;
Step 5: ageing, is specially, and material thing powder step 4 obtained sends into ageing pond, ageing 72 hours;
Step 6: stir plasticizing, be specially, send in stirrer by the material thing after step 5 ageing, add water stirring, obtains pug;
Step 7: base, is specially, and compound is extruded into adobe by vacuum extruder by the pug after stirring plasticizing in step 6;
Step 8: brick bat drying, is specially, by step: 7 shaping after adobe include in tunnel furnace drying shed and dry, kiln drying temperature rises to 100 DEG C, drying time period 30-35 hour by normal temperature is slow;
Step 9: adobe preheating, is specially, includes the adobe after drying in step 8 preheating of in tunnel furnace preheating section, and in kiln, preheating temperature is by 200 DEG C-600 DEG C slow liters, preheating duration 15-17 hour;
Step 10; Fire, be specially, include the adobe after preheating in step 9 in tunnel kiln sintering section and fire, in kiln, sintering temperature is by 600 DEG C-1000 DEG C slow liters, fires duration 15-17 hour;
Step 11: cooling kiln discharge, be specially, the adobe after step 10 being sintered is included in tunnel furnace cooling section, introduces freezing air and cools, kiln discharge.
In above-mentioned steps 1, lake, river mud feed moisture content < 20%, < 10mm surmised by lake, the river sewage sludge powder raw material obtained.
In above-mentioned steps 2, lake, river sewage sludge powder and flyash quality are than being 1:4.
In above-mentioned steps 3, lake, river mud and coal dust ash mixture are 45:50:5 with shale powder and quality of pc ratio.
In above-mentioned steps 4, material thing powder diameter < 0.3mm.
In above-mentioned steps 6, pug water content is 17%.
In above-mentioned steps 7, the vacuum tightness of vacuum extruder is 0.5-0.8Mpa, extrusion pressure > 7Mpa.
The method preparation method utilizing domestic sludge or lake, river mud to make vitrified brick of the present invention is simple, easy to operate, recycled by rubbish, make vitrified brick by mud, economize the land resource, save production cost, effectively solve garbage loading embeading difficulty, deal with the problem that can cause secondary pollution improperly, and in sintering procedure, because mud contains certain heat, decrease the usage quantity of coal, provide cost savings.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. utilize domestic sludge or lake, river mud to make a method for vitrified brick, it is characterized in that, comprise the following steps:
Step 1: mud raw material tears up, and is specially, tears up the domestic sludge after air-dry or lake, river mud raw material in shredding machine, for subsequent use;
Step 2: add flyash in proportion, stirs homogenizing, is specially, and adds flyash, stir homogenizing, obtain mixing raw material in stirrer in the domestic sludge obtained after step 1 is torn up or lake, river mud raw material;
Step 3: add shale powder and coal dust in proportion, mix, be specially, adds shale powder and coal dust, obtains compound after mixing in the mixing raw material that step 2 obtains;
Step 4: pulverize, sieve, be specially, compound step 3 obtained is pulverized through pulverizer, sieves by vibrations sieving machine, obtains material thing powder;
Step 5: ageing, is specially, and material thing powder step 4 obtained sends into ageing pond, ageing 72 hours;
Step 6: stir plasticizing, be specially, send in stirrer by the material thing after step 5 ageing, add water stirring, obtains pug;
Step 7: base, is specially, and compound is extruded into adobe by vacuum extruder by the pug after stirring plasticizing in step 6;
Step 8: brick bat drying, is specially, and the adobe after step 7 is shaping is included in tunnel furnace drying shed and dried, and kiln drying temperature rises to 100 DEG C, drying time period 30-35 hour by normal temperature is slow;
Step 9: adobe preheating, is specially, includes the adobe after drying in step 8 preheating of in tunnel furnace preheating section, and in kiln, preheating temperature is by 200 DEG C-600 DEG C slow liters, preheating duration 15-17 hour;
Step 10; Fire, be specially, include the adobe after preheating in step 9 in tunnel kiln sintering section and fire, in kiln, sintering temperature is by 600 DEG C-1000 DEG C slow liters, fires duration 15-17 hour;
Step 11: cooling kiln discharge, be specially, the adobe after step 10 being sintered is included in tunnel furnace cooling section, introduces freezing air and cools, kiln discharge.
2. a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick according to claim 1, it is characterized in that: in described step 1, domestic sludge feed moisture content < 30%, lake, river mud feed moisture content < 20%, the domestic sludge obtained or lake, river sewage sludge powder raw material particle size < 10mm.
3. a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick according to claim 1, is characterized in that: in described step 2, and domestic sludge powder and flyash quality are than being 1:1, and lake, river sewage sludge powder and flyash quality are than being 1:4.
4. a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick according to claim 1, it is characterized in that: in described step 3, domestic sludge and coal dust ash mixture are 20:76.5:3.5 with shale powder and quality of pc ratio, and lake, river mud and coal dust ash mixture are 45:50:5 with shale powder and quality of pc ratio.
5. a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick according to claim 1, is characterized in that: in described step 4, material thing powder diameter < 0.3mm.
6. a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick according to claim 1, it is characterized in that: in described step 6, pug water content is 17%.
7. a kind of method utilizing domestic sludge or lake, river mud to make vitrified brick according to any one of claim 1 to 6, it is characterized in that: in described step 7, the vacuum tightness of vacuum extruder is 0.5-0.8Mpa, extrusion pressure > 7Mpa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510555411.1A CN105174908A (en) | 2015-09-01 | 2015-09-01 | Method for producing sintering brick by using domestic sludge or river-lake sludge |
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| CN201510555411.1A CN105174908A (en) | 2015-09-01 | 2015-09-01 | Method for producing sintering brick by using domestic sludge or river-lake sludge |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365610A (en) * | 2016-10-26 | 2017-02-01 | 长沙聚优能环保科技有限公司 | Method for making shale bricks with calcium fluoride sludge and treatment method of fluorine-containing wastewater |
| CN106747293A (en) * | 2017-01-06 | 2017-05-31 | 柳州市正龙机械制造有限公司 | The wet mud brick-making method for directly being produced using urban wastewater treatment firm |
| CN107235707A (en) * | 2017-06-29 | 2017-10-10 | 铜仁学院 | A kind of silt sintering brick and preparation method thereof |
| CN107814553A (en) * | 2017-09-27 | 2018-03-20 | 石狮市鸿辉环保建材有限公司 | A kind of production method of domestic sewage factory firing sludge clinker bricks in environmental protection |
| CN110423123A (en) * | 2019-07-31 | 2019-11-08 | 洛阳中新能再生能源有限公司 | A kind of comprehensive utilization process of city sludge in sintering brickmaking |
| CN111943646A (en) * | 2020-08-13 | 2020-11-17 | 海盐达贝尔新型建材有限公司 | Sewage sludge sintering permeable pavement brick processing production line and production process |
| CN115286421A (en) * | 2022-07-29 | 2022-11-04 | 黄河水利委员会黄河水利科学研究院 | Lake and reservoir sludge sintered brick and preparation method thereof |
| CN117303842A (en) * | 2023-08-15 | 2023-12-29 | 南京交通职业技术学院 | Brick making formula, technology and application based on dredging sludge |
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2015
- 2015-09-01 CN CN201510555411.1A patent/CN105174908A/en active Pending
Patent Citations (1)
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| CN201193217Y (en) * | 2008-03-17 | 2009-02-11 | 彭强 | Device for producing sludge sintered bricks |
Non-Patent Citations (1)
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| 陈宝璠: "《土木工程材料》", 31 July 2012, 中国建材工业出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365610A (en) * | 2016-10-26 | 2017-02-01 | 长沙聚优能环保科技有限公司 | Method for making shale bricks with calcium fluoride sludge and treatment method of fluorine-containing wastewater |
| CN106747293A (en) * | 2017-01-06 | 2017-05-31 | 柳州市正龙机械制造有限公司 | The wet mud brick-making method for directly being produced using urban wastewater treatment firm |
| CN107235707A (en) * | 2017-06-29 | 2017-10-10 | 铜仁学院 | A kind of silt sintering brick and preparation method thereof |
| CN107814553A (en) * | 2017-09-27 | 2018-03-20 | 石狮市鸿辉环保建材有限公司 | A kind of production method of domestic sewage factory firing sludge clinker bricks in environmental protection |
| CN110423123A (en) * | 2019-07-31 | 2019-11-08 | 洛阳中新能再生能源有限公司 | A kind of comprehensive utilization process of city sludge in sintering brickmaking |
| CN111943646A (en) * | 2020-08-13 | 2020-11-17 | 海盐达贝尔新型建材有限公司 | Sewage sludge sintering permeable pavement brick processing production line and production process |
| CN115286421A (en) * | 2022-07-29 | 2022-11-04 | 黄河水利委员会黄河水利科学研究院 | Lake and reservoir sludge sintered brick and preparation method thereof |
| CN117303842A (en) * | 2023-08-15 | 2023-12-29 | 南京交通职业技术学院 | Brick making formula, technology and application based on dredging sludge |
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Application publication date: 20151223 |