CN103408285A - Method for adjusting matching degree of forming parameters of coal ash autoclaved standard brick - Google Patents
Method for adjusting matching degree of forming parameters of coal ash autoclaved standard brick Download PDFInfo
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Abstract
The invention relates to a method for adjusting the matching degree of forming parameters of a coal ash autoclaved standard brick. The adjusted parameters comprise the following important parameters including dry raw material ratio, feeding door opening time, material distributing bed moving speed and rocking bar swinging times, wherein I, the dry raw materials comprises the following components in parts by mass: 46 to 50 parts of coal ash, 7 to 9 parts of quick lime, 3.6 to 4.4 parts of dust-removing lime, 20 to 24 parts of gravel and 16 to 20 parts of coarse slag, wherein the granularity of the gravel is less than or equal to 5 mm and 9.4 to 10 percent of water is added into the dry materials; II, the feeding door opening time is controlled to be 0.1 to 0.3 second; III, the rated value of the material distributing bed moving speed is 1.8 to 2.2 m/s and the normal set value is 70 to 80 percent of the rated value; IV, technical parameters of material distribution are controlled, i.e., a rocking bar swings for 5 to 6 times and a mould frame charging depth is 220 mm. By adopting the method for adjusting the matching degree of the forming parameters of the coal ash autoclaved standard brick, the blank formation qualified ratio of manufactured standard bricks is high.
Description
Technical field
The present invention relates to a kind of coal ash autoclaved standard square molding parameter Matching and modification method.
Background technology
Coal ash autoclaved standard square is a kind of novel energy-saving construction material, is also the substitute of common clay brick (being common brick).At coal ash autoclaved standard square in process of production, relate to Raw material processing preparation, batching, Jia Shui and mix, clear up the processes such as heat release, shaped by fluid pressure, steamed press operation.Wherein regulate and control many kinds of production technology parameters, it comprises: flyash loss on ignition, flyash granularity, compound water ratio, unslaked lime digestion time, the effective CaO content that delivers from godown, cloth number of times and loading depth, moulding precompression etc.Molding parameter just plays conclusive effect to quality, the output of coal ash autoclaved standard square.
In production operation is in the past adjusted, proportioning raw materials is unstable, usually the quantity and the quality that are all passive dependence raw material supplied materials are carried out the proportioning adjusting, because proportioning raw materials amplitude of accommodation size is uncontrollable, regulate number of times more frequent, be very easy to occur the chaotic and fluctuation of coal ash autoclaved standard square production operation technical parameter.While making coal ash autoclaved standard square moulding, technical parameter can not reach optimum regime, the molding blank intensity difference often occurs and fall brick, compound digestion time deficiency and finished product blistering, the bad phenomenon such as the empty pine of the inadequate base substrate of cloth number of times, losing fangle, standard square blank forming qualification rate is lower.
Summary of the invention
In order to overcome the above-mentioned deficiency of existing coal ash autoclaved standard square molding parameter Matching and modification method, the invention provides a kind of coal ash autoclaved standard square molding parameter Matching and modification method that standard square blank forming qualification rate is higher.
The parameter of this coal ash autoclaved standard square molding parameter Matching and modification method adjustment comprises that following important parameter has dry proportioning raw materials, feeding gate opening time, cloth bed translational speed and rocking bar number of oscillations:
IThe mass parts of dry proportioning raw materials is
46～50 parts, flyash; 7～9 parts of unslaked limes; 3.6～4.4 parts of dedusting limes;
20～24 parts of rubbles; 16～20 parts of thick slags;
Granularity≤the 5mm of its medium stone; Thick slag be coal dust in the coal firing boiler internal-combustion, at afterbody, through under the suction function of induced draft fan, contain a large amount of many particulate smoke and flow to the stove tail, the thicker particle of separating, settling down through fly-ash separator filtration, collection, selection by winnowing.
The water that adds dry raw material 9.4～10% (quality).
II, in order to guarantee feeding coal, the feeding gate opening time was controlled between 0.1 ~ 0.3 second.
III, cloth bed translational speed rated value is 1.8～2.2 m/s, normal set(ting)value be its specified 70～80%.
IV, the Strand Feeding Technique parameter controls: rocking bar swings (5 ~ 6/cloth cycle of circle) 5 ~ 6 times, and framed loading depth is 220mm.
Above-mentioned coal ash autoclaved standard square molding parameter Matching and modification method is characterized in that:
IThe mass parts of dry optimum proportion of materials is
48 parts, flyash; 8 parts of unslaked limes; 4 parts of dedusting limes;
22 parts of rubbles; 1 part of thick slag; The water that adds dry raw material 9.6%;
III, cloth bed translational speed rated value is 2m/s, normal set(ting)value be its specified 75%.
The parameter of saying in detail this coal ash autoclaved standard square molding parameter Matching and modification method adjustment also has following parameter:
IBefore dry proportioning raw materials, there is raw material to prepare and do proportioning raw materials
A unslaked lime enters factory's technical indicator standard-required: effective CaO content >=58%, and digestion time: 6～10 minutes, digestion condition: 50～60 degree.
The broken jaw crusher that adopts of b unslaked lime first paragraph, sheet separation, Hubei Province 6～10 mm, the second segment crusher adopts ball mill, and in ball mill, grinding time is 2.5～3.5 minutes.
The thick slag of c furnace bottom enters factory's moisture: 20～24%, and the fore worker that puts in storage is except the macrobead of >=5mm.
The mass parts of the dry proportioning raw materials of d is
46～50 parts, flyash; 7～9 parts of unslaked limes; 3.6～4.4 parts of dedusting limes;
20～24 parts of rubbles; 16～20 parts of thick slags;
Granularity≤the 5mm of its medium stone;
The water that adds dry raw material 9.4～10% (quality).
The e material enters the stirrer order
The order added is followed successively by flyash, rubble, thick slag, unslaked lime, dedusting lime and water.
F brick machine is before feeding, and wheel roller pulverizes macrobead, screens out >=bulk of 5mm.
The gap of four slide blocks of g regulator solution brick pressing machine and support is between 0.2 ~ 0.5mm.
H finely tunes mold and punching head, makes plane and drift plane parallel on framed and die cavity, and error is within 0.2mm.
On i maintenance mould, plane and cloth frame press table gap are less than 1mm.
II, moulding process the technical parameter Matching and modification
The a feeding gate opening time was controlled between 0.1～0.3 second.
III, cloth bed translational speed rated value is 1.8～2.2m/s, normal set(ting)value be its specified 70～80%.
IV, the Strand Feeding Technique parameter controls:
The a rocking bar swings (5 ~ 6/cloth cycle of circle) 5 ~ 6 times, and framed loading depth is 220mm.
B forming pressure set(ting)value is 130-140 bar, and precompression is not less than 115 bar, and (10 bar=1Mpa) peak pressure is not more than 180.(in order to prevent that hydro-cylinder from breaking and the sealing-ring leakage of oil, ad hoc moulding peak pressure 180 bar that surely allow.）
C controls 15～16 seconds hydraulic brick press machine cycles of operation, robot cycle of operation synchronous interlocking operation.
On coal ash autoclaved standard square molding parameter Matching and modification method, it is characterized in that in step
IVC after, also set the parameter of following operation:
VNon-productive operation after moulding
The steam-cured trolley travelling steady arm of a is sensitive, and accurately and reliably, (before piling, steam-cured dolly automatic in-position rate 100%) orbit is without the buildup obstacle.
B, after the robot piling completes last one deck, hangs the U-shaped muscle that protects of anti-collapse brick in time, prevents between steam-cured dolly collision or rock in operational process causing the brick that collapses, shattering.
After the c blank forming, must enter within an hour insulation in autoclave, prevent base substrate moisture excessive evaporation, and cause the steam-cured not saturating heart, be prone to living brick, make finished product ultimate compression strength and folding strength not up to standard.
Beneficial effect fruit of the present invention
After implementing coal ash autoclaved standard square molding parameter Matching and modification method, coal ash autoclaved standard square quality fast lifting.Wherein flyash digestion amount, by 11.5 ten thousand tons in 2011, is brought up to 160,000 tons in 2012, consumes 4.5 ten thousand tons, flyash more; Coal ash autoclaved standard square output, yield rate are respectively by 10,203 ten thousand, 94.5% 15,006 ten thousand, 98% of bringing up to 2012 of 2011.Visible, coal ash autoclaved standard square output improved 4,803 ten thousand than the prior year in 2012, and yield rate has improved 3.5% than the prior year.Reduce recirculation and cause a large amount of waste materials because of moulding poor (falling brick).
Benefit calculation is as follows:
1, social benefit:According to 1,400,000 blocks of coal ash autoclaved standard squares of every production (clay brick), destroy 1 mu of soil, topple over and dispose 23.5 yuan/tons of calculating of flyash:
Save soil: 1,400,000=107.2 mu soils of 15,006 ten thousand ÷
Minimize transport costs: 4.5 ten thousand * 23.5 yuan/tons=105.8 ten thousand yuan
2, direct economic benefit:According to 0.225 yuan/piece of standard square monolithic cost in 2012, average 0.25 yuan/piece of sales price calculates: create economic benefit: 15,006 ten thousand * (0.25 yuan/piece-0.225 yuan/piece)=375.15 ten thousand yuan.
Add up to and create economic benefit: 375.15 ten thousand yuan+105.8 ten thousand yuan=480.95 ten thousand yuan.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is carried out to clear, complete description.Described embodiment is one embodiment of the present of invention, rather than limitation of the present invention.Those of ordinary skills do not have the technical scheme of the coal ash autoclaved standard square molding parameter Matching and modification method obtained under the creative work prerequisite, all belong to protection scope of the present invention.
Embodiment
The present embodiment is to 200,000,000 (coal ash autoclaved standard square) production line molding parameter Matching and modification methods.(according to annual brick machine production operational availability 91.2%, calculate, output is 2.5 ten thousand pieces/hour)
IBefore dry proportioning raw materials, there is raw material to prepare and do proportioning raw materials
The raw material that following a, b, c make a living antenatal is prepared
A unslaked lime enters factory's technical indicator standard-required: effective CaO content >=58%, and digestion time: 8---12 minutes, digestion condition: 50-60 degree.
Broken jaw crusher, the sheet separation, Hubei Province of adopting of b unslaked lime first paragraph
6-10mM, the second segment crusher adopts ball mill, grinding time in ball mill
3Minute.
The thick slag of c furnace bottom enters factory's moisture:
20-24%, the fore worker that puts in storage is except the macrobead of>=5mm.
The mass parts of the dry proportioning raw materials of d is
48 parts, flyash; 8 parts of unslaked limes; 4 parts of dedusting limes;
22 parts of rubbles; Thick 18 parts of every part of 58kg of slag, and in the dry raw material of 100 parts, add the water of 560 kg.
The present embodiment is batch production.
The e material enters the stirrer order
The order added is followed successively by flyash, rubble, thick slag, unslaked lime, dedusting lime and water.
F brick machine is before feeding, and wheel roller pulverizes macrobead, screens out >=bulk of 5mm.
Following g, h, i are the gap adjustment of shaped by fluid pressure brick machine
gThe gap of four slide blocks of regulator solution brick pressing machine and support is between 0.2 ~ 0.5mm.
H finely tunes mold and punching head, makes plane and drift plane parallel on framed and die cavity, and error is within 0.2mm.
On i maintenance mould, plane and cloth frame press table gap are less than 0.8mm.
II, moulding process the technical parameter Matching and modification
The a feeding gate opening time is controlled at 0.2 second.
III, cloth bed translational speed rated value is 2m/s, normal set(ting)value is 1.5m.
IV, the Strand Feeding Technique parameter controls:
The a rocking bar swings 5 times, and framed loading depth is 220mm.
B forming pressure set(ting)value is 135 ± 5 bar, and precompression is not less than 115 bar, and (10 bar=1Mpa) peak pressure is not more than 180.
C controls 16 seconds hydraulic brick press machine cycles of operation, robot cycle of operation synchronous interlocking operation.
VNon-productive operation after moulding
The steam-cured trolley travelling steady arm of a is sensitive, and accurately and reliably, (before piling, steam-cured dolly automatic in-position rate 100%) orbit is without the buildup obstacle.
B, after the robot piling completes last one deck, hangs the U-shaped muscle that protects of anti-collapse brick in time, prevents between steam-cured dolly collision or rock in operational process causing the brick that collapses, shattering.
After the c blank forming, enter insulation in autoclave in 45 minutes, prevent base substrate moisture excessive evaporation, and cause the steam-cured heart thoroughly, be prone to living brick, make finished product ultimate compression strength and folding strength not up to standard.
Claims (6)
1. coal ash autoclaved standard square molding parameter Matching and modification method, the parameter of adjustment comprises that following important parameter has dry proportioning raw materials, feeding gate opening time, cloth bed translational speed and rocking bar number of oscillations:
IThe mass parts of dry proportioning raw materials is
46～50 parts, flyash; 7～9 parts of unslaked limes; 3.6～4.4 parts of dedusting limes;
20～24 parts of rubbles; 16～20 parts of thick slags;
Granularity≤the 5mm of its medium stone; The water that adds dry raw material 9.4～10%;
IIThe feeding gate opening time was controlled between 0.1 ~ 0.3 second;
IIICloth bed translational speed rated value is 1.8～2.2 m/s, normal set(ting)value be its specified 70～80%;
IVThe Strand Feeding Technique parameter is controlled: rocking bar swings 5 ~ 6 times, and framed loading depth is 220mm.
2. coal ash autoclaved standard square molding parameter Matching and modification method according to claim 1 is characterized in that:
IThe mass parts of dry optimum proportion of materials is
48 parts, flyash; 8 parts of unslaked limes; 4 parts of dedusting limes;
22 parts of rubbles; 1 part of thick slag; The water that adds dry raw material 9.6%;
IIICloth bed translational speed rated value is 2m/s, normal set(ting)value be its specified 75%.
3. coal ash autoclaved standard square molding parameter Matching and modification method according to claim 1 is characterized in that the parameter of adjusting also has following parameter:
IBefore dry proportioning raw materials, there is raw material to prepare and do proportioning raw materials
A unslaked lime enters factory's technical indicator standard-required: effective CaO content >=58%, and digestion time: 6～10 minutes, digestion condition: 50～60 degree;
The broken jaw crusher that adopts of b unslaked lime first paragraph, sheet separation, Hubei Province 6～10 mm, the second segment crusher adopts ball mill, and in ball mill, grinding time is 2.5～3.5 minutes;
The thick slag of c furnace bottom enters factory's moisture: 20～24%, and the fore worker that puts in storage is except the macrobead of >=5mm;
The mass parts of the dry proportioning raw materials of d is
46～50 parts, flyash; 7～9 parts of unslaked limes; 3.6～4.4 parts of dedusting limes;
20～24 parts of rubbles; 16～20 parts of thick slags;
Granularity≤the 5mm of its medium stone;
The water that adds dry raw material 9.4～10%;
The e material enters the stirrer order
The order added is followed successively by flyash, rubble, thick slag, unslaked lime, dedusting lime and water;
F brick machine is before feeding, and wheel roller pulverizes macrobead, screens out >=bulk of 5mm;
gThe gap of four slide blocks of regulator solution brick pressing machine and support is between 0.2 ~ 0.5mm;
H finely tunes mold and punching head, makes plane and drift plane parallel on framed and die cavity, and error is within 0.2mm;
On i maintenance mould, plane and cloth frame press table gap are less than 1mm;
IIThe technical parameter Matching and modification of moulding process
The a feeding gate opening time was controlled between 0.1～0.3 second;
IIICloth bed translational speed rated value is 1.8～2.2m/s, normal set(ting)value be its specified 70～80%;
IVThe Strand Feeding Technique parameter is controlled
The a rocking bar swings 5 ~ 6 times, and framed loading depth is 220mm;
B forming pressure set(ting)value, precompression is not less than 115 bar; In order to prevent that hydro-cylinder from breaking and the sealing-ring leakage of oil, moulding peak pressure 180 bar;
cControl 15～16 seconds hydraulic brick press machine cycles of operation, robot cycle of operation synchronous interlocking operation.
4. coal ash autoclaved standard square molding parameter Matching and modification method according to claim 3 is characterized in that:
IVDuring the Strand Feeding Technique parameter is controlled
B forming pressure set(ting)value is 130-140 bar.
5. coal ash autoclaved standard square molding parameter Matching and modification method according to claim 3, is characterized in that in step
IVC after, also set the parameter of following operation:
VNon-productive operation after moulding
The steam-cured trolley travelling steady arm of a is sensitive, and accurately and reliably, orbit is without the buildup obstacle;
B, after the robot piling completes last one deck, hangs the U-shaped muscle that protects of anti-collapse brick in time, prevents between steam-cured dolly collision or rock in operational process causing the brick that collapses, shattering;
After the c blank forming, must enter within an hour insulation in autoclave, prevent base substrate moisture excessive evaporation, and cause the steam-cured not saturating heart, be prone to living brick, make finished product ultimate compression strength and folding strength not up to standard.
6. coal ash autoclaved standard square molding parameter Matching and modification method according to claim 4, is characterized in that in step
IVC after, also set the parameter of following operation:
VNon-productive operation after moulding
The steam-cured trolley travelling steady arm of a is sensitive, and accurately and reliably, orbit is without the buildup obstacle;
B, after the robot piling completes last one deck, hangs the U-shaped muscle that protects of anti-collapse brick in time, prevents between steam-cured dolly collision or rock in operational process causing the brick that collapses, shattering;
After the c blank forming, must enter within an hour insulation in autoclave, prevent base substrate moisture excessive evaporation, and cause the steam-cured not saturating heart, be prone to living brick, make finished product ultimate compression strength and folding strength not up to standard.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876523A (en) * | 2015-05-22 | 2015-09-02 | 太原钢铁(集团)有限公司 | Autoclaved flyash-lime brick and preparation method thereof |
| CN104892018A (en) * | 2015-05-22 | 2015-09-09 | 太原钢铁(集团)有限公司 | Preparation method of autoclaved fly ash perforated brick |
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| CN102757210A (en) * | 2012-04-10 | 2012-10-31 | 朔州市润臻新技术开发有限公司 | Method for producing high-performance fly ash steam-pressing brick with groove |
| CN202952370U (en) * | 2012-11-26 | 2013-05-29 | 南京诺固新材料有限公司 | Autoclaved aerated concrete block production equipment |
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| CN101468492A (en) * | 2007-12-28 | 2009-07-01 | 曾红伟 | Fly ash steam-pressing brisk production chain |
| CN101672084A (en) * | 2009-08-14 | 2010-03-17 | 准格尔旗粉煤灰煤矸石研发中心 | Fly ash stilled brick and preparation method thereof |
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| CN104876523A (en) * | 2015-05-22 | 2015-09-02 | 太原钢铁(集团)有限公司 | Autoclaved flyash-lime brick and preparation method thereof |
| CN104892018A (en) * | 2015-05-22 | 2015-09-09 | 太原钢铁(集团)有限公司 | Preparation method of autoclaved fly ash perforated brick |
| CN104892018B (en) * | 2015-05-22 | 2016-09-21 | 太原钢铁(集团)有限公司 | A kind of preparation method of autoclaved fly ash porous brick |
| CN104876523B (en) * | 2015-05-22 | 2017-10-17 | 太原钢铁(集团)有限公司 | A kind of autoclaved fly ash brick and preparation method thereof |
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