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 PDF

Info

Publication number
CN103408285A
CN103408285A CN2013102302251A CN201310230225A CN103408285A CN 103408285 A CN103408285 A CN 103408285A CN 2013102302251 A CN2013102302251 A CN 2013102302251A CN 201310230225 A CN201310230225 A CN 201310230225A CN 103408285 A CN103408285 A CN 103408285A
Authority
CN
China
Prior art keywords
parts
coal ash
brick
parameter
ash autoclaved
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.)
Granted
Application number
CN2013102302251A
Other languages
Chinese (zh)
Other versions
CN103408285B (en
Inventor
胡荣建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyuan Iron and Steel Group Co Ltd
Original Assignee
Taiyuan Iron and Steel Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taiyuan Iron and Steel Group Co Ltd filed Critical Taiyuan Iron and Steel Group Co Ltd
Priority to CN201310230225.1A priority Critical patent/CN103408285B/en
Publication of CN103408285A publication Critical patent/CN103408285A/en
Application granted granted Critical
Publication of CN103408285B publication Critical patent/CN103408285B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Coal ash autoclaved standard square molding parameter Matching and modification method
  
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.
CN201310230225.1A 2013-06-11 2013-06-11 Method for adjusting matching degree of forming parameters of coal ash autoclaved standard brick Active CN103408285B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310230225.1A CN103408285B (en) 2013-06-11 2013-06-11 Method for adjusting matching degree of forming parameters of coal ash autoclaved standard brick

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310230225.1A CN103408285B (en) 2013-06-11 2013-06-11 Method for adjusting matching degree of forming parameters of coal ash autoclaved standard brick

Publications (2)

Publication Number Publication Date
CN103408285A true CN103408285A (en) 2013-11-27
CN103408285B CN103408285B (en) 2014-12-17

Family

ID=49601344

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310230225.1A Active CN103408285B (en) 2013-06-11 2013-06-11 Method for adjusting matching degree of forming parameters of coal ash autoclaved standard brick

Country Status (1)

Country Link
CN (1) CN103408285B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102452827A (en) * 2010-10-22 2012-05-16 孙清海 Autoclaved fly ash brick
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102452827A (en) * 2010-10-22 2012-05-16 孙清海 Autoclaved fly ash brick
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

Cited By (4)

* Cited by examiner, † Cited by third party
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
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

Also Published As

Publication number Publication date
CN103408285B (en) 2014-12-17

Similar Documents

Publication Publication Date Title
CN103880464B (en) Preparation process of concrete porous brick prepared from tubular pile residual slurry and waste incineration slag
CN103396155B (en) Aerated concrete block and preparation method thereof
CN102101792A (en) Production process of light foam ceramic bricks
CN102910883A (en) Antimony tailing aerated concrete block and preparation method thereof
CN103408285B (en) Method for adjusting matching degree of forming parameters of coal ash autoclaved standard brick
CN100425561C (en) Fluid-bed boiler fly ash autoclaved brick and preparation method thereof
CN101575900A (en) Process for producing thistle boards from phosphogypsum and natural gypsum
CN102627435B (en) Paper pulp waste residue steam-pressing brick and preparation method thereof
CN209320013U (en) A kind of concrete mixing station building castoff recycled aggregate feeding system
CN103396084B (en) Recycling method for broken autoclaved fly ash bricks
CN101468492A (en) Fly ash steam-pressing brisk production chain
CN103482848A (en) Pelletizing production process for glass batch mixture
CN105669104B (en) It is a kind of to utilize the non-burning brick and preparation method thereof of ceramic rubbing down waste material production
CN106116409A (en) A kind of waste residue that casts reclaims the non-burning brick of preparation
CN104892018A (en) Preparation method of autoclaved fly ash perforated brick
CN102190427A (en) Method for remanufacturing lightweight glass bricks from recovered glass
CN102515467A (en) Silicon raw material tailing granulated material, and preparation method and application thereof
CN104609835A (en) Production method for manufacturing hollow ceramic plate by utilizing polished ceramic waste residues
CN201856292U (en) Ceramic brick raw material refining system resisting acid, high temperature and high pressure
CN103496860A (en) Preparation technology for smelting waste slag sand
CN104496486B (en) The production system of Imitation Rock Porcelain Tiles
CN102491724A (en) Iron ore slag sintered brick and a preparation technology of same
CN104086105B (en) Carbide slag cement clinker production line technique
Liu et al. Research Progress on Production Technology and Equipment of Fired Perforated Brick
CN105150373A (en) Brick making technology of sand separated from solid waste

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model