CN1033383C - Production of powdery solid additive by use of molasses-spirit lees - Google Patents
Production of powdery solid additive by use of molasses-spirit lees Download PDFInfo
- Publication number
- CN1033383C CN1033383C CN 92104636 CN92104636A CN1033383C CN 1033383 C CN1033383 C CN 1033383C CN 92104636 CN92104636 CN 92104636 CN 92104636 A CN92104636 A CN 92104636A CN 1033383 C CN1033383 C CN 1033383C
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- China
- Prior art keywords
- lime
- molasses
- powdery solid
- solid additive
- milk
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/10—Carbohydrates or derivatives thereof
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention provides a method for preparing WST additives, which comprises the steps as follows: adopting the waste molasses alcohol lees discharged from a sugar plant as raw material; concentrating the waste molasses alcohol lees and neutralizing the concentrated waste molasses alcohol lees with Ca(OH)2; spraying and drying the waste molasses alcohol lees with an air current. The method has the advantages of simple and rational technology, prepared WST additives meeting the requirement of the national standard GB 8076-87, convenient transportation, storage and use and change of waste into resource, thereby having obviously economic and social benefits.
Description
The present invention is a kind of production method of concrete admixture, particularly uses molasses-spirit lees to produce (containing vinasse, together following) method of powdery solid additive [abbreviating as: the method (down together) of producing powdery solid additive].
Mix a spot of admixture in concrete, can play diminishing and strengthen, accelerating construction progress improves construction quality, reduces the effect of engineering cost.Current, State Planning Commission, Materials Bureau will use admixture and save one of important measures of the cement and the energy as engineering construction, and therefore, admixture especially water reducer presents the gesture that demand exceeds supply.
The known production that utilizes molasses-spirit lees class admixture is with NaOH, Na
2CO
3Or its compound alkali neutralization, can only produce spissated liquid product, or after neutralization, add the carrier oven dry (one-tenth blocks of solid) that stirs, grind to form the powdery product again.Enriching agent exists transportation, storage, use all inconvenient, adds the carrier pulvis and produces shortcomings such as complexity, cost height, uses NaOH, Na
2CO
3Or its compound alkali makes the PH conditioning agent cost height of neutralization reaction, and technology and labour protection are complicated.At present, utilize molasses-spirit lees, any successful report is not at home and abroad arranged so far as yet from aqueous convection drying powdering solid additive.
Task of the present invention just provides a kind of method of producing powdery solid additive.It is to utilize the product molasses-spirit lees of paying in sugar refinery to be raw material, through concentrating, with Ca (OH)
2(lime or milk of lime) by the air-stream spraying drying, directly makes powdery solid additive after mixing neutralization, solved can not the direct production powdery solid additive with molasses-spirit lees a difficult problem, for the disposal of waste gas, water and industrial residue in sugar refinery, make a silk purse out of a sow's ear, touch out a cover scientific approach and a shortcut; The transportation of molasses-spirit lees class I liquid I admixture, storage, awkward shortcoming have been overcome.
The present invention is finished by following production technique:
One, the production technique of powdery solid additive:
1. be raw material with molasses-spirit lees (be sugar refinery molasses, pay product behind the alcohol through fermented extracted), vacuum-evaporation is concentrated into finite concentration through vaporizer, adds Ca (OH)
2(lime or milk of lime) carries out neutralization reaction, behind accent pH value to 7～12, directly makes the powdery solid additive product by the moisture eliminator spraying drying;
2. its technological process of production is seen Fig. 1, and among Fig. 1: 1. the feed liquid storage is poor, 2. the one-level evaporator bank, 3. secondary evaporimeter group, 4. strainer, 5. neutralization reaction still, 6. underflow pump, 7. material preheater, 8. air filter, 9. airheater, 10. three fluid nozzles, 11. drying towers, 12. air compressor, 13. the primary separator group, 14. second-stage separator groups, 15. vacuum fans.
3. embodiment as shown in Figure 1: the molasses-spirit lees feed liquid of sugar refinery emission concentration about 5～10% is delivered to storage poor 1, then with impeller pump with feed liquid beat to one-level, secondary evaporimeter 2,3 carry out vacuum-evaporation concentrate 40～60% concentrated solution, again concentrated solution is sent neutralization reaction still 5 to add Ca (OH) through filter 4
2(lime or milk of lime) neutralization reaction, in transfer mixing and concentrated solution to requiring pH value, the concentrated solution of pH value will be mixed up, with underflow pump 6, send into three fluid nozzles 10 in the moisture eliminator 11 by material preheater 7, (air is through air filter 8 to utilize pressurized air, well heater 9 and air compressor 12 are to moisture eliminator) concentrated solution is atomized, droplet obtains drying to the heat-transfer medium of moisture eliminator 11 and warm air, dry good particle and off-air enters one together, second- stage separator 13,14, after gas solid separation, get final product the powdery solid additive finished product, surplus waste gas is discharged by vacuum fan 15.
Two, produce the equipment and the processing condition of powdery solid additive;
Molasses-spirit lees concentrate be with four jars of following currents of triple effect outward, heating-type vacuum-evaporator and rubbing board thin-film evaporator be used, earlier after vacuum-evaporator is concentrated into about 40% concentration, be concentrated into about 60% concentration again through the rubbing board thin-film evaporator, get concentrated solution and send to neutralization reaction;
2. concentrated solution is in the reactor 5 that heated and stirred, anti-corrosion function are arranged, with Ca (OH)
2(lime or milk of lime) mixes neutralization, and stirring reaction is regulated pH value, Ca (OH) more than half an hour under 50～95 ℃ of conditions
2The consumption of (lime or milk of lime) reaches 7～12 and exceeds to mix spissated pH value, send the moisture eliminator drying.
3. it is as follows that the concentrated solution that mix neutralization, mixes up pH value utilizes three fluid air flow spray-dryers to carry out the drying process condition:
1., the material preheating temperature is 50～125 ℃;
2., material concentration 15～35Be;
3., dry heat air inlet temperature is 130～300 ℃;
4., moisture eliminator waste gas outflow temperature is 60～120 ℃;
5., feed pressure 0.2～0.8MPa;
6., atmospheric pressure 0.4～0.8MPa of nozzle, secondary atmospheric pressure 0.2～0.8MPa;
7., pressurized air total amount 6-8m
3/ minute;
8., product water ratio≤12%;
In the production process, except that carrying out by above-mentioned technology, the packing of product will notice that damp proof protection against the tide gets final product.
Three, produce characteristic, quality, the advantage of powdery solid additive with the present invention:
1. product performance, according to the GB8076-87 standard, powdery solid additive is the coventional type water reducer, the tawny powdery solid has sugared fragrance, meta-alkalescence, soluble in water, easily the moisture absorption deliquescence lumps (but the deliquescence caking does not influence use) in air, and be heated (more than 110 ℃) easily melt;
2. product homogeneity index: its steady quality is reliable, stores through 2 years and never degenerates, and meets the GB8076-87 standard, and the homogeneity index sees the following form:
| Index name | Solids content (%) | Chloride ion content (%) | Insolubles content (%) | Fineness (%) (0.3mm tails over) | PH | Flowing degree of net paste of cement increases (mm) |
| Indication range | 88～98 | 1～6 | 2～10 | 1～3 | 7～12 | 80～125 |
3. advantage of the present invention:
(1), can be with molasses-spirit lees (containing vinasse) direct production powdery solid additive;
(2), be sugar refinery comprehensive utilization, can turn waste into wealth, enlarge economic and social benefit;
(3), can utilize cheap Ca (OH)
2(lime or milk of lime) makes neutral PH conditioning agent
(4), the powdery solid additive product of producing than liquid additive transportation and easy to use, easy storage, never degenerate;
(5), use powdery solid additive 0.2～0.3% and mix concrete, water-reducing rate 9～11%, enhancing rate 15～30%, slow setting 1-2 hour time of coagulation; Press 1m
3Cement consumption 250kg meter is mixed powdery solid additive 0.2%, can save ash 20～28kg/m
3, 3.1 yuan/m of joint money
3More than (cement is by 200 yuan/ton, and admixture is by 1500 yuan/ton).
Claims (1)
1. method of producing powdery solid additive, it is characterized in that utilizing the molasses-spirit lees (containing vinasse) in sugar refinery is raw material, is concentrated into through triple effect four jars of following current external heating types vacuum-evaporator and the double flash evaporation of rubbing board thin-film evaporator
tThe concentrated solution of 0～60% concentration is with Ca (OH)
2(lime or milk of lime) mixes neutralization, at 50～95 ℃ of stirring reactions more than half an hour, and adjust pH, Ca (OH)
2The consumption of (lime or milk of lime) is 7～12 to transfer concentrated solution pH value, by three fluid air flow spray-dryer dryings, drying conditions is 50～125 ℃ of material preheating temperatures, material concentration 15～35Be, 130～300 ℃ of dry heat air inlet temperature, 60～120 ℃ of moisture eliminator waste gas outflow temperatures, feed pressure 0.2～0.8MPa, atmospheric pressure 0.4～0.8MPa of nozzle, secondary atmospheric pressure 0.2～0.8MPa, pressurized air total amount 6～8m
3/ minute directly make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104636 CN1033383C (en) | 1992-06-15 | 1992-06-15 | Production of powdery solid additive by use of molasses-spirit lees |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104636 CN1033383C (en) | 1992-06-15 | 1992-06-15 | Production of powdery solid additive by use of molasses-spirit lees |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1072912A CN1072912A (en) | 1993-06-09 |
| CN1033383C true CN1033383C (en) | 1996-11-27 |
Family
ID=4940895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92104636 Expired - Fee Related CN1033383C (en) | 1992-06-15 | 1992-06-15 | Production of powdery solid additive by use of molasses-spirit lees |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033383C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6797050B2 (en) * | 2002-07-22 | 2004-09-28 | A.E. Staley Manufacturing Co. | Use of fermentation residues as flow-enhancing agents in cementitious materials |
| CN102020431B (en) * | 2009-09-10 | 2014-09-17 | 路易斯·佩雷斯·巴兰那卡 | Improved method for preparing concrete admixture by using vinasse prepared by distilling sugarcane molasses |
| CN105815565A (en) * | 2016-03-28 | 2016-08-03 | 宋天文 | Sugar factory waste liquid treatment method |
| CN108147732B (en) * | 2016-12-03 | 2020-07-10 | 广东省永固电力科技有限公司 | Composite telegraph pole |
| CN113372571A (en) * | 2021-07-05 | 2021-09-10 | 云南紫辰集团生物科技有限公司 | Production process of potassium fulvate dry powder |
-
1992
- 1992-06-15 CN CN 92104636 patent/CN1033383C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1072912A (en) | 1993-06-09 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |