CN1223242A - Method for producing silicon fertilizer by using silicate cement - Google Patents
Method for producing silicon fertilizer by using silicate cement Download PDFInfo
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- CN1223242A CN1223242A CN 98121708 CN98121708A CN1223242A CN 1223242 A CN1223242 A CN 1223242A CN 98121708 CN98121708 CN 98121708 CN 98121708 A CN98121708 A CN 98121708A CN 1223242 A CN1223242 A CN 1223242A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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Abstract
The production method of silicon-containing fertilizer by using portland cement production process is characterized by that it uses the cement production process of small rotary kiln and vertical kiln to produce silicon-containing fertilizer, has no need of changing existent cement production line, and uses the calcareous raw material and argillaceous raw material as main raw materials and uses coal as fuel to produce the invented fertilizer. Said invented silicon-containing fertilizer is applicable to several crops, such as rice, wheat, peanut, cane, vegetables and fruits, etc.. If 50-125 kg of said silicon-containing fertilizer is applied per mu, and the yield can be increased by 8-35%.
Description
The invention belongs to method for making silicon fertilizer.
Method for making silicon fertilizer of the prior art mainly contains two kinds, and a kind of is to be main raw material with the granulated blast-furnace slag, the common grinding of admixture suitable additives and making; Another kind is that the yellow phosphorus furnace slag with the phosphatization industrial discharge is a main raw material, and the admixture suitable additives is formulated.Produce siliceous fertilizer with these two kinds of methods, all be subjected to the restriction of resources supplIes.China is large agricultural country, and is vast in territory, and vast rural area does not have these resources.Transport to outlying market, rural area with the siliceous fertilizer of aforesaid method production, freight charges costliness often, price soars, and the peasant is difficult to bear.Moreover China's phosphorus slag amount is few, and granulated blast-furnace slag is again the important source material of Cement industry and concrete and goods thereof, and the annual 8000 ten thousand tons of slags in the whole nation are the needs of not enough these industries still.And China lacks several hundred million mu on tripoli ground, and annual siliceous fertilizer demand is more than 4,000 ten thousand tons.
The present invention is directed to the limitation that existing siliceous fertilizer production technology exists, adopt the production technique and the main material production siliceous fertilizer of silicate cement.
The present invention will be described below in conjunction with accompanying drawing 1.
Fig. 1. produce the process flow sheet of siliceous fertilizer method with the silicate cement production technique.
The raw material that the present invention produces siliceous fertilizer mainly is calcium carbonate (comprising limestone, marl, chalk, shell, carbide slag etc.) and clayey (comprising loess, clay, shale, mud stone, siltstone, river silt etc.) raw material; Fuel is anthracite (shaft kiln) or bituminous coal (rotary kiln). When adopting the Vertical Kiln for Cement Production explained hereafter, the raw material proportioning is by mass percentage:
Calcareous raw material 45～65%
Clayey raw material 25～45%
When hard coal 6～10% adopted the rotary kiln cement production technique to produce, proportioning raw materials was by mass percentage:
Calcareous raw material 50～70%
When clayey raw material 30～50% adopted the rotary kiln cement production technique to produce, fuel sprayed into rotary kiln from the coal powder injection device, injecting coal quantity so that the maintenance of kiln temperature be advisable for 1200～1350 ℃.The siliceous fertilizer production technique remains manufacture of cement " two mills one burn " technology, promptly confected materials becomes powder (fineness requirement: 80 μ m square hole sieves tail over and are no more than 20%) with the grinding machine grinding in proportion, and the chamotte powder that burns till in rotary kiln or shaft kiln is worn into powder (fineness requirement: 160 μ m square hole sieves tail over and are no more than 5%) and promptly made siliceous fertilizer then.Can mix or not mix supplementary additive during the raw material grinding, its volume is 100 with raw mix, mixes 0～15% outward.Can mix or not mix supplementary additive when the finished product grinding, its volume is 100 with the grog that burns till, and mixes 0～5% outward.The supplementary additive of mixing when raw material grinding and finished product grinding comprises: (1) contains zinc chemical product; (2) contain phosphorus chemical product; (3) contain potassium raw material or Chemicals; (4) boracic Chemicals.Supplementary additive can singly be mixed, but also two or more is mixed again.The main chemical constitution of siliceous fertilizer that the inventive method is produced is:
CaO????30～50％??ZnO???0～5％
SiO
2??28～48％??SO
3??0～5％
Al
2O
31～12％???P
2O
50～8％
Fe
2O
30～8％????K
2O??0～5％
MgO????0.5～15％?B
2O
30～2％
The proportion scheme that siliceous fertilizer is produced and the difference of manufacture of cement, at first producing siliceous fertilizer can not need ferro-controlling raw material: secondly in the chemical constitution of siliceous fertilizer, CaO content is lower than cement, and SiO
2Than cement height, the mineral C of the main performance hydraulicity in the mineral composition non-cement of siliceous fertilizer
3S and C
3A, so the hydraulicity of siliceous fertilizer is very low or do not have a hydraulicity; In addition, 1200～1350 ℃ of the calcining temperatures of siliceous fertilizer, than low 250～100 ℃ of cement, so the production energy consumption of siliceous fertilizer is than cement low 30～40%.
The siliceous fertilizer that the inventive method is produced mainly replenishes the element that plants such as Si, Ca need, its fertilizer efficiency is identical with the siliceous fertilizer that prior art is produced, be applicable to multiple kinds of crops such as paddy rice, wheat, peanut, sugarcane, vegetables, fruit, execute siliceous fertilizer 50～125Kg for every mu and can increase production 8～35%.
The siliceous fertilizer production technique is identical with manufacture of cement as mentioned above, and existing cement production enterprise need not be transformed basically can realize the siliceous fertilizer of changing the line of production.It is extensive to produce the siliceous fertilizer raw material sources with the inventive method, and various places have.Manufacturing enterprise is also near the rural market.The little cement production enterprise that is distributed in the vast rural area of China has family more than 6000.For various reasons, many little cement production enterprises are ineffective, unstable product quality, and resource and energy consumption are big, and environmental pollution is quite serious.According to the developing policy that country " limits, eliminates, transforms, improves " local cement, the following shaft kiln of φ 2.2m (containing φ 2.2m), the following all kinds of rotary kilns of φ 2.4m (not containing φ 2.4m) will be eliminated before and after 2000.These conversion to the production of other goods siliceous fertilizers both can solve China's siliceous fertilizer production, supply and location problem, to the stability and development agricultural, increase farmers' income favourablely, can solve the livelihoods of these cement production enterprises again.The energy of the inventive method production siliceous fertilizer and resource consumption, waste gas (CO
2, NO
X, SO
3Deng) discharge and lack than manufacture of cement; Because firing temperature is low, to produce fuel and can use low calorific value coal, raw material can be used the high Wingdale of MgO content.
Embodiment 1:
Select somewhere, Guangxi raw material for use, its chemical ingredients (wt%) is:
| Material name | Loss on ignition | SiO 2 | ?Al 2O 3 | ?Fe 2O 3 | ?CaO | ?MgO |
| The Wingdale clay | 42.52 ?6.06 | ?0.70 ?66.83 | ?0.21 ?12.30 | ?0.28 ?6.60 | ?54.75 ?1.69 | ?0.72 ?1.10 |
In Wingdale: clay=70: 30 ratio preparation compounds, with ball mill compound grinding to 80 μ m square hole sieve is tailed over=15%, powder in 1300～1330 ℃ of rotary kilns, calcine grog, with the grog that burns till is 100, mix phosphorus chemical product 11% outward, boronation chemical product 2%, jointly in ball mill grinding to 160 μ m square hole sieve to tail over be 5%, promptly make siliceous fertilizer.Embodiment 2:
Used Wingdale, raw clay are formed with embodiment 1.In Wingdale: clay: coal=62.5: 30: 7.5 ratio batchings, outer again 1% zinc chemical product of mixing, then with ball mill compound grinding to 80 μ m square hole sieve is tailed over=16%, powder adds the water balling-up and calcines in shaft kiln, it is 4% that the grog that burns till grinding to 160 μ m square hole sieve in ball mill tails over, and promptly makes siliceous fertilizer.Embodiment 3:
Used Wingdale, raw clay are formed with embodiment 1.In Wingdale: clay: coal=60: 33.0: 7.0 ratio preparation compounds, then with ball mill compound grinding to 80 μ m square hole sieve is tailed over=16%, powder add the water balling-up and in shaft kiln, calcine grog, with the grog that burns till is 100, mix outward 3% contain the potassium Chemicals jointly in ball mill grinding to 160 μ m square hole sieve to tail over be 3%, promptly make siliceous fertilizer.Embodiment 4:
Used Wingdale, raw clay are formed with embodiment 1.In Wingdale: clay: coal=57: 36.0: 7.0 ratio preparation compounds, then with ball mill grinding to 80 μ m square hole sieve tail over=16%, powder adds the water balling-up and calcines in shaft kiln, and it is 4% that the grog that burns till grinding to 160 μ m square hole sieve in ball mill tails over, and promptly makes siliceous fertilizer.
Above siliceous fertilizer is carried out field test as base manure, and experimental plot siliceous fertilizer amount of application: paddy rice mu is executed 80Kg; Sugarcane mu is executed 100Kg; Other farm crop mus are executed 50Kg.The increasing crop yield effect sees the following form after using siliceous fertilizer.
| Farm crop | Contrast field (Kg/ mu) | Execute siliceous fertilizer field (Kg/ mu) | Volume increase (Kg/ mu) | Amplification (%) |
| Peanut paddy rice tomato balsam pear sugarcane | ????139.0 ????469.0 ????2740.0 ????1893.5 ????8560.0 | ?169.5～197.0 ?502.0～539.5 ?2936.5～3021.5 ?1961.5～2105.0 ?9330.6～11060.0 | ?30.5～58.0 ?33.0～70.5 ?196.5～281.5 ?68.0～212.0 ?770.0～2500.0 | ?21.9～41.7 ?7.0～15.0 ?7.2～10.3 ?3.6～11.2 ?9.0～29.0 |
Claims (3)
1. a method for making silicon fertilizer is characterized in that siliceous fertilizer adopts the production technique of silicate cement to produce; Producing used main raw material is that calcareous raw material (comprises limestone, muddy limestone, chalk, shell, carbide slag etc.) and clayey raw material (comprise loess, clay, shale, mud stone, siltstone, river silt etc.), fuel is coal, confected materials becomes powder (fineness requirement: 80 μ m square hole sieves tail over and are no more than 20%) with the grinding machine grinding in proportion, calcines in rotary kiln or shaft kiln then, and the chamotte powder that burns till is worn into powder (fineness requirement: 160 μ m square hole sieves tail over and are no more than 5%) and promptly made siliceous fertilizer; Wherein: (1) adopts the Vertical Kiln for Cement Production explained hereafter, and proportioning raw materials is by mass percentage:
Calcareous raw material 45～65%
Clayey raw material 25～45%
Hard coal 6～10%
(2) adopt the rotary kiln cement production technique to produce, proportioning raw materials is by mass percentage:
Calcareous raw material 50～70%
When clayey raw material 30～50% adopted the rotary kiln cement production technique to produce, coal sprayed into rotary kiln from the coal powder injection device, injecting coal quantity so that the maintenance of kiln temperature be advisable for 1200～1350 ℃.
2. by the described method for making silicon fertilizer of claim 1, it is characterized in that the raw material grinding and (or) mix supplementary additive during the finished product grinding, volume is 100 with raw mix (or the grog that burns till), mixes 0～15% supplementary additive outward.
3. by claim 1 or 2 described method for making silicon fertilizer, it is characterized in that the raw material grinding and (or) supplementary additive of admixture comprises during the finished product grinding: (1) contains zinc chemical product, (2) contain phosphorus chemical product, (3) contain potassium raw material or Chemicals, (4) boracic Chemicals, supplementary additive can singly be mixed, but also two or more is mixed again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98121708 CN1223242A (en) | 1998-12-14 | 1998-12-14 | Method for producing silicon fertilizer by using silicate cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98121708 CN1223242A (en) | 1998-12-14 | 1998-12-14 | Method for producing silicon fertilizer by using silicate cement |
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| Publication Number | Publication Date |
|---|---|
| CN1223242A true CN1223242A (en) | 1999-07-21 |
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ID=5227264
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|---|---|---|---|
| CN 98121708 Pending CN1223242A (en) | 1998-12-14 | 1998-12-14 | Method for producing silicon fertilizer by using silicate cement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336613A (en) * | 2010-07-26 | 2012-02-01 | 蒋俊明 | Ecological fertilizer special for bamboos |
| CN101370754B (en) * | 2005-12-29 | 2013-04-24 | 巴西石油公司 | Process for obtaining a fertilizer with sustained release of phosphorus |
| CN104341173A (en) * | 2013-08-08 | 2015-02-11 | 苑大海 | Production method for silicon fertilizer |
| CN105940840A (en) * | 2016-04-28 | 2016-09-21 | 刘庆斌 | Application of ordinary portland cement as fertilizer for increasing high yield of peanut |
-
1998
- 1998-12-14 CN CN 98121708 patent/CN1223242A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370754B (en) * | 2005-12-29 | 2013-04-24 | 巴西石油公司 | Process for obtaining a fertilizer with sustained release of phosphorus |
| CN102336613A (en) * | 2010-07-26 | 2012-02-01 | 蒋俊明 | Ecological fertilizer special for bamboos |
| CN104341173A (en) * | 2013-08-08 | 2015-02-11 | 苑大海 | Production method for silicon fertilizer |
| CN105940840A (en) * | 2016-04-28 | 2016-09-21 | 刘庆斌 | Application of ordinary portland cement as fertilizer for increasing high yield of peanut |
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