CN105777383A - Technology for producing flower fertilizer by means of metallurgical slag - Google Patents
Technology for producing flower fertilizer by means of metallurgical slag Download PDFInfo
- Publication number
- CN105777383A CN105777383A CN201610233548.XA CN201610233548A CN105777383A CN 105777383 A CN105777383 A CN 105777383A CN 201610233548 A CN201610233548 A CN 201610233548A CN 105777383 A CN105777383 A CN 105777383A
- Authority
- CN
- China
- Prior art keywords
- slag
- weight
- fertilizer
- mixing
- added
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D3/00—Calcareous fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a technology for producing a flower fertilizer by means of metallurgical slag.The method comprises the steps that 50% by weight of iron-smelting slag and 10% by weight of steel slag are subjected to magnetic separation to remove heavy metal compounds; the iron-smelting slag and steel slag are milled through a ball mill till the particle size is 200 meshes, and then the materials are added into a disc pelletizer or a drum pelletizer; 30% by weight of dried domestic sludge is added, mixing and sterilizing are conducted, after mixing and sterilizing are conducted for 8 h, 10% by weight of calcium bentonite is added into the mixture, the materials are mixed and then packed, and the packed materials serve as a chemical fertilizer or nutrient soil of flowers and vegetables, wherein the moisture rate of the domestic sludge is smaller than 3%.
Description
Technical field
The present invention relates to a kind of technique utilizing metallurgical slag to produce flower fertilizer.
Background technology
The flowers of family and the cultivation of vegetable, generally use Nutrition Soil and peat soil, composite soil etc., after using a period of time, flowers and vegetable growth absorb all kinds of mineral elements in soil matrix, for the protein synthesis in growing process, the conversion etc. of photosynthesis of plant, become the organic matter of plant so that the fertilizer in the middle of soil presents the situation that declines year by year, so family potted plant plants and vegetables and flowers, need soil removal and replacement every year or use chemical fertilizer, it is ensured that the normal growth of potted plant.
By consulting literatures: the Lu Jiwen of (1) Southwest University was at the Master's thesis of 2008: have in the middle of " urban sewage sludge compost applied research in flower culture " that " substrate (Li Yanxia; 1995) of container nursery abroad all adopts peat soil, price and freight charges all higher.Whole world peat soil resource-constrained, the short time cannot update.Bog peat can fix the CO in air2, a large amount of exploitation peat soils can make Atmospheric CO2Concentration raises, and makes global warming, so application is restricted.The multiplex forest humus of China replaces, but it destroys forest zone topsoil, is easily caused soil erosion, and collection and freight are also higher." content statement.(2) Gao Ding at Chinese Academy of Sciences's geographical science the Study on Resources institute's environment remediation center et al., 6th Asian-Pacific area infrastructure forum at ministerial level announces be entitled as in the middle of " urban sewage sludge compost be used for flowers base Quality Research " paper to have " fertile soil conventional in landscape flower is cultivated; increase (Zhang Zengqiang etc.; 2000) because gathering limited and cost of transportation; make consumption gradually decrease; and urban sewage sludge compost has the advantages that nutrient is abundant and source supply is sufficient; be therefore subject in the recent period Producer and researcher common concern (Li Yanxia etc., 2002；Zhao Li etc., 2002).Mud carries out Land_use change after composting and is possible not only to supply macro-and microelements nutrient (Chen Tongbin etc. into crop, 2002a), soil physico-chemical property after being manured into soil, can also be improved, as reduced the soil weight, improve permeability and ventilation rate, alleviate the degree etc. that hardens." content statement.
Converter slag is a kind of basicity alkali aggregate more than 2.5, and being also referred to as is the Portland clinker of burning；Slow cooling ironmaking slag in iron-smelting process process, is also a kind of weakly alkaline silicate sturcture.According to " People's Republic of China (PRC) agricultural industry criteria NY/T797-2004 " it can be seen that produce, with steel slag, the prevailing technology materials that siliceous fertilizer is domestic and international fertilizer enterprises.
The remaining master thesis seeing prunus mume (sieb.) sieb.et zucc. of By consulting literatures (1) Zhejiang University: have in the middle of " flyash is to the passivation of Heavy Metals in Sludge and the research of application in afforestation thereof " " in sewage, pathogen is of a great variety, and with the local health status of crowd, age composition, local pathogen epidemiology and nosetiology state, sewage the factor such as physical state closely related.In municipal sewage, pathogen is mainly intestinal bacteria, helminthism worm and virus three major types type, and wherein especially with Salmonella, ascarid, cestode, enterovirus is the most common.Various pathogens viability in the environment depends on pathogen itself, and also closely related with factors such as the illumination of environment, temperature, humidity, pH value, the only survival having several hours, what have then can live even several years several months." content statement；(2) in the middle of state key books " slag processing and the comprehensive utilization " book that Yu Haiming, Wang Qiang and 2015 year December are published in metallurgical industry publishing house, it is indicated that steel-making slag powder and slag powders are the Binder Materials that a kind of reaction is slower.
Summary of the invention
It is an object of the invention to provide a kind of technique utilizing metallurgical slag to produce flower fertilizer, domestic sludge use alkalescence slag and ironmaking slag mixing manufacture flower fertilizer, can not only while sterilizing, chelating municipal sludge, realize intersection and the fusion of subject between industry, and the flower fertilizer fertilizer efficiency that produces is long, fertility foot, environment friendly and pollution-free.
The object of the present invention is achieved like this, a kind of technique utilizing metallurgical slag to produce flower fertilizer, first by percentage by weight respectively 50% ironmaking slag and 10% slag, carry out magnetic separation and remove heavy metal compound, using ball mill to be milled down to granularity after mixing is 200 orders, it is then added in disc balling machine or cylinder pelletizer, adding percentage by weight is that 30% dried domestic sludge mixes, sterilization, described domestic sludge moisture content is less than 3%, after mixing sterilization 8 hours, the calcium-base bentonite mixing that percentage by weight is 10% is added in the middle of compound, pack after having mixed, chemical fertilizer or Nutrition Soil as flowers or vegetables use.
The research of inventor finds, slag is a kind of porous material, if vessel slag is milled down to 200 orders, the material of the silicate phase in free calcium oxide in slag and free magnesium and slag is provided with the basic crystal feature of hydration reaction, its hydration reaction is slower than normal portland cement, but the pH value in hydration reaction process raises so that it is become and can eliminate a kind of raw material of various pathogenic bacterias in the middle of municipal sludge.Same ironmaking slag is also a kind of portland cement, is milled down to 200 orders, so as to reactivity possesses, but the speed of reaction is slower.Both materials belong to alkaline matter, it is possible to eliminate all kinds of pathogenic bacterias in municipal sludge.Bentonite (Bentonite) has special bloating tendency, caking property, adsorptivity, catalytic, thixotropy, suspension and cation commutativity.Therefore bentonite is used by inventor as host matrix.First levigate steel slag is mixed with dried municipal sludge (moisture content is less than 3%), utilizes steel slag to carry out suppressing and controlling for the pathogenic bacteria in municipal sludge and pathogen, then mix with bentonite, use as flowers or vegetables fertilizer.
The innovative point of the present invention is based on 3 following points:
1) utilize in the middle of slag rich in phosphate, rich in feature higher for sulfate PH in the middle of ironmaking slag, while municipal sludge is sterilized, increase the phosphorus sulfur content in the middle of fertilizer so that fertilizer has the function of phosphate fertilizer and sulfur fertilizer.
2) bentonitic bloating tendency, caking property, adsorptivity, catalytic, thixotropy, suspension and cation commutativity are utilized, after mixing with steel slag and municipal sludge, fertilizer as flowers or vegetables, it is also possible to the Nutrition Soil as flowers or vegetables uses, after watering, soil can imbibition, being easy to the control operation of irrigation amount, the water-retaining property of potted plant strengthens, and the nutrient of potted plant soil is under bentonitic effect simultaneously, unsuitable leaching loss, it is prevented that the loss of beneficial element.
3) in steel slag rich in silicon, manganese, calcium, the element such as magnesium, steel slag is milled down to 200 orders, various elements therein are solubility in citric acid element mostly, and its fertilizer efficiency was up to 1 year, it is possible to reduce the fertilizer application frequency of flowers or vegetables.
The beneficial effect of the present invention: domestic sludge uses alkalescence slag and ironmaking slag mixing, technical process increases the pH value of mud environment, while sterilizing, chelating municipal sludge, achieve intersection and the fusion of subject between industry, be the pattern of a kind of green circulation economy.It addition, the present invention by the nutrient in the middle of steel slag and municipal sludge, can also use bentonite to carry out fertilizer conservation, and can be easy to pot flowers vegetable water water management.
Detailed description of the invention
Embodiment:
A kind of technique utilizing metallurgical slag to produce flower fertilizer, first by percentage by weight respectively 50% ironmaking slag and 10% slag, carry out magnetic separation and remove heavy metal compound, using ball mill to be milled down to granularity after mixing is 200 orders, it is then added in disc balling machine or cylinder pelletizer, adding percentage by weight is that 30% dried domestic sludge mixes, sterilization, described domestic sludge moisture content is less than 3%, after mixing sterilization 8 hours, the calcium-base bentonite mixing that percentage by weight is 10% is added in the middle of compound, pack after having mixed, chemical fertilizer or Nutrition Soil as flowers or vegetables use.
Claims (1)
1. one kind utilizes the technique that metallurgical slag produces flower fertilizer, it is characterized in that first by percentage by weight respectively 50% ironmaking slag and 10% slag, carry out magnetic separation and remove heavy metal compound, using ball mill to be milled down to granularity after mixing is 200 orders, it is then added in disc balling machine or cylinder pelletizer, adding percentage by weight is that 30% dried domestic sludge mixes, sterilization, described domestic sludge moisture content is less than 3%, after mixing sterilization 8 hours, the calcium-base bentonite mixing that percentage by weight is 10% is added in the middle of compound, pack after having mixed, chemical fertilizer or Nutrition Soil as flowers or vegetables use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233548.XA CN105777383A (en) | 2016-04-15 | 2016-04-15 | Technology for producing flower fertilizer by means of metallurgical slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233548.XA CN105777383A (en) | 2016-04-15 | 2016-04-15 | Technology for producing flower fertilizer by means of metallurgical slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105777383A true CN105777383A (en) | 2016-07-20 |
Family
ID=56396502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610233548.XA Pending CN105777383A (en) | 2016-04-15 | 2016-04-15 | Technology for producing flower fertilizer by means of metallurgical slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105777383A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333434A (en) * | 2020-04-24 | 2020-06-26 | 北京光明橡塑制品厂 | Method for preparing fertilizer from metallurgical steel slag material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836576A (en) * | 2010-05-13 | 2010-09-22 | 济南大学 | Method for manufacturing compost by using biological sludge and steel slag |
| CN102133576A (en) * | 2010-01-22 | 2011-07-27 | 株式会社关东管财 | Eco-resource slag effective utilization system |
| CN104987231A (en) * | 2015-07-27 | 2015-10-21 | 蒋文兰 | Production method for sludge carbonized nutrient soil |
-
2016
- 2016-04-15 CN CN201610233548.XA patent/CN105777383A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133576A (en) * | 2010-01-22 | 2011-07-27 | 株式会社关东管财 | Eco-resource slag effective utilization system |
| CN101836576A (en) * | 2010-05-13 | 2010-09-22 | 济南大学 | Method for manufacturing compost by using biological sludge and steel slag |
| CN104987231A (en) * | 2015-07-27 | 2015-10-21 | 蒋文兰 | Production method for sludge carbonized nutrient soil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333434A (en) * | 2020-04-24 | 2020-06-26 | 北京光明橡塑制品厂 | Method for preparing fertilizer from metallurgical steel slag material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104119185B (en) | The production method of bentonite compression Nutrition Soil | |
| CN104119169B (en) | The production method of medical stone mine tailing compression Nutrition Soil | |
| CN104119172B (en) | The production method of Kaolin Tailings compression Nutrition Soil | |
| CN104109038B (en) | The production method of building waste compression Nutrition Soil | |
| CN104119156B (en) | The production method of diatomite compression Nutrition Soil | |
| CN104119182B (en) | The production method of serpentine tailing compression Nutrition Soil | |
| CN104119164B (en) | The production method of zeolite compression Nutrition Soil | |
| CN104119177B (en) | The production method of shale compression Nutrition Soil | |
| CN104119188B (en) | The production method of loess compression Nutrition Soil | |
| CN104119165B (en) | The production method of pyrophillite mine tailing compression Nutrition Soil | |
| CN104119171B (en) | The production method of graphite tailing compression Nutrition Soil | |
| CN104130073B (en) | The production method of phosphogypsum compression Nutrition Soil | |
| CN104119194B (en) | The production method of calcium carbonate slag compression Nutrition Soil | |
| CN104140336A (en) | Method for producing phosphorus-potassium compounded type tailing compressed nutrient soil | |
| CN104119180B (en) | The production method of illite compression Nutrition Soil | |
| CN104109035B (en) | The production method of diatomite mine tailing compression Nutrition Soil | |
| CN104109037B (en) | The production method of basalt mine tailing compression Nutrition Soil | |
| CN107739619A (en) | Diatomite mine tailing saline land greening tree planting soil conditioner | |
| CN104119187A (en) | Production method of sepiolite tailing compressed nutrient soil | |
| CN105777383A (en) | Technology for producing flower fertilizer by means of metallurgical slag | |
| CN104119192B (en) | The production method of Rock Phosphate (72Min BPL) mine tailing compression Nutrition Soil | |
| Sarkar et al. | Use of soil amendments in an integrated framework for adaptive resource management in agriculture and forestry | |
| CN107721683A (en) | House refuse saline land greening tree planting soil conditioner | |
| CN104109034B (en) | The production method of magnesite tailings compression Nutrition Soil | |
| CN104140335A (en) | Method for producing perlite compressed nutrient soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |