CN106190160A - A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner - Google Patents
A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner Download PDFInfo
- Publication number
- CN106190160A CN106190160A CN201610619174.5A CN201610619174A CN106190160A CN 106190160 A CN106190160 A CN 106190160A CN 201610619174 A CN201610619174 A CN 201610619174A CN 106190160 A CN106190160 A CN 106190160A
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- Prior art keywords
- iron tailings
- biogas residue
- soil conditioner
- method utilizing
- prepare soil
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
-
- 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
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method utilizing iron tailings to prepare soil conditioner, belong to agromelioration technical field.The present invention is with garbage iron tailings, potassium hydroxide, calcium hydroxide, biogas residue and the carboxymethyl cellulose after iron ore beneficiation as raw material, comprise the steps of 1) by iron tailings, potassium hydroxide, calcium hydroxide mixing, calcine in Muffle furnace afterwards, cooling, levigate, obtain activating iron tailings；2) will activate iron tailings, biogas residue, carboxymethyl cellulose mix homogeneously, add water humidification, carries out pelletize afterwards in roller pelletizer, dries and obtains iron tailings soil conditioner.The raw material that the present invention uses easily obtains, and can realize large-scale production, and production cost is low, effectively make use of iron tailings and biogas residue, meet the requirement of recycling economy, Productive statistics is low, there is the biggest industrial value, it is achieved the recycling of resource, be prevented effectively from environmental pollution.
Description
Technical field
The invention belongs to agromelioration technical field, relate to the development of soil conditioner, be specifically related to a kind of utilization
Iron tailings and biogas residue prepare the method for soil conditioner.
Background technology
Iron tailings is the garbage after iron ore beneficiation, according to incompletely statistics, to the end of the year 2013, China's iron ore tailings discharge
Amount is more than 9,000,000,000 tons.If it is the most sufficiently developed, do not only result in the substantial amounts of wasting of resources, and mine tailing
Heap dam, may cause the numerous harm of groundwater resources, air etc..Country " 12 " period is by the innoxious place of iron tailings
Reason is as the most important thing.
Iron tailings chemical composition mainly has SiO2, Al2O3、FeO3, CaO, MgO etc., possibly together with other trace element a small amount of.
Wherein SiO2, CaO, MgO etc. are the necessary moderate-elements of plant, wherein possibly together with some other trace element, if entered it
Row modified active processes, and can be described as a kind of potential soil conditioner raw material.
Along with the development of green energy resource biogas, the fermentation byproduct biogas slurry produced therewith and the process problem of biogas residue are also
Increasingly cause the attention of people, biogas residue its be mainly composed of the cellulose, simultaneously can not being decomposed by the microorganisms at sweat
It is also enriched in not being decomposed by the microorganisms organic matter, humus, several amino acids and enzyme etc. completely, can be to the growth of crop and increasing
Product plays good facilitation.
Summary of the invention
In order to fully use iron tailings and biogas residue, the present invention provides one to utilize iron tailings and biogas residue to prepare soil conditioner
Method, the present invention use raw material easily obtain, can be mass-produced and low cost, effectively make use of iron tailings and natural pond
Slag, meets the requirement of recycling economy, and Productive statistics is low, has the biggest industrial value, can be prevented effectively from environmental pollution.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner, comprises the following steps:
(1) by iron tailings, potassium hydroxide, calcium hydroxide mixing, calcine in Muffle furnace afterwards, cooling, levigate, obtain activating ferrum
Mine tailing；
(2) will activate iron tailings, biogas residue, carboxymethyl cellulose mix homogeneously, add water humidification, carries out afterwards in roller pelletizer
Pelletize, dries and obtains iron tailings soil conditioner.
Preferably, in parts by weight, the amount that in step (1), each component is added is: iron tailings 40 ~ 70 parts, hydroxide
15 ~ 35 parts of potassium, calcium hydroxide 15 ~ 25 parts, during calcining, the temperature in Muffle furnace is 200 ~ 400 DEG C, and calcination time is 3 ~ 5 hours.
In this step, potassium hydroxide and calcium hydroxide are insoluble in order to make in iron tailings with iron tailings high-temperature calcination in Muffle furnace
Silicon dioxide etc. react, and generate water solublity or citric soluble silicate.Potassium hydroxide and the addition of calcium hydroxide simultaneously, improves
The elements such as K and Ca useful to plant growing and volume increase in the soil conditioner of preparation, the addition of calcium hydroxide simultaneously, can save
Save the addition of potassium hydroxide, reduce corresponding cost of material.
Preferably, in parts by weight, the matter that in step (2), activation iron tailings, biogas residue and carboxymethyl cellulose add
Amount ratio is (70 ~ 90): (10 ~ 20): (2 ~ 8).This step useful improves the humic acid of soil, enzyme containing a large amount of in biogas residue
With probiotic bacteria etc., it is a kind of loose porous material simultaneously, is of value to and improves soil environment, keeps soil from packing together.It addition, by
In the addition of biogas residue, can make last pelletize difficulty, carboxymethyl cellulose is the viscosifier of a kind of natural degradable, and its addition can
It is effectively improved the pelletize rate of final product.
Preferably, described biogas residue granularity is less than 60 mesh.Experiment shows, biogas residue granularity is the thinnest, the pelletize rate of final product
The highest, but granularity is the thinnest, can cause pulverizing cost and significantly increase, and experimental result shows, when biogas residue granularity is less than 60 mesh, can have
Well balling ratio.
Preferably, in step (2) intermediate roll comminutor after pelletize, granularity is 5 ~ 10mm, and drying temperature is 120 DEG C.Product
Granularity be 5 ~ 10mm, be first identical with particle diameters such as existing common fertilizer, integrate with market；Execute next to that user friendly
With.
The invention have the advantage that preparation method of the present invention is convenient, raw material sources are extensive, and production cost is low, applied range,
There is the biggest industrial value, meet the requirement of recycling economy, can be prevented effectively from environmental pollution, and to the growth of plant and increasing
Product has significant effect.
Detailed description of the invention
The present invention is further illustrated below:
Embodiment 1:
(1) by 60kg iron tailings, 25kg potassium hydroxide, the mixing of 15kg calcium hydroxide, calcine in Muffle furnace afterwards, calcining heat
It is 300 DEG C, cooling, use ball mill levigate, obtain activating iron tailings；
(2) will activate iron tailings 80kg, biogas residue 15kg, carboxymethyl cellulose 5kg mix homogeneously, add water humidification, afterwards at cylinder
Carrying out pelletize in comminutor, the granularity of pelletize is 5 ~ 10mm, uses 120 DEG C of drying to obtain iron tailings soil conditioner.
Temporary without clear and definite standard for soil conditioner at present, according to the experience of current those skilled in the art, soil is adjusted
The standard of reason agent and related fertilizer is compared.Applicant by preparation soil conditioner according to People's Republic of China's chemical industry row
Industry standard HG 2557-94 calcium magnesium phosphate standard corresponding detection method is measured.Soil conditioner prepared by the present embodiment, has
Effect silicone content is 22.32%, K2O is 6.2%, and CaO is 15.32%, organic 13.32%, pH=10.3, is suitable for improvement acid ground.
Embodiment 2:
(1) by 50kg iron tailings, 20kg potassium hydroxide, the mixing of 20kg calcium hydroxide, calcine in Muffle furnace afterwards, calcining heat
It is 250 DEG C, cooling, use ball mill levigate, obtain activating iron tailings；
(2) will activate iron tailings 70kg, biogas residue 10kg, carboxymethyl cellulose 3kg mix homogeneously, add water humidification, afterwards at cylinder
Carrying out pelletize in comminutor, the granularity of pelletize is 5 ~ 10mm, uses 120 DEG C of drying to obtain iron tailings soil conditioner.
The soil conditioner of preparation is according to People's Republic of China's chemical industry standard HG 2557-94 calcium magnesium phosphate standard
Corresponding detection method is measured.The soil conditioner of the present embodiment gained, available silicon content is 20.30%, K2O is 4.3%, and CaO is
18.32%, organic 13.02%, pH=9.4, it is suitable for improvement acid ground.
Embodiment 3:
(1) by 70kg iron tailings, 35kg potassium hydroxide, the mixing of 25kg calcium hydroxide, calcine in Muffle furnace afterwards, calcining heat
It is 400 DEG C, cooling, use ball mill levigate, obtain activating iron tailings；
(2) will activate iron tailings 90kg, biogas residue 20kg, carboxymethyl cellulose 7kg mix homogeneously, add water humidification, afterwards at cylinder
Carrying out pelletize in comminutor, the granularity of pelletize is 5 ~ 10mm, uses 120 DEG C of drying to obtain iron tailings soil conditioner.
The soil conditioner of preparation is according to People's Republic of China's chemical industry standard HG 2557-94 calcium magnesium phosphate standard
Corresponding detection method is measured.The soil conditioner of the present embodiment gained, available silicon content is 15.5%, K2O is 4.0%, and CaO is
13.32%, organic 13.34%, pH=9.0, it is suitable for improvement acid ground.
Comparative example:
(1) by 60kg iron tailings, 5kg potassium hydroxide, the mixing of 35kg calcium hydroxide, calcine in Muffle furnace afterwards, calcining heat
It is 300 DEG C, cooling, use ball mill levigate, obtain activating iron tailings；
(2) will activate iron tailings 80kg, biogas residue 15kg, carboxymethyl cellulose 5kg mix homogeneously, add water humidification, afterwards at cylinder
Carrying out pelletize in comminutor, the granularity of pelletize is 5 ~ 10mm, uses 120 DEG C of drying to obtain iron tailings soil conditioner.
The soil conditioner of preparation is according to People's Republic of China's chemical industry standard HG 2557-94 calcium magnesium phosphate standard
Corresponding detection method is measured.The soil conditioner of the present embodiment gained, available silicon content is 5.2%, K2O is 0.05%, and CaO is
23.4%, organic 12.65 %, pH=8.4, it is seen that in iron tailings, the element such as silicon, potassium is sufficiently activated, being released to can
The element ratio effectively utilized by plant relatively embodiment 1,2 and 3 is substantially reduced.
It is last that it is noted that obviously above-described embodiment is only for clearly demonstrating example of the present invention, and also
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out change or the variation of other multi-form.Here without also cannot all of embodiment be given exhaustive.And thus drawn
What Shen went out obviously changes or changes among still in protection scope of the present invention.
Claims (6)
1. one kind utilizes the method that iron tailings and biogas residue prepare soil conditioner, it is characterised in that described method includes following step
Rapid:
(1) by iron tailings, potassium hydroxide, calcium hydroxide mixing, calcine in Muffle furnace afterwards, cooling, levigate, obtain activating ferrum
Mine tailing；
(2) will activate iron tailings, biogas residue, carboxymethyl cellulose mix homogeneously, add water humidification, carries out afterwards in roller pelletizer
Pelletize, dries and obtains iron tailings soil conditioner.
A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner, it is characterised in that press
According to parts by weight meter, the amount that in step (1), each component is added is: iron tailings 40 ~ 70 parts, potassium hydroxide 15 ~ 35 parts, calcium hydroxide
15 ~ 25 parts.
A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner, it is characterised in that step
Suddenly in (1), during calcining, the temperature in Muffle furnace is 200 ~ 400 DEG C, and calcination time is 3 ~ 5 hours.
A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner, it is characterised in that press
The mass ratio added according to activation iron tailings, biogas residue and carboxymethyl cellulose in parts by weight meter, step (2) is (70 ~ 90): (10 ~
20): (2 ~ 8).
5. a kind of method utilizing iron tailings and biogas residue to prepare soil conditioner as described in any one of claim 1 or 4, it is special
Levying and be, described biogas residue granularity is less than 60 mesh.
A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner, it is characterised in that step
Suddenly in (2) intermediate roll comminutor after pelletize, granularity is 5 ~ 10mm, and drying temperature is 120 DEG C.
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| CN201610619174.5A CN106190160A (en) | 2016-08-02 | 2016-08-02 | A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner |
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| CN201610619174.5A CN106190160A (en) | 2016-08-02 | 2016-08-02 | A kind of method utilizing iron tailings and biogas residue to prepare soil conditioner |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107912098A (en) * | 2017-11-22 | 2018-04-17 | 鞍钢集团矿业有限公司 | A kind of sand sticks the modification method of loamy texture saline-alkali soil |
| CN107926189A (en) * | 2017-11-22 | 2018-04-20 | 鞍钢集团矿业有限公司 | A kind of modification method of silty saline-alkali soil |
| CN108530146A (en) * | 2018-06-25 | 2018-09-14 | 中国地质大学（北京） | A kind of selenium-rich iron tailings composite mineral fertilizer and its preparation method and application |
| CN108585569A (en) * | 2018-06-25 | 2018-09-28 | 中国地质大学（北京） | A kind of full resource utilization method of iron tailings |
| CN109663563A (en) * | 2018-12-10 | 2019-04-23 | 河北省科学院生物研究所 | Modified Iron CHARACTERISTICS OF TAILINGS SAND, preparation and its application |
| CN110079332A (en) * | 2019-05-09 | 2019-08-02 | 上杭鑫昌龙实业有限公司 | Soil conditioner and preparation method thereof and application method |
| CN110885686A (en) * | 2019-10-25 | 2020-03-17 | 安徽金日晟矿业有限责任公司 | Soil conditioner and preparation method thereof |
| CN114591749A (en) * | 2022-03-21 | 2022-06-07 | 冯垚 | Iron tailing treating agent and application thereof |
| US20220388921A1 (en) * | 2021-06-02 | 2022-12-08 | Caete Participação E Administraçäo Eirelli | Disaggregable granulated calcium and/or magnesium and potassium fertilizer and method of obtaining thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107912098A (en) * | 2017-11-22 | 2018-04-17 | 鞍钢集团矿业有限公司 | A kind of sand sticks the modification method of loamy texture saline-alkali soil |
| CN107926189A (en) * | 2017-11-22 | 2018-04-20 | 鞍钢集团矿业有限公司 | A kind of modification method of silty saline-alkali soil |
| CN108530146A (en) * | 2018-06-25 | 2018-09-14 | 中国地质大学（北京） | A kind of selenium-rich iron tailings composite mineral fertilizer and its preparation method and application |
| CN108585569A (en) * | 2018-06-25 | 2018-09-28 | 中国地质大学（北京） | A kind of full resource utilization method of iron tailings |
| CN108585569B (en) * | 2018-06-25 | 2020-09-01 | 中国地质大学（北京） | Iron tailing full resource utilization method |
| CN109663563A (en) * | 2018-12-10 | 2019-04-23 | 河北省科学院生物研究所 | Modified Iron CHARACTERISTICS OF TAILINGS SAND, preparation and its application |
| CN109663563B (en) * | 2018-12-10 | 2024-01-19 | 河北省科学院生物研究所 | Modified iron tailing sand, preparation and application thereof |
| CN110079332A (en) * | 2019-05-09 | 2019-08-02 | 上杭鑫昌龙实业有限公司 | Soil conditioner and preparation method thereof and application method |
| CN110885686A (en) * | 2019-10-25 | 2020-03-17 | 安徽金日晟矿业有限责任公司 | Soil conditioner and preparation method thereof |
| US20220388921A1 (en) * | 2021-06-02 | 2022-12-08 | Caete Participação E Administraçäo Eirelli | Disaggregable granulated calcium and/or magnesium and potassium fertilizer and method of obtaining thereof |
| CN114591749A (en) * | 2022-03-21 | 2022-06-07 | 冯垚 | Iron tailing treating agent and application thereof |
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