CN105860987A - Composite type soil improvement agent and preparation method thereof - Google Patents
Composite type soil improvement agent and preparation method thereof Download PDFInfo
- Publication number
- CN105860987A CN105860987A CN201610393505.8A CN201610393505A CN105860987A CN 105860987 A CN105860987 A CN 105860987A CN 201610393505 A CN201610393505 A CN 201610393505A CN 105860987 A CN105860987 A CN 105860987A
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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
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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
Abstract
The invention relates to a composite type soil improvement agent and a preparation method thereof. The method comprises the steps that a, straw is smashed and screened by a 20-150-mesh screen, and straw powder is obtained; b, the straw powder obtained in the step a is mixed with bentonite, xylogen, coal ash, a water-soluble polymer compound and water to obtain mixed serosity, wherein the solid content of the serosity is 5-45%, and the mass ratio of the straw powder to the bentonite to the xylogen to the coal ash to the water-soluble polymer compound is 1:(0.03-1):(0.03-1):(0.03-1):(0.03-1); c, the mixed serosity obtained in the step b is mixed with active carbon with the average grain diameter of 1-10 micrometers according to the mass ratio being 1:(0.03-0.1) for spray drying, and the composite type soil improvement agent is obtained. The soil improvement agent prepared through the method is low in cost, low in decomposition speed and capable of promoting plant growth.
Description
Technical field
The present invention relates to soil conditioner field, be specifically related to the preparation method of a kind of compound soil modifier and made
Standby compound soil modifier.
Background technology
Soil improvement is the bad quality for soil and structure, takes corresponding physics, biological or chemical measure, changes
Kind soil property, increases soil fertility, and increases crop yield, and improves the process of human survival soil environment.All
It is mainly used in improveing the physics of soil, chemistry and biological property so that it is be more suitable for plant growth rather than mainly carry
For the material of plant nutrient, referred to as soil conditioner.
Chinese patent CN103820124A discloses a kind of soil conditioner, including the component of following percetage by weight, with
Dry weight calculates, mud 80%-85%, flyash 15%-20%.This environmentally friendly soil conditioner be applicable to deserted mountain and
Mining soil is repaired, and can effectively prevent the pernicious gas that mud distributes to Atmospheric Diffusion, have simultaneously and significantly improve soil
Earth fertility, improves effect of plant land occupation condition.This invention is simple and feasible, can turn waste into wealth, and can accelerate soil
Repair and the process of land reclamation.
Chinese patent CN104961610A discloses a kind of soil conditioner, and described soil conditioner is by turfy soil, wheat meal
Stone, wormcast and ferment are mixed.The soil conditioner of this invention makes simple, effective, not only can conditioned soil
Earth, and this soil conditioner can coordinate biogas slurry to use, the use of thorough fertilizer for replacing chemical, fundamentally removes chemical fertilizer pair
The pollution in soil.Confirming through reality application, this soil conditioner is effectively reduced soil-borne disease and regulation acid-base balance,
It is beneficial to plant growth, the content to human body beneficial mineral matter of fruits and vegetables can be dramatically increased, increase yield, the most organic
Fruits and vegetables, green fruit-vegetable and the production of nuisanceless fruits and vegetables.By the crop of the soil plantation that this soil conditioner is improved, mouthfeel
It is substantially better than the like product that market is sold.
Existing soil conditioner has the easily shortcoming such as decomposition and large usage quantity, and relatively costly.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the invention provides the preparation of a kind of compound soil modifier
Method and prepared compound soil modifier, soil conditioner prepared by the inventive method not only low cost, decompose
Speed is slow, and can promote the growth of plant.
The technical solution adopted in the present invention is:
The present invention provides the preparation method of a kind of compound soil modifier, it is characterised in that the method includes: a, general
Stalk crosses 20-150 mesh sieve after pulverizing, and obtains powder of straw；B, by gained powder of straw in step a and bentonite,
Lignin, flyash, water-soluble high-molecular compound and water mixing, obtain mixed serum；Wherein, consolidating of slurries contains
Amount is 5-45%, and powder of straw is 1 with bentonite, lignin, flyash, the mass ratio of water-soluble high-molecular compound:
(0.03-1): (0.03-1): (0.03-1): (0.03-1)；C, by gained mixed serum in step b with mass ratio 1:
(0.03-0.1) it is spray-dried after mixing with the activated carbon that average grain diameter is 1-10 micron, obtains combined soil
Modifying agent.
Preferably, described powder of straw crosses 50-100 mesh sieve, and described straw are selected from maize straw, broomcorn straw, big beanstalk
Stalk and wheat stalk are at least one.
Preferably, described water-soluble high-molecular compound is is at least one in starch, guar gum and sesbania gum.
Preferably, the solid content of described slurries is 10-40%, powder of straw and bentonite, lignin, flyash, water-soluble
The mass ratio of property macromolecular compound is 1:(0.1-0.5): (0.1-0.5): (0.1-0.5): (0.1-0.5).
Preferably, described mixed serum is 1:(0.05-0.08 with the mass ratio of activated carbon).
Preferably, the average grain diameter of described activated carbon is 2-8 micron.
Preferably, the inlet temperature of described spray drying is 350-450 DEG C, and outlet temperature is 200-300 DEG C.
Preferably, the pore volume of described activated carbon is 1.1-2.1ml/g, and specific surface is 500-1000m2/g。
Preferably, the method also includes: be dried 1-10 at 80-150 DEG C by being spray-dried thus obtained microsphere in step c
Hour, obtain described compound soil modifier.
The present invention also provides for the compound soil modifier prepared by preparation method of the present invention.
The invention have the benefit that
One, soil conditioner prepared by the inventive method not only low cost, decomposition rate is slow, and can promote to plant
The growth of thing；
Its two, the present invention uses powder of straw, bentonite, lignin, flyash and water-soluble high-molecular compound etc. to make
Soil conditioner is prepared, not only environmental protection for raw material, and beneficially twice laid；
Its three, the preparation method of the present invention is not only simple, and low cost, it is easy to industrialization.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only a part of embodiment of the present invention rather than whole enforcement
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are institute on the premise of not making creative work
Other embodiments all obtained, broadly fall into the scope that the present invention is protected.
The present invention provides the preparation method of a kind of compound soil modifier, it is characterised in that the method includes: a, general
Stalk crosses 20-150 mesh sieve after pulverizing, and obtains powder of straw；B, by gained powder of straw in step a and bentonite,
Lignin, flyash, water-soluble high-molecular compound and water mixing, obtain mixed serum；Wherein, consolidating of slurries contains
Amount is 5-45%, and powder of straw is 1 with bentonite, lignin, flyash, the mass ratio of water-soluble high-molecular compound:
(0.03-1): (0.03-1): (0.03-1): (0.03-1)；C, by gained mixed serum in step b with mass ratio 1:
(0.03-0.1) it is spray-dried after mixing with the activated carbon that average grain diameter is 1-10 micron, obtains combined soil
Modifying agent.
According to the present invention, described powder of straw is well-known to those skilled in the art, can be selected from maize straw, height
Fine strain of millet stalk, soybean stalk and wheat stalk are at least one, preferably cross 50-100 mesh sieve.
According to the present invention, water-soluble high-molecular compound is the macromolecular material of a kind of strongly hydrophilic, can dissolve or swelling
Yu Shuizhong forms the aqueous solution or dispersion, such as, can be to be at least one in starch, guar gum and sesbania gum.
According to the present invention, the solid content of described slurries can be 10-40%, powder of straw and bentonite, lignin, fine coal
Ash, the mass ratio of water-soluble high-molecular compound can be 1:(0.1-0.5): (0.1-0.5): (0.1-0.5):
(0.1-0.5)。
According to the present invention, described mixed serum can be 1:(0.05-0.08 with the mass ratio of activated carbon).
According to the present invention, activated carbon is well known to those skilled in the art, and the average grain diameter of described activated carbon can be 2-8
Micron, the pore volume of described activated carbon can be 1.1-2.1ml/g, and specific surface can be 500-1000m2/g。
According to the present invention, spray drying is well known to those skilled in the art, and the inlet temperature of described spray drying is permissible
For 350-450 DEG C, outlet temperature is 200-300 DEG C.
According to the present invention, the method can also include: does being spray-dried thus obtained microsphere in step c at 80-150 DEG C
Dry 1-10 hour, obtain described compound soil modifier.
The present invention also provides for the compound soil modifier prepared by preparation method of the present invention.
The present invention will be further illustrated by embodiment below, but the present invention is not therefore subject to any restriction.
If no special instructions, instrument of the present invention and reagent are and are purchased, and the commodity of different brands do not affect and specifically make
With.
Embodiment 1
A, maize straw is pulverized after cross 20 mesh sieves, obtain powder of straw；B, by gained powder of straw in step a with
Bentonite, lignin, flyash, guar gum and water mixing, obtain mixed serum；Wherein, the solid content of slurries is
5%, powder of straw is 1:(0.03-1 with bentonite, lignin, flyash, the mass ratio of water-soluble high-molecular compound):
0.5:0.5:0.5；C, it is 5 microns by gained mixed serum in step b with mass ratio 1:0.03 and average grain diameter,
Pore volume is 1.5ml/g, and specific surface is 700m2It is spray-dried after the activated carbon mixing of/g, entering of spray drying
Mouth temperature is 400 DEG C, and outlet temperature is 250 DEG C, is then dried 3 hours at 100 DEG C, obtains combined soil and change
Good dose 1.
Embodiment 2
A, wheat stalk is pulverized after cross 70 mesh sieves, obtain powder of straw；B, by gained powder of straw in step a with
Bentonite, lignin, flyash, starch and water mixing, obtain mixed serum；Wherein, the solid content of slurries is 45%,
Powder of straw is 1:1:1:1:1 with bentonite, lignin, flyash, the mass ratio of water-soluble high-molecular compound；
C, being 1 micron by gained mixed serum in step b with mass ratio 1:0.1 and average grain diameter, pore volume is 1.1ml/g,
Specific surface is 500m2Being spray-dried after the activated carbon mixing of/g, the inlet temperature of spray drying is 450 DEG C, outlet
Temperature is 300 DEG C, is then dried 6 hours at 150 DEG C, obtains compound soil modifier 2.
Embodiment 3
A, soybean stalk is pulverized after cross 150 mesh sieves, obtain powder of straw；B, by gained powder of straw in step a
Mix with bentonite, lignin, flyash, sesbania gum and water, obtain mixed serum；Wherein, the solid content of slurries
Being 30%, powder of straw is 1:0.03 with bentonite, lignin, flyash, the mass ratio of water-soluble high-molecular compound:
0.03:0.03:0.03；C, by gained mixed serum in step b with mass ratio 1:0.07 and average grain diameter for 10
Micron, pore volume is 2.1ml/g, and specific surface is 1000m2Being spray-dried after the activated carbon mixing of/g, spraying is dry
Dry inlet temperature is 350 DEG C, and outlet temperature is 200 DEG C, is then dried 10 hours at 80 DEG C, obtains compound
Soil conditioner 3.
Application Example 1-3
The soil conditioner that Application Example 1-3 uses the embodiment of the present invention to prepare adds in the soil of somewhere, Shandong and carries out
Maize planting, spills and execute soil conditioner the first season, and not spilling the second season and executing the corn planting time is 25 days concrete outcome such as tables
Shown in 1.
From the data of table 1 it can be seen that use the soil additive of the present invention to carry out improving soil, it is possible to promote corn
Growth, and effectively utilize the time long, the facilitation effect of the second season is good, illustrates that decomposition rate is slow, applied once,
Be benefited for many years.
Table 1
Claims (10)
1. the preparation method of a compound soil modifier, it is characterised in that the method includes:
A, stalk is pulverized after cross 20-150 mesh sieve, obtain powder of straw；
B, by gained powder of straw in step a and bentonite, lignin, flyash, water soluble polymer chemical combination
Thing and water mixing, obtain mixed serum；Wherein, the solid content of slurries is 5-45%, powder of straw and bentonite,
Lignin, flyash, the mass ratio of water-soluble high-molecular compound are 1:(0.03-1): (0.03-1):
(0.03-1): (0.03-1)；
C, by gained mixed serum in step b with mass ratio 1:(0.03-0.1) with average grain diameter as 1-10
It is spray-dried after the activated carbon mixing of micron, obtains compound soil modifier.
Preparation method the most according to claim 1, it is characterised in that described powder of straw crosses 50-100 mesh sieve,
Described straw are is at least one in maize straw, broomcorn straw, soybean stalk and wheat stalk.
Preparation method the most according to claim 1, it is characterised in that described water-soluble high-molecular compound is
It is at least one in starch, guar gum and sesbania gum.
Preparation method the most according to claim 1, it is characterised in that the solid content of described slurries is 10-40%,
Powder of straw is 1 with bentonite, lignin, flyash, the mass ratio of water-soluble high-molecular compound:
(0.1-0.5): (0.1-0.5): (0.1-0.5): (0.1-0.5).
Preparation method the most according to claim 1, it is characterised in that described mixed serum and the quality of activated carbon
Ratio is 1:(0.05-0.08).
Preparation method the most according to claim 1, it is characterised in that the average grain diameter of described activated carbon is 2-8
Micron.
Preparation method the most according to claim 1, it is characterised in that the inlet temperature of described spray drying is
350-450 DEG C, outlet temperature is 200-300 DEG C.
Preparation method the most according to claim 1, it is characterised in that the pore volume of described activated carbon is
1.1-2.1ml/g, specific surface is 500-1000m2/g。
Preparation method the most according to claim 1, it is characterised in that the method also includes: by step c
It is spray-dried thus obtained microsphere to be dried 1-10 hour at 80-150 DEG C, obtains described compound soil modifier.
10. the compound soil modifier prepared by preparation method described in any one in claim 1-9.
Priority Applications (1)
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| CN201610393505.8A CN105860987A (en) | 2016-06-06 | 2016-06-06 | Composite type soil improvement agent and preparation method thereof |
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Cited By (5)
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| CN106520133A (en) * | 2016-10-17 | 2017-03-22 | 山东崇舜新材料科技有限公司 | Soil improver prepared by carrying out recovery treatment on industrial active carbon, preparation method and applications thereof |
| CN106883860A (en) * | 2017-04-17 | 2017-06-23 | 中源晟朝股份有限公司 | A kind of soil-repairing agent and its application process |
| CN106978189A (en) * | 2017-05-23 | 2017-07-25 | 李岚 | A kind of efficient soil stabilizer |
| CN107746712A (en) * | 2017-10-18 | 2018-03-02 | 洪雅县瓦屋山药业有限公司 | A kind of Chinese medicine planting soil modifying agent and preparation method thereof |
| CN112889624A (en) * | 2021-01-14 | 2021-06-04 | 广东捷玛节能科技股份有限公司 | Greening soil prepared from construction waste and preparation method and application thereof |
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| CN106978189A (en) * | 2017-05-23 | 2017-07-25 | 李岚 | A kind of efficient soil stabilizer |
| CN107746712A (en) * | 2017-10-18 | 2018-03-02 | 洪雅县瓦屋山药业有限公司 | A kind of Chinese medicine planting soil modifying agent and preparation method thereof |
| CN112889624A (en) * | 2021-01-14 | 2021-06-04 | 广东捷玛节能科技股份有限公司 | Greening soil prepared from construction waste and preparation method and application thereof |
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Application publication date: 20160817 |