CN110002904A - A kind of formula and preparation method thereof preparing acid soil improving agent using gangue - Google Patents
A kind of formula and preparation method thereof preparing acid soil improving agent using gangue Download PDFInfo
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- CN110002904A CN110002904A CN201910345832.XA CN201910345832A CN110002904A CN 110002904 A CN110002904 A CN 110002904A CN 201910345832 A CN201910345832 A CN 201910345832A CN 110002904 A CN110002904 A CN 110002904A
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- gangue
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- acid soil
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- 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
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- 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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
Abstract
The invention discloses a kind of formulas that acid soil improving agent is prepared using gangue, it includes each component of following parts by weight: 20 parts of gangue, lime stone or 15 ~ 20 parts of ardealite, 1 ~ 2 part of auxiliary agent, it also discloses a kind of preparation method that acid soil improving agent is prepared using gangue, include the following steps, S1: raw material test；S2: raw material is broken；S3: ingredient；S4: mixing；S5: molding；S6: thermal activation；S7: quenching；S8: drying；S9: it crushes.Acid soil improving agent of the invention, so that gangue is turned waste into wealth, and the powder being made of gangue forms mesoporous and micropore, improves soil texture, increase the water-retaining property and aeration of soil under high temperature action；And the activity of acid soil improving agent is high, and activating substance forms alkaline matter under the action of water, thus by the acidic materials in alkaline matter and in soil, to repair the acid soil ecosystem.
Description
Technical field
The present invention relates to the technical fields that gangue prepares acid soil improving agent, especially a kind of to be prepared using gangue
Formula of acid soil improving agent and preparation method thereof.
Background technique
Gangue is the solid industrial waste generated in coal mining and process, includes multi mineral ingredient.
Wherein, the content of kaolin and quartz accounts for about 50% or more, it is also possible to contain illite, chlorite, muscovite, feldspar, Huang Tie
Other crystal phase mineral such as mine, siderite, bloodstone, calcite.Wherein kaolinite, illite, chlorite, muscovite, feldspar etc.
Bauxite clay class mineral are belonged to, good absorption property is embodied.The main chemical compositions of gangue include AL2O3, SiO2,
CaO, MgO, Fe2O3, K2O and Na2O etc..Coal geology age and from different places, these chemical composition contents have very great fluctuation process.
However, the gangue of coal enterprise's stockpiling is up to 5,000,000,000 t, and discharge amount is to be no less than annual 300000000 t in China
Speed increase.Before expecting 2020, the annual discharge amount of China's gangue will no less than 700,000,000 t.It stores up throughout the year
Gangue not only wastes a large amount of valuable land resources, can also destroy the ecological environment in mining area, influences the groundwater quality in mining area,
Destroy landscape etc..The spoils such as Pan Mei group, lotus group without ground can heap stage.The traditional treatment method of gangue is all
For brickmaking, generates electricity or repair the roads, and the gangue calorific value of certain areas is relatively low, is unsuitable for generating electricity, such as: Sichuan, because
This, the problem of gangue, has seriously affected the normal operation of coal mine.
Gangue contains multi mineral ingredient, these mineralogical compositions, is mineralogical composition needed for mineral fertilizer, but I
Gangue is not used as the research on acid soil repair materials also by state at present.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides and a kind of prepares acid soil improvement using gangue
Formula of agent and preparation method thereof.
The purpose of the present invention is achieved through the following technical solutions: a kind of to prepare acid soil improving agent using gangue
Formula, it includes each component of following parts by weight: 20 parts of gangue, lime stone or 15 ~ 20 parts of ardealite, 1 ~ 2 part of auxiliary agent.
Further, the auxiliary agent is alkali metal oxide or alkali metal salt
A kind of preparation method preparing acid soil improving agent using gangue, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone or phosphorus
15 ~ 20 parts of gypsum, 1 ~ 2 part of auxiliary agent；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing；
S5: mixture is passed through molding machine compression moulding by molding；
S6: thermal activation heats mixture molding in S5, and makes its activation；
S7: the mixture that completion is activated in S6 is carried out quenching by way of water mist quenching by quenching；
S8: the mixture after quenching in S7 is dried, obtains dry mixture by drying；
S9: it crushes, the mixture dried in S8 is crushed, finished product is obtained.
Further, including the following steps in the S2 step,
S21: raw material is carried out by jaw crusher rough and torn, obtains feed particulate material by coarse crushing；
S22: the feed particulate material in S21 is carried out grinding by ball mill, obtains powder by fine grinding.
Further, the granularity of the powder in the S22 after ball mill fine grinding is 160 ~ 250 mesh.
Further, in the S5 step, mixture is suppressed squarely by molding machine.
Further, heating equipment employed in the S6 step is tunnel oven, rotary kiln, chamber kiln, shuttle kiln, platform
One kind of vehicle kiln and microwave kiln.
Further, in the S6 step, when heating, heating rate is 3 ~ 30 DEG C/min, holding temperature: 800 ~ 1300
DEG C, 1 ~ 4h of soaking time.
Further, in the S7 step, the extra waste water after quenching is recycled, and the waste water is used as in S5 step
Moulding process water.
Further, the drying temperature in the S8 is 50 ~ 110 degrees Celsius.
Further, including the following steps in the S9 step,
S91: the mixture dried in S9 is carried out by jaw crusher rough and torn, obtains granular mixture by coarse crushing；
S92: the granular mixture in S91 is carried out grinding by ball mill, obtains product by fine grinding.
Further, the granularity of the powder in the S92 after ball mill fine grinding is 160 ~ 250 mesh.
The invention has the following advantages that
1, acid soil improving agent of the invention uses gangue for main production raw material, so that the cost of raw material reduces, thus
The production cost of acid soil improving agent is reduced, and gangue is turned waste into wealth, can solve existing Piling of Gangue mistake
More statuses, and whole preparation process environmental protection, the acid soil improving agent that will not be generated secondary pollution, and prepare are powder
Shape is expected, convenient for the packaging of acid soil improving agent, transport and use.
2, unformed active material is become, and the carbon in gangue so that the brilliant packet of powder destroys by thermal activation
It in high-temperature calcination, is reacted with the oxygen in air and generates carbon dioxide, carbon dioxide overflows, so that being formed in gangue
Mesoporous and micropore, to have very big specific surface area, by mesoporous and micropore, aqueous is so as to being stored in mesoporous and micropore
It is interior, enhance the water retention property of soil, and mesoporous and micropore also will increase the gas permeability of soil；
3, in calcination process, aluminum oxide, calcium oxide, the iron oxide etc. in gangue is activated, activity three is formed and aoxidizes
Two aluminium, active calcium oxide, activated ferric oxide, and lime stone is in thermal activation process, moreover it is possible to promote the titanium dioxide in gangue
The activation of silicon, hydroxide ion collection in active aluminum oxide, active calcium oxide, activated ferric oxide and active silica and water
It closes, formation aluminium hydroxide, calcium hydroxide, iron hydroxide and silicon hydroxide, and aluminium hydroxide, calcium hydroxide, iron hydroxide and hydrogen
Silica is reacted with the acidic materials in acid soil, to neutralize acid in soil, the rehabilitating soil ecosystem.
Specific embodiment
Embodiment one:
A kind of formula preparing Si-K fertilizer using gangue, it includes each component of following parts by weight: it includes following parts by weight
Each component: 20 parts of gangue, lime stone or 15 parts of ardealite, 1 part of auxiliary agent, it is preferred that auxiliary agent is alkali metal oxide, alkali gold
Category oxide is one kind of magnesia, calcium oxide, sodium oxide molybdena, potassium oxide or a variety of.
A kind of preparation method preparing acid soil improving agent using gangue, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite, lime stone and ardealite can supplement the calcium content in raw material；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；Further, raw material is broken is divided into two steps,
That is coarse crushing and fine grinding first carries out coarse crushing, raw material is rough and torn by the progress of rough and torn equipment, it is preferred that be carried out using jaw crusher
It is rough and torn, feed particulate material is obtained, the main purpose of coarse crushing is to be crushed big block-like coal shale in brick making, is broken into graininess
Raw material refined so that gangue is able to enter in Refining apparatus, secondly, sending granular raw material to fine grinding
It goes to be ground in equipment, preferred Refining apparatus is ball mill, obtains powder, it is generally the case that pass through ball mill milled
Powder be needed for powder, i.e., ball mill fine grinding after powder particles be 160 mesh, certainly, in the actual production process, can will
The powder of ball mill milled is screened by screening machine, filters out the powder of 160 mesh, is then greater than the powder of 160 mesh, then again
Secondary progress ball mill is ground.
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone
Or the parts by weight of ardealite are 15 parts, the parts by weight of auxiliary agent are 1 part；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing, when stirring, needs the material that will be prepared
It is sufficiently mixed；
S5: mixture is passed through molding machine compression moulding by molding, it is preferred that mixture is suppressed squarely by molding machine, such as rectangular
Body, after mixture is cuboid, convenient for the transport of mixture, and discharge, the placement especially in heating equipment；
S6: thermal activation heats mixture molding in S5, and makes its activation, in the present embodiment, used heating
Equipment is tunnel oven, and when heated, warming temperature is that 3 DEG C/min is kept the temperature after reaching 800 DEG C of holding temperature, when heat preservation
Between be 1h；By soak, the thermal activation of powder can be fully ensured that, become by thermal activation so that the brilliant packet of powder destroys
Carbon at unformed active material, and in gangue reacts with the oxygen in air in high-temperature calcination and generates titanium dioxide
Carbon, carbon dioxide overflow, so that forming mesoporous and micropore in gangue, to have very big specific surface area, pass through Jie
Hole and micropore, aqueous enhance the water retention property of soil, and mesoporous and micropore can also so as to be stored in mesoporous and micropore
Increase the gas permeability of soil；Further, in calcination process, by aluminum oxide, calcium oxide, the iron oxide etc. in gangue
Activation forms active aluminum oxide, active calcium oxide, activated ferric oxide, and lime stone is in thermal activation process, moreover it is possible to promote
Into the activation of the silica in gangue.
S7: the mixture that completion is activated in S6 is carried out quenching by quenching by way of water mist quenching, and water mist can act on
In entire mixture, so that mixture is cooled uniformly, so that quenching effect is improved, and by quenching, so that the powder after activation
The brilliant packet that material has little time to become stable further, passes through water mist so that the powder after activating in S6 keeps activity
After quenching, then water mist is condensed, waste water is formed, and carry out centralized recovery to it, and the waste water is delivered to molding equipment, makes
It becomes the molding process water of mixture, to save water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly life
It produces.
S8: the mixture after quenching in S7 is dried, obtains dry mixture, it is preferred that after quenching by drying
Mixture is put into drying oven and is dried, and drying temperature is 50 DEG C；
S9: crushing, the mixture dried in S8 be crushed, finished product is obtained, the broken crumbling method base with S2 at this
This is identical, i.e., rough and torn, by mixture by being crushed crusher machine, obtains powder；Further, mixture is broken is divided into two steps
Suddenly, i.e. coarse crushing and fine grinding first carries out coarse crushing, mixture is rough and torn by the progress of rough and torn equipment, it is preferred that use jaw crusher
It carries out rough and torn, obtains granular mixture, go to grind into Refining apparatus secondly, sending granular mixture, preferably
Refining apparatus be ball mill, obtain powder, it is generally the case that powder needed for being by the powder of ball mill milled, i.e. ball
Powder particles after grinding machine fine grinding are that 160 mesh in the actual production process, the powder of ball mill milled can be passed through certainly
Screening machine is screened, and the powder of 160 mesh is filtered out, and is then greater than the powder of 160 mesh, then carries out ball mill again and ground
Mill.
The acid soil improving agent of the present embodiment is put into soil by high temperature thermal activation, the acid soil of activation
Earth modifying agent hydrolyzes under the action of water, active aluminum oxide, active calcium oxide, activated ferric oxide and active silica and water
Middle hydroxide ion set, formation aluminium hydroxide, calcium hydroxide, iron hydroxide and silicon hydroxide, and aluminium hydroxide, hydroxide
Calcium, iron hydroxide and silicon hydroxide are reacted with the acidic materials in acid soil, to neutralize acid in soil, rehabilitating soil life
State system.
Embodiment two:
A kind of formula preparing Si-K fertilizer using gangue, it includes each component of following parts by weight: it includes following parts by weight
Each component: 20 parts of gangue, lime stone or 20 parts of ardealite, 2 parts of auxiliary agent, auxiliary agent is alkali metal oxide, alkali metal oxidation
Object is one kind of magnesia, calcium oxide, sodium oxide molybdena, potassium oxide or a variety of.
A kind of preparation method preparing acid soil improving agent using gangue, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；Further, raw material is broken is divided into two steps,
That is coarse crushing and fine grinding first carries out coarse crushing, raw material is rough and torn by the progress of rough and torn equipment, it is preferred that be carried out using jaw crusher
It is rough and torn, feed particulate material is obtained, the main purpose of coarse crushing is to be crushed big block-like coal shale in brick making, is broken into graininess
Raw material refined so that gangue is able to enter in Refining apparatus, secondly, sending granular raw material to fine grinding
It goes to be ground in equipment, preferred Refining apparatus is ball mill, obtains powder, it is generally the case that pass through ball mill milled
Powder be needed for powder, i.e., ball mill fine grinding after powder particles be 250 mesh, certainly, in the actual production process, can will
The powder of ball mill milled is screened by screening machine, filters out the powder of 250 mesh, is then greater than the powder of 250 mesh, then again
Secondary progress ball mill is ground.
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone
Or the parts by weight of ardealite are 20 parts, 2 parts of the parts by weight of auxiliary agent, wherein auxiliary agent preferably selects alkali metal oxide, alkali metal
Oxide is one kind of magnesia, calcium oxide, sodium oxide molybdena, potassium oxide or a variety of；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing, when stirring, needs the material that will be prepared
It is sufficiently mixed；
S5: mixture is passed through molding machine compression moulding by molding, it is preferred that mixture is suppressed squarely by molding machine, such as rectangular
Body, after mixture is cuboid, convenient for the transport of mixture, and discharge, the placement especially in heating equipment；
S6: thermal activation heats mixture molding in S5, and makes its activation, in the present embodiment, used heating
Equipment is rotary kiln, and when heated, warming temperature is that 30 DEG C/min is kept the temperature after reaching 1300 DEG C of holding temperature, is kept the temperature
Time is 4h；By soak, the thermal activation of powder can be fully ensured that, by thermal activation, so that the brilliant packet of powder destroys,
Become unformed active material, and the carbon in gangue reacts with the oxygen in air in high-temperature calcination and generates dioxy
Change carbon, carbon dioxide overflows, so that forming mesoporous and micropore in gangue, to have very big specific surface area, passes through
Mesoporous and micropore, aqueous enhance the water retention property of soil, and mesoporous and micropore is also so as to be stored in mesoporous and micropore
It will increase the gas permeability of soil；Further, in calcination process, by aluminum oxide, calcium oxide, the iron oxide in gangue
Deng activation, active aluminum oxide, active calcium oxide, activated ferric oxide are formed, and lime stone is in thermal activation process, moreover it is possible to
Promote the activation of the silica in gangue.
S7: the mixture that completion is activated in S6 is carried out quenching by quenching by way of water mist quenching, and water mist can act on
In entire mixture, so that mixture is cooled uniformly, so that quenching effect is improved, and by quenching, so that the powder after activation
The brilliant packet that material has little time to become stable further, passes through water mist so that the powder after activating in S6 keeps activity
After quenching, then water mist is condensed, waste water is formed, and carry out centralized recovery to it, and the waste water is delivered to molding equipment, makes
It becomes the molding process water of mixture, to save water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly life
It produces.
S8: the mixture after quenching in S7 is dried, obtains dry mixture, it is preferred that after quenching by drying
Mixture is put into drying oven and is dried, and drying temperature is 110 DEG C；
S9: crushing, the mixture dried in S8 be crushed, finished product is obtained, the broken crumbling method base with S2 at this
This is identical, i.e., rough and torn, by mixture by being crushed crusher machine, obtains powder；Further, mixture is broken is divided into two steps
Suddenly, i.e. coarse crushing and fine grinding first carries out coarse crushing, mixture is rough and torn by the progress of rough and torn equipment, it is preferred that use jaw crusher
It carries out rough and torn, obtains granular mixture, go to grind into Refining apparatus secondly, sending granular mixture, preferably
Refining apparatus be ball mill, obtain powder, it is generally the case that powder needed for being by the powder of ball mill milled, i.e. ball
Powder particles after grinding machine fine grinding are that 250 mesh in the actual production process, the powder of ball mill milled can be passed through certainly
Screening machine is screened, and the powder of 250 mesh is filtered out, and is then greater than the powder of 250 mesh, then carries out ball mill again and ground
Mill.
The acid soil improving agent of the present embodiment is put into soil by high temperature thermal activation, the acid soil of activation
Earth modifying agent hydrolyzes under the action of water, active aluminum oxide, active calcium oxide, activated ferric oxide and active silica and water
Middle hydroxide ion set, formation aluminium hydroxide, calcium hydroxide, iron hydroxide and silicon hydroxide, and aluminium hydroxide, hydroxide
Calcium, iron hydroxide and silicon hydroxide are reacted with the acidic materials in acid soil, to neutralize acid in soil, rehabilitating soil life
State system.
Embodiment three:
A kind of formula preparing Si-K fertilizer using gangue, it includes each component of following parts by weight: 20 parts of gangue, lime stone
Or 18 parts of ardealite, 1.5 parts of auxiliary agent, further, auxiliary agent is alkali metal oxide, and alkali metal oxide is magnesia, oxidation
It is one kind of calcium, sodium oxide molybdena, potassium oxide or a variety of.
A kind of preparation method preparing acid soil improving agent using gangue, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；Further, raw material is broken is divided into two steps,
That is coarse crushing and fine grinding first carries out coarse crushing, raw material is rough and torn by the progress of rough and torn equipment, it is preferred that be carried out using jaw crusher
It is rough and torn, feed particulate material is obtained, the main purpose of coarse crushing is to be crushed big block-like coal shale in brick making, is broken into graininess
Raw material refined so that gangue is able to enter in Refining apparatus, secondly, sending granular raw material to fine grinding
It goes to be ground in equipment, preferred Refining apparatus is ball mill, obtains powder, it is generally the case that pass through ball mill milled
Powder be needed for powder, i.e., ball mill fine grinding after powder particles be 180 mesh, certainly, in the actual production process, can will
The powder of ball mill milled is screened by screening machine, filters out the powder of 180 mesh, is then greater than the powder of 180 mesh, then again
Secondary progress ball mill is ground.
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone
Or the parts by weight of ardealite are 18 parts, the parts by weight of auxiliary agent are 1.5 parts；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing, when stirring, needs the material that will be prepared
It is sufficiently mixed；
S5: mixture is passed through molding machine compression moulding by molding, it is preferred that mixture is suppressed squarely by molding machine, such as rectangular
Body, after mixture is cuboid, convenient for the transport of mixture, and discharge, the placement especially in heating equipment；
S6: thermal activation heats mixture molding in S5, and makes its activation, in the present embodiment, used heating
Equipment is chamber kiln, and when heated, warming temperature is that 5 DEG C/min is kept the temperature after reaching 900 DEG C of holding temperature, when heat preservation
Between be 2h；By soak, the thermal activation of powder can be fully ensured that, become by thermal activation so that the brilliant packet of powder destroys
Carbon at unformed active material, and in gangue reacts with the oxygen in air in high-temperature calcination and generates titanium dioxide
Carbon, carbon dioxide overflow, so that forming mesoporous and micropore in gangue, to have very big specific surface area, pass through Jie
Hole and micropore, aqueous enhance the water retention property of soil, and mesoporous and micropore can also so as to be stored in mesoporous and micropore
Increase the gas permeability of soil；Further, in calcination process, by aluminum oxide, calcium oxide, the iron oxide etc. in gangue
Activation forms active aluminum oxide, active calcium oxide, activated ferric oxide, and lime stone is in thermal activation process, moreover it is possible to promote
Into the activation of the silica in gangue.
S7: the mixture that completion is activated in S6 is carried out quenching by quenching by way of water mist quenching, and water mist can act on
In entire mixture, so that mixture is cooled uniformly, so that quenching effect is improved, and by quenching, so that the powder after activation
The brilliant packet that material has little time to become stable further, passes through water mist so that the powder after activating in S6 keeps activity
After quenching, then water mist is condensed, waste water is formed, and carry out centralized recovery to it, and the waste water is delivered to molding equipment, makes
It becomes the molding process water of mixture, to save water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly life
It produces.
S8: the mixture after quenching in S7 is dried, obtains dry mixture, it is preferred that after quenching by drying
Mixture is put into drying oven and is dried, and drying temperature is 60 DEG C；
S9: crushing, the mixture dried in S8 be crushed, finished product is obtained, the broken crumbling method base with S2 at this
This is identical, i.e., rough and torn, by mixture by being crushed crusher machine, obtains powder；Further, mixture is broken is divided into two steps
Suddenly, i.e. coarse crushing and fine grinding first carries out coarse crushing, mixture is rough and torn by the progress of rough and torn equipment, it is preferred that use jaw crusher
It carries out rough and torn, obtains granular mixture, go to grind into Refining apparatus secondly, sending granular mixture, preferably
Refining apparatus be ball mill, obtain powder, it is generally the case that powder needed for being by the powder of ball mill milled, i.e. ball
Powder particles after grinding machine fine grinding are that 180 mesh in the actual production process, the powder of ball mill milled can be passed through certainly
Screening machine is screened, and the powder of 180 mesh is filtered out, and is then greater than the powder of 180 mesh, then carries out ball mill again and ground
Mill.
The acid soil improving agent of the present embodiment is put into soil by high temperature thermal activation, the acid soil of activation
Earth modifying agent hydrolyzes under the action of water, active aluminum oxide, active calcium oxide, activated ferric oxide and active silica and water
Middle hydroxide ion set, formation aluminium hydroxide, calcium hydroxide, iron hydroxide and silicon hydroxide, and aluminium hydroxide, hydroxide
Calcium, iron hydroxide and silicon hydroxide are reacted with the acidic materials in acid soil, to neutralize acid in soil, rehabilitating soil life
State system.
Example IV:
A kind of formula preparing Si-K fertilizer using gangue, it includes each component of following parts by weight: 20 parts of gangue, lime stone
Or 16 parts of ardealite, 1.2 parts of auxiliary agent, further, auxiliary agent is alkali metal salt, and alkali metal salt is then magnesium carbonate, calcium carbonate, carbonic acid
Sodium, potassium carbonate it is one or more.
A kind of preparation method preparing acid soil improving agent using gangue, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；Further, raw material is broken is divided into two steps,
That is coarse crushing and fine grinding first carries out coarse crushing, raw material is rough and torn by the progress of rough and torn equipment, it is preferred that be carried out using jaw crusher
It is rough and torn, feed particulate material is obtained, the main purpose of coarse crushing is to be crushed big block-like coal shale in brick making, is broken into graininess
Raw material refined so that gangue is able to enter in Refining apparatus, secondly, sending granular raw material to fine grinding
It goes to be ground in equipment, preferred Refining apparatus is ball mill, obtains powder, it is generally the case that pass through ball mill milled
Powder be needed for powder, i.e., ball mill fine grinding after powder particles be 200 mesh, certainly, in the actual production process, can will
The powder of ball mill milled is screened by screening machine, filters out the powder of 200 mesh, is then greater than the powder of 200 mesh, then again
Secondary progress ball mill is ground.
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone
Or the parts by weight of ardealite are 16 parts, the parts by weight of auxiliary agent are 1.2 parts, wherein auxiliary agent preferably selects alkali metal salt；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing, when stirring, needs the material that will be prepared
It is sufficiently mixed；
S5: mixture is passed through molding machine compression moulding by molding, it is preferred that mixture is suppressed squarely by molding machine, such as rectangular
Body, after mixture is cuboid, convenient for the transport of mixture, and discharge, the placement especially in heating equipment；
S6: thermal activation heats mixture molding in S5, and makes its activation, in the present embodiment, used heating
Equipment is shuttle kiln, and when heated, warming temperature is that 10 DEG C/min is kept the temperature after reaching 1000 DEG C of holding temperature, is kept the temperature
Time is 3h；By soak, the thermal activation of powder can be fully ensured that, by thermal activation, so that the brilliant packet of powder destroys,
Become unformed active material, and the carbon in gangue reacts with the oxygen in air in high-temperature calcination and generates dioxy
Change carbon, carbon dioxide overflows, so that forming mesoporous and micropore in gangue, to have very big specific surface area, passes through
Mesoporous and micropore, aqueous enhance the water retention property of soil, and mesoporous and micropore is also so as to be stored in mesoporous and micropore
It will increase the gas permeability of soil；Further, in calcination process, by aluminum oxide, calcium oxide, the iron oxide in gangue
Deng activation, active aluminum oxide, active calcium oxide, activated ferric oxide are formed, and lime stone is in thermal activation process, moreover it is possible to
Promote the activation of the silica in gangue.
S7: the mixture that completion is activated in S6 is carried out quenching by quenching by way of water mist quenching, and water mist can act on
In entire mixture, so that mixture is cooled uniformly, so that quenching effect is improved, and by quenching, so that the powder after activation
The brilliant packet that material has little time to become stable further, passes through water mist so that the powder after activating in S6 keeps activity
After quenching, then water mist is condensed, waste water is formed, and carry out centralized recovery to it, and the waste water is delivered to molding equipment, makes
It becomes the molding process water of mixture, to save water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly life
It produces.
S8: the mixture after quenching in S7 is dried, obtains dry mixture, it is preferred that after quenching by drying
Mixture is put into drying oven and is dried, and drying temperature is 70 DEG C；
S9: crushing, the mixture dried in S8 be crushed, finished product is obtained, the broken crumbling method base with S2 at this
This is identical, i.e., rough and torn, by mixture by being crushed crusher machine, obtains powder；Further, mixture is broken is divided into two steps
Suddenly, i.e. coarse crushing and fine grinding first carries out coarse crushing, mixture is rough and torn by the progress of rough and torn equipment, it is preferred that use jaw crusher
It carries out rough and torn, obtains granular mixture, go to grind into Refining apparatus secondly, sending granular mixture, preferably
Refining apparatus be ball mill, obtain powder, it is generally the case that powder needed for being by the powder of ball mill milled, i.e. ball
Powder particles after grinding machine fine grinding are that 200 mesh in the actual production process, the powder of ball mill milled can be passed through certainly
Screening machine is screened, and the powder of 200 mesh is filtered out, and is then greater than the powder of 200 mesh, then carries out ball mill again and ground
Mill.
The acid soil improving agent of the present embodiment is put into soil by high temperature thermal activation, the acid soil of activation
Earth modifying agent hydrolyzes under the action of water, active aluminum oxide, active calcium oxide, activated ferric oxide and active silica and water
Middle hydroxide ion set, formation aluminium hydroxide, calcium hydroxide, iron hydroxide and silicon hydroxide, and aluminium hydroxide, hydroxide
Calcium, iron hydroxide and silicon hydroxide are reacted with the acidic materials in acid soil, to neutralize acid in soil, rehabilitating soil life
State system.
Embodiment five:
A kind of formula preparing Si-K fertilizer using gangue, it includes each component of following parts by weight: 20 parts of gangue, lime stone
Or 17 parts of ardealite, 1.4 parts of auxiliary agent, further, auxiliary agent is alkali metal salt, and alkali metal salt is then magnesium carbonate, calcium carbonate, carbonic acid
Sodium, potassium carbonate it is one or more.
A kind of preparation method preparing acid soil improving agent using gangue, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；Further, raw material is broken is divided into two steps,
That is coarse crushing and fine grinding first carries out coarse crushing, raw material is rough and torn by the progress of rough and torn equipment, it is preferred that be carried out using jaw crusher
It is rough and torn, feed particulate material is obtained, the main purpose of coarse crushing is to be crushed big block-like coal shale in brick making, is broken into graininess
Raw material refined so that gangue is able to enter in Refining apparatus, secondly, sending granular raw material to fine grinding
It goes to be ground in equipment, preferred Refining apparatus is ball mill, obtains powder, it is generally the case that pass through ball mill milled
Powder be needed for powder, i.e., ball mill fine grinding after powder particles be 220 mesh, certainly, in the actual production process, can will
The powder of ball mill milled is screened by screening machine, filters out the powder of 220 mesh, is then greater than the powder of 220 mesh, then again
Secondary progress ball mill is ground.
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone
Or the parts by weight of ardealite are 17 parts, the parts by weight of auxiliary agent are 1.4 parts, wherein auxiliary agent preferably selects alkali metal salt；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing, when stirring, needs the material that will be prepared
It is sufficiently mixed；
S5: mixture is passed through molding machine compression moulding by molding, it is preferred that mixture is suppressed squarely by molding machine, such as rectangular
Body, after mixture is cuboid, convenient for the transport of mixture, and discharge, the placement especially in heating equipment；
S6: thermal activation heats mixture molding in S5, and makes its activation, in the present embodiment, used heating
Equipment is car-bottom kiln, and when heated, warming temperature is that 20 DEG C/min is kept the temperature after reaching 1100 DEG C of holding temperature, is kept the temperature
Time is 3h；By soak, the thermal activation of powder can be fully ensured that, by thermal activation, so that the brilliant packet of powder destroys,
Become unformed active material, and the carbon in gangue reacts with the oxygen in air in high-temperature calcination and generates dioxy
Change carbon, carbon dioxide overflows, so that forming mesoporous and micropore in gangue, to have very big specific surface area, passes through
Mesoporous and micropore, aqueous enhance the water retention property of soil, and mesoporous and micropore is also so as to be stored in mesoporous and micropore
It will increase the gas permeability of soil；Further, in calcination process, by aluminum oxide, calcium oxide, the iron oxide in gangue
Deng activation, active aluminum oxide, active calcium oxide, activated ferric oxide are formed, and lime stone is in thermal activation process, moreover it is possible to
Promote the activation of the silica in gangue.
S7: the mixture that completion is activated in S6 is carried out quenching by quenching by way of water mist quenching, and water mist can act on
In entire mixture, so that mixture is cooled uniformly, so that quenching effect is improved, and by quenching, so that the powder after activation
The brilliant packet that material has little time to become stable further, passes through water mist so that the powder after activating in S6 keeps activity
After quenching, then water mist is condensed, waste water is formed, and carry out centralized recovery to it, and the waste water is delivered to molding equipment, makes
It becomes the molding process water of mixture, to save water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly life
It produces.
S8: the mixture after quenching in S7 is dried, obtains dry mixture, it is preferred that after quenching by drying
Mixture is put into drying oven and is dried, and drying temperature is 90 DEG C；
S9: crushing, the mixture dried in S8 be crushed, finished product is obtained, the broken crumbling method base with S2 at this
This is identical, i.e., rough and torn, by mixture by being crushed crusher machine, obtains powder；Further, mixture is broken is divided into two steps
Suddenly, i.e. coarse crushing and fine grinding first carries out coarse crushing, mixture is rough and torn by the progress of rough and torn equipment, it is preferred that use jaw crusher
It carries out rough and torn, obtains granular mixture, go to grind into Refining apparatus secondly, sending granular mixture, preferably
Refining apparatus be ball mill, obtain powder, it is generally the case that powder needed for being by the powder of ball mill milled, i.e. ball
Powder particles after grinding machine fine grinding are that 220 mesh in the actual production process, the powder of ball mill milled can be passed through certainly
Screening machine is screened, and the powder of 220 mesh is filtered out, and is then greater than the powder of 220 mesh, then carries out ball mill again and ground
Mill.
The acid soil improving agent of the present embodiment is put into soil by high temperature thermal activation, the acid soil of activation
Earth modifying agent hydrolyzes under the action of water, active aluminum oxide, active calcium oxide, activated ferric oxide and active silica and water
Middle hydroxide ion set, formation aluminium hydroxide, calcium hydroxide, iron hydroxide and silicon hydroxide, and aluminium hydroxide, hydroxide
Calcium, iron hydroxide and silicon hydroxide are reacted with the acidic materials in acid soil, to neutralize acid in soil, rehabilitating soil life
State system.
Embodiment six:
A kind of formula preparing Si-K fertilizer using gangue, it includes each component of following parts by weight: 20 parts of gangue, lime stone
Or 19 parts of ardealite, 1.7 parts of auxiliary agent, further, auxiliary agent is alkali metal salt, and alkali metal salt is then magnesium carbonate, calcium carbonate, carbonic acid
Sodium, potassium carbonate it is one or more.
A kind of preparation method preparing acid soil improving agent using gangue, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；Further, raw material is broken is divided into two steps,
That is coarse crushing and fine grinding first carries out coarse crushing, raw material is rough and torn by the progress of rough and torn equipment, it is preferred that be carried out using jaw crusher
It is rough and torn, feed particulate material is obtained, the main purpose of coarse crushing is to be crushed big block-like coal shale in brick making, is broken into graininess
Raw material refined so that gangue is able to enter in Refining apparatus, secondly, sending granular raw material to fine grinding
It goes to be ground in equipment, preferred Refining apparatus is ball mill, obtains powder, it is generally the case that pass through ball mill milled
Powder be needed for powder, i.e., ball mill fine grinding after powder particles be 235 mesh, certainly, in the actual production process, can will
The powder of ball mill milled is screened by screening machine, filters out the powder of 235 mesh, is then greater than the powder of 235 mesh, then again
Secondary progress ball mill is ground.
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone
Or the parts by weight of ardealite are 19 parts, the parts by weight of auxiliary agent are 1.7 parts, wherein auxiliary agent preferably selects alkali metal salt；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing, when stirring, needs the material that will be prepared
It is sufficiently mixed；
S5: mixture is passed through molding machine compression moulding by molding, it is preferred that mixture is suppressed squarely by molding machine, such as rectangular
Body, after mixture is cuboid, convenient for the transport of mixture, and discharge, the placement especially in heating equipment；
S6: thermal activation heats mixture molding in S5, and makes its activation, in the present embodiment, used heating
Equipment is microwave kiln, and when heated, warming temperature is that 25 DEG C/min is kept the temperature after reaching 1200 DEG C of holding temperature, is kept the temperature
Time is 2.5h；By soak, the thermal activation of powder can be fully ensured that, by thermal activation, so that the brilliant packet of powder is broken
It is bad, become unformed active material, and the carbon in gangue reacts generation two with the oxygen in air in high-temperature calcination
Carbonoxide, carbon dioxide overflow, so that forming mesoporous and micropore in gangue, to have very big specific surface area, lead to
Mesoporous and micropore is crossed, aqueous enhances the water retention property of soil, and mesoporous and micropore so as to be stored in mesoporous and micropore
It also will increase the gas permeability of soil；Further, in calcination process, by the aluminum oxide in gangue, calcium oxide, oxidation
The activation such as iron forms active aluminum oxide, active calcium oxide, activated ferric oxide, and lime stone is gone back in thermal activation process
It can promote the activation of the silica in gangue.
S7: the mixture that completion is activated in S6 is carried out quenching by quenching by way of water mist quenching, and water mist can act on
In entire mixture, so that mixture is cooled uniformly, so that quenching effect is improved, and by quenching, so that the powder after activation
The brilliant packet that material has little time to become stable further, passes through water mist so that the powder after activating in S6 keeps activity
After quenching, then water mist is condensed, waste water is formed, and carry out centralized recovery to it, and the waste water is delivered to molding equipment, makes
It becomes the molding process water of mixture, to save water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly life
It produces.
S8: the mixture after quenching in S7 is dried, obtains dry mixture, it is preferred that after quenching by drying
Mixture is put into drying oven and is dried, and drying temperature is 100 DEG C；
S9: crushing, the mixture dried in S8 be crushed, finished product is obtained, the broken crumbling method base with S2 at this
This is identical, i.e., rough and torn, by mixture by being crushed crusher machine, obtains powder；Further, mixture is broken is divided into two steps
Suddenly, i.e. coarse crushing and fine grinding first carries out coarse crushing, mixture is rough and torn by the progress of rough and torn equipment, it is preferred that use jaw crusher
It carries out rough and torn, obtains granular mixture, go to grind into Refining apparatus secondly, sending granular mixture, preferably
Refining apparatus be ball mill, obtain powder, it is generally the case that powder needed for being by the powder of ball mill milled, i.e. ball
Powder particles after grinding machine fine grinding are that 235 mesh in the actual production process, the powder of ball mill milled can be passed through certainly
Screening machine is screened, and the powder of 235 mesh is filtered out, and is then greater than the powder of 235 mesh, then carries out ball mill again and ground
Mill.
The acid soil improving agent of the present embodiment is put into soil by high temperature thermal activation, the acid soil of activation
Earth modifying agent hydrolyzes under the action of water, active aluminum oxide, active calcium oxide, activated ferric oxide and active silica and water
Middle hydroxide ion set, formation aluminium hydroxide, calcium hydroxide, iron hydroxide and silicon hydroxide, and aluminium hydroxide, hydroxide
Calcium, iron hydroxide and silicon hydroxide are reacted with the acidic materials in acid soil, to neutralize acid in soil, rehabilitating soil life
State system.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen
It please be within disclosed scope and spirit.It more specifically, within the scope of the present disclosure and claims, can be to master
The building block and/or layout for inscribing composite configuration carry out a variety of variations and modifications.In addition to what is carried out to building block and/or layout
Outside modification and improvement, to those skilled in the art, other purposes also be will be apparent.
Claims (10)
1. a kind of formula for preparing acid soil improving agent using gangue, it is characterised in that: it includes each of following parts by weight
Component: 20 parts of gangue, lime stone or 15 ~ 20 parts of ardealite, 1 ~ 2 part of auxiliary agent.
2. a kind of formula for preparing acid soil improving agent using gangue according to claim 1, it is characterised in that: institute
Stating auxiliary agent is alkali metal oxide or alkali metal salt.
3. a kind of preparation method that acid soil improving agent is prepared using gangue as described in 1 ~ 2 any one of claim,
It is characterized by: it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, lime stone or ardealite raw material, obtains coal
The chemical component and its content of spoil, lime stone or ardealite；
S2: raw material is broken, by raw material by being crushed crusher machine, obtains powder；
S3: ingredient carries out ingredient according to the gangue in S1 step, wherein the parts by weight of gangue are 20 parts, lime stone or phosphorus
15 ~ 20 parts of gypsum, 1 ~ 2 part of auxiliary agent；
S4: the material prepared in S3 step is put into agitating device, obtains mixture by mixing；
S5: mixture is passed through molding machine compression moulding by molding；
S6: thermal activation heats mixture molding in S5, and makes its activation；
S7: the mixture that completion is activated in S6 is carried out quenching by way of water mist quenching by quenching；
S8: the mixture after quenching in S7 is dried, obtains dry mixture by drying；
S9: the mixture dried in S8 is crushed, obtains finished product by separating twice.
4. a kind of preparation method for being prepared acid soil improving agent using gangue according to claim 1, feature are existed
In: include the following steps in S2 the and S9 step,
S21: raw material is carried out by jaw crusher rough and torn, obtains feed particulate material by coarse crushing；
S22: the feed particulate material in S21 is carried out grinding by ball mill, obtains powder by fine grinding.
5. a kind of preparation method for being prepared acid soil improving agent using gangue according to claim 3, feature are existed
In: the granularity of the powder in the S22 after ball mill fine grinding is 160 ~ 250 mesh.
6. a kind of preparation method for being prepared acid soil improving agent using gangue according to claim 3, feature are existed
In: in the S5 step, mixture is suppressed squarely by molding machine.
7. a kind of preparation method for being prepared acid soil improving agent using gangue according to claim 3, feature are existed
In: heating equipment employed in the S6 step is tunnel oven, rotary kiln, chamber kiln, shuttle kiln, car-bottom kiln and microwave kiln
It is a kind of.
8. a kind of preparation method for being prepared acid soil improving agent using gangue according to claim 3, feature are existed
In: in the S6 step, when heating, heating rate is 3 ~ 30 DEG C/min, holding temperature: 800 ~ 1300 DEG C, 1 ~ 4h of soaking time.
9. a kind of preparation method for being prepared acid soil improving agent using gangue according to claim 3, feature are existed
In: in the S7 step, the extra waste water after quenching is recycled, and the waste water is used as the moulding process in S5 step and is used
Water.
10. a kind of preparation method for being prepared acid soil improving agent using gangue according to claim 3, feature are existed
In: the drying temperature in the S8 is 50 ~ 110 degrees Celsius.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117629A (en) * | 2019-12-16 | 2020-05-08 | 山西大学 | Coal gangue porous soil conditioner and preparation method thereof |
| CN114409464A (en) * | 2022-01-17 | 2022-04-29 | 中国矿业大学 | Preparation method and product of coal gangue compound fertilizer |
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| SU1331882A1 (en) * | 1985-04-18 | 1987-08-23 | Северо-Кавказский научно-исследовательский институт природных газов | Structuring agent for acid soils |
| CN107827674A (en) * | 2017-12-08 | 2018-03-23 | 南京化学工业园环保产业协同创新有限公司 | A kind of soil conditioner suitable for vegetable cultivation |
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| SU1331882A1 (en) * | 1985-04-18 | 1987-08-23 | Северо-Кавказский научно-исследовательский институт природных газов | Structuring agent for acid soils |
| CN107827674A (en) * | 2017-12-08 | 2018-03-23 | 南京化学工业园环保产业协同创新有限公司 | A kind of soil conditioner suitable for vegetable cultivation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111117629A (en) * | 2019-12-16 | 2020-05-08 | 山西大学 | Coal gangue porous soil conditioner and preparation method thereof |
| CN114409464A (en) * | 2022-01-17 | 2022-04-29 | 中国矿业大学 | Preparation method and product of coal gangue compound fertilizer |
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