CN109928782A - A kind of method that gangue prepares siliceous fertilizer - Google Patents
A kind of method that gangue prepares siliceous fertilizer Download PDFInfo
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- CN109928782A CN109928782A CN201910346503.7A CN201910346503A CN109928782A CN 109928782 A CN109928782 A CN 109928782A CN 201910346503 A CN201910346503 A CN 201910346503A CN 109928782 A CN109928782 A CN 109928782A
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Abstract
The invention discloses a kind of methods that gangue prepares siliceous fertilizer, it is the following steps are included: 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.The present invention uses gangue for raw material, turns waste into wealth, and reduces the production cost of siliceous fertilizer；Siliceous fertilizer of the invention, lime stone can promote the activation of silica, so that the fertilizer after fertilising, can release a large amount of silicate ion, consequently facilitating plant absorption, promotes plant growth；Using gangue as raw material, belong to natural minerals, after thermal activation and quenching, it can guarantee that the crystalline silicon in mineral is converted into the silicon easily by crop utilization, and simultaneously that other microelements are next to being activated, pass through fertilising, so as to supplement the trace quantity mineral substance elements such as the calcium in soil, iron, aluminium, magnesium, silicon, and gangue is natural minerals, activated use not will cause soil pollution.
Description
Technical field
The present invention relates to the technical field that gangue prepares siliceous fertilizer, method that especially a kind of gangue prepares siliceous fertilizer.
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 further investigation on mineral fertilizer 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 a kind of method that gangue prepares siliceous fertilizer.
The purpose of the present invention is achieved through the following technical solutions: a kind of method that gangue prepares siliceous fertilizer, it include with
Lower step:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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 and the parts by weight of gangue are 20 parts, lime stone 10 ~
15 parts, 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.
Preferably, 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.
Preferably, the granularity of the powder in the S22 after ball mill fine grinding is 160 ~ 250 mesh.
Preferably, the auxiliary agent in the S3 step is alkali metal salt.
Preferably, in the S5 step, mixture is suppressed squarely by molding machine.
Preferably, heating equipment employed in the S6 step is tunnel oven, rotary kiln, chamber kiln, shuttle kiln, trolley
One kind of kiln and microwave kiln.
Preferably, 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.
Preferably, 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.
Preferably, the drying temperature in the S8 is 50 ~ 110 degrees Celsius.
The invention has the following advantages that
1, the method that gangue of the invention prepares siliceous fertilizer, by the way that the siliceous fertilizer of powder shape is made, convenient for siliceous fertilizer packaging, transport and
Fertilising, and use gangue for raw material, turn waste into wealth, can solve the excessive status of existing Piling of Gangue, realizes bastard coal
The new application of stone, and siliceous fertilizer uses gangue for raw material, reduces the cost of raw material, to reduce being produced into for siliceous fertilizer
This；
2, siliceous fertilizer of the invention is added with lime stone, and lime stone can supplement the content of soil middle cover, and lime stone is in high temperature
Lower can also activate to the silica in gangue of effect plays facilitation, accelerates the activation of two sample SiClxs, so that should
Fertilizer can release a large amount of silicon ion after fertilising, consequently facilitating plant absorption, promotes plant growth；
3, natural minerals are belonged to as raw material using gangue, by thermal activation, so that the equal brilliant coating in powder is destroyed,
To become the active material of indefiniteness, after being added in soil, aluminum oxide, calcium oxide, magnesia, di-iron trioxide exist
Its crystalline substance coating is destroyed under high temperature action, thus become active aluminum oxide, calcium oxide, magnesia, di-iron trioxide, and powder
Active aluminum oxide, calcium oxide, magnesia, di-iron trioxide in material can be slowly converting into aluminium ion, calcium ion,
Magnesium ion and iron ion etc., therefore fertilizer is put into soil, it is micro that calcium, iron, aluminium, magnesium, silicon in soil etc. can be supplemented
Mineral element is convenient for plant growth, and gangue is natural minerals, not will cause soil to increase the fertile degree of soil
Pollution.
Specific embodiment
Embodiment one:
A kind of method that gangue prepares siliceous fertilizer, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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
10 parts, 1 part of auxiliary agent, wherein auxiliary agent preferably selects alkali metal salt, and wherein alkali metal oxide is magnesia, calcium oxide, oxidation
It is one kind of sodium, 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 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 heat preservation, it can guarantee the activation effect of powder, by thermal activation, so that the brilliant packet of the silica in powder
It is destroyed under the action of high temperature and lime stone, becomes active silica, and aluminum oxide, calcium oxide in gangue,
Magnesia, di-iron trioxide its crystalline substance coating under high temperature action are destroyed, to become active aluminum oxide, calcium oxide, oxygen
Change magnesium, di-iron trioxide, and active aluminum oxide, calcium oxide, magnesia, the di-iron trioxide in powder in the soil can
It is enough slowly converting to aluminium ion, calcium ion, magnesium ion and iron ion etc., therefore fertilizer is put into soil, soil can be supplemented
The trace quantity mineral substance elements such as calcium, iron, aluminium, magnesium, silicon in earth；And in calcination process, interior carbon in gangue, in air
Oxygen reaction generates carbon dioxide, and carbon dioxide overflows, so that mesoporous and micropore is formed in gangue, to have very big
Specific surface area, by mesoporous and micropore, the moisture content in soil can then be entered in mesoporous and micropore, to improve siliceous fertilizer
Water-retaining property, and mesoporous and micropore can also improve the aeration of soil, to be conducive to plant growth.
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 two after activation
Silica, calcium oxide, magnesia, di-iron trioxide and aluminum oxide etc. have little time to become stable brilliant packet, so as to make
It obtains the powder after activating in S6 and keeps activity, further, after water mist quenching, then condense water mist, form waste water, and
Centralized recovery is carried out to it, and the waste water is delivered to molding equipment, the molding process water of mixture is become, to save
About water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly production.
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.
Embodiment two:
A kind of method that gangue prepares siliceous fertilizer, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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
15 parts, 2 parts of auxiliary agent, wherein auxiliary agent preferably selects alkali metal salt, and alkali metal salt is then magnesium carbonate, calcium carbonate, sodium carbonate, carbon
Sour potassium；
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 heat preservation, it can guarantee the activation effect of powder, by thermal activation, so that the crystalline substance of the silica in powder
Packet is destroyed under the action of high temperature and lime stone, becomes active silica, and aluminum oxide, oxidation in gangue
Calcium, magnesia, di-iron trioxide under high temperature action its crystalline substance coating destroy, thus become active aluminum oxide, calcium oxide,
Magnesia, di-iron trioxide, and the active aluminum oxide, calcium oxide, magnesia, di-iron trioxide in powder are in the soil
It can be slowly converting to aluminium ion, calcium ion, magnesium ion and iron ion etc., therefore fertilizer is put into soil, can be supplemented
The trace quantity mineral substance elements such as calcium, iron, aluminium, magnesium, silicon in soil；And in calcination process, interior carbon in gangue, in air
Oxygen reaction generate carbon dioxide, carbon dioxide overflow so that gangue in formed mesoporous and micropore, thus have very
Big specific surface area, by mesoporous and micropore, the moisture content in soil can then be entered in mesoporous and micropore, to improve siliceous fertilizer
Water-retaining property, and mesoporous and micropore can also improve the aeration of soil, to be conducive to plant growth.
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 two after activation
Silica, calcium oxide, magnesia, di-iron trioxide and aluminum oxide etc. have little time to become stable brilliant packet, so as to make
It obtains the powder after activating in S6 and keeps activity, further, after water mist quenching, then condense water mist, form waste water, and
Centralized recovery is carried out to it, and the waste water is delivered to molding equipment, the molding process water of mixture is become, to save
About water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly production.
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.
Embodiment three:
A kind of method that gangue prepares siliceous fertilizer, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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
10 parts, 2 parts of auxiliary agent, 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 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 heat preservation, it can guarantee the activation effect of powder, by thermal activation, so that the brilliant Bao Gao of the silica in powder
It is destroyed under the action of mild lime stone, becomes active silica, and aluminum oxide, calcium oxide in gangue, oxidation
Magnesium, di-iron trioxide under high temperature action its crystalline substance coating destroy, thus become active aluminum oxide, calcium oxide, magnesia,
Di-iron trioxide, and active aluminum oxide, calcium oxide, magnesia, the di-iron trioxide in powder can delay in the soil
Slow-speed is melted into aluminium ion, calcium ion, magnesium ion and iron ion etc., therefore fertilizer is put into soil, can supplement in soil
The trace quantity mineral substance elements such as calcium, iron, aluminium, magnesium, silicon；And in calcination process, interior carbon in gangue, with the oxygen in air
Reaction generates carbon dioxide, and carbon dioxide overflows, so that mesoporous and micropore is formed in gangue, to have very big ratio
Surface area, by mesoporous and micropore, the moisture content in soil can then be entered in mesoporous and micropore, to improve the water conservation of siliceous fertilizer
Property, and mesoporous and micropore can also improve the aeration of soil, to be conducive to plant growth.
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 two after activation
Silica, calcium oxide, magnesia, di-iron trioxide and aluminum oxide etc. have little time to become stable brilliant packet, so as to make
It obtains the powder after activating in S6 and keeps activity, further, after water mist quenching, then condense water mist, form waste water, and
Centralized recovery is carried out to it, and the waste water is delivered to molding equipment, the molding process water of mixture is become, to save
About water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly production.
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.
Example IV:
A kind of method that gangue prepares siliceous fertilizer, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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
12 parts, 2 parts of auxiliary agent, 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 heat preservation, it can guarantee the activation effect of powder, by thermal activation, so that the brilliant Bao Gao of the silica in powder
It is destroyed under the action of mild lime stone, becomes active silica, and aluminum oxide, calcium oxide in gangue, oxidation
Magnesium, di-iron trioxide under high temperature action its crystalline substance coating destroy, thus become active aluminum oxide, calcium oxide, magnesia,
Di-iron trioxide, and active aluminum oxide, calcium oxide, magnesia, the di-iron trioxide in powder can be slowly converting to
Aluminium ion, calcium ion, magnesium ion and iron ion etc., therefore fertilizer is put into soil, can supplement calcium in soil, iron,
The trace quantity mineral substance elements such as aluminium, magnesium, silicon；And in calcination process, interior carbon, reacts generation with the oxygen in air in gangue
Carbon dioxide, carbon dioxide overflow, so that mesoporous and micropore is formed in gangue, so that there is very big specific surface area,
By mesoporous and micropore, the moisture content in soil can then be entered in mesoporous and micropore, so that the water-retaining property of siliceous fertilizer is improved, and
Mesoporous and micropore can also improve the aeration of soil, to be conducive to plant growth.
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 two after activation
Silica, calcium oxide, magnesia, di-iron trioxide and aluminum oxide etc. have little time to become stable brilliant packet, so as to make
It obtains the powder after activating in S6 and keeps activity, further, after water mist quenching, then condense water mist, form waste water, and
Centralized recovery is carried out to it, and the waste water is delivered to molding equipment, the molding process water of mixture is become, to save
About water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly production.
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.
Embodiment five:
A kind of method that gangue prepares siliceous fertilizer, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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
13 parts, 1.5 parts of auxiliary agent, 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 heat preservation, it can guarantee the activation effect of powder, by thermal activation, so that the brilliant Bao Gao of the silica in powder
It is destroyed under the action of mild lime stone, becomes active silica, and aluminum oxide, calcium oxide in gangue, oxidation
Magnesium, di-iron trioxide under high temperature action its crystalline substance coating destroy, thus become active aluminum oxide, calcium oxide, magnesia,
Di-iron trioxide, and active aluminum oxide, calcium oxide, magnesia, the di-iron trioxide in powder can be slowly converting to
Aluminium ion, calcium ion, magnesium ion and iron ion etc., therefore fertilizer is put into soil, can supplement calcium in soil, iron,
The trace quantity mineral substance elements such as aluminium, magnesium, silicon；And in calcination process, interior carbon, reacts generation with the oxygen in air in gangue
Carbon dioxide, carbon dioxide overflow, so that mesoporous and micropore is formed in gangue, so that there is very big specific surface area,
By mesoporous and micropore, the moisture content in soil can then be entered in mesoporous and micropore, so that the water-retaining property of siliceous fertilizer is improved, and
Mesoporous and micropore can also improve the aeration of soil, to be conducive to plant growth.
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 two after activation
Silica, calcium oxide, magnesia, di-iron trioxide and aluminum oxide etc. have little time to become stable brilliant packet, so as to make
It obtains the powder after activating in S6 and keeps activity, further, after water mist quenching, then condense water mist, form waste water, and
Centralized recovery is carried out to it, and the waste water is delivered to molding equipment, the molding process water of mixture is become, to save
About water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly production.
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.
Embodiment six:
A kind of method that gangue prepares siliceous fertilizer, it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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
13 parts, 1.5 parts of auxiliary agent, 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 heat preservation, it can guarantee the activation effect of powder, by thermal activation, so that the brilliant Bao Gao of the silica in powder
It is destroyed under the action of mild lime stone, becomes active silica, and aluminum oxide, calcium oxide in gangue, oxidation
Magnesium, di-iron trioxide under high temperature action its crystalline substance coating destroy, thus become active aluminum oxide, calcium oxide, magnesia,
Di-iron trioxide, and active aluminum oxide, calcium oxide, magnesia, the di-iron trioxide in powder can be slowly converting to
Aluminium ion, calcium ion, magnesium ion and iron ion etc., therefore fertilizer is put into soil, can supplement calcium in soil, iron,
The trace quantity mineral substance elements such as aluminium, magnesium, silicon；And in calcination process, interior carbon, reacts generation with the oxygen in air in gangue
Carbon dioxide, carbon dioxide overflow, so that mesoporous and micropore is formed in gangue, so that there is very big specific surface area,
By mesoporous and micropore, the moisture content in soil can then be entered in mesoporous and micropore, so that the water-retaining property of siliceous fertilizer is improved, and
Mesoporous and micropore can also improve the aeration of soil, to be conducive to plant growth.
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 two after activation
Silica, calcium oxide, magnesia, di-iron trioxide and aluminum oxide etc. have little time to become stable brilliant packet, so as to make
It obtains the powder after activating in S6 and keeps activity, further, after water mist quenching, then condense water mist, form waste water, and
Centralized recovery is carried out to it, and the waste water is delivered to molding equipment, the molding process water of mixture is become, to save
About water resource, it is thus also avoided that the discharge of waste water realizes environmentally friendly production.
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.
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 (9)
1. a kind of method that gangue prepares siliceous fertilizer, it is characterised in that: it the following steps are included:
S1: raw material test carries out chemical component and material phase analysis to coal shale in brick making, obtains the chemistry of gangue He other raw materials
Ingredient, content and mineral composition；
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 and the parts by weight of gangue are 20 parts, lime stone 10 ~
15 parts, 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.
2. the method that a kind of gangue according to claim 1 prepares siliceous fertilizer, it is characterised in that: in S2 the and S9 step
Include the following steps,
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.
3. the method that a kind of gangue according to claim 2 prepares siliceous fertilizer, it is characterised in that: ball mill in the S22
The granularity of powder after fine grinding is 160 ~ 250 mesh.
4. the method that a kind of gangue according to claim 1 prepares siliceous fertilizer, it is characterised in that: helping in the S3 step
Agent is alkali metal salt.
5. the method that a kind of gangue according to claim 1 prepares siliceous fertilizer, it is characterised in that: in the S5 step, at
Mixture is suppressed squarely by type machine.
6. the method that a kind of gangue according to claim 1 prepares siliceous fertilizer, it is characterised in that: adopted in the S6 step
Heating equipment is one kind of tunnel oven, rotary kiln, chamber kiln, shuttle kiln, car-bottom kiln and microwave kiln.
7. the method that a kind of gangue according to claim 1 prepares siliceous fertilizer, it is characterised in that: in the S6 step, add
When hot, heating rate be 3 ~ 30 DEG C/min, holding temperature: 800 ~ 1300 DEG C, 1 ~ 4h of soaking time.
8. the method that a kind of gangue according to claim 1 prepares siliceous fertilizer, it is characterised in that: in the S7 step, quench
Extra waste water after cold is recycled, and the waste water is used as the moulding process water in S5 step.
9. the method that a kind of gangue according to claim 1 prepares siliceous fertilizer, it is characterised in that: the drying temperature in the S8
Degree is 50 ~ 110 degrees Celsius.
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| CN113582763A (en) * | 2021-08-18 | 2021-11-02 | 中科鼎乾(北京)环保发展有限公司 | Method and system for producing high-silicon compound fertilizer by activating coal gangue |
| CN114752391A (en) * | 2022-04-06 | 2022-07-15 | 水利部牧区水利科学研究所 | Water-retaining material, preparation method thereof and application thereof in soil moisture retention |
| CN114956872A (en) * | 2022-06-28 | 2022-08-30 | 舒新前 | Method for preparing silicon fertilizer by activating coal gangue |
| CN115093290A (en) * | 2022-07-27 | 2022-09-23 | 甘肃巨源达生物科技有限公司 | Method for preparing oil shale semicoke silicon potash fertilizer by hydrothermal method |
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Application publication date: 20190625 |