CN107601926A - One kind is not easy sedimentation type cement formula and its preparation technology - Google Patents
One kind is not easy sedimentation type cement formula and its preparation technology Download PDFInfo
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- CN107601926A CN107601926A CN201710818355.5A CN201710818355A CN107601926A CN 107601926 A CN107601926 A CN 107601926A CN 201710818355 A CN201710818355 A CN 201710818355A CN 107601926 A CN107601926 A CN 107601926A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses one kind to be not easy sedimentation type cement formula and its preparation technology, including the following raw material in parts by weight：Shell, kaolin, gangue, lime stone, flyash, blast-furnace cinder, clay, iron powder, carbide slag, fine sand, polypropylene fibre, hydrogen peroxide, magnesium chloride, lime-ash, bath stone, manganese slag, desulfurated plaster, modifying agent and composite concrete grinding-assistant reinforcing agent part；The preparation method of the present invention comprises the following steps：Prepare shell lime powder, moisture evaporation, raw material dehydration, preheat, burn till and grinding calcining；The present invention with the addition of the modifying agent for increasing its intensity, improve cement performance, and stability is good, cost is low, and the feature of environmental protection is good, resource is saved, it is not easy to precipitate, cement unit-hour output 15~30% is improved by composite concrete grinding-assistant reinforcing agent, improves each age strength of cement, manufacture craft is simple, and cement quality is good.
Description
Technical field
The present invention relates to cement technology field, specially one kind is not easy sedimentation type cement formula and its preparation technology.
Background technology
Cement, powdery hydraulicity inorganic coagulation material.Add water stir after into slurry, can harden in atmosphere or in water
Preferably hardening, and can the materials such as sand, stone is cemented together securely.One word is developed by Latin, is rubble and piece
The meaning of stone.The history of cement can trace back to earliest 5000 before Chinese Qin'an the earth people from gulf, they have laid the similar modern times
The ground of cement.The lime and the mixture of volcanic ash that later roman uses under construction, this mixture and modern times
Lime pozzolanic cement is much like.The concrete made of its cementing rubble, not only intensity is higher after hardening, and can also resist
The erosion of fresh water or brackish water.For a long time, it is as a kind of important binder materials, be widely used in civil construction, water conservancy,
The engineerings such as national defence, in cement production process, often produce 1 ton of portland cement and at least want 3 tons of materials of grinding, including various raw materials,
Fuel, clinker, compound, gypsum, according to statistics, the power that dry cement production line grinding operation needs to consume account for full factory's power
More than 60%, wherein raw grinding accounts for more than 30%, and coal mill accounts for about 3%, and cement grinding accounts for 40%.Therefore, reasonable selection
Milling equipment and technological process, Optimizing Process Parameters, correct operation, operation system is controlled, to ensureing product quality, reducing energy consumption
It is significant.
So how to design one kind is not easy sedimentation type cement formula and its preparation technology, turn into what we currently to be solved
Problem.
The content of the invention
The present invention provides one kind and is not easy sedimentation type cement formula and its preparation technology, with the addition of the modification for increasing its intensity
Agent, cement performance is improved, and stability is good, cost is low, and the feature of environmental protection is good, has saved resource, is not easy to precipitate, passes through composite cement
Grinding aid reinforcing agent improves cement unit-hour output 15~30%, improves each age strength of cement, manufacture craft is simple, cement quality
It is good, can effectively solve the problems, such as in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：One kind is not easy sedimentation type cement formula, including according to
The following raw material of parts by weight meter：Shell 10-20 parts, kaolin 10-20 parts, gangue 30-40 parts, lime stone 10-20 parts, powder
Coal ash 5-8 parts, blast-furnace cinder 2-4 parts, clay 6-9 parts, iron powder 2-4 parts, carbide slag 10-30 parts, fine sand 5-15 parts, polypropylene are fine
Tie up 5-15 parts, hydrogen peroxide 1-10 parts, magnesium chloride 10-20 parts, lime-ash 10-30 parts, bath stone 10-30 parts, manganese slag 12-15 parts, desulfurization
1 part of gypsum 5-9 parts, modifying agent 5-8 parts and composite concrete grinding-assistant reinforcing agent.
According to above-mentioned technical proposal, the hydrogen peroxide is Solid hydrogen peroxide, and preparation method is：(3.5-4.5) in molar ratio:
(1.5-2.5):(0.5-1.5) prepares sodium sulphate, hydrogen peroxide and sodium chloride, by sodium sulphate and sodium chloride mixture in kneader
Middle mediate is mixed to without caking, obtains mixture a；Divide in 40-90min 3-4 times and hydrogen peroxide is sprayed into said mixture, together
When, continue by the compound of sodium sulphate, hydrogen peroxide and sodium chloride three mediate to mix to without the mixture b that lumps to obtain；Will
The above-mentioned gained mixtures of mixture a and mixture b are placed in baking oven, in 35-50 DEG C of dry 30-60min, are got product.
According to above-mentioned technical proposal, the modifying agent is a kind of or more in alum, melmac, alum
Kind.
According to above-mentioned technical proposal, the preparation method of the composite concrete grinding-assistant reinforcing agent is：First will be poly- by proportioning
Polymers of carboxylic acid, triisopropanolamine, triethanolamine, propane diols, ethylene glycol are added in reaction vessel, are heated to 50-60 DEG C of stirring
0.5-1.5 hours make uniformly to mix, and No. 1 mixture is made；Exciting agent, calcium formate and adjustable solidification agent are added to the water by proportioning again,
Carry out being sufficiently stirred 0.5-1.0 hours at 50-60 DEG C, No. 2 mixtures are made；Then No. 1 mixture is maintained 50-60 DEG C,
No. 2 mixtures are poured slowly into while stirring, are sufficiently stirred 0.5-1.5 hours, that is, obtain being not easy precipitating, brown, liquid
Composite concrete grinding-assistant reinforcing agent of the present invention.
One kind is not easy sedimentation type cement preparation technology, comprises the following steps：
1) shell lime powder is prepared：Shell is put into high temperature furnace and calcined, is incubated, is cooled to room temperature, takes out, is standby；
2) moisture evaporation：By above-mentioned shell 10-20 parts, gangue 30-40 parts, lime stone 10-20 parts, flyash 5-8 parts,
Blast-furnace cinder 2-4 parts, iron powder 2-4 parts, carbide slag 10-30 parts, fine sand 5-15 parts, lime-ash 10-30 parts, bath stone 10-30 parts and manganese
Slag 12-15 parts, which are sent in vapourizing furnace, evaporates, and free moisture gradually evaporates with temperature of charge, when temperature is increased to 100-150
DEG C when, free moisture is all excluded in raw material；
3) raw material dehydration：By above-mentioned clay 6-9 parts and kaolin 10-20 parts, add in dewaterer and be dehydrated, temperature rises to
At 450 DEG C, kaolin sloughs chemical bonding water；Clay sloughs chemical bonding water when rising to 900 DEG C -950 DEG C, and amorphous substance is again
It is changed into crystal, releases heat；
4) preheat：By the material after above-mentioned dehydration by evaporation and polypropylene fibre 5-15 parts, hydrogen peroxide 1-10 parts, magnesium chloride
10-20 parts, desulfurated plaster 5-9 parts and modifying agent 5-8 parts are preheated, completed by preheater, instead of rotary kiln part work(
Can, reach and shorten back kiln length, while make to enter promoting the circulation of qi material heat transfer process in kiln with stacking states, move on in preheater in suspension
Carried out under state, raw material is sufficiently mixed with the hot gases discharged in kiln；
5) burn till：By the material after preheating, carbonate is further decomposed rapidly and occurred a series of solid in rotary kiln
Phase reaction, generate the mineral in clinker；As mineral can become liquid phase when temperature of charge rise is near, it is dissolved in liquid phase
A large amount of clinkers are generated with reaction is carried out；After sinter leaching, temperature starts to reduce；Finally rotary kiln is unloaded by cement clinker cooler
The temperature that the high temperature chamotte gone out is cooled to downstream conveying, depots and cement grinding mill can bear, while reclaim the aobvious of high temperature chamotte
Heat, improve the thermal efficiency and clinker quality of system；
6) grinding is calcined：Material after burning till adds composite concrete grinding-assistant reinforcing agent grinding to suitable granularity and formed
Certain grain composition, cement is obtained after 900-1000 DEG C of calcining.
According to above-mentioned technical proposal, milling to fineness 0.08mm square hole screens are tailed over less than 3% in the step 5).
According to above-mentioned technical proposal, maximum temperature when shell is calcined in the step 1) is 600 DEG C.
Compared with prior art, beneficial effects of the present invention：The present invention with the addition of the modifying agent for increasing its intensity, improve water
Mud performance, and stability is good, cost is low, and the feature of environmental protection is good, has saved resource, is not easy to precipitate, and is strengthened by composite cement grinding aid
Agent improves cement unit-hour output 15~30%, improves each age strength of cement, manufacture craft is simple, and cement quality is good.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.
In the accompanying drawings：
Fig. 1 is the preparation flow figure of the present invention.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1：As shown in figure 1, the present invention, which provides one kind, is not easy sedimentation type cement formula, including in parts by weight
The following raw material：It is 10 parts of shell, 10 parts of kaolin, 30 parts of gangue, 10 parts of lime stone, 5 parts of flyash, 2 parts of blast-furnace cinder, viscous
Soil 6 parts, 2 parts of iron powder, 10 parts of carbide slag, 5 parts of fine sand, 5 parts of polypropylene fibre, 1 part of hydrogen peroxide, 10 parts of magnesium chloride, 10 parts of lime-ash,
1 part of 10 parts of bath stone, 12 parts of manganese slag, 5 parts of desulfurated plaster, 5 parts of modifying agent and composite concrete grinding-assistant reinforcing agent.
According to above-mentioned technical proposal, the hydrogen peroxide is Solid hydrogen peroxide, and preparation method is：(3.5-4.5) in molar ratio:
(1.5-2.5):(0.5-1.5) prepares sodium sulphate, hydrogen peroxide and sodium chloride, by sodium sulphate and sodium chloride mixture in kneader
Middle mediate is mixed to without caking, obtains mixture a；Divide in 40-90min 3-4 times and hydrogen peroxide is sprayed into said mixture, together
When, continue by the compound of sodium sulphate, hydrogen peroxide and sodium chloride three mediate to mix to without the mixture b that lumps to obtain；Will
The above-mentioned gained mixtures of mixture a and mixture b are placed in baking oven, in 35-50 DEG C of dry 30-60min, are got product.
According to above-mentioned technical proposal, the modifying agent is a kind of or more in alum, melmac, alum
Kind.
According to above-mentioned technical proposal, the preparation method of the composite concrete grinding-assistant reinforcing agent is：First will be poly- by proportioning
Polymers of carboxylic acid, triisopropanolamine, triethanolamine, propane diols, ethylene glycol are added in reaction vessel, are heated to 50-60 DEG C of stirring
0.5-1.5 hours make uniformly to mix, and No. 1 mixture is made；Exciting agent, calcium formate and adjustable solidification agent are added to the water by proportioning again,
Carry out being sufficiently stirred 0.5-1.0 hours at 50-60 DEG C, No. 2 mixtures are made；Then No. 1 mixture is maintained 50-60 DEG C,
No. 2 mixtures are poured slowly into while stirring, are sufficiently stirred 0.5-1.5 hours, that is, obtain being not easy precipitating, brown, liquid
Composite concrete grinding-assistant reinforcing agent of the present invention.
One kind is not easy sedimentation type cement preparation technology, comprises the following steps：
1) shell lime powder is prepared：Shell is put into high temperature furnace and calcined, is incubated, is cooled to room temperature, takes out, is standby；
2) moisture evaporation：By above-mentioned shell 10-20 parts, gangue 30-40 parts, lime stone 10-20 parts, flyash 5-8 parts,
Blast-furnace cinder 2-4 parts, iron powder 2-4 parts, carbide slag 10-30 parts, fine sand 5-15 parts, lime-ash 10-30 parts, bath stone 10-30 parts and manganese
Slag 12-15 parts, which are sent in vapourizing furnace, evaporates, and free moisture gradually evaporates with temperature of charge, when temperature is increased to 100-150
DEG C when, free moisture is all excluded in raw material；
3) raw material dehydration：By above-mentioned clay 6-9 parts and kaolin 10-20 parts, add in dewaterer and be dehydrated, temperature rises to
At 450 DEG C, kaolin sloughs chemical bonding water；Clay sloughs chemical bonding water when rising to 900 DEG C -950 DEG C, and amorphous substance is again
It is changed into crystal, releases heat；
4) preheat：By the material after above-mentioned dehydration by evaporation and polypropylene fibre 5-15 parts, hydrogen peroxide 1-10 parts, magnesium chloride
10-20 parts, desulfurated plaster 5-9 parts and modifying agent 5-8 parts are preheated, completed by preheater, instead of rotary kiln part work(
Can, reach and shorten back kiln length, while make to enter promoting the circulation of qi material heat transfer process in kiln with stacking states, move on in preheater in suspension
Carried out under state, raw material is sufficiently mixed with the hot gases discharged in kiln；
5) burn till：By the material after preheating, carbonate is further decomposed rapidly and occurred a series of solid in rotary kiln
Phase reaction, generate the mineral in clinker；As mineral can become liquid phase when temperature of charge rise is near, it is dissolved in liquid phase
A large amount of clinkers are generated with reaction is carried out；After sinter leaching, temperature starts to reduce；Finally rotary kiln is unloaded by cement clinker cooler
The temperature that the high temperature chamotte gone out is cooled to downstream conveying, depots and cement grinding mill can bear, while reclaim the aobvious of high temperature chamotte
Heat, improve the thermal efficiency and clinker quality of system；
6) grinding is calcined：Material after burning till adds composite concrete grinding-assistant reinforcing agent grinding to suitable granularity and formed
Certain grain composition, cement is obtained after 900-1000 DEG C of calcining.
According to above-mentioned technical proposal, milling to fineness 0.08mm square hole screens are tailed over less than 3% in the step 5).
According to above-mentioned technical proposal, maximum temperature when shell is calcined in the step 1) is 600 DEG C.
Embodiment 2：As shown in figure 1, the present invention, which provides one kind, is not easy sedimentation type cement formula, including in parts by weight
The following raw material：It is 20 parts of shell, 20 parts of kaolin, 40 parts of gangue, 20 parts of lime stone, 8 parts of flyash, 4 parts of blast-furnace cinder, viscous
9 parts of soil, 4 parts of iron powder, 30 parts of carbide slag, 15 parts of fine sand, 15 parts of polypropylene fibre, 10 parts of hydrogen peroxide, 20 parts of magnesium chloride, lime-ash 30
Part, 30 parts of bath stone, 15 parts of manganese slag, 9 parts of desulfurated plaster, 8 parts of modifying agent and 1 part of composite concrete grinding-assistant reinforcing agent.
According to above-mentioned technical proposal, the hydrogen peroxide is Solid hydrogen peroxide, and preparation method is：(3.5-4.5) in molar ratio:
(1.5-2.5):(0.5-1.5) prepares sodium sulphate, hydrogen peroxide and sodium chloride, by sodium sulphate and sodium chloride mixture in kneader
Middle mediate is mixed to without caking, obtains mixture a；Divide in 40-90min 3-4 times and hydrogen peroxide is sprayed into said mixture, together
When, continue by the compound of sodium sulphate, hydrogen peroxide and sodium chloride three mediate to mix to without the mixture b that lumps to obtain；Will
The above-mentioned gained mixtures of mixture a and mixture b are placed in baking oven, in 35-50 DEG C of dry 30-60min, are got product.
According to above-mentioned technical proposal, the modifying agent is a kind of or more in alum, melmac, alum
Kind.
According to above-mentioned technical proposal, the preparation method of the composite concrete grinding-assistant reinforcing agent is：First will be poly- by proportioning
Polymers of carboxylic acid, triisopropanolamine, triethanolamine, propane diols, ethylene glycol are added in reaction vessel, are heated to 50-60 DEG C of stirring
0.5-1.5 hours make uniformly to mix, and No. 1 mixture is made；Exciting agent, calcium formate and adjustable solidification agent are added to the water by proportioning again,
Carry out being sufficiently stirred 0.5-1.0 hours at 50-60 DEG C, No. 2 mixtures are made；Then No. 1 mixture is maintained 50-60 DEG C,
No. 2 mixtures are poured slowly into while stirring, are sufficiently stirred 0.5-1.5 hours, that is, obtain being not easy precipitating, brown, liquid
Composite concrete grinding-assistant reinforcing agent of the present invention.
One kind is not easy sedimentation type cement preparation technology, comprises the following steps：
1) shell lime powder is prepared：Shell is put into high temperature furnace and calcined, is incubated, is cooled to room temperature, takes out, is standby；
2) moisture evaporation：By above-mentioned shell 10-20 parts, gangue 30-40 parts, lime stone 10-20 parts, flyash 5-8 parts,
Blast-furnace cinder 2-4 parts, iron powder 2-4 parts, carbide slag 10-30 parts, fine sand 5-15 parts, lime-ash 10-30 parts, bath stone 10-30 parts and manganese
Slag 12-15 parts, which are sent in vapourizing furnace, evaporates, and free moisture gradually evaporates with temperature of charge, when temperature is increased to 100-150
DEG C when, free moisture is all excluded in raw material；
3) raw material dehydration：By above-mentioned clay 6-9 parts and kaolin 10-20 parts, add in dewaterer and be dehydrated, temperature rises to
At 450 DEG C, kaolin sloughs chemical bonding water；Clay sloughs chemical bonding water when rising to 900 DEG C -950 DEG C, and amorphous substance is again
It is changed into crystal, releases heat；
4) preheat：By the material after above-mentioned dehydration by evaporation and polypropylene fibre 5-15 parts, hydrogen peroxide 1-10 parts, magnesium chloride
10-20 parts, desulfurated plaster 5-9 parts and modifying agent 5-8 parts are preheated, completed by preheater, instead of rotary kiln part work(
Can, reach and shorten back kiln length, while make to enter promoting the circulation of qi material heat transfer process in kiln with stacking states, move on in preheater in suspension
Carried out under state, raw material is sufficiently mixed with the hot gases discharged in kiln；
5) burn till：By the material after preheating, carbonate is further decomposed rapidly and occurred a series of solid in rotary kiln
Phase reaction, generate the mineral in clinker；As mineral can become liquid phase when temperature of charge rise is near, it is dissolved in liquid phase
A large amount of clinkers are generated with reaction is carried out；After sinter leaching, temperature starts to reduce；Finally rotary kiln is unloaded by cement clinker cooler
The temperature that the high temperature chamotte gone out is cooled to downstream conveying, depots and cement grinding mill can bear, while reclaim the aobvious of high temperature chamotte
Heat, improve the thermal efficiency and clinker quality of system；
6) grinding is calcined：Material after burning till adds composite concrete grinding-assistant reinforcing agent grinding to suitable granularity and formed
Certain grain composition, cement is obtained after 900-1000 DEG C of calcining.
According to above-mentioned technical proposal, milling to fineness 0.08mm square hole screens are tailed over less than 3% in the step 5).
According to above-mentioned technical proposal, maximum temperature when shell is calcined in the step 1) is 600 DEG C.
Based on above-mentioned, it is an advantage of the current invention that with the addition of the modifying agent for increasing its intensity, cement performance is improved, and surely
Qualitative good, cost is low, and the feature of environmental protection is good, has saved resource, is not easy to precipitate, and cement is improved by composite concrete grinding-assistant reinforcing agent
Unit-hour output 15~30%, each age strength of cement is improved, manufacture craft is simple, and cement quality is good.
Finally it should be noted that：The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, to the greatest extent
The present invention is described in detail with reference to the foregoing embodiments for pipe, and for those skilled in the art, it still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., it should be included in the guarantor of the present invention
Within the scope of shield.
Claims (7)
1. one kind is not easy sedimentation type cement formula, it is characterised in that：Including the following raw material in parts by weight：Shell 10-
20 parts, kaolin 10-20 parts, gangue 30-40 parts, lime stone 10-20 parts, flyash 5-8 parts, blast-furnace cinder 2-4 parts, clay
6-9 parts, iron powder 2-4 parts, carbide slag 10-30 parts, fine sand 5-15 parts, polypropylene fibre 5-15 parts, hydrogen peroxide 1-10 parts, magnesium chloride
10-20 parts, lime-ash 10-30 parts, bath stone 10-30 parts, manganese slag 12-15 parts, desulfurated plaster 5-9 parts, modifying agent 5-8 parts and compound
1 part of cement grinding aid reinforcing agent.
2. one kind according to claim 1 is not easy sedimentation type cement formula, it is characterised in that：The hydrogen peroxide is that solid is double
Oxygen water, preparation method are：(3.5-4.5) in molar ratio:(1.5-2.5):(0.5-1.5) prepares sodium sulphate, hydrogen peroxide and chlorine
Change sodium, sodium sulphate and sodium chloride mixture are mediated into mixing to without caking in kneader, obtain mixture a；In 40-90min
Divide 3-4 times and hydrogen peroxide is sprayed into said mixture, meanwhile, continue answering sodium sulphate, hydrogen peroxide and sodium chloride three
Compound mediate and mixed to without the mixture b that lumps to obtain；The above-mentioned gained mixtures of mixture a and mixture b are placed in baking oven,
In 35-50 DEG C of dry 30-60min, get product.
3. one kind according to claim 1 is not easy sedimentation type cement formula, it is characterised in that：The modifying agent is aluminum sulfate
It is one or more in potassium, melmac, alum.
4. one kind according to claim 1 is not easy sedimentation type cement formula, it is characterised in that：The composite cement grinding aid
The preparation method of reinforcing agent is：Proportioning is pressed first by co-poly carboxylic acid, triisopropanolamine, triethanolamine, propane diols, ethylene glycol
Add reaction vessel in, be heated to 50-60 DEG C stirring 0.5-1.5 hours make uniformly to mix, No. 1 mixture is made；Again by proportioning
Exciting agent, calcium formate and adjustable solidification agent are added to the water, carry out being sufficiently stirred 0.5-1.0 hours at 50-60 DEG C, No. 2 mixing are made
Thing；Then No. 1 mixture is maintained 50-60 DEG C, is poured slowly into No. 2 mixtures while stirring, it is small to be sufficiently stirred 0.5-1.5
When, that is, obtain being not easy composite concrete grinding-assistant reinforcing agent of the present invention precipitate, brown, liquid.
5. one kind is not easy sedimentation type cement preparation technology, it is characterised in that：Comprise the following steps：
1) shell lime powder is prepared：Shell is put into high temperature furnace and calcined, is incubated, is cooled to room temperature, takes out, is standby；
2) moisture evaporation：By above-mentioned shell 10-20 parts, gangue 30-40 parts, lime stone 10-20 parts, flyash 5-8 parts, blast furnace
Slag 2-4 parts, iron powder 2-4 parts, carbide slag 10-30 parts, fine sand 5-15 parts, lime-ash 10-30 parts, bath stone 10-30 parts and manganese slag 12-
15 parts are sent in vapourizing furnace and evaporate, and free moisture gradually evaporates with temperature of charge, when temperature is increased to 100-150 DEG C,
Free moisture is all excluded in raw material；
3) raw material dehydration：By above-mentioned clay 6-9 parts and kaolin 10-20 parts, add in dewaterer and be dehydrated, temperature rises to 450
DEG C when, kaolin sloughs chemical bonding water；Clay sloughs chemical bonding water when rising to 900 DEG C -950 DEG C, and amorphous substance turns again
It is changed into crystal, releases heat；
4) preheat：By the material after above-mentioned dehydration by evaporation and polypropylene fibre 5-15 parts, hydrogen peroxide 1-10 parts, magnesium chloride 10-
20 parts, desulfurated plaster 5-9 parts and modifying agent 5-8 parts are preheated, completed by preheater, instead of rotary kiln partial function,
Reach and shorten back kiln length, while make to enter promoting the circulation of qi material heat transfer process in kiln with stacking states, move on in preheater in suspended state
Lower progress, enables raw material to be sufficiently mixed with the hot gases discharged in kiln；
5) burn till：By the material after preheating, carbonate further decomposes rapidly in rotary kiln and that a series of solid phase occurs is anti-
Should, generate the mineral in clinker；As mineral can become liquid phase when temperature of charge rise is near, it is dissolved in liquid phase and enters
Row reaction generates a large amount of clinkers；After sinter leaching, temperature starts to reduce；Finally rotary kiln is drawn off by cement clinker cooler
The temperature that high temperature chamotte is cooled to downstream conveying, depots and cement grinding mill can bear, while the sensible heat of high temperature chamotte is reclaimed, carry
The thermal efficiency and clinker quality of high system；
6) grinding is calcined：Material after burning till adds composite concrete grinding-assistant reinforcing agent grinding to suitable granularity and formed necessarily
Grain composition, through 900-1000 DEG C calcining after obtain cement.
6. one kind according to claim 2 is not easy sedimentation type cement preparation technology, it is characterised in that：Ground in the step 5)
Powder to fineness 0.08mm square hole screens are tailed over less than 3%.
7. one kind according to claim 2 is not easy sedimentation type cement preparation technology, it is characterised in that：Shellfish in the step 1)
Maximum temperature when shell is calcined is 600 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231858A (en) * | 2018-11-14 | 2019-01-18 | 四川海沛环保科技有限公司 | A kind of pretreatment of electrolytic manganese residues and the innoxious and application technology as the second resource that concrete is combined with composite admixture is made |
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| CN101948268A (en) * | 2010-10-12 | 2011-01-19 | 衡阳市银利实业有限公司 | Composite concrete grinding-assistant reinforcing agent |
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| CN106145728A (en) * | 2016-06-29 | 2016-11-23 | 颜红英 | Modified cement formula |
| CN106348687A (en) * | 2016-08-25 | 2017-01-25 | 北海金匠水泥制品有限责任公司 | Environment-friendly masonry cement |
| CN106587670A (en) * | 2016-12-13 | 2017-04-26 | 杨文科 | Highly-durable cement and production method thereof |
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| CN109231858A (en) * | 2018-11-14 | 2019-01-18 | 四川海沛环保科技有限公司 | A kind of pretreatment of electrolytic manganese residues and the innoxious and application technology as the second resource that concrete is combined with composite admixture is made |
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