CN106630705B - Chalk prepares Raw Material System - Google Patents
Chalk prepares Raw Material System Download PDFInfo
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- CN106630705B CN106630705B CN201510710601.6A CN201510710601A CN106630705B CN 106630705 B CN106630705 B CN 106630705B CN 201510710601 A CN201510710601 A CN 201510710601A CN 106630705 B CN106630705 B CN 106630705B
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Abstract
The present invention relates to a kind of chalks to prepare cement slurry system, more particularly to a kind of process system that raw material are prepared in fine-powdered and the higher chalk material of moisture, including kiln system cooler, air-introduced machine, hot-blast stove, kiln system preheater, drying crusher, grinding powder selection device, dust-precipitator；In technical solution of the present invention, according to the physical property of chalk and auxiliary material, the efficient grinding function of function and grinding device is broken up in the drying for giving full play to drying crusher；Chalk high efficiency drying is broken up in realization, while to the crushing of auxiliary block material, drying, realizing the efficient preparation process of raw material, is that a kind of more energy-efficient chalk prepares Raw Material System.
Description
Technical field
The present invention relates to a kind of chalks to prepare cement slurry system, more particularly to one kind is in fine-powdered and moisture is higher white
Chalk material prepares the process systems of raw material.
Background technique
Chalk is also known as carclazyte powder, is a kind of deposit of fine calcium carbonate, is the mutation of calcite.At of structure chalk
The ball algae in stone source is a kind of vegetal Flagellata, it has two isometric flagellums, and body is 3~35 micro- in spherical size
Rice is exactly coccolith in a large amount of small lime mass shells of its cell surface covering, is the oblate shape or flat ellipse of 1~11 micron of size
Round shape has horn-like protrusion sometimes.On seawater, adrift many minimum animal and plants, wherein have it is a kind of be known as it is " more
The unicellular animal of blastopore ", what the shell of these biologies was made of lime, after these organisms die, they are extremely
Small body sinks to seabed, and if things go on like this, gradually bonding forms chalk or chalky soil.Due to the various movements of earth surface,
Those original underwater soils are often made to become land, the chalk soil layer in seabed, which is lifted, originally has moved.
The main component of chalk is calcium carbonate, and calcium oxide content is the natural good original for producing cement generally 50% or more
Material.For chalk in addition to being applied to cement industry, it is its relatively conventional application that chalk, which is made,.Chalk is generally formed in ocean, this
Body particle is very thin, and it is also smaller than the raw meal powder of calcining cement clinker that rear average grain diameter is broken up in drying, it is basic do not have to continue it is levigate
Meet the requirement of cement slurry, but often containing more impurity such as soil, sand in chalk, these particles are also relatively thicker, need
Grinding is selected and is subject to, the requirement of raw material granularity when meeting processing.
Chalk is generally exploited from mine working, and moisture content is larger, generally 20~40%, and has certain viscosity.?
The ground such as Europe were mainly ground using wet process to produce cement in the past, with gradualling mature for novel dry production cement industry,
Its all technical is substantially better than wet process technique, and wet production cement industry is gradually eliminated.Water content is higher and thin
Degree and thinner chalk need drying that dry powder-shaped material is made, could apply on new dry cement technology to prepare cement
Clinker.
Material higher for moisture, ball mill are difficult to meet the requirement of drying, and it is simultaneous to complete to dry to generally use Vertical Mill
Powder-grinding process；But for fine powder, the powder abrasive bed of Vertical Mill is difficult to stable operation；The main effect of Vertical Mill is grinding, by block
Abrasive lapping is granular material, and for the fine powder that need to only break up without further crushing, Vertical Mill is obviously improper, and wastes powder
Grind energy.Raw material are made of calcareous raw material, siliceous raw material, aluminum raw material, ferriferous raw material etc. according to certain rate value and ratio, and
Raw material grinding after combining ingredient is satisfactory powdery dry material, can be in subsequent new dry process for cement production
It is fired into clinker.
When the calcareous raw material of raw material uses chalk, other several raw materials need usually based on block material by powder
Mill apparatus is by these block material grinding powdering materials, past if taking the technology of traditional first ingredient grinding again at this time
Toward the milling equipment for needing selection very big, and 80% or so the chalk for accounting for raw material composition does not need to crush, and only need to break up, dry
, other block materials less in raw material component accounting example take separate grinding, then again with the whiting individually dried
Body carries out being mixed into raw meal powder, can greatly reduce the specification of grinding device, can less equipment construction investment and fortune
The production costs such as row power consumption, equipment attrition.
The present invention is exactly in order to solve the above problem: by the drying of high-moisture chalk, breaks up, by block material grinding at fine powder,
It is standby for the different material implementation division of labour, it then carries out being prepared by mixing into cement slurry, is a kind of more economical reasonable raw material system
Standby process system.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of by the drying of high-moisture chalk, breaks up, by block feed powder
Fine powder is worn into, standby for the different material implementation division of labour, the one kind for then carrying out being prepared by mixing into cement slurry is more economical rationally
Chalk prepare Raw Material System.
In order to solve the above technical problems, the present invention realizes as follows: it designs a kind of chalk and prepares Raw Material System,
Including kiln system cooler, air-introduced machine, hot-blast stove, kiln system preheater, drying crusher, grinding powder selection device, dust-precipitator；Its
Be characterized in that: the hot waste gas outlet of kiln system cooler divides two-way, wherein be connected all the way with the first air-introduced machine, the first air-introduced machine
Air outlet be connected with the air intake vent of hot-blast stove；The another way is connected with the air intake vent being arranged in the middle part of hot-blast stove；Kiln
System warm-up device is connected with the air intake vent of the second air-introduced machine, and the air outlet of the second air-introduced machine divides two-way, the first via and hot-blast stove
Air outlet be connected, the second tunnel is connected with grinding powder selection device；The hot-blast stove air outlet and drying crusher entrance phase
Connection；Drying crusher outlet is connected with grinding powder selection device；The outlet of grinding powder selection device fine powder is connected with dust-precipitator.
As the first embodiment of the invention, such as Fig. 1, the grinding powder selection device is filled by the first powder concentrator, grinding
It sets and is formed with the second powder concentrator；The drying crusher outlet is connected with the first powder concentrator entrance；Second air inducing
The second road hot gas being discharged in the air outlet of machine is connected with grinding device entrance；Grinding device outlet and the second powder concentrator entrance
It is connected；It is connected after the outlet of first powder concentrator fine powder is in parallel with the outlet of the second powder concentrator fine powder with dust-precipitator；First powder concentrator
It is connected after coarse powder outlet is in parallel with the outlet of the second powder concentrator coarse powder with grinding device entrance 8-1.
As second of embodiment of the invention, such as Fig. 2, the grinding powder selection device is by the first powder concentrator and Vertical Mill group
At；The drying crusher outlet is connected with the first powder concentrator entrance；It is discharged in the air outlet of second air-introduced machine
The second road hot gas be connected with Vertical Mill entrance；First powder concentrator fine powder outlet it is in parallel with the outlet of the fine powder of Vertical Mill after with dust-precipitator
It is connected；The outlet of first powder concentrator coarse powder is connected with the entrance of Vertical Mill.
As the third embodiment of the invention, such as Fig. 3, the grinding powder selection device by grinding device, elevator with
Public powder concentrator composition；To be improved on the basis of the first embodiment of the invention at this time, by the first powder concentrator with
Second powder concentrator merges, and forms a public powder concentrator, the lower part of public powder concentrator is equipped with major ingredient entrance and coarse powder exports, thereon
Portion is equipped with auxiliary material entrance and fine powder exports；And elevator is added in grinding device exit；The i.e. described drying crusher goes out
Mouth is connected with the major ingredient entrance of the public powder concentrator lower part；The the second tunnel heat flowed out in the air outlet of second air-introduced machine
Gas is connected by pipeline with grinding device entrance；Grinding device outlet is connected with the feed end of elevator；Elevator goes out
Material end is connected with auxiliary material entrance set by public powder concentrator top；The fine powder on public powder concentrator top exports and dust-precipitator
It is connected；The coarse powder outlet of public powder concentrator lower part is connected with grinding device entrance.
In order to emit the flue gas in dust-precipitator, the dust-precipitator is connected with blower；Blower is connected with chimney
It is logical.
In order to preferably adjust and control each road drying hot blast rate, the is additionally provided between the hot-blast stove and drying crusher
One motor-driven valve；The second motor-driven valve is equipped between second air-introduced machine and hot-blast stove；Second air-introduced machine selects powder to fill with grinding
Third motor-driven valve is equipped between setting.
When grinding powder selection device be heretofore described first embodiment when, i.e., grinding powder selection device by the first powder concentrator,
When grinding device and the second powder concentrator form, major ingredient --- chalk dry in drying crusher be crushed after, powder is selected in entrance first
Machine；After the first powder concentrator selects powder, fine powder is exported from the first powder concentrator fine powder and is discharged, and coarse powder is exported from the first powder concentrator coarse powder and arranged
Out, into carrying out grinding in grinding device；Will auxiliary material feed grinding device in carry out grinding, the auxiliary material after grinding into
Enter after carrying out selecting powder in the second powder concentrator, fine powder is exported from the second powder concentrator fine powder and is discharged, with the first powder concentrator fine powder exit
The major ingredient fine powder of discharge is in parallel latter same into dust-precipitator；Coarse powder is exported from the second powder concentrator coarse powder and is discharged, and returns to grinding device
Carry out circulation grinding.
When grinding powder selection device be heretofore described second embodiment when, i.e., grinding powder selection device by the first powder concentrator with
Vertical Mill composition, major ingredient --- chalk dry in drying crusher be crushed after, into the first powder concentrator；Powder is selected through the first powder concentrator
Afterwards, fine powder is exported from the first powder concentrator fine powder and is discharged, and coarse powder is exported from the first powder concentrator coarse powder and is discharged, and carries out powder into Vertical Mill
Mill；Auxiliary material feeding Vertical Mill is subjected to grinding, Vertical Mill top is entered back into after grinding and carries out selecting powder, fine powder is exported from Vertical Mill fine powder
It takes out of with the wind, it is in parallel with the major ingredient fine powder that the first powder concentrator fine powder exit is taken out of latter same into dust-precipitator；Coarse powder is in Vertical Mill
Inside carry out circulation grinding.
The positive effect of the present invention: it in technical solution of the present invention, provides the more economical reasonable chalk of one kind and prepares raw material
System, the system have the following characteristics that
1, complete high-moisture chalk using drying and break up the higher drying crusher of efficiency (proportion is 80% or so)
It dries and breaks up, the grinding and powder of the auxiliary material with fewer (proportion is 20% or so) are completed using small-sized grinding device
Preparation, not only improves drying efficiency and mill efficiency, but also reduce system power consumption and heat consumption.
2, realize that preheater exhaust gas makes full use of with exhaust gas in kiln system cooler.
3, hot gas is supplied oxygen using the high-temp waste gas of kiln system cooler as the burning of hot-blast stove, improves the flue gas of hot-blast stove
Temperature reduces subsequent exhaust-gas treatment amount to improve the drying efficiency of drying crusher.
4, by the grinding device of the coarse powder feeding auxiliary material of the first powder concentrator, the Matter Transfer of drying crusher is eliminated
Doses reduces the material handling capacity of drying crusher, and then improves the drying of drying crusher and break up efficiency.
Detailed description of the invention
Understand to make the objectives, technical solutions, and advantages of the present invention clearer, With reference to embodiment and
Attached drawing is described in further details the present invention.Here, exemplary embodiment and its explanation of the invention are for explaining this hair
It is bright but not as a limitation of the invention；For those skilled in the art, the present invention can have various changes and change
Change, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention
Scope of the claims within.
Fig. 1 is process flow chart of the invention
Fig. 2 is the process flow chart after improving on the basis of the present invention
Fig. 3 is to carry out another improved process flow chart on the basis of the present invention
Dotted arrow direction indicates that air motion direction, solid arrow direction indicate the material direction of motion in figure
In figure, 1 kiln system cooler；2 hot-blast stoves；3 first air-introduced machines；4 kiln system preheaters；5 second air-introduced machines；6 dry
Dry crusher；6-1 drying crusher entrance；The outlet of 6-2 drying crusher；7 first powder concentrators；7-1 the first powder concentrator entrance；7-
The outlet of 2 first powder concentrator fine powders；The outlet of 7-3 the first powder concentrator coarse powder；8 grinding devices；8-1 grinding device entrance；8-2 grinding dress
Set outlet；9 second powder concentrators；9-1 the second powder concentrator entrance；The outlet of 9-2 the second powder concentrator fine powder；9-3 the second powder concentrator coarse powder
Outlet；10 dust-precipitators；11 blowers；12 chimneys；13 first motor-driven valves；14 second motor-driven valves；15 third motor-driven valves；16 elevators；
17 public powder concentrators；18 Vertical Mills；19 grinding powder selection devices
Specific embodiment
Chalk of the present invention prepares Raw Material System, including kiln system cooler 1, air-introduced machine, hot-blast stove 2, kiln system are pre-
Hot device 4, drying crusher 6, grinding powder selection device 19, dust-precipitator 10；It is characterized by: the hot waste gas of kiln system cooler 1 goes out
Mouth divides two-way, wherein being connected all the way with the first air-introduced machine 3, the air outlet of the first air-introduced machine 3 is connected with the air intake vent of hot-blast stove 2
It is logical；The another way is connected with the air intake vent that 2 middle part of hot-blast stove is arranged in；Kiln system preheater 4 enters with the second air-introduced machine 5
Mouth is connected, and the air outlet of the second air-introduced machine 5 divides two-way, and the first via is connected with the air outlet of hot-blast stove 2；Second tunnel and grinding
Powder selection device 19 is connected；2 air outlet of hot-blast stove is connected with drying crusher entrance 6-1；Drying crusher exports 6-2
It is connected with grinding powder selection device 19；The outlet of 19 fine powder of grinding powder selection device is connected with dust-precipitator 10.
As the first embodiment of the invention, such as Fig. 1, the grinding powder selection device 19 is by the first powder concentrator 7, grinding
Device 8 and the second powder concentrator 9 form；The drying crusher outlet 6-2 is connected with the first powder concentrator entrance 7-1；Institute
The second road hot gas being discharged in the air outlet of the second air-introduced machine 5 is stated to be connected with grinding device entrance 8-1；Grinding device exports 8-
2 are connected with the second powder concentrator entrance 9-1；After first powder concentrator fine powder outlet 7-2 is in parallel with the second powder concentrator fine powder outlet 9-2
It is connected with dust-precipitator 10；First powder concentrator coarse powder export 7-3 and the second powder concentrator coarse powder export 9-3 it is in parallel after with grinding device
Entrance 8-1 is connected.
As second of embodiment of the invention, such as Fig. 2, the grinding powder selection device 19 is by the first powder concentrator 7 and stands
18 composition of mill；The drying crusher outlet 6-2 is connected with the first powder concentrator entrance 7-1；Second air-introduced machine 5
The second road hot gas being discharged in air outlet is connected with 18 entrance of Vertical Mill；First powder concentrator fine powder outlet 7-2 is thin with Vertical Mill 18
It is connected after powder outlet is in parallel with dust-precipitator 10；First powder concentrator coarse powder outlet 7-2 is connected with the entrance of Vertical Mill 18.
As the third embodiment of the invention, such as Fig. 3, the grinding powder selection device 19 is by grinding device 8, elevator
16 form with public powder concentrator 17；It is to be improved on the basis of the first embodiment of the invention at this time, by the first choosing
Powder machine 7 merges with the second powder concentrator 9, forms a public powder concentrator 17, the lower part of public powder concentrator 17 be equipped with major ingredient entrance with
Coarse powder outlet, upper part is equipped with auxiliary material entrance and fine powder exports；And elevator 16 is added at grinding device outlet 8-2；
The i.e. described drying crusher outlet 6-2 is connected with the major ingredient entrance of public 17 lower part of powder concentrator；Second air-introduced machine 5
Air outlet in the second road hot gas for being discharged be connected with grinding device entrance 8-1；Grinding device exports 8-2 and elevator 16
Feed end is connected；The discharge end of elevator 16 is connected with auxiliary material entrance set by public 17 top of powder concentrator；It is public
The fine powder outlet on 17 top of powder concentrator is connected with dust-precipitator 10；The coarse powder outlet of public 17 lower part of powder concentrator enters with grinding device
Mouth 8-1 is connected.
In order to emit the flue gas in dust-precipitator 10, the dust-precipitator 10 is connected with blower 11；Blower 11 with
Chimney 12 is connected.
In order to preferably adjust and control each road drying hot blast rate, it is additionally provided between the hot-blast stove 2 and drying crusher 6
First motor-driven valve 13；The second motor-driven valve 14 is equipped between second air-introduced machine 5 and hot-blast stove 2；Second air-introduced machine 5 and powder
It grinds and is equipped with third motor-driven valve 15 between powder selection device 19.
The chalk prepares Raw Material System according to the present invention, prepares the specific implementation step of cement slurry are as follows:
Step 1: the waste hot gas in kiln system cooler 1 is divided into two-way after collecting, it is laggard by the first air-introduced machine 3 all the way
Enter hot-blast stove 2, the second tunnel then directly enters hot-blast stove 2 from the inlet that 2 middle part of hot-blast stove is arranged in；
Step 2: waste hot gas in kiln system preheater 4 is by also separating two-way after the second air-introduced machine 5, wherein all the way with
The hot gas mixing being discharged in hot-blast stove 2；Another way waste hot gas is directly entered grinding powder selection device 19；
Step 3: fuel is added in hot-blast stove 2, by fuel combustion, reaches and be flowed into heat in kiln system cooler 1
The purpose that waste hot gas in wind furnace 2 is heated, while the oxygen-containing exhaust gas being flowed into hot-blast stove 2 in cooler 1 is to hot-blast stove 2
Fuel combustion oxygen is provided；
Step 4: the first via hot gas being discharged in the hot gas being discharged in hot-blast stove 2 and kiln system preheater 4 is mixed
Mixing hot gas enters drying crusher 6；Chalk is fed into drying crusher 6, so that chalk is carried out drying in drying crusher 6 broken
It is broken；
Step 5: taking drying crusher 6 out of by hot wind by drying broken major ingredient, it is directly entered grinding powder selection device
19, and carry out that powder is selected to be classified wherein；
Step 6: auxiliary material feeding grinding powder selection device 19 is handled, and carried out in grinding powder selection device 19
Select powder；
Step 7: after grinding powder selection device 19 carries out selecting powder, the coarse powder of underproof major ingredient and auxiliary material returns jointly
It returns in grinding powder selection device 19 and carries out circulation grinding, select powder；
Step 8: concentrating on receiving after fine powder outlet discharge by by selecting the major ingredient of powder qualification and the fine powder of auxiliary material
It is mixed in dirt device 10, and the cement slurry mixed is subjected to finished product collection；It then, will by blower 11 and chimney 12
Residue is discarded to be discharged into atmosphere.
When grinding powder selection device 19 is heretofore described first embodiment, i.e., grinding powder selection device 19 selects powder by first
When machine 7, grinding device 8 and the second powder concentrator 9 form, major ingredient --- chalk dry in drying crusher 6 be crushed after, into the
One powder concentrator 7；After the first powder concentrator 7 selects powder, fine powder selects powder from first from the first powder concentrator fine powder outlet 7-2 discharge, coarse powder
Machine coarse powder exports 7-3 discharge, into carrying out grinding in grinding device 8；Auxiliary material is fed in grinding device 8 and carries out grinding,
Auxiliary material after grinding, which enters in the second powder concentrator 9, select powder, and fine powder exports 9-2 band with the wind from the second powder concentrator fine powder
Out, in parallel with the major ingredient fine powder taken out of with the wind at the first powder concentrator fine powder outlet 7-2 latter same into dust-precipitator 10；Coarse powder is from
Two powder concentrator coarse powder export 9-3 discharge, return to grinding device 8 and carry out circulation grinding.
When grinding powder selection device 19 is heretofore described second embodiment, i.e., grinding powder selection device 19 selects powder by first
Machine 7 and Vertical Mill 18 form, major ingredient --- chalk dry in drying crusher 6 be crushed after, into the first powder concentrator 7；Through first
After powder concentrator 7 selects powder, fine powder is taken out of with the wind from the first powder concentrator fine powder outlet 7-2, and coarse powder exports 7-3 from the first powder concentrator coarse powder
Discharge, into carrying out grinding in Vertical Mill 18；Auxiliary material feeding Vertical Mill 18 is subjected to grinding, enters back into 18 top of Vertical Mill after grinding
It carries out selecting powder, fine powder is exported from 18 fine powder of Vertical Mill and is discharged, in parallel with the major ingredient fine powder taken out of at the first powder concentrator fine powder outlet 7-2
It is latter same into dust-precipitator 10；Coarse powder is discharged from 18 coarse powder exit of Vertical Mill, returns to Vertical Mill 18 and carries out circulation grinding.
When grinding powder selection device 19 is heretofore described 3rd embodiment, i.e., grinding powder selection device 19 selects powder by public
Machine 17, grinding device 8 and elevator 16 form；Major ingredient --- chalk dried in drying crusher 6 it is broken after, into public choosing
Powder machine 17；Will auxiliary material feed grinding device 8 in carry out grinding, the auxiliary material after grinding by elevator 16 promotion after,
Public powder concentrator 17 is entered by the auxiliary material entrance on public 17 top of powder concentrator, major ingredient mixes in public powder concentrator 17 with auxiliary material
Afterwards, powder is selected through public powder concentrator 17, the fine powder selected is taken out of with the wind from the fine powder exit on public 17 top of powder concentrator, into receipts
In dirt device 10；The coarse powder selected is discharged from the coarse powder exit of public 17 lower part of powder concentrator, returns to grinding device 8 and carries out circulation powder
Mill.
As second of embodiment of the invention, by the grinding of auxiliary material and powder selection device be set as collection grinding, drying,
Select powder function in the Vertical Mill 18 of one, meanwhile, the coarse powder and auxiliary material that the first powder concentrator 7 is selected feed Vertical Mill 18, vertical
Grinding is completed in mill 18, dries and select powder process.
As the third embodiment of the invention, 16 feed end of elevator is connected with grinding device outlet 8-2, discharges
End is connected with the auxiliary material entrance on public 17 top of powder concentrator；Below the chalk material that drying crusher 6 was crushed into
The mode of wind enters public powder concentrator 17；Meanwhile after the auxiliary material crossed through 8 grinding of grinding device is promoted by elevator 16,
Public powder concentrator 17 is fed in a manner of the spreading of top, chalk mixes in public powder concentrator 17 with auxiliary material, mixed
Material is sorted, selects and meets the fine powder of raw meal particulate degree requirement and take out of with the wind from public powder concentrator 17, then receives through dust-precipitator 10
For finished product；And the coarse powder for not meeting raw meal particulate degree requirement selected then returns to grinding device 8 and re-starts grinding.
For the present invention according to the physical property of chalk and auxiliary material, function is broken up in the drying for giving full play to drying crusher 6
With the efficient grinding function of grinding device 8；Realization chalk high efficiency drying is broken up, while to auxiliary block material carry out grinding,
Drying, realizes the efficient preparation process of raw material, is that a kind of more energy-efficient chalk prepares Raw Material System.
Claims (6)
1. a kind of chalk prepares Raw Material System, including kiln system cooler (1), air-introduced machine, hot-blast stove (2), kiln system preheater
(4), drying crusher (6), grinding powder selection device (19), dust-precipitator (10)；It is characterized by: the heat of kiln system cooler (1)
Waste gas outlet divides two-way, wherein be connected all the way with the first air-introduced machine (3), the air outlet of the first air-introduced machine (3) and hot-blast stove (2)
Air intake vent be connected；Another way is connected with the air intake vent being arranged in the middle part of hot-blast stove (2)；Kiln system preheater (4) and the
The entrance of two air-introduced machines (5) is connected, and the air outlet of the second air-introduced machine (5) divides two-way, the air outlet of the first via and hot-blast stove (2)
It is connected；Second tunnel is connected with grinding powder selection device (19)；Hot-blast stove (2) air outlet and drying crusher entrance (6-
1) it is connected；Drying crusher outlet (6-2) is connected with grinding powder selection device (19)；The outlet of grinding powder selection device (19) fine powder
It is connected with dust-precipitator (10).
2. chalk as described in claim 1 prepares Raw Material System, it is characterised in that: the grinding powder selection device (19) is by first
Powder concentrator (7), grinding device (8) and the second powder concentrator (9) form；The drying crusher outlet (6-2) and first choosing
Powder machine entrance (7-1) is connected；The the second road hot gas and grinding device entrance being discharged in the air outlet of second air-introduced machine (5)
(8-1) is connected；Grinding device outlet (8-2) is connected with the second powder concentrator entrance (9-1)；The outlet of first powder concentrator fine powder
(7-2) is connected after exporting (9-2) parallel connection with the second powder concentrator fine powder with dust-precipitator (10)；First powder concentrator coarse powder exports (7-
3) it is connected to after the second powder concentrator coarse powder outlet (9-3) parallel connection with grinding device entrance (8-1).
3. chalk as described in claim 1 prepares Raw Material System, it is characterised in that: the grinding powder selection device (19) is by first
Powder concentrator (7) and Vertical Mill (18) composition；The drying crusher outlet (6-2) is connected with the first powder concentrator entrance (7-1)
It is logical；The second road hot gas being discharged in the air outlet of second air-introduced machine (5) is connected with the entrance of Vertical Mill (18)；First selects powder
Machine fine powder exports (7-2) and is connected with after the fine powder of Vertical Mill (18) outlet parallel connection with dust-precipitator (10)；First powder concentrator coarse powder goes out
Mouth (7-2) is connected with the entrance of Vertical Mill (18).
4. chalk as described in claim 1 prepares Raw Material System, it is characterised in that: the grinding powder selection device (19) is by grinding
Device (8), elevator (16) and public powder concentrator (17) form；Drying crusher outlet (6-2) and described public select powder
The major ingredient entrance of machine (17) lower part is connected；The the second road hot gas and grinding being discharged in the air outlet of second air-introduced machine (5)
Device portal (8-1) is connected；Grinding device outlet (8-2) is connected with the feed end of elevator (16)；Elevator (16)
Discharge end is connected with auxiliary material entrance set by public powder concentrator (17) top；The fine powder on public powder concentrator (17) top goes out
Mouth is connected with dust-precipitator (10)；The coarse powder outlet of public powder concentrator (17) lower part is connected with grinding device entrance (8-1).
5. chalk as described in claim 1 prepares Raw Material System, it is characterised in that: the chalk prepares Raw Material System and further includes
Blower (11) and chimney (12)；Blower (11) air inlet is connected with dust-precipitator (10)；Blower (11) air outlet and chimney
(12) it is connected.
6. chalk as described in claim 1 prepares Raw Material System, it is characterised in that: the hot-blast stove (2) and drying crusher
(6) the first motor-driven valve (13 is additionally provided between；The second motor-driven valve is equipped between second air-introduced machine (5) and hot-blast stove (2)
(14)；Third motor-driven valve (15) are equipped between second air-introduced machine (5) and grinding powder selection device (19).
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| CN201510710601.6A CN106630705B (en) | 2015-10-28 | 2015-10-28 | Chalk prepares Raw Material System |
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| CN201510710601.6A CN106630705B (en) | 2015-10-28 | 2015-10-28 | Chalk prepares Raw Material System |
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| CN106630705B true CN106630705B (en) | 2019-05-10 |
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| CN108178541A (en) * | 2017-12-29 | 2018-06-19 | 天津水泥工业设计研究院有限公司 | A kind of method for preparing raw material that sulphate aluminium cement is prepared for solid waste cooperative compensating |
| CN115888948A (en) * | 2022-11-16 | 2023-04-04 | 成武金利宏新能源有限公司 | Preparation method of slag micro powder |
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| CN205061900U (en) * | 2015-10-28 | 2016-03-02 | 南京凯盛国际工程有限公司 | Chalk preparation raw material system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205061900U (en) * | 2015-10-28 | 2016-03-02 | 南京凯盛国际工程有限公司 | Chalk preparation raw material system |
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