CN106082727A - A kind of cement production process and equipment thereof - Google Patents
A kind of cement production process and equipment thereof Download PDFInfo
- Publication number
- CN106082727A CN106082727A CN201610443391.3A CN201610443391A CN106082727A CN 106082727 A CN106082727 A CN 106082727A CN 201610443391 A CN201610443391 A CN 201610443391A CN 106082727 A CN106082727 A CN 106082727A
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- China
- Prior art keywords
- cement
- raw material
- homogenizing
- clinker
- kiln
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of cement production process, comprises the following steps: S1: smashed by the raw material preparing cement；S2: carry out grinding by preparing the auxiliary material needed for cement；S3: the homogenizing process of raw material that cement will be prepared；S4: the raw material after homogenizing being processed carries out pre-thermal decomposition；S5: the raw material after preheating and decomposition is calcined in rotary kiln, and forms clinker；S6: the clinker of calcining is carried out grinding process；By using process above method, it is possible to be effectively improved manufacture of cement efficiency, improve the quality of production of cement；And production equipment, the stability of raising equipment can be simplified, reduce energy consumption, economize on resources to reach the purpose of energy-conserving and environment-protective；Meanwhile, the production equipment volume that the present invention provides is relatively small, and convenient maintenance, reduce production cost.
Description
Technical field
The invention belongs to field of cement production, be specifically related to a kind of cement production process and equipment thereof.
Background technology
Along with the demand of social development cement do not stop go up, cement relate in process of production the different process stage and
It is not both process equipment；Existing production and processing technology is the most tediously long, equipment is complex, and production efficiency is relatively low, and this is all
Badly influence the demand of manufacture of cement；Meanwhile, the power consumption of existing manufacture of cement processing technique is relatively big, relatively costly, should not grow
Produce for a long time.
Based on technical problem present in above-mentioned cement production process, not yet there is relevant solution；Therefore compel to be essential
Effective scheme to be sought is to solve the problems referred to above.
Summary of the invention
It is an object of the invention to for weak point present in above-mentioned technology, propose a kind of cement production process and set
Standby, it is intended to solve the existing problem that manufacture of cement working (machining) efficiency is low, program is complicated.
The present invention provides a kind of cement production process, comprises the following steps:
S1: the raw material preparing cement is smashed；
S2: carry out grinding by preparing the auxiliary material needed for cement；
S3: the homogenizing process of raw material that cement will be prepared；
S4: the raw material after homogenizing being processed carries out pre-thermal decomposition；
S5: the raw material after preheating and decomposition is calcined in rotary kiln, and forms clinker；
S6: the clinker of calcining is carried out grinding process.
Further, described S1 step, also include:
S11: the raw material preparing cement is carried out pre-homogenizing process.
Further, described S4 step, also include:
S41: the raw material after homogenizing being processed disperses in preheater tubes；
S42: the raw material after dispersion is carried out gas solid separation；
S43: the raw material after gas solid separation is carried out predecomposition.
Further, described S6 step, carry out together with described clinker including by gellant, limestone or flyash
Grinding.
Further, between described S5 step and described S6 step, also include:
S51: calcining formation clinker is carried out cooling process.
Further, S7 step is also included:
S7: packed by the cement after grinding, described packaging includes packed or in bulk
The present invention also provides for a kind of cement manufacture plant, and including disintegrating machine, institute's disintegrating machine is for smashing the raw material of cement；Homogenizing
Kiln, homogenizing kiln raw material after homogenizing smashes；Preheater, preheater raw material after heating homogenizing；Dore furnace, dore furnace
Raw material after decomposing preheating；Rotary kiln, rotary kiln raw material after calcining and decomposing so that it is be sintered into clinker；With
And including grinding device, grinding device is used for pulverizing cement grog；Disintegrating machine, homogenizing kiln, preheater, dore furnace, rotary kiln and powder
Grinder is sequentially connected with respectively.
Further, also include that fuel jetting device, fuel jetting device are arranged on dore furnace；Fuel jetting device with
Dore furnace is connected.
Further, also including chiller, chiller is arranged between rotary kiln and grinding device.
Further, also including cyclone cluster, cyclone cluster is arranged in the air channel of preheater.
By using process above method and the equipment of production, it is possible to be effectively improved manufacture of cement efficiency, improve the life of cement
Yield and quality；And production equipment, the stability of raising equipment can be simplified, reduce energy consumption, economize on resources to reach energy-conserving and environment-protective
Purpose；Meanwhile, the production equipment volume that the present invention provides is relatively small, and convenient maintenance, reduce production cost.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Below with reference to accompanying drawing, the invention will be further described:
Fig. 1 is one cement production process flow chart of the present invention；
Fig. 2 is one cement manufacture plant schematic diagram of the present invention.
In figure: 1, disintegrating machine；2, homogenizing kiln；3, preheater；4, dore furnace；5, rotary kiln；6, grinding device；7, fuel sprays into
Device.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, the present invention provides a kind of cement production process, specifically include following steps:
S1: pulverize and pre-homogenizing (1) crushes: in cement production process, major part raw material pulverization process to be carried out, such as stone
Lime stone, clay, iron ore and coal etc.；Limestone is to produce cement primary raw material, and the granularity after its exploitation is relatively big, and hardness is higher,
As processed without smashing, subsequent production efficiency will be badly influenced with difficulty.(2) raw material prehomogenization: preferably, at raw material
During depositing, withdrawing, use heap feeding technology, it is achieved the preliminary homogenisation of raw material, make material storage yard be provided simultaneously with storage and homogenizing
Function.
It is to be understood that homogenizing is to ensure that clinker quality, yield and drops low consumed basic measures and precondition, also
It it is the important way of cement quality of stably dispatching from the factory；It mainly uses air stirring, action of gravity, produces " funneling effect ", makes raw
When material powder drops downwards, cutting multilamellar charge level, is sufficiently mixed as far as possible；Utilize different fluidization airs, parallel charge level in making storehouse
The fluidisation expansion varied in size, the discharging of some regions, some regions fluidize, so that charge level produces in storehouse,
Carry out radially mixing homogenizing.S2: auxiliary material is prepared in cement production process, often produces 1 ton of portland cement and at least wants
3 tons of raw materials of grinding (including the auxiliary materials such as various raw material, fuel, grog, compound, Gypsum Fibrosum)；Rationally select milling equipment and
Technological process, Optimizing Process Parameters, pre-coordination auxiliary material is to ensureing that product quality, reduction energy consumption are significant.S3:
In material homogenizer System during New Style Dry-Process Production, stably enter the premise that kiln raw ingredients is stable sinter leaching thermal regulation,
Raw material homogenization system plays the last effect of checking on together stably entering kiln raw ingredients；Homogenization and principle are the most above-mentioned, at this
It is not repeated.S4: pre-thermal decomposition is completed preheating and the decomposed of raw material by preheater, replaces rotary kiln part merit
Can, reach to shorten back kiln length, in making kiln, carry out gas material heat transfer process with stacking states simultaneously, move on to preheater interior in suspension
Carry out under state, enable raw material to be sufficiently mixed with the hot gases discharged in kiln, increase gas material contact area, heat transfer rate
Hurry up, heat exchanger effectiveness is high, reaches to improve kiln system production efficiency, the purpose of reduction sinter leaching heat consumption.
Preferably, pre-thermal decomposition is further comprising the steps of: (1) material dispersion is owing to heat exchange 80% is at pre-heater inlet pipeline
Inside carrying out, the raw material in feeding preheater tubes, with under the impact of high speed ascending air, material is turned back and is upwards transported with air-flow
Dynamic, disperseed simultaneously.(2) gas solid separation is after air-flow carries material powder entrance cyclone cylinder, is forced in cyclone muff and inner core
Do rotational flow in annulus between (exhaustor), and rotate and move downward, by cylinder to cone, always
Extend to the end of cone, then then rotate up rising, exhaustor discharge.(3) predecomposition predecomposition technology
Appearance is cement calcinating process technological break-through successively；It is to set up dore furnace between preheater and rotary kiln and utilize on kiln tail
Rise flue, set up fuel jetting device, make the endothermic process of the exothermic process of fuel combustion and the carbonate decomposition of raw material, dividing
Solve stove interior to carry out rapidly under suspended state or fluidisation state, make the resolution ratio of kiln raw material bring up to more than 90%；Will be originally in revolution
The carbonate decomposition task carried out in kiln, is carried out in moving on to dore furnace；Fuel major part adds in dore furnace, and small part is by kiln
Head adds, and alleviates the thermic load of burning zone in kiln, extends the wadding life-span, be conducive to producing maximization；Due to fuel and life
Material mix homogeneously, fuel combustion heat passes to material in time, makes burning, heat exchange and carbonate decomposition process be optimized；Thus
There is a series of premium properties and the feature such as high-quality, efficient, low consumption.The calcining raw material of S5: clinker are in cyclone preheater
After completing preheating and predecomposition, next process is the calcining entering in rotary kiln and carrying out grog, the temperature of calcining elects 1000 as ~
1500 °, preferably 1460 °.In rotary kiln, carbonate decomposes the most rapidly and occurs a series of solid state reaction, generates
The mineral such as tricalcium silicate in clinker, dicalcium silicate, tricalcium aluminate.When raising nearly 1460 ° along with temperature of charge, silicic acid three
The mineral such as calcium, dicalcium silicate, tricalcium aluminate can become liquid phase, and the calcium being dissolved in liquid phase and silicic acid carry out reaction and generates a large amount of
(grog).After sinter leaching, temperature starts to reduce；Last high temperature chamotte cooling rotary kiln drawn off by cement clinker cooler
Carry to downstream, temperature that depots and cement grinding mill can bear, reclaim the sensible heat of high temperature chamotte simultaneously, improve the thermal effect of system
Rate and clinker quality.S6: cement grinding cement grinding is the finishing operation of manufacture of cement, and its Main Function is to be cement
Grog (including gellant, limestone or flyash etc. and clinker) grinding to suitable granularity (with fineness, specific surface area etc.
Represent), form certain grain composition, increase its water accessible area, acceleration of hydration speed, meet cement slurry and condense, harden and want
Ask.S7: cement packing
Cement after grinding is packed, includes packed or in bulk；Cement is sealed by packed being specially by packaging machine
It is loaded in special bag of cement；In bulk specifically by conveyer belt, cement is delivered to corresponding storing box.
In conjunction with above-mentioned side, as in figure 2 it is shown, the present invention correspondingly provides the equipment of a kind of manufacture of cement, including being sequentially connected with
Disintegrating machine 1, homogenizing kiln 2, preheater 3, dore furnace 4, rotary kiln 5 and grinding device 6；Wherein disintegrating machine 1 is used for smashing cement
Raw material；The homogenizing kiln 2 raw material after homogenizing smashes；The preheater 3 raw material after heating homogenizing；Dore furnace 4 is for dividing
Solve the raw material after preheating；The rotary kiln 5 raw material after calcining and decomposing so that it is be sintered into clinker；Grinding device 6 is for grinding
Clinker；Also include that fuel jetting device 7, fuel jetting device 7 are arranged on dore furnace 4, and are connected with dore furnace, logical
Cross fuel jetting device 7 and can provide fuel for dore furnace 4 easily and effectively, it is to avoid fuel mainly adds in dore furnace 4, or
Added by kiln hood, alleviate the thermic load of burning zone in kiln, extend the wadding life-span.
Preferably, also including chiller, chiller is arranged between rotary kiln and grinding device 6, and its Main Function is
By the clinker cooling after calcining, it is simple to encapsulation, the most in good time cooling is also beneficial to improve the quality of cement.
Preferably, also including cyclone cluster, cyclone cluster is arranged in the air channel of preheater, and its Main Function is that decomposition homogenizing is pre-
Raw material after heat, heat radiation, prepares for subsequent handling the most further.
By using process above method and the equipment of production, it is possible to be effectively improved manufacture of cement efficiency, improve the life of cement
Yield and quality；And production equipment, the stability of raising equipment can be simplified, reduce energy consumption, economize on resources to reach energy-conserving and environment-protective
Purpose；Meanwhile, the production equipment volume that the present invention provides is relatively small, and convenient maintenance, reduce production cost.
The above, only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction.Any ripe
Know those skilled in the art, without departing under technical solution of the present invention ambit, all may utilize technology contents described above
Technical solution of the present invention is made many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore, all
It is the content without departing from technical solution of the present invention, according to the technology of the present invention, any change made for any of the above embodiments is revised,
Equivalent variations and modification, belong to the protection domain of the technical program.
Claims (10)
1. a cement production process, it is characterised in that comprise the following steps:
S1: the raw material preparing cement is smashed；
S2: carry out grinding by preparing the auxiliary material needed for cement；
S3: the homogenizing process of raw material that cement will be prepared；
S4: the raw material after homogenizing being processed carries out pre-thermal decomposition；
S5: the raw material after preheating and decomposition is calcined in rotary kiln, and forms clinker；
S6: the clinker of calcining is carried out grinding process.
Cement production process the most according to claim 1, it is characterised in that described S1 step, also includes:
S11: the raw material preparing cement is carried out pre-homogenizing process.
Cement production process the most according to claim 1, it is characterised in that described S4 step, also includes:
S41: the raw material after homogenizing being processed disperses in preheater tubes；
S42: the raw material after dispersion is carried out gas solid separation；
S43: the raw material after gas solid separation is carried out predecomposition.
Cement production process the most according to claim 1, it is characterised in that described S6 step, including by gellant, Calx
Stone or flyash carry out grinding together with described clinker.
Cement production process the most according to claim 1, it is characterised in that between described S5 step and described S6 step,
Also include:
S51: calcining formation clinker is carried out cooling process.
6. according to the cement production process described in claim 1 to 5 any one, it is characterised in that also include S7 step:
S7: packed by the cement after grinding, described packaging includes packed or in bulk.
7. a cement manufacture plant, it is characterised in that include disintegrating machine, described disintegrating machine is for smashing the raw material of cement；All
Change kiln, described homogenizing kiln raw material after homogenizing smashes；Preheater, described preheater raw material after heating homogenizing；Point
Solve stove, described dore furnace raw material after decomposing preheating；Rotary kiln, described rotary kiln raw material after calcining and decomposing, make
It is sintered into clinker；And including grinding device, described grinding device is used for pulverizing cement grog；Described disintegrating machine, homogenizing kiln,
Preheater, dore furnace, rotary kiln and grinding device are sequentially connected with respectively.
Cement manufacture plant the most according to claim 7, it is characterised in that also include fuel jetting device, described fuel
Jetting device is arranged on described dore furnace；Described fuel jetting device is connected with described dore furnace.
Cement manufacture plant the most according to claim 7, it is characterised in that also include chiller, described chiller
It is arranged between described rotary kiln and described grinding device.
Cement manufacture plant the most according to claim 7, it is characterised in that also include cyclone cluster, described cyclone cluster is arranged
In the air channel of described preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610443391.3A CN106082727A (en) | 2016-06-21 | 2016-06-21 | A kind of cement production process and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610443391.3A CN106082727A (en) | 2016-06-21 | 2016-06-21 | A kind of cement production process and equipment thereof |
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| CN106082727A true CN106082727A (en) | 2016-11-09 |
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| CN201610443391.3A Pending CN106082727A (en) | 2016-06-21 | 2016-06-21 | A kind of cement production process and equipment thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106607170A (en) * | 2016-12-14 | 2017-05-03 | 中联重科股份有限公司 | Aggregate-cement co-production equipment |
| CN107010855A (en) * | 2017-05-02 | 2017-08-04 | 山东鲁珠集团有限公司 | The formula and preparation method of clinker are made using mixing plant solid waste |
| CN107790263A (en) * | 2017-10-23 | 2018-03-13 | 铜陵市荣伟水泥有限责任公司 | Cement Joint grinding system |
| CN109053007A (en) * | 2018-08-08 | 2018-12-21 | 赵先波 | A kind of high rigidity cement and preparation method thereof |
| CN112094059A (en) * | 2020-08-22 | 2020-12-18 | 福建三明南方水泥有限公司 | Preparation process of high-grade cement based on modified fluorgypsum |
| CN113200691A (en) * | 2021-05-14 | 2021-08-03 | 乐陵山水水泥有限公司 | Cement production process and energy-saving equipment thereof |
| CN115921012A (en) * | 2022-11-01 | 2023-04-07 | 山东山铝环境新材料有限公司 | Automatic cement production management system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106607170A (en) * | 2016-12-14 | 2017-05-03 | 中联重科股份有限公司 | Aggregate-cement co-production equipment |
| CN107010855A (en) * | 2017-05-02 | 2017-08-04 | 山东鲁珠集团有限公司 | The formula and preparation method of clinker are made using mixing plant solid waste |
| CN107790263A (en) * | 2017-10-23 | 2018-03-13 | 铜陵市荣伟水泥有限责任公司 | Cement Joint grinding system |
| CN109053007A (en) * | 2018-08-08 | 2018-12-21 | 赵先波 | A kind of high rigidity cement and preparation method thereof |
| CN112094059A (en) * | 2020-08-22 | 2020-12-18 | 福建三明南方水泥有限公司 | Preparation process of high-grade cement based on modified fluorgypsum |
| CN113200691A (en) * | 2021-05-14 | 2021-08-03 | 乐陵山水水泥有限公司 | Cement production process and energy-saving equipment thereof |
| CN115921012A (en) * | 2022-11-01 | 2023-04-07 | 山东山铝环境新材料有限公司 | Automatic cement production management system |
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