CN112551923A - Biomass-substituted cement kiln fuel calcined silicate clinker and preparation method thereof - Google Patents
Biomass-substituted cement kiln fuel calcined silicate clinker and preparation method thereof Download PDFInfo
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- CN112551923A CN112551923A CN202011459532.3A CN202011459532A CN112551923A CN 112551923 A CN112551923 A CN 112551923A CN 202011459532 A CN202011459532 A CN 202011459532A CN 112551923 A CN112551923 A CN 112551923A
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- clinker
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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
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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
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
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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
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes
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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
- 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
- Y02P40/125—Fuels from renewable energy sources, e.g. waste or biomass
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- Organic Chemistry (AREA)
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- Thermal Sciences (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a biomass alternative cement kiln fuel calcined silicate clinker and a preparation method thereof, which comprises a clinker production process and a cement production process, wherein the clinker produced by the clinker production process is placed in a clinker homogenizing warehouse, the clinker production process adopts the clinker in the clinker homogenizing warehouse to produce cement, both the clinker production process and the cement production process use a microcomputer automatic batching control system, the microcomputer automatic batching control system acts on batching procedures in the clinker production process and the cement production process, the microcomputer automatic batching control system acts on batching input of a pre-homogenizing yard and a clay shed in the clinker production process, and the microcomputer automatic batching control system acts on batching input of clinker batching, a gypsum shed and a mixed material shed in the cement production process. The invention adopts a microcomputer automatic batching control system to carry out accurate and automatic batching in the clinker production process and the cement production process, and can improve the production quality of clinker and cement.
Description
Technical Field
The invention relates to the technical field of cement production, in particular to a biomass calcined silicate clinker for replacing cement kiln fuel and a preparation method thereof.
Background
In the cement production process, raw materials are required to be proportioned to prepare clinker, the clinker is processed into cement after a series of processes, the clinker and the cement can be packaged and sold, and the finished cement is used as an indispensable building material in the field of building construction and has very wide application.
After mass search, the prior art is found, and the publication number is CN1064649C, discloses a cement production method, which comprises the steps of mixing raw cement powder and coal powder according to a certain proportion, making the mixture into blocks, stacking the blocks in a ring kiln, a tunnel kiln or a down-draft kiln, calcining, coarsely crushing the calcined product, adding an auxiliary agent, and grinding to obtain a cement product. The invention overcomes the defects of easy change of raw material proportion, insufficient sintering, difficult operation and management, furnace wall adhesion, agglomeration, raw material leakage, high coal consumption and unstable product quality in the existing cement production process. The method for producing cement has the advantages of simple process, less equipment investment, convenient operation and easy management of the production process, and can obtain stable high-quality cement.
In summary, in the existing cement production process, the ingredient proportion of clinker and cement production is not accurate and flexible enough, and the ingredients in clinker and cement are changed, so that the quality of clinker and cement is affected, and the use quality of clinker and cement is affected.
Disclosure of Invention
The invention aims to provide a method for calcining silicate clinker by using biomass to replace cement kiln fuel and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for preparing silicate clinker calcined by biomass instead of cement kiln fuel comprises a clinker production process and a cement production process, wherein the clinker produced by the clinker production process is placed in a clinker homogenizing chamber, the clinker production process adopts the clinker in the clinker homogenizing chamber to produce cement, and the clinker production process and the cement production process both use a microcomputer automatic batching control system;
the automatic batching control system is used for acting on batching procedures in a clinker production process and a cement production process, in the clinker production process, the automatic batching control system is used for acting on batching input of a pre-homogenization yard and a clay piling shed, and in the cement production process, the automatic batching control system is used for acting on batching input of clinker allocation, a gypsum piling shed and a mixed material piling shed.
Preferably, in the clinker production process, the raw coal piling shed conveys raw coal to a pre-homogenization piling shed, the pre-homogenization spraying pre-homogenizes the raw coal and then conveys the pre-homogenized raw coal to a swept mill, the raw coal treated by the swept mill is piled to a coal powder bin, and the coal powder provides fuel for a decomposing furnace and a rotary kiln;
after mining limestone in the limestone mine, putting the limestone into a limestone crusher for crushing, piling the crushed limestone in a pre-homogenization yard, putting the limestone in the pre-homogenization yard into a microcomputer automatic batching control system, matching the pre-homogenization yard with an iron powder piling shed, and putting iron powder into the microcomputer automatic batching control system by the iron powder piling shed;
the clay piling shed puts clay into the microcomputer automatic batching control system, and is matched with the shale piling shed, and the shale piling shed puts shale into the microcomputer automatic batching control system;
the automatic batching control system of the microcomputer respectively controls the specific gravity of limestone, iron powder, clay and shale, and the effect of automatic batching is realized.
Preferably, after the automatic batching of the microcomputer automatic batching control system in the clinker production process is finished, the batching is input into a raw material vertical mill, and the raw material vertical mill mixes and refines the batching to prepare cement raw materials;
after the vertical grinding of the raw materials is finished, the raw materials are transmitted to a raw material homogenizing warehouse, the raw materials are conveyed to a five-stage cyclone preheater after being homogenized, and the five-stage cyclone preheater preheats the raw materials;
after the preheating of the raw materials is finished, the raw materials are put into a decomposing furnace and heated, so that ingredients in the raw materials are decomposed and are transmitted into a rotary kiln, and the heated ingredients in the rotary kiln enter a grate cooler through a kiln head;
the grate cooler fully cools the clinker, conveys the cooled clinker to a clinker crusher, crushes the clinker by the clinker crusher, and transmits the crushed clinker to a clinker homogenizing warehouse.
Preferably, the clinker in the clinker homogenizing warehouse in the clinker production process can be respectively conveyed to warehouse side bulk loading and clinker blending procedures;
the clinker can be bagged in bulk at the warehouse side, the packaged clinker can be directly delivered from a factory in bulk, and the clinker can be directly blended by blending the clinker so as to be convenient for subsequent cement production and use.
Preferably, the cement production process uses the clinker in the clinker homogenizing warehouse to carry out clinker blending, the blended clinker can be transmitted to a microcomputer automatic batching control system, and the microcomputer automatic batching control system in the cement production process is connected with a gypsum piling shed and a mixing tank piling shed;
the gypsum shed conveys gypsum to the microcomputer automatic batching control system, the gypsum passes through a gypsum crusher in the conveying process, the gypsum crusher crushes the gypsum, the crushed gypsum is stacked and conveyed to a gypsum blending warehouse, and the gypsum blending warehouse is in transmission connection with a microcomputer automatic batching control system component;
the mixed material piling shed conveys the mixed material to a mixed material allocation library, and the mixed material is allocated by the mixed material allocation library and then is transmitted to the microcomputer automatic batching control system.
Preferably, after the automatic batching control system of the microcomputer in the cement production process is used for batching clinker, gypsum and mixed materials, the raw materials are transmitted to a roller press, and then are transmitted to a combined grinding system after passing through the roller press;
the combined grinding system is used for transmitting cement powder to a cement storage homogenizing warehouse after the raw materials are ground in a full-face mode, and homogenizing and storing the cement;
the cement stored in the cement storage homogenizing silo can be packaged and unpacked in bulk through a rotary packaging machine, the packaged cement can be delivered out of a factory as bagged cement, and the rotary packaging machine can be unpacked in bulk through the silo side to prepare bulk cement.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts the microcomputer automatic batching control system in the clinker production process and the cement production process, the microcomputer automatic batching control system can accurately proportion limestone, iron powder, clay and shale in the clinker production process respectively, so that batching and mixing are more flexible, the ingredients in the clinker are effectively accurately proportioned, the constant quality of the clinker production can be effectively ensured, and meanwhile, the microcomputer automatic batching control system can accurately proportion the clinker, gypsum and mixed materials in the cement production process, thereby ensuring the stable quality of the cement production, reducing errors generated in the proportioning process and reducing the fluctuation of the cement quality.
Drawings
FIG. 1 is a schematic flow diagram of a clinker production process of the present invention;
FIG. 2 is a schematic view of the cement production process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides two embodiments: a method for preparing silicate clinker calcined by biomass instead of cement kiln fuel comprises a clinker production process and a cement production process, wherein the clinker produced by the clinker production process is placed in a clinker homogenizing warehouse, the clinker production process adopts the clinker produced by the clinker homogenizing warehouse to produce cement, and the clinker production process and the cement production process both use a microcomputer automatic batching control system;
the microcomputer automatic batching control system acts on the batching procedures in the clinker production process and the cement production process, in the clinker production process, the microcomputer automatic batching control system acts on the batching input of the pre-homogenization yard and the clay piling shed, and in the cement production process, the microcomputer automatic batching control system acts on the batching input of the clinker allocation, the gypsum piling shed and the mixed material piling shed.
The first embodiment is as follows:
referring to fig. 1, in the clinker production process, raw coal is conveyed to a pre-homogenization shed by a raw coal shed, pre-homogenization spraying is performed on the raw coal and then the raw coal is conveyed to an air swept mill, the raw coal after the air swept mill treatment is stacked to a coal powder bin, and the coal powder provides fuel for a decomposing furnace and a rotary kiln;
after mining limestone in a limestone mine, putting the limestone into a limestone crusher for crushing, piling the crushed limestone in a pre-homogenization yard, putting the limestone in the pre-homogenization yard into a microcomputer automatic batching control system, matching the pre-homogenization yard with an iron powder piling shed, and putting iron powder into the microcomputer automatic batching control system by the iron powder piling shed;
the clay piling shed puts clay into the microcomputer automatic batching control system, and meanwhile, the shale piling shed is matched with the shale piling shed and puts shale into the microcomputer automatic batching control system;
the microcomputer automatic batching control system respectively controls the specific gravity of limestone, iron powder, clay and shale to realize the effect of automatic batching, and the microcomputer automatic batching control system can respectively control the conveying interfaces of the limestone, the iron powder, the clay and the shale, adopts a digital electromagnetic valve and continuous weighing equipment to continuously weigh the batching, and stops the conveying of the batching through the digital electromagnetic valve, thereby realizing the automatic batching.
After the automatic batching of the microcomputer automatic batching control system in the clinker production process is finished, the batching is input into a raw material vertical mill, and the raw material vertical mill mixes and refines the batching to prepare cement raw materials;
after the vertical grinding of the raw materials is finished, the raw materials are transmitted to a raw material homogenizing warehouse, the raw materials are conveyed to a five-stage cyclone preheater after being homogenized, and the five-stage cyclone preheater preheats the raw materials;
after the preheating of the raw materials is finished, the raw materials are put into a decomposing furnace and heated, so that ingredients in the raw materials are decomposed and are transmitted to a rotary kiln, in the process of calcining silicate clinker by the rotary kiln, biomass fuel is adopted to replace traditional fossil fuel to calcine the silicate clinker, and the heated ingredients in the rotary kiln enter a grate cooler through a kiln head;
the grate cooler fully cools the clinker, conveys the cooled clinker to a clinker crusher, crushes the clinker by the clinker crusher, and transmits the crushed clinker to a clinker homogenizing warehouse.
In the clinker production process, clinker in a clinker homogenizing warehouse can be respectively conveyed to the warehouse side for bulk loading and a clinker blending process;
the clinker can be bagged in bulk at the warehouse side, the packaged clinker can be directly delivered from a factory in bulk, and the clinker can be directly prepared by the clinker preparation, so that the subsequent cement production and use are facilitated.
Example two:
referring to fig. 2, the cement production process uses the clinker in the clinker homogenizing silo to perform clinker blending, the blended clinker can be transmitted to a microcomputer automatic batching control system, and the microcomputer automatic batching control system in the cement production process is connected with a gypsum piling shed and a mixing tank piling shed;
the gypsum piling shed conveys gypsum to the microcomputer automatic batching control system, the gypsum passes through a gypsum crusher in the conveying process, the gypsum crusher crushes the gypsum, the crushed gypsum is piled and is connected with a gypsum blending warehouse, and the gypsum blending warehouse is in transmission connection with a microcomputer automatic batching control system component;
the mixed material piling shed conveys the mixed material to a mixed material preparing library, and the mixed material is prepared by the mixed material preparing library and then is transmitted to the microcomputer automatic batching control system.
After the automatic batching control system of the microcomputer in the cement production process carries out batching on clinker, gypsum and mixed materials, the raw materials are transmitted to a roller press, and then are transmitted to a combined grinding system after passing through the roller press;
the combined grinding system is used for transmitting cement powder to a cement storage homogenizing warehouse after the raw materials are ground in a full-face mode, and homogenizing and storing the cement;
the cement stored in the cement storage homogenizing silo can be packaged and unpacked in bulk through a rotary packaging machine, the bagged cement can be delivered out of a factory as bagged cement, and the rotary packaging machine can be unpacked in bulk through the silo side to prepare bulk cement.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A method for calcining silicate clinker by biomass instead of cement kiln fuel comprises a clinker production process and a cement production process, and is characterized in that: the clinker produced by the clinker production process is placed in a clinker homogenizing warehouse, the clinker production process adopts the clinker in the clinker homogenizing warehouse to produce cement, and the clinker production process and the cement production process both use a microcomputer automatic batching control system;
the automatic batching control system is used for acting on batching procedures in a clinker production process and a cement production process, in the clinker production process, the automatic batching control system is used for acting on batching input of a pre-homogenization yard and a clay piling shed, and in the cement production process, the automatic batching control system is used for acting on batching input of clinker allocation, a gypsum piling shed and a mixed material piling shed.
2. The method for preparing the biomass calcined silicate clinker by replacing the cement kiln fuel according to claim 1, is characterized in that: in the clinker production process, raw coal is conveyed to a pre-homogenization shed by the raw coal shed, the pre-homogenization jet is used for pre-homogenizing the raw coal and then conveying the pre-homogenized raw coal to a swept mill, the raw coal after being treated by the swept mill is stacked to a coal powder bin, and the coal powder provides fuel for a decomposing furnace and a rotary kiln;
after mining limestone in the limestone mine, putting the limestone into a limestone crusher for crushing, piling the crushed limestone in a pre-homogenization yard, putting the limestone in the pre-homogenization yard into a microcomputer automatic batching control system, matching the pre-homogenization yard with an iron powder piling shed, and putting iron powder into the microcomputer automatic batching control system by the iron powder piling shed;
the clay piling shed puts clay into the microcomputer automatic batching control system, and is matched with the shale piling shed, and the shale piling shed puts shale into the microcomputer automatic batching control system;
the automatic batching control system of the microcomputer respectively controls the specific gravity of limestone, iron powder, clay and shale, and the effect of automatic batching is realized.
3. The method for preparing the biomass calcined silicate clinker by replacing the cement kiln fuel according to claim 1, is characterized in that: after the automatic batching of the microcomputer automatic batching control system in the clinker production process is finished, the batching is input into a raw material vertical mill, and the raw material vertical mill mixes and refines the batching to prepare cement raw materials;
after the vertical grinding of the raw materials is finished, the raw materials are transmitted to a raw material homogenizing warehouse, the raw materials are conveyed to a five-stage cyclone preheater after being homogenized, and the five-stage cyclone preheater preheats the raw materials;
after the preheating of the raw materials is finished, the raw materials are put into a decomposing furnace and heated, so that ingredients in the raw materials are decomposed and are transmitted into a rotary kiln, and the heated ingredients in the rotary kiln enter a grate cooler through a kiln head;
the grate cooler fully cools the clinker, conveys the cooled clinker to a clinker crusher, crushes the clinker by the clinker crusher, and transmits the crushed clinker to a clinker homogenizing warehouse.
4. The method for preparing the biomass calcined silicate clinker by replacing the cement kiln fuel according to claim 1, is characterized in that: the clinker in the clinker homogenizing silo in the clinker production process can be respectively conveyed to the silo side for bulk loading and the clinker blending process;
the clinker can be bagged in bulk at the warehouse side, the packaged clinker can be directly delivered from a factory in bulk, and the clinker can be directly blended by blending the clinker so as to be convenient for subsequent cement production and use.
5. The method for preparing the biomass calcined silicate clinker by replacing the cement kiln fuel according to claim 1, is characterized in that: the cement production process uses the clinker in the clinker homogenizing warehouse to carry out clinker blending, the blended clinker can be transmitted to a microcomputer automatic batching control system, and the microcomputer automatic batching control system in the cement production process is connected with a gypsum piling shed and a mixing tank piling shed;
the gypsum shed conveys gypsum to the microcomputer automatic batching control system, the gypsum passes through a gypsum crusher in the conveying process, the gypsum crusher crushes the gypsum, the crushed gypsum is stacked and conveyed to a gypsum blending warehouse, and the gypsum blending warehouse is in transmission connection with a microcomputer automatic batching control system component;
the mixed material piling shed conveys the mixed material to a mixed material allocation library, and the mixed material is allocated by the mixed material allocation library and then is transmitted to the microcomputer automatic batching control system.
6. The method for preparing the biomass calcined silicate clinker by replacing the cement kiln fuel according to claim 1, is characterized in that: after the automatic batching control system of the microcomputer in the cement production process is used for batching clinker, gypsum and mixed materials, the raw materials are transmitted to a roller press, and then are transmitted to a combined grinding system after passing through the roller press;
the combined grinding system is used for transmitting cement powder to a cement storage homogenizing warehouse after the raw materials are ground in a full-face mode, and homogenizing and storing the cement;
the cement stored in the cement storage homogenizing silo can be packaged and unpacked in bulk through a rotary packaging machine, the packaged cement can be delivered out of a factory as bagged cement, and the rotary packaging machine can be unpacked in bulk through the silo side to prepare bulk cement.
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| CN202011459532.3A CN112551923A (en) | 2020-12-13 | 2020-12-13 | Biomass-substituted cement kiln fuel calcined silicate clinker and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096278A (en) * | 1993-06-08 | 1994-12-14 | 陈茂林 | Kiln decomposes simple cement producing line and processing method outward |
| CN102898049A (en) * | 2012-11-12 | 2013-01-30 | 枣庄中联水泥有限公司 | Cement clinker produced from shale instead of clay and production process thereof |
| CN203440251U (en) * | 2013-08-12 | 2014-02-19 | 云南省易门县中瑞（集团）建材有限公司 | Automatic cement batching device for cement production line |
| CN105924109A (en) * | 2016-04-21 | 2016-09-07 | 天津市三川恒泰科技有限公司 | Beach sludge composite curing agent as well as preparation method, use method and application thereof |
| CN206872689U (en) * | 2017-03-31 | 2018-01-12 | 四川永祥股份有限公司 | A kind of system using Cement production by Calcium Carbide Sludge |
-
2020
- 2020-12-13 CN CN202011459532.3A patent/CN112551923A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096278A (en) * | 1993-06-08 | 1994-12-14 | 陈茂林 | Kiln decomposes simple cement producing line and processing method outward |
| CN102898049A (en) * | 2012-11-12 | 2013-01-30 | 枣庄中联水泥有限公司 | Cement clinker produced from shale instead of clay and production process thereof |
| CN203440251U (en) * | 2013-08-12 | 2014-02-19 | 云南省易门县中瑞（集团）建材有限公司 | Automatic cement batching device for cement production line |
| CN105924109A (en) * | 2016-04-21 | 2016-09-07 | 天津市三川恒泰科技有限公司 | Beach sludge composite curing agent as well as preparation method, use method and application thereof |
| CN206872689U (en) * | 2017-03-31 | 2018-01-12 | 四川永祥股份有限公司 | A kind of system using Cement production by Calcium Carbide Sludge |
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Application publication date: 20210326 |