CN110372235A - A kind of cement raw material batching system and distribution - Google Patents
A kind of cement raw material batching system and distribution Download PDFInfo
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- CN110372235A CN110372235A CN201910736684.4A CN201910736684A CN110372235A CN 110372235 A CN110372235 A CN 110372235A CN 201910736684 A CN201910736684 A CN 201910736684A CN 110372235 A CN110372235 A CN 110372235A
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- raw material
- cement
- surplus
- oxide content
- weight
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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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
A kind of cement raw material batching system and distribution, proportion for raw material raw material in cement generating process, to produce the raw material for meeting quality requirement, the detection cycle for raw material milling sample is wherein determined according to the batch of raw material raw material, adjust the proportion of raw meal proportioning in time to the composition transfer of raw material, it avoids that the influence caused for cement quality can not be adjusted in time, to improve the quality of manufacture of cement.
Description
Technical field
The present invention relates to the technical field of cement processing and manufacturing, a kind of matching system more particularly, to cement ingredient and
Distribution.
Background technique
After raw material is worn into raw meal powder in manufacture of cement, carries out calcining and forms clinker, chamotte powder is then worn into cement again,
Each stage has an important influence subsequent production.Raw meal proportioning is one of manufacture of cement important link.Generally use stone in cement plant
Lime stone, clay, iron powder, sandstone as production cement raw material, the task of raw meal proportioning be according to known raw material chemistry at
Point and the requirement to clinker, the proportion of various raw materials is obtained, to produce the raw meal powder for meeting certain mass and output demand.
Current many manufacturers are controlled according further to the working experience of site operation personnel by manual adjustment.Laboratory every
Specific period such as 1 hour to collection in worksite raw material sample and chemically examines, and report gives raw meal proportioning operator after result of laboratory test comes out,
Dispensing operation person is according to result of laboratory test and experience adjustments raw material proportioning.Production efficiency is low, energy consumption is high, unstable quality, operator
Member's large labor intensity is phenomenon generally existing in cement raw mix proportioning production.
In the prior art in order to improve the efficiency of cement production process, satisfied control effect is obtained, working efficiency is improved,
The proportion of cement slurry is carried out automatically controlling according to the testing result of raw material milling sample using control system.It is equally
Proportion adjustment is carried out according to the result for carrying out periodic samples for raw material milling sample, however chemical component is not pressed in raw material
It is changed according to detection cycle, especially the raw material of different sources different batches, chemical component difference is larger, occurs in raw material
The prior art can not adjust in time when variation, can only be adjusted according to testing result after a detection cycle,
The cement that may cause in the detection cycle is unable to reach quality requirement.
Existing technical literature: CN104339453A.
Summary of the invention
The present invention provides a kind of cement raw material batching system and distribution, can for raw material composition transfer it is timely
The proportion for adjusting raw meal proportioning, avoids that the influence caused for cement quality can not be adjusted in time, to improve manufacture of cement
Quality.
A kind of cement raw material batching system, comprising: raw material weight batch information storage unit, for storing matching for different material
The oxide content of the weight of each batch raw material and different material present lot in feed bin；Raw material weight sensor, sets
It is placed on ingredient conveyor, for determining the conveying weight of each moment different material；Consumption of raw materials rate determining section, is based on
The testing result of raw material weight sensor determines the unit time consumption of current time different material；Raw material surplus determining section,
The weight and consumption of raw materials rate of the present lot of its different material based on the storage of raw material weight batch information storage unit are true
Determine the unit time consumption that portion determines, determines the surplus of different material present lot；Composition measurement portion, can be for grinding
The milling sampling of machine outlet is detected, and determines each oxide content in milling；Be milled information storage part, storage component measurement
The measurement result and time of measuring in portion；Acquisition time determining section determines that each raw material is current based on raw material surplus determining section
The surplus of batch, unit time consumption and preset raw material damper mass determine composition measurement portion acquisition milling detection
Time；Control unit stores information based on the current measurement result in composition measurement portion and milling information storage part, determines different
The proportion scale of raw material.
Further, the batch bin of the raw material is first using the raw material first to put in storage preparing cement.
Further, the oxide is calcium oxide, silica, aluminum oxide and di-iron trioxide.
Further, present lot surplus W of the acquisition time determining section in single raw materialiWhen being zero, t moment is determined
Composition measurement portion acquisition milling detection, t=M/S are carried out afterwardsi+ t1, wherein M is preset raw material damper mass, SiIt is zero for surplus
Raw material unit time consumption, t1 be the raw material launch to flour mill export elapsed time.
Further, the different material is respectively lime stone, silica, clay and iron powder.
Further, control unit is based on each oxide content in the determining milling of composition measurement portion detection, more than present lot
Amount is the oxide content of the raw material other than zero raw material, determines that each oxide contains in next batch raw material that the surplus is zero raw material
Amount updates the oxide content of different material present lot in raw material weight batch information storage unit；Then according to different material
The oxide content of present lot, and the expectation oxide content of production cement, determine the proportion scale of different material.
As another aspect of the present invention, a kind of cement raw mix proportioning method is provided, it is raw using above-mentioned cement
Expect feed proportioning system, includes the following steps: the oxide content of the batch bin initial feed of (1) measurement different material, stored
The initial ingredients of different material are determined according to the expectation oxide content of production cement to raw material weight batch information storage unit
Than；(2) raw material in assistant ingredients storehouse is transported to flour mill by corresponding ingredient conveyor according to charge ratio and is milled, and leads to
Cross the conveying weight that raw material weight sensor acquires each moment different material；Consumption of raw materials rate determining section is based on raw material weight
The testing result of sensor determines the unit time consumption of current time different material；Raw material surplus determining section is based on raw material
What the weight and consumption of raw materials rate determining section of the present lot of the different material of weight batch information storage unit storage determined
Unit time consumption determines the surplus of different material present lot；(3) when the present lot surplus of single raw material is zero,
The raw material milling progress composition measurement portion detection that grinding exports is acquired after determining t moment, determines that each oxide contains in raw material milling
It measures, wherein t=M/Si+ t1, wherein M is preset raw material damper mass, SiFor the unit time consumption for the raw material that surplus is zero,
T1 is that the raw material is launched to flour mill outlet elapsed time；(4) control unit is based in the determining milling of composition measurement portion detection
Each oxide content, present lot surplus are the oxide content of the raw material other than zero raw material, determine that the surplus is zero raw material
Each oxide content in next batch raw material updates the oxidation of different material present lot in raw material weight batch information storage unit
Object content；(5) control unit contains according to the oxide content of different material present lot, and the expectation oxide of production cement
Amount, determines the proportion scale of different material；(6) step (2)-(5) are repeated until this batch of manufacture of cement finishes.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, embodiment will be used simply to be situated between the present invention below
Continue, it should be apparent that, be described below in be only one embodiment of the present of invention, for those of ordinary skill in the art come
It says, without any creative labor, other technical solutions can also be obtained according to these embodiments, also belonged to
Disclosure of the invention range.
The cement raw material batching system of the embodiment of the present invention, for the proportion of raw material raw material in cement generating process, with life
Output meets the raw material of quality requirement, raw material weight batch information storage unit, raw material weight sensor, the determination of consumption of raw materials rate
Portion, raw material surplus determining section, composition measurement portion, be milled information storage part, acquisition time determining section and control unit.
The raw material of cement slurry includes lime stone, silica, clay and iron powder, by transport device by different raw materials
Respective batch bin is transported at source.The weight of each batch different material is stored in raw material weight batch information storage unit.
For raw material when producing and using using the principle of first in first out, i.e. batch bin is first using first entering preparing cement in feed proportioning storehouse
The raw material in storehouse.
Raw material when manufacture of cement in batch bin can be transported to flour mill by corresponding ingredient conveyor and carry out raw material
Milling, raw material weight sensor is set on ingredient conveyor, for determining the conveying weight of each moment different material.Raw material
Wear rate determining section determines that the unit time of current time different material disappears based on the testing result of raw material weight sensor
Consumption.Raw material surplus determining section, the weight of the present lot of the different material based on the storage of raw material weight batch information storage unit
Measure TiAnd the unit time consumption S that consumption of raw materials rate determining section determinesi, determine the surplus W of different material present loti
Equal to Ti-Siti, wherein tiFor the elapsed time of different material present lot.Composition measurement portion can export flour mill
Raw material milling sampling detected, determine milling in each oxide content；Wherein oxide be calcium oxide, silica, three
Al 2 O and di-iron trioxide, composition measurement portion can be used each oxide in such as fluorescence analyser measurement raw material milling and contain
Amount.
Acquisition time determining section determines the surplus W of each raw material present lot based on raw material surplus determining sectioni, unit
Time loss amount SiAnd preset raw material damper mass M, determine the time of composition measurement portion acquisition milling detection.Specifically,
Present lot surplus W of the acquisition time determining section in single raw materialiWhen being zero, the acquisition of composition measurement portion is carried out after determining t moment
Milling detection, t=M/Si+ t1, wherein M is in order to avoid batch is not completely used up and preset raw material buffering before the raw material list
Quality, SiFor the unit time consumption for the raw material that surplus is zero, t1 is that the raw material is launched to flour mill outlet elapsed time.
Control unit stores information based on the current measurement result in composition measurement portion and milling information storage part, determines
The proportion scale of different material.Control unit is after composition measurement portion sample detecting, based on the determining milling of composition measurement portion detection
In each oxide content, present lot surplus is the oxide content of the raw material other than zero raw material, determines the surplus according to formula
It is each oxide content in the next batch raw material of zero raw material:
,
Wherein c1, c2, c3, c4 represent the content of calcium oxide in 4 kinds of raw material；S1, s2, s3, s4 represent 4 kinds of former materials
The content of silica in material；A1, a2, a3, a4 represent the content of aluminum oxide in 4 kinds of raw material；F1, f2, f3, f4
Respectively represent the content of di-iron trioxide in 4 kinds of raw material；X1, x2, x3, x4 represent the proportion of 4 kinds of raw materials: C is indicated
The percentage of chemical element calcium oxide content in raw material；A indicates the percentage of chemical element aluminum oxide content in raw material；
F indicates the percentage of chemical element ferric oxide content in raw material；S indicates chemical element dioxide-containing silica in raw material
Percentage.In formula, C, S, A, F are the current measurement result in composition measurement portion, and x1, x2, x3, x4 are that current raw material is matched
Than in addition to present lot surplus WiOutside the raw material for being zero, oxide content can be believed by raw material weight batch in raw material
The present lot oxide content for ceasing storage unit storage obtains；It is zero raw material that the unknown surplus, which can be calculated, by above formula
Each oxide content in next batch raw material.Control unit is after determining the next batch oxide content of the raw material, more new raw material
The oxide content value of different material present lot in weight batch information storage unit.Controller is according to material weight batch information
In storage unit after the oxide content of different oxide present lots, then contained according to the oxide of different material present lot
Amount, and the expectation oxide content of production cement, the proportion scale of different material are determined by above-mentioned formula, in the formula
In, C, S, A, F are the oxide content expected, the oxide content of batch passes through raw material weight batch information before various raw material lists
The present lot oxide content of storage unit storage obtains, and x1, x2, x3, x4 are unknown quantity, and calculating above-mentioned equation can determine
The proportion updated value of each raw material.
The cement raw mix proportioning method of the embodiment of the present invention uses above-mentioned cement raw material batching system, including as follows
Step: (1) oxide content of the batch bin initial feed of different material is measured, raw material weight batch information is stored to and deposits
Storage portion determines the initial ingredients ratio of different material according to the expectation oxide content of production cement；(2) in assistant ingredients storehouse
Raw material is transported to flour mill by corresponding ingredient conveyor according to charge ratio and is milled, and is acquired by raw material weight sensor
The conveying weight of each moment different material；Testing result of the consumption of raw materials rate determining section based on raw material weight sensor, really
Determine the unit time consumption of current time different material；Raw material surplus determining section is based on raw material weight batch information storage unit and deposits
The unit time consumption that the weight and consumption of raw materials rate determining section of the present lot of the different material of storage determine determines not
With the surplus of raw material present lot；(3) when the present lot surplus of single raw material is zero, acquisition grinding goes out after determining t moment
The raw material milling of mouth carries out the detection of composition measurement portion, determines each oxide content in raw material milling, wherein t=M/Si+ t1, wherein M
For preset raw material damper mass, SiFor the unit time consumption for the raw material that surplus is zero, t1 is that the raw material is launched to grinding
Machine exports elapsed time；(4) control unit is based on each oxide content in the determining milling of composition measurement portion detection, present lot
Surplus is the oxide content of the raw material other than zero raw material, determines each oxide in next batch raw material that the surplus is zero raw material
Content updates the oxide content of different material present lot in raw material weight batch information storage unit；(5) control unit is not according to
With the oxide content of raw material present lot, and the expectation oxide content of production cement, the charge ratio of different material is determined
Example；(6) step (2)-(5) are repeated until this batch of manufacture of cement finishes.
All references mentioned in the present invention all incorporated by reference in this application, are individually recited just as each document
As with reference to such.In addition, it should also be understood that, the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not intended to limit the present invention
Protection scope.Particular features, structures, materials, or characteristics described in the present invention can in any one or more embodiments or
It can be combined in any suitable manner in example.In addition, without conflicting with each other, those skilled in the art can illustrate this
The feature of different embodiments or examples and different embodiments or examples described in book is combined.It is all in the present invention
Spirit and principle within any modification, equivalent replacement, improvement and so on, be included within the scope of protection of the present invention.
Claims (7)
1. a kind of cement raw material batching system, comprising: raw material weight batch information storage unit, for storing the ingredient of different material
The oxide content of the weight of each batch raw material and different material present lot in storehouse；Raw material weight sensor, setting
In on ingredient conveyor, for determining the conveying weight of each moment different material；Consumption of raw materials rate determining section, based on original
The testing result for expecting weight sensor, determines the unit time consumption of current time different material；Raw material surplus determining section,
It is determined based on the weight and consumption of raw materials rate of the present lot of the different material of raw material weight batch information storage unit storage
The unit time consumption that portion determines, determines the surplus of different material present lot；Composition measurement portion, can be for flour mill
The raw material milling sampling of outlet is detected, and determines each oxide content in raw material milling；Be milled information storage part, storage at
Divide the measurement result and time of measuring of measurement portion；Acquisition time determining section determines each original based on raw material surplus determining section
Expect the surplus of present lot, unit time consumption and preset raw material damper mass, determines composition measurement portion acquisition milling
The time of detection；Control unit stores information based on the current measurement result in composition measurement portion and milling information storage part, really
Determine the proportion scale of different material.
2. cement raw material batching system according to claim 1, it is characterised in that: the batch bin of the raw material is preparing water
Mud is first using the raw material first to put in storage.
3. cement raw material batching system according to claim 2, it is characterised in that: the oxide is calcium oxide, dioxy
SiClx, aluminum oxide and di-iron trioxide etc..
4. cement raw material batching system according to claim 3, it is characterised in that: the acquisition time determining section is single
The present lot surplus W of raw materialiWhen being zero, composition measurement portion acquisition milling detection, t=M/S are carried out after determining t momenti+ t1,
Middle M is preset raw material damper mass, SiFor the unit time consumption for the raw material that surplus is zero, t1 is that the raw material is launched to powder
Grinding machine exports elapsed time.
5. automatic Mixed Materials System of Cement according to claim 4, it is characterised in that: the different material is respectively lime stone, silicon
Stone, clay and iron powder.
6. cement raw material batching system according to claim 5, it is characterised in that: the composition measurement portion uses fluorescence point
Analyzer measures each oxide content in raw material milling.
7. a kind of cement raw mix proportioning method, using cement raw material batching system described in one of the claims, including
Following steps: (1) measuring the oxide content of the batch bin initial feed of different material, is stored to raw material weight batch letter
Storage unit is ceased, according to the expectation oxide content of production cement, determines the initial ingredients ratio of different material；(2) assistant ingredients storehouse
Interior raw material is transported to flour mill by corresponding ingredient conveyor according to charge ratio and is milled, and passes through raw material weight sensor
Acquire the conveying weight of each moment different material；Detection knot of the consumption of raw materials rate determining section based on raw material weight sensor
Fruit determines the unit time consumption of current time different material；Raw material surplus determining section is based on raw material weight batch information and deposits
The unit time consumption that the weight and consumption of raw materials rate determining section of the present lot of the different material of storage portion storage determine,
Determine the surplus of different material present lot；(3) it when the present lot surplus of single raw material is zero, is acquired after determining t moment
The raw material milling of grinding outlet carries out the detection of composition measurement portion, determines each oxide content in raw material milling, wherein t=M/Si+
T1, wherein M is preset raw material damper mass, SiFor the unit time consumption for the raw material that surplus is zero, t1 is raw material throwing
It is put into flour mill outlet elapsed time；(4) control unit detects each oxide content in determining milling based on composition measurement portion,
Present lot surplus is the oxide content of the raw material other than zero raw material, is determined in next batch raw material that the surplus is zero raw material
Each oxide content updates the oxide content of different material present lot in raw material weight batch information storage unit；(5) it controls
Portion determines different material according to the oxide content of different material present lot, and the expectation oxide content of production cement
Proportion scale；(6) step (2)-(5) are repeated until this batch of manufacture of cement finishes.
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Cited By (1)
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