CN105435938B - A kind of cement Joint grinding system - Google Patents
A kind of cement Joint grinding system Download PDFInfo
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- CN105435938B CN105435938B CN201511013325.4A CN201511013325A CN105435938B CN 105435938 B CN105435938 B CN 105435938B CN 201511013325 A CN201511013325 A CN 201511013325A CN 105435938 B CN105435938 B CN 105435938B
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- powder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
-
- 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
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
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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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
A kind of cement Joint grinding system of the present invention, raw material enters pre-grinding vertical by feed riser machine and obtains fine powder, middle coarse powder and coarse powder, and the fine powder, middle coarse powder and coarse powder are exported by outer circulation elevator from the import of V-type static powder separating machine into tri- tunnels of sound combined type three composition dividing powder separating machine Hou Fen：The fine powder enters cyclone cluster by the fine powder mouth of cage modle dynamic powder concentrator and is put in storage by being put in storage elevator；The middle coarse powder is put in storage by storage elevator again after obtaining fine powder into ball mill by the middle coarse powder mouth of V-type static powder separating machine；The coarse powder is recycled back to pre-grinding vertical grinding again by the coarse powder mouth of V-type static powder separating machine.The system that the present invention is made up of pre-grinding vertical, ball mill and sound combined type three composition dividing powder separating machine, the adaptability improved for different material, different system state is adjusted by a series of, find optimal balance point, component efficiency is selected in raising, reduce energy consumption so that all get a promotion in terms of product particle pattern and product particle grading.
Description
Technical field
The present invention relates to technical field of cement production, and in particular to a kind of cement scratch system.
Background technology
Cement grinding system mainly has three kinds at present：The combination grinding system of Ball Mill System, pre- milling equipment and ball mill
System, Vertical Mill final grinding system.Ball Mill System running rate is high, cement granules pattern is excellent, good product quality, but mill efficiency it is low,
Power consumption is high, low output；Vertical Mill final grinding system mill efficiency is high, unit power consumption is low, but due to the cement granules grading of its production
And granule-morphology is poor, occur that cement water requirement is big, early strength is bad, and follow-up concrete practices sex chromosome mosaicism and durable
Sex chromosome mosaicism, at this stage using less；The Joint grinding system of pre- milling equipment ball adding grinding machine combines first two grinding system
Advantage, not only mill efficiency is high, but also cement granules feature has also obtained obvious improvement, cement related physical performance compared with
Excellent, cement grinding power consumption is low, and yield is high, and the pre- milling equipment applied to cement industry mainly has roll squeezer and Vertical Mill two at present
Kind, wherein big using the system equipment of roll squeezer, construction investment, system is more complicated, high failure rate, maintaining difficulty.Relatively
In Roller Press Combined Grinding System, Vertical Mill Joint grinding system has the mill efficiency of higher, in product particle pattern and production
It is all more preferable in terms of product grain composition.
The content of the invention
Goal of the invention：Present invention aims to overcome that cement granules grading and granule-morphology are poor in the prior art, water is needed
Amount is big and early strength is bad, there is provided a kind of cement Joint grinding system.
Technical solution：A kind of cement Joint grinding system of the present invention, including feed riser machine, pre-grinding vertical, follow outside
Ring elevator, the sound combined type three composition dividing powder separating machine being composed in series up and down by cage modle dynamic powder concentrator and V-type static powder separating machine,
Ball mill, storage elevator, raw material enter pre-grinding vertical by the feed riser machine and obtain fine powder, middle coarse powder and thick
Powder, the fine powder, middle coarse powder and coarse powder enter sound combined type three by outer circulation elevator from the import of V-type static powder separating machine
Tri- tunnels of composition dividing powder separating machine Hou Fen export：The fine powder enters cyclone cluster by the fine powder mouth of cage modle dynamic powder concentrator and passes through storage
Elevator is put in storage；The middle coarse powder fine powder is obtained into ball mill by the middle coarse powder mouth of V-type static powder separating machine after again by being put in storage
Elevator is put in storage；The coarse powder is recycled back to pre-grinding vertical grinding again by the coarse powder mouth of V-type static powder separating machine.
Further：Feed bin and triple valve are further included, the feed bin is respectively communicated with outer circulation elevator by triple valve and moves
Quiet combined type three composition dividing powder separating machine, when some failures occurs in system, material in outer circulation elevator is put into feed bin by triple valve,
Pre-grinding vertical is recirculated back to by feed riser machine afterwards, guarantee empties pre-grinding vertical, easy to follow-up No Load Start.
Further：The pre-grinding vertical includes back pressure cylinder, main hydraulic cylinder and rocking arm, the rocker arm support of the rocking arm
It is hinged with back pressure cylinder telescopic end, the main hydraulic cylinder telescopic end is pivotally connected with rocking arm tail end, the back pressure cylinder and main hydraulic cylinder
Tail end be articulated with pre-grinding vertical outer wall bearing block, by added on rocking arm one all the time give one thrust of rocking arm the back of the body
Cylinder pressure, has not only acted as the effect of buffer shock-absorbing, and by the mutual cooperation of back pressure cylinder and main hydraulic cylinder, can reach quick
The effect of roller is lifted, the damage of mill body is effectively reduced, extends its service life.
Preferably：The multilayer that the V-type static powder separating machine includes extending to coarse powder mouth from import breaks up powder-separating area and position
In breaing up by powder-separating area and connecting the cavity of the cage modle dynamic powder concentrator and middle coarse powder mouth, every layer is broken up powder-separating area including adjustable
Splicing plate and tunable wind-guiding plate, the adjustable splicing plate angle of regulation range are 0 ° ~ 66 °, point 7 grades of adjustings, tunable wind-guiding plate angle
It is 0 ° ~ 88 ° to spend adjustable range, and point 9 grades of adjustings, obtain different powder down speed and wind speed, and realization is accurate to adjust sorting
Go out the granularity of coarse powder.
Further：The periphery of the cage-type rotor of the cage modle dynamic powder concentrator is equipped with variable vane, adjustable to lead
To blade by regulation blade angulation change blade pitgh, so as to change dusty gas flow velocity.
Further：It is equipped with adjustable counterattack in the cone bucket of the cage modle dynamic powder concentrator to bore, it is high to strike back cone by adjusting
Degree, so as to change cone bucket and counterattack cone gap, coarse powder blanking amount in adjusting, changes internal circulating load, circulating load is improved, so as to improve
Grinding efficiency.
Further：The cage-type rotor is cylinder, eliminates the velocity gradient of powder, ensures material particles sorting
Probability is impartial.
Further：In the ball mill part fine powder by grind tail gather dust feeding storage elevator be put in storage.
Further：Part fine powder passes sequentially through circulating fan in the cyclone cluster and deduster is sent into storage elevator
Storage.
Beneficial effect：（1）A kind of cement joint scratch system of the present invention, raw material by sound combined type three by separating choosing
The cement Joint grinding system that powder machine is combined with pre-grinding vertical and ball mill, by a series of regulating device, on the one hand carries
The high adaptability for different material, different system state, on the other hand by adjusting, finds optimal balance point, improves
Component efficiency is selected, reduces energy consumption, can fast and effectively produce high-quality fine powder, pre-grinding vertical and ball mill in system
Equipment integrate break up, sort, drying function, equipment resistance is low, and voltage loss is low, and system fan energy consumption is low, and in system
Middle coarse powder, coarse powder and the fine powder without storage produced can recirculate regrinding by system circulation style, save former material
Material.
（2）The design that cage modle dynamic powder concentrator and V-type static powder separating machine are connected up and down, can by enter equipment coarse powder,
Middle coarse powder and fine powder efficiently separate, and have a variety of staging hierarchies, and the static state inside V-type static powder separating machine, which is broken up, first selects powder
Area, the multilayer being made up of adjustable the splicing plate and adjustable material guiding board of institute's predetermined angle is broken up, graded plate, ensures good material
Dispersiveness, breaks up and is blown off by the tunable wind-guiding plate of predetermined angle repeatedly, makes to be practically free of fine powder in discharged coarse powder, no electricity
Dynamic dispersing device, difference pressuring loss is small, stable, saves power consumption；Furthermore in cage modle dynamic powder concentrator, when variable-frequency motor starts
Afterwards, annular region of the dust-contained airflow between guide vane and cage-type rotor forms horizontal vortex, work of the middle coarse powder in centrifugal force
Variable vane is thrown to lower, is fallen on after losing kinetic energy by the discharge of middle coarse powder mouth in cone bucket, cage-type rotor powder-separating area is adopted
This vortex plane grading principle, grinding efficiency are high.
Brief description of the drawings
Fig. 1 is a kind of cement scratch system flow chart；
Fig. 2 is sound combined type three composition dividing powder separating machine structure diagram；
Fig. 3 is the close-up schematic view of pre-grinding vertical.
Embodiment
Technical scheme is described further below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of cement Joint grinding system, including feed riser machine 1, pre-grinding vertical, outer circulation elevator
3rd, sound combined type three composition dividing powder separating machine 4, the ball being composed in series by cage modle dynamic powder concentrator 42 and V-type static powder separating machine about 41
Grinding machine 6, storage elevator 11, raw material enter pre-grinding vertical by feed riser machine 1 and obtain fine powder, middle coarse powder and coarse powder,
Fine powder, middle coarse powder and coarse powder enter sound combined type three by outer circulation elevator 3 from the import 434 of V-type static powder separating machine 41
4 Hou Fen of composition dividing powder separating machine, tri- tunnels export：Fine powder is sent into storage elevator 11 into cyclone cluster 8 by fine powder mouth 431 and is put in storage, Huo Zhexian
Storage elevator 11 is finally sent into cyclone cluster 8 by circulating fan 9 and deduster 10 again to be put in storage；Middle coarse powder is by middle coarse powder mouth
432 obtain fine powder into ball mills 6, then are put in storage elevator 11 by 7 feedings of gathering dust of the mill tail of ball mill 6 and are put in storage；Coarse powder is by V-type
The coarse powder mouth 433 of static powder separating machine 41 is recycled back to pre-grinding vertical grinding again, particularly, some due to occurring for anti-locking system
Material occurs during failure to overstock, there is also mounted triple valve 12 and feed bin 5, feed bin 5 is respectively communicated with outer circulation by triple valve 12 and carries
Machine 3 and sound combined type three composition dividing powder separating machine 4 are risen, when breaking down, triple valve generation, which acts, causes thing in outer circulation elevator 3
Material input feed bin 5, then pre-grinding vertical is recirculated back to by feed riser machine 1, guarantee empties pre-grinding vertical, easy to follow-up
System energy No Load Start.
With reference to Fig. 3, pre-grinding vertical includes back pressure cylinder 21, main hydraulic cylinder 22 and rocking arm 23, the rocking arm branch of the rocking arm 23
Frame 24 is hinged with 21 telescopic end of back pressure cylinder, and 22 telescopic end of main hydraulic cylinder is connected with 23 tail end pivot 25 of rocking arm, the back pressure
The tail end of cylinder 21 and main hydraulic cylinder 22 is articulated with pre-grinding vertical outer wall bearing block, by adding one on rocking arm 23 all the time
To the back pressure cylinder 21 of 23 1 thrusts of rocking arm, the effect of buffer shock-absorbing is not only acted as, and pass through back pressure cylinder 21 and main hydraulic pressure
The mutual cooperation of cylinder 22, can reach the effect of quick lift roller.With reference to Fig. 2, sound combined type three composition dividing powder separating machine 4 is moved by cage modle
State powder concentrator 42 and V-type static powder separating machine are composed in series about 41, and V-type static powder separating machine 41 includes extending to slightly from import 434
The multilayer of powder mouth 433 breaks up powder-separating area and positioned at breaing up by powder-separating area and connection cage modle dynamic powder concentrator 42 and middle coarse powder mouth
432 cavity 43, breaing up powder-separating area for every layer includes：It is arranged to the adjustable splicing plate 411 of 0 ° ~ 66 ° angular adjustments, and point 7 grades of angles
Degree is adjusted, and is arranged to the tunable wind-guiding plate 412 of 0 ° ~ 88 ° angular adjustments, and point 9 grades of angular adjustments, is accurately divided by adjusting angle
Select the granularity of coarse powder；Cage modle dynamic powder concentrator 42 is provided with the cage-type rotor 421 for being designed as cylinder, cone bucket 422, adjustable leads
To blade 423 and adjustable counterattack cone 424, variable-frequency motor 425, variable vane 423 is arranged at what variable-frequency motor 425 was driven
421 periphery of cage-type rotor, adjustable counterattack cone 424 are arranged in the cone bucket 422 of 42 lower part of cage modle dynamic powder concentrator, variable-frequency motor
425 set rotating speed according to product fineness requirement, and driving cage-type rotor 421 produces airflow when rotating, and dust-contained airflow is
The annular region set between the variable vane 423 of blade angle and cage-type rotor 421 forms horizontal vortex, middle coarse powder
Variable vane 423 is thrown under the influence of centrifugal force, is fallen on after losing kinetic energy in cone bucket 422, by cone bucket 422 and can
Adjust 424 default gaps of counterattack cone to flow to middle coarse powder mouth 432 and discharge, by a series of regulating device, on the one hand improve pair
In different material, the adaptability of different system state, on the other hand by adjusting, optimal balance point is found, improves choosing point effect
Rate, reduces energy consumption.
Claims (5)
- A kind of 1. cement Joint grinding system, it is characterised in that：Including feed riser machine（1）, pre-grinding vertical, outer circulation lifting Machine（3）, by cage modle dynamic powder concentrator（42）With V-type static powder separating machine（41）The separation choosing of sound combined type three being composed in series up and down Powder machine（4）, ball mill（6）, storage elevator（11）, raw material passes through the feed riser machine（1）Into pre-grinding vertical and obtain To fine powder, middle coarse powder and coarse powder, the fine powder, middle coarse powder and coarse powder pass through outer circulation elevator（3）From V-type static powder separating machine （41）Import（434）Into sound combined type three composition dividing powder separating machine（4）Tri- tunnels of Hou Fen export：The fine powder passes through cage modle dynamic Powder concentrator（42）Fine powder mouth（431）Into cyclone cluster（8）And by being put in storage elevator（11）Storage；The middle coarse powder passes through V Type static powder separating machine（41）Middle coarse powder mouth（432）Into ball mill（6）Obtain after fine powder again by storage elevator（11）Storage； The coarse powder is by V-type static powder separating machine（41）Coarse powder mouth（433）It is recycled back to pre-grinding vertical grinding again；The cage modle dynamic powder concentrator（42）It is provided with the cage-type rotor for being designed as cylinder（421）, cone bucket（422）, adjustable lead To blade（423）With adjustable counterattack cone（424）, variable-frequency motor（425）, variable vane（423）It is arranged at variable-frequency motor （425）The cage-type rotor driven（421）Periphery, adjustable counterattack cone（424）It is arranged at cage modle dynamic powder concentrator（42）Lower part Cone bucket（422）It is interior, variable-frequency motor（425）Rotating speed is set according to product fineness requirement, drives cage-type rotor（421）Produced during rotation Raw airflow, dust-contained airflow are setting the variable vane of blade angle（423）With cage-type rotor（421）Between Annular region forms horizontal vortex, and middle coarse powder is thrown to variable vane under the influence of centrifugal force（423）, after losing kinetic energy Fall on cone bucket（422）In, pass through cone bucket（422）With adjustable counterattack cone（424）Default gap flows to middle coarse powder mouth（432）Row Go out；The V-type static powder separating machine（41）Including from import（434）Extend to coarse powder mouth（433）Multilayer break up powder-separating area and Positioned at breaing up by powder-separating area and the connection cage modle dynamic powder concentrator（42）And middle coarse powder mouth（432）Cavity（43）, every layer is beaten Dissipating powder-separating area includes adjustable splicing plate（411）And tunable wind-guiding plate（412）, the adjustable splicing plate（411）Angle of regulation range For 0 ° ~ 66 °, point 7 grades of adjustings, tunable wind-guiding plate（412）Angle of regulation range is 0 ° ~ 88 °, point 9 grades of adjustings.
- A kind of 2. cement Joint grinding system according to claim 1, it is characterised in that：Further include feed bin（5）And threeway Valve（12）, the feed bin（5）Pass through triple valve（12）It is respectively communicated with outer circulation elevator（3）Powder is selected with the separation of sound combined type three Machine（4）.
- A kind of 3. cement Joint grinding system according to claim 1, it is characterised in that：The pre-grinding vertical includes the back of the body Cylinder pressure（21）, main hydraulic cylinder（22）And rocking arm（23）, the rocking arm（23）Rocker arm support（24）With back pressure cylinder（21）Telescopic end It is hinged, the main hydraulic cylinder（22）Telescopic end and rocking arm（23）Tail end pivot（25）Connection, the back pressure cylinder（21）With main hydraulic pressure Cylinder（22）Tail end be articulated with pre-grinding vertical outer wall bearing block.
- A kind of 4. cement Joint grinding system according to claim 1 or 2, it is characterised in that：The ball mill（6）Middle part Fine powder is divided to gather dust by grinding tail（7）It is sent into storage elevator（11）Storage.
- A kind of 5. cement Joint grinding system according to claim 1 or 2, it is characterised in that：The cyclone cluster（8）Middle part Fine powder is divided to pass sequentially through circulating fan（9）And deduster（10）It is sent into storage elevator（11）Storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013325.4A CN105435938B (en) | 2015-12-31 | 2015-12-31 | A kind of cement Joint grinding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013325.4A CN105435938B (en) | 2015-12-31 | 2015-12-31 | A kind of cement Joint grinding system |
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| CN105435938A CN105435938A (en) | 2016-03-30 |
| CN105435938B true CN105435938B (en) | 2018-04-27 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552199A (en) * | 2016-07-01 | 2018-01-09 | 南京凯盛国际工程有限公司 | Outer circulation vertical mill grinding process system |
| CN106238188B (en) * | 2016-08-31 | 2019-04-09 | 宜宾市天顺建材集团股份有限公司 | Respective grinding process at times |
| CN107537767B (en) * | 2017-09-19 | 2023-09-15 | 安徽理工大学 | Two-degree-of-freedom oscillating screen |
| CN108927275A (en) * | 2018-08-13 | 2018-12-04 | 南京凯盛国际工程有限公司 | Combined type cement grinding system and method suitable for high moisture content material |
| CN109092684A (en) * | 2018-08-28 | 2018-12-28 | 中建材（合肥）粉体科技装备有限公司 | high-efficient powder concentrator |
| CN111589561A (en) * | 2020-05-15 | 2020-08-28 | 中建材（合肥）粉体科技装备有限公司 | Powder component and particle size control system and control method thereof |
| CN112387592A (en) * | 2020-10-27 | 2021-02-23 | 盐城市盐富环保设备有限公司 | Combined type grit selection machine |
| CN112473994A (en) * | 2020-11-30 | 2021-03-12 | 南京凯盛国际工程有限公司 | Cement raw material roller press final grinding system and technological process thereof |
| CN113289750A (en) * | 2021-04-30 | 2021-08-24 | 溧阳中材重型机器有限公司 | Steel slag grinding process |
| CN116966991B (en) * | 2023-09-07 | 2024-01-30 | 中煤地质集团有限公司 | External circulation type gangue crushing treatment system |
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| CN203448169U (en) * | 2013-08-15 | 2014-02-26 | 溧阳中材重型机器有限公司 | Grinding roller limiting and buffering device of vertical grinder |
| CN204746521U (en) * | 2015-07-27 | 2015-11-11 | 南京凯盛国际工程有限公司 | Take stationary flow metering device's half whole grinding system of cement |
| CN205340999U (en) * | 2015-12-31 | 2016-06-29 | 溧阳中材重型机器有限公司 | Grinding system is united to cement |
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| JP2007136299A (en) * | 2005-11-16 | 2007-06-07 | Ube Machinery Corporation Ltd | Cement clinker grinding facility |
| CN102335656A (en) * | 2011-06-22 | 2012-02-01 | 江苏吉能达建材设备有限公司 | Quadric-separated winnowing grader |
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| CN105435938A (en) | 2016-03-30 |
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