CN105435938B - A kind of cement Joint grinding system - Google Patents

A kind of cement Joint grinding system Download PDF

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Publication number
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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China
Prior art keywords
powder
coarse powder
grinding
storage
machine
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CN201511013325.4A
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CN105435938A (en
Inventor
吴楠
谈志中
陈悠
封士洋
王跃军
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SINOMA-LIYANG HEAVY MACHINERY Co Ltd
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SINOMA-LIYANG HEAVY MACHINERY Co Ltd
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary 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
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary 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
    • B02C23/18Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/20Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/48Clinker treatment
    • C04B7/52Grinding ; After-treatment of ground cement
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

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

A kind of cement Joint grinding system
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)

  1. 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.
  2. 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).
  3. 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.
  4. 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.
  5. 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.
CN201511013325.4A 2015-12-31 2015-12-31 A kind of cement Joint grinding system Active CN105435938B (en)

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CN105435938B true CN105435938B (en) 2018-04-27

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
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
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
CN113289750A (en) * 2021-04-30 2021-08-24 溧阳中材重型机器有限公司 Steel slag grinding process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102600923A (en) * 2012-03-12 2012-07-25 成都利君实业股份有限公司 Magnetite finish grinding system and grinding method thereof
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102600923A (en) * 2012-03-12 2012-07-25 成都利君实业股份有限公司 Magnetite finish grinding system and grinding method thereof
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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