CN101569871A - Discharging device of horizontal planetary ball mill - Google Patents
Discharging device of horizontal planetary ball mill Download PDFInfo
- Publication number
- CN101569871A CN101569871A CNA2009100329982A CN200910032998A CN101569871A CN 101569871 A CN101569871 A CN 101569871A CN A2009100329982 A CNA2009100329982 A CN A2009100329982A CN 200910032998 A CN200910032998 A CN 200910032998A CN 101569871 A CN101569871 A CN 101569871A
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- Prior art keywords
- grate plate
- planetary ball
- plate
- drawing mechanism
- sieve
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- 238000007599 discharging Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000008520 organization Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000012216 screening Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 208000028659 discharge Diseases 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The invention discloses a discharging device of a horizontal planetary ball mill, which comprises a front grate plate, a sieve, a blind plate cone, a discharging pipe and a powder collecting cover, wherein the front grate plate is arranged on the discharging end surface in a planetary grinding cylinder, the sieve is arranged behind the front grate plate, the blind plate cone covers behind the sieve, one end of the discharging pipe is connected with the rear part of the blind plate cone, the other end of the discharging pipe is connected with the powder collecting cover, and a material conveying internal spiral device is arranged in the discharging pipe. The sieve is a cone frustum-shaped sieve cylinder coaxially mounted with the planetary mill cylinder, and the squirrel-cage-shaped cylinder is mounted between the front grate plate and the cone frustum-shaped sieve cylinder, so that the invention realizes the center discharge of continuous planetary mill materials, avoids the direct impact of grinding steel balls in the planetary mill on the discharging device, and prolongs the service life of the discharging device; the screening quality is improved, the external circulation quantity of the powder is reduced, the power consumption of grinding is saved, the maintenance and the replacement of parts are convenient, the dust raising is effectively prevented, and the improvement of the operating environment is facilitated.
Description
Technical field
The present invention relates to a kind of ball mill, specifically is a kind of drawing mechanism of realizing the horizontal planetary ball mill that serialization is produced.
Background technology
Horizontal planetary ball mill (hereinafter to be referred as planetary mills), be to be that symmetrical centre is horizontally disposed with a plurality of grinding tubes with the main shaft, each grinding tube is when with the main shaft being the center revolution, grinding tube self also carries out rotation, abrasive body (being generally steel ball, steel section) is housed in the grinding tube, when relying on the cylindrical shell revolution abrasive body elevate a turnable ladder and the impact energy that falls is ground material.In the continuous firing process, impact comminution of carrying out and rolling repeatedly, slip are ground, and lump material is diminished gradually, become fine powder.
Because planetary mills has the work of a plurality of grinding tube simultaneously, working (machining) efficiency is very high, but realize serialization, suitability for industrialized production, need also to guarantee that material can be transported in each grinding tube in the planetary mills continuously, equably goes, the powder that processes is simultaneously also exported from the grinding tube continuously, if the powder that the grinding tube processes can not be exported timely, then can form the short slab of system, greatly influence the operational efficiency of planetary mills.
A Chinese utility model patent " continous way dry method planetary ball mill " (publication number CN2377001Y, an open day 2000.5.10) a kind of center drawing mechanism of similar cage-shaped structure has been proposed, it adopts the discharge method with wind band material, but use in reality, there is technical difficulty in the air inducing of this scheme, can't realize.Simultaneously, the direct impact that the projecting inward open circles bench-type guard of mill tube often is subjected to grinding steel ball, easily generation is ruptured and is influenced ordinary production.In case it is damage, replacing need be taken off mill tube, very inconvenient.Another Chinese invention patent " assembly that gathers materials of large planetary ball mill " (publication number CN1846862A, open day 2006.10.18) peripheral discharge method has been proposed, because the discharging cover cooperates contact area big with the sound of planet mill tube, has increased the running resistance of mill tube, system energy consumption improves; In addition, the powder behind the grinding is by being located at the notch on the planetary mills periphery, at the centrifugal action planet mill tube of being dished out.Because centrifugal force is bigger, it is oversize to add sound fitted seal periphery, and on-the-spotly always there is certain airborne dust in sealing difficulty fully, and working environment is undesirable.Simultaneously because the powder of powder delivery mill tube sieves, exist inevitably thicker, do not have the good particle of grinding to go out mill, increased the grinding system energy consumption.
Summary of the invention
Technical problem to be solved by this invention provides the drawing mechanism of the horizontal planetary ball mill that a kind of security is good, screening is meticulous.
In order to address the above problem, the drawing mechanism of horizontal planetary ball mill of the present invention, comprise preceding grate plate, sieve tool, blind plate awl, discharge nozzle and collection powder cover, grate plate is installed in the discharging end face in the planet mill tube before described, after the grate plate, after the blind plate awl covered on the sieve tool, discharge nozzle one end connected blind plate awl rear portion before the sieve tool was installed in, the other end connects collection powder cover, and feeding device is housed in discharge nozzle.
Above-mentioned sieve tool is one and the coaxial mounted truncated cone screen drum of planet mill tube preferably, the grate plate outside before this truncated cone screen drum covers on.
On the truncated cone inboard wall of riddle drum, some lifting blades can be installed radially.Installed surface place near the truncated cone screen drum on preceding grate plate is provided with the coarse fodder tap.
The internal helical blades that in described blind plate awl, is provided with.The inside spin conveying device is set in discharge nozzle.
Operation principle of the present invention:
Material in the planet mill tube is under the pressure of upstream material promotes, and by realize the milling crude separation of body (ball or grind the steel section) and material of preceding grate plate, preceding grate plate is that the through hole that has suitable aperture on metallic plate is made, and this aperture can not be passed through the body of milling.Because the structural strength of preceding grate plate is higher,, improved the reliability of equipment so the body that is difficult for being milled breaks.Powder thickness inequality by preceding grate plate enters the truncated cone screen drum that wall has sieve aperture again, and the gap on the sieve aperture is generally 0.01-8mm, the lifting blade lifting disperses powder on the barrel through being located at, spread on the compass screen surface of screen drum, under action of centrifugal force, realize the screening of thickness powder.The good coarse granule of staying on the compass screen surface of not grinding can be discharged through preceding grate plate coarse fodder tap at the effect lower edge on centrifugal force and screen drum inclined plane barrel centrifugal motion, returns and continues grinding in the grinding zone; And the thinner powder under the sieve falls into the outer blind plate cone of screen drum, under the internal helical blades that is provided with in the blind plate cone promotes, discharge the awl tube, enter in the quill shaft discharge nozzle that communicates with the planet mill tube, under the effect of inside spin conveying device, finally be transferred out mill tube and enter collection powder wind-collecting cover outward, be transported to the processing procedure of next stage after the collection.
Can not in time handle when preventing that the powder inlet is big, can be before described the grate plate center drilling, and mouse cage shape cylinder is installed between tapping and truncated cone screen drum, the punishment in advance gap of mouse cage shape cylinder is less than the abrasive body diameter, mouse cage shape cylinder rear end face is installed the back grate plate, and this back grate plate is also as the small end face of truncated cone screen drum.
This mouse cage shape cylinder is equivalent to the charge level control device in the planet mill tube, material lagging in mill tube is too many, material level increases gradually, in case surpass preceding grate plate center drilling position, material enters mouse cage shape cylinder rapidly, slit by mouse cage enters into and sieves separation on the screen drum immediately, guarantees the normal operation of the stable and mill tube of material level in the mill tube.Be arranged on the rectangular opening or the circular hole that have on the back grate plate on the mouse cage about various types of gap 1～5mm, main purpose is to guarantee mill inner ventilation, and certain powder ability of crossing is also arranged.
For the ease of checking screen centrifuge the grade operating position and the replacing of device, consider that the diameter of planet mill tube is generally less, the people can not directly enter in the mill tube and check, change.Grate plate, sieve tool, blind plate awl are the partitioned organization of standard before of the present invention, and every block structure adopts removable fasteners to be mutually permanently connected.
Be provided with manhole at planet mill tube wall, the position of grate plate and blind plate awl is provided with two supports before the manhole edge correspondence, and the outer rim of preceding grate plate and blind plate awl has with the adaptive supporting construction of support and is supported on respectively on two supports.And adopt the rotational support structure between two supports and preceding grate plate and the blind plate awl.When needs overhaul, only need the maintenance orifice plate is opened, rotate grate plate, centrifugal sieve plate, blind plate cone, piecemeal takes out, changes just.
Advantage of the present invention:
1) realizes the center discharging of serialization planetary mills material, improved the ability of planetary mills suitability for industrialized production.
2) avoid the grinding steel ball in the planetary mills directly to the impact of drawing mechanism, improved the service life of drawing mechanism;
3) go out meticulousr screening plant is set before the mill tube by powder, guarantee that the powder quality that the planet mill tube improves, reduce circulating load, reach the purpose of economize on electricity, show, can economize on electricity about 5% through the energy efficient test.
4) preceding grate plate, sieve tool, blind plate are bored these workpieces and are all adopted the partitioned organization form, can safeguard easily and change by manhole.
5) adopt the center discharge method, prevent airborne dust effectively, help the improvement of operating environment.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 is the partial enlarged drawing at A place among Fig. 1,
Fig. 3 is the schematic diagram after preceding grate plate, mouse cage shape cylinder, screen drum and the combination of blind plate awl, and wherein a is a front view, and b is a left view,
Fig. 4 is screen drum and sieve aperture structure thereof, and wherein a is first kind of sieve aperture structure, and b is second kind of sieve aperture structure,
Fig. 5 be among Fig. 1 the B place partial enlarged drawing.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is specified.
As shown in Figure 1, the drawing mechanism of horizontal planetary ball mill of the present invention, grate plate 1, truncated cone screen drum 2, blind plate awl 3, discharge nozzle 4, collection powder cover 5, mouse cage shape cylinder 8, back grate plate 9 and inside spin conveying device 11 before mainly comprising, wherein:
Among Fig. 2, preceding grate plate 1 is installed in the discharging end face in the planet mill tube 6, after truncated cone screen drum 2 is installed in preceding grate plate 1, and after blind plate awl 3 covers on truncated cone screen drum 2, the big end of truncated cone screen drum 2 and blind plate awl 3 all outwards is bent to form an annular installed surface, two annular installed surfaces are stacked are attached to before grate plate 1 outer wall, and fixedly connected with preceding grate plate 1 by securing member.And blind plate is bored the internal helical blades that is provided with convey materials in 3.Discharge nozzle 4 one ends connect blind plate and bore 3 centre bores, and the other end connects collection powder cover 5, and inside spin conveying device 11 is housed in discharge nozzle 4.
As Fig. 3, preceding grate plate 1 center has the hole, and mouse cage shape cylinder 8 is installed between tapping and truncated cone screen drum, the punishment in advance gap of mouse cage shape cylinder 8 is less than the abrasive body diameter, mouse cage shape cylinder 8 rear end faces are installed back grate plate 9, can have rectangular opening or circular hole about various types of gap 1～5mm on the back grate plate 9, be used to guarantee mill inner ventilation, certain powder ability of crossing is also arranged.Installed surface place near the truncated cone screen drum on preceding grate plate 1 is provided with coarse fodder tap 10.Some lifting blades 7 are installed on the inwall of truncated cone screen drum 2 radially, distribution sieve aperture 14 on the inwall, the shape of sieve aperture is illustrated in figure 4 as horizontal or vertical rectangular opening or circular port, hole width 0.01-20mm, percent opening 10-95%.
As shown in Figure 5, preceding grate plate 1, sieve tool 2, blind plate awl 3 are the partitioned organization of standard, and every block structure adopts removable fasteners to be mutually permanently connected.Be provided with manhole 12 at planet mill tube wall, the position of grate plate 1 and blind plate awl 3 is provided with two supports 13 before the manhole 12 edge correspondences, the outer rim and the support 13 of preceding grate plate 1 and blind plate awl 3 are adaptive, and adopt ball or roller 16 to support, and can more easily realize relative rolling between the two.Adopt fixing means such as bolt to interconnect between piece and the piece with fixing.After installing or changing, will by on being arranged on key inside on the maintenance orifice plate 15 and being arranged on the grate plate support outwards keyway realize that more closely keyway cooperates, the screening feed system after guaranteeing to fix closely is fixed in the mill tube.Need maintenance, only need the maintenance orifice plate is opened, rotate grate plate, centrifugal sieve plate, blind plate cone, piecemeal takes out, changes just.
The invention provides a kind of thinking and implementation method of drawing mechanism of horizontal planetary ball mill; the specific implementation approach is a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (10)
1, a kind of drawing mechanism of horizontal planetary ball mill, it is characterized in that: it comprises preceding grate plate (1), sieve tool (2), blind plate awl (3), discharge nozzle (4) and collection powder cover (5), grate plate (1) is installed in the discharging end face in the planet mill tube (6) before described, after sieve tool (2) is installed in preceding grate plate (1), blind plate awl (3) covers on sieve tool (2) rear portion, discharge nozzle (4) one ends connect the centre bore of blind plate awl (3), and the other end connects collection powder cover (5), in discharge nozzle (4) feeding device is housed.
2, the drawing mechanism of horizontal planetary ball mill according to claim 1 is characterized in that: described sieve tool is one and the coaxial mounted truncated cone screen drum of planet mill tube (2), and this truncated cone screen drum covers on preceding grate plate (1) outside.
3, the drawing mechanism of horizontal planetary ball mill according to claim 2 is characterized in that: some lifting blades (7) are installed on described truncated cone inboard wall of riddle drum radially.
4, according to the drawing mechanism of claim 2 or 3 described horizontal planetary ball mills, it is characterized in that: grate plate before described (1) center drilling, and mouse cage shape cylinder (8) is installed between tapping and truncated cone screen drum (2), the punishment in advance gap of mouse cage shape cylinder (8) is less than the abrasive body diameter, and mouse cage shape cylinder (8) rear end face is installed back grate plate (9).
5, according to the drawing mechanism of claim 2 or 3 described horizontal planetary ball mills, it is characterized in that: the installed surface place that grate plate before described (1) goes up near the truncated cone screen drum is provided with coarse fodder tap (10).
6, according to the drawing mechanism of claim 1,2 or 3 described horizontal planetary ball mills, it is characterized in that: the internal helical blades that in described blind plate awl (3), is provided with.
7, according to the drawing mechanism of claim 1,2 or 3 described horizontal planetary ball mills, it is characterized in that: the feeding device in the described discharge nozzle (4) is inside spin conveying device (11).
8, according to the drawing mechanism of claim 1,2 or 3 described horizontal planetary ball mills, it is characterized in that: grate plate (1), sieve tool (2), blind plate awl (3) are the partitioned organization of standard before described, and every block structure adopts removable fasteners to be mutually permanently connected.
9, the drawing mechanism of horizontal planetary ball mill according to claim 8, it is characterized in that: be provided with manhole (12) at planet mill tube wall, the position of grate plate (1) and blind plate awl (3) is provided with two supports (13) before manhole (12) the edge correspondence, and the supporting construction that outer rim has and support (13) is adaptive of preceding grate plate (1) and blind plate awl (3) also is supported on respectively on two supports (13).
10, the drawing mechanism of horizontal planetary ball mill according to claim 9 is characterized in that: adopt the rotational support structure between two supports (11) and preceding grate plate (1) and the blind plate awl (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100329982A CN101569871A (en) | 2009-06-10 | 2009-06-10 | Discharging device of horizontal planetary ball mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100329982A CN101569871A (en) | 2009-06-10 | 2009-06-10 | Discharging device of horizontal planetary ball mill |
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| CN101569871A true CN101569871A (en) | 2009-11-04 |
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| CNA2009100329982A Pending CN101569871A (en) | 2009-06-10 | 2009-06-10 | Discharging device of horizontal planetary ball mill |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172548A (en) * | 2011-02-25 | 2011-09-07 | 南京工业大学 | Continuous horizontal planetary ball mill |
| CN102581746A (en) * | 2012-02-29 | 2012-07-18 | 无锡市飞云球业有限公司 | Ball feeding-discharging hole structure of ball mill |
| CN103071567A (en) * | 2013-01-22 | 2013-05-01 | 江苏普格机械有限公司 | Pulverizer |
| CN103084244A (en) * | 2013-01-22 | 2013-05-08 | 江苏普格机械有限公司 | Discharging mechanism of planetary ball mill |
| CN104741180A (en) * | 2014-07-22 | 2015-07-01 | 周鸿钧 | Compound type grate plate for ball mill |
| US9333507B2 (en) | 2013-01-15 | 2016-05-10 | Knight Industrial Equipment Inc. | Automatic ball charging system for a ball mill assembly |
| CN105944798A (en) * | 2016-07-19 | 2016-09-21 | 无锡新而立机械设备有限公司 | Negative-pressure ball grinding mill |
| CN106000553A (en) * | 2016-07-19 | 2016-10-12 | 无锡新而立机械设备有限公司 | Negative-pressure discharge ball mill set |
| CN107159578A (en) * | 2017-07-12 | 2017-09-15 | 盐城国众化工有限公司 | A kind of novel chemical chemical material screening machine |
| CN109012893A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | Rotating-table apparatus for planetary ball mill |
| CN109012896A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | A kind of discharging device and discharge control method for planetary ball mill |
| CN109012917A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | planetary ball mill |
| CN109012897A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | Rotating-table apparatus for planetary ball mill |
| CN109012914A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | A kind of planet mill tube for ball mill |
| CN110465382A (en) * | 2019-08-24 | 2019-11-19 | 武汉宇格电力设备有限公司 | From sorting type planetary ball mill |
| CN111450946A (en) * | 2020-04-08 | 2020-07-28 | 元江县永发水泥有限公司 | Tube mill for producing limestone micro powder |
| CN113117869A (en) * | 2019-12-30 | 2021-07-16 | 奥图泰(芬兰)公司 | Grate support element and open mill |
| CN115041272A (en) * | 2022-05-06 | 2022-09-13 | 苏州新区环保服务中心有限公司 | Slag treatment facility for environmental protection |
-
2009
- 2009-06-10 CN CNA2009100329982A patent/CN101569871A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172548A (en) * | 2011-02-25 | 2011-09-07 | 南京工业大学 | Continuous horizontal planetary ball mill |
| CN102581746A (en) * | 2012-02-29 | 2012-07-18 | 无锡市飞云球业有限公司 | Ball feeding-discharging hole structure of ball mill |
| US9333507B2 (en) | 2013-01-15 | 2016-05-10 | Knight Industrial Equipment Inc. | Automatic ball charging system for a ball mill assembly |
| CN103071567A (en) * | 2013-01-22 | 2013-05-01 | 江苏普格机械有限公司 | Pulverizer |
| CN103084244A (en) * | 2013-01-22 | 2013-05-08 | 江苏普格机械有限公司 | Discharging mechanism of planetary ball mill |
| CN104741180A (en) * | 2014-07-22 | 2015-07-01 | 周鸿钧 | Compound type grate plate for ball mill |
| CN105944798A (en) * | 2016-07-19 | 2016-09-21 | 无锡新而立机械设备有限公司 | Negative-pressure ball grinding mill |
| CN106000553A (en) * | 2016-07-19 | 2016-10-12 | 无锡新而立机械设备有限公司 | Negative-pressure discharge ball mill set |
| CN105944798B (en) * | 2016-07-19 | 2018-08-31 | 无锡新而立机械设备有限公司 | Negative pressure ball mill |
| CN107159578A (en) * | 2017-07-12 | 2017-09-15 | 盐城国众化工有限公司 | A kind of novel chemical chemical material screening machine |
| CN109012917A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | planetary ball mill |
| CN109012897B (en) * | 2018-10-12 | 2023-10-13 | 河南先导机械力化学研究院有限公司 | Turntable device for planetary ball mill |
| CN109012893A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | Rotating-table apparatus for planetary ball mill |
| CN109012897A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | Rotating-table apparatus for planetary ball mill |
| CN109012914A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | A kind of planet mill tube for ball mill |
| CN109012917B (en) * | 2018-10-12 | 2024-04-09 | 河南先导机械力化学研究院有限公司 | Planetary ball mill |
| CN109012893B (en) * | 2018-10-12 | 2023-10-13 | 河南先导机械力化学研究院有限公司 | Turntable device for planetary ball mill |
| CN109012896A (en) * | 2018-10-12 | 2018-12-18 | 河南先导机械力化学研究院有限公司 | A kind of discharging device and discharge control method for planetary ball mill |
| CN110465382B (en) * | 2019-08-24 | 2021-04-02 | 武汉宇格电力设备有限公司 | Self-sorting planetary ball mill |
| CN110465382A (en) * | 2019-08-24 | 2019-11-19 | 武汉宇格电力设备有限公司 | From sorting type planetary ball mill |
| CN113117869A (en) * | 2019-12-30 | 2021-07-16 | 奥图泰(芬兰)公司 | Grate support element and open mill |
| CN111450946A (en) * | 2020-04-08 | 2020-07-28 | 元江县永发水泥有限公司 | Tube mill for producing limestone micro powder |
| CN115041272A (en) * | 2022-05-06 | 2022-09-13 | 苏州新区环保服务中心有限公司 | Slag treatment facility for environmental protection |
| CN115041272B (en) * | 2022-05-06 | 2023-03-10 | 苏州新区环保服务中心有限公司 | Slag treatment facility for environmental protection |
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Application publication date: 20091104 |