CN205269787U - Raymond mill - Google Patents

Raymond mill Download PDF

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Publication number
CN205269787U
CN205269787U CN201520950528.5U CN201520950528U CN205269787U CN 205269787 U CN205269787 U CN 205269787U CN 201520950528 U CN201520950528 U CN 201520950528U CN 205269787 U CN205269787 U CN 205269787U
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CN
China
Prior art keywords
mill
machine shell
section
tubular machine
main shaft
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Expired - Fee Related
Application number
CN201520950528.5U
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Chinese (zh)
Inventor
刘勇
张华�
梁观华
张相良
陈世华
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Xinfeng Baogang Xinli Rare Earth Co Ltd
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Xinfeng Baogang Xinli Rare Earth Co Ltd
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Priority to CN201520950528.5U priority Critical patent/CN205269787U/en
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Publication of CN205269787U publication Critical patent/CN205269787U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a raymond mill, its includes crocus mechanism and air classifier, crocus mechanism includes tube -shape casing, fixed axle bed, rotary main shaft, fixed roll frame and a plurality of grinding roller assembly, be provided with on the inner tube wall of tube -shape casing and grind the ring, setting up of fixed axle bed on the bottom plate of tube -shape casing, rotary main shaft inserting of rotation relatively locates in the fixed axle bed, the fixed roll frame is fixed to be installed rotary main shaft is last to lie in the correspondence one end in the tube -shape casing, it is a plurality of the hinged to that the grinding roller assembly is the ring array distribution suspends in midair on the fixed roll frame, air classifier sets up directly over the axial of tube -shape casing, the coaxial fixed inner tube that is equipped with that hangs covers in the tube -shape casing, the inner tube envelope of hood cover in on the fixed roll frame, it has the passageway of subsiding to reserve between the inner tube wall of inner tube cover and tube -shape casing.

Description

Raymond mill
Technical field
The utility model relates to the crushing material apparatus field in rare earth element production process, in particular to a kind of raymond mill pulverized by rare earth mineral aggregate before two calcinations.
Background technology
Neodymium iron boron waste material is being carried out in efficient oxidation roasting process, need to use rotary kiln that neodymium iron boron waste material is carried out re-baking, and need to pulverize first one-step baking neodymium iron boron waste material before two calcinations, and the most representative equipment that mineral grind powder use is raymond mill. raymond mill is also known as Raymond mill, its structure is: hollow central shaft bracket and coaxial bull ring are housed on main machine base, what one rotation main shaft was coaxial is arranged in described central shaft bracket, described rotation main shaft stretches out in the upper end of central shaft bracket is fixing is equiped with certain roll stand (or claiming plum blossom frame), described determine in roll stand centered by the center axis of described rotation main shaft circular array be provided with some mill roller assemblies, described some mill roller assemblies all described can be determined in roll stand to being hinged on of upset relative to the described central shaft wire diameter rotating main shaft, the mill roller being sheathed on described mill roll shaft that described mill roller assembly comprises mill roll shaft and can relatively rotate, described mill roller assembly is around in described rotation main shaft revolution process, described mill roller assembly under centrifugal action relative to described rotate main shaft diameter outwards put make each mill roller contact described bull ring respectively, and roll on described bull ring, and then roll the material entered between described mill roller and bull ring, realize broken mill powder.
After the separation that existing Raymond mill determines the air classifier above roll stand through being positioned at due to the powder after fragmentation, fines is outwards carried, coarse fodder is then dished out by described air classifier, it is singly fall sedimentation by vertical direction after coarse fodder radial direction is dished out by air classifier, settling process can mix with boring the intersecting that enter air classifier that rise, and then the rapid subsidence affecting coarse fodder also affects the powder rapid increase after fragmentation; It is exactly the centrifugal force size restriction that the broken mill powder ability between mill roller and bull ring mainly is subject to grinding roller assembly in addition, and the size of its centrifugal force is subject to the weight of described mill roller assembly and rotates the speed of rotation restriction of main shaft, when after described rotation spindle operation to utmost dispatch, the centrifugal force of mill roller assembly cannot improve again, and then cause mill powder poor effect, production capacity receives restriction, raising mill powder ability that cannot be further.
Practical novel content
The purpose of this utility model is to provide a kind of raymond mill, its technical problem to be solved is: can cross with the material entering grading machine that rises in the coarse fodder settling process of grading machine separation, the rapid subsidence, the classification that affect thickness material are sent, and traditional Raymond mill cannot improve centrifugal force when rotating the speed of mainshaft and be constant, and then mill powder precision cannot be improved.
For solving the problems of the technologies described above, the utility model provides a kind of raymond mill, it comprises pulverizing mill structure and air classifier, described pulverizing mill structure comprises tubular machine shell, fixing axle bed, rotate main shaft, determine roll stand and some mill roller assemblies, the inner tube wall of described tubular machine shell is fixedly installed coaxial bull ring, on the co-axially fixed base plate being erected at described tubular machine shell of described fixing axle bed, described rotation main shaft can relatively rotation be inserted in described fixing axle bed, and the two ends of described rotation main shaft stretch out in described fixing axle bed respectively, described rotation main shaft one end correspondence is arranged in described tubular machine shell, the other end is piercing in the bottom of described tubular machine shell and is fixedly installed a torque transmission wheel, described torque transmission wheel can link with the driving source in the external world, described determine one end that roll stand is installed on described rotation main shaft to be arranged in corresponding described tubular machine shell, being hinged to be suspended in of some described mill roller assembly circular array distribution described is determined in roll stand, described air classifier is arranged at the axially surface of tubular machine shell, in described tubular machine shell coaxial fixing hang be provided with in one barrel cover, described interior barrel cover cover covers in described to be determined in roll stand, is reserved with sedimentation passage between the inner tube wall of described interior barrel cover and tubular machine shell.
It is preferable over: described air classifier comprises hood cylinder, described hood cylinder is provided with coaxial classification turbine, described hood cylinder is connected to the surface of described tubular machine shell, the diameter of described hood cylinder is greater than the diameter of described tubular machine shell, described hood cylinder inside contracts with described tubular machine shell docking site radial direction and forms back taper tubular structure, the blade swept surface of described classification turbine is the conical surface, and the cone tip part position of the conical surface upper port that stretches into described interior barrel cover is with described to determine roll stand corresponding.
It is preferable over: described interior barrel cover is made up of lower straight section and upper cone section, the cone tip part position that the blade of described classification turbine scans the conical surface of formation is stretched in the upper port of described interior barrel cover upper cone section, and the wall of the outer-rotor of described upper cone section and described hood cylinder form between the inner side-wall of back taper tubular structure the bell-mouth structure of air of described sedimentation passage upper end.
It is preferable over: described mill roller assembly comprises mill roll shaft and mill roller, described mill roll shaft one end is hinged on described determines in roll stand, what described mill roller can rotate relatively is set in the other end of described mill roll shaft, described mill roller can roll on the internal ring wall of described bull ring, also relatively turnable on described fixing axle bed it is arranged with a rotating cylinder, one end of described rotating cylinder is fixedly connected on described determines in roll stand, is provided with thrust mechanism between described rotating cylinder and described mill roll shaft.
It is preferable over: described thrust mechanism is expansion link, the two ends of described expansion link are hinged on described rotating cylinder respectively with on mill roll shaft, described expansion link comprises the axle sleeve that telescopic shaft and one end are closed, described telescopic shaft is plugged in described axle sleeve, the internal diameter of described axle sleeve mates mutually with the external diameter of described telescopic shaft, being provided with a compression spring in described axle sleeve, the two ends of described compression spring support respectively inserts on the end face of the one end in described axle sleeve with described telescopic shaft bottom described axle sleeve.
It is preferable over: described tubular machine shell comprises end section and upper section, described bull ring is fixedly installed on the inner tube wall of section of the described end, on described upper section inner tube wall, the top of corresponding described bull ring is also provided with opening for feed, described opening for feed is provided with a feed screw, the wall of the outer-rotor of section of the described end is arranged with an air duct, on the barrel of section of the described end, blast inlet offered by corresponding air duct, and described air duct is connected with a gas blower by pipeline, and described gas blower can to air blast in described air duct.
It is preferable over: on described rotating cylinder, one end radial convex of section of the corresponding described end is provided with perching knife frame, and described perching knife frame is equiped with perching knife, and described rotating cylinder rotates the bottom end plate that can drive end section described in described perching knife spatula relative to described fixing axle bed.
Compared with prior art, the beneficial effects of the utility model are:
One, material after grinding is sent in described hood cylinder by described interior barrel cover by the axial eddy current suction that the upstream sent in described air duct and the classification turbine of described air classifier produce, under the radial centrifugal force effect that described classification turbine produces, coarse fodder radial separation inadequate for degree of crushing is dished out, coarse fodder after dishing out enters slowly sedimentation in the sedimentation passage between described interior barrel cover and tubular machine shell, and then do not meet with the comminuting matter risen from described interior barrel cover, prevent the thick material of separate and subside and the material of rising from intersecting and affect the separation efficiency of material,
Two, described mill roller assembly is at the extra-push model revolving round the sun and being also subject to described thrust mechanism in the process rolling bull ring except centrifugal force, adds mill roller to the grinding pressure of material, enhances crushing effect and mill powder ability.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the local structure enlarged diagram of A in Fig. 1.
Embodiment
Below with reference to accompanying drawing 1-2 and better embodiment, a kind of raymond mill that the utility model proposes specifically is illustrated.
The utility model provides a kind of raymond mill, it comprises pulverizing mill structure 100 and air classifier 200, described pulverizing mill structure 100 comprises tubular machine shell 1, fixing axle bed 2, rotate main shaft 3, determine roll stand 4 and some mill roller assemblies 5, the inner tube wall of described tubular machine shell 1 is fixedly installed coaxial bull ring 6, on the co-axially fixed base plate being erected at described tubular machine shell 1 of described fixing axle bed 2, described rotation main shaft 3 can relatively rotation be inserted in described fixing axle bed 2, and the two ends of described rotation main shaft 3 stretch out in described fixing axle bed 2 respectively, described rotation main shaft 3 one end correspondence is arranged in described tubular machine shell 1, the other end is piercing in the bottom of described tubular machine shell 1 and is fixedly installed a torque transmission wheel 31, described torque transmission wheel 31 can link with the driving source in the external world, described determine one end that roll stand 4 is installed on described rotation main shaft 3 to be arranged in corresponding described tubular machine shell 1, being hinged to be suspended in of some described mill roller assembly 5 circular array distribution described is determined in roll stand 4, described air classifier 200 is arranged at the axially surface of tubular machine shell 1, in described tubular machine shell 1 coaxial fixing hang be provided with in one barrel cover 7, described interior barrel cover 7 cover covers in described to be determined in roll stand 4, is reserved with sedimentation passage 71 between described interior barrel cover 7 and the inner tube wall of tubular machine shell 1.
The utility model is in the specific implementation, the material ground is by rising in described air classifier 200 in described interior barrel cover 7, thick material inadequate for degree of crushing is dished out by described air classifier 200 by centrifugal force radial separation, thick material enters the sedimentation of described sedimentation passage 71 after being dished out, and then can not meet with the broken material risen, and then improve thickness separating effect, prevent thick material from again being brought into described air classifier by upstream, also prevent the fines from being continued to grind under coarse fodder band, it is to increase crushing efficiency.
Described air classifier 200 comprises hood cylinder 201, described hood cylinder 201 is provided with coaxial classification turbine 202, described hood cylinder 201 is connected to the surface of described tubular machine shell 1, the diameter of described hood cylinder 201 is greater than the diameter of described tubular machine shell 1, described hood cylinder 201 inside contracts with described tubular machine shell 1 docking site radial direction and forms back taper tubular structure, the blade swept surface of described classification turbine 202 is the conical surface, and the cone tip part position of the conical surface upper port that stretches into described interior barrel cover 7 is with described to determine roll stand 4 corresponding, the blade swept surface of described classification turbine 202 is the conical surface, and then fines can be sucked by the axial eddy current suction in the cone pinnacle portion of classification turbine from described interior barrel cover 7, dished out coarse fodder by classification turbine 202 radial direction again, and the material dished out is thrown in the outside of described interior barrel cover 7, and then ensure that the material of material and the rising dished out is from sedimentation and the rising respectively of two passages.
Described interior barrel cover 7 is made up of lower straight section 72 and upper cone section 73, the cone tip part position that the blade of described classification turbine 202 scans the conical surface of formation is stretched in the upper port of described interior barrel cover 7 upper cone section 73, forming the bell-mouth structure of air of described sedimentation passage 71 upper end on the wall of the outer-rotor of described upper cone section 73 and described hood cylinder 201 between the inner side-wall of back taper tubular structure, bell-mouth structure of air is conducive to the coarse fodder dished out from described classification turbine 202 to enter in described sedimentation passage 71.
Described mill roller assembly 5 comprises mill roll shaft 51 and mill roller 52, described mill roll shaft 51 one end is hinged on described determines in roll stand 4, what described mill roller 52 can rotate relatively is set in the other end of described mill roll shaft 51, described mill roller 52 can roll on the internal ring wall of described bull ring 6, also relatively turnable on described fixing axle bed 2 it is arranged with a rotating cylinder 8, one end of described rotating cylinder 8 is fixedly connected on described determines in roll stand 4, it is provided with thrust mechanism 9 between described rotating cylinder 8 and described mill roll shaft 51, described thrust mechanism 9 is expansion link, as shown in Figure 2, the two ends of described expansion link are hinged on described rotating cylinder 8 respectively with on mill roll shaft 51, described expansion link comprises the axle sleeve 92 that telescopic shaft 91 and one end are closed, described telescopic shaft 91 is plugged in described axle sleeve 92, the internal diameter of described axle sleeve 92 mates mutually with the external diameter of described telescopic shaft 91, described axle sleeve 92 is provided with a compression spring 93, the two ends of described compression spring 93 support respectively inserts on the end face of the one end in described axle sleeve 92 with described telescopic shaft 91 bottom described axle sleeve 92, and then described expansion link can be made automatically to extend, and then by the ejection of described mill roll shaft 51 to deviateing described rotation main shaft 3, for described mill roller 52 provides one thrust, strengthen the grinding pressure between mill roller 52 and bull ring 6, described rotation main shaft 3 can rotate relative to described fixing axle bed 2, and then drive some mill roller assemblies 5 to revolve round the sun, it is hinged and it is suspended in the described some mill roller assemblies 5 determining in roll stand 4 and outwards swings under centrifugal action and then make mill roller 52 rolling compaction neodymium iron Boron slag material on the inner side-wall of described bull ring 6, described thrust mechanism 9 is utilized to increase by one thrust on the rotary centrifugal force basis of described mill roller assembly 5 in the process, it is thus possible to increase grinding pressure, improve mill powder ability, improve production capacity.
Described tubular machine shell 1 comprises end section 11 and upper section 12, described bull ring 6 is fixedly installed on the inner tube wall of section of the described end 11, described upper section 12 inner tube wall on the top of corresponding described bull ring 6 be also provided with opening for feed 13, described opening for feed 13 is provided with a feed screw 14, the wall of the outer-rotor of section of the described end 11 is arranged with an air duct 15, on the barrel of section of the described end 11, blast inlet 16 offered by corresponding air duct 15, described air duct 15 is connected with a gas blower 17 by pipeline, described gas blower 17 can to air blast in described air duct 15, and then can the pulverulent material after pulverizing be blown in described air classifier 200, the effective grading effect improving material, described feed screw 14 is utilized to prevent the powder ground from attacking in retaliation away from described opening for feed 13 under the effect of air-flow.
On described rotating cylinder 8, one end radial convex of section of the corresponding described end 11 is provided with perching knife frame 81, described perching knife frame 81 is equiped with perching knife 82, described rotating cylinder 8 rotates the base plate that can drive end section 11 described in described perching knife 82 spatula relative to described fixing axle bed 2, and then is sent into by material between described mill roller 52 and bull ring 6.
Described on comprehensive, the technical solution of the utility model can fully effectively complete the novel object of above-mentioned practicality, and structural principle of the present utility model and the principle of work and power all verified in an embodiment fully, and effect and the object of expection can be reached, and embodiment of the present utility model can also convert according to these principles, therefore, the utility model comprises all replacement contents that all are mentioned in scope in claim. Any equivalence change done in the utility model claim, all belongs within the patent scope of this case application.

Claims (7)

1. a raymond mill, it comprises pulverizing mill structure and air classifier, described pulverizing mill structure comprises tubular machine shell, fixing axle bed, rotate main shaft, determine roll stand and some mill roller assemblies, the inner tube wall of described tubular machine shell is fixedly installed coaxial bull ring, on the co-axially fixed base plate being erected at described tubular machine shell of described fixing axle bed, described rotation main shaft can relatively rotation be inserted in described fixing axle bed, and the two ends of described rotation main shaft stretch out in described fixing axle bed respectively, described rotation main shaft one end correspondence is arranged in described tubular machine shell, the other end is piercing in the bottom of described tubular machine shell and is fixedly installed a torque transmission wheel, described torque transmission wheel can link with the driving source in the external world, described determine one end that roll stand is installed on described rotation main shaft to be arranged in corresponding described tubular machine shell, being hinged to be suspended in of some described mill roller assembly circular array distribution described is determined in roll stand, described air classifier is arranged at the axially surface of tubular machine shell, in described tubular machine shell coaxial fixing hang be provided with in one barrel cover, described interior barrel cover cover covers in described to be determined in roll stand, is reserved with sedimentation passage between the inner tube wall of described interior barrel cover and tubular machine shell.
2. raymond mill as claimed in claim 1, it is characterized in that: described air classifier comprises hood cylinder, described hood cylinder is provided with coaxial classification turbine, described hood cylinder is connected to the surface of described tubular machine shell, the diameter of described hood cylinder is greater than the diameter of described tubular machine shell, described hood cylinder inside contracts with described tubular machine shell docking site radial direction and forms back taper tubular structure, the blade swept surface of described classification turbine is the conical surface, and the cone tip part position of the conical surface upper port that stretches into described interior barrel cover is with described to determine roll stand corresponding.
3. raymond mill as claimed in claim 2, it is characterized in that: described interior barrel cover is made up of lower straight section and upper cone section, the cone tip part position that the blade of described classification turbine scans the conical surface of formation is stretched in the upper port of described interior barrel cover upper cone section, and the wall of the outer-rotor of described upper cone section and described hood cylinder form between the inner side-wall of back taper tubular structure the bell-mouth structure of air of described sedimentation passage upper end.
4. raymond mill as claimed in claim 3, it is characterized in that: described mill roller assembly comprises mill roll shaft and mill roller, described mill roll shaft one end is hinged on described determines in roll stand, what described mill roller can rotate relatively is set in the other end of described mill roll shaft, described mill roller can roll on the internal ring wall of described bull ring, also relatively turnable on described fixing axle bed it is arranged with a rotating cylinder, one end of described rotating cylinder is fixedly connected on described determines in roll stand, is provided with thrust mechanism between described rotating cylinder and described mill roll shaft.
5. raymond mill as claimed in claim 4, it is characterized in that: described thrust mechanism is expansion link, the two ends of described expansion link are hinged on described rotating cylinder respectively with on mill roll shaft, described expansion link comprises the axle sleeve that telescopic shaft and one end are closed, described telescopic shaft is plugged in described axle sleeve, the internal diameter of described axle sleeve mates mutually with the external diameter of described telescopic shaft, being provided with a compression spring in described axle sleeve, the two ends of described compression spring support respectively inserts on the end face of the one end in described axle sleeve with described telescopic shaft bottom described axle sleeve.
6. raymond mill as claimed in claim 5, it is characterized in that: described tubular machine shell comprises end section and upper section, described bull ring is fixedly installed on the inner tube wall of section of the described end, on described upper section inner tube wall, the top of corresponding described bull ring is also provided with opening for feed, described opening for feed is provided with a feed screw, the wall of the outer-rotor of section of the described end is arranged with an air duct, on the barrel of section of the described end, blast inlet offered by corresponding air duct, being connected with a gas blower by pipeline on described air duct, described gas blower can to air blast in described air duct.
7. raymond mill as claimed in claim 6, it is characterized in that: on described rotating cylinder, one end radial convex of section of the corresponding described end is provided with perching knife frame, being equiped with perching knife on described perching knife frame, described rotating cylinder rotates the bottom end plate that can drive end section described in described perching knife spatula relative to described fixing axle bed.
CN201520950528.5U 2015-11-25 2015-11-25 Raymond mill Expired - Fee Related CN205269787U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105964375A (en) * 2016-07-18 2016-09-28 何保罗 Flaky graphite regrinding mill
CN108672022A (en) * 2018-06-29 2018-10-19 刘寒 A kind of Raymond mill and its working method suitable for calcium hydroxide milling
CN109395837A (en) * 2018-09-04 2019-03-01 北京慧峰仁和科技股份有限公司 A kind of medium-speed pulverizer mill fluidizer and its application method
CN110449224A (en) * 2019-08-09 2019-11-15 江苏吉能达环境能源科技有限公司 A kind of micropowders vertical rolls mill
CN110740815A (en) * 2017-09-19 2020-01-31 三菱日立电力系统株式会社 Biomass grinding machine
CN111250222A (en) * 2020-02-16 2020-06-09 邓禄山 Raymond mill for ore crushing
CN112473886A (en) * 2020-11-05 2021-03-12 徐向春 Raymond powder making machine for processing refractory materials
CN115888896A (en) * 2022-10-31 2023-04-04 河北博翔特种石墨有限公司 Intelligent production facility of artificial graphite
CN116197012A (en) * 2023-05-05 2023-06-02 曲阳金隅水泥有限公司 Multi-stage cement powder separator of distributed type

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105964375A (en) * 2016-07-18 2016-09-28 何保罗 Flaky graphite regrinding mill
CN105964375B (en) * 2016-07-18 2018-04-13 何保罗 Crystalline flake graphite grinding machine again
CN110740815B (en) * 2017-09-19 2021-08-03 三菱动力株式会社 Biomass grinding machine
CN110740815A (en) * 2017-09-19 2020-01-31 三菱日立电力系统株式会社 Biomass grinding machine
TWI687261B (en) * 2017-09-19 2020-03-11 日商三菱日立電力系統股份有限公司 Biomass crusher
CN108672022A (en) * 2018-06-29 2018-10-19 刘寒 A kind of Raymond mill and its working method suitable for calcium hydroxide milling
CN109395837A (en) * 2018-09-04 2019-03-01 北京慧峰仁和科技股份有限公司 A kind of medium-speed pulverizer mill fluidizer and its application method
CN110449224A (en) * 2019-08-09 2019-11-15 江苏吉能达环境能源科技有限公司 A kind of micropowders vertical rolls mill
CN110449224B (en) * 2019-08-09 2021-09-21 江苏吉能达环境能源科技有限公司 Vertical roller mill for superfine powder
CN111250222A (en) * 2020-02-16 2020-06-09 邓禄山 Raymond mill for ore crushing
CN111250222B (en) * 2020-02-16 2021-08-24 曲阜市铸造材料厂 Raymond mill for ore crushing
CN112473886A (en) * 2020-11-05 2021-03-12 徐向春 Raymond powder making machine for processing refractory materials
CN115888896A (en) * 2022-10-31 2023-04-04 河北博翔特种石墨有限公司 Intelligent production facility of artificial graphite
CN115888896B (en) * 2022-10-31 2024-02-20 河北博翔特种石墨有限公司 Intelligent production equipment for artificial graphite
CN116197012A (en) * 2023-05-05 2023-06-02 曲阳金隅水泥有限公司 Multi-stage cement powder separator of distributed type

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