CN108262151A - The drum washer that a kind of permanent magnet synchronous motor directly drives - Google Patents
The drum washer that a kind of permanent magnet synchronous motor directly drives Download PDFInfo
- Publication number
- CN108262151A CN108262151A CN201810094879.9A CN201810094879A CN108262151A CN 108262151 A CN108262151 A CN 108262151A CN 201810094879 A CN201810094879 A CN 201810094879A CN 108262151 A CN108262151 A CN 108262151A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- synchronous motor
- magnet synchronous
- stator
- drum washer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/56—Drum classifiers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Abstract
The present invention discloses the drum washer that a kind of permanent magnet synchronous motor directly drives, including cylinder, feeding mouth, discharge port, rotating mechanism, barrel support seat is equipped with below the cylinder, the feeding mouth, discharge port are respectively equipped with swivel bearing, cylinder is driven to rotate about the axis thereof by the rotating mechanism, the rotating mechanism is permanent magnet synchronous motor；The permanent magnet synchronous motor includes rotor assembly and stator module, and the rotor assembly includes mover and the permanent magnet being evenly arranged in around the axis on mover；The stator module is oppositely arranged with the rotor assembly, and the stator module includes stator core and the stator winding being wrapped on the stator core；The stator core is integrated the circular column or annular disk of machine-shaping.The present invention directly drives cylinder by permanent magnet synchronous motor and rotates, and so as to reach transmission efficiency, low noise, easy care maintenance, production efficiency is high.
Description
Technical field
The invention belongs to the cylinder washups that ore washing technology field more particularly to a kind of permanent magnet synchronous motor are directly driven
Machine.
Background technology
Drum washer is widely used in the washing of various refractory ores.Existing drum washer is mainly filled by cylinder
It puts, the compositions such as gear assembly, support member, cylinder is installed on the supporting member, cylinder is driven to turn by gear assembly
It is dynamic, complete the cleaning of ore and screening work；Gear assembly is mainly by motor, retarder, shaft coupling, pinion gear, small
The components such as gear shaft, gear wheel, gear lubrication system, rolling ring, idler wheel, support roller form, due to gear pair transmission device component is more,
Vulnerable part is more, and installs complicated, causes to manufacture that of high cost, use and maintenance is of high cost, maintenance downtime is long, repair and maintenance is stranded
The problems such as difficult；And it since gear wheel is next to cylinder connection, if ore pulp leakage is just easy to the abrasion of aggravation gear wheel, reduces
Gear wheel usage time.
For this purpose, patent CN201120484498.5 discloses a kind of frictional drive drum washer, filled using frictional drive
It puts and drives barrel body rotation by rubbing, reduce the component of transmission device, reduce and lost caused by transmission device component damage.
Though the drum washer structure to a certain degree simplify, its described friction gearing further include frequency-conversion and speed-regulation motor,
Retarder, shaft coupling and friction wheel apparatus, transmission device structure is more, installs complexity, and friction pair is increased in work,
Transmission efficiency is low, noise is big, and friction pulley is vulnerable to abrasion, causes cylinder eccentric so that maintenance cost is high, maintenance downtime
It is long, reduce washup production efficiency.
Invention content
In order to solve the problems in the prior art, the purpose of the present invention is to provide the cylinder that a kind of permanent magnet synchronous motor directly drives and wash
Ore deposit machine, the drum washer directly drives cylinder by permanent magnet synchronous motor and rotates, so as to reach transmission efficiency, noise
Low, easy care maintenance, production efficiency are high.
To achieve the above object, the technical solution adopted by the present invention is：
The drum washer that a kind of permanent magnet synchronous motor directly drives, it is described including cylinder, feeding mouth, discharge port, rotating mechanism
Barrel support seat is equipped with below cylinder, the feeding mouth, discharge port are respectively equipped with swivel bearing, are driven by the rotating mechanism
Cylinder rotates about the axis thereof, and the rotating mechanism is permanent magnet synchronous motor；The permanent magnet synchronous motor includes rotor assembly and determines
Sub-component, the rotor assembly include mover and the permanent magnet being evenly arranged in around the axis on mover；The stator pack
Part is oppositely arranged with the rotor assembly, and the stator module, which includes stator core and is wrapped on the stator core, to be determined
Sub- winding, the stator core are integrated the circular column or annular disk of machine-shaping.After permanent magnet synchronous motor is powered, it can generate
The magnetic force rotated around axis direction for rotor assembly to be driven to rotate, so as to which the cylinder of drum washer be driven to rotate, is washed
Miner makees.Stator core is integrated machine-shaping, the installation for motor of being more convenient for, and further reduces the assembly difficulty of equipment.
Further, rotor assembly is arranged on the cylinder lateral wall, feeding mouth or discharge port.
Further, the stator module has further included stator base；The stator core is fixedly installed in the stator
On pedestal；The mover column or annular dish structure in a ring；The permanent magnet is distributed in lateral wall and/or the end of the mover
Face；The stator base is set in outside the rotor assembly；The stator core be placed in the stator base madial wall and/or
End face, setting corresponding with the permanent magnet.It is radially and/or axially right in cylinder by the cooperation of stator winding and permanent magnet
The cylinder provides turning moment, driving cylinder rotation, so as to which drum washer be driven to work.
Further, the discharge port is equipped with washup jet pipe, connects water-supply-pipe on the washup jet pipe, the water-supply-pipe is worn
It crosses the stator base to connect with water storehouse, for cooling down permanent magnet synchronous motor.Ore deposit must be carried out in discharge port clear
It washes, in use, water is to be injected directly into discharge port to existing equipment, and in the present invention, the water in water-supply-pipe is transported to
Before discharge port, the temperature control of motor in claimed range is used further to washup first with the water of washup, is rationally provided using water
Source, energy conservation and environmental protection realize that resource maximally utilizes.
Further, the permanent magnet synchronous motor is equipped with speed measuring device, feeds back and controls by the speed measuring device
The rotating speed of drum washer so that drum washer can set different drum speeds, washup effect is more according to the difference of ore
It is good.
Further, the permanent magnet synchronous motor is equipped with cooling water pipe.The stator module is that electric power is needed to generate rotation
The magnetic field turned, the rotation of the cylinder is driven while rotating excitation field is tested, a large amount of heat can be supervened, influence equipment
Normal operation, the cooling water pipe can quickly take away heat, ensure the stable of equipment.
Further, multiple through-holes are evenly equipped in the stator base, the through-hole is equipped with waterproof ventilated membrane.Work as mover
During rotation, using through-hole rough air, accelerate gas flowing, make motor radiating, it is ensured that equipment normal operation.
Further, the cylinder inboard wall is equipped with liner plate, can prevent cylinder inboard wall from being scratched by ore, effectively extends equipment
Service life reduces maintenance cost.
Further, pass through key connection between the mover and cylinder lateral wall/feeding mouth/discharge port.The cylinder
Body needs to undertake very huge driving torque in operation, on the one hand can enhance the cylinder by being keyed
Torque-transfer capability ensures the reliability that torque transmits, on the other hand can facilitate the location and installation of the mover, and keyway adds
Work is convenient, and transmission torque is reliable and stable, and the relevant technologies and specification are ripe.
Compared with prior art, the beneficial effects of the invention are as follows：1st, cylinder washup is directly driven using permanent magnet synchronous motor
Machine, it is possible to reduce existing equipment gear, reduction box, friction pulley etc. drive intermediate link, simplify type of drive and structure, improve and drive
Efficiency of movement realizes the quick response of drum washer；2nd, drum washer of the present invention can select the driving side of motor as needed
Formula realizes frequency control or SERVO CONTROL, to meet the flexible selection to type of drive；3rd, drum washer of the present invention passes through electricity
Magnetic drive, contactless transmission is reliable, and noise is small, and simple in structure, manufacturing cost and use cost is low, and motor is easily assembled, energy
The loss in source greatly reduces；4th, drum washer of the present invention has fast response time using permanent magnet synchronous motor, and control accuracy is high
The advantages of, while powerful energy output can be provided, it has a safety feature；5th, drum washer of the present invention is easy for installation, is convenient for
Repair, maintenance downtime is short, and washup production efficiency is high；6th, the present invention make full use of water resource during washup to motor into
Row cooling, rational utilization of water resources, energy conservation and environmental protection realize that resource maximally utilizes.
Description of the drawings
Fig. 1 is the structure diagram of drum washer that a kind of permanent magnet synchronous motor of the present invention directly drives；
Fig. 2 is the structure diagram of drum washer that another permanent magnet synchronous motor of the present invention directly drives；
Fig. 3 is the structure diagram of drum washer that another permanent magnet synchronous motor of the present invention directly drives；
Fig. 4 is the structure diagram of drum washer that another permanent magnet synchronous motor of the present invention directly drives；
In figure：1. feeding mouth；2. locking nut；3. permanent magnet synchronous motor；4. rotor assembly；4-1. mover；4-2. permanent magnetism
Body；5. stator module；6. stator base；7. barrel support seat；8. cylinder；9. swivel bearing；10. discharge port；11. washup is sprayed
Pipe；12. water-supply-pipe.
Specific embodiment
Below in conjunction with the attached drawing in the present invention, technical scheme of the present invention is clearly and completely described, it is clear that
Described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, all other embodiment that those of ordinary skill in the art are obtained under the conditions of creative work is not made belong to
The scope of protection of the invention.
The drum washer that a kind of permanent magnet synchronous motor directly drives, including cylinder 8, feeding mouth 1, discharge port 10, rotating mechanism,
8 lower section of cylinder is equipped with barrel support seat 7, and the feeding mouth 1, discharge port 10 are respectively equipped with swivel bearing 9, pass through the rotation
Rotation mechanism driving cylinder 8 rotates about the axis thereof, and the rotating mechanism is permanent magnet synchronous motor 3；The permanent magnet synchronous motor 3 includes
Rotor assembly 4 and stator module 5, the rotor assembly 4 include mover 4-1 and are evenly arranged in mover 4-1 around the axis
On permanent magnet 4-2；The stator module 5 is oppositely arranged with the rotor assembly 4, and the stator module 5 includes stator iron
Core and the stator winding being wrapped on the stator core, the stator core are integrated the circular column or annular of machine-shaping
Disk.Locking nut 2 is equipped in 4 end of rotor assembly.
In a specific embodiment, the rotor assembly 4 can be arranged on 8 lateral wall of cylinder, feeding mouth 1 or discharging
10 any positions of mouth.
To improve the control accuracy of drum washer, in the present embodiment, survey can be set on the permanent magnet synchronous motor 3
Speed variator, the rotating speed for feeding back by the speed measuring device and controlling drum washer so that drum washer can be according to ore
Difference, different 8 rotating speeds of cylinder is set, and washup is better.
Mode is preferably carried out as the present invention, the permanent magnet synchronous motor 3 is equipped with cooling water pipe.Utilize the cooling
Water pipe quickly takes away the heat generated in motor operation course, ensures the stable of equipment.
Mode is preferably carried out as the present invention, multiple through-holes are evenly equipped in the stator base 6, the through-hole is equipped with
Waterproof ventilated membrane.When mover 4-1 rotates, using through-hole rough air, accelerate gas flowing, make motor radiating, it is ensured that equipment
Normal operation, waterproof ventilated membrane can effectively prevent moisture to enter motor, prevent motor moisture damage.
Mode is preferably carried out as the present invention, 8 inner wall of cylinder is equipped with liner plate, can prevent 8 inner wall of cylinder by ore
It scratches, effectively extends the service life of equipment, reduce maintenance cost.
Mode, the mover 4-1 and 8 lateral wall of cylinder, feeding mouth 1 or discharge port are preferably carried out as the present invention
Pass through key connection between 10.Mover 4-1 is installed using keyway, easy to process, transmission torque is reliable and stable.
It is specifically described the assembly method of stator module 5 and rotor assembly 4 below, following several assembling sides can be used in when use
The permanent magnet synchronous motor 3 of formula directly drives drum washer.
Embodiment one
As shown in Figure 1, the rotor assembly 4 is arranged on 1 outer wall of feeding mouth.
The stator module 5 has further included stator base 6, and the stator base 6 is mounted on barrel support seat 7；It is described
Stator core is fixedly installed in the stator base 6；Mover 4-1 rod structures in a ring；The permanent magnet 4-2 is distributed in
The lateral wall of the mover 4-1；The stator base 6 is set in outside the rotor assembly 4；The stator core is placed in described fixed
The madial wall of sub-base 6, setting corresponding with the permanent magnet 4-2.After permanent magnet synchronous motor 3 is powered, pass through stator winding
And the cooperation of permanent magnet 4-2, turning moment radially is provided to the cylinder 8 in cylinder 8, for rotor assembly 4 to be driven to rotate,
So as to which the cylinder 8 for driving drum washer rotates, drum washer work is driven.
Embodiment two
As shown in Fig. 2, the rotor assembly 4 is arranged on 10 outer wall of discharge port.
The stator module 5 has further included stator base 6, and the stator base 6 is mounted on barrel support seat 7；It is described
Stator core is fixedly installed in the stator base 6；Mover 4-1 dish structures in a ring；The permanent magnet 4-2 is distributed in
The end face of the mover 4-1；The stator base 6 is set in outside the rotor assembly 4；The stator core is placed in the stator
The end face of pedestal 6, setting corresponding with the permanent magnet 4-2.By the cooperation of stator winding and permanent magnet 4-2, in 8 axis of cylinder
To turning moment is provided the cylinder 8, driving cylinder 8 rotates, so as to which drum washer be driven to work.
Embodiment three
As shown in figure 3, the rotor assembly 4 is arranged in the middle part of 8 lateral wall of cylinder.
The stator module 5 has further included stator base 6, and the stator base 6 is mounted in rack；The stator core
It is fixedly installed in the stator base 6；Mover 4-1 rod structures in a ring；The permanent magnet 4-2 is distributed in the mover
The lateral wall of 4-1 and top surface；The stator base 6 is set in outside the rotor assembly 4；The stator core is placed in the stator
The madial wall of pedestal 6 and bottom surface, setting corresponding with the permanent magnet 4-2.By the cooperation of stator winding and permanent magnet 4-2,
Radial and axial to the cylinder 8 offer turning moment in cylinder 8, driving cylinder 8 rotates, so as to drive drum washer work
Make.
Example IV
Part unlike the embodiments above is, the discharge port 10 is equipped with washup jet pipe 11, on the washup jet pipe 11
Connect water-supply-pipe 12, the water-supply-pipe 12 connect across the stator base 6 with water storehouse, for permanent magnet synchronous motor 3 into
Row cooling, specifically, the water-supply-pipe 12 is passed through in a manner of spiral winding in the stator base 6, improves stator base in this way
The contact area of seat and water improves cooling efficiency, as shown in figure 4, Fig. 4 shows only structure of the motor at feeding mouth 1,
It is not intended as the restriction of water-supply-pipe mounting means of the present invention.In existing equipment, washup is only served only for for the water of washup, motor is then
It needs to reinstall water pipe, to be cooled down, largely to consume water resource, causes the waste of water resource, and the present embodiment, by washup
Water first for cooling down motor, afterwards for washup so that water resource is using maximizing, energy conservation and environmental protection.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. the drum washer that a kind of permanent magnet synchronous motor directly drives, which is characterized in that including cylinder, feeding mouth, discharge port, rotation
Mechanism, the cylinder lower section are equipped with barrel support seat, and the feeding mouth, discharge port are respectively equipped with swivel bearing, pass through the rotation
Rotation mechanism driving cylinder rotates about the axis thereof, and the rotating mechanism is permanent magnet synchronous motor；The permanent magnet synchronous motor includes turning
Sub-component and stator module, the rotor assembly include mover and the permanent magnet being evenly arranged in around the axis on mover；
The stator module is oppositely arranged with the rotor assembly, and the stator module includes stator core and is wrapped in the stator
Stator winding on iron core；The stator core is integrated the circular column or annular disk of machine-shaping.
2. the drum washer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that rotor assembly
It is arranged on the cylinder lateral wall, feeding mouth or discharge port.
3. the drum washer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that the stator
Component has further included stator base；The stator core is fixedly installed in the stator base；The permanent magnet is distributed in institute
State lateral wall and/or the end face of mover；The stator base is set in outside the rotor assembly；The stator core is placed in described
The madial wall of stator base and/or end face, setting corresponding with the permanent magnet.
4. the drum washer that a kind of permanent magnet synchronous motor according to claim 3 directly drives, which is characterized in that the discharging
Mouth is equipped with washup jet pipe, and water-supply-pipe is connected on the washup jet pipe, and the water-supply-pipe passes through the stator base to connect with water storehouse
It connects, for being cooled down to permanent magnet synchronous motor.
5. the drum washer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that the permanent magnetism
Synchronous motor is equipped with speed measuring device, the rotating speed for feeding back by the speed measuring device and controlling drum washer.
6. the drum washer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that the permanent magnetism
Synchronous motor is equipped with cooling water pipe.
7. the drum washer that a kind of permanent magnet synchronous motor according to claim 3 directly drives, which is characterized in that the stator
Multiple through-holes are evenly equipped on pedestal, the through-hole is equipped with waterproof ventilated membrane.
8. the drum washer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that the cylinder
Inner wall is equipped with liner plate.
9. the drum washer that a kind of permanent magnet synchronous motor according to claim 1 directly drives, which is characterized in that the mover
Pass through key connection between the cylinder lateral wall/feeding mouth/discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094879.9A CN108262151A (en) | 2018-01-31 | 2018-01-31 | The drum washer that a kind of permanent magnet synchronous motor directly drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094879.9A CN108262151A (en) | 2018-01-31 | 2018-01-31 | The drum washer that a kind of permanent magnet synchronous motor directly drives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108262151A true CN108262151A (en) | 2018-07-10 |
Family
ID=62777229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810094879.9A Pending CN108262151A (en) | 2018-01-31 | 2018-01-31 | The drum washer that a kind of permanent magnet synchronous motor directly drives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108262151A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002007290A2 (en) * | 2000-07-14 | 2002-01-24 | Minebea Co., Ltd. | Rotor assembly for an electric motor and electric motor with internal rotor |
| CN201482744U (en) * | 2009-09-09 | 2010-05-26 | 张家界恒亮新材料科技有限公司 | Novel rotary drum type ore washing plant |
| CN103551240A (en) * | 2013-10-28 | 2014-02-05 | 湖南华楚机械有限公司 | Chute type concentrator |
| CN204583452U (en) * | 2015-07-08 | 2015-08-26 | 李俊 | A kind of mineral aggregate automatic classification type drum washer |
| CN106216033A (en) * | 2016-08-08 | 2016-12-14 | 成都茂源科技有限公司 | A kind of permagnetic synchronous motor direct-drive type energy-saving ball mill |
| CN208004136U (en) * | 2018-01-31 | 2018-10-26 | 湖北环一电磁装备工程技术有限公司 | A kind of drum washer that permanent magnet synchronous motor directly drives |
-
2018
- 2018-01-31 CN CN201810094879.9A patent/CN108262151A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002007290A2 (en) * | 2000-07-14 | 2002-01-24 | Minebea Co., Ltd. | Rotor assembly for an electric motor and electric motor with internal rotor |
| CN201482744U (en) * | 2009-09-09 | 2010-05-26 | 张家界恒亮新材料科技有限公司 | Novel rotary drum type ore washing plant |
| CN103551240A (en) * | 2013-10-28 | 2014-02-05 | 湖南华楚机械有限公司 | Chute type concentrator |
| CN204583452U (en) * | 2015-07-08 | 2015-08-26 | 李俊 | A kind of mineral aggregate automatic classification type drum washer |
| CN106216033A (en) * | 2016-08-08 | 2016-12-14 | 成都茂源科技有限公司 | A kind of permagnetic synchronous motor direct-drive type energy-saving ball mill |
| CN208004136U (en) * | 2018-01-31 | 2018-10-26 | 湖北环一电磁装备工程技术有限公司 | A kind of drum washer that permanent magnet synchronous motor directly drives |
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