CN109999987A - A kind of coal mining screening plant convenient for uniform stirring - Google Patents
A kind of coal mining screening plant convenient for uniform stirring Download PDFInfo
- Publication number
- CN109999987A CN109999987A CN201910416705.4A CN201910416705A CN109999987A CN 109999987 A CN109999987 A CN 109999987A CN 201910416705 A CN201910416705 A CN 201910416705A CN 109999987 A CN109999987 A CN 109999987A
- Authority
- CN
- China
- Prior art keywords
- grinding barrel
- sieving plate
- steel cable
- pedestal
- main casing
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of coal mining screening plants convenient for uniform stirring, including main casing, servo motor, positive and negative motor and material collecting tank, sliding slot is offered in the main casing, and grinding barrel is provided in main casing, the outer middle side part of the grinding barrel is fixedly connected with bulge loop, upper end cover is fixed on the left of the main casing, and servo motor is fixedly installed in upper end cover, the lower end of the main shaft is fixedly mounted on the bottom of grinding barrel, spring is provided at left and right sides of the sieving plate, and the right side of sieving plate is arranged in sleeve, steel cable is connected on the left of the sieving plate, and the inside of spring is arranged in steel cable, the other end of the steel cable is connected through left side pedestal with turntable, the fixing axle is connected with positive and negative motor, the bottom of pedestal is arranged in the material collecting tank.This is convenient for the coal mining screening plant of uniform stirring, and moving left and right so that the coal mine on sieving plate is separated faster for sieving plate improves the efficiency of work.
Description
Technical field
The present invention relates to coal mining technology field, specially a kind of coal mining convenient for uniform stirring screening dress
It sets.
Background technique
Coal mine is the mankind in the region of the mining area exploitation coal resources rich in coal, is generally divided into underground mine and outdoor coal
Mine.When coal seam is remote from earth's surface, it is typically chosen to underground and digs tunnel digging coal, this is underground mine, when coal seam is away from earth's surface
Distance it is close when, be typically chosen directly removing surface soil layer excavate coal, this is open coal mine.
Existing coal mining requires for coal mine to be stirred when being sieved impact so that the biggish coal mine of volume
It can preferably be separated, but the stirring crushing of existing stirring grinding device is ineffective, coal mine can not achieve stirring
Uniformly, while the degree of difficulty of coal mine screening is increased.
Summary of the invention
The purpose of the present invention is to provide a kind of coal mining screening plants convenient for uniform stirring, to solve above-mentioned back
The ineffective of existing stirring grinding device is proposed in scape technology, coal mine, which can not achieve, to stir evenly, while increasing coal mine
The problem of sieving degree of difficulty.
To achieve the above object, the invention provides the following technical scheme: a kind of coal mining convenient for uniform stirring is sieved
Screening device, including main casing, servo motor, positive and negative motor and material collecting tank offer sliding slot in the main casing, and in main casing
It is provided with grinding barrel, the outer middle side part of the grinding barrel is fixedly connected with bulge loop, and bulge loop is connected with sliding slot, the main casing
Left side is fixed with upper end cover, and servo motor is fixedly installed in upper end cover, and servo motor is connected with main shaft, the master
The lower end of axis is fixedly mounted on the bottom of grinding barrel, and the upper end of main shaft is provided with driving wheel, and the left side connection of driving wheel
There is driven wheel, the driven wheel is applied in the upper end of rotation axis, and the upper end of rotation axis is connected with upper end cover, the rotation axis
Lower end connected by the lower end of idler wheel and grinding barrel, and impact handle is provided in rotation axis, and strike handle setting and crushing
In bucket, the lower end of the main casing is fixed with pedestal, and sieving plate is provided in pedestal, is respectively provided at left and right sides of the sieving plate
There is spring, and the right side of sieving plate is arranged in sleeve, and sleeve is fixed on the inner wall of pedestal, the left side of the sieving plate
It being connected with steel cable, and the inside of spring is arranged in steel cable, the other end of the steel cable is connected through left side pedestal with turntable, and
Turntable is connected in fixing axle, and the fixing axle is connected with positive and negative motor, and positive and negative motor is fixedly mounted on the left side outside pedestal
On wall, the bottom of pedestal is arranged in the material collecting tank, and the lower end of sieving plate is arranged in material collecting tank.
Preferably, the cross section of the grinding barrel is trapezoidal, and grinding barrel constitutes slide construction by bulge loop and sliding slot, and
And the bottom of grinding barrel is set as Openworks shape, while grinding barrel upper end is openning shape.
Preferably, the driving wheel is to engage connection, and driving wheel and grinding barrel constitute rotating mechanism with driven wheel.
Preferably, the impact handle is set as dipping down ramp-like, and strikes handle and be provided with three groups, and strike the length of handle
It is sequentially reduced from top to bottom, the impact handle and rotation axis constitute rotational structure, and rotation axis is fixedly connected with idler wheel, and is rolled
It takes turns tangent with the bottom surface of grinding barrel.
Preferably, the sieving plate constitutes slide construction by spring and steel cable and sleeve, and sieving plate is square, and
And the side length of sieving plate is greater than the base diameter of grinding barrel.
Preferably, the steel cable constitutes stretching structure by turntable and sieving plate, and one end of steel cable and turntable are fixed and connected
It connects, and the maximum value of steel cable telescopic extensions is less than the length of sleeve.
Compared with prior art, the beneficial effects of the present invention are: the coal mining screening plant of uniform stirring should be convenient for,
1. be provided with main shaft and grinding barrel, when coal mine is crushed in being poured into grinding barrel grinding barrel under the drive of main shaft
It is rotated in main casing, grinding barrel is set as Openworks shape, so that can smoothly drop into sieving plate during stirring and crushing
In, while the grinding barrel of Openworks shape can obstruct the coal mine ground not yet, so that device does not need to carry out other again
The stirring of process is ground, and has saved processing cost；
2. being provided with impact handle and idler wheel, main shaft drives driven wheel rotation so that the idler wheel on driven wheel exists in the course of rotation
It is rotated in grinding barrel, the coal mine in grinding barrel is subjected to impact crushing, while idler wheel grinds the coal mine of grinding barrel bottom,
Coal mine in grinding barrel is adequately crushed, is improved work efficiency；
3. being provided with steel cable and turntable, turntable rotation is driven by positive and negative motor, the rotation of turntable is so that the steel cable on turntable is real
The state for now tensing and loosening squeezes the spring on the left of sieving plate, so that sieving plate is moved to the left, when positive and negative electricity when steel cable tenses
When machine inverts, steel cable is in relaxation state, and sieving plate is pushed into right side by left side spring, so that sieving plate is moved to the left, sieving plate
Move left and right so that the coal mine on sieving plate is separated faster, improve the efficiency of work.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the present invention；
Fig. 2 is enlarged structure schematic diagram at A in Fig. 1 of the present invention；
Fig. 3 connect positive structure diagram with steel cable for the positive and negative motor of the present invention；
Fig. 4 connect overlooking structure diagram with pedestal for sieving plate of the present invention；
Fig. 5 is overlooking structure diagram of the present invention.
In figure: 1, main casing；2, sliding slot；3, grinding barrel；4, bulge loop；5, upper end cover；6, servo motor；7, main shaft；8, main
Driving wheel；9, driven wheel；10, rotation axis；11, handle is struck；12, idler wheel；13, pedestal；14, sieving plate；15, spring；16, sleeve；
17, steel cable；18, turntable；19, fixing axle；20, positive and negative motor；21, material collecting tank.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of screening dress of the coal mining convenient for uniform stirring
Set, including main casing 1, sliding slot 2, grinding barrel 3, bulge loop 4, upper end cover 5, servo motor 6, main shaft 7, driving wheel 8, driven wheel 9, turn
Moving axis 10, impact handle 11, idler wheel 12, pedestal 13, sieving plate 14, spring 15, sleeve 16, steel cable 17, turntable 18, fixing axle 19,
Positive and negative motor 20 and material collecting tank 21 offer sliding slot 2 in main casing 1, and are provided with grinding barrel 3 in main casing 1, outside grinding barrel 3
Middle side part is fixedly connected with bulge loop 4, and bulge loop 4 is connected with sliding slot 2, and the left side of main casing 1 is fixed with upper end cover 5, and upper end
Servo motor 6 is fixedly installed in lid 5, and servo motor 6 is connected with main shaft 7, the lower end of main shaft 7 is fixedly mounted on crushing
The bottom of bucket 3, and the upper end of main shaft 7 is provided with driving wheel 8, and the left side of driving wheel 8 is connected with driven wheel 9, driven wheel 9 passes through
Be through the upper end of rotation axis 10, and the upper end of rotation axis 10 is connected with upper end cover 5, the lower end of rotation axis 10 by idler wheel 12 with
The lower end of grinding barrel 3 connects, and impact handle 11 is provided in rotation axis 10, and strikes handle 11 and be arranged in grinding barrel 3, main casing
The lower end of body 1 is fixed with pedestal 13, and sieving plate 14 is provided in pedestal 13, is provided with spring at left and right sides of sieving plate 14
15, and the right side of sieving plate 14 is arranged in sleeve 16, and sleeve 16 is fixed on the inner wall of pedestal 13, a left side for sieving plate 14
Side is connected with steel cable 17, and the inside of spring 15 is arranged in steel cable 17, and the other end of steel cable 17 runs through left side pedestal 13 and turntable
18 are connected, and turntable 18 is connected in fixing axle 19, and fixing axle 19 is connected with positive and negative motor 20, and positive and negative motor 20 is fixed
It is mounted in the left wall outside pedestal 13, the bottom of pedestal 13 is arranged in material collecting tank 21, and sieving plate 14 is arranged in material collecting tank 21
Lower end.
The cross section of grinding barrel 3 is trapezoidal, and grinding barrel 3 constitutes slide construction by bulge loop 4 and sliding slot 2, and crushes
The bottom of bucket 3 is set as Openworks shape, while 3 upper end of grinding barrel is openning shape, and the coal crushed is made by the grinding barrel 3 of Openworks shape
Mine drops into sieving plate 14, the coal mine not ground can further progress stirring so that coal mine stirring crush it is more uniform.
Driving wheel 8 is to engage connection, and driving wheel 8 and grinding barrel 3 constitute rotating mechanism, pass through rotation with driven wheel 9
Coal mine is transmitted at impact handle 11 by grinding barrel 3, so that coal mine is preferably in contact with impact handle 11.
Impact handle 11 is set as dipping down ramp-like, and strikes handle 11 and is provided with three groups, and strikes the length of handle 11 from upper
It is sequentially reduced under, impact handle 11 and rotation axis 10 constitute rotational structure, and rotation axis 10 is fixedly connected with idler wheel 12, and is rolled
Wheel is 12 tangent with the bottom surface of grinding barrel 3, and the coal mine in grinding barrel 3 is sufficiently stirred by striking handle 11, while idler wheel 12 can be with
The coal mine of bottom is stirred crushing, improves working efficiency.
Sieving plate 14 constitutes slide construction by spring 15 and steel cable 17 and sleeve 16, and sieving plate 14 is square, and
And the side length of sieving plate 14 be greater than grinding barrel 3 base diameter, enable sieving plate 14 by the coal mine in grinding barrel 3 all into
Row is collected and is sieved.
Steel cable 17 constitutes stretching structure by turntable 18 and sieving plate 14, and one end of steel cable 17 and turntable 18 are fixed and connected
It connects, and the maximum value of 17 telescopic extensions of steel cable is less than the length of sleeve 16, by the tension of steel cable 17 and loosens realization screening
Plate 14 moves left and right, so that the coal mine on sieving plate 14 is sufficiently separated.
Working principle: the device is connected with extraneous power supply, according to Fig. 1 and Fig. 5, when the coal mine of exploitation needs to carry out
When crushing, coal mine is poured into the right side of upper end cover 5, coal mine drops into grinding barrel 3, starts servo motor 6, servo motor 6
The main shaft 7 of 5 lower end of upper end cover is driven to rotate, main shaft 7 is fixedly connected with the lower end of grinding barrel 3, so that grinding barrel 3 is in main casing 1
The bulge loop 4 of middle rotation, 3 outside of grinding barrel is connected with the sliding slot 2 of 1 inside of main casing, and the grinding barrel 3 of rotation makes bulge loop 4 exist
It is rotated in sliding slot 2, it is more stable that bulge loop 4 rotates grinding barrel 3, and the rotation of main shaft 7 drives driving wheel 8 to rotate, driving wheel 8
Connection is engaged with driven wheel 9, so that driving wheel 8 drives driven wheel 9 to rotate, driven wheel 9 is connected in rotation axis 10, rotation axis 10
Continue that impact handle 11 is driven to carry out crushed work to coal mine in grinding barrel 3, coal mine is followed in grinding barrel 3 in 1 transfer of main casing
Dynamic, when coal mine movement is when striking at handle 11, impact handle 11 crushes coal mine, and the impact handle 11 of different length makes difference
The coal mine of height is crushed by impact, and the coal mine of 3 bottom of grinding barrel is further ground, made by the idler wheel 12 of 10 lower end of rotation axis
Coal mine it is pulverized more thoroughly；
According to fig. 2 shown in -4, when the coal mine smashed is dropped into the sieving plate 14 in pedestal 13 by the grinding barrel 3 of Openworks shape,
The rear and front end of sieving plate 14 can be slided in pedestal 13, and some tiny coal mine sieves can be drained to material collecting tank by sieving plate 14
In 21, start positive and negative motor 20, positive and negative motor 20 drives fixing axle 19 to rotate, and the turntable 18 connected in fixing axle 19 drives steel cable
17 rotations, so that steel cable 17 is tightened up, the steel cable 17 of tension is pulled sieving plate 14 by pedestal 13 to the left, and sieving plate 14 is to the left
So that the spring 15 in 14 left side of sieving plate is extruded, the spring 15 on 14 right side of sieving plate is stretched in sleeve 16 for mobile meeting, when
When positive and negative motor 20 inverts, steel cable 17 is in relaxation state, so that the left side of sieving plate 14 is no longer influenced by the pulling force of steel cable 17, sieve
The elastic force of the spring 15 in 14 left side of scoreboard can push away to the right sieving plate 14, while the spring 15 in right hand sleeves 16 can restore former length
Degree, so that sieving plate 14 realizes the movement moved left and right under the rotation of positive and negative motor 20, the coal mine on sieving plate 14 can fill
That divides is sized in material collecting tank 21, and this completes entire work.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of coal mining screening plant convenient for uniform stirring, including main casing (1), servo motor (6), positive and negative motor
(20) and material collecting tank (21), it is characterised in that: offers sliding slot (2) in the main casing (1), and be provided in main casing (1)
Grinding barrel (3), the outer middle side part of the grinding barrel (3) is fixedly connected with bulge loop (4), and bulge loop (4) is connected with sliding slot (2), institute
It states and is fixed on the left of main casing (1) upper end cover (5), and be fixedly installed with servo motor (6) in upper end cover (5), and servo
Motor (6) is connected with main shaft (7), and the lower end of the main shaft (7) is fixedly mounted on the bottom of grinding barrel (3), and main shaft (7)
Upper end is provided with driving wheel (8), and driven wheel (9) are connected on the left of driving wheel (8), and the driven wheel (9), which is applied in, to be turned
The upper end of moving axis (10), and the upper end of rotation axis (10) is connected with upper end cover (5), the lower end of the rotation axis (10) passes through rolling
Wheel (12) is connect with the lower end of grinding barrel (3), and impact handle (11) is provided in rotation axis (10), and strikes handle (11) setting
In grinding barrel (3), the lower end of the main casing (1) is fixed with pedestal (13), and sieving plate (14) are provided in pedestal (13),
It is provided with spring (15) at left and right sides of the sieving plate (14), and the right side of sieving plate (14) is arranged in sleeve (16), and
And sleeve (16) is fixed on the inner wall of pedestal (13), is connected with steel cable (17) on the left of the sieving plate (14), and steel cable
(17) setting is connected through left side pedestal (13) with turntable (18) in the inside of spring (15), the other end of the steel cable (17)
It connects, and turntable (18) is connected on fixing axle (19), the fixing axle (19) is connected with positive and negative motor (20), and positive and negative motor
(20) it is fixedly mounted in the left wall of pedestal (13) outside, the material collecting tank (21) is arranged in the bottom of pedestal (13), and material collecting tank
(21) it is arranged in the lower end of sieving plate (14).
2. a kind of coal mining screening plant convenient for uniform stirring according to claim 1, it is characterised in that: described
The cross section of grinding barrel (3) is trapezoidal, and grinding barrel (3) constitutes slide construction by bulge loop (4) and sliding slot (2), and crushes
The bottom of bucket (3) is set as Openworks shape, while grinding barrel (3) upper end is openning shape.
3. a kind of coal mining screening plant convenient for uniform stirring according to claim 1, it is characterised in that: described
Driving wheel (8) is to engage connection, and driving wheel (8) and grinding barrel (3) constitute rotating mechanism with driven wheel (9).
4. a kind of coal mining screening plant convenient for uniform stirring according to claim 1, it is characterised in that: described
Impact handle (11) is set as dipping down ramp-like, and strikes handle (11) and is provided with three groups, and strike the length of handle (11) on to
Under be sequentially reduced, the impact handle (11) and rotation axis (10) constitute rotational structure, and rotation axis (10) and idler wheel (12) are fixed
Connection, and idler wheel (12) and the bottom surface of grinding barrel (3) are tangent.
5. a kind of coal mining screening plant convenient for uniform stirring according to claim 1, it is characterised in that: described
Sieving plate (14) constitutes slide construction by spring (15) and steel cable (17) and sleeve (16), and sieving plate (14) is square,
And the side length of sieving plate (14) is greater than the base diameter of grinding barrel (3).
6. a kind of coal mining screening plant convenient for uniform stirring according to claim 1, it is characterised in that: described
Steel cable (17) constitutes stretching structure by turntable (18) and sieving plate (14), and one end of steel cable (17) and turntable (18) are fixed and connected
It connects, and the maximum value of steel cable (17) telescopic extensions is less than the length of sleeve (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506495X | 2018-12-10 | ||
| CN201811506495 | 2018-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109999987A true CN109999987A (en) | 2019-07-12 |
Family
ID=67177533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910416705.4A Pending CN109999987A (en) | 2018-12-10 | 2019-05-20 | A kind of coal mining screening plant convenient for uniform stirring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109999987A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268893A (en) * | 1985-09-19 | 1987-03-28 | Babcock Hitachi Kk | Strainer for coal-water slurry |
| CN203484185U (en) * | 2013-09-29 | 2014-03-19 | 盘县金阳机械加工有限责任公司 | Grating smashing type powdered coal equipment |
| CN105935659A (en) * | 2016-06-30 | 2016-09-14 | 洛阳益矿机械设备有限公司 | Multi-level vibration screening coal grate |
| CN106140427A (en) * | 2016-07-29 | 2016-11-23 | 扬州锦盛微粉有限公司 | A kind of micropowder manufactures equipment |
| CN106964471A (en) * | 2017-06-02 | 2017-07-21 | 陈鹏 | A kind of colliery crushing and screening device |
| CN107243393A (en) * | 2017-07-14 | 2017-10-13 | 朱正直 | A kind of air-cooled coffee bean pulverizer mill |
| CN107520117A (en) * | 2017-09-01 | 2017-12-29 | 田建珍 | A kind of efficient Sand screen in ore stock ground |
| CN107597247A (en) * | 2017-10-12 | 2018-01-19 | 长沙市凤英机械科技有限公司 | A kind of ore efficient pulverizing screening plant |
-
2019
- 2019-05-20 CN CN201910416705.4A patent/CN109999987A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268893A (en) * | 1985-09-19 | 1987-03-28 | Babcock Hitachi Kk | Strainer for coal-water slurry |
| CN203484185U (en) * | 2013-09-29 | 2014-03-19 | 盘县金阳机械加工有限责任公司 | Grating smashing type powdered coal equipment |
| CN105935659A (en) * | 2016-06-30 | 2016-09-14 | 洛阳益矿机械设备有限公司 | Multi-level vibration screening coal grate |
| CN106140427A (en) * | 2016-07-29 | 2016-11-23 | 扬州锦盛微粉有限公司 | A kind of micropowder manufactures equipment |
| CN106964471A (en) * | 2017-06-02 | 2017-07-21 | 陈鹏 | A kind of colliery crushing and screening device |
| CN107243393A (en) * | 2017-07-14 | 2017-10-13 | 朱正直 | A kind of air-cooled coffee bean pulverizer mill |
| CN107520117A (en) * | 2017-09-01 | 2017-12-29 | 田建珍 | A kind of efficient Sand screen in ore stock ground |
| CN107597247A (en) * | 2017-10-12 | 2018-01-19 | 长沙市凤英机械科技有限公司 | A kind of ore efficient pulverizing screening plant |
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Application publication date: 20190712 |
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| RJ01 | Rejection of invention patent application after publication |