CN205379961U - Granule coal grinder - Google Patents
Granule coal grinder Download PDFInfo
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- CN205379961U CN205379961U CN201620136650.3U CN201620136650U CN205379961U CN 205379961 U CN205379961 U CN 205379961U CN 201620136650 U CN201620136650 U CN 201620136650U CN 205379961 U CN205379961 U CN 205379961U
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- conveyer belt
- motor
- charging aperture
- discharging opening
- strand cable
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Abstract
The utility model discloses a granule coal grinder, including depiler, press, primary mill, refiner, first conveyer belt, second conveyer belt and third conveyer belt, last one -level discharge gate, second -level discharge port and the tertiary discharge gate of being provided with of depiler, the one -level discharge gate with the feed inlet of press passes through first conveyer belt is connected, second -level discharge port with the feed inlet of primary mill passes through the second conveyer belt is connected, tertiary discharge gate with the feed inlet of refiner passes through the third conveyer belt is connected, the discharge gate of press with the butt joint of second conveyer belt, the discharge gate of primary mill with the butt joint of third conveyer belt. The coal soot particle that the device ground out is even, and its simple structure, easy maintenance, and manufacturing cost is lower.
Description
Technical field
This utility model belongs to mechanical field, particularly relates to a kind of particulate coal lapping device.
Background technology
Coal grinding is an important content in clean coal technology, and coal abrasive grains particle size distribution is the key factor affecting the cleaning fuel performances such as water-coal-slurry, and the uniformity of coal abrasive grains is then the important indicator affecting its particle size distribution.Existing coal milling apparatus, the coal particles being ground is uneven, and between granule, different diameters is relatively big, and device structure is complicated, and maintenance cost is high, and cost is high, seriously constrains the popularization and application of clean coal technology.
Summary of the invention
Based on this, for the problems referred to above, the utility model proposes a kind of particulate coal lapping device, the coal particles that this device grinding goes out is uniform, and its simple in construction, and easy to maintenance, manufacturing cost is relatively low.
The technical solution of the utility model is: a kind of particulate coal lapping device, including depiler, crushing machine, primary mill, refiner, first conveyer belt, second conveyer belt and the 3rd conveyer belt, described depiler is provided with one-level discharging opening, secondary discharge port and three grades of discharging openings, described one-level discharging opening is connected by described first conveyer belt with the charging aperture of described crushing machine, described secondary discharge port is connected by described second conveyer belt with the charging aperture of described primary mill, described three grades of discharging openings are connected by described 3rd conveyer belt with the charging aperture of described refiner, the discharging opening of described crushing machine docks with described second conveyer belt, the discharging opening of described primary mill docks with described 3rd conveyer belt.
nullAlternatively，Described depiler includes distribution box、Distribution box erecting bed and the aerator being arranged at described distribution box side，Described distribution box is fixed on described distribution box erecting bed，On described distribution box, the one end near described aerator is provided with funnel-form charging aperture，The first separated material groove successively away from described aerator it is provided with in described distribution box、Second separated material groove and the 3rd separated material groove，And described first separated material groove is positioned at the underface of described funnel-form charging aperture，The bottom of described first separated material groove is provided with one-level discharging opening，The bottom of described second separated material groove is provided with secondary discharge port，The bottom of described 3rd separated material groove is provided with three grades of discharging openings，And described one-level discharging opening、Secondary discharge port and three grades of discharging openings shift to install，The line making the center is not parallel with each seamed edge of described distribution box，Described one-level discharging opening docks with described first conveyer belt，Described secondary discharge port is docked with described second conveyer belt，Described three grades of discharging openings dock with described 3rd conveyer belt.
During work, after the coal that not ground thickness is uneven enters distribution box from funnel-form charging aperture, coal is in the process of lower leakage, aerator air blast makes coal be separated into the coal particles of three kinds of particle size ranges, the coal particles being relatively large in diameter directly lower leakage is to the first separated material groove, and leak to the first conveyer belt under one-level discharging opening, diameter coal particles placed in the middle is blown in the second separated material groove through aerator, and leak to the second conveyer belt under secondary discharge port, the coal particles that diameter is less is blown in the 3rd separated material groove through aerator, and leak to the 3rd conveyer belt under three grades of discharging openings, complete the initial gross separation not grinding coal.
nullAlternatively，Described crushing machine includes crushing machine pedestal、Crush case、Push rod、Motor、Crushing dish、Strand cable、Strand cable strut、Strand cable runner and the first motor，Described crushing case、Strand cable strut、Strand cable runner and the first motor are both secured on described crushing machine pedestal，The side of described crushing case is provided with charging aperture，This charging aperture docks with described first conveyer belt，On described crushing case, the side adjacent with this charging aperture is provided with discharging opening，This discharging opening docks with described second conveyer belt，This discharge outlet is provided with can the baffle plate of folding，In described crushing case, the side relative with this discharging opening is provided with material scraping plate，The one side of this material scraping plate is fixing with one end of described push rod to be connected，The other end of this push rod is fixing with the power transmission shaft of described motor to be connected，Described strand cable strut includes vertically to bar and transverse bar，This is vertically fixed on described crushing machine pedestal to one end of bar，This is vertically connected to the other end of bar is fixing with one end of described transverse bar，The other end of described transverse bar is positioned at the surface at described crushing case center，The two ends of described transverse bar are provided with roller，One end of described strand cable is fixing with described crushing dish to be connected，And this strand cable is sequentially sleeved on described roller，The other end of this strand cable is enclosed within described strand cable runner，The axle that rotates of this strand cable runner is connected by belt with the rotation axle of described first motor.
During work, the coal that on first conveyer belt, particle diameter is bigger enters and crushes in case, first driven by motor strand cable runner rotates to control the lifting of crushing dish, in crushing dish decline process, its lower punch power and Gravitative Loads thereof on coal to crush coal, relatively large coal is made to be crushed to fritter, crushing dish is risen after subscribing the crushing of number of times, open the baffle plate crushing case discharge outlet, motor promotes push rod to make material scraping plate push ahead, and then is pushed on the second conveyer belt by the coal being crushed to fritter.
Alternatively, described primary mill includes primary mill pedestal, first tumbling barrel, a pair running roller, second motor and the 3rd motor, described just tumbling barrel, second motor and the 3rd motor are both secured on described primary mill pedestal, and described second motor and the 3rd motor are positioned at the both sides of described just tumbling barrel, the top of described just tumbling barrel is provided with charging aperture, this charging aperture docks with described second conveyer belt, the side of described just tumbling barrel is provided with discharging opening, this discharging opening docks with described 3rd conveyer belt, the pair of running roller is set in parallel in described just tumbling barrel by bearing, this a pair running roller is in same level, and this pair running roller is symmetrical about a straight line in this horizontal plane, this symmetrical line is positioned at the underface at described just tumbling barrel charging aperture center, the pair of running roller is connected by belt with described second motor and the 3rd motor respectively.
During work, the direct coal separated through distribution box on second conveyer belt all enters in first tumbling barrel with being crushed the coal after machine crushes, coal is in the process entering just tumbling barrel, second motor and the 3rd motor drive the pair of rolls wheel at just tumbling barrel charging aperture place to rotate respectively, coal is pressed again mill, making larger particles coal in coal be worn into more small-particle coal charcoal by pressure, under then under himself gravity, leakage is to the 3rd conveyer belt.
nullAlternatively，Described refiner includes cylindrical box、Abrasive wheel、With abrasive wheel with the use of grinding groove、Lateral shaft、Vertically to axle and the 4th motor，Described cylindrical box top is provided with feeding assembly，This charging group valency includes circular charging aperture and taper sub-material shell，Described circular charging aperture docks with described 3rd conveyer belt，The summit of described taper sub-material shell is positioned at the underface at described circular charging aperture center，Described grinding groove is fixed on the bottom of described cylindrical box，The groove making this grinding groove is positioned at the underface of described taper sub-material shell base circumference，Described abrasive wheel is arranged in the groove of described grinding groove，This abrasive wheel center is provided with bearing，One end of described lateral shaft is fixed in this bearing，The other end of this lateral shaft is connected with described vertically fixing to one end of axle，This is vertically to the other end of axle through the bottom surface of described cylindrical box，And be connected with described 4th motor by belt.
During work, on 3rd conveyer belt, all of coal enters in cylindrical case, coal particles diameter now is comparatively uniform, coal uniformly scatters in grinding groove through circular charging aperture, taper sub-material shell, 4th driven by motor vertically rotates to axle, and then drives transverse axes, finally makes abrasive wheel roll in grinding groove, coal in grinding groove is carried out regrinding, makes coal particles thinner evenly.
The beneficial effects of the utility model are: coal is separated into the coal of different grain size scope by this device, and carry out milled processed respectively, the coal making various particle size range is all fully ground, finally make coal granularity evenly, and its simple in construction, easy to maintenance, manufacturing cost is relatively low, is conducive to the popularization and application of clean coal technology.
Accompanying drawing explanation
Fig. 1 is the top view of particulate coal lapping device described in this utility model embodiment.
Fig. 2 is the structural representation of depiler described in Fig. 1.
Fig. 3 is the structural representation of crushing machine described in Fig. 1.
Fig. 4 is the structural representation of primary mill described in Fig. 1.
Fig. 5 is the structural representation of refiner described in Fig. 1.
Fig. 6 is the top view of cylindrical box described in Fig. 5.
Description of reference numerals:
1 depiler, 2 crushing machines, 3 primary mills, 4 refiners, 5 first conveyer belts, 6 second conveyer belts, 7 the 3rd conveyer belts；
11 distribution boxes, 12 distribution box erecting beds, 13 aerators, 111 funnel-form charging apertures, 112 first separated material grooves, 113 second separated material grooves, 114 the 3rd separated material grooves, 1121 one-level discharging openings, 1131 secondary discharge port, 1,141 3 grades of discharging openings；
21 crushing machine pedestals, 22 crush case, 23 push rods, 24 motors, 25 crushing dishes, 26 strand cables, 27 strand cable struts, 28 strand cable runners, 29 first motors, 221 baffle plates, 222 material scraping plates, and 271 vertically to bar, 272 transverse bars, 2721 rollers；
31 primary mill pedestals, 32 first tumbling barrels, 33 running rollers, 34 second motors, 35 the 3rd motors；
41 cylindrical box, 42 abrasive wheels, 43 grinding grooves, 44 lateral shafts, 45 vertically to axle, 46 the 4th motors, 411 circular charging apertures, 412 taper sub-material shells.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
Embodiment:
As shown in Figure 1, a kind of particulate coal lapping device, including depiler 1, crushing machine 2, primary mill 3, refiner 4, first conveyer belt 5, second conveyer belt 6 and the 3rd conveyer belt 7, described depiler 1 is provided with one-level discharging opening 1121, secondary discharge port 1131 and three grades of discharging openings 1141, described one-level discharging opening 1121 is connected by described first conveyer belt 5 with the charging aperture of described crushing machine 2, described secondary discharge port 1131 is connected by described second conveyer belt 6 with the charging aperture of described primary mill 3, described three grades of discharging openings 1141 are connected by described 3rd conveyer belt 7 with the charging aperture of described refiner 4, the discharging opening of described crushing machine 2 docks with described second conveyer belt 6, the discharging opening of described primary mill 3 docks with described 3rd conveyer belt 7.
nullAs shown in Figure 2，Preferably，Described depiler 1 includes distribution box 11、Distribution box erecting bed 12 and the aerator 13 being arranged at described distribution box 11 side，Described distribution box 11 is fixed on described distribution box erecting bed 12，On described distribution box 11, the one end near described aerator 13 is provided with funnel-form charging aperture 111，The first separated material groove 112 successively away from described aerator 13 it is provided with in described distribution box 11、Second separated material groove 113 and the 3rd separated material groove 114，And described first separated material groove 112 is positioned at the underface of described funnel-form charging aperture 111，The bottom of described first separated material groove 112 is provided with one-level discharging opening 1121，The bottom of described second separated material groove 113 is provided with secondary discharge port 1131，The bottom of described 3rd separated material groove 114 is provided with three grades of discharging openings 1141，And described one-level discharging opening 1121、Secondary discharge port 1131 and three grades of discharging openings 1141 shift to install，The line making the center is not parallel with each seamed edge of described distribution box 11，Described one-level discharging opening 1121 docks with described first conveyer belt 5，Described secondary discharge port 1131 is docked with described second conveyer belt 6，Described three grades of discharging openings 1141 dock with described 3rd conveyer belt 7.
During work, after the coal that not ground thickness is uneven enters distribution box 11 from funnel-form charging aperture 111, coal is in the process of lower leakage, aerator 13 air blast makes coal be separated into the coal particles of three kinds of particle size ranges, the coal particles being relatively large in diameter directly lower leakage is to the first separated material groove 112, and in 1121 times leakages of one-level discharging opening to the first conveyer belt 5, diameter coal particles placed in the middle is blown in the second separated material groove 113 through aerator 13, and in 1131 times leakages of secondary discharge port to the second conveyer belt 6, the coal particles that diameter is less is blown in the 3rd separated material groove 114 through aerator 13, and in 1141 times leakages of three grades of discharging openings to the 3rd conveyer belt 7, complete the initial gross separation not grinding coal.
nullAs shown in Figure 3，Preferably，Described crushing machine 2 includes crushing machine pedestal 21、Crush case 22、Push rod 23、Motor 24、Crushing dish 25、Strand cable 26、Strand cable strut 27、Strand cable runner 28 and the first motor 29，Described crushing case 22、Strand cable strut 27、Strand cable runner 28 and the first motor 29 are both secured on described crushing machine pedestal 21，The side of described crushing case 22 is provided with charging aperture，This charging aperture docks with described first conveyer belt 5，On described crushing case 22, the side adjacent with this charging aperture is provided with discharging opening，This discharging opening docks with described second conveyer belt 6，This discharge outlet is provided with can the baffle plate 221 of folding，In described crushing case 22, the side relative with this discharging opening is provided with material scraping plate 222，The one side of this material scraping plate 222 is fixing with one end of described push rod 23 to be connected，The other end of this push rod 23 is fixing with the power transmission shaft of described motor 24 to be connected，Described strand cable strut 27 includes vertically to bar 271 and transverse bar 272，This is vertically fixed on described crushing machine pedestal 21 to one end of bar 271，This is vertically connected to the other end of bar 271 is fixing with one end of described transverse bar 272，The other end of described transverse bar 272 is positioned at the surface at described crushing case 22 center，The two ends of described transverse bar 272 are provided with roller 2721，One end of described strand cable 26 is fixing with described crushing dish 25 to be connected，And this strand cable 26 is sequentially sleeved on described roller 2721，The other end of this strand cable 26 is enclosed within described strand cable runner 28，The axle that rotates of this strand cable runner 28 is connected by belt with the rotation axle of described first motor 29.
During work, the coal that on first conveyer belt 5, particle diameter is bigger enters and crushes in case 22, first motor 29 drives strand cable runner 28 to rotate to control crushing dish 25 and lifts, in crushing dish 25 decline process, its lower punch power and Gravitative Loads thereof on coal to crush coal, relatively large coal is made to be crushed to fritter, crushing dish 25 is risen after subscribing the crushing of number of times, open the baffle plate 221 crushing case discharge outlet, motor 24 promotes push rod 23 to make material scraping plate 222 push ahead, and then is pushed on the second conveyer belt by the coal being crushed to fritter 6.
nullAs shown in Figure 4，Preferably，Described primary mill 3 includes primary mill pedestal 31、First tumbling barrel 32、A pair running roller 33、Second motor 34 and the 3rd motor 35，Described just tumbling barrel 32、Second motor 34 and the 3rd motor 35 are both secured on described primary mill pedestal 31，And described second motor 34 and the 3rd motor 35 are positioned at the both sides of described just tumbling barrel 32，The top of described just tumbling barrel 32 is provided with charging aperture，This charging aperture docks with described second conveyer belt 6，The side of described just tumbling barrel 32 is provided with discharging opening，This discharging opening docks with described 3rd conveyer belt 7，The pair of running roller 33 is set in parallel in described just tumbling barrel 32 by bearing，This pair running roller 33 is in same level，And this pair running roller 33 is symmetrical about a straight line in this horizontal plane，This symmetrical line is positioned at the underface at described just tumbling barrel 32 charging aperture center，The pair of running roller 33 is connected by belt with described second motor 34 and the 3rd motor 35 respectively.
During work, the direct coal separated through distribution box 11 on second conveyer belt 6 all enters in first tumbling barrel 32 with being crushed the coal after machine 2 crushes, coal is in the process entering just tumbling barrel 32, second motor 34 and the 3rd motor 35 drive a pair running roller 33 at just tumbling barrel 32 charging aperture place to rotate respectively, coal is pressed again mill, making larger particles coal in coal be worn into more small-particle coal charcoal by pressure, under then under himself gravity, leakage is to the 3rd conveyer belt 7.
nullAs shown in Figure 5 and Figure 6，Preferably，Described refiner 4 includes cylindrical box 41、Abrasive wheel 42、With grind 42 take turns with the use of grinding groove 43、Lateral shaft 44、Vertically to axle 45 and the 4th motor 46，Described cylindrical box 41 top is provided with feeding assembly，This charging group valency includes circular charging aperture 411 and taper sub-material shell 412，Described circular charging aperture 411 docks with described 3rd conveyer belt 7，The summit of described taper sub-material shell 412 is positioned at the underface at described circular charging aperture 411 center，Described grinding groove 43 is fixed on the bottom of described cylindrical box 41，The groove making this grinding groove 43 is positioned at the underface of described taper sub-material shell 412 base circumference，Described abrasive wheel 42 is arranged in the groove of described grinding groove 43，This abrasive wheel 42 center is provided with bearing，One end of described lateral shaft 44 is fixed in this bearing，The other end of this lateral shaft 44 is connected with described vertically fixing to one end of axle 45，This is vertically to the other end of axle 45 through the bottom surface of described cylindrical box 41，And be connected with described 4th motor 46 by belt.
During work, on 3rd conveyer belt 7, all of coal enters in cylindrical box 41, coal particles diameter now is comparatively uniform, coal uniformly scatters in grinding groove 43 through circular charging aperture 411, taper sub-material shell 412,4th motor 46 drives and vertically rotates to axle 45, and then drives lateral shaft 44 to rotate, and finally makes abrasive wheel 42 roll in grinding groove 43, coal in grinding groove 43 is carried out regrinding, makes coal particles thinner evenly.
Embodiment described above only have expressed detailed description of the invention of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.
Claims (5)
1. a particulate coal lapping device, it is characterized in that, including depiler, crushing machine, primary mill, refiner, first conveyer belt, second conveyer belt and the 3rd conveyer belt, described depiler is provided with one-level discharging opening, secondary discharge port and three grades of discharging openings, described one-level discharging opening is connected by described first conveyer belt with the charging aperture of described crushing machine, described secondary discharge port is connected by described second conveyer belt with the charging aperture of described primary mill, described three grades of discharging openings are connected by described 3rd conveyer belt with the charging aperture of described refiner, the discharging opening of described crushing machine docks with described second conveyer belt, the discharging opening of described primary mill docks with described 3rd conveyer belt.
null2. particulate coal lapping device according to claim 1，It is characterized in that，Described depiler includes distribution box、Distribution box erecting bed and the aerator being arranged at described distribution box side，Described distribution box is fixed on described distribution box erecting bed，On described distribution box, the one end near described aerator is provided with funnel-form charging aperture，The first separated material groove successively away from described aerator it is provided with in described distribution box、Second separated material groove and the 3rd separated material groove，And described first separated material groove is positioned at the underface of described funnel-form charging aperture，The bottom of described first separated material groove is provided with one-level discharging opening，The bottom of described second separated material groove is provided with secondary discharge port，The bottom of described 3rd separated material groove is provided with three grades of discharging openings，And described one-level discharging opening、Secondary discharge port and three grades of discharging openings shift to install，The line making the center is not parallel with each seamed edge of described distribution box，Described one-level discharging opening docks with described first conveyer belt，Described secondary discharge port is docked with described second conveyer belt，Described three grades of discharging openings dock with described 3rd conveyer belt.
null3. according to the arbitrary described particulate coal lapping device of claim 1 or 2，It is characterized in that，Described crushing machine includes crushing machine pedestal、Crush case、Push rod、Motor、Crushing dish、Strand cable、Strand cable strut、Strand cable runner and the first motor，Described crushing case、Strand cable strut、Strand cable runner and the first motor are both secured on described crushing machine pedestal，The side of described crushing case is provided with charging aperture，This charging aperture docks with described first conveyer belt，On described crushing case, the side adjacent with this charging aperture is provided with discharging opening，This discharging opening docks with described second conveyer belt，This discharge outlet is provided with can the baffle plate of folding，In described crushing case, the side relative with this discharging opening is provided with material scraping plate，The one side of this material scraping plate is fixing with one end of described push rod to be connected，The other end of this push rod is fixing with the power transmission shaft of described motor to be connected，Described strand cable strut includes vertically to bar and transverse bar，This is vertically fixed on described crushing machine pedestal to one end of bar，This is vertically connected to the other end of bar is fixing with one end of described transverse bar，The other end of described transverse bar is positioned at the surface at described crushing case center，The two ends of described transverse bar are provided with roller，One end of described strand cable is fixing with described crushing dish to be connected，And this strand cable is sequentially sleeved on described roller，The other end of this strand cable is enclosed within described strand cable runner，The axle that rotates of this strand cable runner is connected by belt with the rotation axle of described first motor.
null4. particulate coal lapping device according to claim 3，It is characterized in that，Described primary mill includes primary mill pedestal、First tumbling barrel、A pair running roller、Second motor and the 3rd motor，Described just tumbling barrel、Second motor and the 3rd motor are both secured on described primary mill pedestal，And described second motor and the 3rd motor are positioned at the both sides of described just tumbling barrel，The top of described just tumbling barrel is provided with charging aperture，This charging aperture docks with described second conveyer belt，The side of described just tumbling barrel is provided with discharging opening，This discharging opening docks with described 3rd conveyer belt，The pair of running roller is set in parallel in described just tumbling barrel by bearing，This pair running roller is in same level，And this pair running roller is symmetrical about a straight line in this horizontal plane，This symmetrical line is positioned at the underface at described just tumbling barrel charging aperture center，The pair of running roller is connected by belt with described second motor and the 3rd motor respectively.
null5. particulate coal lapping device according to claim 4，It is characterized in that，Described refiner includes cylindrical box、Abrasive wheel、With abrasive wheel with the use of grinding groove、Lateral shaft、Vertically to axle and the 4th motor，Described cylindrical box top is provided with feeding assembly，This charging group valency includes circular charging aperture and taper sub-material shell，Described circular charging aperture docks with described 3rd conveyer belt，The summit of described taper sub-material shell is positioned at the underface at described circular charging aperture center，Described grinding groove is fixed on the bottom of described cylindrical box，The groove making this grinding groove is positioned at the underface of described taper sub-material shell base circumference，Described abrasive wheel is arranged in the groove of described grinding groove，This abrasive wheel center is provided with bearing，One end of described lateral shaft is fixed in this bearing，The other end of this lateral shaft is connected with described vertically fixing to one end of axle，This is vertically to the other end of axle through the bottom surface of described cylindrical box，And be connected with described 4th motor by belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136650.3U CN205379961U (en) | 2016-02-24 | 2016-02-24 | Granule coal grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136650.3U CN205379961U (en) | 2016-02-24 | 2016-02-24 | Granule coal grinder |
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| Publication Number | Publication Date |
|---|---|
| CN205379961U true CN205379961U (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620136650.3U Expired - Fee Related CN205379961U (en) | 2016-02-24 | 2016-02-24 | Granule coal grinder |
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| Country | Link |
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| CN (1) | CN205379961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562187B (en) * | 2016-02-24 | 2018-06-01 | 福建将乐天马生物质能源有限公司 | A kind of particulate coal grinding device |
-
2016
- 2016-02-24 CN CN201620136650.3U patent/CN205379961U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562187B (en) * | 2016-02-24 | 2018-06-01 | 福建将乐天马生物质能源有限公司 | A kind of particulate coal grinding device |
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Granted publication date: 20160713 Termination date: 20180224 |