CN104588164A - High pressure double-roller crusher - Google Patents
High pressure double-roller crusher Download PDFInfo
- Publication number
- CN104588164A CN104588164A CN201410750147.2A CN201410750147A CN104588164A CN 104588164 A CN104588164 A CN 104588164A CN 201410750147 A CN201410750147 A CN 201410750147A CN 104588164 A CN104588164 A CN 104588164A
- Authority
- CN
- China
- Prior art keywords
- roll shaft
- roller
- compression roller
- high pressure
- hydraulic cylinder
- 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.)
- Granted
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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
Abstract
The invention relates to a high pressure double-roller crusher, which comprises a feeding device, a discharge device, a rack, a motor, and a regulation device. The motor is connected to one end of a first roller shaft through a power transmission device, the other end of the first roller shaft is connected to one end of a second roller shaft through a transmission device, so that the first roller shaft, the second roller shaft and compression rollers connected to them rotate in opposite directions synchronously. The regulation device is fixed on the rack, and consists of a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed on the rack, the piston of the hydraulic cylinder is fixedly connected to a connecting piece, the connecting piece is in bearing connection with the second roller shaft, the oil cylinder on one hydraulic cylinder side far from the second roller shaft is internally provided with a pressure sensor, the oil inlet pipe of the oil cylinder is provided with an oil pump, the oil outlet pipe of the oil cylinder is provided with a valve, and the pressure sensor is in electric connection with the oil pump and the valve. One motor is used, a unilateral torque support arm is employed to bear torsion, and the fixed roller transmits the torque to the movable roller through a group of floating gears. The transmission way can save 25% of power consumption in cost, and reduces 40% of the floor space.
Description
Technical field
The present invention relates to disintegrating apparatus, be specifically related to a kind of high pressure roller disintegrating machine.
Background technology
Within 1977, Germany have developed the first in the world platform high pressure roller, domestic imitation research and development in 1985.Nowadays roll squeezer is by wide selection, is generalized to coal, metallurgy, chemical industry, mining industry by cement industry.Using roll squeezer as the preceding working procedure of ball mill or directly as the powder-grinding process of brittle material achieve and increase production market effect significantly, roll squeezer can be predicted and substitute the arrival in the ball mill epoch of continuing to use 150 years and come within a measurable distance.With made powder of ball mill be individual particle pulverize, powder has following shortcoming in process from large to small: 1, impact rate of hitting extremely low, its probability is only 1/1000; 2, hit particle to any displacement of surrounding, constraint, can not absorb impulsive force completely; 3, have a Ge Zhitong district in the movement locus that material rotates with cylindrical shell, abrasive body only makes idle work to material in this region, power consumption is large; 4, noise is greatly at 100-130db; 5, the loss of grinding machine serious wear is large; 6, backing surface can adsorb one deck fine powder and plays cushion pad effect, absorbs energy consumption and also causes crushing phenomenon.Limits pressure is applied with to material carries out mill pressure with Vertical Mill powder process (Raymond mill, airflow milling) grinding roller absorption centrifugal force, spring force, fluid power.This mill pressure transmits between material particles, expect that grain grinds meeting relative movement generation shear action, its pulverization principle when pressing and belongs to poor efficiency low pressure bed of material disintegrating apparatus.High pressure roller profile is similar to twin rollers, but operation principle is completely different, belongs to the enclosed high pressure bed of material and pulverizes.But present high pressure crusher is all bi-motor, each driven by motor roller end axle, consumes electric energy larger.
Summary of the invention
The object of this invention is to provide a kind of high pressure roller disintegrating machine, reduce the consumption to electric energy.
Technical scheme of the present invention is specially:
A kind of high pressure roller disintegrating machine, comprise feed arrangement, drawing mechanism 6, frame 1 and motor 4, described frame 1 is provided with the first compression roller 2 and the second compression roller 3 be parallel to each other, its shaft core position all first roll shaft 21 and second roll shafts 31 in being fixed with respectively, motor 4 connects one end of the first roll shaft 21 by power transmission 41, the other end of the first roll shaft 21 connects one end of the second roll shaft 31 by transmission device 8, make the synchronous opposite direction rotating of compression roller that the first roll shaft 21 and the second roll shaft 31 and they connect; Feed arrangement connects the upper end in gap between the first compression roller 2 and the second compression roller 3; Drawing mechanism 6 connects the lower end in gap between the first compression roller 2 and the second compression roller 3.Adjusting device 7 is fixed in frame 1, adjusting device 7 comprises hydraulic cylinder 72, the cylinder body of hydraulic cylinder 72 is fixed in frame 1, the piston 73 of hydraulic cylinder is fixedly connected with connector 71, connector 71 bearing connects the second roll shaft 31, and be provided with pressure sensor in the oil cylinder 74 of hydraulic cylinder 72 apart from the second roll shaft 31 side far away, the oil inlet pipe of oil cylinder 74 is provided with oil pump 76, the flowline of oil cylinder 74 is provided with valve 75, and pressure sensor and oil pump 76, valve 75 electrically connect.
Described transmission device 8 comprises the first idle pulley 81 of engagement and the second idle pulley 82, first roll shaft 21 and the second roll shaft 31 to be fixed the first gear 83 and the second gear 48, first idle pulley 81 respectively and fixes the first gear 83 and engage, and the second idle pulley 82 engages with the second gear 48.
Described first roll shaft 21 and the second roll shaft 31 fix the first gear 83 and the second gear 48 respectively by swelling dish.
Described feed arrangement comprises feed pipe 5, and feed pipe 5 is provided with throttle plate 51 and lower throttle plate 52.
Described feed arrangement comprises the feed hopper be arranged on above feed pipe 5, and feed arrangement arranges tramp iron separator.
Described first roll shaft 21 is fixed in frame 1, and the second roll shaft 31 is located on the sliding part of frame 1, when it slides on sliding part, can regulate the size in gap between the first compression roller 2 and the second compression roller 3.
Described second roll shaft 31 secured adjusted device 7, adjusting device 7 is fixed in frame 1.
Beneficial effect of the present invention is: compared to the prior art, uses a motor, bears torsion with one-sided torque support arm, and moment of torsion to be passed in movable roll by one group of floating gear and keeps synchronous in opposite directions by stationary roll.The power consumption of this load mode escapable cost 25%, reduces by the floor space of 40%.
Accompanying drawing explanation
Fig. 1 is the schematic diagram (side) of invention.
Fig. 2 is the schematic diagram (overlooking) of invention.
Fig. 3 is the schematic diagram (side) of transmission device.
Fig. 4 is the schematic diagram (overlooking surface) of transmission device.
Fig. 5 is the schematic diagram of adjusting device.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of high pressure roller disintegrating machine, comprise feed arrangement, drawing mechanism 6, frame 1 and motor 4, frame 1 is provided with the first compression roller 2 and the second compression roller 3 be parallel to each other, its shaft core position all first roll shaft 21 and second roll shafts 31 in being fixed with respectively, motor 4 connects one end of the first roll shaft 21 by power transmission 41, the other end of the first roll shaft 21 connects one end of the second roll shaft 31 by transmission device 8, make the synchronous opposite direction rotating of compression roller that the first roll shaft 21 and the second roll shaft 31 and they connect.
As shown in Figure 3 and Figure 4, transmission device 8 comprises the first idle pulley 81 and the second idle pulley 82 of engagement, first roll shaft 21 and the second roll shaft 31 are fixed the first gear 83 and the second gear 48, first idle pulley 81 respectively and are fixed the first gear 83 and engage, and the second idle pulley 82 engages with the second gear 48.
First roll shaft 21 and the second roll shaft 31 fix the first gear 83 and the second gear 48 respectively by swelling dish.
As shown in Figure 1; feed arrangement comprises feed pipe 5; feed pipe 5 connects the upper end in gap between the first compression roller 2 and the second compression roller 3; feed pipe 5 is provided with throttle plate 51 and lower throttle plate 52; upper throttle plate 51 ends before shutdown; wait for that discharge nozzle is shut down after unstowing again, guarantee No Load Start.Lower throttle plate 52 discharge adjustable amount, the roll gap realizing setting up can obtain not only saturated but also only stifled feed, prevents from lacking material or supersaturation charging worn roll skin.
As shown in Figure 1, drawing mechanism 6 connects the lower end in gap between the first compression roller 2 and the second compression roller 3.
Feed arrangement comprises the feed hopper be arranged on above feed pipe 5.
When between adjustment first compression roller 2 and the second compression roller 3, gap enters iron block, iron block can not be pulverized, if do not have protective device, the roller skin outside pressure roller is by damaged.
As shown in Figure 1, in order to regulate the size in gap between the first compression roller 2 and the second compression roller 3, the first roll shaft 21 is fixed in frame 1, and the second roll shaft 31 is located on the sliding part of frame 1, when it slides on sliding part, the size in gap between the first compression roller 2 and the second compression roller 3 can be regulated.Second roll shaft 31 secured adjusted device 7, adjusting device 7 is fixed in frame 1.
As shown in Figure 5, adjusting device 7 comprises hydraulic cylinder 72, and the cylinder body of hydraulic cylinder 72 is fixed in frame 1, and the piston 73 of hydraulic cylinder is fixedly connected with connector 71, and connector 71 bearing connects the second roll shaft 31.Be provided with pressure sensor in the oil cylinder 74 of hydraulic cylinder 72 apart from the second roll shaft 31 side far away, the oil inlet pipe of oil cylinder 74 is provided with oil pump 76, and the flowline of oil cylinder 74 is provided with valve 75, and pressure sensor and oil pump 76, valve 75 electrically connect.
Iron block is entered during charging, second roll shaft 31 is to hydraulic cylinder 72 1 lateral movement, now, pressure in oil cylinder 74 is subject to the extruding of piston 73 but pressure increase, after pressure sensor data measured, open valve 75, pressure release opened by flowline in oil cylinder 74, the second roll shaft 31 is made to continue to retreat, after iron block passes through, second roll shaft 31 reduces from the pressure of material, second roll shaft 31 is returned, pressure in oil cylinder 74 reduces, after pressure sensor data measured, valve-off 75, open oil pump 76, make the pressure recover in oil cylinder 74, second roll shaft 31 returns to original position simultaneously, after pressure sensor data measured, oil pump 76 is stopped.The damage of iron block pair roller skin is entered when protecting charging like this.
In order to prevent entering iron block during charging, charging conveying arranges tramp iron separator, reduces the probability that iron block enters.
Its operation principle:
Facts have proved after deliberation, to in material particles crushing process, apply pure pressure and the distortion that produces is five times that apply that pure shear shear force produces distortion, store list particle pulverizes under high pressure 100-300Mpa that required energy consumption is significantly less than the energy consumption of traditional grinding and the pulverizing of individual particle high pressure cannot realize in commercial scale.Only have to material particles group carry out the high pressure bed of material pulverize just have Practical significance, the operation principle of high pressure roller that Here it is.
When material is fed to gap between the first compression roller 2 and the second compression roller 3 from feed arrangement, two pair rollers rely on two levels to install and the compression roller of synchronous opposite direction rotating carries out the pulverizing of the high pressure bed of material, what material was squeezed roller nibbles pressure, the extruding force that material is subject to increases gradually, but pulverized and be squeezed into the drawing mechanism 6 of closely knit material from roller and discharge, this material cake crushing strength is very low, hand is twisted with the fingers just broken, wherein containing a large amount of fine powder, ≤ 2.5mm accounts for 60-70%, wherein coarse granule internal structure is also destroyed, and there is many micro-cracks, is easy to further powder process.
Its feature and summary item:
1, feed hopper, bucket capacity >=3 cubic metre, should be equipped with two bin level indicators (single excellent oscillatory type bin level indicator) and control dispenser feed and stop feed.
2, feed pipe, have two throttle plates, upper throttle plate ends before shutdown, waits for that discharge nozzle is shut down after unstowing again, guarantees No Load Start.Lower throttle plate discharge adjustable amount, the roll gap realizing setting up can obtain not only saturated but also only stifled feed, prevents from lacking material or supersaturation charging worn roll skin.
3, action roller pressure regulates.
4, single motor connects TPB planet-gear speed reducer of new generation, is connected and fixed roller end axle with swelling dish, and the one-sided torque support arm of reductor bears torsion, and moment of torsion to be passed in movable roll by one group of floating gear and keeps synchronous in opposite directions by stationary roll.This load mode escapable cost 25%, reduces by the floor space of 40%.
5, key points for operation:
(1) feeding conveying system must arrange tramp iron separator, guarantees without iron block in charging, for ensureing not enter iron, also should arrange metallic element detector.Can find when tramp iron separator loses efficacy and stop conveyer, removing metal piece.
(2) the work of efficient stable, must ensure that feeding continuously and have certain material pressure.
(3) feed size≤0.025D D-roller footpath aniseed is more impairs smoothness of operation and weight roller shelling damage.
(4) No Load Start, feed well of unstowing before parking.
(5) after shutting down, hydraulic system release should be made, every eight hours grease ups after a stoppage, and check the lubricating status of gear-bearing, and hydraulic electric appliance system should carry out installation and debugging Inspection and maintenance according to industry standard specification.
Claims (6)
1. a high pressure roller disintegrating machine, comprise feed arrangement, drawing mechanism (6), frame (1), motor (4) and adjusting device (7), it is characterized in that: described frame (1) is provided with the first compression roller (2) and the second compression roller (3) that are parallel to each other, its shaft core position is all the first roll shaft (21) and the second roll shaft (31) in being fixed with respectively, motor (4) connects one end of the first roll shaft (21) by power transmission (41), the other end of the first roll shaft (21) connects one end of the second roll shaft (31) by transmission device (8), make the synchronous opposite direction rotating of compression roller that the first roll shaft (21) and the second roll shaft (31) and they connect,
Feed arrangement connects the upper end in gap between the first compression roller (2) and the second compression roller (3);
Drawing mechanism (6) connects the lower end in gap between the first compression roller (2) and the second compression roller (3);
Adjusting device (7) is fixed in frame (1), adjusting device (7) comprises hydraulic cylinder (72), the cylinder body of hydraulic cylinder (72) is fixed in frame (1), the piston (73) of hydraulic cylinder is fixedly connected with connector (71), connector (71) bearing connects the second roll shaft (31), pressure sensor is provided with in the oil cylinder (74) of hydraulic cylinder (72) distance the second roll shaft (31) side far away, the oil inlet pipe of oil cylinder (74) is provided with oil pump (76), the flowline of oil cylinder (74) is provided with valve (75), pressure sensor and oil pump (76), valve (75) electrically connects.
2. high pressure roller disintegrating machine as claimed in claim 1, it is characterized in that: described transmission device (8) comprises the first idle pulley (8) 1 and second idle pulley (82) of engagement, first roll shaft (21) and the second roll shaft (31) fix the first gear (83) and the second gear (48) respectively, first idle pulley (81) with fix the first gear (83) and engage, the second idle pulley (82) engages with the second gear (48).
3. high pressure roller disintegrating machine as claimed in claim 2, is characterized in that: described first roll shaft (21) and the second roll shaft (31) fix the first gear (83) and the second gear (48) respectively by swelling dish.
4. the high pressure roller disintegrating machine as described in claim 1,2 or 3, is characterized in that: described feed arrangement comprises feed pipe (5), and feed pipe (5) is provided with throttle plate (51) and lower throttle plate (52).
5. as the high pressure roller disintegrating machine that claim 4 is stated, it is characterized in that: described feed arrangement comprises the feed hopper being arranged on feed pipe (5) top, and feed arrangement arranges tramp iron separator.
6. high pressure roller disintegrating machine as claimed in claim 1, it is characterized in that: described first roll shaft (21) is fixed in frame (1), second roll shaft (31) is located on the sliding part of frame 1, when it slides on sliding part, the size in gap between the first compression roller (2) and the second compression roller (3) can be regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750147.2A CN104588164B (en) | 2014-12-10 | 2014-12-10 | High pressure double-roller crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750147.2A CN104588164B (en) | 2014-12-10 | 2014-12-10 | High pressure double-roller crusher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104588164A true CN104588164A (en) | 2015-05-06 |
| CN104588164B CN104588164B (en) | 2017-05-24 |
Family
ID=53114417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410750147.2A Expired - Fee Related CN104588164B (en) | 2014-12-10 | 2014-12-10 | High pressure double-roller crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104588164B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964336A (en) * | 2016-03-29 | 2016-09-28 | 中建材（合肥）粉体科技装备有限公司 | Compact roller press |
| CN106140378A (en) * | 2016-08-26 | 2016-11-23 | 中冶北方（大连）工程技术有限公司 | High pressure roller mill charging gear |
| CN108855379A (en) * | 2018-08-31 | 2018-11-23 | 江苏鹏飞集团股份有限公司 | Single-drive synchronous mode roll squeezer |
| CN109174290A (en) * | 2018-08-31 | 2019-01-11 | 江苏鹏飞集团股份有限公司 | Single-drive synchro-meshing corrugated surface roll squeezer |
| CN110944830A (en) * | 2017-07-14 | 2020-03-31 | 魁伯恩机械制造有限责任两合公司 | Roller press and method for determining the filling level |
| CN111729753A (en) * | 2020-06-09 | 2020-10-02 | 广东一鼎科技有限公司 | Automatic recovery device for hydraulic roller press closed car |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2103107A (en) * | 1980-12-04 | 1983-02-16 | Robinson And Son Plc Thomas | Mounting arrangement for a grinding roll |
| CN87204392U (en) * | 1987-07-04 | 1988-04-27 | 中南工业大学 | Single axle dual-roll high pressure grinder |
| CN101745457A (en) * | 2008-12-12 | 2010-06-23 | 上海建设路桥机械设备有限公司 | Fuzzy control system and control method for gear tooth type crusher |
| US20120056027A1 (en) * | 2010-09-02 | 2012-03-08 | Flsmidth A/S | Device for the comminution of material |
| CN202270550U (en) * | 2011-09-29 | 2012-06-13 | 济南金牛砖瓦机械有限公司 | Action roller location control device of roll crushing mill |
| CN203030324U (en) * | 2012-12-21 | 2013-07-03 | 杭州海兴机械有限公司 | Double-roller crusher |
| CN204396071U (en) * | 2014-12-10 | 2015-06-17 | 郑州中鼎重型机器制造有限公司 | A kind of high pressure roller disintegrating machine |
-
2014
- 2014-12-10 CN CN201410750147.2A patent/CN104588164B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2103107A (en) * | 1980-12-04 | 1983-02-16 | Robinson And Son Plc Thomas | Mounting arrangement for a grinding roll |
| CN87204392U (en) * | 1987-07-04 | 1988-04-27 | 中南工业大学 | Single axle dual-roll high pressure grinder |
| CN101745457A (en) * | 2008-12-12 | 2010-06-23 | 上海建设路桥机械设备有限公司 | Fuzzy control system and control method for gear tooth type crusher |
| US20120056027A1 (en) * | 2010-09-02 | 2012-03-08 | Flsmidth A/S | Device for the comminution of material |
| CN202270550U (en) * | 2011-09-29 | 2012-06-13 | 济南金牛砖瓦机械有限公司 | Action roller location control device of roll crushing mill |
| CN203030324U (en) * | 2012-12-21 | 2013-07-03 | 杭州海兴机械有限公司 | Double-roller crusher |
| CN204396071U (en) * | 2014-12-10 | 2015-06-17 | 郑州中鼎重型机器制造有限公司 | A kind of high pressure roller disintegrating machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964336A (en) * | 2016-03-29 | 2016-09-28 | 中建材（合肥）粉体科技装备有限公司 | Compact roller press |
| CN106140378A (en) * | 2016-08-26 | 2016-11-23 | 中冶北方（大连）工程技术有限公司 | High pressure roller mill charging gear |
| CN106140378B (en) * | 2016-08-26 | 2018-03-20 | 中冶北方（大连）工程技术有限公司 | High pressure roller mill charging gear |
| CN110944830A (en) * | 2017-07-14 | 2020-03-31 | 魁伯恩机械制造有限责任两合公司 | Roller press and method for determining the filling level |
| CN108855379A (en) * | 2018-08-31 | 2018-11-23 | 江苏鹏飞集团股份有限公司 | Single-drive synchronous mode roll squeezer |
| CN109174290A (en) * | 2018-08-31 | 2019-01-11 | 江苏鹏飞集团股份有限公司 | Single-drive synchro-meshing corrugated surface roll squeezer |
| CN111729753A (en) * | 2020-06-09 | 2020-10-02 | 广东一鼎科技有限公司 | Automatic recovery device for hydraulic roller press closed car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104588164B (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104588164A (en) | High pressure double-roller crusher | |
| CN201132126Y (en) | Pre-grinding mill | |
| CN201040256Y (en) | Vertical type mill roller powder mill | |
| CN106140377A (en) | A kind of feed manufacturing vertical efficient pulverizer | |
| CN204208612U (en) | A kind of double-geared roller crusher | |
| CN204583318U (en) | A kind of roll-type lime crusher | |
| CN204396071U (en) | A kind of high pressure roller disintegrating machine | |
| CN103111348A (en) | Energy-saving sand pulverizer | |
| CN202752058U (en) | Rotary drum type rotating hammer crusher | |
| CN201353509Y (en) | Micro-control hydraulic fine crusher | |
| CN201632293U (en) | Water-coal-slurry rod mill | |
| CN201030316Y (en) | Star stepped bruising grinder | |
| CN106890705B (en) | A kind of medium-speed pulverizer | |
| CN204396070U (en) | A kind of single motor high pressure roller disintegrating machine | |
| CN201197944Y (en) | Crushing and grinding integrated roll-in grinder | |
| CN100560210C (en) | A kind of vertical ball mill | |
| CN101455988B (en) | Micro-controlled hydraulic fine breaking device | |
| CN202155213U (en) | Combined paired roll type crusher | |
| CN2902454Y (en) | Vertical ball grinder | |
| CN201618591U (en) | Centrifugal roller compacted mill | |
| CN201380087Y (en) | Eccentric cup device for double-geared roller crusher | |
| CN205308414U (en) | Urea breaker is used in water -soluble fertile production | |
| CN102688790B (en) | Multi-roll crusher | |
| CN207324971U (en) | A kind of end grinding vertical | |
| CN208865764U (en) | A kind of impact sand making machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20211210 |