CN2333442Y - Centrifugal grinder - Google Patents
Centrifugal grinder Download PDFInfo
- Publication number
- CN2333442Y CN2333442Y CN 98229225 CN98229225U CN2333442Y CN 2333442 Y CN2333442 Y CN 2333442Y CN 98229225 CN98229225 CN 98229225 CN 98229225 U CN98229225 U CN 98229225U CN 2333442 Y CN2333442 Y CN 2333442Y
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- rotating disk
- housing
- rotary blade
- centrifugal
- classification
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Abstract
The utility model relates to a centrifugal flour mill without grinding mediums, which comprises a casing with a feed inlet, a turn-plate and a grading rotating impeller arranged on the upper part and the lower part of the casing inside and respectively drove by respective power installations, an adjustable inner feedback device positioned on the casing, a material discharging chamber with a discharge hole positioned above the grading rotating impeller and an air inlet chamber with an air intake positioned under the turn-plate. The utility model has advantages of the convenience of the grading adjustment, narrow product grain-size distribution, favorable effect of fine grinding and extra-fine grinding, favorable utilization of the energy distribution, reasonable structure, fastness, durableness, reliable operation, convenience for examining and fixing, etc.
Description
The utility model relates to crushing and grinding machinery, and particularly relating to does not have the flour mill that mill is situated between.Be applicable to the dry type grinding that industries such as mining, metallurgy, building materials, chemical industry, pottery, coal dust mince firmly and expect.
The mechanical type that is used for hard crisp material grinding has been a lot of, and wherein vertical shaft, horizontal rotating disc, the centrifugal autogenous grinding flour mill of no ball whirlwind are the new machine that developed recently gets up.The patent No. be ZL95217889.X's " mill without ball ", the patent No. be ZL95242514.9's " adjustable cyclonic formula mill without ball ", the patent No. is ZL96233076.0's Chinese utility model patents such as " centrifugal grinders ", and the application number of Chinese invention patent communique publication is 97107654.5 " impact pneumatic grinding mill ", all successively discloses the major technique of such flour mill.The primary structure of such flour mill is to be installed in samely on the vertical shaft of housing with being positioned at the rotating disk on lower housing portion and top and classification rotary blade, is driven by same power set.Housing is provided with material import and export, and the rotating disk card is provided with several bars, between the outer rim of rotating disk and the shell wall side annular gap is arranged.Such flour mill has had mills such as not using steel ball, rod iron and has been situated between and the advantage of energy grinding harder objuct material, and in light weight, and floor space is little, and noise is little, and the ratio of reduction is big, and finished product grain size is thinner.But not enough is material autogenous grinding poor performance, and the body wearing and tearing are big, change shortcomings such as vulnerable part difficulty.Superfine grinding autogenous grinding poor performance particularly, the main shaft that runs through up and down makes the adjusting mutual restriction of grinding, classification, the several important parameters of air quantity, classification inconvenience, particle diameter distributes wide, and main shaft has suitable major part to expose in the grinding district, and wearing and tearing are big, and reliable performance is poor.
It is easy to adjust that first purpose of the present utility model provides a kind of classification, the finished product grain size narrowly distributing, energy distribution is made good use of, and rational in infrastructure, firm and durable, reliable, overhaul centrifugal grinder easily.
Second purpose of the present utility model is to improve the grinding autogenous grinding effect, particularly superfine grinding autogenous grinding effect of centrifugal grinder.
First purpose of the present utility model realizes by taking following technical measures.
Centrifugal grinder comprises housing, be positioned at the feed pipe on the housing, be installed in the independent separately rotating shaft by the rotating disk and the classification rotary blade that lay respectively at bottom and top in the housing that drive of power set independently separately, be positioned at the rotating disk below and contain the inlet air plenum of air inlet, be positioned at classification rotary blade top and contain the discharge chamber of finished product materials outlet, and be arranged on the feeding back device on the housing.The card of rotating disk is provided with several bars, between rotating disk outer rim and its corresponding shell internal face annular gap is arranged, and inlet air plenum communicates with this annular gap, discharges the chamber and communicates with the outlet of classification rotary blade.
Second purpose of the present utility model be on the basis of technique scheme by taking following technical measures to realize:
Rotating disk outer rim corresponding shell internal face is provided with the replaceable wear-resisting lining that is made of the several piece abrasion-proof backing block, and design has the hole groove that strengthens the autogenous grinding performance on the wear-resisting lining wooden partition.
In order to realize the purpose of this utility model better, the utility model has also been taked following technical measures;
Abrasion-proof backing block is embedded in the socket joint mode and constitutes wear-resisting lining between the stationary barrier.
The blanking dish of horn shape is set above rotating disk, and the blanking dish is fixed on the housing, and its loudspeaker are sucked and tapped into the outlet of material pipe.
Between inner walls and blanking dish, be provided with fence.
Be processed with some hole slots that communicate with the draft chamber in the card of rotating disk, below rotating disk, be provided with centrifugal rotary blade in company with the rotating disk rotation.
The housing in the broken mill of flour mill district is jacket structured for what cool off with cooling water.
Feeding back device is made of feed back passage, feed back passages regulate plate and feed back pipe, and the port of export of feed back pipe is positioned at after the air inlet of a blast pipe, and the other end is connected with the feed back passage.
Classification pivoting leaf wheel disc and material are discharged the labyrinth seal that is sealed between the flange of chamber, and the blowback blade is set on the impeller disk at top, labyrinth seal labyrinth.The bearing block of the bearing block of classification rotary blade being installed and rotating disk being installed all be with cooling water cool off jacket structured.
The utility model has also been taked some other technical measures.
Accompanying drawing 1 is the structural representation of an embodiment of the utility model.
Accompanying drawing 2 is structural representations of another embodiment of the utility model.
Accompanying drawing 3 is that the adjustable plate B of feeding back device in accompanying drawing 1 and the accompanying drawing 2 is to view.
Accompanying drawing 4 are accompanying drawings 1 with accompanying drawing 2 in the impeller disk with discharge the local I enlarged drawing that the chamber is connected.
Accompanying drawing 5 is that the A-A of accompanying drawing 1 is to the sectional structure schematic diagram
Accompanying drawing 6 is that the A-A of accompanying drawing 2 is to the sectional structure schematic diagram
Provide embodiment of the present utility model below in conjunction with the explanation of accompanying drawing drawing, and the utility model is described in further detail by embodiment.
Embodiment 1
Referring to accompanying drawing 1, accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5.Centrifugal grinder integral body is vertical structure, by housing, be arranged on feed pipe and feeding back device on the housing, be positioned at the housing internal upper part classification rotary blade 4, be positioned at the horizontal rotating disk 15 of housing bottom, and be positioned at material that classification rotary blade top is installed in the housing upper end and discharge chamber 28 and be positioned at the rotating disk below and constitute with the inlet air plenum 17 that the housing bottom is fixedly connected.Housing is the combination housing, and bottom inverted cone shape chuck cylindrical shell is the grinding district housing of flour mill, surrounds rotating disk.Being full of in the chuck has cooling water, and cooling water will conduct the material of giving housing heat broken and that grinding process produces to be taken away.Be provided with one deck abrasion-proof backing block 20 in the housing chuck inwall, abrasion-proof backing block has several piece, and the dovetail socket joint by mutual coupling connects to pay and is embedded between the stationary barrier 8.It is very convenient that this mounting structure is changed liner plate.Design has the pit 40 that adjoins mutually on the wall of the relative rotating disk direction of abrasion-proof backing block.Pit has strengthened the material spin intensity, has improved material autogenous grinding effect.Blanking dish 7 props up in the top of rotating disk 15 by an arm sling of stationary barrier 8.Solid on the chuck inwall above the abrasion-proof backing block 20, being equipped with is inclined upwardly points to the fence 9 of blanking dish.By the annular space 10 that fence, blanking dish, rotating disk and abrasion-proof backing block constitute, promptly cavity of resorption is the broken mill district of flour mill.The space 6 that the cingens broken mill of upper shell district is above, promptly epicoele is the material branch constituency of flour mill.Be placed in the feed pipe on the housing, an end is positioned at outside the housing, communicates with atmosphere, is provided with feed hopper 5 at this end, the other end, and promptly discharging opening one end is positioned at the horn mouth of horn-like blanking dish.The feeding back device that is arranged on the housing is made of feed back passage 26, feed back passages regulate plate 27 and feed back pipe 22, the feed back passage communicates with the feed back pipe, and the discharging opening of feed back pipe is positioned at the horn mouth of blanking dish, and its other end 23 communicates with atmosphere, being the feed back observation panel, is again the secondary air mouth.Adjustable plate 27 is two, is fixed on the housing by set bolt 24 respectively and (sees accompanying drawing 3).Can regulate the output of product and the particle diameter of product by opening 32 areas of regulating the feed back passage.The 37th, housing is discharged the ring flange that the chamber is connected, the 25th, access door with material.The horizontal rotating disk that is positioned at the broken mill of housing district is installed on the vertical shaft 13 that is complementary with bearing block 2, between the outer rim of rotating disk and the abrasion-proof backing block 20 annular gap is arranged, and settles 8 bars 16 in the upper disk surface of rotating disk symmetrically.Bar is installed with on rotating disk rotationally by support 43 and the bolt 42 that is fixed on the rotating disk.In the card of rotating disk, be processed with the passage 44 that communicates with inlet air plenum, and be processed with large-sized through hole 41 in the bar back of rotating disk rotation direction.The effect one in this hole is to make the air of inlet air plenum enter the card space, the 2nd, and the material on making dish after the parking falls into inlet air plenum, discharges from the discharging opening 12 of inlet air plenum again, starts load next time to reduce.Bar on the rotating disk also has two effects, and the one, the hammering material makes the material fragmentation, the 2nd, play centrifuge blade, make that gas centrifugation rotatablely moves on the card, rotatablely move than the material of small particle diameter is also centrifugal thereupon thereby drive, storeroom produces collision and autogenous grinding mutually.39 is housing chuck inwall.Referring to accompanying drawing 5.The rotating speed of rotating disk is determining the broken mill efficient of machine.The rotating speed of rotating disk is higher, therefore settles the bearing block 2 of rotating disk jacket structured for what cool off with cooling water, be fixed on the housing of inlet air plenum, and the 11st, the cooling water water inlet pipe and water outlet pipe.The bottom of inlet air plenum is provided with discharging opening 12.On the blast pipe 18 of inlet air plenum intake adjustment doors 19 is set.The 14th, the labyrinth seal of bearing.Classification rotary blade 4 is driven by belt gear 1 by the buncher 3 that is placed on the main casing by being installed with discharging the bearing block 2 on 28 housings of chamber and being placed in the main casing inner top with rotating shaft that bearing block is complementary.The rotating speed of classification rotary blade is restricting the granularity of product, and rotating speed is high more, and product granularity is more little, otherwise big more.For the ease of regulating the particle diameter of product, impeller adopts the motor-driven of adjustable rotating speed.Classifying turbine is a back taper, and the next top is what seal.Bearing block 2 is jacket structured for what cool off with cooling water.The 11st, the water inlet pipe and water outlet pipe of cooling water.The end plate 31 of classification rotary blade and discharge and to be sealed into labyrinth sealing 34 between ring flange 33 (or the shell flange dishes) of chamber, and blowback vanelets 36 (seeing accompanying drawing 4) is set on the impeller end plate of labyrinth seal 34 labyrinth initiating terminals, discharge the chamber to prevent that near the gas in space is carried secretly the shell wall side big particle diameter material from being entered by labyrinth, guarantee the quality of product material.The 37th, shell flange.The 38th, flange gasket.The 35th, the blade of classification rotary blade.
Referring to accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 and accompanying drawing 6.Present embodiment and embodiment 1 different place is a feeding back device, rotating disk and abrasion-proof backing block.Other structures are all identical with embodiment 1.In the present embodiment, the feed back pipe 22 of feeding back device is positioned at outside the housing, and its discharging opening taps on the blast pipe 18 of air compartment 17, is positioned at after the air inlet adjustment door 19, is different from the feeding back device (seeing accompanying drawing 2) among the embodiment 1.Be provided with special secondary wind inleting tube 30 in addition.The entrance point of blast pipe is positioned at outside the housing, and the port of export is positioned at blanking dish 7.In the present embodiment, the rotating disk below is provided with the centrifugal rotary blade 29 that rotates synchronously with rotating disk, and impeller can take to be provided with on the card structure (seeing accompanying drawing 6) of centrifuge blade 46 under rotating disk.The position design that abrasion-proof backing block 20 is corresponding with rotary blade has superfine grinding pit 45, and rotary blade outer rim abrasion-proof backing block pairing with it constitutes the superfine grinding district of flour mill.The feasible material that comes out from the feed back pipe of this structure is along with the air-flow that enters inlet air plenum, when entering the superfine grinding district, owing under the effect of centrifugal rotary blade, rotate autogenous grinding strongly in the superfine grinding pit.The product cut size that the flour mill of present embodiment is produced is thinner.
The course of work of the present utility model and principle are as follows:
The classification rotary blade is high speed rotating under the driving of its power set, and with the housing epicoele, promptly the gas in the branch constituency is discharged the branch constituency with the material that is entrained in the gas, and outside discharging chamber discharge machine, the gas pressure in the housing is lower than the outer gas pressure of housing.Under the effect of negative pressure, enter a wind of inlet air plenum from blast pipe, passage 44 and the annular gap between rotating disk and the abrasion-proof backing block from the rotating disk enters housing branch constituency again.The air-flow that enters the branch constituency has stoped material to fall into inlet air plenum from passage and annular space on the rotating disk simultaneously.Drop down onto the material of rotating disk central authorities from feed pipe through the blanking dish because rotating disk rotation at a high speed under the driving of power set, under action of centrifugal force to the peripheral motion of rotating disk.Because the asynchronous motion with rotating disk of material by the bar of high-speed motion bump, produces fragmentation for the first time, broken fragment rushes at abrasion-proof backing block with higher speed, is crashed littler fragment.Wherein partial material is upwards run into the annular shape fence that is made into by rod iron and is kept off go back to broken mill district, and partial material splashes to the bar place again and is subjected to the bar bump once more, is broken into the more material of small particle diameter.In addition, because the effect that the bar on the rotating disk also has fan blade, make the strong rotation of gas high speed that enters brokenly the mill district from inlet air plenum, the high speed swirling eddy is carrying the hole groove high speed eddying motion of material on abrasion-proof backing block that is broken into than fine grain, produce the strong collision grinding with the material that poured afterwards, material is by the broken particle diameter of wearing into product requirement.The bed course that the rotation material forms has also alleviated the impact wear of material to liner plate.Because the centrifuge blade effect of bar on the rotating disk, make the gas pressure of rotating disk middle section minimum, carrying material and after the gas after the fence screening enters housing branch constituency, rotating ascending motion, and making the innermost layer gas flow rotating disk central area that enters housing branch constituency.In time discharge in order to make satisfactory material, prevent to rotate the gas of rising too much flow to rotating disk central authorities, to rotating disk central authorities make-up gas, promptly secondary air rotatablely moves to guarantee broken the gas that mill is distinguished by feed pipe and feed back pipe (or secondary wind inleting tube of revolving door).Along with the rising of swirling eddy, the less material of particle diameter is positioned at rotation ascending air internal layer, and the material that particle diameter is bigger is positioned at rotation ascending air skin.The material that meets the product cut size requirement is drained into by the classification rotary blade in company with gas discharges the chamber, collect by the strong negative pressure gathering system that is connected with discharge chamber discharging opening then, the material that does not meet the product cut size requirement is kept off back by the blade of classification rotary blade, or drop down onto below the impeller, along with the gas flow rotating disk central authorities that flow to rotating disk central authorities enter brokenly the mill district, or fall into outer gas flow, along with air-flow enters feeding back device, turn back to rotating disk central authorities by feeding back device again and enter brokenly the mill district.Rotate the bigger material of particle diameter that the ascending air skin carries in addition, along with air-flow rises, by the size of its particle diameter and weight, successively enter the feeding back device charging aperture that is arranged on the shell wall side again, turn back to rotating disk central authorities from feeding back device, experience the primary fragmentation grinding again.For embodiment 2, the material that returns carries out grinding earlier one time along with a wind is introduced into the ultra-fine mill district that is made of the hole of the fine grinding on centrifugal rotary blade and abrasion-proof backing block groove, enters brokenly the mill district again, carries out grinding again.
The adjusting of product granularity and output.Product cut size also is subjected to the influence of feeding back device feed back channel entrance area except the restriction that mainly is subjected to classification rotary blade rotating speed, inlet-duct area is big, and the granularity of product is little, otherwise then big.Therefore regulating product granularity can realize by rotating speed and the feed back channel entrance area of regulating the classification rotary blade.The output of product is influenced by the rotating speed of rotating disk mainly, the high broken mill efficient height of rotating speed, and output is just big, otherwise then just little, therefore can regulate product yield by regulating rotary speed.
Compared with the prior art the utility model has following relatively more outstanding advantage:
1. the adjustable feeding back device of the utility model unique design large granular materials that gas is carried in time returns with to broken mill The district, this had both saved and can disappear, and can avoid again the bigger material of particle diameter to sneak into product, had improved the grading precision, also alleviated The live load of impeller, prolonged service life of classification rotary blade.
2. the utility model specially designed broken mill district and Ultrafine Grinding plot structure are subjected to earlier so that enter brokenly the material in mill district Hammering, after be subjected to the bump of wearing plate and fence, and then in the groove mesoscale eddies grinding of the hole of abrasion-proof backing block, namely material is subjected to The compound action of fragmentation and grinding. Therefore, the mill efficiency height, the autogenous grinding performance is good, and reasonable energy utilization has reduced energy consumption.
Since classification rotary blade and rotating disk by separately independently power set drive, therefore can be according to the different material branch Do not regulate the rotating speed of impeller and rotating disk, can adapt to different hardness, the wide ranges of different-grain diameter material, classification acutance height, product Quality is good and stablize. Because rotating shaft does not have the part of exposing in cavity, not worn and torn by material impact again, long service life, Operate steadily.
4. owing to be sealed into labyrinth seal between classification rotary blade end plate and the discharge chamber mounting flange, good sealing effect, And initiating terminal impeller end plate is provided with the blowback blade on the labyrinth seal labyrinth, has stopped in the cavity oarse-grained fully Material enters the possibility of discharging the chamber, has guaranteed the product granularity precision.
5. specially designed blanking tray has guaranteed that the material that adds enters brokenly the mill district in an orderly manner, has prevented that material is at cavity Interior unhelpful motion. And specially designed fence has not only prevented the broken mill of material escape district, and it is broken also to have increased material impacting Broken probability, namely the structure of these two uniquenesses of the utility model has been avoided unnecessary energy consumption, has improved the energy utilization Rate has also improved crushing efficiency.
6. because the grinding of material mainly results from the material of abrasion-proof backing block pit mesoscale eddies motion and the thing in the impact dent The mutual grinding of material, the material that the material pad of rotation has avoided again high-speed punching to come in directly impacts on the abrasion-proof backing block, and is wear-resisting Liner plate has been subjected to protection, and wearing and tearing reduce, long service life, and the iron-holder of product is low. Again because abrasion-proof backing block adopts swallow Tail socket joint draw bail is installed in inner walls, and it is very convenient to change installation, and the operating maintenance expense is low.
Since the metal (upper seat taked with cooling water cool off jacket structured, guaranteed that bearing is at suitable ring Work under the border, reliable, long service life.
The utility model also has the following advantages except above-mentioned advantage: because the broken mill process of material is carried out under negative pressure, do not have Dust leaks, good work environment; Movement parts is few, overhauls and change consumable accessory, wearing piece conveniently, and maintenance cost is low; The ratio of reduction Greatly, can be implemented in the machine from small, broken bits to superfine grinding, complete machine is in light weight, and floor space is little, and it is low etc. that factory building and basis require Advantage.
Claims (10)
1. centrifugal grinder, comprise housing, be positioned at the feed pipe on the housing, be installed in the rotating disk (15) and classification rotary blade (4) that lay respectively at lower housing portion and top in the rotating shaft, be mounted with bar (16) on the rotating disk card, between rotating disk outer rim and its corresponding inner walls face annular gap is arranged, it is characterized in that flour mill also is provided with the inlet air plenum (17) that contains air inlet (18), contain the discharge chamber (28) of material outlet and be positioned at feeding back device on the housing, inlet air plenum is positioned at the rotating disk below, communicate with the annular gap between rotating disk and the inner walls face, discharge the chamber and be positioned at classification rotary blade top, communicate with the outlet of classification rotary blade, rotating disk and classification rotary blade are installed in respectively separately in the independently rotating shaft, by independently power set driving separately.
2. centrifugal grinder according to claim 1 is characterized in that rotating disk outer rim corresponding shell internal face is provided with the replaceable wear-resisting lining that is made of several piece abrasion-proof backing block (20), and design has the hole groove (40) that strengthens the autogenous grinding performance on the abrasion-proof backing block.
3. centrifugal grinder according to claim 2 is characterized in that abrasion-proof backing block is embedded between the stationary barrier (8) in the socket joint mode.
4. according to claim 1 or 2 or 3 described centrifugal grinders, it is characterized in that being provided with the blanking dish (7) of horn mouth shape above rotating disk, the blanking dish is fixed on the housing, and its loudspeaker are sucked and tapped into the outlet of material pipe.
5. centrifugal grinder according to claim 4 is characterized in that being provided with fence (9) between inner walls and blanking dish.
6. according to claim 1 or 2 or 3 or 5 described centrifugal grinders, it is characterized in that being processed with in the rotating disk card some hole slots that communicate with inlet air plenum, the rotating disk below is provided with centrifugal rotary blade (29).
7. according to claim 1 or 2 or 3 or 5 described centrifugal grinders, it is characterized in that chuck (21) structure of housing wall for cooling off in the broken mill of flour mill district with cooling water.
8. according to claim 1 or 2 or 3 or 5 described centrifugal grinders, it is characterized in that feeding back device is made of feed back passage (26), feed back passages regulate plate (27) and feed back pipe (22), the outlet of feed back pipe is positioned at after the air inlet of a blast pipe (18), and the other end and feed back passage join.
9. according to claim 1 or 2 or 3 or 5 described centrifugal grinders, it is characterized in that classification pivoting leaf wheel disc and material are discharged to be sealed into labyrinth sealing (34) between the chamber flange (31), and blowback blade (36) is set on the impeller disk at labyrinth seal top.
10. according to claim 1 or 2 or 3 or 5 described centrifugal flour mills, the bearing block (2) that it is characterized in that installing the bearing block (2) of classification rotary blade (4) and rotating disk (15) is installed all be with cooling water cool off jacket structured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229225 CN2333442Y (en) | 1998-08-03 | 1998-08-03 | Centrifugal grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229225 CN2333442Y (en) | 1998-08-03 | 1998-08-03 | Centrifugal grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2333442Y true CN2333442Y (en) | 1999-08-18 |
Family
ID=33979149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229225 Expired - Fee Related CN2333442Y (en) | 1998-08-03 | 1998-08-03 | Centrifugal grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2333442Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364669C (en) * | 2006-01-24 | 2008-01-30 | 庞德明 | Compound type regrind mill |
| CN102814215A (en) * | 2012-08-09 | 2012-12-12 | 常州市亚邦亚宇助剂有限公司 | High-efficiency disc-type sanding device |
| CN103341384A (en) * | 2013-07-14 | 2013-10-09 | 唐新民 | Ultrafine grinder for high hardness material |
| CN104324795A (en) * | 2014-10-28 | 2015-02-04 | 无锡快邦医疗科技有限公司 | Medical crushing unit |
| CN104437747A (en) * | 2014-10-16 | 2015-03-25 | 贵州良济药业有限公司 | Traditional Chinese medicine raw material powder preparing device |
| CN109579509A (en) * | 2018-12-12 | 2019-04-05 | 中冶焦耐(大连)工程技术有限公司 | A kind of high temperature vertical kiln discharging device |
| CN113649130A (en) * | 2021-08-19 | 2021-11-16 | 徐州莫大新材料科技有限公司 | Degradable polymer water-absorbing resin material grinding device |
| CN115025855A (en) * | 2022-06-23 | 2022-09-09 | 广东众大智能科技有限公司 | Graphite grinder |
-
1998
- 1998-08-03 CN CN 98229225 patent/CN2333442Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364669C (en) * | 2006-01-24 | 2008-01-30 | 庞德明 | Compound type regrind mill |
| CN102814215A (en) * | 2012-08-09 | 2012-12-12 | 常州市亚邦亚宇助剂有限公司 | High-efficiency disc-type sanding device |
| CN103341384A (en) * | 2013-07-14 | 2013-10-09 | 唐新民 | Ultrafine grinder for high hardness material |
| CN104437747A (en) * | 2014-10-16 | 2015-03-25 | 贵州良济药业有限公司 | Traditional Chinese medicine raw material powder preparing device |
| CN104324795A (en) * | 2014-10-28 | 2015-02-04 | 无锡快邦医疗科技有限公司 | Medical crushing unit |
| CN109579509A (en) * | 2018-12-12 | 2019-04-05 | 中冶焦耐(大连)工程技术有限公司 | A kind of high temperature vertical kiln discharging device |
| CN113649130A (en) * | 2021-08-19 | 2021-11-16 | 徐州莫大新材料科技有限公司 | Degradable polymer water-absorbing resin material grinding device |
| CN115025855A (en) * | 2022-06-23 | 2022-09-09 | 广东众大智能科技有限公司 | Graphite grinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |