CN1781616A - External circulation needle wheel rotor powder sorter - Google Patents
External circulation needle wheel rotor powder sorter Download PDFInfo
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- CN1781616A CN1781616A CN 200510089271 CN200510089271A CN1781616A CN 1781616 A CN1781616 A CN 1781616A CN 200510089271 CN200510089271 CN 200510089271 CN 200510089271 A CN200510089271 A CN 200510089271A CN 1781616 A CN1781616 A CN 1781616A
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Abstract
The present invention relates to externally circular needle wheel rotor powder sorter, and relates to cyclonic powder sorter as a chemical machine. The needle wheel rotor powder sorter contains dispersing needle wheel, sorting needle wheel, and fine material collector, which comprises separating needle wheel, material guide unit and conic rotation assisting stage. The needle wheel rotor powder sorter has low speed needle wheels for feeding material and sorting fine powder and high speed needle wheel for recovering fine powder. Each of the needle wheels has densely and homogeneously distributed radial needle teeth and is high in dynamic balance performance, so that the present invention has stereo dispersion of material, horizontal sorting of fine powder, efficient recovering of fine powder, high powder sorting efficiency and low total power consumption. The present invention may be used for dispersing and grading powdered material in different fields.
Description
One, technical field
The invention belongs to chemical industry powder technology field of mechanical technique, relate to powder dispersion, classification, recovery system.
Two, background technology
Cyclone type powder sorting machine contains spreading device, impeller sorting rotor, separates the cyclone of fines.
When removing the charging tray rotation, the former powder that generally distributes in ring dish week definitely equably, material many by the chance of throwing out with becoming piece, and is influential to the fines sorting index.
Because the vortes interference that blade forms, powder concentrator can not be controlled the sorting fineness fully in the practice, and normal generation is run thick.
In selecting powder system, adopt the cyclone rewinding that two shortcomings are arranged.
At first, cyclone can only reach 90% to the fines best result from efficient, the poor ability of the following fine powder of recovery 0.015mm.Cause the feed back amount to improve, grinding efficiency is reduced to below 85%.The relief tube that is provided with before circulating fan is also discharged large-tonnage product, constitutes serious environmental and pollutes.Secondly, the cyclone resistance is about 800～900Pa.Make the blast demand of circulating fan reach the level of 2000～3000Pa.
Three, summary of the invention
The objective of the invention is to propose the external circulation needle wheel rotor powder sorter of a kind of high rewinding rate, low system energy consumption, high grinding efficiency.
Technical scheme:
Technical solution of the present invention is a kind of external circulation needle wheel rotor powder sorter, is used for powder dispersion, sorting and the rewinding of building materials, chemical industry, light industry, pigment industry.It comprises spreading device, sorting rotor, sorting driving 1, sorting chamber 5, dropping system 6, meal bucket 8, meal discharge line, meal collection mouth 10, fine powder bucket 9, fines collection mouth 11, spout 23, feed hopper 2, air inlet 7, fine powder discharge gate 22 and at least one fine powder material collecting device.Sorting drives 1 and connects spreading device and sorting rotor.The spreading device is following, and the sorting rotor is last, and axle is the cantilevered support rotor.Feeding or be to drive 1 bearing housing male-tapered or other irregular shape feed hopper 2 passage or the pipeline that is connected two wheel hubs on rotor hub from sorting to arrive and remove glassware; Be directly to insert from sidewall slope to arrive the spreading device with hopper.Sorting chamber 5 is garden tubular or other combination shape, with rotor certain axiality is arranged.Dropping system 6 has certain axiality for inversed conical drum forms through the folded buttress of fixed component with a determining deviation with rotor.Tangential air intake, 6 sections of air intake position and dropping systems are suitable.Tap into the wind member on the meal bucket 8, have in the bucket with rotor and hang with certain axiality, awl tube 12 is revolved in awl mouthful unlimited downwards fixing helping.Connect the fine powder material collecting device successively from each fine powder discharge gate 22.The fines that the fine powder material collecting device is collected can import same fine powder bucket 9, also can converge nearby respectively, and secondary converges collection again.
This powder concentrator is characterised in that:
(1) structural shape of at least one member is a pinwheel in spreading device, the sorting rotor.Pinwheel by U font pin seedling radially evenly dense arrangement hang on the garden locating ring, the locating ring that hangs up properly the pin seedling adds upper isolating ring, be individual layer or mutually the branch multilayer repeatedly put, be combined on the wheel hub through key bar, pressing plate, circlip or other spacing member and form.Pin seedling cross section is circular.Disperse pinwheel 4 hub diameters less than sorting pinwheel 3.
(2) said fine powder material collecting device is a kind of high speed needle rotor centrifuge, contains and separates pinwheel 18, separation driving 20, housing 14, receives and expect member 17, the member 19 of giving vent to anger, cloth drop guide 15, exhaust outlet 21.Separate and drive 20 connections, one component from pinwheel 18.Axle is cantilevered and hangs rotor.Housing 14 is placed in the middle, for garden cylindricality, taper, other combined shaped one of them.The material member 17 of receiving is off-centre and is just paying the material pattern.
Connect a dish on the material-falling hopper 13, have the hole or the groove that are communicated with upper chamber respectively on the dish.
It is different that the connected mode of all the other each parts is looked the axial relativeness of the flow direction of air-flow and housing 14, and high speed needle rotor centrifuge is divided into air draft turn back streaming needle rotor centrifuge and two kinds in following air draft axial-flow type needle rotor centrifuge.
For the streaming needle rotor centrifuge of turning back, the member 19 of giving vent to anger is positioned at receives the top of material member 17, separate to drive 20 and passes through mutually with the member of giving vent to anger, and exhaust outlet 21 is tangentially or orthogonal manner.The central area can be settled to help with certain axiality and be revolved frustum 16 with rotor on material-falling hopper 13, and top mouthful opening and closing all can.
For axial-flow type needle rotor centrifuge, the member 19 of giving vent to anger passes through mutually with the blanking member, and exhaust outlet 21 is elbow draws, and can settle aerodynamic force separator 24 with certain axiality with rotor on the member 19 of giving vent to anger.Aerodynamic force separator 24 is taper, and cone angle opens wide towards outlet or towards the blanking direction, and porose or groove on the awl wall can be local or all be coated with filter screen.
Relatively being characterized as of three kinds of rotors in this powder concentrator: the diameter maximum of sorting pinwheel 3, pin seedling are the thickest, and rotating speed is less than 600r/min.Separation pinwheel 18 diameters are less, the pin seedling is thinner, and the rotating speed of pin seedling is greater than 1000r/min.Disperse the diameter of pinwheel 4 less, the pin seedling can be coarse to fine.
Beneficial effect:
1, the improvement of external circulation needle wheel rotor powder sorter aspect divergent function
Spreading disk be the plane overcome the friction throw out.Pinwheel pin seedling is broken up multi-level impact of material, and the preliminary sorting of can let in air simultaneously of pin seedling gap has the effect of three-dimensional dispersion, and the pinwheel spreading is not lumpd.Pinwheel is all more superior than propeller shape spreading disk as spreading device dispersing mode.
2, the improvement of external circulation needle wheel rotor powder sorter aspect grading function
The pin seedling can be swung, and is flexible superior.The pinwheel the moment of inertia is littler than impeller, so pinwheel startup load is little.Under with the classification performance parameter, the configuration load of needle wheel rotor powder sorter can reduce more than 1/5th than blade powder concentrator.
Tradition powder concentrator blade is mainly to improve with the probability of coarse granule collision by thickness.After the blade collision coarse granule, particle obtains the ratio of horizontal velocity near 1.Blade quantity, wheel speed are insensitive to the influence of classification.The classification principle of needle wheel rotor powder sorter pinwheel then is different from vane rotor, and also there were significant differences with cage rotor.
The pin seedling radially.The angular speed that rotation forms is monolithic.At all any positions of ring, it is identical that the pin seedling collides coarse grained probability.After the pin seedling collision coarse granule, particle obtains the ratio maximum of oblique downward speed.Pin seedling ring week distributes closely, and pin seedling spacing is little.Suitably rotation, one deck pin seedling is exactly a dynamic filtration net, can hold back coarse granule.
In theory, the probability that sees through of particle and pin seedling diameter, all pin seedling distribution densities of ring, angular speed, the pin seedling number of plies, granular size, the particle quadrature speed that sees through pinwheel with the mathematical analysis relation is arranged.Total is power time relation through the probability and the pin seedling number of plies.The granular size that allows in other words to see through can accurately be controlled.
Say further, under the condition of same penetration speed, same target Cut size, can improve pin seedling ring week distribution density, significantly reduce the pin seedling number of plies, or reduce rotating speed, improve rotor stability so that reduce motor load.Under same target Cut size, same load, can increase the pin seedling number of plies, improve penetration speed, perhaps dwindle root diameter, improve rotating speed, dwindle the powder concentrator cavity diameter.
In addition, the centrifugal field uniformity that the rotation of pin seedling forms is strong, and eddy current is few and little, and the centrifugal classification effect that particle stands is very regular.As long as housing 14 garden degree and axiality have certain guarantee, just can thoroughly eliminate and run thick possibility.
So pinwheel can make the thickness flattening more of classification, the powder product quality improves, and also realizes that for real the classification of manually-operated control particle provides very big choice.
3, the improvement of external circulation needle wheel rotor powder sorter aspect separation function
(1) the pinwheel dynamic balancing realizes and the grade height easily naturally
The pin seedling of hinged constraint axially also is being easy to set, evenly is being connected in series in the evenly distributed layout of hoop energy, and after rotation was got up, the pin seedling leaned on the centrifugal force oneself to seek the equilbrium position, so the natural satisfaction degree of the dynamic balancing of pinwheel integral body is than higher.The simplified processing technology of pinwheel only needs assembling to get final product, and does not need static balance, dynamic balance running link, simultaneously, keeps in repair also judicial convenience.
(2) high speed centrifugation separates
Pinwheel about diameter 400mm is when rotating speed reaches 3000r/min, and the pressure centrifugal field that high speed rotating forms can be separated the particle more than 2～4 microns fully.
(3) the centrifugal force component is strengthened discharging
(4) aerodynamic force separator 24 prevents short circuit or runs material
Taper aerodynamic force separator 24 is the orchestration boundary influence near the gas outlet, and the direction obtuse angle that particle centrifugal force and air-flow see through intersects, and the zone that the particle enrichment degree is high has filter screen auxiliary, avoids the large scale eddy current to generate.
(5) separative efficiency height
The best result of cyclone can only reach 92% from efficient, reclaims the poor ability of fine powder below 2～15 microns.Cause the material separation that circulates in system, simultaneously, if the relief pipe behind blower fan is then discharged large-tonnage product open, constitutes severe contamination.
Efficient when the needle rotor centrifuge is used for rewinding separately can reach more than 98%.The recovery of fine powder is significantly strengthened, and material cycling rate separation rate in system reduces.
4, other beneficial effect of external circulation needle wheel rotor powder sorter
(1) little, the energy consumption of resistance significantly reduces
The cyclone resistance is about 900Pa.The datum drag of cyclone type powder sorting machine is at 1500～2000Pa.
Resistance is about 100～600Pa when replacing cyclone to come rewinding with the needle rotor centrifuge separately.No longer include the such resistance component of spreading disk in the powder concentrator of the present invention, almost the zone except that wheel hub can disperse the resistance of pinwheel 4 to reduce by holding the powder air-flow under the arm.Generally, one overlaps the level that its datum drag of needle wheel rotor powder sorter with good fines collection ability can be controlled at 600～1500Pa.Though needle wheel rotor powder sorter has increased new load, the motor load of circulating fan reduces about half, and the two offsets, and total energy consumption still reduces.
(2) grinding efficiency
Generally in 45～60% level, best powder concentrator can reach 85% to the grinding efficiency of powder concentrator.
Needle wheel rotor powder sorter significantly improves because of principle, the performance of dispersion, classification, separation, and grinding efficiency can significantly improve, and reaches more than 90%.
(3) select powder speed that bigger raising space is arranged
The pin seedling number of plies suitably increases, and selects powder speed can be brought up to the level of 6m/s by the level of general now 3m/s in the chamber.Correspondingly air-flow is held the powder ability under the arm and is expected to reach 1kg/m
3More than.
(4) stable
The startup of pinwheel and rotatable dynamic balance performance increase significantly than impeller, cage rotor.In the running wearing and tearing of pin seedling from table and in progressively and evenly development.Wearing and tearing do not influence the pinwheel dynamic balancing.The mechanical noise that the pinwheel high speed rotary causes also significantly reduces.The pin seedling will be opened from the position ring that is scattered naturally week radiation cloth in start-up course, equals to stand the shake effect, so but on the pin seedling adhered materials limited.The pin seedling can be changed, so prolong the service life of powder concentrator.
Four, description of drawings
Shown in Figure 1 is the turn back structure of stream separator needle wheel rotor powder sorter of air draft in a kind of outer circulation.
Shown in Figure 2 is the structure of air draft axial flow separator needle wheel rotor powder sorter under a kind of outer circulation.
The corresponding member of each numbering is among the figure:
The 1-sorting drives, the 2-feed hopper, and 3-sorting pinwheel, 4-disperses pinwheel, the 5-sorting chamber, 6-dropping system, 7-air inlet, 8-meal bucket, 9-fine powder bucket, the 10-meal is collected mouth, and 11-fines collection mouth, 12-help and revolve the awl tube, the 13-material-falling hopper, the 14-housing, 15-cloth cloth drop guide, 16-helps and revolves frustum, 17-receives the material member, and 18-separates pinwheel, the 19-member of giving vent to anger, and 20-separates driving, the 21-exhaust outlet, 22-fine powder discharge gate, 23-spout, 24-aerodynamic force separator.
Five, the specific embodiment
Embodiment one:
Referring to Fig. 1, present embodiment is the air draft stream separator needle wheel rotor powder sorter of turning back in a kind of outer circulation.It comprises dispersion pinwheel 4, sorting pinwheel 3, sorting driving 1, sorting chamber 5, dropping system 6, meal bucket 8, meal discharge line, meal collection mouth 10, fine powder bucket 9, fines collection mouth 11, spout 23, feed hopper 2, air inlet 7, fine powder discharge gate 22 and fine powder material collecting device.There is support to assist sorting chamber 5 cover plate rigidity.Feeding from sorting drive passage on rotor hub of 1 bearing housing male-tapered or other irregular shape feed hopper 2, the pipeline that is connected two wheel hubs arrives and disperses pinwheel 4.Disperse pinwheel 4 following, sorting pinwheel 3 is last, and the two all is connected on the same power transmission shaft.Be to be back taper under the tubular of garden on the sorting chamber 5, roughly coaxial with rotor.Dropping system 6 forms through the folded buttress of fixed component with a determining deviation for inversed conical drum, roughly with rotor coaxial.Tangential air intake, 6 sections of air intake position and dropping systems are suitable.Tap into the wind member on the meal bucket 8, roughly hanged awl mouthful unlimited fixing helping downwards in the bucket and revolved awl tube 12 with rotor coaxial.Connect six fine powder material collecting devices successively from a plurality of fine powder discharge gates 22.The fines that the fine powder blanking port is collected imports same fine powder bucket 9.
Six fine powder discharge gates that are connected with fine powder discharge gate 22 are a kind of air draft stream needle rotor centrifuge of turning back of going up.This centrifuge contains a cover and separate to drive 20, one component and help from pinwheel 18, a cover cloth drop guide 15 and one and revolve frustum 16.Tangential manner is received material, and the streaming of upwards turning back is given vent to anger.Separation driving 20, the member 19 of giving vent to anger are positioned at top, and both pass through mutually.Exhaust outlet 21 is tangential manner.
Cloth drop guide 15 is a conically shaped, top wind inlet section perforate.Cloth drop guide 15 and the coaxial arrangement of pinwheel, and between the housing 14 certain interval is arranged, be fixed on the shell by hanging the angle.Connect a ring flange with the groove that is communicated with upper chamber respectively on the material-falling hopper 13.Help and revolve frustum 16 and be fixed on the ring flange with the coaxial arrangement of pinwheel.Help and revolve frustum 16 and be taper, cone angle opens wide towards outlet, and porose on the awl wall, the bottom is coated with filter screen.
Embodiment two:
Referring to Fig. 2, present embodiment is an air draft axial flow separator needle wheel rotor powder sorter under a kind of outer circulation.They are different with embodiment one, and to be the fines collection device be air draft axial-flow type needle rotor centrifuge down.
This centrifuge contains a cover and separates 20, one groups of pinwheels of driving, a cover cloth drop guide 15 and an aerodynamic force separator 24.The tangential manner air intake.Separate driving 20 and be positioned at centrifuge top, the member 19 of giving vent to anger is positioned at the bottom, and both pass through mutually with the blanking member.Cloth drop guide 15 is the combination of last circular cylinder inferior pyramidal tube, the cylindrical section perforate.Cloth drop guide 15 and the coaxial arrangement of pinwheel, and between the shell body 14 certain interval is arranged, be fixed on the housing 14 by hanging the angle.Be one to have the dish of the groove that is communicated with upper chamber respectively on the material-falling hopper 13.Aerodynamic force separator 24 is fixed on material-falling hopper 13 ring flanges with the coaxial arrangement of pinwheel.Aerodynamic force separator 24 is taper, places the bottom cone angle to open wide towards outlet, and porose or groove on the awl wall is local or all be coated with filter screen.Exhaust outlet 21 is elbow and draws.
Claims (1)
1, a kind of external circulation needle wheel rotor powder sorter is used for powder dispersion, sorting and the rewinding of building materials, chemical industry, light industry, pigment industry.It comprises that spreading device, sorting rotor, sorting drive [1], sorting chamber [5], dropping system [6], meal bucket [8], meal discharge line, meal collection mouthful [10], a fine powder bucket [9], fines collection mouth [11], spout [23], feed hopper [2], air inlet [7], fine powder discharge gate [22] and at least one fine powder material collecting device.Sorting drives [1] and connects spreading device and sorting rotor.The spreading device is following, and the sorting rotor is last, and axle is the cantilevered support rotor.Feeding otherwise be from sorting drive [1] bearing housing male-tapered or other irregular shape feed hopper [2] on rotor hub passage or the pipeline that is connected two wheel hubs arrive the spreading device; Be directly to insert from sidewall slope to arrive the spreading device with hopper.Sorting chamber [5] is garden tubular or other combination shape, with rotor certain axiality is arranged.Dropping system [6] has certain axiality for inversed conical drum forms through the folded buttress of fixed component with a determining deviation with rotor.Tangential air intake, air intake position and dropping system [6] section quite.The meal bucket taps into the wind member on [8], has in the bucket to have hanged awl with rotor with certain axiality and mouthful open wide downwards fixing helping and revolve awl tube [12].Connect the fine powder material collecting device successively from each fine powder discharge gate [22].The fines that the fine powder material collecting device is collected can import same fine powder bucket [9], also can converge nearby respectively, and secondary converges collection again.
This powder concentrator is characterised in that:
(1) structural shape of at least one member is a pinwheel in spreading device, the sorting rotor.Pinwheel by U font pin seedling radially evenly dense arrangement hang on the garden locating ring, the locating ring that hangs up properly the pin seedling adds upper isolating ring, be individual layer or mutually the branch multilayer repeatedly put, be combined on the wheel hub through key bar, pressing plate, circlip or other spacing member and form.Pin seedling cross section is circular.Disperse pinwheel [4] hub diameter less than sorting pinwheel [3].
(2) said fine powder material collecting device is a kind of high speed needle rotor centrifuge, contains and separates pinwheel [18], separates driving [20], housing [14], receives and expect member [17], the member of giving vent to anger [19], cloth drop guide [15], exhaust outlet [21].Separate and drive [20] connection one component from pinwheel [18].Axle is cantilevered and hangs rotor.Housing [14] is placed in the middle, for garden cylindricality, taper, other combined shaped one of them.The material member [17] of receiving is off-centre and is just paying the material pattern.
Cloth drop guide [15] be conically shaped, conically shaped combination, conically shaped and circular cylinder combination one of them, with the coaxial arrangement of pinwheel, and between the housing [14] certain interval is arranged, be fixed on the adjacent component by hanging angle [14] or other member.The section perforate of the corresponding air intake in cloth drop guide [15] top.Can and receive and stay certain interval between material member [17] loam cake.
Material-falling hopper connects a dish on [13], has the hole or the groove that are communicated with upper chamber respectively on the dish.
The axial relativeness of the flow direction that the connected mode of all the other each parts is looked air-flow and housing [14] is different, is divided into air draft turn back streaming needle rotor centrifuge and two kinds in following air draft axial-flow type needle rotor centrifuge.
For the streaming needle rotor centrifuge of turning back, the member of giving vent to anger [19] is positioned at receives the top of material member [17], separate to drive [20] and passes through mutually with the member of giving vent to anger, and exhaust outlet [21] is tangentially or orthogonal manner.The central area can be settled to help with certain axiality and be revolved frustum [16] with rotor on material-falling hopper [13], and top mouthful opening and closing all can.
For axial-flow type needle rotor centrifuge, the member of giving vent to anger [19] passes through mutually with the blanking member, and exhaust outlet [21] is elbow draws, and can settle aerodynamic force separator [24] with certain axiality with rotor on the member of giving vent to anger [19].Aerodynamic force separator [24] is taper, and cone angle opens wide towards outlet or towards the blanking direction, and porose or groove on the awl wall can be local or all be coated with filter screen.
In three kinds of rotors, diameter maximum, the pin seedling of sorting pinwheel [3] are the thickest, and rotating speed is less than 600r/min.Separation pinwheel [18] diameter is less, the pin seedling is thinner, and the rotating speed of pin seedling is greater than 1000r/min.Disperse the diameter of pinwheel [4] less, the pin seedling can be coarse to fine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510089271 CN1781616A (en) | 2003-11-25 | 2003-11-25 | External circulation needle wheel rotor powder sorter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510089271 CN1781616A (en) | 2003-11-25 | 2003-11-25 | External circulation needle wheel rotor powder sorter |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101151706A Division CN1544160A (en) | 2003-11-25 | 2003-11-25 | Pin wheel rotor powder concentrator |
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|---|---|
| CN1781616A true CN1781616A (en) | 2006-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510089271 Pending CN1781616A (en) | 2003-11-25 | 2003-11-25 | External circulation needle wheel rotor powder sorter |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817000A (en) * | 2010-04-13 | 2010-09-01 | 新乡市高服筛分机械有限公司 | Centrifugal sieving machine |
| CN103008240A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separator and wind power separation system |
| CN103008239A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separator and wind power separation system |
| CN103008241A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separator and wind power separation system |
| CN103008237A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Wind power sorting system |
| CN103008238A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separating machine and wind power sorting system |
| CN103056107A (en) * | 2012-12-20 | 2013-04-24 | 长沙中联重科环卫机械有限公司 | Separator and wind-force sorting system |
| CN105057123A (en) * | 2015-07-27 | 2015-11-18 | 中建材（合肥）粉体科技装备有限公司 | Tower skirt type dry powder material classifier |
| CN108745571A (en) * | 2018-06-22 | 2018-11-06 | 南京西普水泥工程集团有限公司 | A kind of material dispersing device |
| CN112604972A (en) * | 2020-12-22 | 2021-04-06 | 山东利鑫新材料集团有限公司 | Raw materials screening plant is used in production of ready-mixed mortar |
| CN113477525A (en) * | 2021-07-20 | 2021-10-08 | 天津水泥工业设计研究院有限公司 | Design method of semi-finished product thickness separation powder concentrator with material blocking cone |
-
2003
- 2003-11-25 CN CN 200510089271 patent/CN1781616A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817000A (en) * | 2010-04-13 | 2010-09-01 | 新乡市高服筛分机械有限公司 | Centrifugal sieving machine |
| CN103056107B (en) * | 2012-12-20 | 2015-11-18 | 长沙中联重科环卫机械有限公司 | Seperator and wind sorting system |
| CN103008239B (en) * | 2012-12-20 | 2016-02-10 | 长沙中联重科环卫机械有限公司 | Seperator and wind sorting system |
| CN103008241A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separator and wind power separation system |
| CN103008237A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Wind power sorting system |
| CN103008238A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separating machine and wind power sorting system |
| CN103056107A (en) * | 2012-12-20 | 2013-04-24 | 长沙中联重科环卫机械有限公司 | Separator and wind-force sorting system |
| CN103008239A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separator and wind power separation system |
| CN103008240B (en) * | 2012-12-20 | 2016-03-02 | 长沙中联重科环卫机械有限公司 | Seperator and wind sorting system |
| CN103008237B (en) * | 2012-12-20 | 2014-10-01 | 长沙中联重科环卫机械有限公司 | Wind power sorting system |
| CN103008241B (en) * | 2012-12-20 | 2015-11-25 | 长沙中联重科环卫机械有限公司 | Seperator and wind sorting system |
| CN103008240A (en) * | 2012-12-20 | 2013-04-03 | 长沙中联重科环卫机械有限公司 | Separator and wind power separation system |
| CN105057123A (en) * | 2015-07-27 | 2015-11-18 | 中建材（合肥）粉体科技装备有限公司 | Tower skirt type dry powder material classifier |
| CN108745571A (en) * | 2018-06-22 | 2018-11-06 | 南京西普水泥工程集团有限公司 | A kind of material dispersing device |
| CN112604972A (en) * | 2020-12-22 | 2021-04-06 | 山东利鑫新材料集团有限公司 | Raw materials screening plant is used in production of ready-mixed mortar |
| CN113477525A (en) * | 2021-07-20 | 2021-10-08 | 天津水泥工业设计研究院有限公司 | Design method of semi-finished product thickness separation powder concentrator with material blocking cone |
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