CN1709578A - Open-flow powder mill - Google Patents
Open-flow powder mill Download PDFInfo
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- CN1709578A CN1709578A CNA2005100190204A CN200510019020A CN1709578A CN 1709578 A CN1709578 A CN 1709578A CN A2005100190204 A CNA2005100190204 A CN A2005100190204A CN 200510019020 A CN200510019020 A CN 200510019020A CN 1709578 A CN1709578 A CN 1709578A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
This invention belongs to the power engineering, referring to cement and mineral sophistication production equipment. It includes revolving canister(8),front axletree seat(7),back axletree seat(10).The front of (8) is connected to (7) by axletree, the back to (10).There are feed-in meatus (1) and feed-out meatus (6) in (8).The character is that in (8) there are 1-3 picking power equipments. This invention integrates levigation and picking to increase output, reduce energy sourse, decrease expenditure. Comparing with the same scale equipment, its output increases by more than 20% and the consumption of electricity decreases by more than 30%.
Description
Technical field
The invention belongs to field of powder engineering, be specifically related to the grinding production equipment of cement and mineral admixture.
Background technology
At present, the grinding system of the cement of China's on-line operation and mineral admixture (slag powders, slag breeze, zeolite powder etc.) is divided into out stream mill and circle stream mill two big systems.Drive stream mill vial grinding machine and be not with and select powder system, by the partition panel of various types is set, carry out the branch storehouse in grinding machine, the rotating speed of the useful load by adjusting abrasive body, grating, grinding machine and air quantity, wind speed are controlled grinding machine production.It then is to increase the external powder system that selects of a cover on the basis of driving the stream mill that circle stream grinds, and sends into powder concentrator by powder throughput in the increase grinding machine and with material, and coarse fodder returns mill, and the mode of accept warehouse-in was effectively avoided the grinding phenomenon, improved grinding efficiency.
Open the following defective that exists of stream mill:
The a particle size is bad to be taken into account, and the control particle size is too little, and the powder that the ball storehouse is detained is too many, influences the breaking capacity of preceding storehouse ball; Particle size is too big, forges the ability in storehouse and can not normally bring into play again, has a strong impact on mill output and quality.
B uses traditional partition panel in preceding storehouse, and it is difficult to guarantee the balance of each bin ability, and individual layer partition panel conveyance capacity is often not enough, and the double-layered isolating plate conveyance capacity is superfluous again; Make each storehouse raw meal particle size and abrasive body size not be complementary; Grinding body gradation scheme that can not designing optimal.
C. the steel section number of plies on the cross section of section storehouse is more, especially after adopting small dimension steel section, the steel section number of plies is more, and the steel section layer far away from the shell liner surface forms " stagnant area " because of movement degree is faint, and the existence of " stagnant area " is having a strong impact on the mill efficiency of grinding machine.
Therefore, the mill efficiency of driving the stream mill is low, the energy consumption height; And circle stream mill need increase equipment such as elevator, powder concentrator, conveyer on the basis of driving the stream mill, equipment, construction investment and maintenance of equipment expense have been increased, system complex and energy consumption height, and the grating of the cement that goes out of grinding and mineral admixture is bad, influences cement intensity.At present, along with the enforcement of national iso standard, each producer is all in fineness and the reasonable fineness grating of making great efforts to improve cement and mineral admixture, to improve hydration activity and intensity.Therefore the output reduction in various degree of grinding machine, specific energy consumption increases, and breaks the balance of former kiln grinding system production capacity, causes economic benefit of enterprises to reduce.
Summary of the invention
The present invention is directed to the defective that exists on the present tube mill, a kind of open-flow powder mill is provided, it is not changing out the technological process of stream mill, is not additionally increasing under the condition of power, opening the powder selection device that is provided with that flows in the mill, make the interior grinding of mill and select powder integrated, improve mill efficiency and output, cut down the consumption of energy.
Open-flow powder mill, it comprises rotary barrel 8, front-end bearing pedestal 7, rear bearing block 10, the front end of rotary barrel 8 (bistrique) is connected with front-end bearing pedestal 7 by bearing, and the tail end of rotary barrel 8 is connected with rear bearing block 10 by bearing, and rotary barrel 8 is provided with charging aperture 1, discharging opening 6; It is characterized in that: be fixed with 1-3 powder selection device in the rotary barrel 8,
Described powder selection device comprises that branch hopper 11, rotary screen 19, wheel are with 25, charging grate plate 26, air-distribution device, discharging grate plate 22, divide hopper 11 middle parts to be provided with first air vent 17, divide and interlacedly in the hopper 11 to be provided with the material bin 14 that advances, to return material bin 15, the lateral wall at material bin 14 places that advance of branch hopper 11 is provided with the material that advances and enters hole 13, divide the back plate at material bin 14 places that advance of hopper 11 to be provided with the material outlet 12 that advances, the material that advances enters hole 13, the material outlet 12 that advances communicates with the material bin 14 that advances respectively; Divide the lateral wall that returns material bin 15 places of hopper 11 to be provided with to return material and enter hole 16, divide the header board that returns material bin 15 places of hopper 11 to be provided with and return material outlet 18, return material enter hole 16, return material outlet 18 respectively with return material bin 15 and communicate; Rotary screen 19 embayment knife-edges, in the rotary screen 19 is cavity, the tulwar point of rotary screen 19 is a closed, it at the bottom of the tulwar of rotary screen 19 opening, big or small corresponding on the lateral wall at the size at the bottom of the tulwar of rotary screen 19 and material bin 14 places that advance that divide hopper 11 also is mutually permanently connected, the material bin 14 that advances enters hole 13 with the cavity of rotary screen 19 by the material that advances and is communicated with, and wall is provided with sieve aperture 20 around the rotary screen 19, and sieve aperture 20 communicates with the cavity of rotary screen 19; Wheel is fixedlyed connected with the tulwar point of rotary screen 19 with 25 inboard, takes turns correspondingly with the internal diameter of rotary barrel 8 with 25 external diameter, takes turns and to be with 25 to fixedly connected with rotary barrel 8; Air-distribution device is positioned at the inboard of discharging grate plate 22, air-distribution device mainly is made of air distribution plate 39, eddy current whirlwind lifting bar 21, eddy current whirlwind lifting bar 21 is that arc is bucket-shaped, air distribution plate 39 is fan-shaped, be evenly distributed with circular hole 40 on the air distribution plate 39, eddy current whirlwind lifting bar 21 is welded on the air distribution plate 39, and air distribution plate 39 is provided with bolt hole 41; Discharging grate plate 22 is positioned at a side of the material outlet 12 that advances, charging grate plate 26 is positioned at a side of returning material outlet 18, have screw on discharging grate plate 22, the charging grate plate 26, it is fixedly connected that discharging grate plate 22, air distribution plate 39, charging grate plate 26 pass screw on the discharging grate plate 22, the bolt hole 41 on the air distribution plate 39, screw on the charging grate plate 26 by bolt 24, charging grate plate 26 is provided with charging comb seam, discharging grate plate 22 is provided with discharging comb seam 23, and charging grate plate 26 is towards the front end of rotary barrel 8.
The present invention adopts that branch hopper 11, rotary screen 19, wheel are with 25, charging grate plate 26, air-distribution device, discharging grate plate 22, material after the pulverizing enters from seam is combed in the charging of charging grate plate 26, thin material enters in the cavity of rotary screen 19 from the sieve aperture 20 on the wall all around of rotary screen 19, enter hole 13 by the material that advances then and enter in the material bin 14 that advances, and enter next storehouse from the material outlet 12 that advances; Thick material enters hole 16 and enters and return the material bin 15 from returning material, and returns by returning material outlet 18; Make material qualified in the storehouse smoothly by air distribution plate and discharging grate plate, enter next storehouse, the material that wherein satisfies the finished product granularity requirements directly is chosen as the finished product warehouse-in; Avoid grinding, improved mill efficiency.
The thickness of the air distribution plate 39 of described air-distribution device is 4mm, the area of circular hole 40 is the 20%-35% of the area of air distribution plate 39, the diameter in the hole on the air distribution plate in rotary barrel 8 between first storehouse and second storehouse is 4-8mm, and the diameter in hole is 1.0-3.5mm on the air distribution plate between second storehouse and the 3rd storehouse; The height of eddy current whirlwind lifting bar 21 is 10-15mm, and the thickness of eddy current whirlwind lifting bar 21 is 3-4mm.Air-distribution device plays kicks up the material that is between charging grate plate and the discharging grate plate, and make it form eddy current, even effect by air distribution plate and discharging grate plate by wind, make material qualified in the storehouse smoothly by air distribution plate and discharging grate plate, enter next storehouse, the material that wherein satisfies the finished product granularity requirements directly is chosen as the finished product warehouse-in.Air-distribution device is attached to the inboard of discharging grate plate, plays the effect of wind speed, air quantity in the control mill, makes in the mill air quantity even, and the cement of granularity requirements and mineral admixture are selected walks thereby quicken to reach, and avoid grinding.
The seam of the charging comb seam on the described charging grate plate 26 is wide to be 7-18mm, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 1.5-10.0mm, the Kong Kuanwei 1.5-9.0mm of the sieve aperture 20 on the rotary screen 19, and the diameter of the circular hole 40 on the air distribution plate 39 is 1.0-8.0mm.
Described powder selection device is 2, and first powder selection device 2 is positioned at front end (bistrique) the 2000-3000mm place of rotary barrel 8, and charging grate plate 26 is a 10-20 spare, and the seam of charging comb seam is wide to be 14-18mm; Rotary screen 19 is a 8-10 spare, the Kong Kuanwei 5-9mm of the sieve aperture 20 on the rotary screen 19; Dividing hopper 11 is 1, and dividing hopper 11 diameters is 800-1100mm; Discharging grate plate 22 is a 10-20 spare, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 6-10mm; Eddy current whirlwind lifting bar 21 is a 8-11 spare;
Second powder selection device 3 is positioned at front end (bistrique) the 3500-5500mm place of rotary barrel 8, and charging grate plate 26 is a 20-24 spare, and the seam of charging comb seam is wide to be 7-10mm; Rotary screen 19 is a 10-15 spare, the Kong Kuanwei 1.5-3.5mm of the sieve aperture 20 on the rotary screen 19; Dividing hopper 11 is 1, and dividing hopper 11 diameters is 800-1100mm; Discharging grate plate 22 is a 20-24 spare, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 1.5-6.0mm; Eddy current whirlwind lifting bar is a 8-11 spare.
Be provided with raising material unit 4 in little forging storehouse in the described rotary barrel 8 after last powder selection device, raising material unit 4 mainly is made of base 29, lifting blade 28 two parts, for the door shape cast member of crooked arc is axially arranged along rotary barrel 8, the crooked radian r of lifting blade 28 is the 30-45 degree, lifting blade 28 is provided with lifting hole 27, base 29 is provided with fixing hole 30, and base 29 passes fixing hole 30 by screw fixedlys connected with rotary barrel 8; Every circles are installed four raising material units 4 in the rotary barrel 8, and adjacent two arcs are towards on the contrary, in rotary barrel 8 axially in the shape of a spiral line arrange.
The height of described lifting blade 28 is 300mm-600mm, and thickness is 50-70mm.
Raising material unit quantity is decided according to grinding machine length and grinding material characteristic.On the one hand, raising material unit can improve " stagnant area " from shell liner surface steel section layer far away, can be used for controlling the nowed forming of material in mill on the other hand again, guarantee that material has enough time of staying in mill, thereby material is fully ground, also play material is shed uniformly in grinding machine, making the qualified material 60-80% of granularity (less than 80 μ m) be ground interior equally distributed selection by winnowing walks, become finished product, avoided grinding, improve mill efficiency.
Inboard, discharging opening 6 place in the described rotary barrel 8 is provided with finished product control device 5, finished product control device 5 is mainly by feed back vertebra bucket 33, mill tail sheet plate 34, mill tail discharging grate plate 35, sieve plate frame 38 is formed, the cross section of feed back vertebra bucket 33 be two relative humanoid, two relative humanoid centres are the 3rd air vent 42, the external diameter of sieve plate frame 38 is corresponding with the internal diameter of rotary barrel 8, sieve plate frame 38 is fixedlyed connected with rotary barrel 8, sieve plate frame 38 is provided with cavity groove 44, feed back vertebra bucket 33, mill tail sheet plate 34 is positioned at cavity groove 44, feed back vertebra bucket 33 is positioned at the middle part of mill tail sheet plate 34 and is mutually permanently connected, and mill tail sheet plate 34 is provided with finished product comb seam 45; Mill tail discharging grate plate 35 is provided with the seam 46 of combing, and mill tail discharging grate plate 35 is positioned at mill tail sheet plate 34 outsides, and mill tail discharging grate plate 35 is fixedlyed connected with sieve plate frame 38 by screw rod 36; Be provided with backward channel 31 between feed back vertebra bucket 33 and the mill tail discharging grate plate 35, feed back vertebra bucket 33 is provided with finished product passage 37 with sieve plate frame 38.
The feed back vertebra bucket 33 of described finished product control device 5 is 1, and mill tail sheet plate 34 is a 16-36 spare, and sieve plate frame 38 is a 16-36 spare, and finished product comb seam 45 seams on the mill tail sheet plate 34 are wide to be 2.0mm; Mill tail discharging grate plate 35 is a 16-36 spare, and the seam of the comb seam 46 on the mill tail discharging grate plate 35 is wide to be 6.0mm; The middle part of 16-36 spare sieve plate frame 38 surrounds the 4th air vent 43, and the middle part of 16-36 spare mill tail discharging grate plate 35 surrounds second air vent, 32, the second air vents 32, the 3rd air vent 42, the 4th air vent 43 and communicates.
In order to guarantee out not contain the broken forging equigranular of granule foreign material in mill cement and the mineral admixture finished product, discharging opening 6 places (mill tail) in rotary barrel 8 have set up the finished product control device, the characteristics of this structure are can select powder immediately behind the mill, optimize the flow process of material in mill, avoided the grinding phenomenon, improve mill efficiency, the output of driving the stream mill of the grating of comparable same diameter, length and ball section improves more than 20%, and power consumption reduces by 30%.
The present invention realizes the grinding of tube mill and selects the powder function integration by powder selection device is set in tube mill, simplifies grinding process, reduces civil engineering, equipment investment and maintenance cost, improves the mill efficiency and the quality of grinding machine, energy savings.The present invention compares the output raising more than 20% with the stream grinding machine of opening of same size, and power consumption reduces more than 30%.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the structural representation of of the present invention minute hopper 11
Fig. 3 is the cutaway view of Fig. 2 along the B-B line
Fig. 4 is the structural representation of rotary screen 19 of the present invention
Fig. 5 is the vertical view of Fig. 4
Fig. 6 is the structural representation of air-distribution device of the present invention
Fig. 7 is that the part of powder selection device of the present invention is cutd open structural representation
Fig. 8 is the structural representation behind discharging grate plate 22, the air-distribution device of going of powder selection device of the present invention
Fig. 9 is the right view of powder selection device of the present invention
Figure 10 is the structural representation behind the charging grate plate 26 of going of powder selection device of the present invention
Figure 11 is the structural representation of raising material unit of the present invention
Figure 12 is the left view of Figure 11
Figure 13 is the structural representation of finished product control device of the present invention
Figure 14 is the structural representation of the mill tail discharging grate plate of finished product control device of the present invention
Among the figure: 1-charging aperture, 2-first powder selection device, 3-second powder selection device, 4-raising material unit, 5-finished product control device, 6-discharging opening, 7-front-end bearing pedestal, 8-rotary barrel, the 9-material, the 10-rear bearing block, 11-divides hopper, the 12-material outlet that advances, the 13-material that advances enters the hole, the 14-material bin that advances, and 15-returns material bin, and 16-returns material and enters the hole, 17-first air vent, 18-returns material outlet, the 19-rotary screen, the 20-sieve aperture, 21-eddy current whirlwind lifting bar, 22-discharging grate plate, the 23-discharging is combed and is stitched, the 24-bolt, and 25-takes turns band, 26-charging grate plate, 27-lifting hole, 28-lifting blade, the 29-base, 30-fixing hole, 31-backward channel, 32-second air vent, 33-feed back vertebra bucket, 34-mill tail sheet plate, 35-mill tail discharging grate plate, 36-screw rod, 37-finished product passage, 38-sieve plate frame, 39-air distribution plate, 40-circular hole, the 41-bolt hole, 42-the 3rd air vent, 43-the 4th air vent, 44-cavity groove, the 45-finished product seam of combing, the 46-seam of combing.
The specific embodiment
Example 1: ￠ 2.4 * 8.0m open-flow powder mill:
As shown in Figure 1, it comprises rotary barrel 8, front-end bearing pedestal 7, rear bearing block 10, the front end of rotary barrel 8 (bistrique) is connected with front-end bearing pedestal 7 by bearing, and the tail end of rotary barrel 8 is connected with rear bearing block 10 by bearing, and rotary barrel 8 is provided with charging aperture 1, discharging opening 6; Be fixed with 2 powder selection devices, raising material unit, finished product control device in the rotary barrel 8.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, described powder selection device comprises branch hopper 11, rotary screen 19, wheel is with 25, charging grate plate 26, air-distribution device, discharging grate plate 22, divide hopper 11 middle parts to be provided with first air vent 17, divide the interlaced material bin 14 that advances that is provided with in the hopper 11, return material bin 15, the lateral wall at material bin 14 places that advance of branch hopper 11 is provided with the material that advances and enters hole 13, divide the back plate at material bin 14 places that advance of hopper 11 to be provided with the material outlet 12 that advances, the material that advances enters hole 13, the material outlet 12 that advances communicates with the material bin 14 that advances respectively; Divide the lateral wall that returns material bin 15 places of hopper 11 to be provided with to return material and enter hole 16, divide the header board that returns material bin 15 places of hopper 11 to be provided with and return material outlet 18, return material enter hole 16, return material outlet 18 respectively with return material bin 15 and communicate; Rotary screen 19 embayment knife-edges, in the rotary screen 19 is cavity, the tulwar point of rotary screen 19 is a closed, it at the bottom of the tulwar of rotary screen 19 opening, big or small corresponding on the lateral wall at the size at the bottom of the tulwar of rotary screen 19 and material bin 14 places that advance that divide hopper 11 also is mutually permanently connected, the material bin 14 that advances enters hole 13 with the cavity of rotary screen 19 by the material that advances and is communicated with, and wall is provided with sieve aperture 20 around the rotary screen 19, and sieve aperture 20 communicates with the cavity of rotary screen 19; Wheel is fixedlyed connected with the tulwar point of rotary screen 19 with 25 inboard, takes turns correspondingly with the internal diameter of rotary barrel 8 with 25 external diameter, takes turns and to be with 25 to fixedly connected with rotary barrel 8; Air-distribution device is positioned at the inboard of discharging grate plate 22, air-distribution device mainly is made of air distribution plate 39, eddy current whirlwind lifting bar 21, eddy current whirlwind lifting bar 21 is that arc is bucket-shaped, air distribution plate 39 is fan-shaped, be evenly distributed with circular hole 40 on the air distribution plate 39, eddy current whirlwind lifting bar 21 is welded on the air distribution plate 39, and air distribution plate 39 is provided with bolt hole 41; Discharging grate plate 22 is positioned at a side of the material outlet 12 that advances, charging grate plate 26 is positioned at a side of returning material outlet 18, have screw on discharging grate plate 22, the charging grate plate 26, it is fixedly connected that discharging grate plate 22, air distribution plate 39, charging grate plate 26 pass screw on the discharging grate plate 22, the bolt hole 41 on the air distribution plate 39, screw on the charging grate plate 26 by bolt 24, charging grate plate 26 is provided with charging comb seam, discharging grate plate 22 is provided with discharging comb seam 23, and charging grate plate 26 is towards the front end of rotary barrel 8.
As Figure 11, shown in Figure 12, be provided with raising material unit 4 in little forging storehouse in the described rotary barrel 8 after last powder selection device, raising material unit 4 mainly is made of base 29, lifting blade 28 two parts, for the door shape cast member of crooked arc is axially arranged along rotary barrel 8, the crooked radian r of lifting blade 28 is the 30-45 degree, lifting blade 28 is provided with lifting hole 27, and base 29 is provided with fixing hole 30, and base 29 passes fixing hole 30 by screw fixedlys connected with rotary barrel 8; Every circles are installed four raising material units 4 in the rotary barrel 8, and adjacent two arcs are towards on the contrary, in rotary barrel 8 axially in the shape of a spiral line arrange.
As Figure 13, shown in Figure 14, inboard, discharging opening 6 place in the described rotary barrel 8 is provided with finished product control device 5, finished product control device 5 is mainly by feed back vertebra bucket 33, mill tail sheet plate 34, mill tail discharging grate plate 35, sieve plate frame 38 is formed, the cross section of feed back vertebra bucket 33 be two relative humanoid, two relative humanoid centres are the 3rd air vent 42, the external diameter of sieve plate frame 38 is corresponding with the internal diameter of rotary barrel 8, sieve plate frame 38 is fixedlyed connected with rotary barrel 8, sieve plate frame 38 is provided with cavity groove 44, feed back vertebra bucket 33, mill tail sheet plate 34 is positioned at cavity groove 44, feed back vertebra bucket 33 is positioned at the middle part of mill tail sheet plate 34 and is mutually permanently connected, and mill tail sheet plate 34 is provided with finished product comb seam 45; Mill tail discharging grate plate 35 is provided with the seam 46 of combing, and mill tail discharging grate plate 35 is positioned at mill tail sheet plate 34 outsides, and mill tail discharging grate plate 35 is fixedlyed connected with sieve plate frame 38 by screw rod 36; Be provided with backward channel 31 between feed back vertebra bucket 33 and the mill tail discharging grate plate 35, feed back vertebra bucket 33 is provided with finished product passage 37 with sieve plate frame 38.The middle part that the middle part of 16 sieve plate framves 38 surrounds 43,16 of the 4th air vents mill tail discharging grate plate 35 surrounds second air vent, 32, the second air vents 32, the 3rd air vent 42, the 4th air vent 43 and communicates.
Concrete parameter is as follows:
Divide three storehouses by 2 cover powder selection devices with this grinding machine, the first cover powder selection device is installed in the place apart from bistrique 2000mm,
Charging grate plate 26 is 10, and the seam of charging comb seam is wide to be 14mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 30%, the diameter in hole is 6mm on the air distribution plate, eddy current whirlwind lifting bar 21 is 11, camber, the height of eddy current whirlwind lifting bar 21 is 10mm, the thickness of eddy current whirlwind lifting bar 21 is 4mm;
Discharging grate plate 22 is 16, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 6.8mm;
The grating of the first storehouse ball
| Specification | ????φ90 | φ80 | φ70 | φ60 | φ50 |
| Weight (t) | ????1.0 | 2.5 | 4.0 | 3.0 | 1.5 |
| Ball heavy (t) | ???????????????????????????????????12 | ||||
The second cover powder selection device is installed in the place apart from bistrique 3500mm, and concrete parameter is as follows:
Charging grate plate 26 is 22, and the seam of charging comb seam is wide to be 7mm;
Dividing hopper 11 is l spare, and dividing hopper 11 diameters is 800mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 35%, the diameter in hole is 1.0mm on the air distribution plate, eddy current whirlwind lifting bar 21 is 10, camber, the height of eddy current whirlwind lifting bar 21 is 15mm, thick 3mm;
Discharging grate plate 22 is 22, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 1.5mm;
The grating of the second storehouse ball
| Specification | ????φ50 | ????φ40 | ????φ30 | |
| Weight (t) | ????1.5 | ????4.0 | ????5.5 | |
| Forge heavy (t) | ??????????????????????????????????????11.0 | |||
The grating of the 3rd storehouse section
| Specification | φ10×10 | φ12×12 | φ14×14 | φ16×16 |
| Forge heavy (t) | ????????????????????????????????????????29.0 | |||
The height of lifting blade 28 is 300mm-600mm, and thickness is 50-70mm.
Mill tail finished product control device is installed in the end, and concrete parameter is as follows:
Feed back vertebra bucket 33 is 1,
Mill tail sheet plate 34, sieve plate frame 38: each 16, finished product comb seam 45 seams on the mill tail sheet plate 34 are wide to be 2.0mm;
Mill tail discharging grate plate 35 is: 16, the seam of the comb seam 46 on the mill tail discharging grate plate 35 is wide to be 6.0mm.
Open-flow powder mill and the contrast table of opening stream mill output:
| Project | Unit-hour output (t/h) | System's power consumption (kwh/t) | Fineness | Remarks |
| Closed circuit mill | ????22 | ????34 | ????4 | The closed circuit production of band 4.5 centrifugal powder concentrators |
| Drive the stream mill | ????18 | ????40 | ????4 | |
| Open-flow powder mill | ????28 | ????21 | ????4 |
Example 2: ￠ 2.6 * 13m open-flow powder mill: basic identical with example 1, difference is concrete parameter difference.Concrete parameter is as follows:
Divide three storehouses by 2 cover powder selection devices with this grinding machine, the first cover powder selection device is installed in the place apart from bistrique 3000mm,
Charging grate plate 26 is 16, and the seam of charging comb seam is wide to be 17mm;
Dividing hopper 11 is 1, and dividing hopper 11 diameters is 900mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 25%, the diameter in hole is 7mm on the air distribution plate, eddy current whirlwind lifting bar 21 is 8, camber, the height of eddy current whirlwind lifting bar 21 is 15mm, the thickness of eddy current whirlwind lifting bar 21 is 3mm;
Discharging grate plate 22 is 20, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 8.8mm;
The grating of the first storehouse ball
| Specification | ????φ100 | ????φ90 | ????φ80 | ????φ70 | ????φ60 |
| Weight (t) | ????1.5 | ????4.5 | ????6.5 | ????5.0 | ????2.5 |
| Ball heavy (t) | ???????????????????????????????????2) | ||||
The second cover powder selection device is installed in the place apart from bistrique 5500mm, and concrete parameter is as follows:
Charging grate plate 26 is 20, and the seam of charging comb seam is wide to be 9mm;
Dividing hopper 11 is 1, and dividing hopper 11 diameters is 900mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 30%, the diameter in hole is 3.5mm on the air distribution plate, eddy current whirlwind lifting bar 21 is 11, camber, the height of eddy current whirlwind lifting bar 21 is 10mm, diameter be 1.0-3.5mm; The height of eddy current whirlwind lifting bar 21 is 10-15mm, 4mm;
Discharging grate plate 22 is 20, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 5.5mm;
The grating of the second storehouse ball
| Specification | ????φ60 | ????φ50 | ????φ40 | ????φ30 | |
| Weight (t) | ????2.5 | ????5.5 | ????5.5 | ????3.5 | |
| Ball heavy (t) | ??????????????????????????????????17 | ||||
The grating of the 3rd storehouse section
| Specification | φ10×10 | φ12×12 | φ14×14 |
| Weight (t) | 20.0 | 15.0 | 11.0 |
| Forge heavy (t) | ????????????????????????????????46 | ||
The height of lifting blade 28 is 300mm-600mm, and thickness is 50-70mm.
Mill tail finished product control device is installed in the mill tail, and concrete parameter is as follows:
Feed back vertebra bucket 33 is 1,
Mill tail sheet plate 34, sieve plate frame 38: it is 2.0mm that each 18 the finished product combs that grind on the tail sheet plate 34 stitch 45 seams wide;
Mill tail discharging grate plate 35 is 18, and the seam of the comb seam 46 on the mill tail discharging grate plate 35 is wide to be 6.0mm.
Open-flow powder mill and the contrast table of opening stream mill output:
| Project | Unit-hour output (t/h) | System's power consumption (kwh/t) | Fineness | Remarks |
| Drive the stream mill | ????28 | ????35 | ????3 | |
| Open-flow powder mill | ????38 | ????23 | ????3 |
Example 3: ￠ 3.0 * 13m open-flow powder mill: basic identical with example 1, difference is concrete parameter difference.
Concrete parameter is as follows:
Divide three storehouses by 2 cover powder selection devices with this grinding machine, the first cover powder selection device is installed in the place apart from bistrique 2250mm,
Charging grate plate 26 is 20, and the seam of charging comb seam is wide to be 16mm;
Dividing hopper 11 is 1, and dividing hopper 11 diameters is 1000mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 20%, the diameter in hole is 4mm on the air distribution plate, eddy current whirlwind lifting bar 21 is 10, camber, the height of eddy current whirlwind lifting bar 21 is 12mm, the thickness of eddy current whirlwind lifting bar 21 is 3.5mm;
Discharging grate plate 22 is 18, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 9.8mm;
One storehouse ball grating
| Specification | ????φ90 | ????φ80 | ??φ70 | ??φ60 | ??φ50 | ??φ40 |
| Weight (t) | ????2.22 | ????4.14 | ???6.0 | ???6.68 | ??4.4 | ??1.0 |
| Ball heavy (t) | ??????????????????????????????????24.5 | |||||
The second cover powder selection device is installed in the place apart from bistrique 5000mm, and concrete parameter is as follows:
Charging grate plate 26 is 24, and the seam of charging comb seam is wide to be 10mm;
Dividing hopper 11 is 1, and dividing hopper 11 diameters is 1000mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 25%, the diameter in the hole on the air distribution plate is 1.0mm, eddy current whirlwind lifting bar 21 is 8, camber, the height of eddy current whirlwind lifting bar 21 is 12mm, the thickness of eddy current whirlwind lifting bar 21 is 4mm;
Discharging grate plate 22 is 24, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 6.0mm;
Two storehouse ball gratings
| Specification | ????φ50 | ????φ40 | ????φ30 | |
| Weight (t) | ????2.14 | ????8.1 | ????6.72 | |
| Ball heavy (t) | ??????????????????????????19 | |||
Grating is forged in three storehouses
| Specification | φ10×10 | φ12×12 | φ14×14 | φ16×16 |
| Weight (t) | 28.0 | 21.0 | 17.5 | 14.5 |
| Forge heavy (t) | ???????????????????????????81 | |||
The height of lifting blade 28 is 300mm-600mm, and thickness two colludes 50-70mm.
End finished product control device is installed in the end, and concrete parameter is as follows:
Feed back vertebra bucket 33 is 1,
Mill tail sheet plate 34, sieve plate frame 38: it is 2.0mm that each 36 the finished product combs that grind on the tail sheet plate 34 stitch 45 seams wide:
Mill tail discharging grate plate 35 is 36, and the seam of the comb seam 46 on the mill tail discharging grate plate 35 is wide to be 6.0mm.
Open-flow powder mill and the contrast table of opening stream mill output:
| Project | Unit-hour output (t/h) | System's power consumption (kwh/t) | Fineness | Remarks |
| Drive the | 35 | 35 | ??3 | |
| Open-flow powder mill | 45 | 27 | ??3 |
Example 4: ￠ 3.2 * 13m open-flow powder mill: basic identical with example 1, difference is concrete parameter difference.
Concrete parameter is as follows:
Divide three storehouses by 2 cover powder selection devices with this grinding machine, the first cover powder selection device is installed in the place apart from bistrique 2500mm,
Charging grate plate 26 is 18, and the seam of charging comb seam is wide to be 18mm;
Dividing hopper 11 is 1, and dividing hopper 11 diameters is 1100mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 35%, the diameter in the hole on the air distribution plate is 8mm, eddy current whirlwind lifting bar 21 is 9, camber, the height of eddy current whirlwind lifting bar 21 is 13mm, the thickness of eddy current whirlwind lifting bar 21 is 3mm;
Discharging grate plate 22 is 10, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 7.8mm;
One storehouse ball grating:
| Specification | ????φ90 | ????φ80 | ??φ70 | ??φ60 | ??φ50 | ??φ40 |
| Weight (t) | ????1.0 | ????4.0 | ??7.0 | ??6.0 | ??4.5 | ??2.0 |
| Ball heavy (t) | ??????????????????????????????????24.5 | |||||
The second cover powder selection device is installed in the place apart from bistrique 4500mm, and concrete parameter is as follows:
Charging grate plate 26 is 22, and the seam of charging comb seam is wide to be 8mm;
Dividing hopper 11 is l spare, and dividing hopper 11 diameters is 1000mm;
The thickness of the air distribution plate 39 of air-distribution device is 4mm, the area of circular hole 40 be air distribution plate 39 area 20%, the diameter in hole is 2.0mm on the air distribution plate, eddy current whirlwind lifting bar 21 is 9, camber, the height of eddy current whirlwind lifting bar 21 is 11mm, the thickness of eddy current whirlwind lifting bar 21 is 3.5mm;
Discharging grate plate 22 is 22, and the seam of the discharging comb seam 23 on the discharging grate plate 22 is wide to be 4.5mm;
Two storehouse ball gratings:
| Specification | ????φ40 | ????φ30 | ????φ25 | |
| Weight (t) | ????5.0 | ????11.0 | ????9.0 | |
| Ball heavy (t) | ????????????????????????25 | |||
Forge in three storehouses:
| Specification | φ16×16 | φ14×14 | φ12×12 | φ10×10 |
| Weight (t) | 18.0 | 20.0 | 22.0 | 24.0 |
| Forge heavy (t) | ??????????????????????84 | |||
The height of lifting blade 28 is 300mm-600mm, and thickness is 50-70mm.
End finished product control device is installed in the end, and concrete parameter is as follows:
Feed back vertebra bucket 33 is 1,
Mill tail sheet plate 34, sieve plate frame 38: it is 2.0mm that each 28 the finished product combs that grind on the tail sheet plate 34 stitch 45 seams wide;
Mill tail discharging grate plate 35 is 28, and the seam of the comb seam 46 on the mill tail discharging grate plate 35 is wide to be 6.0mm.
Open-flow powder mill and the contrast table of opening stream mill output:
| Project | Unit-hour output (t/h) | System's power consumption (kwh/t) | Fineness | Remarks |
| Drive the stream mill | 45 | 36 | ??3 | |
| Open-flow powder mill | 60 | 26 | ??3 |
The present invention also can adopt in rotation simplified 8 and fix 1 or 3 powder selection devices.
Claims (8)
1. open-flow powder mill, it comprises rotary barrel (8), front-end bearing pedestal (7), rear bearing block (10), the front end of rotary barrel (8) is connected with front-end bearing pedestal (7) by bearing, the tail end of rotary barrel (8) is connected with rear bearing block (10) by bearing, and rotary barrel (8) is provided with charging aperture (1), discharging opening (6); It is characterized in that: be fixed with 1-3 powder selection device in the rotary barrel (8),
Described powder selection device comprises branch hopper (11), rotary screen (19), wheel band (25), charging grate plate (26), air-distribution device, discharging grate plate (22), divide hopper (11) middle part to be provided with first air vent (17), divide the interlaced material bin that advances (14) that is provided with in the hopper (11), return material bin (15), the lateral wall that the material bin that advances (14) of branch hopper (11) is located is provided with the material that advances and enters hole (13), the back plate that the material bin that advances (14) of branch hopper (11) is located is provided with the material outlet that advances (12), and the material that advances enters hole (13), the material outlet (12) that advances communicates with the material bin that advances (14) respectively; Divide the lateral wall that material bin (15) locates of returning of hopper (11) to be provided with and to return material and enter hole (16), divide the header board that material bin (15) locates of returning of hopper (11) to be provided with and to return material outlet (18), return material enter hole (16), return material outlet (18) respectively with return material bin (15) and communicate; Rotary screen (19) embayment knife-edge, in the rotary screen (19) is cavity, the tulwar point of rotary screen (19) is a closed, be opening at the bottom of the tulwar of rotary screen (19), big or small corresponding on size at the bottom of the tulwar of rotary screen (19) and the lateral wall that the material bin that advances (14) that divides hopper (11) is located also is mutually permanently connected, the material bin (14) that advances enters hole (13) with the cavity of rotary screen (19) by the material that advances and is communicated with, wall is provided with sieve aperture (20) around the rotary screen (19), and sieve aperture (20) communicates with the cavity of rotary screen (19); Fixedly connected with the tulwar point of rotary screen (19) in the inboard of wheel band (25), the external diameter of wheel band (25) is corresponding with the internal diameter of rotary barrel (8), and wheel band (25) is fixedlyed connected with rotary barrel (8); Air-distribution device is positioned at the inboard of discharging grate plate (22), air-distribution device mainly is made of air distribution plate (39), eddy current whirlwind lifting bar (21), eddy current whirlwind lifting bar (21) is that arc is bucket-shaped, air distribution plate (39) is fan-shaped, be evenly distributed with circular hole (40) on the air distribution plate (39), eddy current whirlwind lifting bar (21) is welded on the air distribution plate (39), and air distribution plate (39) is provided with bolt hole (41); Discharging grate plate (22) is positioned at a side of the material outlet that advances (12), charging grate plate (26) is positioned at a side of returning material outlet (18), discharging grate plate (22), the charging grate plate has screw on (26), discharging grate plate (22), air distribution plate (39), charging grate plate (26) passes screw on the discharging grate plate (22) by bolt (24), bolt hole (41) on the air distribution plate (39), screw on the charging grate plate (26) is fixedly connected, charging grate plate (26) is provided with charging comb seam, discharging grate plate (22) is provided with discharging comb seam (23), and charging grate plate (26) is towards the front end of rotary barrel (8).
2. open-flow powder mill according to claim 1, it is characterized in that: the thickness of the air distribution plate of described air-distribution device (39) is (4) mm, the area of circular hole (40) is the 20%-35% of the area of air distribution plate (39), the diameter that is positioned at the hole on the air distribution plate between rotary barrel (8) first storehouses and second storehouse is 4-8mm, and the diameter in hole is 1.0-3.5mm on the air distribution plate between second storehouse and the 3rd storehouse; The height of eddy current whirlwind lifting bar (21) is 10-15mm, and the thickness of eddy current whirlwind lifting bar (21) is 3-4mm.
3. open-flow powder mill according to claim 1, it is characterized in that: the wide 7-18mm of being of seam that the charging on the described charging grate plate (26) is combed and stitched, the seam of the discharging comb seam (23) on the discharging grate plate (22) is wide to be 1.5-10.0mm, the Kong Kuanwei 1.5-9.0mm of the sieve aperture (20) on the rotary screen (19), the diameter of the circular hole (40) on the air distribution plate (39) is 1.0-8.0mm.
4. open-flow powder mill according to claim 1, it is characterized in that: described powder selection device is 2, first powder selection device (2) is positioned at the front end 2000-3000mm place of rotary barrel (8), and charging grate plate (26) is a 10-20 spare, and the seam of charging comb seam is wide to be 14-18mm; Rotary screen (19) is a 8-10 spare, the Kong Kuanwei 5-9mm of the sieve aperture (20) on the rotary screen (19); Dividing hopper (11) is 1, and dividing hopper (11) diameter is 800-1100mm; Discharging grate plate (22) is a 10-20 spare, and the seam of the discharging comb seam (23) on the discharging grate plate (22) is wide to be 6-10mm; Eddy current whirlwind lifting bar (21) is a 8-11 spare;
Second powder selection device (3) is positioned at the front end 3500-5500mm place of rotary barrel (8), and charging grate plate (26) is a 20-24 spare, and the seam of charging comb seam is wide to be 7-10mm; Rotary screen (19) is a 10-15 spare, the Kong Kuanwei 1.5-3.5mm of the sieve aperture (20) on the rotary screen (19); Dividing hopper (11) is 1, and dividing hopper (11) diameter is 800-1100mm; Discharging grate plate (22) is a 20-24 spare, and the seam of the discharging comb seam (23) on the discharging grate plate (22) is wide to be 1.5-6.0mm; Eddy current whirlwind lifting bar is a 8-11 spare.
5. open-flow powder mill according to claim 1, it is characterized in that: be provided with raising material unit (4) in the little forging storehouse in the described rotary barrel (8) after last powder selection device, raising material unit (4) is mainly by base (29), lifting blade (28) two parts constitute, for the door shape cast member of crooked arc is axially arranged along rotary barrel (8), the crooked radian (r) of lifting blade (28) is the 30-45 degree, lifting blade (28) is provided with lifting hole (27), base (29) is provided with fixing hole (30), and base (29) passes fixing hole (30) by screw fixedlys connected with rotary barrel (8); Every circle is installed four raising material units (4) in the rotary barrel (8), and adjacent two arcs are towards on the contrary, in rotary barrel (8) axially in the shape of a spiral line arrange.
6. open-flow powder mill according to claim 5 is characterized in that: the height of described lifting blade (28) is 300mm-600mm, and thickness is 50-70mm.
7. open-flow powder mill according to claim 1, it is characterized in that: the discharging opening (6) in the described rotary barrel (8) is located the inboard and is provided with finished product control device (5), finished product control device (5) is mainly by feed back vertebra bucket (33), mill tail sheet plate (34), mill tail discharging grate plate (35), sieve plate frame (38) is formed, the cross section of feed back vertebra bucket (33) be two relative humanoid, two relative humanoid centres are the 3rd air vent (42), the external diameter of sieve plate frame (38) is corresponding with the internal diameter of rotary barrel (8), sieve plate frame (38) is fixedlyed connected with rotary barrel (8), sieve plate frame (38) is provided with cavity groove (44), feed back vertebra bucket (33), mill tail sheet plate (34) is positioned at cavity groove (44), feed back vertebra bucket (33) is positioned at the middle part of mill tail sheet plate (34) and is mutually permanently connected, and mill tail sheet plate (34) is provided with finished product comb seam (45); Mill tail discharging grate plate (35) is provided with the seam (46) of combing, and mill tail discharging grate plate (35) is positioned at mill tail sheet plate (34) outside, and mill tail discharging grate plate (35) is fixedlyed connected with sieve plate frame (38) by screw rod (36); Be provided with backward channel (31) between feed back vertebra bucket (33) and the mill tail discharging grate plate (35), feed back vertebra bucket (33) is provided with finished product passage (37) with sieve plate frame (38).
8. open-flow powder mill according to claim 7, it is characterized in that: the feed back vertebra bucket (33) of described finished product control device (5) is 1, mill tail sheet plate (34) is a 16-36 spare, and sieve plate frame (38) is a 16-36 spare, and finished product comb seam (45) seam on the mill tail sheet plate (34) is wide to be 2.0mm; Mill tail discharging grate plate (35) is a 16-36 spare, and the seam of the comb seam (46) on the mill tail discharging grate plate (35) is wide to be 6.0mm; The middle part of 16-36 spare sieve plate frame (38) surrounds the 4th air vent (43), and the middle part of 16-36 spare mill tail discharging grate plate (35) surrounds second air vent (32), and second air vent (32), the 3rd air vent (42), the 4th air vent (43) communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100190204A CN1330421C (en) | 2005-06-30 | 2005-06-30 | Open-flow powder mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100190204A CN1330421C (en) | 2005-06-30 | 2005-06-30 | Open-flow powder mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1709578A true CN1709578A (en) | 2005-12-21 |
| CN1330421C CN1330421C (en) | 2007-08-08 |
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ID=35705909
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100190204A Expired - Fee Related CN1330421C (en) | 2005-06-30 | 2005-06-30 | Open-flow powder mill |
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| CN (1) | CN1330421C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716541B (en) * | 2009-12-25 | 2012-04-18 | 桂林宝利新技术开发有限公司 | Material-dividing hopper of chamber-separating device for adjusting flow rate of materials in tube mill |
| CN103170394A (en) * | 2013-03-08 | 2013-06-26 | 姜其斌 | Special grinding machine for ultrafine coal ash |
| CN104446034A (en) * | 2014-11-25 | 2015-03-25 | 广西鱼峰水泥股份有限公司 | Mineral powder mixing amount improving process for road cement |
| CN104446033A (en) * | 2014-11-25 | 2015-03-25 | 广西鱼峰水泥股份有限公司 | Process for improving mixing amount of mineral powder in cement for road |
| CN109046963A (en) * | 2018-08-14 | 2018-12-21 | 华侨大学 | It is a kind of to be distributed based on material density to reduce the device and method of selection by winnowing energy consumption |
| CN113304829A (en) * | 2021-06-09 | 2021-08-27 | 哈尔滨商业大学 | Device for separating coarse powder and fine powder after crushing traditional Chinese medicine components |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1036565A (en) * | 1973-09-10 | 1978-08-15 | F.L. Smidth And Co. Of Canada | Tube mill |
| CN2326334Y (en) * | 1998-03-11 | 1999-06-30 | 张洪彬 | Arc double-grate hole-screening type partition device for barn |
| JP2001029821A (en) * | 1999-07-21 | 2001-02-06 | Ishikawajima Harima Heavy Ind Co Ltd | Tube mill and its operation |
| CN2399096Y (en) * | 1999-12-02 | 2000-10-04 | 河南省新乡市长城矿山机械厂 | Super-fine grinder |
-
2005
- 2005-06-30 CN CNB2005100190204A patent/CN1330421C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716541B (en) * | 2009-12-25 | 2012-04-18 | 桂林宝利新技术开发有限公司 | Material-dividing hopper of chamber-separating device for adjusting flow rate of materials in tube mill |
| CN103170394A (en) * | 2013-03-08 | 2013-06-26 | 姜其斌 | Special grinding machine for ultrafine coal ash |
| CN104446034A (en) * | 2014-11-25 | 2015-03-25 | 广西鱼峰水泥股份有限公司 | Mineral powder mixing amount improving process for road cement |
| CN104446033A (en) * | 2014-11-25 | 2015-03-25 | 广西鱼峰水泥股份有限公司 | Process for improving mixing amount of mineral powder in cement for road |
| CN109046963A (en) * | 2018-08-14 | 2018-12-21 | 华侨大学 | It is a kind of to be distributed based on material density to reduce the device and method of selection by winnowing energy consumption |
| CN109046963B (en) * | 2018-08-14 | 2023-10-31 | 华侨大学 | Device and method for reducing winnowing energy consumption based on material density distribution |
| CN113304829A (en) * | 2021-06-09 | 2021-08-27 | 哈尔滨商业大学 | Device for separating coarse powder and fine powder after crushing traditional Chinese medicine components |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1330421C (en) | 2007-08-08 |
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