CN102225397B - Cement raw material preparation system for rolling machine - Google Patents

Cement raw material preparation system for rolling machine Download PDF

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Publication number
CN102225397B
CN102225397B CN 201110149138 CN201110149138A CN102225397B CN 102225397 B CN102225397 B CN 102225397B CN 201110149138 CN201110149138 CN 201110149138 CN 201110149138 A CN201110149138 A CN 201110149138A CN 102225397 B CN102225397 B CN 102225397B
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CN
China
Prior art keywords
powder
rotor
distributing cone
wind blade
discharging opening
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Expired - Fee Related
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CN 201110149138
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Chinese (zh)
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CN102225397A (en
Inventor
郭建伟
葛中伟
郭翰
孔松涛
孔占霞
刘涛
张志强
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HENAN ZHONGLONG TECHNOLOGY Co Ltd
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HENAN ZHONGLONG TECHNOLOGY Co Ltd
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Priority to CN 201110149138 priority Critical patent/CN102225397B/en
Publication of CN102225397A publication Critical patent/CN102225397A/en
Application granted granted Critical
Publication of CN102225397B publication Critical patent/CN102225397B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention provides a cement raw material preparation system for a rolling machine. The system comprises a draught fan, a steady-flow constant weight bin, a rolling machine, a bucket elevator, a primary powder selecting device, a powder selecting machine and a rotoclone collector, wherein the rotor in the powder selecting machine is arranged vertical to the horizontal plane; a vortex scatter device is arranged inside the powder selecting machine; wind guiding blades of the powder selecting machine are of wing shapes; and a fine powder outlet of the powder selecting machine is communicated with an inlet of the rotoclone collector. The cement raw material preparation system has the advantages of high powder selecting efficiency, small equipment abrasion, low energy consumption, small floor area and little infrastructure cost.

Description

A kind of cement raw material preparation system for rolling machine
Technical field
The present invention relates to a kind of cement slurry preparation system, specifically a kind of cement raw material preparation system for rolling machine.
Background technology
Cement slurry preparation is an important step of manufacture of cement, in recent years, utilizes the roll squeezer attrition crushing to produce the ore of cement, the raw material preparation system of breaing up, select powder with powder concentrator again in China by promotion and application.
Traditional cement raw material preparation system for rolling machine is as shown in Figure 2: material is sent into V-type powder concentrator 10, through V-type powder concentrator 10 break up, classification; Meal is by steady-flow constant-weight storehouse 9, reenters V-type powder concentrator 10 after being admitted to roll squeezer 8 roll-ins again; Fine powder then enters the horizontally disposed secondary powder selection device 11 further selected powder of rotor, and qualified fine powder enters rotoclone collector 13 by pipeline 12 afterwards.
But, the rotor of the secondary powder selection device 11 in this system is owing to be horizontally disposed with, its formation select up and down vertical water horizontal line of powder flow field, so that the effective Uniform Dispersion and can not being selected for a long time of material, cause the powder selection device grinding efficiency low, thereby so that the powder in the whole system, dirt, grain internal circulating load increase, system's operating load and equipment attrition have been strengthened; Secondary powder selection device in the legacy system is easy to make thick material to be incorporated in the qualified powder, and so thick material will occur burning saturating, not half-cooked situation in sintering process, has a strong impact on cement quality; And the secondary powder selection device 11 in the legacy system needs to be connected with rotoclone collector 13 by pipeline 12, has increased the floor space of energy consumption and factory building.
Summary of the invention
The present invention seeks to the deficiency for solving the problems of the technologies described above, a kind of cement raw material preparation system for rolling machine is provided, it has grinding efficiency height, equipment attrition is little, energy consumption is low, occupation of land is little and capital cost is few advantage.
The present invention solves the problems of the technologies described above the technical scheme that adopts to be: a kind of cement raw material preparation system for rolling machine, comprise air-introduced machine, steady-flow constant-weight storehouse, roll squeezer, bucket elevator, the one-level powder selection device, powder concentrator and rotoclone collector, air-introduced machine connects respectively the air inlet of one-level powder selection device and the air outlet of rotoclone collector, the meal discharging opening of one-level powder selection device is connected to the charging aperture of steady-flow constant-weight storehouse, the discharging opening of steady-flow constant-weight storehouse is connected with the charging aperture of roll squeezer, the discharging opening of roll squeezer is connected to the charging aperture of one-level powder selection device by bucket elevator, the fine powder discharging opening of one-level powder selection device is connected with the feeding mouth of powder concentrator, the meal discharge nozzle of powder concentrator is connected with the feeding mouth of steady-flow constant-weight storehouse, be provided with a material distributing cone in the powder concentrator, material distributing cone is the funnel-form of upper end open, it is split channel between the housing of material distributing cone and powder concentrator, the feeding mouth of powder concentrator is arranged on the below of material distributing cone, above material distributing cone, be provided with rotor, the rotating shaft of rotor is perpendicular to horizontal plane, a week is evenly distributed with wind blade around the shaft, wind blade is fixedly connected with rotor, form separating chamber between wind blade and the rotating shaft, be provided with the eddy current dispersing device that is connected with rotor in the separating chamber, the upper end of separating chamber is provided with the fine powder discharging opening, the fine powder discharging opening is connected with the feeding mouth of rotoclone collector, and the material distributing cone bottom is provided with the meal discharge nozzle.
Described material distributing cone, the tapering of its latter half is greater than the tapering of the first half.
Described one-level powder selection device is V-type powder concentrator or beater.
Described eddy current dispersing device is made of two Plate Weldings that are obliquely installed, and the upper end of two steel plates welds together, and links to each other with the connecting ring of wind blade upper end, and the thickness of steel plate is 10mm-30mm.
Described wind blade is airfoil, and its side is fairshaped cambered surface, and the width of wind blade is 50mm-200mm, and maximum ga(u)ge is 20mm-50mm, and the lower end of wind blade is connected with rotor, and the upper end is connected with connecting ring.
Beneficial effect is: the powder concentrator that the secondary powder selection device of native system adopts, its rotor vertically arranges, the horizontal flow field width that forms is spacious, powder-separating space is large, have the sufficient powder time of selecting, and the rotor that vertically arranges can make the material Uniform Dispersion, improve the grinding efficiency that selects powder and selected the opaque amount, thereby reduce solid circulating rate, reduced whole operating load and the equipment attrition of selecting powder system, so that system power consumption reduces by 30%; The material distributing cone that arranges in the powder concentrator can make that the material Uniform Dispersion that enters powder concentrator is laggard to enter separating chamber, and the tapering of the latter half of material distributing cone is greater than the tapering of the first half, so that thick material enters the meal discharge nozzle more easily, is discharged from powder concentrator; Eddy current dispersing device in the powder concentrator can destroy the whirlpool flow field that indivedual fine powders form in the separating chamber, so that fine powder can select normally the powder flow, improves grinding efficiency; The wind blade of powder concentrator is airfoil, and its side is fairshaped cambered surface, can make like this wind blade produce pressure differential in rotary course, so that select powder more abundant in the separating chamber, thus improve grinding efficiency; Powder concentrator and rotoclone collector are close to, and have reduced the install pipeline in traditional preparation system, thereby have reduced occupation of land space and capital cost.
Description of drawings
Fig. 1 is the schematic diagram of cement raw material preparation system for rolling machine of the present invention;
Fig. 2 is the schematic diagram of traditional cement raw material preparation system for rolling machine;
Fig. 3 is the structural representation of powder concentrator of the present invention and rotoclone collector;
Fig. 4 is the set-up mode schematic diagram of rotor of powder separator of the present invention;
Fig. 5 is the schematic top plan view of rotor of powder separator of the present invention, wind blade.
Mark among the figure: 1, bucket elevator, 2, roll squeezer, 3, steady-flow constant-weight storehouse, 4, one-level powder selection device, 5, air-introduced machine, 6, rotoclone collector, 7, powder concentrator, 8, roll squeezer, 9, steady-flow constant-weight storehouse, 10, V-type powder concentrator, 11, the secondary powder selection device, 12, pipeline, 13, rotoclone collector, 14, the meal discharge nozzle, 15, housing, 16, material distributing cone, 17, wind blade, 18, rotating shaft, 19, rotor, 20, separating chamber, 21, fine powder discharging opening, 22, split channel, 23, feeding mouth, 24, eddy current dispersing device, 25, connecting ring.
The specific embodiment
As shown in the figure, a kind of cement raw material preparation system for rolling machine, comprise air-introduced machine 5, steady-flow constant-weight storehouse 3, roll squeezer 2, bucket elevator 1, one-level powder selection device 4, powder concentrator 7 and rotoclone collector 6, air-introduced machine 5 connects respectively the air inlet of one-level powder selection device 4 and the air outlet of rotoclone collector 6, the meal discharging opening of one-level powder selection device 4 is connected to the charging aperture of steady-flow constant-weight storehouse 3, the discharging opening of steady-flow constant-weight storehouse 3 is connected with the charging aperture of roll squeezer 2, the discharging opening of roll squeezer 2 is connected to the charging aperture of one-level powder selection device 4 by bucket elevator 1, the fine powder discharging opening of one-level powder selection device 4 is connected with the feeding mouth 23 of powder concentrator 7, the meal discharge nozzle 14 of powder concentrator 7 is connected with the feeding mouth of steady-flow constant-weight storehouse 3, be provided with a material distributing cone 16 in the powder concentrator 7, material distributing cone 16 is the funnel-form of upper end open, and material distributing cone 16 is welded on the top of powder concentrator 7 by steel column; Be split channel 22 between the housing 15 of material distributing cone 16 and powder concentrator 7, the feeding mouth 23 of powder concentrator 7 is arranged on the below of material distributing cone 16, above material distributing cone 16, be provided with rotor 19, the rotating shaft 18 of rotor 19 is perpendicular to horizontal plane, 18 1 weeks were evenly distributed with wind blade 17 around the shaft, wind blade 17 is fixedly connected with rotor 19, form separating chamber 20 between wind blade 17 and the rotating shaft 18, be provided with the eddy current dispersing device 24 that is connected with rotor 19 in the separating chamber 20, the upper end of separating chamber 20 is provided with fine powder discharging opening 21, fine powder discharging opening 21 is connected with the feeding mouth of rotoclone collector 6, and material distributing cone 16 bottoms are provided with meal discharge nozzle 14.Wherein, the tapering of the latter half of material distributing cone 16 is greater than the tapering of its first half, and one-level powder selection device 4 is V-type powder concentrator or beater, selects the better effects if of V-type powder concentrator; Eddy current dispersing device 24 is made of two Plate Weldings that are obliquely installed, and the thickness of steel plate is 10mm-30mm, and the upper end of two steel plates welds together, and links to each other with the connecting ring 25 of wind blade 17 upper ends, and the lower end of two steel plates then is separately fixed on the rotor 19; Wind blade 17 is airfoil, and its side is fairshaped cambered surface, and the width of wind blade 17 is 50mm-200mm, and maximum ga(u)ge is 20mm-50mm, and the lower end of wind blade is connected with rotor 19, and the upper end is connected with connecting ring 25; Meal discharge nozzle 14 on the material distributing cone 16 can arrange 1 or a plurality of, wherein, 1 meal discharge nozzle is set can reduces the blocking volume of powder in split channel 22, so that the easier separating chamber that enters of powder; The thick material that a plurality of meal discharge nozzles then are easy to enter material distributing cone 16 inside is set is discharged from powder concentrator.
The implementation step is, material is sent into steady-flow constant-weight storehouse 3, the material that goes out steady-flow constant-weight storehouse 3 enters roll squeezer 2 attrition crushings, material after the extruding is sent in the one-level powder selection device 4 by bucket elevator 1, one-level powder selection device 4 is with the broken material scattering and grading, thin material is sent into the feeding mouth 23 of powder concentrator 7, underproof coarse fodder is sent back to steady-flow constant-weight storehouse 3, make material enter again attrition crushing of roll squeezer 2 by steady-flow constant-weight storehouse 3 again; The material that enters powder concentrator 7 is directed in the rectification field in the separating chamber 20 by material distributing cone 16, thus the level that enters roomy select the powder flow field; In selecting the powder flow field, some material particles can form because of irregular movement eddy current in selecting the powder flow field, by the motion of eddy current dispersing device 24 in separating chamber 20, then can destroy these eddy current, so that material particles can normally select the powder flow; When the wind blade 17 of airfoil moves in separating chamber, can be in separating chamber mineralization pressure poor, like this can so that material particles select powder more abundant; Afterwards, selected qualified fine powder directly enters rotoclone collector 6 from the fine powder discharging opening 21 of powder concentrator 7, thereby finishes gas, the solid separation, obtains qualified cement slurry powder; Underproof powder then under action of gravitation, falls to material distributing cone 16 inside, then is discharged from the powder concentrator 7 by meal discharge nozzle 14.

Claims (2)

1. cement raw material preparation system for rolling machine, comprise air-introduced machine (5), steady-flow constant-weight storehouse (3), roll squeezer (2), bucket elevator (1), one-level powder selection device (4), powder concentrator (7) and rotoclone collector (6), air-introduced machine (5) connects respectively the air inlet of one-level powder selection device (4) and the air outlet of rotoclone collector (6), the meal discharging opening of one-level powder selection device (4) is connected to the charging aperture of steady-flow constant-weight storehouse (3), the discharging opening of steady-flow constant-weight storehouse (3) is connected with the charging aperture of roll squeezer (2), the discharging opening of roll squeezer (2) is connected to the charging aperture of one-level powder selection device (4) by bucket elevator (1), the fine powder discharging opening of one-level powder selection device (4) is connected with the feeding mouth (23) of powder concentrator (7), the meal discharge nozzle (14) of powder concentrator (7) is connected with the feeding mouth of steady-flow constant-weight storehouse (3), it is characterized in that: be provided with a material distributing cone (16) in the powder concentrator (7), material distributing cone (16) is welded on the top of powder concentrator (7) by steel column, material distributing cone (16) is the funnel-form of upper end open, be split channel (22) between the housing (15) of material distributing cone (16) and powder concentrator (7), the feeding mouth (23) of powder concentrator (7) is arranged on the below of material distributing cone (16), be provided with rotor (19) in the top of material distributing cone (16), the rotating shaft (18) of rotor (19) is perpendicular to horizontal plane, (18) one weeks were evenly distributed with wind blade (17) around the shaft, wind blade (17) is fixedly connected with rotor (19), form separating chamber (20) between wind blade (17) and the rotating shaft (18), be provided with the eddy current dispersing device (24) that is connected with rotor (19) in the separating chamber (20), the upper end of separating chamber (20) is provided with fine powder discharging opening (21), fine powder discharging opening (21) is connected with the feeding mouth of rotoclone collector (6), and material distributing cone (16) bottom is provided with meal discharge nozzle (14); Described material distributing cone (16), the tapering of its latter half is greater than the tapering of the first half; Described eddy current dispersing device (24) is made of two Plate Weldings that are obliquely installed, the lower end of two steel plates is separately fixed on the rotor (19), the upper end of two steel plates welds together, and links to each other with the connecting ring (25) of wind blade (17) upper end, and the thickness of steel plate is 10mm-30mm; Described wind blade (17) is airfoil, and its side is fairshaped cambered surface, and the width of wind blade (17) is 50mm-200mm, and maximum ga(u)ge is 20mm-50mm, and the lower end of wind blade is connected with rotor (19), and the upper end is connected with connecting ring (25).
2. according to a kind of cement raw material preparation system for rolling machine claimed in claim 1, it is characterized in that: described one-level powder selection device (4) is V-type powder concentrator or beater.
CN 201110149138 2011-06-03 2011-06-03 Cement raw material preparation system for rolling machine Expired - Fee Related CN102225397B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110149138 CN102225397B (en) 2011-06-03 2011-06-03 Cement raw material preparation system for rolling machine

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Application Number Priority Date Filing Date Title
CN 201110149138 CN102225397B (en) 2011-06-03 2011-06-03 Cement raw material preparation system for rolling machine

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CN102225397B true CN102225397B (en) 2013-04-24

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103951296B (en) * 2014-04-16 2015-09-23 常州轻工职业技术学院 Production line prepared by cement
CN112808586A (en) * 2020-12-22 2021-05-18 奉节县重名水泥有限责任公司 Cement selection powder device
CN112827831B (en) * 2021-01-05 2021-10-26 泰山中联水泥有限公司 Be used for cement manufacture doublestage selection powder mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101134175A (en) * 2007-09-24 2008-03-05 天津水泥工业设计研究院有限公司 Roller press combination grinding device
CN101537381A (en) * 2009-04-14 2009-09-23 江苏海建股份有限公司 Final grinding system of roll squeezer
CN101786082A (en) * 2010-03-25 2010-07-28 天津水泥工业设计研究院有限公司 Up feeding and down feeding double-grading type high-efficient powder concentrator
CN202162017U (en) * 2011-06-03 2012-03-14 河南中隆科技有限责任公司 Cement raw material preparation system for rolling machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009028660A (en) * 2007-07-27 2009-02-12 Ube Machinery Corporation Ltd Operation method of vertical crusher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101134175A (en) * 2007-09-24 2008-03-05 天津水泥工业设计研究院有限公司 Roller press combination grinding device
CN101537381A (en) * 2009-04-14 2009-09-23 江苏海建股份有限公司 Final grinding system of roll squeezer
CN101786082A (en) * 2010-03-25 2010-07-28 天津水泥工业设计研究院有限公司 Up feeding and down feeding double-grading type high-efficient powder concentrator
CN202162017U (en) * 2011-06-03 2012-03-14 河南中隆科技有限责任公司 Cement raw material preparation system for rolling machine

Non-Patent Citations (1)

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Title
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