CN102151604B - Iron removal device in vertical roller mill - Google Patents

Iron removal device in vertical roller mill Download PDF

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Publication number
CN102151604B
CN102151604B CN201010606395.1A CN201010606395A CN102151604B CN 102151604 B CN102151604 B CN 102151604B CN 201010606395 A CN201010606395 A CN 201010606395A CN 102151604 B CN102151604 B CN 102151604B
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CN
China
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cylinder
casing
mill
permanent magnet
fixed
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CN201010606395.1A
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Chinese (zh)
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CN102151604A (en
Inventor
王奇
刘子河
刘箴
胡斌
董金利
蔡晓亮
尚桂来
王振中
郑倩
魏娜
Original Assignee
天津水泥工业设计研究院有限公司
中材(天津)粉体技术装备有限公司
天津中材工程研究中心有限公司
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Priority to CN201010606395.1A priority Critical patent/CN102151604B/en
Publication of CN102151604A publication Critical patent/CN102151604A/en
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Publication of CN102151604B publication Critical patent/CN102151604B/en

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Abstract

The invention discloses an iron removal device in a vertical roller mill. The device comprises a truss fixedly connected on the inner wall of a shell in the mill, a box body is hung and fixed on the truss, a supporting shaft is hung and fixed in the box body, a rotary drum is supported on the supporting shaft, and the rotary drum is fixedly connected with the power output shaft of a driving mechanism; the bottom of the box body is provided with a feeding hole, the feeding hole of the box body is positioned on a millstone of the mill and positioned between two adjacent mill rollers of the mill, and the external circle surface of the rotary drum protrudes out of the feeding hole of the box body; and a permanent magnet is hung and fixed below the supporting shaft, the permanent magnet is positioned above the feeding hole of the box body, the highest point of the permanent magnet is positioned below the horizontal diameter of the rotary drum, a distance is formed between the permanent magnet and the rotary drum, an oblique discharge pipe is fixedly connected on the feeding side of the box body, and the feeding hole of the discharge pipe is positioned below the horizontal diameter of the rotary drum and adjacent to the rotary drum. The device can timely discharge milled iron granules and ferromagnetic granules on the millstone out of a millstone area on line in the milling process.

Description

Deironing device inside vertical roller mill

Technical field

The present invention relates to a kind of deironing apparatus, particularly a kind of deironing device inside vertical roller mill.

Background technology

Vertical grinder is a kind of large-scale milling equipment, adopts bed-grinding principle, and collection fragmentation, drying, grinding, classification are transported in integrally, and production efficiency is high, can by bulk, graininess, the material grinding such as Powdered to the fineness of process specifications.

In recent years along with material science and the rapid progress of other related disciplines and the accumulation of practical experience, vertical roller grinder system demonstrates its technology advantage gradually in material grinding field.It, relative to the ball mill of traditional form, considerably reduces specific energy consumption, reaches the effect of energy-saving and emission-reduction; And vertical roller grinder system also has technological design simple, the features such as technique auxiliary equipment is few, and fixed investment is low.

Due to different by grinding material, doped with denuding serious Ferrous particles composition to abrasive body in material, make abrasive body serious wear, shorten maintenance period, increase maintenance cost, also reduce operation rate simultaneously.Especially for slag monomer grinding.Slag is the waste material produced in smelting iron and steel, lack for a long time and recycle mode efficiently, processing mode more common at present carries out thick breaking to recovery slag to roughly select, one-tenth larger for iron-holder in slag is sub-elected again as the raw material of smelting iron and steel or return process for making process as the technique adding ingredient of smelting iron and steel, and fineness is generally used at the part slag of below 50mm prepares steel slag brick or the embedding material as road pavement, the valuable composition of mass efficient in this part slag can not be recycled utilization, causes very large waste.

Confirm through overtesting, after the basicity of slag is reduced to setting by vexed Slag treatment, the slag fine powder characteristic that grinding goes out close to or be equal to the grog characteristic of cement, can as effective admixture of finished cement, simultaneously country has also put into effect relevant slag cement standard, provides effective Regulations for preparing etc. for cement after slag comprehensive utilization and steel slag grinding.

The one-tenth of slag is grouped into relatively unstable, and the slag of the different batches in even same steel mill of different steel mill can cause its composition also different due to the difference of various process conditions, and the change that this one-tenth is grouped into also has had influence on the grinding characters of slag raw material simultaneously.But at least also can retain 2% ~ 5% even more free iron composition and a large amount of ferro element existed with chemical combination state in the slag composition that finally may be used for grinding, this part material is worth high on the one hand, should be recycled; On the other hand, because its density is large, hardness is large, is difficult to grinding, understands, lining board for grinding discs surperficial generation accumulation inner at grinding machine after longtime running, affect the steady production of grinding machine, also can cause serious abrasion to grinding roller, shorten the service life of roller shell, shorten the maintenance period of grinding machine, improve grinding machine maintenance cost, reduce grinding machine utilization rate.Therefore, the deironing apparatus in suitable grinding machine and outside grinding machine is arranged and the technological design of deironing apparatus adds and must consider carrying out grinding to slag man-hour.

Summary of the invention

The present invention provides a kind of deironing device inside vertical roller mill for solving in known technology the technical problem that exists.

The technical scheme that the present invention takes for the technical problem existed in solution known technology is: a kind of deironing device inside vertical roller mill, comprise the truss be fixed on grinding machine middle shell inwall, described truss hangs and is fixed with casing, hang in described casing and be fixed with bolster, described bolster is supported with cylinder, and the power output shaft of described cylinder and driving mechanism is affixed; The bottom of described casing is provided with charging aperture, and described casing charging aperture is positioned on the mill of grinding machine, and between two grinding rollers that grinding machine is adjacent, the periphery of described cylinder protrudes outside described casing charging aperture; The underhung of described bolster is fixed with permanent magnet, described permanent magnet is positioned at directly over described casing charging aperture, the peak of described permanent magnet is positioned under the horizontal diameter of cylinder, and between the two at a distance of setpoint distance, described casing is connected with the drainage conduit of inclination at feed side, the charging aperture of described drainage conduit is positioned under the horizontal diameter of described cylinder, and adjacent with described cylinder.

The present invention can also adopt following technical scheme:

The external surface shape of described permanent magnet and the cavity shape adaptation of described cylinder, the outer surface of described permanent magnet is adjacent with the inner surface of described cylinder.

Be provided with striker plate above the charging aperture of described drainage conduit, described striker plate is fixed on the inwall of described casing.

Described casing charging aperture is arranged on immediately below described bolster.

Described driving mechanism comprises reducing motor, described reducing motor by described power output shaft and described cylinder affixed; Described reducing motor is arranged on outside mill.

Described casing is fixed on described truss by hung bolt, and described truss is provided with installation elongated hole.

The advantage that the present invention has and good effect are: on the mill of grinding machine, between two adjacent grinding rollers, adopt bottom in cylinder that the structure of permanent magnet is set, in grinding process by the iron particle that in mill, mill occurs after grinding and ferromagnetic particle discharge mill region online in time, prevent this part material from occurring piling up on mill, and cause thus the harmful effect that produces and the wearing and tearing to lining board for grinding discs and grinding roller roller shell are run to grinding machine, reduce maintenance cost, ensure grinding machine stable operation, prevent ferromagnetic materials from crossing grinding, improve grinding machine ruuning situation, for grinding machine user creates larger benefit, the object of the ferromagnetic materials that relative worth is higher in recovered material of trying one's best can be reached simultaneously, improve the economy that grinding machine runs.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is that the present invention is at grinding machine inner installation site schematic diagram;

Fig. 3 is the structural representation of cylinder of the present invention;

Fig. 4 is the sectional side view of Fig. 3;

Fig. 5 is the structural representation of truss of the present invention.

In figure: 1, grinding machine middle shell, 2, truss, 2-1, elongated hole is installed, 3, cylinder, 4, casing, 5, power output shaft, 6, reducing motor, 7, drainage conduit, 8, the mill of grinding machine, 9,10, grinding roller, 11, hanger bearing parts II, 12, bolster, 13, hanger bearing parts I, 14, permanent magnet, 15 striker plates.

Detailed description of the invention

For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1 ~ Fig. 4, a kind of deironing device inside vertical roller mill, comprise the truss 2 be fixed on grinding machine middle shell 1 inwall, truss 2 hangs and is fixed with casing 4, hung by the hanger bearing parts I 13 affixed with it and hanger bearing parts II 11 in casing 4 and be fixed with bolster 12, bolster 12 is supported with cylinder 3, cylinder 3 is affixed with the power output shaft 5 of driving mechanism, and power output shaft 5 is by hanger bearing parts II 11 hanger bearing, the bottom of casing 4 is provided with charging aperture, casing charging aperture is positioned on the mill 8 of grinding machine, and be positioned at two adjacent grinding rollers 9 of grinding machine, between 10, the periphery of cylinder 3 protrudes outside casing charging aperture, casing charging aperture is arranged on immediately below bolster 12, hang immediately below bolster 12 and be fixed with permanent magnet 14, the external surface shape of permanent magnet 14 and the cavity shape adaptation of cylinder 3, the outer surface of permanent magnet 14 is adjacent with the inner surface of cylinder 3, the peak of permanent magnet 14 should be positioned under the horizontal diameter of cylinder 3, and between the two should at a distance of setpoint distance, to meet iron particle and ferromagnetic particle detachment roller under cylinder horizontal diameter enters drainage conduit.Casing 4 is connected with the drainage conduit 7 of inclination at feed side, and the charging aperture of drainage conduit 7 is positioned under the horizontal diameter of cylinder 3, and adjacent with cylinder 3.Be provided with striker plate 15 above the charging aperture of drainage conduit 7, striker plate 15 is fixed on the inwall of casing 4.

As shown in Figure 3, above-mentioned deironing apparatus is arranged on grinding machine inside, and be arranged between two adjacent grinding rollers 9,10 of grinding machine, actual arrangement quantity is depending on grinding machine model.

Above-mentioned deironing apparatus mainly comprises three parts: one) except iron component, and two) truss, three) driving mechanism.

One) except iron component comprises cylinder 3 and be arranged on the permanent magnet 14 of drums inside, the bolster 12 of idler pulley and bearing mounted thereto, the casing 4 of mounting rotary drum and the drainage conduit 7 that is fixed on casing, drainage conduit 7 should be installed after cylinder 3, casing 4 try installation in adjustment, ensures smooth and easy discharge.Cylinder 3 rotates under the driving of driving mechanism, ferromagnetic materials is adsorbed to the outer surface of cylinder 3 under the effect of permanent magnet 14, after ferromagnetic materials departs from magnetive attraction sphere of action, under the effect of centrifugal force and striker plate 15 and wall box, detachment roller surface, enters drainage conduit 7 and is discharged casing 4; Casing 4 outer surface should carry out Wear-resistant Treatment, relatively airtight, only has the charging aperture entered for ferromagnetic materials and the drainage conduit of discharging for it, is arranged on truss by set bolt.The above-mentioned iron component that removes should adopt nonferromugnetic material to manufacture.Permanent magnet should be made up of fire resistant magnetic material.

Two) truss 2 is formed primarily of shaped steel, be fixed on earrings on inner middle shell 1 inwall of grinding machine and structural steel connecting member by bearing pin and bolt, the part be connected with casing 4 has the installation elongated hole 2-1 for adjusting tank body position, horizontal elongated hole on crossbeam is for adjusting the position of deironing apparatus on mill radial direction, the elongated hole of vertical direction for adjusting the height of deironing apparatus, thus adjusts the spacing on cylinder and mill between material surface.Shaped steel surface should through suitable Wear-resistant Treatment, and position easy to wear is designed to the form being convenient to replacing simultaneously, ensures security of operation, reduces maintenance cost.

Three) driving mechanism: reducing motor 6(as required motor can be variable-frequency motor) to be connected with cylinder 3 by power output shaft 5 and to drive it to rotate, in order to ensure the stable operation of motor, consider security of operation, should by motor arrangement outside mill.Drive motors also can be arranged in grinding machine inside depending on concrete condition.

Above-mentioned cylinder 3 is connected with two axles, an axle is the power output shaft 5 of driving mechanism, and another root axle is the bolster 12 of idler pulley, and bolster 12 is by bearing idler pulley 3.

Above-mentioned deironing apparatus can effectively get rid of iron particle in mill in material and ferromagnetic materials online in grinding process, effectively reduces grinding machine and weares and teares, and rational in infrastructure, be easy to processing and manufacturing, easy to adjust; Structure is simple, convenient disassembly, and can regulate gap between cylinder and mill according to actual condition, permanent magnet magnetism intensity can adjust.

Above-mentioned deironing apparatus, through appropriate reconstruction, can be applied in the middle of the vertical mill grinding system for the higher material of other iron-holder, such as slag vertical-mill completely.

Operation principle of the present invention:

Driving mechanism head roll rotates, the iron particle that mill is kicked up in motion and ferromagnetic particle are subject to the attraction of permanent magnet in cylinder, be adsorbed onto outer surface of cylinder and be brought to box house, iron particle and the attraction of ferromagnetic particle owing to departing from permanent magnet, detachment roller surface under the influence of centrifugal force, fall in drainage conduit and discharge grinding machine, and enter the external circulation process route of grinding machine, outside mill, realize further sorting and collection.

Claims (6)

1. a deironing device inside vertical roller mill, it is characterized in that, comprise the truss be fixed on grinding machine middle shell inwall, described truss hangs and is fixed with casing, hang in described casing and be fixed with bolster, described bolster is supported with cylinder, and the power output shaft of described cylinder and driving mechanism is affixed; The bottom of described casing is provided with charging aperture, and described casing charging aperture is positioned on the mill of grinding machine, and between two grinding rollers that grinding machine is adjacent, the periphery of described cylinder protrudes outside described casing charging aperture; The underhung of described bolster is fixed with permanent magnet, described permanent magnet is positioned at directly over described casing charging aperture, the peak of described permanent magnet is positioned under the horizontal diameter of cylinder, and between the two at a distance of setpoint distance, described casing is connected with the drainage conduit of inclination at feed side, the charging aperture of described drainage conduit is positioned under the horizontal diameter of described cylinder, and adjacent with described cylinder.
2. deironing device inside vertical roller mill according to claim 1, is characterized in that, the external surface shape of described permanent magnet and the cavity shape adaptation of described cylinder, the outer surface of described permanent magnet is adjacent with the inner surface of described cylinder.
3. deironing device inside vertical roller mill according to claim 1 and 2, is characterized in that, is provided with striker plate above the charging aperture of described drainage conduit, and described striker plate is fixed on the inwall of described casing.
4. deironing device inside vertical roller mill according to claim 1, is characterized in that, described casing charging aperture is arranged on immediately below described bolster.
5. deironing device inside vertical roller mill according to claim 1, is characterized in that, described driving mechanism comprises reducing motor, described reducing motor by described power output shaft and described cylinder affixed; Described reducing motor is arranged on outside mill.
6. deironing device inside vertical roller mill according to claim 1, is characterized in that, described casing is fixed on described truss by hung bolt, and described truss is provided with installation elongated hole.
CN201010606395.1A 2010-12-27 2010-12-27 Iron removal device in vertical roller mill CN102151604B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010606395.1A CN102151604B (en) 2010-12-27 2010-12-27 Iron removal device in vertical roller mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010606395.1A CN102151604B (en) 2010-12-27 2010-12-27 Iron removal device in vertical roller mill

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CN102151604B true CN102151604B (en) 2015-02-25

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103599837B (en) * 2013-11-29 2015-08-26 成都建筑材料工业设计研究院有限公司 The row's of pressure iron device in vertical mill
CN104511345A (en) * 2014-12-18 2015-04-15 河南黎明重工科技股份有限公司 Abrasive disk material blocking ring for vertical roll grinder
CN105381880A (en) * 2015-11-27 2016-03-09 中冶南方工程技术有限公司 Iron removing device of steel slag vertical mill and iron removing method of steel slag vertical mill
CN106622499A (en) * 2016-12-27 2017-05-10 中冶南方工程技术有限公司 Steel slag horizontal roller mill iron removing device and iron removing method thereof
CN110801909A (en) * 2019-11-14 2020-02-18 中材(天津)粉体技术装备有限公司 Vertical roller grinding method for grinding dry powdery material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510071A (en) * 1967-06-29 1970-05-05 Foster Wheeler Corp Pyrite and tramp iron removal apparatus for coal pulverizers
CN1547509A (en) * 2001-08-23 2004-11-17 勒舍有限公司 Roller grinding mill and method for grinding materials that contain magnetizable components
KR20060022007A (en) * 2004-09-06 2006-03-09 류기문 Removal apparatus for iron of vertical mill
CN201179698Y (en) * 2008-03-10 2009-01-14 四川省资阳市雅之江塑业有限公司 Plastic crushing and iron-removing machine
CN201930841U (en) * 2010-12-27 2011-08-17 天津水泥工业设计研究院有限公司 Deironing device inside vertical roller mill

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510071A (en) * 1967-06-29 1970-05-05 Foster Wheeler Corp Pyrite and tramp iron removal apparatus for coal pulverizers
CN1547509A (en) * 2001-08-23 2004-11-17 勒舍有限公司 Roller grinding mill and method for grinding materials that contain magnetizable components
KR20060022007A (en) * 2004-09-06 2006-03-09 류기문 Removal apparatus for iron of vertical mill
CN201179698Y (en) * 2008-03-10 2009-01-14 四川省资阳市雅之江塑业有限公司 Plastic crushing and iron-removing machine
CN201930841U (en) * 2010-12-27 2011-08-17 天津水泥工业设计研究院有限公司 Deironing device inside vertical roller mill

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SE01 Entry into force of request for substantive examination
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TA01 Transfer of patent application right

Effective date of registration: 20150120

Address after: Tianjin District of Beichen city in the 300400 major North Road No. 1

Applicant after: Tianjin Cement Industry Design & Research Institute Co., Ltd.

Applicant after: Sinoma (Tianjin) powder technology equipment Co., Ltd.

Applicant after: Tianjin Sinoma Engineering Research Center Co., Ltd.

Address before: Tianjin District of Beichen city in the 300400 major North Road No. 1

Applicant before: Tianjin Cement Industry Design & Research Institute Co., Ltd.

Applicant before: Tianjin CEMTECK Powder Technology Co., Ltd.

Applicant before: Tianjin Sinoma Engineering Research Center Co., Ltd.

C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: SINOMA (TIANJIN) POWDER TECHNOLOGICAL EQUIPMENT CO

Free format text: FORMER OWNER: TIANJIN SHIMING POWDER TECHNOLOGICAL EQUIPMENT CO., LTD. TIANJIN SINOMA ENGINEERING RESEARCH CENTER CO., LTD.

Effective date: 20150120

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C14 Grant of patent or utility model