CN202387518U - Large vertical roller mill for ultrafine milling - Google Patents

Large vertical roller mill for ultrafine milling Download PDF

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Publication number
CN202387518U
CN202387518U CN2011205586514U CN201120558651U CN202387518U CN 202387518 U CN202387518 U CN 202387518U CN 2011205586514 U CN2011205586514 U CN 2011205586514U CN 201120558651 U CN201120558651 U CN 201120558651U CN 202387518 U CN202387518 U CN 202387518U
Authority
CN
China
Prior art keywords
mill
vertical roller
roller mill
welded
powder concentrator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011205586514U
Other languages
Chinese (zh)
Inventor
王浩
王显彬
周敏
习巧翠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHAANXI STAR INDUSTRIAL Co Ltd
Original Assignee
SHAANXI STAR INDUSTRIAL Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHAANXI STAR INDUSTRIAL Co Ltd filed Critical SHAANXI STAR INDUSTRIAL Co Ltd
Priority to CN2011205586514U priority Critical patent/CN202387518U/en
Application granted granted Critical
Publication of CN202387518U publication Critical patent/CN202387518U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a large vertical roller mill for ultrafine milling. A main transmission motor is connected with a main reducer, a milling disk is mounted on the main reducer, a retaining ring is welded on the milling disk, a milling roller is connected with a rocker arm and driven by a hydraulic cylinder, a hot vane is fixed outside the milling disk and the retaining ring in a hook way; an air guide device is welded and fixed on a vertical roller mill shell, a rotation portion is connected with a powder concentrator motor, and a powder concentrator reducer by a powder concentrator main shaft and driven to rotate; a pneumatic double-layer returning and feeding air locking valve and a pneumatic double-layer raw material feeding air locking valve are respectively connected on the vertical roller mill shell; an air outlet is welded on the upper part of the vertical roller mill shell, and a coarse powder feeder is welded on the vertical roller mill shell. Not only qualified ultrafine powder can be milled by the large vertical roller mill, but also the efficiency is high and the power consumption is low.

Description

A kind of large-scale vertical roller mill that is used for superfine grinding
Technical field
The utility model relates to the large-scale grinding machine equipment of material, particularly a kind of large-scale SRM vertical roller grinder that is used to adapt to the superfine grinding purposes.
Background technology
Ball mill be use for over 100 years more than a hundred years the widest milling equipment, but its mill efficiency is low, is difficult to realize that specific area is greater than 420m below the particle diameter 30 μ m 2The technological requirement of/kg superfine grinding.Thereafter roll squeezer that grows up and common vertical roll grinder, its mill efficiency be than higher, but be not suitable for superfine grinding, only is suitable for the coarse grained grinding of particle diameter 40~100 μ m.Finished particle is thick, and roll surface, mill liner plate are not wear-resisting.
The utility model content
The purpose of the utility model is the defective that to have the vertical mill unreasonable structure now, is not suitable for superfine grinding in order to overcome, and a kind of large-scale vertical roller mill that is used for superfine grinding is provided, and can go out qualified superfine grinding by grinding, and efficient is high.
The technical scheme of the utility model is: a kind of large-scale vertical roller mill that is used for superfine grinding; Main driving motor is connected with main gear reducer; Mill is installed on the main gear reducer, and collet is welded on the mill, and grinding roller is connected with rocking arm; And drive through hydraulic cylinder, the hot blast ring is fixed on mill and collet outside with the mode of hook; Air ducting is weldingly fixed on the vertical mill housing, and rotating part is connected with powder concentrator motor, powder concentrator reductor through the powder concentrator main shaft, and the driving rotational partial rotation; Pneumatic double-deck feed back feeding air valve and pneumatic double-deck raw material feeding air valve are connected on the vertical mill housing with flange respectively; Air outlet is welded on vertical mill housing top, and the meal blanking device is welded on the vertical mill housing.
Wherein mill adopts the inclination mode, and grinding roller is taper, is divided into small end and big end.
Wherein the hot blast ring progressively strengthens along the opposite direction of mill direction of rotation.
The beneficial effect of the utility model is:
1, mill adopts the inclination form, and grinding roller is taper.Both cooperations make material form a center of circle wedge shape material bed, and the small end of grinding roller forms the precompressed degassing to material, and big end is implemented high-efficient grinding.
2, the hot blast ring adopts the form that progressively strengthens along mill direction of rotation rightabout; Material after rolling is taken away by the high speed thermal current of 45m/s; And flash baking, make the material circulation on the mill be able to carry out like this, can constantly accept mill middle part new that add and the material that falls; And constantly move to limit portion by the mill middle part, back and forth roll circulation.
3, pneumatic double-deck feeding air valve can reach the dual purpose of feeding and lock wind; Unique power resources of material shuttling movement are exactly system's air-introduced machine in the Vertical Mill; Will not cause the wind short circuit if there is airlock, the vane wind speed is descended greatly, material levigate in the vertical mill can not in time be taken out of; The outer circulation amount increases, and system throughput descends, output reduces.And the use of this feeding air valve device has solved the contradiction of feeding and lock wind, both having reached can unimpeded feeding, guarantees that again wind can not bleed from spout, thereby has guaranteed the circulation of material in vane wind speed and the mill.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of mill and grinding roller.
The specific embodiment
As shown in Figure 1: main motor 1 drives main gear reducer 2 rotations; Make mill 3 rotations that are installed on the reductor; Material enters on the mill 3 through feeding elephant trunk 19 from pneumatic double-deck feed back feeding air valve 14-2 and pneumatic double-deck raw material feeding air valve 14-1, and rocking arm 6 drives through hydraulic cylinder 7, makes the material on the grinding roller 5 extruding mills 3 that are connected on the rocking arm; Taken to 11 li of air ductings by the hot blast of the material of grind up mill through hot blast ring 8; Through the sorting of rotating part 10, qualified fine powder enters into next equipment through air outlet 15 and collects, and underproof fine powder gets into next equipment through meal feed opening 16.
Rotating part 10 is to connect with powder concentrator reductor 12, powder concentrator motor 13 through powder concentrator main shaft 18, and through its driving.
Operation principle of the utility model and flow process:
Mill feed material is sent the feeding bin of weighing to by conveying equipment; Through pneumatic double-deck feed back feeding air valve 14-2 and pneumatic double-deck raw material feeding air valve 14-1 feeding mill 3 middle parts, material along with the rotation of mill from mind-set border movement wherein, as shown in Figure 2; This vertical roller grinder forms stable material bed when adopting the cooperation of taper grinding roller 5 and inclination mill 3 to guarantee grinding material; The small end of each grinding roller 5 is responsible for follow-up grinding roller and prepares the material bed, and big end is responsible for grinding material, and the material after the pulverizing is taken up by the thermal current that gets into from hot blast ring 8 at the mill edge; Coarse granule falls back to mill grinding again; Thinner particle is brought to powder concentrator 9 and carries out sorting, and the meal after the sorting turns back to mill grinding more again, and qualified fine powder is brought into dust-precipitator and collects as finished product.The large granular materials of the difficult mill of part can not be taken up by hot blast at the vane place; Get into external circulating system through the scum mouth; Getting into vertical roller grinder once more with new feeding grinding through after the deironing; The sorting aspect adopts the efficient ultra-fine cage type powder concentrator of sound state combination formula of particular design, can guarantee the sorting of superfine powder.

Claims (3)

1. large-scale vertical roller mill that is used for superfine grinding; It is characterized in that main driving motor (1) is connected with main gear reducer (2); Mill (3) is installed on the main gear reducer (2), and collet (4) is welded on the mill (3), and grinding roller (5) is connected with rocking arm (6); And drive through hydraulic cylinder (7), hot blast ring (8) is fixed on mill and collet outside with the mode of hook; Air ducting (11) is weldingly fixed on the vertical mill housing (17), and rotating part (10) is connected with powder concentrator motor (13), powder concentrator reductor (12) through powder concentrator main shaft (18), and driving rotational part (10) rotation; Pneumatic double-deck feed back feeding air valve (14-2) is connected on the vertical mill housing (17) with flange respectively with pneumatic double-deck raw material feeding air valve (14-1); Air outlet (15) is welded on vertical mill housing (17) top, and meal blanking device (16) is welded on the vertical mill housing (17).
2. the large-scale vertical roller mill that is used for superfine grinding as claimed in claim 1 is characterized in that mill (3) tilts, and grinding roller (5) is taper, is divided into small end and big end.
3. the large-scale vertical roller mill that is used for superfine grinding as claimed in claim 1 is characterized in that hot blast ring (8) progressively strengthens along the opposite direction of mill direction of rotation.
CN2011205586514U 2011-12-19 2011-12-19 Large vertical roller mill for ultrafine milling Expired - Fee Related CN202387518U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205586514U CN202387518U (en) 2011-12-19 2011-12-19 Large vertical roller mill for ultrafine milling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205586514U CN202387518U (en) 2011-12-19 2011-12-19 Large vertical roller mill for ultrafine milling

Publications (1)

Publication Number Publication Date
CN202387518U true CN202387518U (en) 2012-08-22

Family

ID=46662470

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205586514U Expired - Fee Related CN202387518U (en) 2011-12-19 2011-12-19 Large vertical roller mill for ultrafine milling

Country Status (1)

Country Link
CN (1) CN202387518U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104069934A (en) * 2014-05-04 2014-10-01 上海宝钢节能环保技术有限公司 Returning device of vertical roller mill
CN105750064A (en) * 2016-03-21 2016-07-13 南通弘亚机械制造有限公司 Grinding equipment for dry type cement production line
CN105750021A (en) * 2016-03-03 2016-07-13 天津市帝标建材有限公司 Vertical mill machine for cement production
CN110253783A (en) * 2019-06-26 2019-09-20 青岛洲瑞生物制品有限公司 A kind of ultra-fine starch plastic resin preparation facilities
CN111570023A (en) * 2020-05-26 2020-08-25 镇江市蓝火环保能源有限公司 Energy-saving and environment-friendly pulverized coal production system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104069934A (en) * 2014-05-04 2014-10-01 上海宝钢节能环保技术有限公司 Returning device of vertical roller mill
CN104069934B (en) * 2014-05-04 2016-03-09 上海宝钢节能环保技术有限公司 A kind of vertical roll grinder material-returning device
CN105750021A (en) * 2016-03-03 2016-07-13 天津市帝标建材有限公司 Vertical mill machine for cement production
CN105750064A (en) * 2016-03-21 2016-07-13 南通弘亚机械制造有限公司 Grinding equipment for dry type cement production line
CN110253783A (en) * 2019-06-26 2019-09-20 青岛洲瑞生物制品有限公司 A kind of ultra-fine starch plastic resin preparation facilities
CN111570023A (en) * 2020-05-26 2020-08-25 镇江市蓝火环保能源有限公司 Energy-saving and environment-friendly pulverized coal production system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120822

Termination date: 20151219

EXPY Termination of patent right or utility model