CN201889227U - Anti-clogging feeding device of vertical roller mill - Google Patents
Anti-clogging feeding device of vertical roller mill Download PDFInfo
- Publication number
- CN201889227U CN201889227U CN 201020633647 CN201020633647U CN201889227U CN 201889227 U CN201889227 U CN 201889227U CN 201020633647 CN201020633647 CN 201020633647 CN 201020633647 U CN201020633647 U CN 201020633647U CN 201889227 U CN201889227 U CN 201889227U
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- middle shell
- feeder
- vertical roller
- spiral feeder
- roller mill
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Abstract
The utility model relates to an anti-clogging feeding device of a vertical roller mill; the vertical roller mill comprises a middle shell body, a milling stone and a powder concentrator; the powder concentrator comprises a lower cone body arranged in the middle shell body; the lower part of the lower cone body is provided with the milling stone; the anti-clogging feeding device of the vertical roller mill is characterized by comprising a platform and a spiral feeder which are fixed on the middle shell body; one end of the spiral feeder is fixed on the platform, and the other end of the spiral feeder passes through the middle shell body, enters the lower cone body and is fixedly connected with the same; a discharge port of the spiral feeder is arranged right above the milling stone; a feeding opening of the spiral feeder is arranged outside the middle shell body; and a driving reducing motor is connected onto the spiral feeder. In the anti-clogging feeding device of the vertical roller mill, the spiral feeder directly conveys materials to the center of the milling stone, simultaneously an air locking function is realized, so that material feeding is thoroughly separated from material returning, dry materials and wet materials are conveyed separately, and the clogging problem in a high-moisture material feeding link is solved.
Description
Technical field
The utility model relates to a kind of building materials, power plant, mine, the drawing-in device of pulverized coal preparation system in the industries such as chemical industry, particularly a kind of anti-blocking drawing-in device of vertical roller grinder.
Background technology
The vertical roller grinder grinding system comprises source material delivery system, grinding system, air feed system, external circulating system, heating system, several parts such as finished product gathering system and warehousing system.Grinding system carries out grinding in the lump with the raw material of source material delivery system feeding and the feed back of external circulating system in mill, raw material enters grinding machine inside by airlock and tremie pipe.
Airlock comprises the twice flap valve, three road flap valves, and weighted valve, rotary feeder etc., the tremie pipe that is attached thereto comprises the side tremie pipe, center tremie pipe etc.; Which kind of mode no matter; the effect that airlock plays is exactly to lock wind action; all need tremie pipe that material is sent to grinding machine inside; because the uncertainty of attributes such as material moisture; especially tremie pipe and airlock clogging when higher, take place in moisture in viscous material such as the wet ash of slag, fine coal easily, cause frequent shutdown maintenance; block clearing is difficulty relatively, causes problems such as operation rate is low.The putty problem becomes the bottleneck that grinding machine uses producer's ordinary production, brought very big economic loss, well-known grinding machine producer has all proposed solution separately both at home and abroad, comprise the center cutting mode, the side blanking adds air bubble, changes the tremie pipe shape, and dried wet feed separately waits measure, though can alleviate putty to a certain extent, the material poor effect higher to moisture.
Summary of the invention
The utility model provides a kind of anti-blocking drawing-in device of vertical roller grinder for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: the anti-blocking drawing-in device of a kind of vertical roller grinder, described vertical roller grinder comprises middle shell, mill and powder concentrator, described powder concentrator comprises the lower cone that is positioned at described middle shell, it below the described lower cone described mill, this drawing-in device comprises platform and the screw(-type) feeder that is fixed on the described middle shell, one end of described screw(-type) feeder is fixed on the described platform, the other end of described screw(-type) feeder penetrates described middle shell and enters in the described lower cone, and it is affixed with it, the discharging opening of described screw(-type) feeder be positioned at described mill directly over, the charging aperture of described screw(-type) feeder is positioned at the outside of described middle shell, is connected with the driving reducing motor on the described screw(-type) feeder.
Advantage and the good effect that the utlity model has are: screw(-type) feeder directly is delivered to the mill center with material, has lock wind function simultaneously, new feeding and feed back are thoroughly separated, realized the separately conveying of dried wet feed, solved the putty problem of high moisture material feeding link, thoroughly changed the feeding pattern that airlock adds tremie pipe, tremie pipe in the middle of saving, eliminate the putty point, thoroughly solved grinding machine putty problem.And shortened the distance of feed system and grinding machine, reduced the height of feed conveying system, reduced and build usage space, reduced the civil engineering cost; The utility model is simple in structure, and processing and manufacturing is easy, dismounting and easy to adjust and make and maintenance with low cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, platform, 2, reducing motor, 3, charging aperture, 4, screw(-type) feeder, 5, lower cone, 6, middle shell, 7, discharging opening.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, vertical roller grinder comprises middle shell 6, mill and powder concentrator, and powder concentrator comprises the lower cone 5 that is positioned at middle shell 6, is mill below the lower cone 5.The anti-blocking drawing-in device of vertical roller grinder comprises platform 1 and the screw(-type) feeder 4 that is fixed on the middle shell 6, one end of screw(-type) feeder 4 is fixed on the platform 1, the other end of screw(-type) feeder 4 penetrates middle shell 6 and enters in the lower cone 5, and it is affixed with it, the discharging opening 7 of screw(-type) feeder be positioned at mill directly over, the charging aperture 3 of screw(-type) feeder is positioned at the outside of middle shell 6, is connected with on the screw(-type) feeder 4 to drive reducing motor 2, drives reducing motor 2 and is connected with screw(-type) feeder 4 by shaft coupling.
Operation principle of the present utility model:
After the grinding machine operation, new feeding passes through conveying device, feeding mouth via screw(-type) feeder 4 enters grinding machine, from discharging opening material is delivered to mill central authorities, are rolling grinding roller and cooperating of mill down, finished product is dried via hot blast, sorting, and collect warehouse-in, the underproof material that sub-elects is slipped to mill central authorities along lower cone 5 inwalls, participates in grinding again.Dried like this wet feed thoroughly separates, and has prevented from effectively that dried wet feed is mixed to harden.
Claims (1)
1. anti-blocking drawing-in device of vertical roller grinder, described vertical roller grinder comprises middle shell, mill and powder concentrator, described powder concentrator comprises the lower cone that is positioned at described middle shell, it below the described lower cone described mill, it is characterized in that, this drawing-in device comprises platform and the screw(-type) feeder that is fixed on the described middle shell, one end of described screw(-type) feeder is fixed on the described platform, the other end of described screw(-type) feeder penetrates described middle shell and enters in the described lower cone, and it is affixed with it, the discharging opening of described screw(-type) feeder be positioned at described mill directly over, the charging aperture of described screw(-type) feeder is positioned at the outside of described middle shell, is connected with the driving reducing motor on the described screw(-type) feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020633647 CN201889227U (en) | 2010-11-30 | 2010-11-30 | Anti-clogging feeding device of vertical roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020633647 CN201889227U (en) | 2010-11-30 | 2010-11-30 | Anti-clogging feeding device of vertical roller mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889227U true CN201889227U (en) | 2011-07-06 |
Family
ID=44218702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020633647 Expired - Fee Related CN201889227U (en) | 2010-11-30 | 2010-11-30 | Anti-clogging feeding device of vertical roller mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201889227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776721A (en) * | 2015-04-16 | 2015-07-15 | 天津水泥工业设计研究院有限公司 | Method and device for controlling smoke chamber skinning in cement production line |
-
2010
- 2010-11-30 CN CN 201020633647 patent/CN201889227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776721A (en) * | 2015-04-16 | 2015-07-15 | 天津水泥工业设计研究院有限公司 | Method and device for controlling smoke chamber skinning in cement production line |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20181130 |