CN203360283U - Outer circulation final grinding system of cement vertical mill - Google Patents
Outer circulation final grinding system of cement vertical mill Download PDFInfo
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- CN203360283U CN203360283U CN2013204603649U CN201320460364U CN203360283U CN 203360283 U CN203360283 U CN 203360283U CN 2013204603649 U CN2013204603649 U CN 2013204603649U CN 201320460364 U CN201320460364 U CN 201320460364U CN 203360283 U CN203360283 U CN 203360283U
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- vertical mill
- separating machine
- powder separating
- bucket elevator
- outer circulation
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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
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Abstract
An outer circulation final grinding system of a cement vertical mill comprises a belt conveyor, a bucket elevator, a steady-flow bin, the vertical mill, a dust collector, a blower and a chute, wherein the belt conveyor is used for transporting in a material; and the chute is used for transporting out a fine powder product material. The system is characterized in that the bucket elevator, a coarse powder concentrator, the steady-flow bin and the vertical mill are connected sequentially, so that a circulation system is formed; the bucket elevator, the coarse powder concentrator, a fine powder concentrator, the steady-flow bin and the vertical mill are connected sequentially, so that another circulation system is formed; the bucket elevator, the coarse powder concentrator, the fine powder concentrator, the dust collector and the blower are connected sequentially; a powder concentration device is arranged outside the vertical mill and is formed by connecting the coarse powder concentrator and the fine powder concentrator in series; and the coarse powder concentrator comprises three air inlet pipelines which are connected in parallel, one pipeline is connected with a heat source, another pipeline is connected with cold air, and the rest pipeline is connected with a dust collection air inlet of the vertical mill.
Description
Technical field
The utility model relates to a kind of cement grinding system, relates in particular to a kind of outer circulation cement vertical mill final grinding system.
Background technology
In the cement grinding field, tuber grinder due to capacity usage ratio and mill efficiency low, aspect energy-conservation grinding, progressively by efficient milling equipment, replaced.Vertical Mill is a kind of bed of material milling equipment, and mill efficiency is higher.The Vertical Mill final grinding system is used in a large number aspect cement slurry grinding and pulverized coal preparation, many cases are also arranged aspect cement grinding, cement prepared by the Vertical Mill final grinding system that fears are entertained that in the past needs that water-based is high, the pattern sphericity is low and the unfavorable performance such as size distribution is too concentrated, progressively by the cement work person, with practice, overthrown, the cement ground with the Vertical Mill final grinding system does not almost have significant difference at the cement that needs the aspect such as water-based, intensity and concrete adaptability and ball mill to grind.
The energy conservation characteristic of Vertical Mill final grinding system by people cognition, compared with the pre-grinding of roll squeezer, combination grinding and half final grinding system and other Ball Mill Systems with pre-grinding, the electricity saving performance of the whole grinding of Vertical Mill is more superior.
The Vertical Mill that the Vertical Mill final grinding system makes at present mostly is the Vertical Mill that carries powder separating machine, Vertical Mill integrates grinding, selects powder, control certain wind speed in Vertical Mill, fine powder after grinding is taken away upward by wind in Vertical Mill, select finished product through built-in powder separating machine, the coarse particles that the coarse particles that the wind band is not walked and powder separating machine are selected returns to mill and continues grinding.It is larger because the nozzle ring wind speed of Vertical Mill own is higher, Vertical Mill is processed air quantity, the Vertical Mill resistance and the air quantity that cause carrying powder separating machine are all larger, make the power consumption of internal-circulation type Vertical Mill final grinding system higher, compare with roll squeezer, the pre-grinding of Vertical Mill or half final grinding system, power savings is not too obvious.
Powder separating machine is placed in outside Vertical Mill, and the powder after vertical mill grinding promotes the feeding powder separating machine by gravity, compared with high-drag, all relies on the built-in vertical mill system of powder separating machine of wind-power lifting fine powder more to economize on electricity.Directly powder separating machine shifted out to Vertical Mill, use other powder separating machines instead and carry out when mill is outer to be selected powder and collect finished product, Vertical Mill has also lost hot-wind drying function, and when cement blended material used or retardant moisture content, when larger, this Vertical Mill just is difficult to adapt to.
How to utilize gravity to promote the Substitute For Partial airlift, also reduce and select powder blast and air quantity to realize the energy saving of Vertical Mill outer circulation final grinding system, possess again certain drying function? the utility model is exactly the whole grinding energy saving of integrated Vertical Mill outer circulation and drying function in the whole grinding of a kind of cement vertical mill of one system the problems referred to above certainly.
The utility model content
Provide a kind of energy-conservation, outer circulation cement vertical mill final grinding system with certain drying function for above problem the utility model.
Provide a kind of outer circulation cement vertical mill final grinding system in order to overcome the above problems the utility model, it is characterized in that: comprise conveyor, bucket elevator, current stabilization storehouse, Vertical Mill, dust-precipitator, blower fan, skewed slot; Conveyor is for transporting material, and skewed slot is for transporting powder material; Bucket elevator, meal powder separating machine, current stabilization storehouse, Vertical Mill are connected successively, form a recycle system; Bucket elevator, meal powder separating machine, meticulous powder separating machine, current stabilization storehouse, Vertical Mill are connected successively, form a recycle system; Bucket elevator, meal powder separating machine, meticulous powder separating machine, dust-precipitator, blower fan are connected successively; Vertical Mill is provided with opening for feed, discharge port, the air port of gathering dust; Powder selection device is placed in outside Vertical Mill, by meal powder separating machine and meticulous powder separating machine, is in series, and meal powder separating machine intake stack is composed in parallel by three tunnels, and a road connects thermal source, and a road connects air cold wind, and a road connects the air port of gathering dust of Vertical Mill.The external reduction of the utility model powder selection device selects powder resistance and part air quantity, and the blower fan that makes powder selection device arrange later all reduces to some extent on pressure head and air quantity, thereby the power consumption of reduction system blower fan used makes system more energy-conservation.The meal powder separating machine is connected with thermal source, possesses the drying materials function, makes this grinding system adaptation and range of application wider.
As another kind of improvement the of the present utility model, described Vertical Mill itself is without powder separating machine, and opening for feed is arranged on the Vertical Mill top, discharge port is arranged on the Vertical Mill side-lower, and the air port of gathering dust is located at the Vertical Mill top, and hot-wind inlet is located at below in Vertical Mill.Described Vertical Mill also is provided with hot-wind inlet, and described hot-wind inlet is connected with thermal source.The hot gas that thermal source described in the utility model provides below in Vertical Mill enters Vertical Mill, the material fallen with the Vertical Mill top carries out heat exchange, realize hot gas to the auxiliary oven dry of material and keep negative pressure operation (reducing the Vertical Mill dust pollution), thermal source used can be provided or from industrial hot waste gas by hotblast stove.
As another kind of improvement the of the present utility model, be respectively equipped with heat source valve on three road intake stack of described meal powder separating machine, the air cold blast valve, tuyere valve gathers dust.Can effectively control and regulate air quantity.
As another kind of improvement the of the present utility model, described conveyor, bucket elevator, meal powder separating machine are connected successively; Conveyor directly will feed the meal powder separating machine through bucket elevator from the material of proportioning station.The utility model can be realized material oven dry simultaneously in meal powder separating machine and Vertical Mill, in the meal powder separating machine, mainly dries, and assists oven dry in Vertical Mill.
As another kind of improvement the of the present utility model, described conveyor is connected with Vertical Mill, described conveyor directly will be closed by Vertical Mill opening for feed feeding Vertical Mill or heat source valve from the material of proportioning station, and conveyor directly will feed Vertical Mill by the Vertical Mill opening for feed from the material of proportioning station.This scheme is applicable to the lower cement raw material of moisture content, and fresh material elder generation grinding in Vertical Mill becomes the fine powder body, can improve the fine powder amount that powder selection device is selected.
As another kind of improvement the of the present utility model, the raw material of powdery directly feeds thick powder separating machine, directly by meticulous powder separating machine, elects the parts of fine raw material as finished product.This scheme can alleviate grinding amount and the grinding burden of Vertical Mill, thereby improves system throughput and reduce the system grinding pow consumption.
The accompanying drawing explanation
The schematic diagram that Fig. 1 is the utility model system;
Fig. 2 is the system schematic that the utility model improves I;
Fig. 3 is the system schematic that the utility model improves II;
Fig. 4 is the system schematic that the utility model improves III.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figures 1 to 4, the utility model provides a kind of outer circulation cement vertical mill final grinding system, comprises conveyor 1, bucket elevator 2, current stabilization storehouse 4, Vertical Mill 5, dust-precipitator 7, blower fan 8, skewed slot 9; Conveyor 1 is for transporting material, and skewed slot 9 is for transporting powder material; Bucket elevator 2, meal powder separating machine 3, current stabilization storehouse 4, Vertical Mill 5 are connected successively, form a recycle system; Bucket elevator 2, meal powder separating machine 3, meticulous powder separating machine 6, current stabilization storehouse 4, Vertical Mill 5 are connected successively, form a recycle system; Bucket elevator 2, meal powder separating machine 3, meticulous powder separating machine 6, dust-precipitator 7, blower fan 8 are connected successively; Vertical Mill 5 is provided with opening for feed 5-3, discharge port 5-4, air port 5-1 gathers dust; Powder selection device is placed in outside Vertical Mill 5, by meal powder separating machine 3 and meticulous powder separating machine 6, is in series, and meal powder separating machine 3 intake stack are composed in parallel by three tunnels, and a road connects thermal source 10， mono-tunnel and connects the air port 5-1 that gathers dust that air cold wind 12， mono-tunnel connects Vertical Mill 5.
The utility model powder separating machine is different from the built-in powder separating machine of Vertical Mill, the external reduction of powder selection device selects powder resistance and part air quantity, the blower fan that makes powder selection device arrange later all reduces to some extent on pressure head and air quantity, thereby the power consumption of reduction system blower fan used makes system more energy-conservation.Powder selection device is placed in outside Vertical Mill 5, goes out grind materials and promotes the Substitute For Partial airlift by gravity, can realize certain energy-saving effect.Meal powder separating machine 3 is connected with thermal source 10, possesses the drying materials function, makes this grinding system adaptation and range of application wider.
Be respectively equipped with heat source valve 13 on three road intake stack of described meal powder separating machine 3, air cold blast valve 14, the tuyere valve 15 that gathers dust, can control and regulate air quantity.
As shown in Figure 1, described conveyor 1 directly will feed meal powder separating machines 3 through bucket elevator 2 from the material of proportioning station, to mill feed material, can realize pre-treatment, increase adaptation and the range of application of system.Meal powder separating machine 3 intake stack pass into the hot blast that thermal source 10 provides, and after 3 li of meal powder separating machines complete preliminary oven dry and select powder, through current stabilization storehouse 4 feeding Vertical Mills 5, are carrying out grinding.This scheme is applicable to the higher cement raw material of moisture content.This scheme can realize that material dries 5 li of meal powder separating machine 3 and Vertical Mills simultaneously, 3 li of meal powder separating machines, mainly dries, and 5 li of Vertical Mills, assists oven dry.
As shown in Figure 2, described Vertical Mill 5 is own, and without powder separating machine, opening for feed 5-3 is arranged on Vertical Mill 5 tops, discharge port 5-4 is arranged on Vertical Mill 5 side-lowers, and the air port 5-1 that gathers dust is located at Vertical Mill 5 tops.Described Vertical Mill 5 also is provided with hot-wind inlet 5-2, and described hot-wind inlet 5-2 is connected with thermal source 11.The Vertical Mill that Vertical Mill described in the utility model is top charging, side-lower discharging, hot-wind inlet is located at below in Vertical Mill, the air port of gathering dust is located at Vertical Mill top, hot-wind inlet is connected with thermal source, the hot gas that thermal source provides below in Vertical Mill enters Vertical Mill, the material fallen with Vertical Mill top carries out heat exchange, realizes hot gas to the auxiliary oven dry of material and keeps negative pressure operation (reducing the Vertical Mill dust pollution), and thermal source used can be provided or from industrial hot waste gas by hotblast stove.
As shown in Figure 3, as another kind of improvement the of the present utility model, described conveyor 1 directly will feed Vertical Mill 5 by Vertical Mill opening for feed 5-3 from the material of proportioning station, and material feeds powder selection device again and selected the powder classification and again dry after 5 li of Vertical Mills complete preliminary grinding.When material moisture content hour, heat source valve 13 can be closed.This scheme is applicable to the lower cement raw material of moisture content, and fresh material first becomes the fine powder body at the inner grinding of Vertical Mill (5), can improve the fine powder amount that powder selection device is selected.
As described in Figure 4, as another kind of improvement the of the present utility model, the raw material 16 (as flyash) of powdery can directly feed meal powder separating machine 3, select the parts of fine finished granule by meticulous powder separating machine 6, with grinding amount and the grinding burden that alleviates Vertical Mill 5, thereby improve system throughput and reduce the system grinding pow consumption; When certain blended material of cement has been processed to finished product fine powder body or superfine powder (slag, steel-making slag powder etc.), can directly mix in the skewed slot 9 of dust-precipitator 7 back.
The foregoing is only preferred embodiment of the present utility model, be not restricted to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present utility model.
Claims (6)
1. an outer circulation cement vertical mill final grinding system, comprise conveyor (1), bucket elevator (2), current stabilization storehouse (4), Vertical Mill (5), dust-precipitator (7), blower fan (8), skewed slot (9); Conveyor (1) is for being transported into material, and skewed slot (9) is for transporting the fine powder finished product materials; It is characterized in that: bucket elevator (2), meal powder separating machine (3), current stabilization storehouse (4), Vertical Mill (5) are connected successively, form a recycle system; Bucket elevator (2), meal powder separating machine (3), meticulous powder separating machine (6), current stabilization storehouse (4), Vertical Mill (5) are connected successively, form a recycle system; Bucket elevator (2), meal powder separating machine (3), meticulous powder separating machine (6), dust-precipitator (7), blower fan (8) are connected successively; Powder selection device is placed in outside Vertical Mill (5), by meal powder separating machine (3) and meticulous powder separating machine (6), is in series; Meal powder separating machine (3) intake stack is composed in parallel by three tunnels, and a road connects thermal source (10), and a road connects air cold wind (12), and a road connects the air port of gathering dust (5-1) of Vertical Mill (5).
2. a kind of outer circulation cement vertical mill final grinding system according to claim 1, it is characterized in that: described Vertical Mill (5) itself is without powder separating machine, opening for feed (5-3) is arranged on Vertical Mill (5) top, discharge port (5-4) is arranged on Vertical Mill (5) side-lower, and the air port of gathering dust (5-1) is located at Vertical Mill (5) top.
3. a kind of outer circulation cement vertical mill final grinding system according to claim 1 and 2, it is characterized in that: described Vertical Mill (5) also is provided with hot-wind inlet (5-2), be arranged in Vertical Mill (5) below, described hot-wind inlet (5-2) is connected with thermal source (11).
4. a kind of outer circulation cement vertical mill final grinding system according to claim 1, is characterized in that: be respectively equipped with heat source valve (13) on three road intake stack of described meal powder separating machine (3), air cold blast valve (14), the tuyere valve that gathers dust (15).
5. a kind of outer circulation cement vertical mill final grinding system according to claim 1 is characterized in that: described conveyor (1), bucket elevator (2), meal powder separating machine (3) are connected successively; Conveyor (1) directly will feed meal powder separating machine (3) through bucket elevator (2) from the material of proportioning station.
6. a kind of outer circulation cement vertical mill final grinding system according to claim 1, it is characterized in that: described conveyor (1) is connected with Vertical Mill (5); Conveyor (1) directly will feed Vertical Mill (5) by Vertical Mill opening for feed (5-3) from the material of proportioning station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204603649U CN203360283U (en) | 2013-07-30 | 2013-07-30 | Outer circulation final grinding system of cement vertical mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204603649U CN203360283U (en) | 2013-07-30 | 2013-07-30 | Outer circulation final grinding system of cement vertical mill |
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| Publication Number | Publication Date |
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| CN203360283U true CN203360283U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204603649U Withdrawn - After Issue CN203360283U (en) | 2013-07-30 | 2013-07-30 | Outer circulation final grinding system of cement vertical mill |
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| CN (1) | CN203360283U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342482A (en) * | 2013-07-30 | 2013-10-09 | 南京凯盛国际工程有限公司 | External-circulation cement finish grinding system for vertical mill |
| CN104211312A (en) * | 2014-09-19 | 2014-12-17 | 南京凯盛国际工程有限公司 | Cement outer-circulating semi-finish grinding system of vertical mill |
| CN105080690A (en) * | 2015-08-12 | 2015-11-25 | 南京圣火环境科技有限公司 | Vertical roller grinding bypass grading drying raw material preparation system and technology |
| CN109174409A (en) * | 2018-08-31 | 2019-01-11 | 江苏鹏飞集团股份有限公司 | The flyash System of Ultra Thin Power Rubbing that multiple stage circulation is processed and broken up in advance |
-
2013
- 2013-07-30 CN CN2013204603649U patent/CN203360283U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342482A (en) * | 2013-07-30 | 2013-10-09 | 南京凯盛国际工程有限公司 | External-circulation cement finish grinding system for vertical mill |
| CN104211312A (en) * | 2014-09-19 | 2014-12-17 | 南京凯盛国际工程有限公司 | Cement outer-circulating semi-finish grinding system of vertical mill |
| CN105080690A (en) * | 2015-08-12 | 2015-11-25 | 南京圣火环境科技有限公司 | Vertical roller grinding bypass grading drying raw material preparation system and technology |
| CN105080690B (en) * | 2015-08-12 | 2018-06-08 | 南京圣火环境科技有限公司 | A kind of vertical roller grinder bypass classification drying raw material preparation system and technique |
| CN109174409A (en) * | 2018-08-31 | 2019-01-11 | 江苏鹏飞集团股份有限公司 | The flyash System of Ultra Thin Power Rubbing that multiple stage circulation is processed and broken up in advance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20141015 |
|
| RGAV | Abandon patent right to avoid regrant |