CN102861640A - Powder grinding bin of special superfine ball grinding mill for low-volatile coal - Google Patents
Powder grinding bin of special superfine ball grinding mill for low-volatile coal Download PDFInfo
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- CN102861640A CN102861640A CN2011101885174A CN201110188517A CN102861640A CN 102861640 A CN102861640 A CN 102861640A CN 2011101885174 A CN2011101885174 A CN 2011101885174A CN 201110188517 A CN201110188517 A CN 201110188517A CN 102861640 A CN102861640 A CN 102861640A
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- lining board
- pulverizing bin
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Abstract
The invention relates to a special superfine high-efficiency ball grinding mill for a low-volatile coal fired rotary kiln activity lime production process, in particular to a powder grinding bin of a ball grinding mill. Both ends of the powder grinding bin are provided with left and right grinding material inlets; a bin partition is fixed in the powder grinding bin; an inner cavity of the powder grinding bin is divided into a coarse powder bin and a fine powder bin by the bin partition; a step lining board is fixed on the inner wall of the coarse powder bin; a large ripple lining board and a small ripple lining board are fixed on the inner wall of the fine powder bin; and the large ripple lining board and the small ripple lining board are sequentially distributed left and right according to the discharge mode. The powder grinding bin has high yield and low power consumption; ground coal powder has superfine fineness; and the requirement of a low-volatile coal (i.e. anthracite) fired rotary kiln activity lime production line can be met.
Description
Technical field
The present invention relates to the pulverizing bin that a kind of low-volatile coal burns rotary kiln active lime producing process specialized superfine ball mill, particularly ball mill.
Background technology
At present, the fuel that adopts of rotary kiln active lime producing process is north of China high-quality bituminous coal, blast furnace gas, coal gas of converter, coke-stove gas or combination wherein.In southern area of China, southwest particularly, the low-volatile coal aboundresources such as anthracite and soft coal, but its combustibility is very poor, and high-quality bituminous coal must transport from the north, so that rotary kiln active lime producing process production cost is difficult to reduce.The high-quality active lime supply market that the coal price that grows to even greater heights, well sold and in short supply fat coal supply market and demand increase day by day, low-volatile coal dust winding-up combustion technology is put on the agenda.
Low-volatile coal dust injection technology needs the ultrafine coal dust.Common wind is swept anthracite and the soft coal that ball milling can grind low-volatile, and obtains the microfine coal of needs.But common wind is swept coal and is ground in-built waveform liner plate or ladder lining board, adopts the steel ball of 30～70mm as abrasive body.All the cross section structure size of liner plate is all identical, and reverse classification often appears in steel ball in the mill, does not meet the requirement of grinding rule.When sweeping coal and grind the high anthracite of fineness requirement and colm with common wind, contradiction is more outstanding, on the one hand, because fineness requirement is high, should adopt less abrasive body, could produce more fine powder; On the other hand, the gangue in anthracite and the colm is more, should adopt larger abrasive body, could satisfy the requirement of breaking capacity.For above-mentioned reasons, its output will significantly descend, and power consumption rises, and fineness is difficult for stable.Common airswept ball mill just becomes the big power consumer in resource situation more and more in short supply.
Summary of the invention
In order to overcome the shortcoming of prior art, the invention provides the pulverizing bin of a kind of low-volatile coal (being anthracite) specialized superfine ball mill, its output is high, and power consumption is low, the fineness of pulverized coal that grinds is ultra-fine, can satisfy low-volatile coal and burn rotary kiln active lime production line demand.
The present invention solves the technical scheme that its technical problem takes: there is left and right abrasive material entrance at the two ends of pulverizing bin, the interior fixedly partition panel of pulverizing bin, partition panel is divided into meal storehouse and fine powder storehouse with the inner chamber of pulverizing bin, and the grinding machine entrance goes out to be the meal storehouse, and the grinding machine exit is the fine powder storehouse.Fixed step liner plate on the inwall in meal storehouse is fixed large corrugated liner and small ripple glaze lining board of globe on the inwall in fine powder storehouse, large corrugated liner and small ripple glaze lining board of globe distribute about successively along grinding machine discharging direction.
Described partition panel has left and right dividing plate, and namely partition panel is double-decker, and there is the air vent in trumpet-shaped meal storehouse and fine powder storehouse at the center, and air vent is provided with the backgauge grate plate in meal storehouse side.
Described left clapboard comb well format is concentric circles, and air permeability is good, and right clapboard comb well format is radial, and screening is good.
The section of described left clapboard is wavy, and resistance to impact is good.
The present invention is to the strong adaptability of ature of coal, and material is low-volatile coal dust (anthracite, soft coal or its mixing coal), and the fineness of pulverized coal that grinds is ultra-fine, satisfies anthracite and burns the rotary kiln active lime production line.Output is high, and power consumption is low.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A place enlarged drawing among Fig. 1 of the present invention.
The specific embodiment
As shown in drawings, there is left and right abrasive material entrance 1,8 at the two ends of pulverizing bin 12, pulverizing bin 12 interior fixedly partition panels 4, partition panel 4 is divided into meal storehouse 3 and fine powder storehouse 6 with the inner chamber of pulverizing bin 12, fixed step liner plate 2 on the inwall in meal storehouse 3, fix large corrugated liner 5 and small ripple glaze lining board of globe 7 on the inwall in fine powder storehouse 6, large corrugated liner 5 and small ripple glaze lining board of globe 7 distribute about successively along grinding machine discharging direction.
Described partition panel 4 has left and right dividing plate 9,11, and namely partition panel 4 is double-decker, and there is the air vent in trumpet-shaped meal storehouse 3 and fine powder storehouse 6 at the center.Air vent is provided with backgauge grate plate 10 in meal storehouse side.
The comb well format of described left clapboard 9 is concentric circles, and the comb well format of right clapboard 11 is radial.
The left section of described left clapboard 9 is wavy.
Claims (4)
1. the pulverizing bin of a low-volatile coal specialized superfine ball mill, there is a left side at the two ends of pulverizing bin (9), right abrasive material entrance (1,8), it is characterized in that: the interior fixedly partition panel (4) of pulverizing bin (9), partition panel (4) is divided into meal storehouse (3) and fine powder storehouse (6) with the inner chamber of pulverizing bin (9), fixed step liner plate (2) on the inwall in meal storehouse (3), fix large corrugated liner (5) and small ripple glaze lining board of globe (7) on the inwall in fine powder storehouse (6), large corrugated liner (5) and small ripple glaze lining board of globe (7) along grinding machine discharging direction successively about distribution.
2. the pulverizing bin of low-volatile coal specialized superfine ball mill according to claim 1, it is characterized in that: described partition panel (4) has left and right dividing plate (9,11), be that partition panel (4) is double-decker, there is the air vent of trumpet-shaped meal storehouse (3) and fine powder storehouse (6) at the center, and air vent is provided with backgauge grate plate (10) in meal storehouse side.
3. the pulverizing bin of low-volatile coal specialized superfine ball mill according to claim 2, it is characterized in that: the comb well format of described left clapboard (9) is concentric circles, the comb well format of right clapboard (11) is radial.
4. the pulverizing bin of anthracite specialized superfine ball mill according to claim 1, it is characterized in that: the left side of described left clapboard (9) is wavy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101885174A CN102861640A (en) | 2011-07-06 | 2011-07-06 | Powder grinding bin of special superfine ball grinding mill for low-volatile coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101885174A CN102861640A (en) | 2011-07-06 | 2011-07-06 | Powder grinding bin of special superfine ball grinding mill for low-volatile coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102861640A true CN102861640A (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101885174A Pending CN102861640A (en) | 2011-07-06 | 2011-07-06 | Powder grinding bin of special superfine ball grinding mill for low-volatile coal |
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| CN (1) | CN102861640A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069918A (en) * | 2014-06-18 | 2014-10-01 | 中信重工机械股份有限公司 | Efficient energy-saving tube mill |
Citations (11)
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|---|---|---|---|---|
| GB432999A (en) * | 1934-05-12 | 1935-08-07 | Ernest Newell & Company Ltd | Improvements in or relating to grinding and crushing machinery |
| DD298886A5 (en) * | 1990-06-28 | 1992-03-19 | Akad Wissenschaften Ddr | INTERIOR CLADDING FOR TUBE BALL MILLS |
| CN2180328Y (en) * | 1994-01-15 | 1994-10-26 | 李雄飞 | Drying grinder |
| CN2284647Y (en) * | 1997-05-21 | 1998-06-24 | 马克武 | Superfine cement mill |
| CN2546089Y (en) * | 2002-05-29 | 2003-04-23 | 合肥水泥研究设计院 | Coal mill with screen separating container device and grading lining board |
| CN1730154A (en) * | 2005-08-12 | 2006-02-08 | 贵阳铝镁设计研究院 | Grind grading technique for aluminum oxide raw material - monohydrallite |
| CN2761272Y (en) * | 2005-01-06 | 2006-03-01 | 合肥水泥研究设计院 | Slag micropowder tube mill |
| CN2787304Y (en) * | 2003-07-14 | 2006-06-14 | 吴绵祺 | Highly effective energy-saving grinding machine capable of controlling cement granule makeup |
| CN201216951Y (en) * | 2008-04-08 | 2009-04-08 | 安阳市德林水泥设备厂 | Powder sifting double-sifter globe mill |
| CN101823014A (en) * | 2010-03-13 | 2010-09-08 | 王正国 | Composite lining plate for two-bin overflow type ball mill |
| CN202155233U (en) * | 2011-07-06 | 2012-03-07 | 新兴河北工程技术有限公司 | Pulverizing bin of special ultra-fine ball mill for coal with few volatile matters |
-
2011
- 2011-07-06 CN CN2011101885174A patent/CN102861640A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB432999A (en) * | 1934-05-12 | 1935-08-07 | Ernest Newell & Company Ltd | Improvements in or relating to grinding and crushing machinery |
| DD298886A5 (en) * | 1990-06-28 | 1992-03-19 | Akad Wissenschaften Ddr | INTERIOR CLADDING FOR TUBE BALL MILLS |
| CN2180328Y (en) * | 1994-01-15 | 1994-10-26 | 李雄飞 | Drying grinder |
| CN2284647Y (en) * | 1997-05-21 | 1998-06-24 | 马克武 | Superfine cement mill |
| CN2546089Y (en) * | 2002-05-29 | 2003-04-23 | 合肥水泥研究设计院 | Coal mill with screen separating container device and grading lining board |
| CN2787304Y (en) * | 2003-07-14 | 2006-06-14 | 吴绵祺 | Highly effective energy-saving grinding machine capable of controlling cement granule makeup |
| CN2761272Y (en) * | 2005-01-06 | 2006-03-01 | 合肥水泥研究设计院 | Slag micropowder tube mill |
| CN1730154A (en) * | 2005-08-12 | 2006-02-08 | 贵阳铝镁设计研究院 | Grind grading technique for aluminum oxide raw material - monohydrallite |
| CN201216951Y (en) * | 2008-04-08 | 2009-04-08 | 安阳市德林水泥设备厂 | Powder sifting double-sifter globe mill |
| CN101823014A (en) * | 2010-03-13 | 2010-09-08 | 王正国 | Composite lining plate for two-bin overflow type ball mill |
| CN202155233U (en) * | 2011-07-06 | 2012-03-07 | 新兴河北工程技术有限公司 | Pulverizing bin of special ultra-fine ball mill for coal with few volatile matters |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069918A (en) * | 2014-06-18 | 2014-10-01 | 中信重工机械股份有限公司 | Efficient energy-saving tube mill |
| CN104069918B (en) * | 2014-06-18 | 2017-01-04 | 中信重工机械股份有限公司 | A kind of energy-efficient tube mill |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130109 |