CN202155233U - Pulverizing bin of special ultra-fine ball mill for coal with few volatile matters - Google Patents
Pulverizing bin of special ultra-fine ball mill for coal with few volatile matters Download PDFInfo
- Publication number
- CN202155233U CN202155233U CN 201120236536 CN201120236536U CN202155233U CN 202155233 U CN202155233 U CN 202155233U CN 201120236536 CN201120236536 CN 201120236536 CN 201120236536 U CN201120236536 U CN 201120236536U CN 202155233 U CN202155233 U CN 202155233U
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- storehouse
- bin
- ball mill
- coal
- fine
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Abstract
The utility model relates to a special ultra-fine high-efficiency ball mill for active lime production process of a rotary kiln burning coal with few volatile matters, in particular to a pulverizing bin of a ball mill. A left grinding material inlet and a right grinding material inlet are disposed at two ends of the pulverizing bin, a bin partition plate is fixed into the pulverizing bin, an inner cavity of the pulverizing bin is divided into a coarse powder bin and a fine powder bin by the bin partition plate, a step lining plate is fixed onto the inner wall of the coarse powder bin, and a large wavy lining plate and a small wavy lining plate are fixed into the inner wall of the fine powder bin and are sequentially distributed from left to right according to a discharge mode. The pulverizing bin of the ball mill is high in yield and low in electricity consumption, ground coal powder is ultra-fine, and requirements of an active lime production line of the rotary kiln burning the coal with few volatile matters (namely, anthracite coal) are met.
Description
Technical field
The utility model relates to the grinding storehouse that a kind of low-volatile coal burns special-purpose ultra-fine ball mill, particularly ball mill of rotary kiln active lime producing process.
Background technology
At present, the fuel that adopted of rotary kiln active lime producing process is Chinese northern high-quality bituminous coal, blast furnace gas, coal gas of converter, coke-stove gas or combination wherein.In southern area of China, southwest particularly, 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, makes that rotary kiln active lime producing process production cost is difficult to reduce.The high-quality active lime supply the market that the coal price that grows to even greater heights, well sold and in short supply fat coal supply the 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 the microfine coal of acquisition needs.But common wind is swept dress waveform liner plate or ladder lining board in the coal mill, and the steel ball that adopts 30～70mm is 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 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 bigger abrasive body, could satisfy the requirement of breaking capacity.For above-mentioned reasons, its output will descend significantly, and power consumption rises, and fineness is difficult for stable.Common wind is swept ball mill under resource situation more and more in short supply just becomes the big power consumer.
Summary of the invention
In order to overcome the shortcoming of prior art; The utility model provides the grinding storehouse of the special-purpose ultra-fine ball mill of a kind of low-volatile coal (being anthracite), and 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 technical scheme that its technical problem of the utility model solution is taked is: there is left and right abrasive material inlet at the two ends in grinding storehouse; Fixing partition panel in the grinding storehouse; Partition panel is divided into meal storehouse and fine powder storehouse with the inner chamber in grinding storehouse, and grinding machine enters the mouth out and is that meal storehouse, grinding machine exit are the fine powder storehouse.Fixed step liner plate on the inwall in meal storehouse, fixing big ripple liner plate and small ripple glaze lining board of globe on the inwall in fine powder storehouse, big ripple liner plate and small ripple glaze lining board of globe along grinding machine discharging direction successively about distribution.
Described partition panel has left and right dividing plate, and promptly partition panel is a double-decker, and there is the air vent in trumpet-shaped meal storehouse and fine powder storehouse at the center, and side is provided with backgauge comb plate to air vent in the meal storehouse.
Said left clapboard comb well format is a concentric circles, and air permeability is good, and right clapboard comb well format is radial, and screening property is good.
The section of said left clapboard is wavy, and resistance to impact is good.
The utility model is strong to the 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 rotary kiln active lime production line.Output is high, and power consumption is low.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A place enlarged drawing among the utility model Fig. 1.
The specific embodiment
Shown in accompanying drawing; There is left and right abrasive material inlet 1,8 at the two ends in grinding storehouse 12; Grinding storehouse 12 interior fixedly partition panels 4, partition panel 4 is divided into meal storehouse 3 and fine powder storehouse 6, fixed step liner plate 2 on the inwall in meal storehouse 3 with the inner chamber in grinding storehouse 12; Fixing big ripple liner plate 5 and small ripple glaze lining board of globe 7 on the inwall in fine powder storehouse 6, big ripple liner plate 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 promptly partition panel 4 is a double-decker, and there is the air vent in trumpet-shaped meal storehouse 3 and fine powder storehouse 6 at the center.Side is provided with backgauge comb plate 10 to air vent in the meal storehouse.
The comb well format of said left clapboard 9 is a concentric circles, and the comb well format of right clapboard 11 is radial.
The left section of said left clapboard 9 is wavy.
Claims (4)
1. the grinding storehouse of the special-purpose ultra-fine ball mill of a low-volatile coal; There is left and right abrasive material inlet (1,8) at the two ends in grinding storehouse (9); It is characterized in that: grinding storehouse (9) interior fixedly partition panel (4); Partition panel (4) is divided into meal storehouse (3) and fine powder storehouse (6) with the inner chamber of grinding storehouse (9); Fixed step liner plate (2) on the inwall in meal storehouse (3), fixing big ripple liner plate (5) and small ripple glaze lining board of globe (7) on the inwall of fine powder storehouse (6), big ripple liner plate (5) and small ripple glaze lining board of globe (7) along grinding machine discharging direction successively about distribution.
2. the grinding storehouse of the special-purpose ultra-fine ball mill of low-volatile coal 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 a double-decker; There is the air vent of trumpet-shaped meal storehouse (3) and fine powder storehouse (6) at the center, and side is provided with backgauge comb plate (10) to air vent in the meal storehouse.
3. the grinding storehouse of the special-purpose ultra-fine ball mill of low-volatile coal according to claim 2, it is characterized in that: the comb well format of said left clapboard (9) is a concentric circles, the comb well format of right clapboard (11) is radial.
4. the grinding storehouse of the special-purpose ultra-fine ball mill of anthracite according to claim 1, it is characterized in that: the left side of said left clapboard (9) is wavy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120236536 CN202155233U (en) | 2011-07-06 | 2011-07-06 | Pulverizing bin of special ultra-fine ball mill for coal with few volatile matters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120236536 CN202155233U (en) | 2011-07-06 | 2011-07-06 | Pulverizing bin of special ultra-fine ball mill for coal with few volatile matters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202155233U true CN202155233U (en) | 2012-03-07 |
Family
ID=45762883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120236536 Expired - Fee Related CN202155233U (en) | 2011-07-06 | 2011-07-06 | Pulverizing bin of special ultra-fine ball mill for coal with few volatile matters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202155233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861640A (en) * | 2011-07-06 | 2013-01-09 | 新兴河北工程技术有限公司 | Powder grinding bin of special superfine ball grinding mill for low-volatile coal |
| CN107185655A (en) * | 2017-06-12 | 2017-09-22 | 南京新中磁电技术工程有限公司 | A kind of novel tube mill |
-
2011
- 2011-07-06 CN CN 201120236536 patent/CN202155233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861640A (en) * | 2011-07-06 | 2013-01-09 | 新兴河北工程技术有限公司 | Powder grinding bin of special superfine ball grinding mill for low-volatile coal |
| CN107185655A (en) * | 2017-06-12 | 2017-09-22 | 南京新中磁电技术工程有限公司 | A kind of novel tube mill |
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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: 20120307 Termination date: 20140706 |
|
| EXPY | Termination of patent right or utility model |