CN107309032A - A kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method - Google Patents
A kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method Download PDFInfo
- Publication number
- CN107309032A CN107309032A CN201710543932.4A CN201710543932A CN107309032A CN 107309032 A CN107309032 A CN 107309032A CN 201710543932 A CN201710543932 A CN 201710543932A CN 107309032 A CN107309032 A CN 107309032A
- Authority
- CN
- China
- Prior art keywords
- coal dust
- long
- low speed
- pending
- scraper
- 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.)
- Granted
Links
- 239000002817 coal dust Substances 0.000 title claims abstract description 50
- 239000003245 coal Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010408 sweeping Methods 0.000 claims abstract description 23
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method, including installing the scraper between gap positioned at rotation conveyer and hot blast box, the blowhole on the hot blast box, and the sweeping wind pipe drawn from the blowhole are arranged at, its anti-long-pending coal dust method includes：The coal dust accumulated in gap is scraped by rotation conveyer driving scraper, while outside wind blows into the coal dust that above-mentioned steps are scraped in the rotation conveyer of low speed coal mill by entering blowhole and sweeping wind pipe.The invention provides a kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method; by setting the anti-long-pending coal dust devices such as scraper, sweeping wind pipe in low speed coal mill; it can realize that the coal dust for installing gap with hot blast box to rotation conveyer is purged in the case of non-stop-machine; the service efficiency of machine is improved, the processing safety of machine is enhanced.
Description
【Technical field】
The present invention relates to heat power plant boiler pulverized coal preparation system technical field, more particularly to a kind of anti-long-pending coal of low speed coal mill
Powder device and its anti-long-pending coal dust method.
【Background technology】
Low speed coal mill is one of thermal power plant major pant item, includes motor, reductor, big little gear, rotation
Conveyer, cylinder, hot blast box etc. are constituted, and are the main equipments of boiler coal dust burning preparation system.The raw coal that feeder conveying comes
Delivered to through low speed coal mill rotation conveyer lower half in coal-grinding machine drum body, raw coal in cylinder by with the colliding of steel ball, squeeze
Pressure, grinding become coal dust；First air enters cylinder through hot blast box, rotation conveyer hollow tube, and the coal dust ground is passed through into rotation
Turn the conveyer first half and be transported to the burning of boiler tissue.Low speed coal mill is complicated, especially rotates conveyer, has both carry defeated
Raw coal is sent, is the passage of First air and wind powder mixture again；There is 40mm clipping room with rotation conveyer end face in hot blast box
Gap, the space is dead angle area, easily accumulates coal dust.In actual use, installed for hot blast box with rotation conveyer end face in gap
The coal dust of accumulation, traditionally using carrying out manual cleaning under coal pulverizer stoppage in transit state, and traditional coal dust reset mode can not be from
Accumulated powder is fundamentally eliminated, there is significant limitation：Low speed coal mill must be shut down could bug dusting；Low speed coal mill is shut down
Reduce its performance；Hot blast box must be cut open an openning when carrying out coal dust removing and will could gathered by low speed coal mill
Coal dust clear out, after the completion of need welding restore, waste time and energy, and pulverized coal preparation system carry out fire operation there is larger safety wind
Danger.Therefore, it is necessary to research and develop a kind of device for being conducive to removing low speed coal mill accumulation coal dust.
【The content of the invention】
It is an object of the invention to provide a kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method, to solve
Above mentioned problem；The anti-long-pending coal dust device of the low speed coal mill is simple in construction, clears up the process of coal dust without shutting down or manually operating, both
The performance of machine can be improved, again can be with the safety of support personnel.
To solve above technical problem, the present invention provides following technical scheme：
A kind of anti-long-pending coal dust device of low speed coal mill, including：Between rotation conveyer and hot blast box install gap
Scraper, is arranged at the blowhole on the hot blast box, and the sweeping wind pipe drawn from the blowhole.
Further, the scraper is connected with the rotation conveyer, and the scraper is same with the rotation conveyer
Step rotation.
Further, the size of the scraper is：A length of 60-120mm, a width of 20-40mm, thickness is 2-10mm.
Further, blowhole its position of opening on the hot blast box faces the bottom of rotation conveyer end face.
Further, the aperture of the blowhole is 40mm.
Further, the sweeping wind pipe is connected by way of welding with blowhole.
Further, the sweeping wind pipe is seamless sweeping wind pipe, and its aperture is 45mm, and thickness is 1.5-5mm.
Present invention also offers a kind of anti-long-pending coal dust method of the anti-long-pending coal dust device of low speed coal mill, comprise the following steps：
S1：The scraper being located between rotation conveyer and hot blast box installation gap is driven by rotation conveyer so that scraper
With rotation conveyer synchronous rotary, the coal dust accumulated in gap is scraped；
S2：While scraper is with rotation conveyer rotation, outside wind is formed by entering blowhole and sweeping wind pipe
Sweeping wind pipe, the coal dust that above-mentioned steps are scraped is blown into the rotation conveyer of low speed coal mill all the way.
The present invention has the advantages that compared with prior art：
The present invention on low speed coal mill by setting the anti-long-pending coal dust devices such as scraper, sweeping wind pipe, in non-stop-machine feelings
It can realize that the coal dust for installing gap with hot blast box to rotation conveyer is purged under condition, improve the service efficiency of machine,
The processing safety of machine is enhanced, is conducive to promoting the use of.
【Brief description of the drawings】
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention, in the accompanying drawings：
Fig. 1 is the structural representation of the present invention.
In figure, 1 is hot blast box for rotation conveyer, 2, and 3 be scraper, and 4 be blowhole, and 5 be sweeping wind pipe.
【Embodiment】
With reference to embodiment and compare accompanying drawing the present invention is described in further detail.It is emphasized that
What the description below was merely exemplary, the scope being not intended to be limiting of the invention and its application.
A kind of anti-long-pending coal dust device of low speed coal mill, including between rotation conveyer 1 and hot blast box 2 install gap
Scraper 3, the scraper 3 is connected with the rotation conveyer 1 and with the rotation synchronous rotary of conveyer 1, the scraper 3
Size is：A length of 60-120mm, a width of 20-40mm, thickness is 2-10mm；The blowhole 4 on the hot blast box 2 is arranged at, it is opened
Hole site faces the bottom of the rotation end face of conveyer 1, and aperture is 40mm；And the sweeping wind pipe drawn from the blowhole 4
5, the sweeping wind pipe 5 is connected by way of welding with blowhole 4, and the sweeping wind pipe 5 is seamless sweeping wind pipe, its hole
Footpath is 45mm, and thickness is 1.5-5mm.
Present invention also offers the anti-long-pending coal dust method of the anti-long-pending coal dust device of a low speed coal mill, comprise the following steps：
S1：The scraper 3 installed positioned at rotation conveyer 1 and hot blast box 2 between gap is driven by rotation conveyer 1 so that
Scraper 3 scrapes the coal dust accumulated in gap with the rotation synchronous rotary of conveyer 1；
S2：While scraper 3 rotates with rotation conveyer 1, outside wind by entering blowhole 4 and sweeping wind pipe 5,
Sweeping wind pipe all the way is formed, the coal dust that above-mentioned steps are scraped is blown into the rotation conveyer 1 of low speed coal mill.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations, for person of an ordinary skill in the technical field, is not departing from
On the premise of present inventive concept, some simple deduction or replace can also be made, the present invention should be all considered as belonging to by being submitted
Claims determine scope of patent protection.
Claims (8)
1. a kind of anti-long-pending coal dust device of low speed coal mill, it is characterised in that：Including：Positioned at rotation conveyer and hot blast box clipping room
Scraper between gap, is arranged at the blowhole on the hot blast box, and the sweeping wind pipe drawn from the blowhole.
2. the anti-long-pending coal dust device of low speed coal mill according to claim 1, it is characterised in that：The scraper and the rotation are defeated
Device is sent to be connected, the scraper is with the rotation conveyer synchronous rotary.
3. the anti-long-pending coal dust device of low speed coal mill according to claim 1, it is characterised in that：The size of the scraper is：It is long
For 60-120mm, a width of 20-40mm, thickness is 2-10mm.
4. the anti-long-pending coal dust device of low speed coal mill according to claim 1, it is characterised in that：Blowhole on the hot blast box
Its position of opening faces the bottom of rotation conveyer end face.
5. the anti-long-pending coal dust device of low speed coal mill according to claim 1, it is characterised in that：The aperture of the blowhole is
40mm。
6. the anti-long-pending coal dust device of low speed coal mill according to claim 1, it is characterised in that：The sweeping wind pipe passes through welding
Mode be connected with blowhole.
7. the anti-long-pending coal dust device of low speed coal mill according to claim 1, it is characterised in that：The sweeping wind pipe is seamless
Sweeping wind pipe, its aperture is 45mm, and thickness is 1.5-5mm.
8. a kind of anti-long-pending coal dust method of the anti-long-pending coal dust device of low speed coal mill according to claim any one of 1-7, its
It is characterised by：Comprise the following steps：
S1：The scraper being located between rotation conveyer and hot blast box installation gap is driven by rotation conveyer so that scraper is with rotation
Turn conveyer synchronous rotary, scrape the coal dust accumulated in gap；
S2：While scraper is with rotation conveyer rotation, outside wind is formed all the way by entering blowhole and sweeping wind pipe
Sweeping wind pipe, the coal dust that above-mentioned steps are scraped is blown into the rotation conveyer of low speed coal mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543932.4A CN107309032B (en) | 2017-07-05 | 2017-07-05 | A kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543932.4A CN107309032B (en) | 2017-07-05 | 2017-07-05 | A kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107309032A true CN107309032A (en) | 2017-11-03 |
| CN107309032B CN107309032B (en) | 2019-06-18 |
Family
ID=60180592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710543932.4A Active CN107309032B (en) | 2017-07-05 | 2017-07-05 | A kind of anti-long-pending coal dust device of low speed coal mill and its anti-long-pending coal dust method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107309032B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB658990A (en) * | 1947-06-06 | 1951-10-17 | Smidth & Co As F L | Improvements relating to rotary mills or drums |
| CA1065293A (en) * | 1975-05-14 | 1979-10-30 | Dominion Engineering Works Limited | Grinding mill diaphragm discharge system |
| CN1053563A (en) * | 1990-01-23 | 1991-08-07 | 国家建筑材料工业局合肥水泥研究设计院 | Cylindrical-roll grinder |
| CN201823572U (en) * | 2010-05-10 | 2011-05-11 | 湖南亿泰环保科技股份有限公司 | Double-inlet and double-outlet steel ball type coal mill |
| CN203253487U (en) * | 2012-12-04 | 2013-10-30 | 上海意丰机电科技开发有限公司 | Self-aligning screw propeller |
| CN104785333A (en) * | 2015-04-21 | 2015-07-22 | 湖南红宇耐磨新材料股份有限公司 | Periodic purging device and method for coal mill |
| CN205613499U (en) * | 2016-04-21 | 2016-10-05 | 江西省金锂科技股份有限公司 | Ball mill with inner wall clearance function |
-
2017
- 2017-07-05 CN CN201710543932.4A patent/CN107309032B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB658990A (en) * | 1947-06-06 | 1951-10-17 | Smidth & Co As F L | Improvements relating to rotary mills or drums |
| CA1065293A (en) * | 1975-05-14 | 1979-10-30 | Dominion Engineering Works Limited | Grinding mill diaphragm discharge system |
| CN1053563A (en) * | 1990-01-23 | 1991-08-07 | 国家建筑材料工业局合肥水泥研究设计院 | Cylindrical-roll grinder |
| CN201823572U (en) * | 2010-05-10 | 2011-05-11 | 湖南亿泰环保科技股份有限公司 | Double-inlet and double-outlet steel ball type coal mill |
| CN203253487U (en) * | 2012-12-04 | 2013-10-30 | 上海意丰机电科技开发有限公司 | Self-aligning screw propeller |
| CN104785333A (en) * | 2015-04-21 | 2015-07-22 | 湖南红宇耐磨新材料股份有限公司 | Periodic purging device and method for coal mill |
| CN205613499U (en) * | 2016-04-21 | 2016-10-05 | 江西省金锂科技股份有限公司 | Ball mill with inner wall clearance function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107309032B (en) | 2019-06-18 |
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