CN104759412B - Coal pulverizer scalable dynamic rotary separator - Google Patents
Coal pulverizer scalable dynamic rotary separator Download PDFInfo
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- CN104759412B CN104759412B CN201510190904.XA CN201510190904A CN104759412B CN 104759412 B CN104759412 B CN 104759412B CN 201510190904 A CN201510190904 A CN 201510190904A CN 104759412 B CN104759412 B CN 104759412B
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- Prior art keywords
- stator blade
- coal
- bolt
- coal pulverizer
- dynamic rotary
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- 239000003245 coal Substances 0.000 title claims abstract description 37
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 4
- -1 stator blade Sheet Substances 0.000 claims 1
- 239000002817 coal dust Substances 0.000 abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 239000003500 flue dust Substances 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011044 inertial separation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
The present invention relates to a kind of coal dust classifier, a kind of coal pulverizer scalable dynamic rotary separator for coal pulverizer.Being characterized in: described drive division bottom is provided with allotter, inside is connected with hollow axle, and allotter bottom is connected with described housing cover, and described hollow axle is connected with described starting taper；Starting taper is provided with described moving vane.Being provided with coal spout in described starting taper, coal spout is connected with described ceramic liner.Described stator blade bobbin upper end is six prisms, and described elastic cylindrical pin limits needle dial after stator blade bobbin, and the described stator blade bobbin other end is connected through stator blade is fixing by bolt after case lid plate hole.The separator of more fine breeze is isolated from coal dust.There is increase pulverizer capacity, improve the coal dust uniformity thus reach to improve boiler combustion efficiency, the characteristic of reduction unburned carbon in flue dust.These can reach to improve fineness of pulverized coal and uniformity index, is finally reached raising boiler combustion efficiency, reduces the purpose of unburned carbon in flue dust.
Description
Technical field
The present invention relates to a kind of coal dust classifier, a kind of coal pulverizer scalable for coal pulverizer
Dynamic rotary separator.
Background technology
Through State Patent Office's query and search, being found to have an Authorization Notice No. is CN203875010, name
Being referred to as a kind of high-efficiency dynamic separator, it is structurally characterized in that: static vane and multiple exit dispensing arrangement,
Can not play and efficiently separate thick, fine powder effect.Fineness of pulverized coal improves, and pulverizer capacity declines, and
Output drop rate is far longer than fineness increase rate, and structure is complicated.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, with low cost, simple to operate, maintenance side
Just, thick, the coal pulverizer scalable dynamic rotary separator of fine powder can be efficiently separated.The mesh of the present invention
The described drive division bottom that is achieved in that be provided with allotter, internal be connected with hollow axle, divide
Orchestration bottom is connected with described housing cover, and described hollow axle is connected with described starting taper；Starting taper
It is provided with described moving vane；Described stator blade bobbin upper end is six prisms, described elastic cylinder
Sell after stator blade bobbin, limit needle dial, after the described stator blade bobbin other end passes case lid plate hole
Connected through stator blade is fixing by bolt；Described cylindrical screw through needle dial, sleeve pipe, pointer with
Housing cover tapped blind hole connects, and bolt is connected through stator blade bobbin and stator blade are fixing.Described leads
Being provided with coal spout in cone, coal spout is connected with described ceramic liner.Bolt is through described support shaft even
Connecing stator blade, described support shaft coordinates with axle bed czermak space, and support shaft bottom is equiped with packing ring, axle
Seat ring is connected with the described powder cone that returns, and the described powder cone inner surface that returns is lined with wear-resistant ceramic.Described
Housing is connected with bolt, and bolt is connected through described housing cover and nut are fixing.Described stator blade
Sheet adjustable angle, adjusting range is 45 °～70 °, and described moving vane rotating speed is adjustable, adjusting range
For 30rpm～300rpm, stator blade bobbin and axle bed matched in clearance, gap is 0.01mm～2mm.This
The advantage that relates to of invention is: simple in construction, with low cost, simple to operate, easy to maintenance.From coal dust
Isolate the separator of more fine breeze.Have increase pulverizer capacity, improve the coal dust uniformity thus reach
To improving boiler combustion efficiency, reduce the characteristic of unburned carbon in flue dust.Coal pulverizer scalable dynamic rotary divides
From device, replace multiple exit dispenser location with dynamic impeller, increase on the basis of original static separation
The function of one Dynamic Separation, qualified coal dust is separated discharge faster, decreases separator and produces
Recirculation coal dust.The present invention can realize wheel speed regulation, it is possible to make coal dust Gravity Separation,
Clash into separation, be folded under the effect such as inertial separation and centrifugal force pressure separation, in mill under circulating ratio
Fall, flowing resistance does not increases, and concurrently separates device stator blade scalable, and these can reach to improve coal
Powder fineness and uniformity index, be finally reached raising boiler combustion efficiency, reduces the mesh of unburned carbon in flue dust
's.
Accompanying drawing explanation
Fig. 1 is present configuration principle schematic front view；Fig. 2 is the quiet of partial enlarged drawing A of the present invention
The structural principle schematic diagram that sharf is connected with axle bed；Fig. 3 is the support of partial enlarged drawing B of the present invention
The structural principle schematic diagram that axle coordinates with axle bed ring；Fig. 4 is the hollow axle of partial enlarged drawing C of the present invention
With starting taper, the structural principle schematic diagram of coal spout；Fig. 5 is starting taper and the moving vane of invention
The structural principle schematic diagram connected.
Detailed description of the invention
Comprise drive division 1, coal spout 2, separator flour extraction pipe 3, allotter 4, housing 5, stator blade
Axle 6, axle bed 7, moving vane 8, return powder cone 9, wear-resistant ceramic 10, stator blade 11, ceramic liner 12,
Hollow axle 13, housing cover 14, starting taper 15, elastic cylindrical pin 16, needle dial 17, pointer 18,
Sleeve pipe 19, bolt 21, support shaft 22, nut 26, it is characterised in that: described drive division 1 time
Portion is provided with allotter 4, and allotter 4 bottom is connected with described housing cover 14, described hollow axle
13 are connected with described starting taper 15；Starting taper 15 is provided with described moving vane 8.Described stator blade
Axle 6 upper end is six prisms, and described elastic cylindrical pin 16 limits needle dial after stator blade bobbin 6
17, described stator blade bobbin 6 other end is connected through stator blade is fixing by bolt after case lid plate hole
Connect.Described stator blade bobbin 6 other end is passed stator blade by bolt 21 behind housing cover 14 hole
11 fixing connections.Described cylindrical screw 20 is through needle dial 17, sleeve pipe 19, pointer 18 and housing
Cover plate 14 tapped blind hole connects, and bolt 21 is connected through stator blade bobbin 6 is fixing with stator blade 11.Institute
Being provided with coal spout 2 in the starting taper 15 stated, coal spout 2 is connected with described ceramic liner 12.Bolt 21
Connecting stator blade 11 through described support shaft 22, described support shaft 22 is joined with axle bed ring 23 gap
Closing, support shaft 22 bottom is equiped with packing ring 24, and axle bed ring 23 is connected with the described powder cone 9 that returns,
Described time powder is bored 9 inner surfacies and is lined with wear-resistant ceramic 10.Described housing 5 is connected with bolt 21, spiral shell
Bolt 21 is connected through described housing cover 14 is fixing with nut 26.Described stator blade 11 angle
Adjustable, adjusting range is 45 °～70 °, and described moving vane 8 rotating speed is adjustable, and adjusting range is
30rpm～300rpm, stator blade bobbin 6 and axle bed 7 matched in clearance, gap is 0.01mm～2mm.
Preferred embodiment and operation principle, work process are described in detail below in conjunction with the accompanying drawings in detail: on allotter 4
Being provided with drive division 1, separator flour extraction pipe 3, drive division 1 is provided with frequency control motor 25.Drive division
1 bottom is provided with allotter 4, and allotter 4 bottom is welded with housing cover 14, and drive division 1 is with hollow
Axle 13 bolt connects, and hollow axle 13 welds with starting taper 15, and starting taper 15 is provided with moving vane 8, starting taper
Being provided with coal spout 2 in 15, coal spout 2 is connected with ceramic liner 12, stator blade bobbin 6 and axle bed 7 gap
Coordinating, gap is 0.01mm～2mm, and bolt 21 is through axle bed 7, blind with housing cover 14 screw thread
Hole connects, and stator blade bobbin 6 upper end is six prisms, and six prisms pass needle dial 17, elastic cylindrical pin
16 limit needle dial 17 through six prisms, and long cylinder screw rod 20 is through needle dial 17, sleeve pipe 19 and shell
Body cover plate 14 is threaded, and bolt 21 is through pointer 18, axle bed 7 and housing cover 14 tapped blind hole
Connecting, stator blade bobbin 6 is connected with stator blade 11 bolt, and support shaft 22 connects and stator blade 11 bolt
Connecting, support shaft 22 and axle bed ring 23 matched in clearance, support shaft 22 bottom is equiped with packing ring 24, axle
Seat ring 23 is connected with returning powder cone 9, and time powder is bored 9 inner surfacies and is lined with wear-resistant ceramic 10, housing 5 and method
Blue 26 are welded to connect, and housing cover 14 is connected with nut 28 by bolt 21 with flange 26.Separator
Drive division 1 uses gear slowing-down structure, and frequency conversion motor drives, stator blade 11 adjustable angle.
When the present invention works, when wind coal mixtures passes through stator blade 11, stopped shape by stator blade 11
Become a common practice the eddy current of coal mixtures, eddy current the centrifugal force produced changes direction and the speed of pulverized coal particle.
Thus, promote bulky grain coal dust leave breeze airflow fall back powder cone 9 in, along return powder bore 9 inwalls and
Raw coal is mixed feeding coal pulverizer.The aperture adjusting stator blade 6 plate can change wind coal mixtures
Flow field regulation, thus change and powder fineness.Enter the coal dust in region between stator blade 11 and moving vane 8
Air-flow runs up under drive at impeller, and pulverized coal particle was raised speed by moment, and coarse granule coal dust is at centrifugal force
And under moving vane 8 effect of impact, enter back powder with breeze airflow disengaging and bore 9 bottoms.Satisfactory
Coal dust enters boiler through dynamic impeller separated device flour extraction pipe 3.Moving vane 8 rotates, and it is qualified to make
Coal dust is got rid of faster, decreases the recirculation powder that separator produces, improves separation efficiency.Stator blade
Sheet 11 is adjustable, by regulation stator blade 11 angle, can improve the regulating power to fineness of pulverized coal,
Reach to improve boiler combustion efficiency, reduce the purpose of unburned carbon in flue dust.
Claims (5)
1. a coal pulverizer scalable dynamic rotary separator, comprises drive division, coal spout, separator go out
Tube cell, allotter, housing, stator blade bobbin, axle bed, moving vane, time powder cone, wear-resistant ceramic, stator blade
Sheet, ceramic liner, hollow axle, housing cover, starting taper, elastic cylindrical pin, needle dial, pointer, sleeve pipe,
Bolt, support shaft, nut, it is characterised in that: described drive division bottom is provided with allotter, internal with
Hollow axle connects, and allotter bottom is connected with described housing cover, and described hollow axle is led with described
Cone connects；Starting taper is provided with described moving vane；Described stator blade bobbin upper end is six prisms, described
Elastic cylindrical pin through limiting needle dial after stator blade bobbin, the described stator blade bobbin other end passes housing
Connected through stator blade is fixing by bolt after cover board hole；Described cylindrical screw through needle dial, sleeve pipe,
Pointer is connected with housing cover tapped blind hole, and bolt is connected through stator blade bobbin and stator blade are fixing.
A kind of coal pulverizer scalable dynamic rotary separator the most according to claim 1, its feature exists
In: being provided with coal spout in described starting taper, coal spout is connected with described ceramic liner.
A kind of coal pulverizer scalable dynamic rotary separator the most according to claim 1, its feature exists
In: bolt connects stator blade through described support shaft, and described support shaft coordinates with axle bed czermak space,
Support shaft bottom is equiped with packing ring, and axle bed ring is connected with the described powder cone that returns, and described returns table in powder cone
Face is lined with wear-resistant ceramic.
A kind of coal pulverizer scalable dynamic rotary separator the most according to claim 1, its feature exists
In: described housing is connected with bolt, and bolt is connected through described housing cover and nut are fixing.
A kind of coal pulverizer scalable dynamic rotary separator the most according to claim 1, its feature exists
In: described stator blade adjustable angle, adjusting range is 45 °～70 °, and described moving vane rotating speed can
Adjusting, adjusting range is 30rpm～300rpm, stator blade bobbin and axle bed matched in clearance, gap be 0.01mm～
2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190904.XA CN104759412B (en) | 2015-04-21 | 2015-04-21 | Coal pulverizer scalable dynamic rotary separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190904.XA CN104759412B (en) | 2015-04-21 | 2015-04-21 | Coal pulverizer scalable dynamic rotary separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104759412A CN104759412A (en) | 2015-07-08 |
| CN104759412B true CN104759412B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190904.XA Active CN104759412B (en) | 2015-04-21 | 2015-04-21 | Coal pulverizer scalable dynamic rotary separator |
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| Country | Link |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998726A (en) * | 2015-08-18 | 2015-10-28 | 芜湖奕辰模具科技有限公司 | Coal mill for boiler |
| CN105396780B (en) * | 2015-12-22 | 2017-08-25 | 蔡赞区 | Wind area amplifying type is drawn to select powder dust-precipitator system and its select powder collecting method |
| US10493463B2 (en) * | 2016-02-29 | 2019-12-03 | General Electric Technology Gmbh | System, method and apparatus for controlling the flow distribution of solid particles |
| CN109174422B (en) * | 2018-09-04 | 2023-05-05 | 北京慧峰仁和科技股份有限公司 | Coal mill and method for improving uniformity of coal dust |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6902126B2 (en) * | 2002-11-04 | 2005-06-07 | Alstom Technology Ltd | Hybrid turbine classifier |
| CN200954503Y (en) * | 2006-10-09 | 2007-10-03 | 邢传 | Coal-powder separator |
| CN101380631A (en) * | 2007-09-04 | 2009-03-11 | 上海重型机器厂有限公司 | Separator for coal mill |
| CN202506603U (en) * | 2011-12-27 | 2012-10-31 | 华北电力大学（保定） | Variable-cross section bending torsion movable blade rotary coal powder separator |
| CN202893678U (en) * | 2012-11-07 | 2013-04-24 | 北京北交富沃机电工程科技有限公司 | Novel movable and static combined rotary separator for powder coal |
| CN202962872U (en) * | 2012-11-30 | 2013-06-05 | 黄立娜 | Device for milling and dynamically sorting recovered powder by means of classification at high efficiency for intermediate-speed coal mill |
| CN204564571U (en) * | 2015-04-21 | 2015-08-19 | 黑龙江迪科电站技术有限公司 | The adjustable dynamic rotary separator of coal pulverizer |
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| CN104759412A (en) | 2015-07-08 |
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| SE01 | Entry into force of request for substantive examination | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20180423 Address after: 150001 1 factory building 4358 Songbei two street, Harbin, Heilongjiang Patentee after: Harbin Lizhong mill coal machine technology Co., Ltd. Address before: 150000 4358 Chi Chi Road, Songbei, Harbin, Heilongjiang Patentee before: Heilongjiang Dike Power Station Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191230 Address after: 150038 No. 50 Xiangfang Road, Xiangfang District, Heilongjiang, Harbin Patentee after: Harbin Boshen Science & Technology Development Co., Ltd. Address before: 1500001 workshop 1, No. 4358, Zhigu Second Street, Songbei District, Harbin City, Heilongjiang Province Patentee before: Harbin Lizhong mill coal machine technology Co., Ltd. |