CN201357109Y - Coal mill separator baffle asynchronous adjusting device - Google Patents
Coal mill separator baffle asynchronous adjusting device Download PDFInfo
- Publication number
- CN201357109Y CN201357109Y CNU2009200223343U CN200920022334U CN201357109Y CN 201357109 Y CN201357109 Y CN 201357109Y CN U2009200223343 U CNU2009200223343 U CN U2009200223343U CN 200920022334 U CN200920022334 U CN 200920022334U CN 201357109 Y CN201357109 Y CN 201357109Y
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- asynchronous
- adjusting device
- separator
- coal
- baffle
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Abstract
The utility model discloses a coal mill separator baffle asynchronous adjusting device, which solves the problem that an existing coal-fired power station boiler has uneven concentration of pulverized coal in a primary air duct, has the advantages of simple structure and obvious effect, and can increase the concentration and fineness evenness of pulverized coal of the primary air duct after being applied to boilers. The coal mill separator baffle asynchronous adjusting device has the structure that a plurality of adjusting baffles arranged on an outlet of a coal mill pulverizing system separator along circumference are provided, the adjusting baffles are divided into a plurality of baffle groups which are mutually and independently adjusted according to the corresponding primary air ducts, the baffle groups are connected with the asynchronous adjusting device, and the asynchronous adjusting device is connected with a control device.
Description
Technical field
The utility model relates to the asynchronous adjusting device of separator for coal mill baffle plate, is mainly used in the direct-firing or bin storage type pulverizing system of station boiler, belongs to the boiler technology field.
Background technology
The large-sized station boiler unit generally adopts unit pulverized-coal system at present.Find that in actual motion in each pulverized coal channel of separate unit coal pulverizer (comprising medium-speed pulverizer and double-inlet and double-outlet steel ball mill) outlet, pulverized coal flow distributes ubiquity than large deviation.Evidence, this phenomenon all exists in a plurality of power plant, and particularly on the boiler unit that adopts corner tangential firing, because each airduct road length differs bigger, this deviation is more obvious.The direct harm of an airduct road pulverized coal flow deviation is to cause every burner pulverized coal flow and fineness of pulverized coal to exist than big-difference, cause burn deterioration, flying dust and ash combustibles improve, the boiler low load stable combustion ability reduces and problems such as water-cooling wall coking and high temperature corrosion.
Coal pulverizer mill separator axial separation baffle plate generally adopts manual adjustments at present, all baffle plates along circumference branch are divided into two groups of unified adjustings, the drawback of this regulative mode is that the adjusting angle of each baffle plate fails to form relation one to one with the drag characteristic of pulverized coal channel, though also be that each baffle plate angle is the same, the pulverized coal flow in each airduct road has than big difference.
Summary of the invention
The utility model is at existing coal-fired power station boiler concentration of pulverized coal problem of non-uniform, provide a kind of separator for coal mill baffle plate asynchronous adjusting device, it can effectively solve boiler concentration of pulverized coal problem of non-uniform, has advantages such as simple in structure, easy to use.
For achieving the above object, the utility model adopts following technical scheme:
The asynchronous adjusting device of a kind of separator for coal mill baffle plate, it comprises circumferential several controllable registers of coal pulverizer pulverized coal preparation system separator outlet, described controllable register is divided into the baffle group of a plurality of separate independent adjustings according to a corresponding airduct road, baffle group is connected with asynchronous adjusting device, and asynchronous adjusting device is connected with control device.
Described control device comprises interconnective data acquisition and controller and command input device.
Described asynchronous adjusting device comprises asynchronous concentrated guiding mechanism, and it is connected with corresponding baffle group, and each asynchronous concentrated guiding mechanism is connected with a corresponding YE, and YE is connected with control device.
It is the 0-90 degree that the controllable register of described each baffle group is adjusted angle.
Described controllable register group adjusting angle different.
The utility model adopts following technical solution: by testing coal powder density and the fineness of determining in each airduct road of separator outlet, and determine the corresponding relation in each separator baffle plate and each airduct road; According to result of the test, circumferential separator baffle plate is divided into different adjusting groups by the corresponding relation with an airduct road.The corresponding airduct road of baffle plate in each adjusting group; Baffle plate adjusting angle excursion in each adjusting group is the 0-90 degree; By adjusting the baffle plate angle in each adjusting group, adjust coal powder density and fineness in the corresponding airduct road, thereby reach coal powder density and uniform fineness in each subtube of single separator outlet.To each adjusting group, concentrated guiding mechanism is set, and installs YE additional, convenient control far away is regulated; Setting adjustment curve makes separator baffle plate angle can follow the coal pulverizer load and boiler load is regulated automatically.
The beneficial effects of the utility model are: simple in structure, effect is obvious, is applied to coal powder density and fineness uniformity that boiler can be heightened an airduct road.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Wherein, 1. airduct road, 2. coal spout, 3. separator damper shaft, 4. YE, 5. asynchronous concentrated guiding mechanism, 6. data acquisition and controller, 7. command input device, 8. separator baffle plate.
The specific embodiment
As shown in Figure 1, boiler oxygen-enriched combustion-supporting device of the present utility model comprises: asynchronous concentrated guiding mechanism 5, YE 4, data acquisition and controller 6, command input device 7 etc.
In Fig. 1, be provided with four equally distributed airduct roads 1 at coal spout 2 circumferencial directions; Circumferential separator baffle plate 8 has been divided into different groups according to the position and the flow behavior in an airduct road 1 simultaneously, has been divided into uniform 4 baffle group in the present embodiment.
Each baffle group is made up of a plurality of separator baffle plates 8, and each separator baffle plate 8 is connected with separately separator damper shaft 3.Each separator baffle plate 8 is linked together by coupling mechanism and asynchronous concentrated guiding mechanism 5, and is controlled by the asynchronous concentrated guiding mechanism 5 of correspondence.
Asynchronous concentrated guiding mechanism 5 can be used manual operation, also can adopt YE 4 to operate.
Upstream arrangement at YE 4 has data acquisition and controller 6 and command input device 7, reaches the purpose of distant place control and regulation.
Claims (5)
1. asynchronous adjusting device of separator for coal mill baffle plate, it comprises circumferential several controllable registers of coal pulverizer pulverized coal preparation system separator outlet, it is characterized in that, described controllable register is divided into the baffle group of a plurality of separate independent adjustings according to a corresponding airduct road, baffle group is connected with asynchronous adjusting device, and asynchronous adjusting device is connected with control device.
2. the asynchronous adjusting device of separator for coal mill baffle plate as claimed in claim 1 is characterized in that described control device comprises interconnective data acquisition and controller and command input device.
3. the asynchronous adjusting device of separator for coal mill baffle plate as claimed in claim 1, it is characterized in that, described asynchronous adjusting device comprises asynchronous concentrated guiding mechanism, it is connected with corresponding baffle group, each asynchronous concentrated guiding mechanism is connected with a corresponding YE, and YE is connected with control device.
4. as claim 1 or the asynchronous adjusting device of 3 described separator for coal mill baffle plates, it is characterized in that it is the 0-90 degree that the controllable register of described each baffle group is adjusted angle.
5. the asynchronous adjusting device of separator for coal mill baffle plate as claimed in claim 4 is characterized in that, described controllable register group adjusting angle different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200223343U CN201357109Y (en) | 2009-02-25 | 2009-02-25 | Coal mill separator baffle asynchronous adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200223343U CN201357109Y (en) | 2009-02-25 | 2009-02-25 | Coal mill separator baffle asynchronous adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201357109Y true CN201357109Y (en) | 2009-12-09 |
Family
ID=41422866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200223343U Expired - Fee Related CN201357109Y (en) | 2009-02-25 | 2009-02-25 | Coal mill separator baffle asynchronous adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201357109Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600959A (en) * | 2012-04-05 | 2012-07-25 | 甘肃电力科学研究院 | Coordinated control system and coordinated control method for powder milling system of double-entering and double-leaving coal mill |
| CN106583018A (en) * | 2016-12-16 | 2017-04-26 | 大唐东北电力试验研究所有限公司 | Selective distributor for primary-air powder from medium-speed coal mill |
-
2009
- 2009-02-25 CN CNU2009200223343U patent/CN201357109Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600959A (en) * | 2012-04-05 | 2012-07-25 | 甘肃电力科学研究院 | Coordinated control system and coordinated control method for powder milling system of double-entering and double-leaving coal mill |
| CN102600959B (en) * | 2012-04-05 | 2013-12-25 | 甘肃电力科学研究院 | Coordinated control system and coordinated control method for powder milling system of double-entering and double-leaving coal mill |
| CN106583018A (en) * | 2016-12-16 | 2017-04-26 | 大唐东北电力试验研究所有限公司 | Selective distributor for primary-air powder from medium-speed coal mill |
| CN106583018B (en) * | 2016-12-16 | 2019-04-16 | 大唐东北电力试验研究院有限公司 | Medium-speed pulverizer primary wind and powder selectivity distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20130225 |