CN110296431A - A kind of fineness of pulverized coal automatic regulating system and method based on static separation device - Google Patents
A kind of fineness of pulverized coal automatic regulating system and method based on static separation device Download PDFInfo
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- CN110296431A CN110296431A CN201910559405.1A CN201910559405A CN110296431A CN 110296431 A CN110296431 A CN 110296431A CN 201910559405 A CN201910559405 A CN 201910559405A CN 110296431 A CN110296431 A CN 110296431A
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- fineness
- pulverized coal
- baffle
- coal
- separation device
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- 239000003245 coal Substances 0.000 title claims abstract description 113
- 230000003068 static effect Effects 0.000 title claims abstract description 38
- 238000000926 separation method Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 11
- 238000000605 extraction Methods 0.000 claims abstract description 28
- 235000013312 flour Nutrition 0.000 claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 239000002817 coal dust Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a kind of fineness of pulverized coal automatic regulating system and method based on static separation device, including fineness of pulverized coal automatic control system, the actuator for detecting the fineness of pulverized coal on-line measurement device of fineness of pulverized coal in static separation device flour extraction pipe road and for adjusting the aperture of baffle in static separation device；The output end of fineness of pulverized coal on-line measurement device is connected with the input terminal of fineness of pulverized coal automatic control system, the output end of fineness of pulverized coal automatic control system is connected with the control terminal of actuator, the output end of actuator is connected with each baffle in static separation device, which can be realized the automatic adjustment of static separation device fineness of pulverized coal.
Description
Technical field
The invention belongs to coal-burning power plant pulverized coal preparation system field, it is related to a kind of fineness of pulverized coal based on static separation device and adjusts automatically
Save system and method.
Background technique
In recent years, it is influenced by coal market, coal-burning power plant's coal as received kind is unstable, and most of coal deviates design coal.
In order to meet combustion requirements in furnace, the economical property and safety of the operation of raising coal-burning power plant are needed for different coals, right
As-fired coal powder fineness adjusts accordingly；Especially recently as the propulsion of coal-burning power plant's flexibility transformation, to as-fired coal powder
The requirement of fineness is more stringent.Coal dust classifier uses static separation device in major part coal-burning power plant pulverized coal preparation system at present, static
Although separator has the characteristics that reliable for operation, maintenance cost is low, investment is small, adjustment is tired during facing day-to-day operation simultaneously
Difficulty can not realize the problems such as adjusting fineness of pulverized coal in real time according to coal is actually used；There is engineering real case by static separation device
It transform dynamic separator as, can reach the purpose that fineness of pulverized coal is adjusted in real time, but also bring and invest larger, daily maintenance amount increasing
The problem of adding.Therefore need to solve the problems, such as that static separation device fineness of pulverized coal is adjusted flexibly.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of coal dust based on static separation device is provided
Fineness automatic regulating system and method, the system and method can be realized the automatic adjustment of static separation device fineness of pulverized coal.
In order to achieve the above objectives, the fineness of pulverized coal automatic regulating system of the present invention based on static separation device includes coal
Powder fineness automatic control system, the fineness of pulverized coal on-line measurement device for detecting fineness of pulverized coal in static separation device flour extraction pipe road
And the actuator for adjusting the aperture of baffle in static separation device；
The output end of fineness of pulverized coal on-line measurement device is connected with the input terminal of fineness of pulverized coal automatic control system, coal dust
The output end of fineness automatic control system is connected with the control terminal of actuator, in the output end and static separation device of actuator
Each baffle is connected.
Actuator is connected by linkage with each baffle in static separation device.
The linkage includes first connecting rod, annular linkage lasso and several second connecting rods, one of second connecting rod
A corresponding baffle, the output shaft of actuator are connected with one end of first connecting rod, and the other end and annular of first connecting rod link
Lasso is connected, one end of each second connecting rod be all connected to annular linkage lasso on, the other end of each second connecting rod with it is corresponding
Baffle is connected, and at work, actuator drives annular linkage lasso to rotate by first connecting rod, and annular linkage lasso passes through each
Second connecting rod drives each baffle to change simultaneously its aperture.
Fineness of pulverized coal Automatic adjustment method of the present invention based on static separation device the following steps are included:
Recommendation that fineness of pulverized coal is determined according to as-fired coal kind and workload demand sets the aperture and fineness of pulverized coal of baffle
Homologous thread, fineness of pulverized coal automatic control system measure the thin of coal dust in powder pipeline by fineness of pulverized coal on-line measurement device
Degree, when the fineness of coal dust in current flour extraction pipe road is equal with the recommendation of fineness of pulverized coal, fineness of pulverized coal automatic control system is logical
Actuator control baffle is crossed, so that baffle keeps current aperture；When the fineness of coal dust in current flour extraction pipe road is greater than fineness of pulverized coal
Recommendation when, fineness of pulverized coal automatic control system according to the recommendation of fineness of pulverized coal generate first baffle opening control signal,
The first baffle opening control signal is sent in actuator again, actuator is according to the first baffle opening control signal
The aperture of baffle is turned down, so that the fineness of coal dust is equal to the recommendation of fineness of pulverized coal in flour extraction pipe road；When in current flour extraction pipe road
When the fineness of coal dust is less than the recommendation of fineness of pulverized coal, fineness of pulverized coal automatic control system is generated according to the recommendation of fineness of pulverized coal
Second baffle opening control signal, then the second baffle opening control signal is sent in actuator, actuator is according to institute
The aperture that second baffle opening control signal tunes up baffle is stated, so that the fineness of coal dust is equal to pushing away for fineness of pulverized coal in flour extraction pipe road
Recommend value.
Fineness of pulverized coal automatic control system using the average value of fineness of pulverized coal in the flour extraction pipe road that 5-10min measurement obtains as
The fineness of coal dust in current flour extraction pipe road.
The invention has the following advantages:
Fineness of pulverized coal automatic regulating system and method for the present invention based on static separation device is when specific operation, coal
Powder fineness automatic control system passes through the fineness of coal dust in fineness of pulverized coal on-line measurement device real-time measurement flour extraction pipe road, when current
When the recommendation of the fineness of pulverized coal of the fineness and setting of coal dust is inconsistent in flour extraction pipe road, then static separation is adjusted by actuator
The aperture of baffle in device, so that the recommendation of fineness of pulverized coal of fineness and setting of coal dust is consistent in flour extraction pipe road, it is quiet to realize
The automatic adjustment of state separator fineness of pulverized coal, meets boiler combustion demand, improves Boiler Economical Operation and safety.It needs to illustrate
, the present invention by actuator in static separation device baffle carry out on-line control, realize being precisely controlled for fineness of pulverized coal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of linkage in the present invention；
Fig. 2 is structural schematic diagram of the invention.
Wherein, 1 it is actuator, 2 be first connecting rod, 3 be annular linkage lasso, 4 be second connecting rod, 5 be baffle, 6 is coal
Powder fineness automatic control system, 7 be fineness of pulverized coal on-line measurement device, 8 be flour extraction pipe road.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, the fineness of pulverized coal automatic regulating system of the present invention based on static separation device includes fineness of pulverized coal
Automatic control system 6, for detect the fineness of pulverized coal on-line measurement device 7 of fineness of pulverized coal in static separation device flour extraction pipe road 8 with
And the actuator 1 for adjusting the aperture of baffle 5 in static separation device；The output end and coal of fineness of pulverized coal on-line measurement device 7
The input terminal of powder fineness automatic control system 6 is connected, the control of the output end and actuator 1 of fineness of pulverized coal automatic control system 6
End processed is connected, and the output end of actuator 1 is connected with each baffle 5 in static separation device.
With reference to Fig. 2, actuator 1 is connected by linkage with each baffle 5 in static separation device, wherein described
Dynamic device includes first connecting rod 2, annular linkage lasso 3 and several second connecting rods 4, the corresponding gear of one of second connecting rod 4
The output shaft of plate 5, actuator 1 is connected with one end of first connecting rod 2, the other end and annular linkage 3 phase of lasso of first connecting rod 2
Connection, one end of each second connecting rod 4 are all connected on annular linkage lasso 3, the other end of each second connecting rod 4 and corresponding baffle
5 are connected, and at work, actuator 1 drives annular linkage lasso 3 to rotate by first connecting rod 2, and annular linkage lasso 3 passes through
Each second connecting rod 4 drives each baffle 5 to change simultaneously its aperture.
Fineness of pulverized coal Automatic adjustment method of the present invention based on static separation device the following steps are included:
The recommendation of fineness of pulverized coal is determined according to as-fired coal kind and workload demand, sets the aperture and fineness of pulverized coal of baffle 5
Homologous thread, fineness of pulverized coal automatic control system 6 measures coal dust in powder pipeline 8 by fineness of pulverized coal on-line measurement device 7
Fineness, when the fineness of coal dust in current flour extraction pipe road 8 is equal with the recommendation of fineness of pulverized coal, fineness of pulverized coal automatically control system
System 6 controls baffle 5 by actuator 1, so that baffle 5 keeps current aperture；When the fineness of coal dust in current flour extraction pipe road 8 is greater than
When the recommendation of fineness of pulverized coal, fineness of pulverized coal automatic control system 6 generates first baffle aperture according to the recommendation of fineness of pulverized coal
Signal is controlled, then the first baffle opening control signal is sent in actuator 1, actuator 1 is according to the first baffle
Opening control signal turns the aperture of baffle 5 down, so that the fineness of coal dust is equal to the recommendation of fineness of pulverized coal in flour extraction pipe road 8；When
When the fineness of coal dust is less than the recommendation of fineness of pulverized coal in current flour extraction pipe road 8, fineness of pulverized coal automatic control system 6 is according to coal dust
The recommendation of fineness generates second baffle opening control signal, then the second baffle opening control signal is sent to actuator
In 1, actuator 1 tunes up the aperture of baffle 5 according to the second baffle opening control signal, so that coal dust in flour extraction pipe road 8
Fineness is equal to the recommendation of fineness of pulverized coal.
Wherein, fineness of pulverized coal is flat in the flour extraction pipe road 8 that fineness of pulverized coal automatic control system 6 obtains 5-10min measurement
Fineness of the mean value as coal dust in current flour extraction pipe road 8.
When the recommendation that system provides fineness of pulverized coal is not able to satisfy actual demand, what system can be provided according to operations staff
Fineness of pulverized coal instruction carries out automatically controlling fineness of pulverized coal recommendation, and control process only need to be by above-mentioned fineness of pulverized coal adjust automatically control
Recommendation during system is changed to the setting value of operations staff.
Claims (5)
1. a kind of fineness of pulverized coal automatic regulating system based on static separation device, which is characterized in that controlled automatically including fineness of pulverized coal
System (6) processed, for detect the fineness of pulverized coal on-line measurement device (7) of static separation device flour extraction pipe road (8) interior fineness of pulverized coal with
And the actuator (1) for adjusting the aperture of baffle (5) in static separation device；
The output end of fineness of pulverized coal on-line measurement device (7) is connected with the input terminal of fineness of pulverized coal automatic control system (6), coal
The output end of powder fineness automatic control system (6) is connected with the control terminal of actuator (1), the output end of actuator (1) with it is quiet
Each baffle (5) in state separator is connected.
2. the fineness of pulverized coal automatic regulating system according to claim 1 based on static separation device, which is characterized in that execute
Device (1) is connected by linkage with each baffle (5) in static separation device.
3. the fineness of pulverized coal automatic regulating system according to claim 1 based on static separation device, which is characterized in that described
Linkage includes first connecting rod (2), annular linkage lasso (3) and several second connecting rods (4), one of second connecting rod (4)
A corresponding baffle (5), the output shaft of actuator (1) are connected with one end of first connecting rod (2), first connecting rod (2) it is another
End is connected with annular linkage lasso (3), and one end of each second connecting rod (4) is all connected in annular linkage lasso (3), and each second
The other end of connecting rod (4) is connected with corresponding baffle (5), and at work, actuator (1) passes through first connecting rod (2) band rotating ring
Shape linkage lasso (3) rotation, annular linkage lasso (3) change simultaneously it by each baffle (5) of each second connecting rod (4) drive and open
Degree.
4. a kind of fineness of pulverized coal Automatic adjustment method based on static separation device, which is characterized in that based on described in claim 1
Fineness of pulverized coal automatic regulating system based on static separation device, comprising the following steps:
It determines the recommendation of fineness of pulverized coal according to as-fired coal kind and workload demand, sets the aperture and fineness of pulverized coal of baffle (5)
Homologous thread, fineness of pulverized coal automatic control system (6) are measured in powder pipeline (8) by fineness of pulverized coal on-line measurement device (7)
The fineness of coal dust, when the fineness of the interior coal dust of current flour extraction pipe road (8) is equal with the recommendation of fineness of pulverized coal, fineness of pulverized coal is automatic
Control system (6) is by actuator (1) control baffle (5), so that baffle (5) keeps current aperture；When current flour extraction pipe road (8)
When the fineness of interior coal dust is greater than the recommendation of fineness of pulverized coal, fineness of pulverized coal automatic control system (6) is according to the recommendation of fineness of pulverized coal
Value generates first baffle opening control signal, then the first baffle opening control signal is sent in actuator (1), executes
Device (1) turns the aperture of baffle (5) down according to the first baffle opening control signal, so that flour extraction pipe road (8) interior coal dust is thin
Degree is equal to the recommendation of fineness of pulverized coal；When the fineness of the interior coal dust of current flour extraction pipe road (8) is less than the recommendation of fineness of pulverized coal, coal
Powder fineness automatic control system (6) generates second baffle opening control signal according to the recommendation of fineness of pulverized coal, then by described the
Two baffle opening control signals are sent in actuator (1), and actuator (1) is tuned up according to the second baffle opening control signal
The aperture of baffle (5), so that the fineness of flour extraction pipe road (8) interior coal dust is equal to the recommendation of fineness of pulverized coal.
5. the fineness of pulverized coal Automatic adjustment method according to claim 4 based on static separation device, which is characterized in that coal dust
The average value of flour extraction pipe road (8) interior fineness of pulverized coal that fineness automatic control system (6) obtains 5-10min measurement as it is current go out
The fineness of powder pipeline (8) interior coal dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559405.1A CN110296431A (en) | 2019-06-26 | 2019-06-26 | A kind of fineness of pulverized coal automatic regulating system and method based on static separation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559405.1A CN110296431A (en) | 2019-06-26 | 2019-06-26 | A kind of fineness of pulverized coal automatic regulating system and method based on static separation device |
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| CN110296431A true CN110296431A (en) | 2019-10-01 |
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| CN201910559405.1A Pending CN110296431A (en) | 2019-06-26 | 2019-06-26 | A kind of fineness of pulverized coal automatic regulating system and method based on static separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986080A (en) * | 2019-11-15 | 2020-04-10 | 大唐华银电力股份有限公司耒阳分公司 | Boiler pulverized coal concentration measuring and adjusting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205701463U (en) * | 2015-04-02 | 2016-11-23 | 黄立新 | The series connection biaxially sorting unit of baffle plate linkage regulation |
| CN206567076U (en) * | 2016-08-31 | 2017-10-20 | 珠海市华远自动化科技有限公司 | A kind of system controlled for fineness of pulverized coal |
| CN207254514U (en) * | 2017-07-17 | 2018-04-20 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of separator and its baffle plate assembly |
| CN207667802U (en) * | 2017-11-29 | 2018-07-31 | 西安格瑞电力科技有限公司 | A kind of separator for coal mill outlet coal powder density or fineness on-line tuning device |
-
2019
- 2019-06-26 CN CN201910559405.1A patent/CN110296431A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205701463U (en) * | 2015-04-02 | 2016-11-23 | 黄立新 | The series connection biaxially sorting unit of baffle plate linkage regulation |
| CN206567076U (en) * | 2016-08-31 | 2017-10-20 | 珠海市华远自动化科技有限公司 | A kind of system controlled for fineness of pulverized coal |
| CN207254514U (en) * | 2017-07-17 | 2018-04-20 | 中国大唐集团科学技术研究院有限公司华中分公司 | A kind of separator and its baffle plate assembly |
| CN207667802U (en) * | 2017-11-29 | 2018-07-31 | 西安格瑞电力科技有限公司 | A kind of separator for coal mill outlet coal powder density or fineness on-line tuning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986080A (en) * | 2019-11-15 | 2020-04-10 | 大唐华银电力股份有限公司耒阳分公司 | Boiler pulverized coal concentration measuring and adjusting device |
| CN110986080B (en) * | 2019-11-15 | 2021-12-31 | 大唐华银电力股份有限公司耒阳分公司 | Boiler pulverized coal concentration measuring and adjusting device |
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Application publication date: 20191001 |