CN106226125A - A kind of high accuracy as-fired coal sampling and weigh verification integral system and method - Google Patents
A kind of high accuracy as-fired coal sampling and weigh verification integral system and method Download PDFInfo
- Publication number
- CN106226125A CN106226125A CN201610586279.5A CN201610586279A CN106226125A CN 106226125 A CN106226125 A CN 106226125A CN 201610586279 A CN201610586279 A CN 201610586279A CN 106226125 A CN106226125 A CN 106226125A
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- coal
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- weighing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses and belong to a kind of high accuracy as-fired coal sampling of as-fired coal sampling and field of measuring techniques and weigh verification integral system and method.The sampling of this as-fired coal and verification integral system of weighing by coal sampler, coal division and return unit, weigh and verification unit, computer control unit form, computer control unit controls coal sampler and carries out automatic coal sampling, coal sample enters coal division and returns unit, standby sample is increased after reduction device division keeps sample, wherein after packaging automatically, spray Quick Response Code encryption for sample, in order to selective examination verification.Abandoning sample to enter and weigh and verification unit, weigh with on belt conveyer scale respectively in coal bunker of weighing, belt conveyer scale is weighed verification by the weight signal that computer control unit is returned according to coal bunker internal feedback of weighing.The present invention can realize sampling automatization and the precision of belt conveyer scale verification from coal, for completing the automatic sampling work of as-fired coal and improving the as-fired coal metering accuracy good Technical Reference of offer.
Description
Technical field
The invention belongs to the sampling of stove coal and metering system, particularly to one high accuracy as-fired coal sampling and verification one of weighing
Body system and method.
Technical background
In the fire coal production process of thermal power plant, the cost of fuel constitutes about the 80% of totle drilling cost, so ensureing into stove
Coal is up-to-standard stable significant to the economic benefit safeguarding power plant.The error impact that analysis result is caused by sampling element
Very big, existing as-fired coal sampling apparatus is arranged in the middle part of conveyer belt mostly, in belt runs by sampling head periodically by coal by skin
Scraping on band, enter division equipment, unnecessary coal sample is carried back conveyer belt by bucket elevator.But the sampling head degree of depth is wayward, cross deep meeting
Damage belt, crosses the most shallow, samples that under-represented (particularly CFB unit, at coal after Screening and crushing system at conveyer belt higher slice
Piling up, ature of coal levels difference is bigger).
At present, as-fired coal weigh calibration equipment many employings carrying roller weigh, chain code dynamic check.But chain code check is installed relatively
Complexity, is affected, after relatively testing with many factors such as zone face frictional force, chain code movable part resistances by conveyer belt tensile force, chain code
Error cannot ensure, need to carry out physical goods inspection every year, major part factory coal handling system does not all design the feed bin of physical goods inspection and enters
Material mouth, verifying work difficulty is big and precision is difficult to ensure that.
Solving coal handling system as-fired coal for specific aim to sample and problem present in checking procedure of weighing, the present invention proposes one
Plant high accuracy as-fired coal sampling and weigh verification integral system and method, adopt by carrying out the most automatic coal in coal spout
Sample, solves above-mentioned coal sample devices sampling the strongest problem uneven, representative.Received by computer control system
The weight signal of respective sensor feedback, can complete automatic Weighing verification, solve the work difficulty that chain code dynamic check exists
Greatly, the problem that error cannot ensure.Make as-fired coal sampling and gage work automatization, precision.
Summary of the invention
It is an object of the invention to provide a kind of high accuracy as-fired coal sampling and weigh verification integral system and method, it is special
Levying and be, the sampling of this as-fired coal and verification integral system of weighing are by coal spout 1, coal sampler 2, sampling feed bin 3, conveyer belt
4, coal division keeps sample equipment 5, automatically packaging code-spraying equipment 6, computer control unit 7, belt conveyer scale gravity sensor 8, belt conveyer scale
9, electric door motor 10, Electrically operated gate 11, coal bunker gravity sensor 12, coal bunker 13 of weighing, bucket elevator 14, liftway 15, bucket carry
Machine lifting motor 16 forms；Wherein, coal sampler 2 is installed on coal spout 1 side, as automatic sampling apparatus；Sampling feed bin 3
Outlet connect coal division and keep sample the entrance of equipment 5, the keep sample standby sample outlet of equipment 5 of coal division connects packaging code-spraying equipment 6 automatically
Entrance；Coal bunker gravity sensor 12 is positioned at the lower section of coal bunker 13 of weighing；Electrically operated gate 11 is positioned at the lower section of coal bunker gravity sensor 12,
Electrically operated gate 11 outlet is positioned at the front of belt conveyer scale 9；Belt conveyer scale 9 is positioned at the lower section of conveyer belt 4；Computer control unit 7 is by letter
Number transmission line respectively with coal sampler 2, automatically packaging code-spraying equipment 6, belt conveyer scale gravity sensor 8, electric door motor 10, coal
Storehouse gravity sensor 12, bucket elevator lifting motor 16 connect.Bucket elevator 14 is positioned on liftway 15 and electric with bucket elevator lifting
Machine 16 connects.
The coal bunker gravity sensor 12 of described coal bunker 13 bottom of weighing periodically carries out counterweight verification.
Described coal division keeps sample the standby sample in equipment 5, through packaging code-spraying equipment 6 carries out packaging and coding preserves 30 automatically
My god.
As-fired coal is sampled and the method for verification of weighing by the sampling of a kind of high accuracy as-fired coal and verification integral system of weighing,
It is characterized in that, computer control unit 7 controls coal sampler 2 and samples from coal spout 1, and coal sample is entered by sampling feed bin 3
The coal division equipment 5 that keeps sample carries out division and keeps sample, and meanwhile, computer control unit 7 controls automatically to pack code-spraying equipment 6 and enters standby sample
Row packaging coding, standby sample preserves 30 days to facilitate selective examination verification.Computer control unit 7 controls bucket elevator lifting motor 16 and moves
Make, drive bucket elevator 14 will abandon sample along liftway 15 and be promoted to coal bunker 13 top of weighing, and carry out discharging, then bucket elevator 14
Returning to bottom liftway 15, bucket elevator lifting motor 16 stops action.Weigh the coal bunker gravity sensor 12 bottom coal bunker 13
The weight signal of coal charge in storehouse is fed back to computer control unit 7.After the certain predetermined time, computer control unit 7
Controlling electric door motor 10 action, Electrically operated gate 11 is opened, and coal charge falls on belt 4, is positioned at the position in belt conveyer scale 9 front, electronic
When door 11 is again switched off, electric door motor 10 stops action.Coal charge on belt 4 when belt conveyer scale 9, belt conveyer scale gravity sensitive
Coal feed weight signal is fed back to computer control unit 7 by device 8.Computer control unit 7 is anti-according to coal bunker gravity sensor 12
The weight signal of feedback carries out automatic Weighing verification to belt conveyer scale 9, and computer control unit 7 completes belt conveyer scale gravity sensor 8
Automatic Weighing verification.
The invention has the beneficial effects as follows: plant high accuracy as-fired coal sampling and weigh verification integral system and method, pass through
Coal sampling the most automatically is carried out, it is ensured that the uniformity of coal sampling and representativeness in coal spout.Pass through computer control system
Receive the weight signal of respective sensor feedback, automatic Weighing verifying work can be completed, solve what chain code dynamic check existed
The problem that work difficulty is big, error cannot ensure.Make as-fired coal sampling and gage work automatization, precision.For completing
The automatic sampling work of as-fired coal and raising as-fired coal metering accuracy provide good Technical Reference.
Accompanying drawing explanation
Fig. 1 is high accuracy as-fired coal sampling and verification integral system structural representation of weighing.
Detailed description of the invention
The present invention provides a kind of high accuracy as-fired coal sampling and weigh verification integral system and method, below in conjunction with the accompanying drawings
The present invention is further illustrated.
As shown in fig. 1, the sampling of stove coal and verification integral system of weighing are by coal spout 1, coal sampler 2, sampling material
Storehouse 3, conveyer belt 4, coal division keep sample equipment 5, automatically packaging code-spraying equipment 6, computer control unit 7, belt conveyer scale gravity sensitive
Device 8, belt conveyer scale 9, electric door motor 10, Electrically operated gate 11, coal bunker gravity sensor 12, coal bunker 13 of weighing, bucket elevator 14, lifting are led to
Road 15, bucket elevator lifting motor 16 form；Wherein, coal sampler 2 is installed on coal spout 1 side, as automatic sampling apparatus；
The outlet of sampling feed bin 3 connects coal division and keeps sample the entrance of equipment 5, and the keep sample standby sample of equipment 5 of coal division exports to connect and automatically packs spray
The entrance of decoding apparatus 6；Coal bunker gravity sensor 12 is positioned at the lower section of coal bunker 13 of weighing；Electrically operated gate 11 is positioned at coal bunker gravity sensor
The lower section of 12, Electrically operated gate 11 outlet is positioned at the front of belt conveyer scale 9；Belt conveyer scale 9 is positioned at the lower section of conveyer belt 4；Computer controls single
Unit 7 by signal transmssion line respectively with coal sampler 2, automatically packaging code-spraying equipment 6, belt conveyer scale gravity sensor 8, Electrically operated gate
Motor 10, coal bunker gravity sensor 12, bucket elevator lifting motor 16 connect.Bucket elevator 14 be positioned on liftway 15 and with bucket
Carry machine lifting motor 16 to connect.
The coal bunker gravity sensor 12 of described coal bunker 13 bottom of weighing periodically carries out counterweight verification.
Present invention high accuracy as-fired coal sampling and verification integral system of weighing are to as-fired coal sampling and the former of verification of weighing
Reason: computer control unit 7 controls coal sampler 2 and samples from coal spout 1, coal sample enters coal division and stays by sampling feed bin 3
Sample equipment 5 carries out division and keeps sample, and meanwhile, computer control unit 7 controls automatically to pack code-spraying equipment 6 and packs standby sample also
Coding, standby sample preserves 30 days to facilitate selective examination verification.Computer control unit 7 controls bucket elevator lifting motor 16 action, drives
Bucket elevator 14 will be abandoned sample along liftway 15 and be promoted to coal bunker 13 top of weighing, and carry out discharging, and then bucket elevator 14 returns to rise
Bottom fall passage 15, bucket elevator lifting motor 16 stops action.Weigh the coal bunker gravity sensor 12 bottom coal bunker 13 by storehouse
The weight signal of coal charge feeds back to computer control unit 7.After the certain predetermined time, computer control unit 7 controls electricity
Moving door motor 10 action, Electrically operated gate 11 is opened, and coal charge falls on belt 4, is positioned at the position in belt conveyer scale 9 front, and Electrically operated gate 11 is again
During secondary closedown, electric door motor 10 stops action.Coal charge on belt 4 is when belt conveyer scale 9, and belt conveyer scale gravity sensor 8 will
Coal feed weight signal feeds back to computer control unit 7.The weight that computer control unit 7 feeds back according to coal bunker gravity sensor 12
Amount signal carries out automatic Weighing verification to belt conveyer scale 9, and it is automatic that computer control unit 7 completes belt conveyer scale gravity sensor 8
Weigh verification.
Claims (4)
1. a high accuracy as-fired coal sampling and verification integral system of weighing, it is characterised in that as-fired coal sampling and school of weighing
Test integral system by coal spout (1), coal sampler (2), sampling feed bin (3, conveyer belt (4), coal division keep sample equipment (5),
Automatically code-spraying equipment (6), computer control unit (7), belt conveyer scale gravity sensor (8), belt conveyer scale (9), Electrically operated gate electricity are packed
Machine (10), Electrically operated gate (11), coal bunker gravity sensor (12), coal bunker of weighing (13), bucket elevator (14), liftway (15), bucket
Carry machine lifting motor (16) composition；Wherein, coal sampler (2) is installed on coal spout (1) side, as automatic sampling apparatus；
The outlet of sampling feed bin (3) connects coal division and keeps sample the entrance of equipment (5), and the keep sample standby sample outlet of equipment (5) of coal division connects automatic
The entrance of packaging code-spraying equipment (6)；Coal bunker gravity sensor (12) is positioned at the lower section of coal bunker of weighing (13)；Electrically operated gate (11) is positioned at
The lower section of coal bunker gravity sensor (12), Electrically operated gate (11) outlet is positioned at the front of belt conveyer scale (9)；Belt conveyer scale (9) is positioned at transmission
The lower section of band (4)；Computer control unit (7) is set with coal sampler (2), automatically packaging coding respectively by signal transmssion line
Standby (6), belt conveyer scale gravity sensor (8), electric door motor (10), coal bunker gravity sensor (12), bucket elevator lifting motor
(16) connecting, bucket elevator (14) is positioned on liftway (15), and is connected with bucket elevator lifting motor (16).
A kind of high accuracy as-fired coal sampling and verification integral system of weighing, it is characterised in that institute
The coal bunker gravity sensor (12) stating coal bunker of weighing (13) bottom periodically carries out counterweight verification.
A kind of high accuracy as-fired coal sampling and verification integral system of weighing, it is characterised in that institute
State coal division to keep sample the standby sample in equipment (5), carry out packaging and coding preserves 30 days through automatically packing code-spraying equipment (6).
4. the sampling of high accuracy as-fired coal and verification integral system of weighing are to as-fired coal sampling and a method for verification of weighing, its
Being characterised by, computer control unit (7) controls coal sampler (2) and samples from coal spout (1), and coal sample is by sampling feed bin
(3) entering the coal division equipment (5) that keeps sample to carry out division and keep sample, meanwhile, computer control unit (7) controls packaging coding automatically and sets
Standby (6) carry out packaging coding to standby sample, and standby sample preserves 30 days to facilitate selective examination verification；Computer control unit (7) controls bucket
Propose machine lifting motor (16) action, drive bucket elevator (14) sample will be abandoned along liftway (15) and be promoted to weigh on coal bunker (13)
Portion, and carry out discharging, then bucket elevator (14) returns to bottom liftway (15), bucket elevator lifting motor (16) stopping action,
Weigh coal bunker (13) bottom coal bunker gravity sensor (12) weight signal of coal charge in storehouse is fed back to computer control unit
(7)；After the certain predetermined time, computer control unit (7) controls electric door motor (10) action, and Electrically operated gate (11) is beaten
Opening, coal charge falls on belt (4), is positioned at the position in belt conveyer scale (9) front, when Electrically operated gate (11) is again switched off, and electric door motor
(10) stopping action, the coal charge on belt (4) is when belt conveyer scale (9), and belt conveyer scale gravity sensor (8) is by coal feed weight signal
Feed back to computer control unit (7)；The weight signal that computer control unit (7) feeds back according to coal bunker gravity sensor (12)
Belt conveyer scale (9) carries out automatic Weighing verification, and it is automatic that computer control unit (7) completes belt conveyer scale gravity sensor (8)
Weigh verification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586279.5A CN106226125A (en) | 2016-07-22 | 2016-07-22 | A kind of high accuracy as-fired coal sampling and weigh verification integral system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610586279.5A CN106226125A (en) | 2016-07-22 | 2016-07-22 | A kind of high accuracy as-fired coal sampling and weigh verification integral system and method |
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| Publication Number | Publication Date |
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| CN106226125A true CN106226125A (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610586279.5A Pending CN106226125A (en) | 2016-07-22 | 2016-07-22 | A kind of high accuracy as-fired coal sampling and weigh verification integral system and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768219A (en) * | 2016-12-19 | 2017-05-31 | 国核电力规划设计研究院 | A kind of as-fired coal Weighing system and its weighing technique, method of calibration |
| CN108627421A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density devices |
| CN108627420A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density system and method |
| CN108627423A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of automation coal device for detecting density and method |
| CN108792646A (en) * | 2018-04-20 | 2018-11-13 | 中国神华能源股份有限公司 | The method of defeated coal |
| CN110040386A (en) * | 2019-04-19 | 2019-07-23 | 国电电力发展股份有限公司大连开发区热电厂 | A kind of boiler as-fired coal individual metering system and method |
| CN110926869A (en) * | 2019-11-12 | 2020-03-27 | 中南大学 | Preliminary division weighing and collecting device and method for powdery sample material |
| WO2023070370A1 (en) * | 2021-10-27 | 2023-05-04 | 华能烟台八角热电有限公司 | Metering precision checking apparatus and method for coal conveying electronic belt scale of circular stacker-reclaimer |
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| CN86200855U (en) * | 1986-02-22 | 1987-04-15 | 西安电力机械厂 | Coal sampler |
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| CN2149622Y (en) * | 1992-10-19 | 1993-12-15 | 山东南定热电厂 | Mechanical coal sampling and preparing specimen apparatus |
| CN203178090U (en) * | 2013-04-23 | 2013-09-04 | 大唐贵州发耳发电有限公司 | Accurate sampling device for realizing respective sampling of coals for different boilers |
| CN205861383U (en) * | 2016-07-22 | 2017-01-04 | 华北电力大学 | As-fired coal sampling and verification integral system of weighing in high precision |
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- 2016-07-22 CN CN201610586279.5A patent/CN106226125A/en active Pending
Patent Citations (5)
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| CN86200855U (en) * | 1986-02-22 | 1987-04-15 | 西安电力机械厂 | Coal sampler |
| CN2108295U (en) * | 1991-12-03 | 1992-06-24 | 青岛发电厂 | Coal-flow sampling device |
| CN2149622Y (en) * | 1992-10-19 | 1993-12-15 | 山东南定热电厂 | Mechanical coal sampling and preparing specimen apparatus |
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| CN205861383U (en) * | 2016-07-22 | 2017-01-04 | 华北电力大学 | As-fired coal sampling and verification integral system of weighing in high precision |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768219A (en) * | 2016-12-19 | 2017-05-31 | 国核电力规划设计研究院 | A kind of as-fired coal Weighing system and its weighing technique, method of calibration |
| CN108627421A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density devices |
| CN108627420A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density system and method |
| CN108627423A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of automation coal device for detecting density and method |
| CN108792646A (en) * | 2018-04-20 | 2018-11-13 | 中国神华能源股份有限公司 | The method of defeated coal |
| CN108792646B (en) * | 2018-04-20 | 2020-06-16 | 中国神华能源股份有限公司 | Method for conveying coal |
| CN110040386A (en) * | 2019-04-19 | 2019-07-23 | 国电电力发展股份有限公司大连开发区热电厂 | A kind of boiler as-fired coal individual metering system and method |
| CN110926869A (en) * | 2019-11-12 | 2020-03-27 | 中南大学 | Preliminary division weighing and collecting device and method for powdery sample material |
| WO2023070370A1 (en) * | 2021-10-27 | 2023-05-04 | 华能烟台八角热电有限公司 | Metering precision checking apparatus and method for coal conveying electronic belt scale of circular stacker-reclaimer |
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