CN205027769U - But on -line monitoring coal sample total moisture loss gather and process a kind device - Google Patents
But on -line monitoring coal sample total moisture loss gather and process a kind device Download PDFInfo
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- CN205027769U CN205027769U CN201520772535.0U CN201520772535U CN205027769U CN 205027769 U CN205027769 U CN 205027769U CN 201520772535 U CN201520772535 U CN 201520772535U CN 205027769 U CN205027769 U CN 205027769U
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Abstract
The utility model relates to a but on -line monitoring coal sample total moisture loss gather and process a kind device, kind device of gathering and processing include a sampling system and a system appearance system, sampling system is including sampling machine, elementary material feeding unit, system appearance system includes breaker, secondary material feeding unit, reduction device, establish elementary feed belt in the elementary material feeding unit, install the belt weigher on the elementary feed belt, the feed opening department of breaker is connected with air exhaust device through the pipeline, and be equipped with small -size revolving on the connecting line of air exhaust device and breaker and divide the separator, be equipped with the humiture apparatus on small -size branch separator soon and air exhaust device's the connecting line, the small -size discharge gate that divides the separator that revolves is connected to secondary material feeding unit, humiture apparatus, belt weigher all are connected with the data acquisition device, the data acquisition device is connected with the main frame. Gather and process kind device and can rationally revise coal total moisture value, reduce enterprise's coal expenses cost.
Description
Technical field
The utility model relates to coal sampling sample field, be specifically related to a kind of can on-line monitoring coal sample total moisture loss sampling apparatus.
Background technology
According to statistics, the Coal-fired capacity that domestic big-and-middle-sized power plant is daily can reach thousands of tons of, even ten thousand tons, carry out an acceptance inspection to coal by traditional manual sampling methods, workload is very big, inefficiency, and work situation is severe, the difficult quality that what is more important gathers and processes sample is guaranteed.Not only power plant, with the enterprise of coal in all trades and professions, all progressively implements coal-fired sampling prototype tool, and this is the inexorable trend of development.In fact current sampling prototype comprises sampling and sample preparation two large divisions, and no matter adopt the coal sampling machine of which kind of type, its sample-preparing system is identical substantially.In sample-preparing system, disintegrating machine is its main parts, but due to its rotating speed higher, produce strong air-flow time broken, and because clash into coal sample, friction etc. also produces amount of heat in using, these all cause the loss of coal sample total moisture.
The moisture of coal is an important indicator in ature of coal valuation.Nowadays, most of coal-burning utilities coal clearing are with the net calorific value as received basis of coal for foundation, and the total moisture of coal not only affects the examination of coal quantity, and directly relevant to as received basis Lower heat value due to it, also can affect the inspection of quality of coal.But in existing Coal Quality is checked and accepted, coal sample total moisture value often have ignored coal and adopting the moisture loss in sample making course, then cause ature of coal to be valuated higher, enterprise's coal cost increases.
Utility model content
Coal sample total moisture value is accurately obtained in checking and accepting at coal, rationally carry out ature of coal valuation, reduce enterprise's coal cost, the utility model, by reasonably improving existing mechanical sampling prototype, proposes a kind of sampling apparatus realizing the moisture loss of on-line checkingi coal sample, rationally correction total moisture in coal value.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of can on-line monitoring coal sample total moisture loss sampling apparatus, comprise sampling system and sample-preparing system, described sampling system comprises Sampling Machine, elementary pay-off, described sample-preparing system comprises disintegrating machine, secondary pay-off, reduction device, elementary feeding belt is established in described elementary pay-off, described elementary feeding belt installs belt conveyer scale, the feed opening place of described disintegrating machine is connected with air extractor by pipeline, the connecting line of described air extractor and disintegrating machine is provided with and small-sizedly revolves a point separation vessel, the described small-sized connecting line revolving point separation vessel and air extractor is provided with humiture analyzer, the described small-sized discharging opening revolving point separation vessel is connected with secondary pay-off, described humiture analyzer, belt conveyer scale is all connected with data collector, described data collector is connected with main frame.In sampling apparatus described in the utility model, the air at air extractor continuous drawing disintegrating machine feed opening place, the air extracted carries a small amount of pulverized coal particle, pulverized coal particle revolves after point separation vessel is separated via small-sized, larger particle returns secondary pay-off, and carry out division in proportion through reduction device, humiture analyzer continues to detect via the small-sized air revolved after point separation vessel isolated by filtration, the humiture that the coal sample weighing data of data collector Real-time Collection belt conveyer scale and temperature monitor measure, and the data of collection are transferred to main frame, by main frame, inventory analysis is carried out to the data of collecting, the change of aerial temperature and humidity is converted to the moisture loss value of the coal sample of unit mass.
As preferably, described small-sized revolving between point separation vessel and humiture analyzer is provided with coal fine filter.Described coal fine filter can effectively filter via the small-sized granule coal dust revolving point separation vessel, and making by the air of humiture analyzer is pure air, then ensure that the accuracy of data determination.
Further, described Sampling Machine comprises sampling head, described elementary pay-off is provided with charging aperture and discharging opening, described discharging opening is connected with disintegrating machine, the feed opening of described disintegrating machine is connected to secondary pay-off, be provided with secondary feeding belt in described secondary pay-off, coal sample is collected and is stored in collection containers after secondary feeding belt feeding reduction device carries out division.Wherein, Sampling Machine is by sampling head samples of coal pulled and deliver on elementary feeding belt by coal sample by the charging aperture of elementary pay-off, after coal sample after weighing sends into crusher in crushing, send into reduction device division via secondary feeding belt, the residue coal sample after division is discharged by the rejected material mouth of secondary pay-off.
As preferably, above the charging aperture of described elementary pay-off, be provided with receiving hopper.The setting of described receiving hopper, on the elementary feeding belt that sampling head can be facilitated coal sample to be delivered in elementary pay-off.
The utility model utilizes above-mentioned sampling apparatus to carry out the method for coal sample total moisture loss on-line monitoring, comprises the following steps:
S1, starts sample-preparing system, utilizes air extractor to continue to extract the air at disintegrating machine feed opening place, and the data that data collector continuous collecting humiture analyzer measures also reach main frame;
S2, start sampling system, and coal sample delivered on the elementary feeding belt in elementary pay-off by the sampling head samples of coal pulled of Sampling Machine, data collector gathers the coal sample weighing data of belt conveyer scale and reaches main frame;
S3, according to the aerial temperature and humidity data at disintegrating machine feed opening place, determines time dependent curvilinear equation f (x) of aerial temperature and humidity;
S4, according to formula
the coal sample moisture loss value of unit of account quality, wherein, m is the coal sample quality of belt balance weighing, t
1-t
2for the time period measured, K is augmenting factor, and C is corrected value, and the site test that K, C value need carry out repeatedly Different factor impact before using this sampling apparatus is determined.
As preferably, in step S1, data collector carries out a data acquisition every 1-2s.The acquisition interval of 1-2s better can record the humiture change of air extractor extracting air.
As preferably, the computation process of step S3 and step S4 is completed by main frame.The computation process of step S3 and step S4 is completed by computing machine, can realize the moisture loss of the full-automatic on-line monitoring unit mass coal sample of sampling apparatus described in the utility model.
The utility model compared with the existing technology has the following advantages and effect:
1, the utility model is by transforming existing Coal Mechanical sampling apparatus, realizes the total moisture in coal loss monitoring in sampling apparatus, then for the total moisture correction in the ature of coal course of receiving provides foundation.
2, the utility model carries out rational correction to the total moisture of fire coal, can realize the accurate valuation of ature of coal, and that saves coal-burning utilities uses coal cost.
3, the utility model carrys out the coal sample total moisture penalty values of unit of account quality by the change of aerial temperature and humidity in Real-Time Monitoring coal sampling sample process, and detection and computing method are simply, reliably.In addition, improved sampling apparatus overall construction design is reasonable, easy for installation, can promote ature of coal receipt control effect better.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 be described in the utility model a kind of can the structural representation of sampling apparatus of on-line monitoring coal sample total moisture loss.
Label declaration: 1, Sampling Machine; 11, sampling head; 2, elementary pay-off; 21, elementary feeding belt; 22, belt conveyer scale; 23, receiving hopper; 3, disintegrating machine; 4, secondary pay-off; 41, secondary feeding belt; 42, rejected material mouth; 5, reduction device; 6, collection containers; 7, air extractor; 8, small-sizedly a point separation vessel is revolved; 9, humiture analyzer; 10, coal fine filter; 12, main frame; 13, data collector.
Embodiment
Be described in further detail the utility model below in conjunction with embodiment, following examples are that the utility model is not limited to following examples to explanation of the present utility model.
Embodiment 1: as shown in Figure 1, a kind of can on-line monitoring coal sample total moisture loss sampling apparatus, comprise sampling system and sample-preparing system, described sampling system comprises Sampling Machine 1, elementary pay-off 2, described sample-preparing system comprises disintegrating machine 3, secondary pay-off 4, reduction device 5, described Sampling Machine 1 comprises the sampling head 11 of samples of coal pulled, the elementary feeding belt 21 of transmission coal sample is provided with in described elementary pay-off 2, elementary feeding belt 21 installs belt conveyer scale 22, described elementary pay-off 2 is provided with charging aperture and discharging opening, the discharging opening of described elementary pay-off 2 is connected with disintegrating machine 3, the feed opening place of described disintegrating machine 3 is connected with air extractor 7 by pipeline, air extractor 7 and the connecting line at disintegrating machine 3 feed opening place are provided with and small-sizedly revolve point separation vessel 8, the described small-sized point separation vessel 8 that revolves is provided with humiture analyzer 9 with the connecting line of air extractor 7, the described small-sized discharging opening revolving point separation vessel 8 is connected with secondary pay-off 4, described humiture analyzer 9 is all connected with data collector 13 with belt conveyer scale 22, described data collector 13 is connected with main frame 12, the feed opening of described disintegrating machine 3 is connected to secondary pay-off 4, the secondary feeding belt 41 of transmission coal sample is provided with in described secondary pay-off 4, coal sample is sent into reduction device 5 through secondary feeding belt 41 and is collected after division in proportion and be stored in collection containers 6, the rejected material mouth 42 that the remaining coal sample of division delivers to secondary pay-off 4 by secondary feeding belt 41 is again discharged.
In sampling apparatus described in the utility model, air extractor 7 continues the air extracting disintegrating machine 3 feed opening place, the air extracted carries a small amount of pulverized coal particle, via small-sized revolve point separation vessel 8 be separated after, larger pulverized coal particle is got back on the secondary feeding belt 41 of secondary pay-off 4, data collector 13 continuous collecting humiture analyzer 9 measure via small-sized aerial temperature and humidity data of revolving after point separation vessel 8 separating and filtering, and send data to main frame 12, main frame 12 automatically completes data and stores and analyze, to the change of aerial temperature and humidity in sample making course adopted change into the total moisture penalty values of unit mass coal sample.
Embodiment 2: as shown in Figure 1, a kind ofly can the sampling apparatus of on-line monitoring coal sample total moisture loss and the difference of embodiment 1 to be, receiving hopper 23 is provided with above the charging aperture of described elementary pay-off 2, the setting of described receiving hopper 23, can be convenient to sampling head 11 and the coal sample of collection be delivered in elementary pay-off 4.
Embodiment 3: as shown in Figure 1, a kind ofly can the sampling apparatus of on-line monitoring coal sample total moisture loss and the difference of embodiment 1 or embodiment 2 to be, the described small-sized connecting line revolved between point separation vessel 8 and humiture analyzer 9 is provided with coal fine filter 10, described coal fine filter 10 can tackle further through small-sized revolve point separation vessel 8 be separated after air in granule coal dust, making by the air of humiture analyzer 9 is pure air, then ensure that the accuracy of data determination.
Described in the utility model embodiment 1, embodiment 2, embodiment 3 can on-line monitoring coal sample total moisture loss sampling apparatus in, the concrete structure of Sampling Machine 1, sampling head 11, reduction device 5 arranges and elementary feeding belt 21, secondary feeding belt 41 transmission process with reference to prior art, can repeat no more herein.
The total moisture value of coal sample is an important quality parameter in the coal sample course of receiving.The utility model is mainly considered to adopt in sample making course actual, there is the problem of coal sample total moisture loss, by reasonably improving existing sampling apparatus, realize the total moisture loss of sampling apparatus to coal sample to detect in real time, to carry out rational correction to the total moisture value of coal sample, then realize the valuation of reasonable ature of coal, reduce the utility model object of enterprise's coal cost.
Particularly, utilize embodiment 1, embodiment 2, method that sampling apparatus described in embodiment 3 carries out coal sample total moisture loss on-line monitoring, comprise the following steps:
S1, starts sample-preparing system, utilizes air extractor 7 to continue to extract the air at disintegrating machine 3 feed opening place, and the data that data collector 13 continuous collecting humiture analyzer 9 measures also reach main frame 12;
S2, start sampling system, and coal sample delivered on the elementary feeding belt 21 in elementary pay-off 2 by sampling head 11 samples of coal pulled of Sampling Machine 1, data collector 13 gathers the coal sample weighing data of belt conveyer scale 22 and reaches main frame 12;
S3, according to the aerial temperature and humidity data at disintegrating machine 3 feed opening place, determines time dependent curvilinear equation f (x) of aerial temperature and humidity;
S4, according to formula
the coal sample moisture loss value of unit of account quality, wherein, m is the coal sample quality that belt conveyer scale 22 is weighed, t
1-t
2for the time period measured, K is augmenting factor, and C is corrected value.Because the ature of coal situation of samples of coal pulled can not be identical, and by the impact of the various factors such as air-flow direction and speed in system, the site test that K, C value need be carried out repeatedly Different factor and be affected before using this sampling apparatus is determined.
In the method for above-mentioned coal sample total moisture loss on-line monitoring, data collector 13 described in step S1 carries out a data acquisition every 1-2s, the computation process of step S3 and step S4 is completed by main frame 12, adopt in sample making course whole, sampling apparatus can realize automatic monitoring and the analysis of the loss of coal sample total moisture.
In addition, it should be noted that, the specific embodiment described in this instructions, the shape, institute's title of being named etc. of its parts and components can be different.All equivalences of doing according to structure, feature and the principle described in the utility model inventional idea or simple change, be included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. one kind can on-line monitoring coal sample total moisture loss sampling apparatus, comprise sampling system and sample-preparing system, described sampling system comprises Sampling Machine (1), elementary pay-off (2), described sample-preparing system comprises disintegrating machine (3), secondary pay-off (4), reduction device (5), it is characterized in that, elementary feeding belt (21) is established in described elementary pay-off (2), described elementary feeding belt (21) installs belt conveyer scale (22), the feed opening place of described disintegrating machine (3) is connected with air extractor (7) by pipeline, the connecting line of described air extractor (7) and disintegrating machine (3) is provided with and small-sizedly revolves a point separation vessel (8), the described small-sized point separation vessel (8) that revolves is provided with humiture analyzer (9) with the connecting line of air extractor (7), the described small-sized discharging opening revolving a point separation vessel (8) is connected with secondary pay-off (4), described humiture analyzer (9), belt conveyer scale (22) is all connected with data collector (13), described data collector (13) is connected with main frame (12).
2. sampling apparatus according to claim 1, is characterized in that, described small-sized revolving between a point separation vessel (8) and humiture analyzer (9) is provided with coal fine filter (10).
3. sampling apparatus according to claim 1 and 2, it is characterized in that, described Sampling Machine (1) comprises sampling head (11), described elementary pay-off (2) is provided with charging aperture and discharging opening, described discharging opening is connected with disintegrating machine (3), the feed opening of described disintegrating machine (3) is connected to secondary pay-off (4), secondary feeding belt (41) is provided with in described secondary pay-off (4), coal sample is collected and is stored in collection containers (6) after secondary feeding belt (41) feeding reduction device (5) carries out division.
4. sampling apparatus according to claim 3, is characterized in that, is provided with receiving hopper (23) above the charging aperture of described elementary pay-off (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772535.0U CN205027769U (en) | 2015-09-30 | 2015-09-30 | But on -line monitoring coal sample total moisture loss gather and process a kind device |
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| CN201520772535.0U CN205027769U (en) | 2015-09-30 | 2015-09-30 | But on -line monitoring coal sample total moisture loss gather and process a kind device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223369A (en) * | 2015-09-30 | 2016-01-06 | 华电电力科学研究院 | A kind of can on-line monitoring coal sample total moisture loss sampling apparatus and monitoring method |
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- 2015-09-30 CN CN201520772535.0U patent/CN205027769U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223369A (en) * | 2015-09-30 | 2016-01-06 | 华电电力科学研究院 | A kind of can on-line monitoring coal sample total moisture loss sampling apparatus and monitoring method |
| CN105223369B (en) * | 2015-09-30 | 2017-09-08 | 华电电力科学研究院 | A kind of sampling apparatus and monitoring method for monitoring the loss of coal sample total moisture on-line |
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Granted publication date: 20160210 Effective date of abandoning: 20170908 |
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| AV01 | Patent right actively abandoned |