CN203178090U - Accurate sampling device for realizing respective sampling of coals for different boilers - Google Patents
Accurate sampling device for realizing respective sampling of coals for different boilers Download PDFInfo
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- CN203178090U CN203178090U CN 201320214151 CN201320214151U CN203178090U CN 203178090 U CN203178090 U CN 203178090U CN 201320214151 CN201320214151 CN 201320214151 CN 201320214151 U CN201320214151 U CN 201320214151U CN 203178090 U CN203178090 U CN 203178090U
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Abstract
The utility model discloses an accurate sampling device for realizing respective sampling of coals for different boilers. The accurate sampling device comprises a conveyor belt for conveying the coals, a sampling device arranged above the conveyor belt, a plurality of coal plough devices which are arranged on the conveyor belt and correspond to coal inlets of all the boilers, and a control center for controlling the sampling device to sample; and a movement signal wire for monitoring the movement of the coal plough devices is connected between the control center and each coal plough device. According to the accurate sampling device disclosed by the utility model, the movement signal wire can ensure the current specific boilers which are particularly subjected to coal feeding and the sampling is carried out according to a time difference of the movement of the coal plough devices, so as to guarantee that the sampled coals are coals which particularly enter the boilers; and therefore, the integral monitoring on the particular boilers and the used coals is finished and the important evidences for accident analysis and reasonable installation and production of the boilers are provided.
Description
Technical field
The utility model relates to thermoelectric field, is specifically related to a kind of sampling apparatus of realizing that a plurality of boiler reality of cogeneration plant are accurately sampled with coal.
Background technology
In the prior art, general cogeneration plant all is provided with a plurality of boilers simultaneously or works in batches, and transmitted by same conveying belt as the coal combustion of each boiler, when the defeated coal of the corresponding boiler of conveying belt process transmits mouth, by coal plough the coal on the travelling belt is diverted to or dam transmit mouthful to defeated coal in, thereby realize distributing with coal of different boilers.Wherein in order to understand the combustion case of each boiler, need sample and analyze the coal on the conveying belt, sampling apparatus of the prior art is arranged on the conveying belt front end, it is the place ahead of each coal plough, the coal of so each sampling has not also known to enter in that concrete boiler, when each boiler being burnt statistics, error wherein is bigger like this.
The utility model content
Can not distinguish the problem of sampling for each steam coal of cogeneration plant in the solution prior art, the utility model provides a kind of sampling apparatus of the different steam coals of can accurately sampling.Concrete scheme is as follows: a kind of accurate sampling apparatus of realizing that different steam coals are sampled respectively, comprise the conveying belt of transporting coal, be arranged on the sampling apparatus of conveying belt top, be arranged on the conveying belt and a plurality of coal ploughs corresponding with each boiler coal feed point, the control center of control sampling apparatus sampling, it is characterized in that, be connected with the actuating signal line that monitors the coal plough action between described control center and each coal plough.
Be convenient sampling: described sampling apparatus comprises the sampling head for sampling, drive sampling head work Sampling Machine, deposit the collection sample bucket of sample coal, analyze the analytical equipment of sample coal.
Be conveniently sampling management: described collection sample bucket has a plurality of and divides according to the quantity of boiler is corresponding, and described control center puts into corresponding collection sample bucket according to the signal driving Sampling Machine of different coal ploughs with the sample coal of sampling head collection.
Be convenient sampling: described conveying belt comprises outdoor conveying belt and indoor conveying belt, and the coal on the outdoor conveying belt is discharged on the indoor conveying belt by coal spout, and what described sampling head was arranged on coal spout connects the coal end.
The main recovery that makes things convenient for the sample coal: the recovery tube that is provided with the unnecessary sample coal of discharging between described Sampling Machine and the indoor conveying belt.
The action of coal plough is subjected to the control of whole cooker furnace control system in the prior art, and do not have concrete contacting between the control center of sampling head, be to be separate between coal plough action and the sampling head action, the utility model utilizes the actuating signal line can confirm the current boiler that specifically advances coal, sample according to the mistiming of coal plough action again, thereby the coal that guarantees sampling namely is the coal that enters concrete boiler, thereby the coal to concrete boiler and use forms complete monitoring, provides important evidence to the crash analysis of boiler and installation production rationally.When collection sample bucket of the prior art is deposited the sample coal, all deposit in order, do not form specific corresponding relation, the utility model is controlled the rotation of collection sample bucket, after sampling at different boilers, put into the collection sample bucket of appointment, avoided obscuring each other.This programme does not change the structure of original equipment and has realized the accurate sampling of steam coal.
Description of drawings
Fig. 1 structural representation of the present utility model;
Fig. 2 collects the schematic top plan view of sample bucket;
Label declaration in the accompanying drawing: 1-conveying belt, the outdoor conveying belt of 101-, the indoor conveying belt of 102-, 103-coal spout, 2-sampling apparatus, 201-sampling head, 202-Sampling Machine, 203-recovery tube, 204-collection sample bucket, 205-analytical equipment, 3-control center, 4-coal plough, 5-boiler, 6-actuating signal line.
Embodiment
As shown in Figure 1, the accurate sampling apparatus that the different steam coals of realization of the present utility model are sampled respectively, comprise the conveying belt 1 of transporting coal, be arranged on the sampling apparatus 2 of conveying belt top, be arranged on the conveying belt 1 and a plurality of coal ploughs 4 corresponding with each boiler 5 coal feed points, the control center 3 of control sampling apparatus 2 samplings is connected with the actuating signal line 6 that monitors the coal plough action between described control center 3 and each coal plough 4.
The action of the actuating signal line 6 monitoring coal ploughs 4 that this programme utilization is connected with coal plough 4, receive that in control center 3 corresponding coal plough 4 drives sampling apparatus 2 again when moving and samples, utilize the coal plough 4 corresponding with concrete boiler 5 to confirm to enter the coal of this boiler 5, the coal that makes instant sampling is with on the boiler of specifically use is corresponding.During work, after conveying belt 1 transmits into coal, each boiler 5 drives corresponding coal plough 4 according to the situation with coal the coal on the conveying belt 1 is shunted, this moment, the action of coal plough 4 can be sent to control center 3, control center 3 confirms the concrete boiler 5 that uses according to the signal of actuating signal line 6 transmission of this coal plough 4,2 work of confirmation signal rear drive sampling apparatus, set up sign between the sample coal of 3 pairs of samplings this moment of control center and the boiler of its use, when the coal plough 4 of another boiler moves, control center 3 sets up sign again with corresponding boiler in sampling, the above-mentioned course of work circulates, the relation between boiler different conditions and the use coal is conveniently grasped and analyzed to realization to the supervision of each steam coal state.
For convenience of sampling, the sampling apparatus 2 of this programme comprises the sampling head 201 for sampling, the Sampling Machine 202 that driving sampling head 201 is worked, the collection sample bucket 204 of depositing the sample coal, the analytical equipment 205 of analysis sample coal.The order that Sampling Machine 202 is accepted control center 3 during work drives sampling head 201 samplings again, after sampling head 201 samplings sample coal is put into collection sample bucket 204, and contacting of sample coal and corresponding boiler analyzed and set up to analytical equipment 205 by taking out the sample coal in the collection sample bucket 204.Distinguish for convenience, the collection sample bucket 204 of this programme has a plurality of and divides according to the quantity of boiler 5 is corresponding, and described control center 3 puts into corresponding collection sample bucket 204 according to the sample coal that the signal driving Sampling Machine 202 of different coal ploughs 4 is gathered sampling head 201.As shown in Figure 2, according to the setting of sampling time and sampling quantity, per three collection sample bucket 204 corresponding boilers 5 are set, corresponding like this boiler 5 can obtain confirming at the sample coal of different time collection from corresponding collection sample bucket 204.Be to guarantee the accuracy of sampling, the conveying belt 1 of this programme comprises outdoor conveying belt 101 and indoor conveying belt 102, and the coal on the outdoor conveying belt 101 is discharged on the indoor conveying belt 102 by coal spout 103, and what described sampling head 201 was arranged on coal spout 103 connects the coal end.Because when the coal on most outdoor conveying belt 101 is discharged into indoor conveying belt 102, need carry out dust suppression handles, it is to utilize sprayer to carry out the trickle dust suppression that general dust suppression is handled, and the coaly attitude when therefore the sample coal of sampling uses with boiler herein is consistent, can reduce analytical error.For handling unnecessary sampling coal, this programme is provided with the recovery tube 203 of the unnecessary sample coal of discharging between Sampling Machine 202 and indoor conveying belt 102.Because the sample coal amount that sampling head 201 is gathered is fixed, but the coal amount that analytical equipment 205 is used is less, therefore utilize recovery tube 203 that analytical equipment 205 is collected the remaining sample coal in back and be discharged into again on the indoor conveying belt 102, to cut the waste.
Embodiment 1:
As shown in Figure 1, boiler has four, the interval is 50 meters between each boiler, each boiler correspondence on indoor conveying belt is provided with 6 coal ploughs, now 6 signal parallel connections with same boiler are a signal, signal uses passive bus, and each signal in parallel is delivered in the Sampling Machine switch board from the defeated program control chamber of coal by shielded cable.
2, the corresponding change program of Sampling Machine satisfies different boiler coal samples and enters in the different collection sample buckets, 12 collection sample buckets is divided into 4 groups, 3 every group collection sample buckets, every group of corresponding boiler of collection sample bucket.And corresponding No. 1 stove institute coal sampling of coal sample of 1,2,3 collection sample buckets; 4, corresponding No. 2 stove institute coal samplings of coal sample of 5,6 collection sample buckets; 7, corresponding No. 3 stove institute coal samplings of coal sample of 8,9 collection sample buckets; 10, corresponding No. 4 stove institute coal samplings of coal sample of 11,12 collection sample buckets.
3, branch stove signal lag parameter is set, adjust and distinguish the coal sample signal, guarantee that branch stove coal sample is representative: because each boiler run coal bin has certain distance according to the stove coal Sampling Machine of going into of installing, according to conveying belt travelling speed (2.5m/s) and each boiler run coal bin coal plough to the distance of going into stove coal Sampling Machine.Manually take method to the regulation of time base sampling according to GB GB475-2008 sample for commercial coal, if six coal ploughs of No. 1 stove run coal bin (according to going into stove coal sampling installation site farthest) signal feedback is to the control center of stove coal sampling apparatus, Sampling Machine is sampled after receiving information immediately, sampling time this moment is decided to be 0S, then No. 2, No. 3, then carry out delay process apart from No. 1 stove run coal bin apart from a according to each stove run coal bin during coal sample that No. 4 stoves are adopted first point, concrete by time-delay a ÷ 2.5(S) sampling, No. 2 stove time-delay 20S, No. 3 stove time-delay 40S, No. 4 stove time-delay 60S have so just realized that the stove coal divides stove sampling time base consistent.
Specifically
The above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, anyly be familiar with the technician of this patent in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned prompting is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of the utility model scheme.
Claims (5)
1. accurate sampling apparatus of realizing that different steam coals are sampled respectively, comprise the conveying belt (1) of transporting coal, be arranged on the sampling apparatus (2) of conveying belt (1) top, being arranged on conveying belt (1) goes up and a plurality of coal ploughs (4) corresponding with each boiler coal feed point, the control center (3) of control sampling apparatus sampling, it is characterized in that, be connected with the actuating signal line (6) that monitors the coal plough action between described control center (3) and each coal plough (4).
2. accurate sampling apparatus as claimed in claim 1, it is characterized in that, described sampling apparatus (2) comprises the sampling head (201) for sampling, drive sampling head (201) work Sampling Machine (202), deposit the collection sample bucket (204) of sample coal, analyze the analytical equipment (205) of sample coal.
3. accurate sampling apparatus as claimed in claim 2, it is characterized in that, described collection sample bucket (204) has a plurality of and divides according to the quantity of boiler (5) is corresponding, and described control center (3) puts into corresponding collection sample bucket (204) according to the sample coal that the signal driving Sampling Machine (202) of different coal ploughs (4) is gathered sampling head (201).
4. accurate sampling apparatus as claimed in claim 3, it is characterized in that, described conveying belt (1) comprises outdoor conveying belt (101) and indoor conveying belt (102), coal on the outdoor conveying belt (101) is discharged on the indoor conveying belt (102) by coal spout (103), and what described sampling head (201) was arranged on coal spout (103) connects the coal end.
5. accurate sampling apparatus as claimed in claim 4 is characterized in that, is provided with the recovery tube (203) of the unnecessary sample coal of discharging between described Sampling Machine (202) and the indoor conveying belt (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214151 CN203178090U (en) | 2013-04-23 | 2013-04-23 | Accurate sampling device for realizing respective sampling of coals for different boilers |
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| CN 201320214151 CN203178090U (en) | 2013-04-23 | 2013-04-23 | Accurate sampling device for realizing respective sampling of coals for different boilers |
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| CN203178090U true CN203178090U (en) | 2013-09-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226125A (en) * | 2016-07-22 | 2016-12-14 | 华北电力大学 | A kind of high accuracy as-fired coal sampling and weigh verification integral system and method |
| CN106289854A (en) * | 2016-07-29 | 2017-01-04 | 福建省联盛纸业有限责任公司 | A kind of paper mill steam coal sampler |
| CN109323739A (en) * | 2018-11-13 | 2019-02-12 | 贵州金元茶园发电有限责任公司 | Separate unit boiler coal input quantity calculation method |
-
2013
- 2013-04-23 CN CN 201320214151 patent/CN203178090U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226125A (en) * | 2016-07-22 | 2016-12-14 | 华北电力大学 | A kind of high accuracy as-fired coal sampling and weigh verification integral system and method |
| CN106289854A (en) * | 2016-07-29 | 2017-01-04 | 福建省联盛纸业有限责任公司 | A kind of paper mill steam coal sampler |
| CN106289854B (en) * | 2016-07-29 | 2017-04-12 | 福建省联盛纸业有限责任公司 | Coal sampling device for paper mill boiler |
| CN109323739A (en) * | 2018-11-13 | 2019-02-12 | 贵州金元茶园发电有限责任公司 | Separate unit boiler coal input quantity calculation method |
| CN109323739B (en) * | 2018-11-13 | 2021-06-18 | 贵州西能电力建设有限公司 | Method for calculating coal feeding amount of single boiler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 |