CN86200855U - Coal sampler - Google Patents
Coal sampler Download PDFInfo
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- CN86200855U CN86200855U CN 86200855 CN86200855U CN86200855U CN 86200855 U CN86200855 U CN 86200855U CN 86200855 CN86200855 CN 86200855 CN 86200855 U CN86200855 U CN 86200855U CN 86200855 U CN86200855 U CN 86200855U
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- coal
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Abstract
The utility model relates to an automatic coal sampler used on coal conveying belt. The utility model is characterized in that the device has five functions such as automatic timed coal sampling, automatic metal measuring and removing, crushing, compression and separation, and disposed coal loopbacks. The utility model is controlled by programme, and is the necessary equipment for accurate heating value calculating and composition analysis of coal in thermal power plant. The technical performance of the utility model is consistent with the requirement of standard code such as ISO1988 <hard coal-sampling>, GB474-83 <preparation method of coal sample>, and PS-V-1-83 <coal sampling>, the device can also be used for coal conveying with belt or similar material sampling in the industries such as industrial boiler, coal mine, etc.
Description
The utility model relates to a kind of automatic sampling device for coal conveying system that is used on the coal conveyer belt.
About gathering and processing coal sample from belt conveyer, did multiple research both at home and abroad, many embodiments are proposed, argumentation is all arranged in every document and standard, it is introduced generally only have sampling, fragmentation and three kinds of functions of division.The metal sundries damage equipment of carrying secretly in the coal sample, the coal sample system of gathering and processing that Ramey company produces increases assorted iron detecting device is housed, when assorted iron detecting device is found out when in the materials flow section that will take a sample assorted iron being arranged, just notify microprocessor to make the primary sample delayed startup immediately, go into to get the sample-preparing system damage equipment to avoid assorted flowing molten iron, but this systematic comparison complexity is invested also high.
Sampling head is divided into sampling of coal breakage stream and coal transportation belt up-sampling dual mode down.Sampling has chute intercepting formula, hopper intercepting formula, batcher intercepting formula, swing-arm type etc. in coal breakage flows down.Coal transportation belt up-sampling mode has electromagnetic type, fluid pressure type, Weight type.
Coal sample reduction machinery is commonly used disintegrating machines such as hammer, jaw formula, pair roller type.
Division riffle commonly used or mechanical reduction device.
The purpose of this utility model provides a kind of automatic sampling device for coal conveying system that is used on the coal transportation belt, and it has sampling, fragmentation, division, metal surveys and remove and abandon five kinds of functions of coal loopback, and simple in structure, degree of accuracy good, dependable performance, be convenient to operation maintenance.In order to achieve the above object, the measure taked of the utility model is as follows:
The sampling of coal is finished by sampling thief, and the principal feature of sampling thief is: sampling arm driving element and promote thief rod is the employing linear electric motors, can save reducing gear and gearing, and it is simple in structure, be active in one's movements, speed is fast, thrust is big, the timing automatic sampling.
The crushing division machine is adopted in broken and division.
For the metal sundries of avoiding carrying secretly in the coal sample damages plant equipment, metal is housed in this device surveys except that device, be to form by metal survey inspection device and electric rotating plate door, can reject the coal sample that has metal sundries automatically, simple and reliable for structure.
Abandon the coal loopback and adopt minitype vertical type annular embedded scraper hoister.
Automatic program control is made up of control elements such as contactor, the time relay, auxiliary reclays, also can adopt system controlled by computer.
The utility model is gathered and processed the coal sample on being used for coal conveyer belts such as thermal power plant, Industrial Boiler, colliery, also can be used for the sample of gathering and processing of the similar flow process of other industry.
Major advantage of the present utility model is:
1. have that timing automatic sampling, metal are surveyed and removed, fragmentation, division, abandon five kinds of functions of coal loopback, applicable scope is bigger, the automaticity height.
2. can solve the high coal sample of water percentage at crushing division and abandon the problem that coal loopback process is easily blocked.
3. can prevent that metal sundries from entering the disintegrating machine damage equipment.
4. abandon coal and can send coal conveyer belt automatically back to, package unit can be put at lower by Fabric, so that safeguard and get coal sample.
Big, the speed of linear electric motors sampling head thrust fast, be active in one's movements, dependable performance, simple in structure.
The utility model will be further described below with reference to accompanying drawing.
Fig. 1 is the front view of this device.
Fig. 2 is the left view of this device.
See figures.1.and.2, sampling thief (2) by support (8), sampling arm (3), promote connecting rod (4), drive sampling arm linear electric motors (5), thief rod (6), scrape coal shovel (7), promote the linear electric motors (1) of scraping coal shovel etc. and form.Support is made with channel-section steel, is divided into upper, middle, and lower part.Upper bracket is supported sampling arm (3), lower carriage lower end and the welding of terrace embedded iron parts, lower carriage upper end and coal conveyer belt framework and the welding of medium-height trestle lower end; Medium-height trestle top is connected with bolt with upper bracket.Linear electric motors (5) are housed on the medium-height trestle are connected do driving usefulness with promotion connecting rod (4), be connected with sampling arm (3) by through-drive, sampling arm (3) is equipped with the thief rod (6) of scraping coal shovel (7) and linear electric motors (1) drive.Linear electric motors during coal sampling (5) drive link (4) drive the horizontal coal conveyer belt of scraping of sampling arm, coal sample is scraped to coal bunker promptly return.Return and scrape coal for preventing to scrape coal shovel (7), at this moment the linear electric motors (1) on the sampling arm (3) promptly drive and scrape coal shovel and promote, and utilize gravity fall to restPose after resetting, and promptly finish once sampling, repeat above-mentioned action with post-sampling.Sampling thief is the timing automatic sampling, and the sampling interval time is adjustable arbitrarily in 3～10 minutes.The coal sample of adopting is by gravity fall, and the metal of flowing through is surveyed and removed device (9) to crushing division machine (11), carries out the crushing division sample preparation, abandons coal and returns coal conveyer belt through abandoning coal loopback device (10).
Metal is surveyed except that device (9) and is made up of JTJ-3 type metal spy inspection device (13) and electric rotating plate door (14), and it is simple in structure, is active in one's movements.Flow through metal when visiting inspection device (13) when being entrained with metal sundries in the coal sample, produce the induced electricity potential difference, send differential signal, amplify through detection, low frequency, trigger sends the action command signal, electric rotating plate door (14) action will have the coal sample of metal sundries rejects automatically, makes it not enter the crushing division machine.The electric rotating plate door is promoted by linear electric motors, and from horizontal reset.
Crushing division machine (11) is mainly by vibration layering screen (15) with have conical disc mill (16) formation of division dish.Coal sample is sifted out less than the 3mm coal sample through vibration layering screen (15) branch and is flowed through conical disc mill tower internal cavity to the division of division dish during work, greater than the division after the conical disc mill fragmentation of 3mm coal sample.
Abandon coal loopback device and adopt approved product MLZ10 type embedded scraper transporter to promote the foldback coal conveyer belt, its height is selected according to the installation site.
Complete machine is by programmed control cabinet (12) follow procedure Control work.
Claims (2)
1, a kind of device that is used for from belt conveyer, gathering and processing automatically coal sample, it comprises that sampling thief (2), metal survey remove device (9), coal sample reduction division machine (11), programmed control cabinet (12), it is characterized in that: also increased in this device and abandoned coal loopback device (10), abandoning coal loopback device is annular embedded scraper transporter, metal is surveyed and is removed device by metal survey inspection device (13) and electric rotating plate door (14) formation, and sampling thief adopts linear motor driving.
2, device according to claim 1 is characterized in that said coal sample reduction division machine is by vibration layering screen (15) with have hollow cone mill (16) formation of division dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86200855 CN86200855U (en) | 1986-02-22 | 1986-02-22 | Coal sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86200855 CN86200855U (en) | 1986-02-22 | 1986-02-22 | Coal sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86200855U true CN86200855U (en) | 1987-04-15 |
Family
ID=4804764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86200855 Withdrawn CN86200855U (en) | 1986-02-22 | 1986-02-22 | Coal sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86200855U (en) |
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 |
| CN108036963A (en) * | 2017-11-17 | 2018-05-15 | 湖南三德科技股份有限公司 | A kind of method of sampling and sampling apparatus for evading compartment lacing wire |
| CN109677858A (en) * | 2018-12-29 | 2019-04-26 | 济南星丰机电科技有限公司 | A kind of belt ring road loopback of material device |
-
1986
- 1986-02-22 CN CN 86200855 patent/CN86200855U/en not_active Withdrawn
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 |
| CN108036963A (en) * | 2017-11-17 | 2018-05-15 | 湖南三德科技股份有限公司 | A kind of method of sampling and sampling apparatus for evading compartment lacing wire |
| CN109677858A (en) * | 2018-12-29 | 2019-04-26 | 济南星丰机电科技有限公司 | A kind of belt ring road loopback of material device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |