CN102928272A - Briquette coal sample making tool and method - Google Patents
Briquette coal sample making tool and method Download PDFInfo
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- CN102928272A CN102928272A CN2012104094329A CN201210409432A CN102928272A CN 102928272 A CN102928272 A CN 102928272A CN 2012104094329 A CN2012104094329 A CN 2012104094329A CN 201210409432 A CN201210409432 A CN 201210409432A CN 102928272 A CN102928272 A CN 102928272A
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Abstract
The invention discloses a briquette coal sample making tool and method. The method comprises the following steps of: putting a wet coal powder between an upper pressing head and a lower pressing head in a coal pressing tube by using the briquette coal sample making tool which comprises the upper pressing head, the lower pressing head, a coal pressing tube spring and a sampling device; applying a load to the upper pressing head downwards by using a press machine; compacting the wet coal powder so as to form a coal sample and then stopping the applying of the load; and then unloading the spring and the lower pressing head; and pressing the upper pressing head downwards, so as to press the coal sample out of the coal pressing tube. According to the invention, technical defects in the traditional briquette coal sample making are solved; and the effective coal sample making tool and method are provided, so that the uniformity and making success rate of the briquette sample are increased.
Description
Technical field
The present invention relates to a kind of moulded coal coal sample tools and method, mainly be applicable to the making of the used moulded coal coal sample of indoor laboratory.
Background technology
Mainly have the following disadvantages in the method for making the moulded coal coal sample in the past: (1) is in the process of making moulded coal, for ease of moulding, often need in coal dust, to mix a certain amount of adjuvant, if what add is the material that is similar to oil or resin and so on, these materials can't be removed after making the moulded coal coal sample, can cause the change of coal sample physico-mechanical properties; (2) made in the process of moulded coal coal sample in the past, with be the coal pipe of a bottom seal, the coal dust of mixed chemical adjuvant is added in the coal pipe, and with a seaming chuck under external load function from the top mouth of coal pipe to pressing down, and produce displacement downwards the coal dust in the coal pipe is pressed into the moulded coal coal sample, this way can cause coal sample, and up and down the density of two end portions is not identical, has reduced the whole homogenieity of coal sample.
Summary of the invention
The objective of the invention is to solve the technological deficiency that moulded coal coal sample is in the past made, and a kind of effective coal sample tools and method are provided, with the uniformity coefficient that improves the moulded coal coal sample with produce success ratio.
For achieving the above object, the present invention adopts following technical scheme: a kind of moulded coal coal sample tools, comprise upper and lower penetrating pressure coal pipe and the seaming chuck that is slidingly matched with pressure coal inside pipe wall, the push-down head that also comprises one " protruding " font, the projection of push-down head is inserted in the end mouth of pressing the coal pipe, the side of projection fits with the inwall of pressing the coal pipe, and push-down head is provided with the spring that is sheathed on protruding outer ring, and spring is positioned at the bottom face downside of pressing the coal pipe.
Moulded coal coal sample tools also comprise the sampler of tubulose, are provided with the draw-in groove suitable with pressing edge, outer ring, coal pipe bottom around the mouth inside edge, top of sampler.
Moulded coal coal sample method for making, (1) prepares first moulded coal coal sample tools as claimed in claim 1, wet coal dust is put between the upper and lower pressure head of pressing the coal pipe, (2) utilize pressing machine downward imposed load on seaming chuck, the coal dust compacting of will wetting stops imposed load after forming coal sample, (3) then unload lower spring and push-down head, press pressure head downwards, coal sample is extruded press the coal pipe.
Described wet coal dust is the potpourri of coal dust and distilled water.
In step (three), the sampler for preparing a tubulose, mouth inside edge, top around sampler is provided with the draw-in groove suitable with pressing edge, outer ring, coal pipe bottom, after unloading lower spring and push-down head, press coal pipe bottom outer edge to be positioned in the draw-in groove, press again pressure head downwards, will press the coal sample in the coal pipe to be depressed in the sampler, at last coal sample is taken out from sampler, finish the making of coal sample.
In step (two), pressing machine applies at least load of 100MPa at seaming chuck, will wet the coal dust compacting and keep load more than 30 minutes after form coal sample.
In step (three), will press the coal pipe to be placed on the sampler after, with pressing coal pipe and sampler to place on the payload platform of electronic tensile machine, utilize electronic tensile machine to press down seaming chuck with the speed of 200-300mm/min, coal sample is pressed in the sampler.
In step (), the outer wall with seaming chuck is wiped with lubricating oil first.
Moulded coal coal sample tools of the present invention and method have following beneficial effect: (1) is for avoiding the difference of coal sample two ends packing, upper and lower two pressure heads of design compress coal dust simultaneously in moulded coal coal sample tools, just can guarantee that thus coal sample integral body especially has uniform Density Distribution in two ends, guarantee the homogenieity of coal sample.(2) for avoiding in making moulded coal coal sample process, being subjected to the impact of adjuvant, in the process of making the moulded coal coal sample, be pure water with oil or the resene substitution of materials in pulverized coal particle, added in the past, pure water places after coal sample is made in the drying box and can vapor away, and has therefore just avoided the impact of adjuvant on the coal sample physico-mechanical properties.
Moulded coal coal sample tools of the present invention and method can provide a kind of convenient and swift, with low cost, indoor coal sample method for making that success ratio is high for numerous scientific research personnel, have saved the sample preparation time, have improved work efficiency.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation when getting coal sample of the present invention.
Embodiment
Embodiment 1:
By a kind of moulded coal coal sample tools illustrated in figures 1 and 2, comprise upper and lower penetrating pressure coal pipe 2 and be used for inserting pressure coal pipe 2 and push up in the mouth and the seaming chuck 1 of downward compacting pressure coal pipe 2 interior wet coal dusts 3 and the push-down head 5 of " protruding " font.
Pressing coal pipe 2 is steel pipe, seaming chuck 1 is made of the vertical plunger that top briquetting and the top briquetting downside on top sets firmly, seaming chuck 1 is " T " font, the plunger of seaming chuck 1 inserts from the top mouth of pressing coal pipe 2, the diameter of plunger is suitable with the internal diameter of pressing coal pipe 2, the outer wall of plunger fits with the inwall of pressing coal pipe 2, and seaming chuck 1 is slidingly matched with pressing coal pipe 2 inwalls by plunger.
The projection of push-down head 5 is inserted in the end mouth of pressing coal pipe 2, and the side of projection fits with the inwall of pressing coal pipe 2, and push-down head 5 is provided with the spring 4 that is sheathed on protruding outer ring, and spring 4 is positioned at the bottom face downside of pressing coal pipe 2, the step place of push-down head 5.Spring 4 is arranged at push-down head 5 and presses between the coal pipe 2, push-down head 5 is separated with pressing coal pipe 2, when imposed load, two pressure heads compress wet coal dust 3 simultaneously, just can guarantee that thus coal sample 6 has uniform Density Distribution, guaranteed the homogenieity of coal sample 6, to avoid the difference of coal sample 6 two ends packings.
Moulded coal coal sample 6 tools also comprise the sampler 7 of tubulose, sampler 7 also is penetrating up and down, mouth inside edge, top around sampler 7 is provided with the draw-in groove 8 suitable with pressing edge, outer ring, coal pipe 2 bottom, can will press the bottom of coal pipe 2 to insert fully in this draw-in groove 8, press the internal diameter of coal pipe 2 less than the internal diameter of sampler 7, press the end mouth of coal pipe 2 relative with sampler 7 mouths of pipe.
Embodiment 2:
Moulded coal coal sample method for making as depicted in figs. 1 and 2 comprises the steps:
(1) get the wet coal dust of certain mass, take by weighing an amount of distilled water with electronic balance and measuring cup according to certain ratio, coal dust 3 and distilled water are mixed becomes wet coal dust, and in order to making the usefulness of moulded coal coal sample 6, wet coal dust is coal dust 3 and the potpourri of distilled water; Prepare as described in Example 1 moulded coal coal sample tools and installation, installation process is as follows: the protruding outer ring that spring 4 is enclosed within push-down head 5, and then will press coal pipe 2 to place on spring 4 and the push-down head 5, take by weighing an amount of wet coal dust with electronic balance and place in the pressure coal pipe 2 of making coal sample 6, and with iron staff with it tamping; Then the outer wall of seaming chuck 1 is spread lubricating oil, can reduce like this friction between seaming chuck 1 and pressure coal pipe 2 inwalls, the plunger of seaming chuck 1 is inserted in the top mouth of pressing coal pipe 2, and make the upper surface maintenance level of seaming chuck 1, at this moment wet coal dust is in pressing coal pipe 2, between the upper and lower pressure head 5.
(2) mounted moulded coal coal sample 6 tools in the step () are placed on the platform of pressing machine, utilize pressing machine on the briquetting of the top of seaming chuck 1, to apply the load of 100MPa downwards, with the wet coal dust compacting of pressing in the coal pipe 2, and keep load to form moulded coal coal sample 6 more than 30 minutes, then stop imposed load.Certainly, invention is not limited to above-mentioned form, and the load that pressing machine is applied on the seaming chuck 1 also can be greater than 100MPa, as long as be not less than 100MPa.
(3) then unload lower spring 4 and push-down head 5, take out the as described in Example 1 sampler 7 of moulded coal coal sample 6 tools, to press coal pipe 2 bottom outer edges to be positioned in the draw-in groove 8 of sampler 7, after will pressing coal pipe 2 to be placed on the sampler 7, to press coal pipe 2 and sampler 7 to place on the payload platform of electronic tensile machine, utilize electronic tensile machine to press down seaming chuck 1 with the speed of 200-300mm/min, coal sample 6 is extruded coal pipes 2 and be depressed in the sampler 7, at last coal sample 6 is taken out from sampler 7, finish the making of coal sample 6.
Moulded coal coal sample 6 tools provided by the present invention and method can provide a kind of convenient and swift, with low cost, indoor coal sample 6 method for makings that success ratio is high for numerous scientific research personnel, have saved the sample preparation time, have improved work efficiency.
Claims (8)
1. moulded coal coal sample tools, comprise upper and lower penetrating pressure coal pipe and the seaming chuck that is slidingly matched with pressure coal inside pipe wall, it is characterized in that: the push-down head that also comprises one " protruding " font, the projection of push-down head is inserted in the end mouth of pressing the coal pipe, the side of projection fits with the inwall of pressing the coal pipe, push-down head is provided with the spring that is sheathed on protruding outer ring, and spring is positioned at the bottom face downside of pressing the coal pipe.
2. moulded coal coal sample tools as claimed in claim 1, it is characterized in that: moulded coal coal sample tools also comprise the sampler of tubulose, are provided with the draw-in groove suitable with pressing edge, outer ring, coal pipe bottom around the mouth inside edge, top of sampler.
3. moulded coal coal sample method for making, it is characterized in that: (one) prepares first moulded coal coal sample tools as claimed in claim 1, wet coal dust is put between the upper and lower pressure head of pressing the coal pipe, (2) utilize pressing machine downward imposed load on seaming chuck, the coal dust compacting of will wetting stops imposed load after forming coal sample, (3) then unload lower spring and push-down head, press pressure head downwards, coal sample is extruded press the coal pipe.
4. moulded coal coal sample method for making as claimed in claim 3, it is characterized in that: described wet coal dust is the potpourri of coal dust and distilled water.
5. such as claim 3 or 4 described moulded coal coal sample method for makings, it is characterized in that: in step (three), the sampler for preparing a tubulose, mouth inside edge, top around sampler is provided with the draw-in groove suitable with pressing edge, outer ring, coal pipe bottom, after unloading lower spring and push-down head, presses coal pipe bottom outer edge to be positioned in the draw-in groove, press again pressure head downwards, with pressing the coal sample in the coal pipe to be depressed in the sampler, at last coal sample is taken out from sampler, finish the making of coal sample.
6. moulded coal coal sample method for making as claimed in claim 5, it is characterized in that: in step (two), pressing machine applies at least load of 100MPa at seaming chuck, will wet the coal dust compacting and keep load more than 30 minutes after form coal sample.
7. moulded coal coal sample method for making as claimed in claim 6, it is characterized in that: in step (three), after will pressing the coal pipe to be placed on the sampler, to press coal pipe and sampler to place on the payload platform of electronic tensile machine, utilize electronic tensile machine to press down seaming chuck with the speed of 200-300mm/min, coal sample is pressed in the sampler.
8. moulded coal coal sample method for making as claimed in claim 7, it is characterized in that: in step (), the outer wall with seaming chuck is wiped with lubricating oil first.
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| CN2012104094329A CN102928272A (en) | 2012-10-24 | 2012-10-24 | Briquette coal sample making tool and method |
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| CN2012104094329A CN102928272A (en) | 2012-10-24 | 2012-10-24 | Briquette coal sample making tool and method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749012A (en) * | 2015-04-09 | 2015-07-01 | 常州大学 | High-efficiency bituminous coal sample block making device |
| CN105158043A (en) * | 2015-10-22 | 2015-12-16 | 中国矿业大学(北京) | Prefabricated stratification briquette coal and production method thereof |
| CN105510176A (en) * | 2016-01-08 | 2016-04-20 | 河南理工大学 | Coal sample gas negative pressure desorption experimental system |
| CN105510103A (en) * | 2016-02-01 | 2016-04-20 | 安徽理工大学 | Coal briquette sample preparation mold |
| CN105738178A (en) * | 2016-04-07 | 2016-07-06 | 安徽理工大学 | Briquette coal sample preparation device |
| CN105823667A (en) * | 2016-05-20 | 2016-08-03 | 河南理工大学 | Soft coal rock sample preparation system and method |
| CN106353159A (en) * | 2016-09-08 | 2017-01-25 | 华北科技学院 | Apparatus and method for manufacturing coal sample by hybrid hot-pressing |
| CN106404497A (en) * | 2016-12-12 | 2017-02-15 | 安徽理工大学 | Three-in-one briquette pressing mould |
| CN106525525A (en) * | 2016-10-21 | 2017-03-22 | 中联煤层气国家工程研究中心有限责任公司 | Method for preparing artificial coal core standard sample |
| CN107389408A (en) * | 2017-08-17 | 2017-11-24 | 中国建筑东北设计研究院有限公司 | A kind of triaxial test sample preparation device and method for making sample |
| CN107907465A (en) * | 2017-11-20 | 2018-04-13 | 华北科技学院 | For detecting the experimental provision and method of drilling surrounding medium fractured zones situation |
| WO2022126695A1 (en) * | 2020-12-15 | 2022-06-23 | 华中科技大学 | Online powder detection apparatus based on laser‑induced breakdown spectroscopy |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749012A (en) * | 2015-04-09 | 2015-07-01 | 常州大学 | High-efficiency bituminous coal sample block making device |
| CN105158043A (en) * | 2015-10-22 | 2015-12-16 | 中国矿业大学(北京) | Prefabricated stratification briquette coal and production method thereof |
| CN105510176B (en) * | 2016-01-08 | 2018-03-20 | 河南理工大学 | A kind of coal sample gas negative pressure desorption experiment system |
| CN105510176A (en) * | 2016-01-08 | 2016-04-20 | 河南理工大学 | Coal sample gas negative pressure desorption experimental system |
| CN105510103A (en) * | 2016-02-01 | 2016-04-20 | 安徽理工大学 | Coal briquette sample preparation mold |
| CN105738178A (en) * | 2016-04-07 | 2016-07-06 | 安徽理工大学 | Briquette coal sample preparation device |
| CN105823667A (en) * | 2016-05-20 | 2016-08-03 | 河南理工大学 | Soft coal rock sample preparation system and method |
| CN105823667B (en) * | 2016-05-20 | 2018-07-27 | 河南理工大学 | A kind of cherry coal rock sample-preparing system and method |
| CN106353159A (en) * | 2016-09-08 | 2017-01-25 | 华北科技学院 | Apparatus and method for manufacturing coal sample by hybrid hot-pressing |
| CN106525525A (en) * | 2016-10-21 | 2017-03-22 | 中联煤层气国家工程研究中心有限责任公司 | Method for preparing artificial coal core standard sample |
| CN106525525B (en) * | 2016-10-21 | 2020-02-04 | 中联煤层气国家工程研究中心有限责任公司 | Manufacturing method of artificial coal core standard test piece |
| CN106404497A (en) * | 2016-12-12 | 2017-02-15 | 安徽理工大学 | Three-in-one briquette pressing mould |
| CN107389408A (en) * | 2017-08-17 | 2017-11-24 | 中国建筑东北设计研究院有限公司 | A kind of triaxial test sample preparation device and method for making sample |
| CN107907465A (en) * | 2017-11-20 | 2018-04-13 | 华北科技学院 | For detecting the experimental provision and method of drilling surrounding medium fractured zones situation |
| WO2022126695A1 (en) * | 2020-12-15 | 2022-06-23 | 华中科技大学 | Online powder detection apparatus based on laser‑induced breakdown spectroscopy |
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Application publication date: 20130213 |