CN112629971A - Coal ash adhesive and ash cone manufacturing method - Google Patents
Coal ash adhesive and ash cone manufacturing method Download PDFInfo
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- CN112629971A CN112629971A CN202011496332.5A CN202011496332A CN112629971A CN 112629971 A CN112629971 A CN 112629971A CN 202011496332 A CN202011496332 A CN 202011496332A CN 112629971 A CN112629971 A CN 112629971A
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- Prior art keywords
- coal ash
- ash
- cone
- manufacturing
- coal
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- 239000010883 coal ash Substances 0.000 title claims abstract description 79
- 239000002956 ash Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 239000000853 adhesive Substances 0.000 title claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 229920002678 cellulose Polymers 0.000 claims abstract description 15
- 239000001913 cellulose Substances 0.000 claims abstract description 15
- 229920002472 Starch Polymers 0.000 claims abstract description 13
- 239000008107 starch Substances 0.000 claims abstract description 13
- 235000019698 starch Nutrition 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000007873 sieving Methods 0.000 claims abstract description 5
- 238000009736 wetting Methods 0.000 claims abstract description 4
- 229920001353 Dextrin Polymers 0.000 claims description 34
- 239000004375 Dextrin Substances 0.000 claims description 34
- 235000019425 dextrin Nutrition 0.000 claims description 34
- 239000011230 binding agent Substances 0.000 claims description 23
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 9
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 9
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical group OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 9
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The application discloses a coal ash adhesive and a method for manufacturing an ash cone, wherein the coal ash adhesive comprises inorganic cellulose and gelatinized starch which are mixed together, inorganic cellulose is added, the toughness of the manufactured ash cone is better, a formed sharp corner is easy to manufacture, and the sharp corner is not easy to break, so that the difficulty and the cost for manufacturing the ash cone can be reduced on the basis of not changing the melting characteristic of coal ash, and the reliability for manufacturing the ash cone is improved. The ash cone manufacturing method comprises the steps of sieving the coal ash adhesive; uniformly mixing the sieved coal ash adhesive with coal ash; wetting the uniformly mixed coal ash to prepare the gray cone. The method for manufacturing the ash cone can reduce the difficulty and cost for manufacturing the ash cone and improve the reliability for manufacturing the ash cone on the basis of not changing the melting characteristic of the coal ash.
Description
Technical Field
The invention belongs to the technical field of coal quality analysis, and particularly relates to a coal ash adhesive and a method for manufacturing an ash cone.
Background
The existing coal ash fusibility testing technology is to observe the fusion characteristic temperature of an ash cone in a certain gas atmosphere at a certain temperature rise speed, and before testing, the coal ash is made into a triangular cone or a cylindrical ash cone to be used as a test sample.
Traditional ash cone preparation adopts artificial mode, press ash cone mould on the one hand, hold the scraper on the other hand, utilize the scraper to adsorb the ash cone mould of carrying of plastic form coal ash, clap tightly layer upon layer again, at this in-process will add water in the coal ash of transferring constantly, in order to prevent plastic form coal ash dehydration powderization, high in labor strength, and need be very careful when carrying out the drawing of patterns to the ash cone of clapping the pressure, in order to prevent the problem that the broken tip appears or the edge collapses, make qualified ash cone needs the accumulation of experience, and when adopting automatic mode preparation ash cone, because the characteristic of the ash cone of triangle conical form, also easy broken tip and edge collapse, therefore the probability of making qualified ash cone is still very low.
Disclosure of Invention
In order to solve the problems, the invention provides a coal ash adhesive and a method for manufacturing an ash cone, which can reduce the difficulty and cost for manufacturing the ash cone and improve the reliability for manufacturing the ash cone on the basis of not changing the melting characteristic of coal ash.
The invention provides a coal ash adhesive which comprises inorganic cellulose and gelatinized starch which are mixed together.
Preferably, in the coal ash binder, the inorganic cellulose is hydroxypropylmethyl cellulose.
Preferably, in the coal ash binder, the gelatinized starch includes yellow dextrin and/or white dextrin.
Preferably, in the coal ash binder, the weight of the yellow dextrin is 0.5% to 3% of the weight of the coal ash for binding.
Preferably, in the coal ash binder, the weight of the white dextrin is 0.5% to 2% of the weight of the coal ash for binding.
Preferably, in the coal ash binder, the weight of the hydroxypropyl methylcellulose is 1% to 3% of the weight of the coal ash used for binding.
The invention provides a method for manufacturing a gray cone, which comprises the steps of sieving any coal ash adhesive;
uniformly mixing the sieved coal ash adhesive with coal ash;
wetting the uniformly mixed coal ash to prepare the gray cone.
Preferably, in the method for manufacturing a gray cone, the coal ash binder is sieved through a 180-mesh sieve.
Preferably, in the above method of manufacturing a gray cone, the coal ash after the kneading is wetted with warm water.
Preferably, in the method for manufacturing a gray cone, the coal ash after being mixed is wetted by the wetted white dextrin.
As can be seen from the above description, the coal ash adhesive provided by the present invention, including the inorganic cellulose and the gelatinized starch mixed together, is better in toughness of the manufactured ash cone due to the addition of the inorganic cellulose, and is easy to manufacture a formed sharp corner, and the sharp corner is not easy to break, so that the difficulty and cost for manufacturing the ash cone can be reduced, and the reliability for manufacturing the ash cone can be improved without changing the melting characteristics of the coal ash. The ash cone manufacturing method provided by the invention comprises the following steps of sieving the coal ash adhesive; then uniformly mixing the sieved coal ash adhesive with coal ash; and the ash cone is manufactured after the uniformly mixed coal ash is wetted, so that the difficulty and the cost for manufacturing the ash cone can be reduced, and the reliability for manufacturing the ash cone is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of a method for manufacturing a gray cone according to the present invention.
Detailed Description
The core of the invention is to provide a coal ash adhesive and a method for manufacturing an ash cone, which can reduce the difficulty and cost for manufacturing the ash cone and improve the reliability for manufacturing the ash cone on the basis of not changing the melting characteristic of coal ash.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the coal ash adhesive provided by the invention comprises inorganic cellulose and gelatinized starch which are mixed together. It should be noted that, the inorganic cellulose has excellent properties of high strength, high polymerization degree, high crystallinity and high transparency, and after the inorganic cellulose is added, the toughness of the manufactured ash cone is better, the formed sharp corner is easy to manufacture, and the sharp corner is not easy to break.
As can be seen from the above description, in the embodiment of the coal ash binder provided by the present invention, since the coal ash binder includes the inorganic cellulose and the gelatinized starch mixed together, it can be seen that the addition of the inorganic cellulose improves the toughness of the manufactured ash cone, facilitates the manufacture of the formed sharp corner, and the sharp corner is not easily broken, so that the difficulty and cost of manufacturing the ash cone can be reduced, and the reliability of manufacturing the ash cone can be improved without changing the melting characteristics of the coal ash.
In one embodiment of the coal ash binder, the inorganic cellulose may preferably be hydroxypropyl methylcellulose, which is generally characterized by higher viscosity, thickening ability, salt discharge property, pH stability, water retention property, dimensional stability, excellent film forming property, and wide enzyme resistance, dispersibility, and cohesiveness, so that the coal ash can be bonded with the hydroxypropyl methylcellulose, which is not limited herein, but may be other types of inorganic cellulose according to actual needs. Furthermore, the weight of the hydroxypropyl methylcellulose can be 1% to 3% of the weight of the coal ash for bonding, the reason for setting the proportion is that if the amount is too small, a good bonding effect cannot be achieved, if the amount is too large, waste is caused, and the hydroxypropyl methylcellulose is too fluffy, and is easy to collapse, and both the aspects can be considered only within the range, and the proportion can be adjusted adaptively according to actual conditions, and the limitation is not limited herein.
In another embodiment of the coal ash binder, the gelatinized starch may preferably include yellow dextrin and/or white dextrin, that is, the gelatinized starch may include only yellow dextrin, only white dextrin, and both yellow dextrin and white dextrin, wherein dextrin is an intermediate product of starch decomposition, and has the same chemical formula as starch, and is (C)6H10O5)nHowever, the degree of polymerization is between that of soluble starch and maltose, and the dextrin mainly has a sticky effect, and whether a single kind of dextrin is selected or two kinds of dextrins are included can be determined according to actual needs.
In another embodiment of the coal ash binder, the weight of the yellow dextrin may be preferably 0.5% to 3% of the weight of the coal ash used for binding, and it should be noted that if the amount of the yellow dextrin is too small, the binding effect is not good enough, and if the amount of the yellow dextrin is too large, the yellow dextrin may be adhered to the mold and not good enough, so that the yellow dextrin may be preferably in such a range that both the yellow dextrin and the mold can be simultaneously bonded to each other.
It is understood by those skilled in the art that the weight of the white dextrin may be 0.5% to 2% of the weight of the coal ash for binding, and it should be noted that if the amount of the white dextrin is too small, the binding effect is not sufficient, and if the amount of the white dextrin is too large, the white dextrin does not have a binding effect because the solubility in water is relatively low, and therefore, the white dextrin is preferably in such a range, both of these two aspects can be considered, and other proportions may be selected in other cases, and the present invention is not limited thereto.
Fig. 1 shows an embodiment of a method for manufacturing a gray cone, where fig. 1 is a schematic diagram of an embodiment of a method for manufacturing a gray cone, and the method may include the following steps:
s1: sieving any one of the coal ash binders;
specifically, the coal ash binder can be sieved by a 180-mesh sieve, so that the obtained powder meets the requirements and is easier to mix uniformly.
S2: uniformly mixing the sieved coal ash adhesive with coal ash;
that is to say, after the two are mixed uniformly, the contact area maximization of the coal ash adhesive and the coal ash can be ensured, so that the whole body is formed in the ash cone manufacturing process more easily, and the problem is less prone to occurring.
S3: wetting the uniformly mixed coal ash to prepare the gray cone.
In this step, the coal ash after being mixed may be wetted with warm water, and may be made into a plastic form for use, so that a more stable gray cone may be finally obtained.
In another specific embodiment of the method for manufacturing the gray cone, the uniformly mixed coal ash can be wetted by the wetted white dextrin, that is, in this case, the hydroxypropyl methylcellulose and the yellow dextrin can be firstly refined and sieved by a 180-mesh sieve, and then are uniformly mixed with the coal ash, and are wetted by the white dextrin to be prepared into a plastic shape for use, so that the more stable gray cone can be obtained.
In the embodiment of the method for manufacturing the ash cone, the ash binder is sieved, then the sieved ash binder is mixed with the ash uniformly, and the ash cone is manufactured after the mixed ash is wetted, so that the difficulty and the cost for manufacturing the ash cone can be reduced, and the reliability for manufacturing the ash cone is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A coal ash binder is characterized by comprising inorganic cellulose and gelatinized starch which are mixed together.
2. The coal ash binder of claim 1 wherein the inorganic cellulose is hydroxypropyl methylcellulose.
3. The coal ash binder of claim 1 wherein the gelatinized starch comprises yellow dextrin and/or white dextrin.
4. The coal ash binder of claim 3 wherein the yellow dextrin is present in an amount of 0.5 to 3% by weight of the coal ash used for binding.
5. The coal ash binder of claim 3 wherein the weight of the white dextrin is 0.5% to 2% of the weight of the coal ash used for binding.
6. The coal ash binder of claim 2 wherein the hydroxypropyl methylcellulose is present in an amount of 1 to 3% by weight of the coal ash used for binding.
7. A method of making an ash cone, characterized by sieving a coal ash binder according to any one of claims 1 to 6;
uniformly mixing the sieved coal ash adhesive with coal ash;
wetting the uniformly mixed coal ash to prepare the gray cone.
8. The method of claim 7, wherein the coal ash binder is sieved through a 180 mesh sieve.
9. The method for manufacturing the gray cone of claim 7, wherein the uniformly mixed coal ash is wetted by warm water.
10. The method for manufacturing the gray cone of claim 7, wherein the uniformly mixed coal ash is wetted by the wetted white dextrin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011496332.5A CN112629971A (en) | 2020-12-17 | 2020-12-17 | Coal ash adhesive and ash cone manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011496332.5A CN112629971A (en) | 2020-12-17 | 2020-12-17 | Coal ash adhesive and ash cone manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN112629971A true CN112629971A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011496332.5A Pending CN112629971A (en) | 2020-12-17 | 2020-12-17 | Coal ash adhesive and ash cone manufacturing method |
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| CN (1) | CN112629971A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106398791A (en) * | 2016-09-30 | 2017-02-15 | 西安科技大学 | Preparation and application methods of high-strength and environment-friendly coal briquette adhesive |
| JP2019085311A (en) * | 2017-11-08 | 2019-06-06 | 三菱マテリアル株式会社 | Coal ash molding and production method thereof |
| CN110003966A (en) * | 2019-04-28 | 2019-07-12 | 河北东慈环保科技有限公司 | A kind of multi-functional powdered briquette adhesive, preparation method and the moulded coal comprising the adhesive |
| JP2020037226A (en) * | 2018-09-05 | 2020-03-12 | 太平洋セメント株式会社 | Method for producing coal ash granule |
-
2020
- 2020-12-17 CN CN202011496332.5A patent/CN112629971A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106398791A (en) * | 2016-09-30 | 2017-02-15 | 西安科技大学 | Preparation and application methods of high-strength and environment-friendly coal briquette adhesive |
| JP2019085311A (en) * | 2017-11-08 | 2019-06-06 | 三菱マテリアル株式会社 | Coal ash molding and production method thereof |
| JP2020037226A (en) * | 2018-09-05 | 2020-03-12 | 太平洋セメント株式会社 | Method for producing coal ash granule |
| CN110003966A (en) * | 2019-04-28 | 2019-07-12 | 河北东慈环保科技有限公司 | A kind of multi-functional powdered briquette adhesive, preparation method and the moulded coal comprising the adhesive |
Non-Patent Citations (1)
| Title |
|---|
| 邵雪: "探究糊精对煤粉灰熔融性的影响", 《化工管理》 * |
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Application publication date: 20210409 |