CN111775281A - Drying-free short-process preparation method of grey tile based on dry process - Google Patents
Drying-free short-process preparation method of grey tile based on dry process Download PDFInfo
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- CN111775281A CN111775281A CN202010716080.6A CN202010716080A CN111775281A CN 111775281 A CN111775281 A CN 111775281A CN 202010716080 A CN202010716080 A CN 202010716080A CN 111775281 A CN111775281 A CN 111775281A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000001035 drying Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 21
- 238000005469 granulation Methods 0.000 claims abstract description 16
- 230000003179 granulation Effects 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000008187 granular material Substances 0.000 claims abstract description 11
- 239000011265 semifinished product Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000005245 sintering Methods 0.000 claims abstract description 7
- 238000009837 dry grinding Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000011449 brick Substances 0.000 claims abstract description 3
- 239000000047 product Substances 0.000 claims description 12
- 238000010304 firing Methods 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 33
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- 239000011229 interlayer Substances 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- 238000001694 spray drying Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019646 color tone Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 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
- 239000003345 natural gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/22—Grog products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a drying-free short-flow preparation method of a grey tile based on a dry process. The method comprises the following steps: firstly, coarsely crushing raw materials to be less than 40 mm; then sending the mixture into a Raymond mill for dry grinding, and winnowing out particles with the particle size of less than 100 meshes to obtain powder; feeding the powder into a granulator for humidifying granulation, and controlling the moisture content to be 6-8% to obtain granules; then conveying the granules to an automatic brick press to be pressed into semi-finished products; and finally, sintering. The invention introduces the granulation function, the granulated powder has better fluidity and has good exhaust performance when being pressed by a press, so that the defects of interlayers, cracks and the like are not easy to appear, and the yield is improved. The invention abandons the traditional dry and wet process, shortens the process flow, is simple to operate and greatly reduces the production cost; meanwhile, the method can save resources and reduce the emission of atmospheric pollutants in the production process, thereby having the technical advantages of energy conservation, consumption reduction and environmental friendliness.
Description
Technical Field
The invention relates to the technical field of green tile preparation, in particular to a drying-free short-process preparation method of green tiles based on a dry process technology.
Background
The green tile is also called as ancient tile, has long production history, is mainly used in the field of ancient buildings and antique buildings, and is mainly prepared by crushing, kneading, extruding and roasting clay and shale. The shape of the utility model is arched, flat and semicircular, which gives people the feeling of primitive simplicity, elegance, stability and tranquility. The green tile has the effects of heat preservation, heat insulation, rain prevention and the like, most of the color tones of the green tile are the result of the action of iron oxide in different atmospheres of the kiln, the oxidation atmosphere forms light red-purple, and the reduction atmosphere is gray-cyan.
The production of the traditional green tile mainly comprises two methods, namely a wet process and a dry process according to different processing modes of raw materials. The wet process has the advantages of more uniform grinding and mixing of materials, higher energy consumption, high production cost, difficult realization of energy conservation and consumption reduction and high enterprise survival pressure. The dry-method powder-making drying-free process is mainly a raw material processing link, so that a vulcanization drying procedure after granulation is omitted, and the energy consumption cost in production is greatly reduced.
However, the conventional dry process still has certain defects, and the process flow is as follows:
grinding → sieving → humidifying → aging → pressing → burning → sorting → packaging.
The existing dry powder process has the defects of interlayer, crack and the like of products in the pressing process of a press because the process is too rough and granulation is not carried out, and the yield is low.
Disclosure of Invention
The invention aims to overcome the technical defects of the prior art, and provides a drying-free short-flow preparation method of a grey tile based on a dry process, so as to solve the technical problem that the product is easy to have the defects of interlayer, cracks and the like in the pressing process of a press in the conventional dry process.
Another technical problem to be solved by the present invention is how to shorten the process flow and simplify the operation amount.
The invention aims to solve the technical problem of reducing pollutant emission.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a drying-free short-flow preparation method of a green tile based on a dry process technology comprises the following steps:
1) coarsely crushing the raw materials to be less than 40 mm;
2) sending the mixture into a Raymond mill for dry grinding, and then air-selecting particles with the particle size of less than 100 meshes to obtain powder;
3) feeding the powder obtained in the step 2) into a granulator for humidifying granulation, and controlling the moisture content to be 6-8% to obtain granules;
4) conveying the granular materials obtained in the step 3) to an automatic brick press to be pressed into semi-finished products;
5) and (4) conveying the semi-finished product obtained in the step 4) to a kiln for sintering.
In the step 2), the raw materials are subjected to spray wetting granulation after Raymond, and the traditional ceramic spray drying and granulation process is not carried out, so that the energy consumption and the discharge of atmospheric pollutants are reduced. The granules obtained in the step (3) are directly used for pressing a semi-finished product by a press without a fluidized bed drying process, so that the energy consumption is reduced.
Preferably, the feedstock in step 1) comprises clay or shale.
Preferably, the powder material in the step 2) is sieved by a 100-mesh sieve, and the sieve residue is less than 6%.
Preferably, the moisture content in step 3) is 7%.
Preferably, the firing temperature in the step 5) is 1120-1160 ℃, and the firing time is 45-70 minutes.
Preferably, the method further comprises the following step 6): sorting and packaging the products fired in the step 5) to obtain finished products.
In the above technical scheme: by adopting the winnowing process, the powder meeting the requirement of the particle size in the grinding process can be immediately selected, and the over-grinding phenomenon in the grinding process is avoided as much as possible, so that the energy consumption required by grinding is greatly reduced. Meanwhile, the dry humidifying granulation method is adopted, so that the spray drying process in the wet process can be omitted, the energy consumption of spray drying is avoided, and the emission of atmospheric pollutants is reduced. In addition, a granulation function is introduced, the granulated powder has good fluidity, and the air exhaust performance is good when the powder is pressed by a press, so that the defects of interlayers, cracks and the like are not easy to occur, and the yield is improved.
The invention provides a drying-free short-flow preparation method of a grey tile based on a dry process. The method abandons the traditional dry and wet process, shortens the process flow, is simple to operate, and greatly reduces the production cost; meanwhile, the method can save resources and reduce the emission of atmospheric pollutants in the production process, thereby having the technical advantages of energy conservation, consumption reduction and environmental friendliness.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The overall technical scheme of the invention is as follows:
(1) ingredients
Crushing the raw materials for producing the green tile to be less than 40 mm.
(2) Grinding
Mixing the crushed green tile (composite ancient tile) raw materials, putting the mixture into a Raymond mill, carrying out dry grinding, then carrying out air separation on particles with the particle size of less than 100 meshes, and controlling the residual of 100 meshes to be less than 6% to obtain powder.
(3) Granulating
And (3) putting the powder obtained in the step (2) into a granulator for humidifying granulation, and controlling the moisture content to be about 7% to obtain granules.
(4) Shaping of
And (4) conveying the granular material obtained in the step (3) to a press process, and pressing to obtain a qualified semi-finished product through the press.
(5) Firing into
And (4) feeding the semi-finished product obtained in the step (4) into a sintering kiln along with a conveying line, and then sintering at high temperature.
(6) Sorting
And (5) cooling the product fired in the step (5), and then sorting and packaging to obtain a finished product.
Preferably, the dry grinding in step (2) is carried out by adopting an air separation process to screen out particles with the particle size of less than 100 meshes. The powder meeting the requirement of the particle size in the grinding process by adopting the winnowing process can be immediately selected, and the over-grinding phenomenon in the grinding process is avoided as much as possible, so that the energy consumption required by grinding is greatly reduced.
Preferably, the dry-method humidifying granulation in the step (3) can remove the spray drying process in the wet-method process, does not consume energy in the spray drying process, and can avoid the emission of atmospheric pollutants in the production process.
Preferably, the dry humidifying granulation in the step (3) has 6-8% of granulation moisture, is suitable for a press, has more granulation functions than the existing dry process, has better fluidity for the granulated powder, has good exhaust performance during press pressing, and can improve the yield in the production process.
Preferably, the firing temperature in the step (5) is 1120-1160 ℃, and the firing period is 45-70 minutes.
The comparison between the present invention and the prior art in terms of cost and yield is shown in table 1.
TABLE 1 comparison of cost and yield between different processes
| Content providing method and apparatus | Short-flow drying-free drying process | Existing dry process | Conventional wet process |
| Pulverized fuel gas m3 | 0 | 0 | 40 |
| Drying Process m3 | 0 | 0 | 7 |
| Total up to | 0 | 0 | 47 |
| Conversion money (Yuan) | 0 | 0 | 126.9 |
| Content providing method and apparatus | Dry powder making process | Dry powder making process | Conventional wet process |
| Additive (Yuan) | 0 | 0 | 8-12 |
| Electric charge (Yuan) | 30-35 | 30-35 | 40-45 |
| Total (yuan) | 30-35 | 30-35 | 174.9-183.9 |
| The rate of finished products% | 99.3 | 80-85 | 99.5 |
Note: real-time price of natural gas is 2.7 yuan/m3And (4) calculating.
Example 1
The new production line of a certain company in Hunan adopts the process:
(1) ingredients
Crushing clay and shale to below 40 mm.
(2) Grinding
Adding a small amount of fine iron powder into the crushed clay and shale according to a proportion, mixing, conveying the mixture into a Raymond mill, carrying out dry grinding, then carrying out air separation on particles with the particle size of less than 100 meshes, and controlling the residual of a 100-mesh sieve to be less than 6% to obtain powder.
(3) Granulating
And (3) putting the powder obtained in the step (2) into a granulator for humidifying granulation, and controlling the moisture content to be about 7% to obtain granules.
(4) Shaping of
And (4) conveying the granular material obtained in the step (3) to a press process, and pressing to obtain a qualified semi-finished product through the press.
(5) Firing into
And (4) feeding the semi-finished product obtained in the step (4) into a sintering kiln along with a conveying line, and then sintering at high temperature.
(6) Sorting
And (5) cooling the product fired in the step (5), and then sorting and packaging to obtain a finished product.
Table 1 example 1 finished product index
| Item | Detection method | Example 1 | National standard class I |
| Water absorption (%) | GB/T36584 | 5.5 | ≤6 |
| Flexural Strength (mpa) | GB/T36584 | 11.8 | Not less than 10 |
| Freezing resistance | GB/T36584 | 18 times of | Not less than 15 times |
| Resistance to rapid cooling and heating | GB/T36584 | 15 times of | Not less than 10 times |
| Resistance to permeation | GB/T36584 | No water drop in 10 hours | 3 little no water drop |
| Salt resistance | GB/T36584 | 0.3 | ≤0.4 |
The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A drying-free short-flow preparation method of a green tile based on a dry process technology is characterized by comprising the following steps:
1) coarsely crushing the raw materials to be less than 40 mm;
2) sending the mixture into a Raymond mill for dry grinding, and then air-selecting particles with the particle size of less than 100 meshes to obtain powder;
3) feeding the powder obtained in the step 2) into a granulator for humidifying granulation, and controlling the moisture content to be 6-8% to obtain granules;
4) conveying the granular materials obtained in the step 3) to an automatic brick press to be pressed into semi-finished products;
5) and (4) conveying the semi-finished product obtained in the step 4) to a kiln for sintering.
2. The method for preparing the green tile drying-free short flow based on the dry process according to claim 1, wherein the raw material in the step 1) comprises clay or shale.
3. The dry process-based non-drying short-process preparation method of the cyan tile according to claim 1, wherein the powder in the step 2) is sieved by a 100-mesh sieve, and the sieve residue is less than 6%.
4. The dry process-based non-baking short-process preparation method of cyan tile according to claim 1, wherein the moisture content in step 3) is 7%.
5. The dry process-based baking-free short-flow preparation method of the grey tile according to claim 1, characterized in that the firing temperature in the step 5) is 1120-1160 ℃, and the firing time is 45-70 minutes.
6. The dry process-based green tile drying-free short-process preparation method according to claim 1, characterized by further comprising the following step 6): sorting and packaging the products fired in the step 5) to obtain finished products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010716080.6A CN111775281A (en) | 2020-07-23 | 2020-07-23 | Drying-free short-process preparation method of grey tile based on dry process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010716080.6A CN111775281A (en) | 2020-07-23 | 2020-07-23 | Drying-free short-process preparation method of grey tile based on dry process |
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| Publication Number | Publication Date |
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| CN111775281A true CN111775281A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010716080.6A Pending CN111775281A (en) | 2020-07-23 | 2020-07-23 | Drying-free short-process preparation method of grey tile based on dry process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619557A (en) * | 2020-12-31 | 2021-04-09 | 湖南旭日陶瓷有限公司 | Large-particle dry preparation process |
| CN114230309A (en) * | 2021-12-22 | 2022-03-25 | 江苏乐冠新型建材有限公司 | Formula and preparation method of low-water-absorption green tile building material |
| CN114230311A (en) * | 2021-12-27 | 2022-03-25 | 江苏乐冠新型建材有限公司 | Formula and preparation method for preparing green tile building material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056959A (en) * | 2011-10-21 | 2013-04-24 | 咸阳陶瓷研究设计院 | Ceramics raw material preparation dry method and short process craft |
| US20130213677A1 (en) * | 2012-02-16 | 2013-08-22 | Aruna Zhamu | Surface-mediated cell-driven power tools and methods of operating same |
| CN103724003A (en) * | 2013-12-02 | 2014-04-16 | 洛阳麦德陶粒有限公司 | Method for producing ceramsite sand |
| ES2516540A1 (en) * | 2013-04-30 | 2014-10-30 | Asociación Empresarial De Investigación Centro Tecnológico Del Mármol Y La Piedra | Procedure of application of insulating and anti-slip coatings to stone pavements (Machine-translation by Google Translate, not legally binding) |
| CN105503204A (en) * | 2015-12-16 | 2016-04-20 | 佛山市博晖机电有限公司 | Ceramic powder formula and manufacturing technology thereof |
| EP2886007B1 (en) * | 2013-12-19 | 2017-12-06 | Erich Nagl | Protection device for cables and hoses |
| CN110282894A (en) * | 2019-06-28 | 2019-09-27 | 淮南东辰集团有限责任公司 | A kind of coal gangue haydite and preparation method thereof |
-
2020
- 2020-07-23 CN CN202010716080.6A patent/CN111775281A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056959A (en) * | 2011-10-21 | 2013-04-24 | 咸阳陶瓷研究设计院 | Ceramics raw material preparation dry method and short process craft |
| US20130213677A1 (en) * | 2012-02-16 | 2013-08-22 | Aruna Zhamu | Surface-mediated cell-driven power tools and methods of operating same |
| ES2516540A1 (en) * | 2013-04-30 | 2014-10-30 | Asociación Empresarial De Investigación Centro Tecnológico Del Mármol Y La Piedra | Procedure of application of insulating and anti-slip coatings to stone pavements (Machine-translation by Google Translate, not legally binding) |
| CN103724003A (en) * | 2013-12-02 | 2014-04-16 | 洛阳麦德陶粒有限公司 | Method for producing ceramsite sand |
| EP2886007B1 (en) * | 2013-12-19 | 2017-12-06 | Erich Nagl | Protection device for cables and hoses |
| CN105503204A (en) * | 2015-12-16 | 2016-04-20 | 佛山市博晖机电有限公司 | Ceramic powder formula and manufacturing technology thereof |
| CN110282894A (en) * | 2019-06-28 | 2019-09-27 | 淮南东辰集团有限责任公司 | A kind of coal gangue haydite and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陶晓文 成智文: ""干法短流程工艺制备陶瓷砖粉料技术的研究开发"", 《陶瓷》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619557A (en) * | 2020-12-31 | 2021-04-09 | 湖南旭日陶瓷有限公司 | Large-particle dry preparation process |
| CN114230309A (en) * | 2021-12-22 | 2022-03-25 | 江苏乐冠新型建材有限公司 | Formula and preparation method of low-water-absorption green tile building material |
| CN114230311A (en) * | 2021-12-27 | 2022-03-25 | 江苏乐冠新型建材有限公司 | Formula and preparation method for preparing green tile building material |
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Application publication date: 20201016 |