CN111435133A - Easy fever nature detection and evaluation system - Google Patents
Easy fever nature detection and evaluation system Download PDFInfo
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- CN111435133A CN111435133A CN201910033538.5A CN201910033538A CN111435133A CN 111435133 A CN111435133 A CN 111435133A CN 201910033538 A CN201910033538 A CN 201910033538A CN 111435133 A CN111435133 A CN 111435133A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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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
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Abstract
The invention discloses an easy-burning detection and evaluation system, which comprises a detection sample, a high-temperature furnace and a K1450 model, wherein the detection sample is prepared from raw materials and coal powder according to the following proportion: 10:1, 10:2, 10: 3. 10:4, 10:5, 10:6, 10:7, 10:8 and 10:9 are made into detection samples, the samples are placed in a high-temperature furnace for calcination, the temperature in the high-temperature furnace is controlled at 1000 ℃, the detection samples are placed in the high-temperature furnace, different proportion ratios of cement raw materials and coal powder are calcined at the same temperature, and the K1450 model calculates free calcium oxide in the cement raw materials after high-temperature calcination. The invention completely simulates the calcination process from raw materials to clinker in actual production, tests by controlling the adding proportion of the pulverized coal and the raw materials, and has more accurate evaluation on the easy burning property of the raw materials.
Description
Technical Field
The invention relates to the technical field of detection of easy combustibility of cement raw materials, in particular to an easy combustibility detection and evaluation system.
Background
The conventional method for evaluating the easy-to-burn property of the raw material is to evaluate the content of free calcium oxide in the clinker after the raw material is calcined. The method has single consideration factor, neglects the influence of other components of the raw material on the easy-to-burn property, and ensures that the method for controlling the easy-to-burn property of the raw material in actual production is single and is not beneficial to production.
Disclosure of Invention
The invention aims to provide an easy-burning performance detection and evaluation system which has the advantage of more comprehensive detection and evaluation and solves the problem of single detection and evaluation direction.
In order to achieve the purpose, the invention provides the following technical scheme: the system for detecting and evaluating the burnability of the coal mine comprises a detection sample, a high-temperature furnace and a K1450 model, and is characterized in that: the detection sample is prepared from raw materials and coal powder, and the preparation process comprises the following steps:
(1) grinding the raw materials and the coal powder into particles with different sizes by a grinding device;
(2) screening the raw materials and the coal powder through a screening device, and screening the raw materials and the coal powder through a screen;
(3) adding coal powder into the raw materials according to the following proportion: 10:1, 10:2, 10: 3. 10:4, 10:5, 10:6, 10:7, 10:8 and 10: 9.
Preferably, the sample is placed in a high temperature furnace for calcination.
Preferably, the temperature in the high-temperature furnace is controlled at 1000 ℃, the detection sample is placed in the high-temperature furnace, and the cement raw meal and the pulverized coal are calcined at the same temperature according to different proportioning ratios.
Preferably, the temperature in the high-temperature furnace is increased to 1450 ℃, the detection sample is calcined in the high-temperature furnace, and cement raw meal and coal dust are fully calcined.
Preferably, the K1450 model calculates free calcium oxide in the cement raw meal after high-temperature calcination;
[C]＝fCaO
preferably, the K1450 is more than 70, the raw material is easy to burn, and the energy consumption is low. The linear relationship between the raw material components and the raw material fineness and K1450 is as follows:
(1) when the fineness of 0.2mm is reduced by 0.1, K1450 is improved by 1-2, and f-CaO is reduced by 0.02-0.06;
(2) when the fineness of 0.08mm is reduced by 1, the K1450 is improved by 2-3, and the f-CaO is reduced by 0.04-0.08;
(3) when KH is reduced by 0.01, f-CaO is reduced by 0.1-0.2; k1450 increased by about 1;
(4) when N is reduced by 0.05, f-CaO is reduced by 0.1-0.2, and K1450 is increased by 2-3;
the above relation can be used as an important basis for adjusting the parameter for controlling the burnability of the raw material in the actual production.
Compared with the prior art, the invention has the beneficial effects that: by grinding the raw material and the coal powder into different particle sizes, the ratio of the raw material to the coal powder is as follows: 10:1, 10:2, 10: 3. The method comprises the steps of mixing 10:4, 10:5, 10:6, 10:7, 10:8 and 10:9 in proportion, manufacturing a plurality of groups of detection samples, simultaneously calcining the detection samples in a high-temperature furnace, controlling the same calcining temperature and time, calculating free calcium oxide in the detection samples through a K1450 model, verifying the influence of the quantity and particle size of coal powder on the burnability of raw materials through control variables and comparison tests, and completely simulating the calcining process from raw materials to clinker in actual production, wherein the detection evaluation direction is wider, and the evaluation on the burnability of the raw materials is more accurate. In addition, the patent has important guiding function for the stability of the raw material easy-burning property and the control of relevant factors influencing the raw material easy-burning property.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provided by the invention comprises the following steps: the system for detecting and evaluating the burnability of the coal mine comprises a detection sample, a high-temperature furnace and a K1450 model, and is characterized in that: the detection sample is prepared from raw materials and coal powder, and the preparation process comprises the following steps:
(1) grinding the raw materials and the coal powder into particles with different sizes by a grinding device;
(2) screening the raw materials and the coal powder through a screening device, and screening the raw materials and the coal powder through a screen;
(3) adding coal powder into the raw materials according to the following proportion: 10:1, 10:2, 10: 3. 10:4, 10:5, 10:6, 10:7, 10:8 and 10: 9.
The sample was placed in a high temperature furnace for calcination.
The temperature in the high-temperature furnace is controlled at 1000 ℃, the detection sample is placed in the high-temperature furnace, and different proportions of cement raw materials and coal powder are calcined at the same temperature.
The temperature in the high-temperature furnace is increased to 1450 ℃, the detection sample is calcined in the high-temperature furnace, and the cement raw meal and the coal dust are fully calcined.
Calculating free calcium oxide in the cement raw material after high-temperature calcination by using a K1450 model;
[C]＝fCaO
k1450 is more than 70, raw materials are easy to burn, and energy consumption is low. The linear relationship between the raw material components and the raw material fineness and K1450 is as follows:
(1) when the fineness of 0.2mm is reduced by 0.1, K1450 is improved by 1-2, and f-CaO is reduced by 0.02-0.06;
(2) when the fineness of 0.08mm is reduced by 1, the K1450 is improved by 2-3, and the f-CaO is reduced by 0.04-0.08;
(3) when KH is reduced by 0.01, f-CaO is reduced by 0.1-0.2; k1450 increased by about 1;
(4) when N is reduced by 0.05, f-CaO is reduced by 0.1-0.2, and K1450 is increased by 2-3;
the above relation can be used as an important basis for adjusting the parameter for controlling the burnability of the raw material in the actual production. By grinding the raw material and the coal powder into different particle sizes, the ratio of the raw material to the coal powder is as follows: 10:1, 10:2, 10: 3. the method comprises the steps of mixing 10:4, 10:5, 10:6, 10:7, 10:8 and 10:9 in proportion, manufacturing a plurality of groups of detection samples, simultaneously calcining the detection samples in a high-temperature furnace, controlling the same calcining temperature and time, calculating free calcium oxide in the detection samples through a K1450 model, verifying the influence of the quantity and particle size of coal powder on the burnability of raw materials through control variables and comparison tests, and completely simulating the calcining process from raw materials to clinker in actual production, wherein the detection evaluation direction is wider, and the evaluation on the burnability of the raw materials is more accurate. In addition, the patent has important guiding function for the stability of the raw material easy-burning property and the control of relevant factors influencing the raw material easy-burning property.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. The system for detecting and evaluating the burnability of the coal mine comprises a detection sample, a high-temperature furnace and a K1450 model, and is characterized in that: the detection sample is prepared from raw materials and coal powder, and the preparation process comprises the following steps:
(1) grinding the raw materials and the coal powder into particles with different sizes by a grinding device;
(2) screening the raw materials and the coal powder through a screening device, and screening the raw materials and the coal powder through a screen;
(3) adding coal powder into the raw materials according to the following proportion: 10:1, 10:2, 10: 3. 10:4, 10:5, 10:6, 10:7, 10:8 and 10: 9.
2. The burnability detection and evaluation system according to claim 1, wherein: the sample was placed in a high temperature furnace for calcination.
3. The burnability detection and evaluation system according to claim 1, wherein: the temperature in the high-temperature furnace is controlled at 1000 ℃, the detection sample is placed in the high-temperature furnace, and different proportions of cement raw materials and coal powder are calcined at the same temperature.
4. The burnability detection and evaluation system according to claim 1, wherein: and the temperature in the high-temperature furnace is increased to 1450 ℃, the detection sample is calcined in the high-temperature furnace, and cement raw materials and coal powder are fully calcined.
5. The burnability detection and evaluation system according to claim 1, wherein: the K1450 model calculates free calcium oxide in the cement raw material after high-temperature calcination;
[C]＝fCaO。
6. the burnability detection and evaluation system according to claim 1, wherein: the K1450 is more than 70, the raw material is easy to burn, and the energy consumption is low. The linear relationship between the raw material components and the raw material fineness and K1450 is as follows:
(1) when the fineness of 0.2mm is reduced by 0.1, K1450 is improved by 1-2, and f-CaO is reduced by 0.02-0.06;
(2) when the fineness of 0.08mm is reduced by 1, the K1450 is improved by 2-3, and the f-CaO is reduced by 0.04-0.08;
(3) when KH is reduced by 0.01, f-CaO is reduced by 0.1-0.2; k1450 increased by about 1;
(4) when N is reduced by 0.05, f-CaO is reduced by 0.1-0.2, and K1450 is increased by 2-3;
the above relation can be used as an important basis for adjusting the parameter for controlling the burnability of the raw material in the actual production.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033538.5A CN111435133A (en) | 2019-01-14 | 2019-01-14 | Easy fever nature detection and evaluation system |
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| CN201910033538.5A CN111435133A (en) | 2019-01-14 | 2019-01-14 | Easy fever nature detection and evaluation system |
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| CN111435133A true CN111435133A (en) | 2020-07-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402265A (en) * | 2014-10-24 | 2015-03-11 | 浙江金圆水泥有限公司 | Cement clinker calcined from carbide slag as raw material |
| CN105259335A (en) * | 2015-10-26 | 2016-01-20 | 中国建筑材料科学研究总院 | Cement clinker performance evaluating method and calcination process optimizing method |
| CN108328949A (en) * | 2018-01-22 | 2018-07-27 | 江西亚东水泥有限公司 | A kind of cement clinker production |
-
2019
- 2019-01-14 CN CN201910033538.5A patent/CN111435133A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402265A (en) * | 2014-10-24 | 2015-03-11 | 浙江金圆水泥有限公司 | Cement clinker calcined from carbide slag as raw material |
| CN105259335A (en) * | 2015-10-26 | 2016-01-20 | 中国建筑材料科学研究总院 | Cement clinker performance evaluating method and calcination process optimizing method |
| CN108328949A (en) * | 2018-01-22 | 2018-07-27 | 江西亚东水泥有限公司 | A kind of cement clinker production |
Non-Patent Citations (5)
| Title |
|---|
| 孙成林: "《全国建材院校教育研究论丛》", 31 May 1998, 武汉工业大学出版社 * |
| 罗永勤 等: "《无机非金属材料实验》", 30 June 2018 * |
| 贾爱明 等: "褐煤煅烧水泥熟料烧成过程研究", 《四川水泥》 * |
| 郭随华 等: "生料易烧性指数K1450的计算和影响因素研究与应用实践", 《水泥》 * |
| 韩立杨: "浅析水泥易烧性的研究对水泥生产节能降耗的意义", 《实验研究》 * |
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