CN113501515A - Innovative process for manufacturing anthracite into conductor material - Google Patents
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Abstract
The invention discloses an innovative process for preparing anthracite into a conductor material, which comprises the following specific steps: s1, respectively selecting high-quality anthracite, common anthracite or anthracite gangue as anthracite raw materials; s2, processing the anthracite into corresponding forms; s3, the anthracite processed into the corresponding forms is regularly placed into a calcining furnace layer by layer, and the anthracite is calcined by utilizing the spontaneous combustion function generated by the anthracite; s4, when the burning temperature of the anthracite in the calcining furnace reaches a certain temperature, transferring the anthracite into the calcining furnace for oxygen-isolated calcination; s5, carrying out oxygen-insulated roasting for a certain time in a roasting furnace, and naturally cooling to obtain the anthracite conductor material.
Description
Technical Field
The invention relates to the technical field of anthracite application and conductor material preparation, in particular to an innovative process for manufacturing anthracite into a conductor material.
Background
Coal is a black solid mineral with the main constituents carbon, hydrogen, oxygen and nitrogen. The coal is formed by the ancient plant bodies which are deteriorated by underground high temperature and high pressure under the condition of air impermeability or insufficient air, and can be divided into four types of peat, lignite, soft coal and anthracite according to different forming stages and different carbonization degrees. The anthracite has the characteristics of large calorific value, high thermal stability, good mechanical strength, large hardness, small brittleness, low volatilization, high fixed carbon content and the like, belongs to an allotrope of elemental carbon like graphite, is a carbon material taking carbon elements as main bodies, is changed into different carbonized materials only due to different conditions such as living geological conditions and the like, and has fuel property and compact and hard quality.
Currently, graphite is used in: the graphite has high chemical properties and plasticity because the graphite can resist high temperature and conduct electricity and heat, and is also relatively lubricated. Because of the scientific and technological development in the world, the dependence on graphite is higher and higher, and the problems of annual exploitation and natural graphite purity are solved, the research investment in the aspect of artificial graphite is larger and larger, petroleum products are mostly used as substitutes in the market, but due to the industrial development in the world, the use of petroleum causes the continuous reduction of petroleum resources, and along with the continuous innovation of petroleum refining technology, the yield of petroleum-derived products is continuously reduced, so the petroleum resources are continuously reduced, and the substitutes are not enough to supply and apply.
Anthracite is also mainly used as a fuel for heating a burning furnace, generating electricity or blowing and sintering iron ore in a blast furnace. However, anthracite is a homoisomer of elemental carbon like graphite, carbon elements are used as carbon materials of main bodies, the carbon materials are changed into different carbonized substances only due to different conditions such as living geological conditions, and scientific and technical documents published by scientific research institutions of Canada and France, namely natural graphitization of anthracite, experimental consideration discloses that anthracite can be used as a raw material laboratory to manufacture conductor materials, but in the prior art, the method for preparing the conductor materials by using the anthracite is calcined by using electric energy heating, so that the energy consumption is large, the cost is high, the operation temperature is more than 2800 and 3000 ℃, the energy consumption is high in the preparation process, the practicability is poor, no way is provided for preparing the conductor materials by using the anthracite and actual production and use, and the development of the anthracite is limited.
Disclosure of Invention
The invention aims to: aiming at the problems of the prior art for preparing the conductor material by using the anthracite, the invention provides an innovative process for preparing the conductor material by using the anthracite, the preparation process provided by the invention finally prepares the conductor material by using lower operation temperature and special calcining and oxygen-isolating roasting processes, the physical and chemical properties of the conductor material are the same as those of the prior conventional graphite, but the resistivity of the conductor material is better and the hardness of the conductor material is stronger, the energy consumption of the prior conductor material preparation is subversively reduced by the preparation process, and the practicability of the conductor material is stronger.
The technical scheme adopted by the invention is as follows: an innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting 'high-quality anthracite' with the calorific value of 5000-;
s2, processing the selected anthracite material into a corresponding shape;
s3, the anthracite processed into the corresponding forms is regularly placed into a calcining furnace layer by layer, and the anthracite is calcined by utilizing the spontaneous combustion function generated by the anthracite;
s4, when the burning temperature of the anthracite in the calcining furnace reaches 800-;
s5, baking the block anthracite for 1 to 3 hours in a baking furnace in an oxygen-isolated manner, and naturally cooling the baked block anthracite to obtain the anthracite conductor material.
Further, in step S4, the determination criteria for transferring the anthracite coal from the calciner to the roaster are: when the anthracite is blocky high-quality anthracite, the anthracite is calcined into light cherry red to orange reddish brown; when the anthracite is 'ordinary anthracite', the anthracite is calcined into orange reddish to yellow; when the anthracite is 'smokeless coal gangue', the anthracite is calcined into yellow or white and yellowish, and then the calcined anthracite can be transferred to a roasting furnace for natural oxygen-insulated roasting.
Further, in step S4, when the lump anthracite is "high-quality anthracite", the burning temperature of the lump anthracite in the calciner reaches 800-; when the blocky anthracite is 'ordinary anthracite', the blocky anthracite can be transferred into a roasting furnace for oxygen-isolated roasting after the burning temperature of the blocky anthracite in the roasting furnace reaches 850-; when the blocky anthracite is 'smokeless coal gangue', the blocky anthracite is transferred into a roasting furnace for oxygen-isolated roasting after the combustion temperature of the blocky anthracite reaches 1000-1200 ℃.
Furthermore, the resistance value of the conductor material prepared from the high-quality anthracite is 0.4-0.9 ohm, the resistivity of the conductor material is 0.1092-0.2457 ohm meters, and the Mohs hardness of the conductor material is 2-3 times that of graphite.
Further, in step S2, the high-quality anthracite is processed into lumps, and the processing specifications of the lumps are as follows: 30-50 mm: 30-50 mm, 30-30 mm.
Further, the type of the anthracite conductor material prepared in step S5 is block-shaped, and the prepared block-shaped anthracite conductor material can be processed into granular materials or powdery materials for use according to product requirements, or can be directly used in a solid shape.
Preferably, in step S5, the calcined anthracite coal is subjected to oxygen-insulated roasting in the roasting furnace for 1-3 hours.
Specifically, in the technical scheme provided by the invention, the anthracite conductor material can be prepared from the high-quality anthracite, the common anthracite and the smokeless coal gangue through the provided innovative process method, and the conductor material prepared from the common anthracite and the smokeless coal gangue has larger difference between the resistance value and the resistivity and the high-quality anthracite conductor material, but is also suitable for places with different requirements on the resistance value and the resistivity, and has higher hardness.
Further, after the spontaneous combustion function generated by the anthracite is utilized for calcination in the step S3, the generated slag dust can be used as organic fertilizer for crops after being simply treated, and the growth and development of the crops are facilitated.
Compared with the prior art, the invention has the beneficial effects that:
(1) aiming at the technical problems of the prior art of preparing conductor materials by anthracite, the invention provides an innovative process for preparing the conductor materials by anthracite, the preparation process provided by the invention finally prepares and obtains the conductor materials by lower operation temperature and special calcining and oxygen-isolating roasting processes, the physical and chemical properties of the conductor materials are the same as those of the prior conventional graphite, but the electrical resistivity is better and the hardness is stronger, the subversive spontaneous combustion self-calcining function of the preparation process reduces the energy consumption of the prior art of preparing conductor materials, and the practicability is stronger;
(2) the resistance value of the high-quality anthracite conductor material prepared by the method is 0.4-0.9 ohm, the resistivity of the conductor material is 0.1092-0.2457 ohm meters, the Mohs hardness of the conductor material is 2-3 times of that of normal graphite, and the conductor material has wider application than that of the conventional graphite;
(3) the inventive process for preparing the anthracite as the conductor material has the operating temperature of 600 plus 1200 ℃, the operating temperature of high-quality anthracite of 800 plus 850 ℃, the temperature of general anthracite of 850-1000 ℃, and the temperature of 1000 plus 1200 ℃, according to the records of the prior literature, the operating temperature of the prior method for preparing the conductor material from the anthracite is mostly more than 2800 plus 3000 ℃, even the temperature is higher, the method for preparing the conductor material from the anthracite, which is disclosed by the prior art, further limits the application and the popularization of the method for preparing the conductor material from the anthracite due to the overhigh operating temperature, and has poor practicability, the inventive process for preparing the conductor material from the anthracite has lower operating temperature, greatly reduces the required energy consumption in the preparation process, and the prepared anthracite conductor material has better performance in all aspects, the small-scale production is realized, the product is qualified, and the method is suitable for popularization and development;
(4) the result of comparing the C diffraction peak of the conductor material prepared by the preparation process with that of the existing common Shandong graphite and Hunan graphite shows that the C diffraction peak of the anthracite conductor material prepared by the preparation process provided by the invention is completely coincided with the diffraction peaks of the Shandong graphite and the Hunan graphite, so that the conductor material, the graphite conductor material and the anthracite conductor material with good crystallinity and the performance are both shown; secondly, the comparison result of the electronic crystal image of the anthracite conductor material prepared by the preparation process with modern Shandong graphite and Hunan graphite shows that the anthracite conductor material prepared by the preparation process provided by the invention forms a flaky crystal structure body like the Shandong graphite and the Hunan graphite, and further proves the feasibility and effectiveness of the preparation method provided by the invention.
Drawings
FIG. 1 is an electronic crystal image comparison diagram of the anthracite conductive material prepared by the preparation process provided by the invention and the existing Shandong graphite and Hunan graphite;
FIG. 2 is a comparison graph of C diffraction peaks of the anthracite conductive material prepared by the preparation process provided by the invention with those of the existing common Shandong graphite and Hunan graphite;
FIG. 3 is a comparison graph of the C diffraction peaks of the anthracite conductive material prepared by the preparation process provided by the invention compared with the existing common Shandong graphite, Hunan graphite and the anthracite raw coal used before preparation;
FIG. 4 is a view showing a scenario of the application of the anthracite conductive material prepared by the preparation process of the present invention in the engineering process in powder and block form;
FIG. 5 is a diagram showing a specific product of the bulk anthracite conductive material prepared by the preparation process provided by the present invention;
description of the drawings: 1-powdery anthracite conductor material and 2-solid square column anthracite conductor material.
Detailed Description
The present invention will be described in further detail in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting high-quality anthracite with the calorific value of 5000-7000 kilocalories or more;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 30mm:30mm, 10mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, and putting the blocky high-quality anthracite layers into a calcining furnace to be calcined by utilizing the spontaneous combustion function of the anthracite;
s4, when the burning temperature of the blocky high-quality anthracite reaches 800 ℃ in the calcining furnace, when the blocky anthracite is calcined into the color from light cherry red to orange reddish brown, the calcined anthracite can be transferred to an oxygen-isolated calcining furnace for calcining;
s5, baking for 1 hour in a baking furnace in a way of isolating oxygen, and naturally cooling the baked blocky anthracite to obtain the anthracite conductor material.
Example 2
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting high-quality anthracite with the calorific value of 5000-7000 kilocalories and above;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 40mm: 40mm, 20mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, and putting the blocky high-quality anthracite layers into a calcining furnace to be calcined by utilizing the spontaneous combustion function of the anthracite;
s4, when the burning temperature of the blocky anthracite in the calcining furnace reaches 800 ℃, the anthracite is transferred to the calcining furnace for oxygen-isolated roasting, and when the blocky anthracite is calcined into the color from light cherry red to orange reddish, the calcined anthracite can be transferred to the calcining furnace for roasting;
s5, baking for 2 hours in a baking furnace in a anaerobic mode, and naturally cooling the baked blocky anthracite to obtain the anthracite conductor material.
Example 3
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting high-quality anthracite with the calorific value of 5000-7000 kilocalories and above;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 50mm:50mm, 30mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, and putting the blocky high-quality anthracite layers into a calcining furnace to be calcined by utilizing the spontaneous combustion function of the anthracite;
s4, when the burning temperature of the blocky anthracite in the calcining furnace reaches 850 ℃, transferring the anthracite into the calcining furnace for oxygen-isolated roasting, and when the blocky anthracite is roasted into the color from light cherry red to orange reddish, transferring the roasted anthracite into the calcining furnace for roasting;
s5, roasting in a roasting furnace for 2 hours in an oxygen-isolated mode, and naturally cooling the roasted massive anthracite to obtain the anthracite conductor material.
Example 4
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting high-quality anthracite with the calorific value of 5000-7000 kilocalories or more;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 50mm:50mm, 40mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, and putting the blocky high-quality anthracite layers into a calcining furnace to be calcined by utilizing the spontaneous combustion function of the anthracite;
s4, when the burning temperature of the blocky anthracite coal in the calcining furnace reaches 850 ℃, when the blocky anthracite coal is calcined into orange reddish-brown color, the calcined anthracite coal can be transferred to the calcining furnace for oxygen-isolated calcination;
s5, roasting in a roasting furnace for 2 hours in an oxygen-isolated mode, and naturally cooling the roasted massive anthracite to obtain the anthracite conductor material.
Example 5
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting general anthracite with the calorific value below 5000 kcal;
s2, crushing the selected general anthracite into pieces with the length, width and height respectively as follows: 45 mm:30mm, 30mm of blocky anthracite;
s3, regularly stacking the common anthracite layers processed into blocks into a calcining furnace, and calcining by utilizing the spontaneous combustion function generated by the anthracite;
s4, when the burning temperature of the blocky anthracite in the calcining furnace reaches 850 ℃, transferring the blocky anthracite into the calcining furnace for oxygen-isolated roasting, and when the blocky anthracite is burnt to have a color from orange reddish to light orange, transferring the roasted anthracite into the calcining furnace for roasting;
s5, baking the block anthracite in a baking furnace for 2.5 hours in an oxygen-isolated manner, and naturally cooling the baked block anthracite to obtain the anthracite conductor material.
Example 6
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting general anthracite with the calorific value of 5000 kcal;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 50mm:50mm, 50mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, and putting the blocky high-quality anthracite layers into a calcining furnace to be calcined by utilizing the spontaneous combustion function of the anthracite;
s4, when the burning temperature of the blocky anthracite coal in the calcining furnace reaches 1000 ℃, when the blocky anthracite coal is burnt to be light orange to yellow, the calcinated anthracite coal can be transferred to the calcining furnace for oxygen-isolated calcination;
s5, roasting for 3 hours in the roasting furnace in an oxygen-isolated mode, and naturally cooling the roasted massive anthracite to obtain the anthracite conductor material.
Example 7
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting general anthracite with the calorific value of 5000 kcal or less;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 50mm:50mm, 50mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, and putting the blocky high-quality anthracite layers into a calcining furnace to be calcined by utilizing the spontaneous combustion function of the anthracite;
s4, when the burning temperature of the blocky anthracite coal in the calcining furnace reaches 950 ℃, when the blocky anthracite coal is burnt to be light orange to yellow, the calcined anthracite coal can be transferred to the calcining furnace for oxygen-isolated calcination;
s5, roasting for 3 hours in the roasting furnace in an oxygen-isolated mode, and naturally cooling the roasted massive anthracite to obtain the anthracite conductor material.
Example 8
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting coal gangue containing multiple layers of anthracite in the smokeless coal gangue;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 30mm: 40mm, 25mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, putting the blocky high-quality anthracite layers into a calcining furnace, and calcining the blocky high-quality anthracite layers by utilizing the spontaneous combustion function of other anthracite;
s4, when the burning temperature of the blocky anthracite in the calcining furnace reaches 1100 ℃, the blocky anthracite is transferred to the calcining furnace to be roasted in an oxygen-insulated way, and when the blocky anthracite is roasted to the color between yellow and light yellow, the roasted anthracite can be transferred to the calcining furnace to be roasted;
s5, roasting for 2.5 hours in a roasting furnace in an oxygen-isolated mode, and naturally cooling the roasted massive anthracite to obtain the smokeless coal gangue conductor material.
Example 9
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting coal gangue containing 1-2 layers of anthracite in the smokeless coal gangue;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 30mm:30mm, 30mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, putting the blocky high-quality anthracite layers into a calcining furnace, and calcining the blocky high-quality anthracite layers by utilizing the spontaneous combustion function of other anthracite;
s4, when the burning temperature of the blocky anthracite in the calcining furnace reaches 1200 ℃, the blocky anthracite is transferred to the calcining furnace for oxygen-insulated roasting, and when the blocky anthracite is burnt to be light yellow, the burnt anthracite gangue can be transferred to the calcining furnace for roasting;
s5, roasting for 3 hours in the roasting furnace in an oxygen-isolated mode, and naturally cooling the roasted massive anthracite to obtain the smokeless coal gangue conductor material.
Example 10
An innovative process for preparing anthracite coal into a conductor material, which comprises the following specific steps:
s1, selecting black smokeless coal gangue;
s2, crushing the selected high-quality anthracite into pieces with the length, width and height respectively as follows: 30mm:30mm, 30mm of blocky anthracite;
s3, regularly stacking the blocky high-quality anthracite layers, putting the blocky high-quality anthracite layers into a calcining furnace, and calcining the blocky high-quality anthracite layers by utilizing the spontaneous combustion function of other anthracite;
s4, when the burning temperature of the blocky anthracite in the calcining furnace reaches 1000 ℃, when the blocky anthracite is burnt to be white and yellowish, the burnt anthracite gangue can be transferred to the calcining furnace to be roasted in an oxygen-isolating way;
s5, roasting in a roasting furnace in an oxygen-isolated manner for 3 hours, and naturally cooling the roasted massive anthracite to obtain the smokeless coal gangue conductor material.
Example 11
In order to further improve the feasibility and effectiveness of the innovative process for preparing the anthracite coal into the conductor material, the following test examples are carried out:
as shown in fig. 2 of the specification, in the experimental example, the conductive material prepared by the preparation process provided by the present invention is compared with the existing common Shandong graphite and Hunan graphite by using the C diffraction peak, and the results of the C diffraction peak-to-contrast diagram show that the C diffraction peak of the anthracite conductive material prepared by the preparation process provided by the present invention is completely overlapped with the diffraction peaks of the Shandong graphite and Hunan graphite, so that the three materials are anthracite conductive and graphite conductive materials with good crystallinity, and all have conductive properties and performances.
As shown in the attached figure 3 in the specification, the experimental example compares the conductor material prepared by the preparation process provided by the invention with the existing common Shandong graphite and Hunan graphite and the anthracite raw coal used before preparation, and the comparison result of C diffraction peak pair shows that the anthracite raw coal is not a conductor material and is not calcined and roasted, so that no carbon diffraction peak ray exists, and the carbon conductor material prepared by the preparation process is completely coincident with the existing common Shandong graphite and Hunan graphite.
As shown in fig. 1 of the specification, the experimental example further compares the electronic crystal images of the anthracite conductive material prepared by the preparation process with the existing Shandong graphite and Hunan graphite, and the comparison result of the electronic crystal images among the three shows that the anthracite conductive material prepared by the preparation process provided by the invention forms a flaky crystal structure like the Shandong graphite and Hunan graphite.
As shown in fig. 4 of the specification, the experimental example is a scene display diagram in which a square column type (as shown in fig. 5 of the specification) and a powdered anthracite conductor material prepared by the preparation process provided by the invention are used in combination, and the application scene is that the square column type (as shown in fig. 5 of the specification) and the powdered anthracite conductor material are used in combination and applied to a rock grounding groove to increase the volume of a grounding grid flat steel and reduce the grounding resistance value of a rock area to achieve the purpose of discharging lightning strike current and self fault current of equipment instantly and quickly, and the effect of the combination is excellent.
As shown in the attached drawing 5, the attached drawing shows that the anthracite conductor material prepared by the preparation process provided by the invention is produced into a powdery material product, then is prepared by other materials and hot-dip galvanized flat steel, and is further processed by a hydraulic machine to prepare the lightning protection grounding conductor module, namely, the application of the anthracite conductor material prepared by the preparation process provided by the invention is the lightning protection grounding conductor module product with two types, namely a square column type and a square plate type (or a cylindrical type and a cylindrical quincunx type), and the product is used as a material for reducing the grounding resistance value in the lightning protection grounding engineering of various high-soil resistivity areas in 2010.
The powdered anthracite conductor material prepared by the preparation process provided by the invention is also manufactured into a product for reducing grounding resistance by lightning grounding, and is used in a karst rock deep well grounding electrode of FAST engineering core equipment-cabin docking platform, namely a 500-meter spherical radio astronomical telescope in China, and the design requirement that the grounding resistance is less than 1 ohm is better than that of the karst rock grounding resistance, so that the latest record of the high standard requirement of the karst rock grounding resistance is created.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. An innovative process for preparing anthracite coal into a conductor material is characterized by comprising the following specific steps:
s1, selecting 'high-quality anthracite' with the calorific value of 5000-;
s2, processing the selected anthracite material into a corresponding shape;
s3, the anthracite processed into the corresponding forms is regularly placed into a calcining furnace layer by layer, and the anthracite is calcined by utilizing the spontaneous combustion function generated by the anthracite;
s4, when the burning temperature of the anthracite in the calcining furnace reaches 800-;
s5, baking the block anthracite for 1 to 3 hours in a baking furnace in an oxygen-isolated manner, and naturally cooling the baked block anthracite to obtain the anthracite conductor material.
2. The innovative process of producing anthracite as a conductive material as set forth in claim 1, characterized in that in step S4, the criteria for the anthracite transfer from the calciner to the calciner are: when the anthracite is blocky high-quality anthracite, the anthracite is calcined into light cherry red to orange reddish brown; when the anthracite is 'ordinary anthracite', the anthracite is calcined into orange reddish to yellow; when the anthracite is 'smokeless coal gangue', the anthracite is calcined into yellow or white and yellowish, and then the calcined anthracite can be transferred to a roasting furnace for natural oxygen-insulated roasting.
3. An innovative process for preparing anthracite as a conductive material as claimed in claim 1, wherein in step S4, when the lump anthracite is "high quality anthracite", the lump anthracite can be transferred to a roaster for oxygen-isolated roasting after the burning temperature of the lump anthracite in the roaster reaches 800-850 ℃.
4. The innovative process of preparing anthracite as set forth in claim 1, characterized in that in step S4, when the lump anthracite is "general anthracite", the lump anthracite can be transferred to a roaster for oxygen isolated roasting after the burning temperature of the lump anthracite in the roaster reaches 850-; in step S4, when the lump anthracite is "smokeless coal gangue", the combustion temperature of the lump anthracite reaches 1000-.
5. The innovative process for preparing anthracite as a conductor material according to claim 1, characterized in that the conductor material prepared from the high-quality anthracite has a resistance value of 0.4-0.9 ohm, a resistivity of 0.1092-0.2457 ohm-meters, and a mohs hardness 2-3 times that of graphite.
6. The innovative process of preparing anthracite as set forth in claim 1, wherein said anthracite is processed into lumps in step S2, and the processing specifications of said lumps are: 30-50 mm: 30-50 mm, 10-30 mm.
7. The innovative process of preparing anthracite as set forth in claim 1, wherein said anthracite as conductor material is made in block form in step S5, and the block-shaped anthracite as conductor material is processed into granular or powdery products and shaped solid products for use according to the requirements of the products.
8. The innovative process of making anthracite coal as a conductive material as in claim 1 further characterized by the step of firing the calcined anthracite coal in a firing furnace for 1-3 hours in step S5.
9. The innovative process of preparing anthracite as conductor material as claimed in claim 1, characterized in that in step S3, after the anthracite is calcined by the spontaneous combustion function of anthracite, the produced slag dust can be used as organic fertilizer for crops after simple treatment, which is more beneficial to the growth and development of crops.
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