CN113683395A - Preparation process of fly ash sintered hollow brick - Google Patents

Preparation process of fly ash sintered hollow brick Download PDF

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Publication number
CN113683395A
CN113683395A CN202110950060.XA CN202110950060A CN113683395A CN 113683395 A CN113683395 A CN 113683395A CN 202110950060 A CN202110950060 A CN 202110950060A CN 113683395 A CN113683395 A CN 113683395A
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China
Prior art keywords
fly ash
shale
sludge
coal gangue
hollow brick
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CN202110950060.XA
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Chinese (zh)
Inventor
赵洪叶
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Ningguo Xinxin New Wall Material Co ltd
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Ningguo Xinxin New Wall Material Co ltd
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Priority to CN202110950060.XA priority Critical patent/CN113683395A/en
Publication of CN113683395A publication Critical patent/CN113683395A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/132Waste materials; Refuse; Residues
    • C04B33/1321Waste slurries, e.g. harbour sludge, industrial muds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/132Waste materials; Refuse; Residues
    • C04B33/1324Recycled material, e.g. tile dust, stone waste, spent refractory material
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00Clay-wares
    • C04B33/02Preparing or treating the raw materials individually or as batches
    • C04B33/13Compounding ingredients
    • C04B33/132Waste materials; Refuse; Residues
    • C04B33/135Combustion residues, e.g. fly ash, incineration waste
    • C04B33/1352Fuel ashes, e.g. fly ash
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a preparation process of a fly ash sintered hollow brick, which comprises the following steps: the method comprises the following steps of material conveying, stirring and mixing, storage, crushing, screening and filtering, secondary mixing and aging, wherein the total number of the steps is 7; according to the invention, through the mutual combination of the mixing proportion of 50% and 20% of the silt and the fly ash and the proportion of 20% and 10% of the shale and the coal gangue, the material usage amount of the hollow brick preparation process is rated, on one hand, the waste of the material is inhibited, the preparation process flow is promoted to be more standard, on the other hand, the two times of mixing and stirring work can be divided, the cohesiveness and the contact adsorbability of the mixing between the composite materials are promoted to be better, the use cost of the hollow brick preparation process is reduced, and the structural strength and the mechanical property of the hollow brick are improved.

Description

Preparation process of fly ash sintered hollow brick
Technical Field
The invention relates to the technical field of fly ash sintered hollow bricks, in particular to a preparation process of fly ash sintered hollow bricks.
Background
The hollow brick is a main wall material commonly used in the building industry, has become a first recommended product by the national building department due to the advantages of light weight, less raw material consumption and the like, is similar to red bricks, is made of clay and cinder ash as common raw materials, and has the properties of light weight, high strength, heat preservation, sound insulation, noise reduction and the like. Environmental protection and no pollution, and is an ideal filling material for frame structure buildings.
When the existing hollow brick is produced, a sintering method is often adopted, and before the hollow brick is sintered, a plurality of materials are required to be stirred and mixed to promote the intimate adsorption and combination of mud powder, inorganic filler and the like, however, the excessive materials are mixed together, so that the uniform adhesion and adsorption of the formed composite material are difficult to ensure, and the mixing property and the mechanical property of the internal structure of the hollow brick are reduced; and the material is irregular puts in the stirring, is difficult to not only guarantee the cohesiveness of air brick preparation, and increases the loss of material easily, increases the preparation cost of air brick, and during the material mixing of air brick, often need smash the great material of volume, impels the material to contact more easily complexly, however the volume of material is great, is difficult for smashing and collecting its is quick, increases the work degree of difficulty and the inconvenience of air brick preparation, reduces preparation efficiency.
Disclosure of Invention
The invention aims to provide a preparation process of a fly ash sintered hollow brick, which aims to solve the related problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation process of a fly ash sintered hollow brick comprises the following steps:
s1, material conveying:
the sludge and the fly ash are respectively and simultaneously put into a feeder according to the proportion of 50 percent and 20 percent, the sludge and the fly ash are in contact and mixed in advance, then the sludge and the fly ash are sent into a stirrer through a screw conveying mechanism, and the sludge and the fly ash can be promoted to obtain the pre-stirring and mixing effect under the guiding coordination of the screw conveyor by utilizing the pre-mixing of the sludge and the fly ash during the period;
s2, stirring and mixing:
A. when the sludge and the fly ash enter the stirrer, receiving and stirring the sludge and the fly ash by using the double-helix conical mixer, so that the sludge and the fly ash after pre-stirring are stirred uniformly;
B. the edge of the inner top of the double-helix conical mixer is provided with an annular spraying pipe, so that water can be filled into the sludge and the fly ash according to requirements, and the sprayed water can uniformly contact the inner wall of the double-helix conical mixer;
s3, storage:
after the sludge and the fly ash are completely stirred, the sludge and the fly ash can be placed in a double-helix conical mixer for 48 hours;
s4, crushing:
A. putting the shale and the coal gangue into a crusher according to the proportion of 20 percent to 10 percent, and washing the shale and the coal gangue with different sizes in advance to remove impurities and dust on the surfaces of the shale and the coal gangue;
B. crushing shale and coal gangue which are washed and have different sizes, crushing the shale and the coal gangue into small particles, and rolling the granular shale and the coal gangue to promote the components in the shale and the coal gangue to be adsorbed and mixed with each other, thereby changing the material properties of the shale and the coal gangue;
s5, screening and filtering:
A. the crushed and rolled shale and coal gangue are put into a hemispherical filter net bag, and the hemispherical filter net bag is promoted to wholly shake by a vibration motor to carry out automatic screening work;
B. after the shale and the coal gangue are completely filtered, the shale and the coal gangue which are qualified in filtering can be collected and transported, and the residual materials which are unqualified in filtering are all placed in a hemispherical filtering net bag, and then the residual materials can be placed into the crushing mechanism and the rolling mechanism again to carry out secondary crushing and rolling operation;
s6, secondary mixing:
putting the crushed, filtered and screened shale and coal gangue into a double-helix conical mixer, and contacting the crushed, filtered and screened shale and coal gangue with sludge and coal ash stored for 48 hours, so that the four admixtures can be mixed and stirred by the double-helix conical mixer;
s7, aging:
after the sludge, the fly ash, the shale and the coal gangue are completely stirred, the sludge, the fly ash, the shale and the coal gangue can be aged for 72 hours, and the storage time of the sludge and the fly ash and the aging time of the sludge and the shale and the coal gangue are controlled by a timing control table arranged on the outer wall of a double-helix conical mixer, so that the hollow brick can be formed after the aging.
Preferably, the feeding machine in the step S1, the screw conveyor and the stirrer are connected to each other, the screw conveyor in the step S1 is provided with a dust exhaust port at the top, and one side of the dust exhaust port is connected to a dust suction mechanism.
Preferably, the top of the double-helix conical mixer in the step S2 is provided with a water guide pipe communicated with the annular spray pipe, and the water guide pipe is provided with an external water inlet communicated with the water guide pipe.
Preferably, the top and the bottom of the inside of the pulverizer in the step S4 are respectively provided with a water inlet and a sewage outlet.
Preferably, the filtering gap of the filter net bag in the step S5 is not more than 2 mm.
Compared with the prior art, the invention provides a preparation process of a fly ash sintered hollow brick, which has the following beneficial effects:
1. according to the invention, through the mutual combination of the mixing proportion of 50% and 20% of the silt and the fly ash and the proportion of 20% and 10% of the shale and the coal gangue, the material usage amount of the hollow brick preparation process is rated, on one hand, the waste of the material is inhibited, the preparation process flow is promoted to be more standard, on the other hand, the two times of mixing and stirring work can be divided, the mixed adhesion and the contact adsorbability between the composite materials are promoted to be better, the use cost of the hollow brick preparation process is reduced, and the structural strength and the mechanical property of the hollow brick are improved.
2. The invention utilizes twice material compounding work to promote the preparation of the hollow brick material to have higher combination rate, and forces the shale and the coal gangue to be crushed into small-sized particles to be powdery by matching with the rolling and grinding functions through the pre-stirring mixing effect and the precise extraction process of screening and filtering, thereby promoting the dispersion rate and the reinforcement effect of the granular shale and the coal gangue to be better, further enhancing the compound bonding effect and the mixing rate among the materials and leading the preparation process of the hollow brick material with the structure to achieve the effect of twice with half the effort.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
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 preparation process of the fly ash sintered hollow brick shown in the attached figure 1 comprises the following steps:
s1, material conveying:
the sludge and the fly ash are respectively and simultaneously put into a feeder according to the proportion of 50 percent and 20 percent, the sludge and the fly ash are in contact and mixed in advance, then the sludge and the fly ash are sent into a stirrer through a screw conveying mechanism, and the sludge and the fly ash can be promoted to obtain the pre-stirring and mixing effect under the guiding coordination of the screw conveyor by utilizing the pre-mixing of the sludge and the fly ash during the period;
s2, stirring and mixing:
A. when the sludge and the fly ash enter the stirrer, receiving and stirring the sludge and the fly ash by using the double-helix conical mixer, so that the sludge and the fly ash after pre-stirring are stirred uniformly;
B. the edge of the inner top of the double-helix conical mixer is provided with an annular spraying pipe, so that water can be filled into the sludge and the fly ash according to requirements, and the sprayed water can uniformly contact the inner wall of the double-helix conical mixer;
s3, storage:
after the sludge and the fly ash are completely stirred, the sludge and the fly ash can be placed in a double-helix conical mixer for 48 hours;
s4, crushing:
A. putting the shale and the coal gangue into a crusher according to the proportion of 20 percent to 10 percent, and washing the shale and the coal gangue with different sizes in advance to remove impurities and dust on the surfaces of the shale and the coal gangue;
B. crushing shale and coal gangue which are washed and have different sizes, crushing the shale and the coal gangue into small particles, and rolling the granular shale and the coal gangue to promote the components in the shale and the coal gangue to be adsorbed and mixed with each other, thereby changing the material properties of the shale and the coal gangue;
s5, screening and filtering:
A. the crushed and rolled shale and coal gangue are put into a hemispherical filter net bag, and the hemispherical filter net bag is promoted to wholly shake by a vibration motor to carry out automatic screening work;
B. after the shale and the coal gangue are completely filtered, the shale and the coal gangue which are qualified in filtering can be collected and transported, and the residual materials which are unqualified in filtering are all placed in a hemispherical filtering net bag, and then the residual materials can be placed into the crushing mechanism and the rolling mechanism again to carry out secondary crushing and rolling operation;
s6, secondary mixing:
putting the crushed, filtered and screened shale and coal gangue into a double-helix conical mixer, and contacting the crushed, filtered and screened shale and coal gangue with sludge and coal ash stored for 48 hours, so that the four admixtures can be mixed and stirred by the double-helix conical mixer;
s7, aging:
after the sludge, the fly ash, the shale and the coal gangue are completely stirred, the sludge, the fly ash, the shale and the coal gangue can be aged for 72 hours, and the storage time of the sludge and the fly ash and the aging time of the sludge and the shale and the coal gangue are controlled by a timing control table arranged on the outer wall of a double-helix conical mixer, so that the hollow brick can be formed after the aging.
Furthermore, feeder in the S1 step, screw conveyer and mixer interconnect link together and combine, the dust exhaust mouth has been seted up at the screw conveyer top in the S1 step, and one side intercommunication of dust exhaust mouth has dust absorption mechanism, conveniently discharges dust and gas during mixing from it to utilize dust absorption mechanism to absorb the storage, make things convenient for subsequent clearance.
Further, the top of the double-helix conical mixer in the step S2 is provided with a water guide pipe communicated with the annular spraying pipe, the water guide pipe is provided with an external water inlet communicated with the annular spraying pipe, water liquid is conveniently sprayed into the double-helix conical mixer in an annular structure, the contact rate of the water liquid and the inner wall of the double-helix conical mixer is higher, and the convenience of subsequent cleaning work is improved.
Furthermore, the top and the bottom of the inside of the grinder in the step S4 are respectively provided with a water inlet and a sewage outlet, so that the grinder can be conveniently filled with water liquid to carry out cleaning and drainage work.
Further, the filtering gap of the filtering net bag in the step S5 is not more than 2 mm, so that the filtering size of the filtered shale and coal gangue is not more than 2 mm.
Furthermore, the timing control console in the step S7 is composed of an LED electronic timer and an installation platform, so that the storage time and the aging time can be recorded conveniently through the LED electronic timer, the daily observation of operators is facilitated, and the operation steps of the hollow brick preparation process can be easily adopted according to the reflected time.
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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A preparation process of a fly ash sintered hollow brick is characterized by comprising the following steps:
s1, material conveying:
the sludge and the fly ash are respectively and simultaneously put into a feeder according to the proportion of 50 percent and 20 percent, the sludge and the fly ash are in contact and mixed in advance, then the sludge and the fly ash are sent into a stirrer through a screw conveying mechanism, and the sludge and the fly ash can be promoted to obtain the pre-stirring and mixing effect under the guiding coordination of the screw conveyor by utilizing the pre-mixing of the sludge and the fly ash during the period;
s2, stirring and mixing:
A. when the sludge and the fly ash enter the stirrer, receiving and stirring the sludge and the fly ash by using the double-helix conical mixer, so that the sludge and the fly ash after pre-stirring are stirred uniformly;
B. the edge of the inner top of the double-helix conical mixer is provided with an annular spraying pipe, so that water can be filled into the sludge and the fly ash according to requirements, and the sprayed water can uniformly contact the inner wall of the double-helix conical mixer;
s3, storage:
after the sludge and the fly ash are completely stirred, the sludge and the fly ash can be placed in a double-helix conical mixer for 48 hours;
s4, crushing:
A. putting the shale and the coal gangue into a crusher according to the proportion of 20 percent to 10 percent, and washing the shale and the coal gangue with different sizes in advance to remove impurities and dust on the surfaces of the shale and the coal gangue;
B. crushing shale and coal gangue which are washed and have different sizes, crushing the shale and the coal gangue into small particles, and rolling the granular shale and the coal gangue to promote the components in the shale and the coal gangue to be adsorbed and mixed with each other, thereby changing the material properties of the shale and the coal gangue;
s5, screening and filtering:
A. the crushed and rolled shale and coal gangue are put into a hemispherical filter net bag, and the hemispherical filter net bag is promoted to wholly shake by a vibration motor to carry out automatic screening work;
B. after the shale and the coal gangue are completely filtered, the shale and the coal gangue which are qualified in filtering can be collected and transported, and the residual materials which are unqualified in filtering are all placed in a hemispherical filtering net bag, and then the residual materials can be placed into the crushing mechanism and the rolling mechanism again to carry out secondary crushing and rolling operation;
s6, secondary mixing:
putting the crushed, filtered and screened shale and coal gangue into a double-helix conical mixer, and contacting the crushed, filtered and screened shale and coal gangue with sludge and coal ash stored for 48 hours, so that the four admixtures can be mixed and stirred by the double-helix conical mixer;
s7, aging:
after the sludge, the fly ash, the shale and the coal gangue are completely stirred, the sludge, the fly ash, the shale and the coal gangue can be aged for 72 hours, and the storage time of the sludge and the fly ash and the aging time of the sludge and the shale and the coal gangue are controlled by a timing control table arranged on the outer wall of a double-helix conical mixer, so that the hollow brick can be formed after the aging.
2. The process for preparing a fly ash sintered hollow brick according to claim 1, wherein the process comprises the following steps: and the feeding machine in the step S1, the spiral conveyor and the stirring machine are mutually communicated and combined, the top of the spiral conveyor in the step S1 is provided with a dust exhaust port, and one side of the dust exhaust port is communicated with a dust collection mechanism.
3. The process for preparing a fly ash sintered hollow brick according to claim 1, wherein the process comprises the following steps: and a water guide pipe communicated with the annular spraying pipe is arranged at the top of the double-helix conical mixer in the step S2, and the water guide pipe is provided with an external water inlet communicated with each other.
4. The process for preparing a fly ash sintered hollow brick according to claim 1, wherein the process comprises the following steps: and a water inlet and a sewage outlet are respectively formed in the top and the bottom of the crusher in the step S4.
5. The process for preparing a fly ash sintered hollow brick according to claim 1, wherein the process comprises the following steps: and the filtering gap of the filter net bag in the step S5 is not more than 2 mm.
6. The process for preparing a fly ash sintered hollow brick according to claim 1, wherein the process comprises the following steps: the timing console in the step S7 is composed of an LED electronic timer and a mounting platform.
CN202110950060.XA 2021-08-18 2021-08-18 Preparation process of fly ash sintered hollow brick Pending CN113683395A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115368047A (en) * 2022-08-31 2022-11-22 中南大学 Annular sintering decarburization process for coal gangue

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785879A (en) * 2005-04-20 2006-06-14 贾守富 Sintered brick produced by sludge fly ash shale coal gangue and its preparation technology
CN102992737A (en) * 2012-10-12 2013-03-27 蚌埠华泰新型建材有限公司 Process for preparing shale gangue coal ash fired hollow bricks
CN104671743A (en) * 2015-01-29 2015-06-03 和县明生环保材料有限责任公司 Wear-resistant gangue-shale fired hollow brick and preparation method thereof
CN105693208A (en) * 2016-01-18 2016-06-22 金寨高峰新型建材有限公司 Sintered hollow brick prepared from silt and dumped stone powder
CN106278177A (en) * 2016-08-16 2017-01-04 明光市凯旋新型建材厂 A kind of production technology of hollow brick
CN107352966A (en) * 2017-08-15 2017-11-17 三明市华宝新型建材有限公司 A kind of colliery wastes brick and its production technology
CN108285325A (en) * 2018-01-26 2018-07-17 和县明生环保材料有限责任公司 A kind of production technology of high-content fly ash sintered hollow block
CN110451988A (en) * 2019-09-02 2019-11-15 合肥吴山新型建材有限公司 A kind of municipal sludge Refuse air brick formula and production method
CN111995426A (en) * 2020-08-14 2020-11-27 师宗县泰宇新型建材有限公司 High-strength coal gangue sintered perforated brick and preparation method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785879A (en) * 2005-04-20 2006-06-14 贾守富 Sintered brick produced by sludge fly ash shale coal gangue and its preparation technology
CN102992737A (en) * 2012-10-12 2013-03-27 蚌埠华泰新型建材有限公司 Process for preparing shale gangue coal ash fired hollow bricks
CN104671743A (en) * 2015-01-29 2015-06-03 和县明生环保材料有限责任公司 Wear-resistant gangue-shale fired hollow brick and preparation method thereof
CN105693208A (en) * 2016-01-18 2016-06-22 金寨高峰新型建材有限公司 Sintered hollow brick prepared from silt and dumped stone powder
CN106278177A (en) * 2016-08-16 2017-01-04 明光市凯旋新型建材厂 A kind of production technology of hollow brick
CN107352966A (en) * 2017-08-15 2017-11-17 三明市华宝新型建材有限公司 A kind of colliery wastes brick and its production technology
CN108285325A (en) * 2018-01-26 2018-07-17 和县明生环保材料有限责任公司 A kind of production technology of high-content fly ash sintered hollow block
CN110451988A (en) * 2019-09-02 2019-11-15 合肥吴山新型建材有限公司 A kind of municipal sludge Refuse air brick formula and production method
CN111995426A (en) * 2020-08-14 2020-11-27 师宗县泰宇新型建材有限公司 High-strength coal gangue sintered perforated brick and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115368047A (en) * 2022-08-31 2022-11-22 中南大学 Annular sintering decarburization process for coal gangue

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Application publication date: 20211123