CN112142483B - Preparation method of hole-plugging mud ball suitable for industrial silicon smelting silicon - Google Patents

Preparation method of hole-plugging mud ball suitable for industrial silicon smelting silicon Download PDF

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Publication number
CN112142483B
CN112142483B CN202010982967.XA CN202010982967A CN112142483B CN 112142483 B CN112142483 B CN 112142483B CN 202010982967 A CN202010982967 A CN 202010982967A CN 112142483 B CN112142483 B CN 112142483B
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China
Prior art keywords
mixture
silicon
mud ball
plugging
hole
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CN112142483A (en
Inventor
毕红兴
卢国洪
文建华
杨贵明
王正勇
王国卫
范奉伟
李国阳
张塾康
朱金刚
徐福昌
李永强
张忠益
徐加雄
高光富
张庆洪
康万福
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YUNNAN YONGCHANG SILICON INDUSTRY CO LTD
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YUNNAN YONGCHANG SILICON INDUSTRY CO LTD
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    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/021—Preparation
    • 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
    • C04B33/13—Compounding ingredients
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon

Abstract

The invention provides a preparation method of a hole plugging mud ball suitable for silicon smelting in industrial silicon. The preparation method of the hole plugging mud ball suitable for industrial silicon smelting to produce silicon comprises the following steps: s1: mixing high clay, petroleum coke powder and electrode paste according to a certain proportion to obtain a mixture A; s2: adding a proper amount of water into the mixture A and fully stirring until the mixture A has certain viscosity. Obtaining a mixture B; s3: manually kneading the mixture B into a horn shape according to the size of each hearth furnace eye; s4: and naturally drying the trumpet-shaped mixture B to form the mud ball for plugging the eyes. The invention adopts the petroleum coke powder with lower iron content to replace part of high clay, thereby reducing the iron content of mud balls and laying a foundation for improving the product quality, when a furnace eye is opened, the mud balls in the furnace eye basically and completely enter silicon melt, the iron can be reduced by 0.030 percent and the titanium can be reduced by 0.002 percent by 2.8t silicon melt in each furnace, the impurity rate is reduced, and the secondary pollution of the product is avoided.

Description

Preparation method of hole-plugging mud ball suitable for industrial silicon smelting silicon
Technical Field
The invention relates to the technical field of silicon preparation, in particular to a preparation method of a hole plugging mud ball suitable for smelting silicon from industrial silicon.
Background
The hole-blocking mud ball is made by mixing high clay and carbonaceous materials in proportion, is horn-shaped, and is an important consumable material for blocking a furnace hole and preventing high-temperature silicon melt in a furnace from being discharged when silicon is discharged.
The silicon discharging furnace eye is an important channel for discharging silicon melt from an ore smelting furnace in the industrial silicon smelting process, the smelting operation of intermittent discharging is generally carried out for 1-1.5 hours after one hour of smelting, the furnace eye needs to be plugged and compacted by mud balls after discharging the high-temperature silicon melt after discharging is finished so as to prevent the high-temperature silicon melt from leaking and running out of the eye, most of the mud balls plugged in the furnace eye enter the silicon melt when the furnace eye is opened after discharging the silicon, and the product degradation can be caused after a large amount of the mud balls enter the silicon melt because the mud balls contain impurity elements such as iron, titanium and the like which cannot be removed during refining.
The mud ball adopted in the market is prepared by mixing high clay and electrode paste according to the ratio of 2-3:1, wherein the clay contains iron: 7.6%, titanium: 0.36 percent; the electrode paste contains 0.09% of iron and 0.52% of titanium, the iron content of the mud balls prepared by mixing is 5.9%, the titanium content of the mud balls is 0.52%, 5-8 mud balls are plugged in each time, each mud ball weighs about 5Kg, and when the furnace eye is opened, the mud balls in the furnace eye basically enter the silicon melt, so that secondary pollution is caused to the product.
Therefore, there is a need to provide a new method for preparing plugging mud balls suitable for silicon smelting in industrial silicon to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a preparation method of the plugging mud ball for smelting silicon from industrial silicon, which reduces the impurity rate and avoids secondary pollution of products.
In order to solve the technical problem, the preparation method of the hole plugging mud ball for smelting silicon from industrial silicon, which is provided by the invention, comprises the following steps:
s1: mixing high clay, petroleum coke powder and electrode paste according to a certain proportion to obtain a mixture A;
s2: adding a proper amount of water into the mixture A and fully stirring until the mixture A has certain viscosity. Obtaining a mixture B;
s3: manually kneading the mixture B into a horn shape according to the size of each hearth furnace eye;
s4: and naturally drying the trumpet-shaped mixture B to form the mud ball for plugging the eyes.
Preferably, the ratio of the high clay, the petroleum coke powder and the electrode paste in the step S1 is 1:1: 1.
Preferably, the mass of the mud ball for plugging the eyes is about 5 Kg.
Preferably, the iron content of the mud ball for plugging the eyes is 2.57%, and the titanium content of the mud ball for plugging the eyes is 0.29%.
Preferably, the number of the one-time plugging mud ball is 5-8.
Compared with the related technology, the preparation method of the eye-plugging mud ball for smelting silicon from industrial silicon has the following beneficial effects:
the invention provides a preparation method of a hole-plugging mud ball suitable for silicon smelting in the industrial silicon, which adopts petroleum coke powder with lower iron content to replace part of high clay, thereby reducing the iron content of the mud ball and laying a foundation for improving the product quality.
Drawings
FIG. 1 is a block flow diagram of a preferred embodiment of the method for preparing a plugging mud ball suitable for silicon smelting from industrial silicon according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 1 is a block flow diagram of a preferred embodiment of the method for preparing a plugging mud ball for silicon smelting from industrial silicon according to the present invention. The preparation method of the eye-plugging mud ball suitable for smelting silicon from industrial silicon comprises the following steps:
s1: mixing high clay, petroleum coke powder and electrode paste according to a certain proportion to obtain a mixture A;
s2: adding a proper amount of water into the mixture A and fully stirring until the mixture A has certain viscosity. Obtaining a mixture B;
s3: manually kneading the mixture B into a horn shape according to the size of each hearth furnace eye;
s4: and naturally drying the trumpet-shaped mixture B to form the mud ball for plugging the eyes.
The ratio of the high clay, the petroleum coke powder and the electrode paste in the step S1 is 1:1: 1.
The mass of the mud ball for plugging the eyes is about 5 Kg.
The iron content of the mud ball for plugging the eyes is 2.57%, and the titanium content of the mud ball for plugging the eyes is 0.29%.
The number of the one-time plugging mud balls is 5-8.
Compared with the related technology, the preparation method of the eye-plugging mud ball for smelting silicon from industrial silicon has the following beneficial effects:
the invention provides a preparation method of a hole-plugging mud ball suitable for silicon smelting in the industrial silicon, which adopts petroleum coke powder with lower iron content to replace part of high clay, thereby reducing the iron content of the mud ball and laying a foundation for improving the product quality.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (3)

1. The preparation method of the hole-plugging mud ball suitable for industrial silicon smelting to produce silicon is characterized by comprising the following steps of:
s1: mixing high clay, petroleum coke powder and electrode paste according to the proportion of 1:1:1 to obtain a mixture A;
s2: adding a proper amount of water into the mixture A, and fully stirring until the mixture A has certain viscosity to obtain a mixture B;
s3: manually kneading the mixture B into a horn shape according to the size of each hearth furnace eye;
s4: and naturally air-drying the trumpet-shaped mixture B to form the hole-plugging mud ball, wherein the iron content of the hole-plugging mud ball is 2.57 percent, and the titanium content of the hole-plugging mud ball is 0.29 percent.
2. The method of claim 1, wherein the mass of the mud ball is 5 kg.
3. The method for preparing the eye-plugging mud ball according to claim 1, wherein the number of the used one-time eye plugging mud ball is 5-8.
CN202010982967.XA 2020-09-18 2020-09-18 Preparation method of hole-plugging mud ball suitable for industrial silicon smelting silicon Active CN112142483B (en)

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Citations (9)

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CN101528635A (en) * 2006-10-20 2009-09-09 黑崎播磨株式会社 Mud material
CN102442670A (en) * 2011-09-26 2012-05-09 云南永昌硅业股份有限公司 Preparation method of reducing agent for silicon metal smelting
CN104961482A (en) * 2015-06-24 2015-10-07 湖州众星耐火材料有限公司 Refractory material recycling technological process
CN106636693A (en) * 2015-11-03 2017-05-10 重庆天彩铝业有限公司 Preparation process for reducing agent high-silicon aluminum alloy used for hot-method magnesium smelting
CN108276011A (en) * 2018-03-02 2018-07-13 徐州苏牌高温新材料有限公司 A kind of blast furnace iron notch stemming and preparation method thereof
CN108329042A (en) * 2018-05-11 2018-07-27 鞍钢股份有限公司 A kind of high nitrogen type titaniferous environmental-protection furnace stemming
CN109809825A (en) * 2019-02-27 2019-05-28 浙江皓翔矿业有限公司 A kind of pyrophyllite smelts blocking anhydrous stemming and preparation method thereof
CN110205429A (en) * 2019-06-25 2019-09-06 石嘴山市宁鑫达工贸有限公司 A kind of pure silica smelting process
CN112266254A (en) * 2020-10-14 2021-01-26 石横特钢集团有限公司 Hole-plugging stemming for submerged arc furnace and preparation method thereof

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CN102432320A (en) * 2011-09-22 2012-05-02 云南文山斗南锰业股份有限公司 Hole-blocking refractory material for taphole of ore smelting electric furnace and manufacturing method thereof
CN104140276B (en) * 2013-05-09 2016-07-06 中冶建筑研究总院有限公司 Tamping plug for blast furnace spout and preparation method thereof
CN104390468B (en) * 2014-11-12 2016-05-18 云南永昌硅业股份有限公司 A kind of industrial silicon smelting furnace eye restorative procedure
CN110243185B (en) * 2019-04-23 2021-02-05 内蒙古鄂尔多斯电力冶金集团股份有限公司 Hole plugging material for high-silicon alloy submerged arc furnace
CN110042239A (en) * 2019-04-30 2019-07-23 宁夏金兰山冶金有限公司 A kind of silicon-manganese alloy smelting process

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101528635A (en) * 2006-10-20 2009-09-09 黑崎播磨株式会社 Mud material
CN102442670A (en) * 2011-09-26 2012-05-09 云南永昌硅业股份有限公司 Preparation method of reducing agent for silicon metal smelting
CN104961482A (en) * 2015-06-24 2015-10-07 湖州众星耐火材料有限公司 Refractory material recycling technological process
CN106636693A (en) * 2015-11-03 2017-05-10 重庆天彩铝业有限公司 Preparation process for reducing agent high-silicon aluminum alloy used for hot-method magnesium smelting
CN108276011A (en) * 2018-03-02 2018-07-13 徐州苏牌高温新材料有限公司 A kind of blast furnace iron notch stemming and preparation method thereof
CN108329042A (en) * 2018-05-11 2018-07-27 鞍钢股份有限公司 A kind of high nitrogen type titaniferous environmental-protection furnace stemming
CN109809825A (en) * 2019-02-27 2019-05-28 浙江皓翔矿业有限公司 A kind of pyrophyllite smelts blocking anhydrous stemming and preparation method thereof
CN110205429A (en) * 2019-06-25 2019-09-06 石嘴山市宁鑫达工贸有限公司 A kind of pure silica smelting process
CN112266254A (en) * 2020-10-14 2021-01-26 石横特钢集团有限公司 Hole-plugging stemming for submerged arc furnace and preparation method thereof

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