CN101696364A - Metallurgical lump coke bonding agent manufactured by using coke powder and preparation method thereof - Google Patents

Metallurgical lump coke bonding agent manufactured by using coke powder and preparation method thereof Download PDF

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CN101696364A
CN101696364A CN200910070888A CN200910070888A CN101696364A CN 101696364 A CN101696364 A CN 101696364A CN 200910070888 A CN200910070888 A CN 200910070888A CN 200910070888 A CN200910070888 A CN 200910070888A CN 101696364 A CN101696364 A CN 101696364A
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coke
binder
powder
paste
bentonite
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亢景付
蒋晓鸥
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Tianjin University
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Abstract

本发明涉及一种以焦炭碎末制造冶金块焦的粘结剂及其制备方法,属于制备冶金焦炭的粘结剂技术。所述的粘结剂组成为:玉米淀粉2%~5%;膨润土10%~20%;烟煤粉20%~32%;纯碱0.03%~0.05%;水30%~45%。其制备方法,按玉米淀粉与膨润土、烟煤、纯碱和水的质量比,在常温下把水、玉米淀粉和纯碱混合搅拌均匀,然后加热至50℃~80℃。在加热过程中不断搅拌,使之成为浆糊;然后用搅拌机把浆糊、膨润土和烟煤粉搅拌,使之混合均匀成膏泥状,即成为以焦炭碎末制造冶金块焦的粘结剂。本发明的优点在于,制备过程简单,原料易得,制得的粘结剂中不含对钢铁冶炼有害的成分,用于粘结焦炭碎末制得的冶金块焦,固定炭含量高、耐温强度好和燃烧性能佳。The invention relates to a binder for producing metallurgical lump coke from coke powder and a preparation method thereof, belonging to the binder technology for preparing metallurgical coke. The binder is composed of: 2%-5% cornstarch; 10%-20% bentonite; 20%-32% bituminous coal powder; 0.03%-0.05% soda ash; 30%-45% water. According to the mass ratio of cornstarch, bentonite, bituminous coal, soda ash and water, the water, cornstarch and soda ash are mixed and stirred uniformly at normal temperature, and then heated to 50°C-80°C. Stir continuously during the heating process to make it into a paste; then use a mixer to stir the paste, bentonite and bituminous coal powder to make it evenly mixed into a paste, which becomes the binder for making metallurgical lump coke from coke powder . The advantages of the present invention are that the preparation process is simple, the raw materials are easy to obtain, and the prepared binder does not contain harmful ingredients for iron and steel smelting. Good temperature strength and good combustion performance.

Description

以焦炭碎末制造冶金块焦的粘结剂及其制备方法Binder for producing metallurgical lump coke from coke powder and preparation method thereof

技术领域 technical field

本发明涉及一种以焦炭碎末制造冶金块焦的粘结剂及其制备方法,属于制备冶金焦炭的粘结剂技术领域。The invention relates to a binder for producing metallurgical lump coke from coke powder and a preparation method thereof, belonging to the technical field of binders for preparing metallurgical coke.

背景技术 Background technique

焦炭是冶金行业的重要原料,在运输装卸过程中,约有10%~15%的焦炭会变成碎焦末。据有关资料介绍,我国每年的碎焦末产量在5000万吨以上。受冶金焦炭的质量和粒度限制,大量的碎焦末只能做为低级燃料处理,或做为炼焦原料进行二次焦化。Coke is an important raw material in the metallurgical industry. During transportation and loading and unloading, about 10% to 15% of coke will become coke powder. According to relevant information, my country's annual output of crushed coke powder is more than 50 million tons. Limited by the quality and particle size of metallurgical coke, a large amount of crushed coke powder can only be treated as low-grade fuel, or used as coking raw materials for secondary coking.

利用碎焦末成型冶金块焦,是一项技术含量高,附加值大的煤炭深加工技术,也是煤化学等领域研究攻关的重要课题之一,具有重要的社会效益和经济效益。其技术关键之一是粘结剂的组成。The use of crushed coke powder to form metallurgical lump coke is a coal deep-processing technology with high technical content and high added value. It is also one of the important research topics in the fields of coal chemistry and other fields, and has important social and economic benefits. One of its technical keys is the composition of the binder.

中国实用技术市场网(www.kjchina.com/mtlj02.htm)介绍了几种利用碎焦末成型冶金块焦的专利技术。成型方法主要有静压成型和挤压成型两种,所用粘结剂主要有:China Practical Technology Market Network (www.kjchina.com/mtlj02.htm) introduces several patented technologies for forming metallurgical lump coke by using crushed coke powder. The molding methods mainly include static pressure molding and extrusion molding, and the binders used mainly include:

(1)以沥青和煤焦油为主要材料制造的粘结剂;(1) Adhesives made of asphalt and coal tar as main materials;

(2)以膨润土和纸浆废液为主要材料制造的粘结剂;(2) A binder made of bentonite and pulp waste liquid as main materials;

(3)以硅酸盐水泥、水和添加剂为主要材料制造的粘结剂;(3) Adhesives made of Portland cement, water and additives as main materials;

(4)以水、腐植酸钠、阳离子淀粉、膨润土、硅酸钠、ZCM-1型水溶性絮凝剂和一氧化碳助燃剂为主要材料制造的粘结剂;(4) Binder made of water, sodium humate, cationic starch, bentonite, sodium silicate, ZCM-1 water-soluble flocculant and carbon monoxide combustion enhancer as main materials;

(5)以钠水玻璃、十二烷基硫酸钠、氟硅酸钠和水为主要材料制造的粘结剂;(5) Adhesives made of sodium silicate, sodium lauryl sulfate, sodium fluorosilicate and water as main materials;

(6)以羟甲基纤维素、膨润土和调和剂为主要材料制造的粘结剂;(6) Adhesives made of hydroxymethyl cellulose, bentonite and blending agent as main materials;

(7)以氧化镁、氯化镁、水玻璃、尿素、水泥和水为主要材料制造的粘结剂;(7) Adhesives made of magnesium oxide, magnesium chloride, water glass, urea, cement and water as main materials;

(8)以沥青、氢氧化铝、高岭土和铝矾土为主要材料制造的粘结剂。(8) Binders made of asphalt, aluminum hydroxide, kaolin and bauxite as main materials.

采用上述粘结剂所制得的块焦,或存在着固定炭含量低、或存在着常温强度低、或存在着高温强度低、或存在着燃烧性能不佳的问题。The lump coke prepared by using the above-mentioned binder has the problems of low fixed carbon content, low strength at room temperature, low strength at high temperature, or poor combustion performance.

发明内容 Contents of the invention

本发明的目的在于提供一种以焦炭碎末制造冶金块焦的粘结剂及其制备方法。所述的粘结剂用以制备冶金块焦,具有固定炭含量高、耐温强度好和燃烧性能佳的特点。所述的制备方法过程简单。The object of the present invention is to provide a binder for producing metallurgical lump coke from coke powder and a preparation method thereof. The binder is used to prepare metallurgical lump coke, and has the characteristics of high fixed carbon content, good temperature resistance strength and good combustion performance. The preparation method is simple in process.

本发明是通过以下技术方案加以实现的,一种以焦炭碎末制造冶金块焦的粘结剂,其特征在于,该粘结剂由下列组分及各组分质量百分数组成:The present invention is achieved through the following technical scheme, a binder for producing metallurgical lump coke from coke powder, characterized in that the binder is composed of the following components and the mass percentages of each component:

玉米淀粉为2%~5%;膨润土为10%~20%;粘结指数(GR.I.)75的烟煤粉为20%~32%;纯碱NaOH为0.03%~0.05%;水为30%~45%,且各组分质量百分数之和为百分之百。2% to 5% of corn starch; 10% to 20% of bentonite; 20% to 32% of bituminous coal powder with a caking index (G RI ) of 75; 0.03% to 0.05% of soda ash NaOH; 30% to 30% of water 45%, and the sum of the mass percentages of each component is 100%.

上述粘结剂的制备方法,其特征在于包括以下过程:The preparation method of above-mentioned binding agent is characterized in that comprising following process:

按玉米淀粉∶膨润土∶粘结指数75的烟煤粉∶纯碱∶水的质量比为2~5∶20~32∶30~45∶0.0003~0.0005∶30~45,在常温下把水、玉米淀粉和纯碱混合搅拌均匀,然后加热至50℃~80℃。在加热过程中以搅拌速度20~30转/分钟搅拌30~40分钟,使之成为浆糊。然后用搅拌机把浆糊、膨润土和烟煤煤粉以搅拌速度30转/分钟搅拌5~8分钟,使之混合均匀成膏泥状,即成为以焦炭碎末制造冶金块焦的粘结剂。According to the mass ratio of corn starch: bentonite: bituminous coal powder with a cohesive index of 75: soda ash: water is 2~5: 20~32: 30~45: 0.0003~0.0005: 30~45, water, corn starch Mix and stir evenly with soda ash, then heat to 50°C~80°C. Stir at a stirring speed of 20-30 rpm for 30-40 minutes during the heating process to make it into a paste. Then use a mixer to stir the paste, bentonite and bituminous coal powder at a stirring speed of 30 rpm for 5-8 minutes, so that they are evenly mixed into a paste, which becomes a binder for making metallurgical lump coke from coke powder.

本发明的优点在于,制备过程简单,原料易得,制得的粘结剂中不含对钢铁冶炼有害的成分,用于粘结焦炭碎末制得的冶金块焦,具有固定炭含量高、耐温强度好和燃烧性能佳的特点。The advantages of the present invention are that the preparation process is simple, the raw materials are easy to obtain, and the prepared binder does not contain harmful components for iron and steel smelting. It is used for bonding metallurgical lump coke made from coke powder, and has high fixed carbon content, It has the characteristics of good temperature resistance strength and good combustion performance.

具体实施方式 Detailed ways

实施例1Example 1

把50kg水、6kg淀粉和0.06kg纯碱混合均匀,加热至60℃,在加热过程中不断搅拌30分钟,搅拌速度为20转/分钟,使之成为浆糊。然后再把所制浆糊与30kg膨润土、粘结指数为75的烟煤粉(大于100目)50kg混合,并以30转/分钟的转速搅拌5分钟,使混合物充分均匀成膏状,得到块焦粘结剂。Mix 50kg of water, 6kg of starch and 0.06kg of soda ash evenly, heat to 60°C, stir continuously for 30 minutes during the heating process, and the stirring speed is 20 rpm to make it into a paste. Then mix the prepared paste with 30 kg of bentonite and 50 kg of bituminous coal powder (greater than 100 mesh) with a cohesive index of 75, and stir at a speed of 30 rpm for 5 minutes to make the mixture fully uniform into a paste and obtain a lump Burnt adhesive.

实施例2Example 2

把50kg水、6kg淀粉和0.06kg纯碱混合均匀,加热至60℃,在加热过程中不断搅拌30分钟,搅拌速度为20转/分钟,使之成为浆糊。然后再把所制浆糊与40kg膨润土、粘结指数为75的烟煤粉(大于100目)60kg混合,并以30转/分钟的转速搅拌5分钟,使混合物充分均匀成膏状,得到块焦粘结剂。Mix 50kg of water, 6kg of starch and 0.06kg of soda ash evenly, heat to 60°C, stir continuously for 30 minutes during the heating process, and the stirring speed is 20 rpm to make it into a paste. Then mix the prepared paste with 40kg of bentonite and 60kg of bituminous coal powder (greater than 100 mesh) with a cohesive index of 75, and stir for 5 minutes at a speed of 30 rpm to make the mixture fully uniform into a paste and obtain a lump Burnt adhesive.

实施例3Example 3

把50kg水、6kg淀粉和0.06kg纯碱混合均匀,加热至60℃,在加热过程中不断搅拌30分钟,搅拌速度为30转/分钟,使之成为浆糊。然后再把所制浆糊与50kg膨润土、粘结指数为75的烟煤粉(大于100目)40kg混合,并以30转/分钟的速度搅拌5分钟,使混合物充分均匀成膏状,得到块焦粘结剂。Mix 50kg of water, 6kg of starch and 0.06kg of soda ash evenly, heat to 60°C, and stir continuously for 30 minutes during the heating process at a stirring speed of 30 rpm to make a paste. Then mix the prepared paste with 50kg of bentonite and 40kg of bituminous coal powder (greater than 100 mesh) with a cohesive index of 75, and stir for 5 minutes at a speed of 30 rpm to make the mixture fully uniform into a paste and obtain a lump Burnt adhesive.

实施例4Example 4

把50kg水、8kg淀粉和0.08kg纯碱混合均匀,加热至60℃,在加热过程中不断搅拌30分钟,搅拌速度为20转/分钟,使之成为浆糊。然后再把所制浆糊与30kg膨润土、粘结指数为75的烟煤粉(大于100目)40kg混合,并以30转/分钟的速度搅拌5分钟,使混合物充分均匀成膏状,得到块焦粘结剂。Mix 50kg of water, 8kg of starch and 0.08kg of soda ash evenly, heat to 60°C, and stir continuously for 30 minutes during the heating process at a stirring speed of 20 rpm to make a paste. Then mix the prepared paste with 30 kg of bentonite and 40 kg of bituminous coal powder (greater than 100 mesh) with a cohesive index of 75, and stir for 5 minutes at a speed of 30 rpm to make the mixture fully uniform into a paste and obtain a lump Burnt adhesive.

Claims (2)

1.一种以焦炭碎末制造冶金块焦的粘结剂,其特征在于,该粘结剂由下列组分及各组分质量百分数组成:1. A binder for manufacturing metallurgical lump coke with coke powder, characterized in that the binder consists of the following components and each component mass percentage: 玉米淀粉为2%~5%;膨润土为10%~20%;粘结指数75的烟煤粉为20%~32%;纯碱NaOH为0.03%~0.05%;水为30%~45%,且各组分质量百分数之和为百分之百。Corn starch is 2% to 5%; bentonite is 10% to 20%; bituminous coal powder with a caking index of 75 is 20% to 32%; soda ash NaOH is 0.03% to 0.05%; water is 30% to 45%, and The sum of the mass percentages of each component is 100%. 2.按权利要求1所述的以焦炭碎末制造冶金块焦的粘结剂的制备方法,其特征在于包括以下过程:按玉米淀粉∶膨润土∶粘结指数75的烟煤粉∶纯碱∶水的质量比为2~5∶10~20∶20~32∶0.0003~0.0005∶30~45,在常温下把水、玉米淀粉和纯碱混合搅拌均匀,然后加热至50℃~80℃,在加热过程中以搅拌速度20~30转/分钟搅拌30~40分钟,使之成为浆糊,然后用搅拌机把浆糊、膨润土和烟煤粉以搅拌速度30转/分钟搅拌5~8分钟,使之混合均匀成膏泥状,即成为以焦炭碎末制造冶金块焦的粘结剂。2. by the preparation method of the binding agent of making metallurgical lump coke with coke broken powder as claimed in claim 1, it is characterized in that comprising following process: press cornstarch: bentonite: bituminous coal powder of caking index 75: soda ash: water The mass ratio is 2~5:10~20:20~32:0.0003~0.0005:30~45. Mix water, cornstarch and soda ash evenly at room temperature, then heat to 50℃~80℃, during the heating process Stir at a stirring speed of 20-30 rpm for 30-40 minutes to make a paste, then use a mixer to stir the paste, bentonite and bituminous coal powder at a stirring speed of 30 rpm for 5-8 minutes to mix Evenly into a paste, it becomes the binder for making metallurgical lump coke from coke powder.
CN200910070888A 2009-10-21 2009-10-21 Metallurgical lump coke bonding agent manufactured by using coke powder and preparation method thereof Pending CN101696364A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102234720A (en) * 2011-07-18 2011-11-09 长安大学 Pellet binder prepared from residues in direct coal liquefaction process and preparation method thereof
CN102492520A (en) * 2011-12-07 2012-06-13 王变成 Efficiently polymerized combustion-supporting additive and energy-saving ecological energy fuel
CN102925237A (en) * 2012-11-13 2013-02-13 中国神华能源股份有限公司 Pulverized coal forming binder and bonding method for pulverized coal forming
CN108300531A (en) * 2018-02-07 2018-07-20 福建工程学院 A kind of composite coal binder and preparation method thereof
CN111363599A (en) * 2020-04-15 2020-07-03 宁夏中润工贸有限公司 Novel formed coke adhesive and method for preparing formed coke by using same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102234720A (en) * 2011-07-18 2011-11-09 长安大学 Pellet binder prepared from residues in direct coal liquefaction process and preparation method thereof
CN102234720B (en) * 2011-07-18 2012-12-12 长安大学 Pellet binder prepared from residues in direct coal liquefaction process and preparation method thereof
CN102492520A (en) * 2011-12-07 2012-06-13 王变成 Efficiently polymerized combustion-supporting additive and energy-saving ecological energy fuel
CN102492520B (en) * 2011-12-07 2014-08-06 王变成 Energy-saving ecological energy fuel
CN102925237A (en) * 2012-11-13 2013-02-13 中国神华能源股份有限公司 Pulverized coal forming binder and bonding method for pulverized coal forming
CN108300531A (en) * 2018-02-07 2018-07-20 福建工程学院 A kind of composite coal binder and preparation method thereof
CN108300531B (en) * 2018-02-07 2020-05-19 福建工程学院 Composite briquette adhesive and preparation method thereof
CN111363599A (en) * 2020-04-15 2020-07-03 宁夏中润工贸有限公司 Novel formed coke adhesive and method for preparing formed coke by using same

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Application publication date: 20100421