CN108405076A - Vertical mill, carbonization blast furnace slag breaking method and system - Google Patents
Vertical mill, carbonization blast furnace slag breaking method and system Download PDFInfo
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- 239000002893 slag Substances 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000003763 carbonization Methods 0.000 title claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000012216 screening Methods 0.000 claims abstract description 24
- 238000010791 quenching Methods 0.000 claims abstract description 22
- 230000000171 quenching effect Effects 0.000 claims abstract description 22
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 238000004513 sizing Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000003801 milling Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000010298 pulverizing process Methods 0.000 abstract description 5
- 239000000843 powder Substances 0.000 description 7
- 239000010936 titanium Substances 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 238000000498 ball milling Methods 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
本发明属于磨矿技术领域，具体涉及一种立磨机、碳化高炉渣粉碎方法及系统。本发明公开的碳化高炉渣粉碎方法，包括步骤：对碳化高炉渣进行水淬，获得5mm以下的粒状碳化高炉渣；对粒状碳化高炉渣进行分级筛选，得到粗粒级碳化高炉渣和细粒级碳化高炉渣；对粗粒级碳化高炉渣进行初破，将粗粒级碳化破碎成细粒级碳化高炉渣；对细粒级碳化高炉渣进行立磨，立磨过程中，选粉机转速为100～130r/min、负压风机转速为1000～1500r/min、磨辊压力为3～9MPa，返料量为10％～60％。通过合理设置水淬、分级筛选、初破、立磨等工艺流程的参数，使碳化高炉渣目标段产品粒度在100～450目的占比达65％以上，提高了碳化高炉渣的产能、降低了能耗。
The invention belongs to the technical field of ore grinding, and in particular relates to a vertical mill, a carbonized blast furnace slag crushing method and a system. The method for pulverizing carbonized blast furnace slag disclosed by the present invention comprises the steps of: water quenching carbonized blast furnace slag to obtain granular carbonized blast furnace slag less than 5 mm in size; classifying and screening granular carbonized blast furnace slag to obtain coarse-grained carbonized blast-furnace slag and fine-grained carbonized blast-furnace slag Carbonized blast furnace slag: primary crushing of coarse-grained carbonized blast-furnace slag, and crushing of coarse-grained carbonized blast-furnace slag into fine-grained carbonized blast-furnace slag; vertical milling of fine-grained carbonized blast-furnace slag. During the vertical milling process, the speed of the classifier is 100~130r/min, negative pressure fan speed 1000~1500r/min, grinding roller pressure 3~9MPa, return material 10%~60%. By rationally setting the parameters of technological processes such as water quenching, grading and screening, primary breaking, and vertical milling, the target section of carbonized blast furnace slag with a particle size of 100 to 450 mesh accounts for more than 65%, which improves the production capacity of carbonized blast furnace slag and reduces the production capacity of carbonized blast furnace slag. energy consumption.
Description
技术领域technical field
本发明属于磨矿技术领域，具体涉及一种立磨机、碳化高炉渣粉碎方法及系统。The invention belongs to the technical field of ore grinding, and in particular relates to a vertical mill, a carbonized blast furnace slag crushing method and a system.
背景技术Background technique
攀西钛资源丰富，经传统高炉炼铁-转炉炼钢工艺，大部分钛进入了高炉渣中，高炉渣中TiO2含量为20～26％，从攀钢建厂至今，已堆存高炉渣6500多万吨。针对攀钢高炉渣，国内许多研究机构曾开展了多种提钛技术路线的研究，比如制取硅钛复合合金、生产矿渣微晶玻璃等，但处理能力有限，不能从根本上解决含钛高炉渣的综合利用问题。目前，高钛型高炉渣“高温碳化-低温氯化制取TiCl4”的工艺路线是最具产业化前景的技术路线，工艺分为高温碳化、低温沸腾氯化和氯化残渣的利用三个步骤，具有流程短、处理量大、钛资源综合利用率高等优点。Panxi is rich in titanium resources. Through the traditional blast furnace ironmaking-converter steelmaking process, most of the titanium enters the blast furnace slag. The content of TiO 2 in the blast furnace slag is 20-26%. More than 65 million tons. Aiming at Panzhihua Iron and Steel's blast furnace slag, many domestic research institutions have carried out research on various technical routes for titanium extraction, such as the production of silicon-titanium composite alloys and the production of slag glass-ceramic, etc., but the processing capacity is limited and cannot fundamentally solve the problem of high titanium content Comprehensive utilization of slag. At present, the process route of high-titanium blast furnace slag "high temperature carbonization-low temperature chlorination to produce TiCl 4 " is the most promising technical route for industrialization. The process is divided into high temperature carbonization, low temperature boiling chlorination and utilization of chlorination residues. It has the advantages of short process, large processing capacity, and high comprehensive utilization rate of titanium resources.
碳化渣是高温碳化的产品，为满足低温氯化的要求，需要将其细磨至一定的粒度要求，且对特殊产品粒度段100～450目成品率要求达60％以上。传统工艺碳化渣出渣时采用渣盘接渣，空冷后再经过颚式破碎机粗破、对辊破碎、球磨等，处理流程长、劳动强度大，处理成本高，且成品率低，为此需要寻求新的、低成本制备碳化渣细粉的方法。Carbonized slag is a product of high-temperature carbonization. In order to meet the requirements of low-temperature chlorination, it needs to be finely ground to a certain particle size, and the yield of special products with a particle size of 100-450 mesh is required to reach more than 60%. The traditional process of carbonized slag discharge uses slag trays to catch the slag, and then passes through the jaw crusher for rough crushing, double-roll crushing, ball milling, etc. after air cooling, the processing process is long, labor-intensive, high processing cost, and low yield. It is necessary to find a new, low-cost method for preparing carbide slag fine powder.
发明内容Contents of the invention
本发明所要解决的技术问题是：提供一种能够提高碳化渣产品成品率、降低能耗的立磨机、碳化高炉渣粉碎方法及系统。The technical problem to be solved by the present invention is to provide a vertical mill, a carbonized blast furnace slag crushing method and a system that can increase the yield of carbide slag products and reduce energy consumption.
本发明解决其技术问题所采用的碳化高炉渣粉碎方法，包括如下步骤The method for pulverizing carbonized blast furnace slag adopted by the present invention to solve its technical problems comprises the following steps
S1、对碳化高炉渣进行水淬，获得5mm以下的粒状碳化高炉渣；S1. Water quenching the carbonized blast furnace slag to obtain granular carbonized blast furnace slag of less than 5mm;
S2、对粒状碳化高炉渣进行分级筛选，得到粗粒级碳化高炉渣和细粒级碳化高炉渣；S2. Classifying and screening the granular carbonized blast furnace slag to obtain coarse-grained carbonized blast-furnace slag and fine-grained carbonized blast-furnace slag;
S3、对粗粒级碳化高炉渣进行初破，将粗粒级碳化破碎成细粒级碳化高炉渣；S3. Carrying out primary crushing of the coarse-grained carbonized blast furnace slag, and breaking the coarse-grained carbonized blast furnace slag into fine-grained carbonized blast furnace slag;
S4、对细粒级碳化高炉渣进行立磨，立磨过程中，电机转速为100～130r/min、负压风机转速为1000～1500r/min、磨辊压力为3～9MPa，返料量为10％～60％；此步骤中所使用的立磨机具有定子叶片，所述定子叶片设置在转子叶片的周围。S4. Carry out vertical grinding for fine-grained carbonized blast furnace slag. During the vertical grinding process, the motor speed is 100-130r/min, the negative pressure fan speed is 1000-1500r/min, the grinding roller pressure is 3-9MPa, and the amount of returned material is 10% to 60%; the vertical mill used in this step has stator blades, and the stator blades are arranged around the rotor blades.
进一步的是，步骤S1中，水淬时，控制水压在0.2～0.6Mpa之间，控制电机的频率在30～50Hz之间。Further, in step S1, during water quenching, the water pressure is controlled between 0.2-0.6 Mpa, and the frequency of the motor is controlled between 30-50 Hz.
进一步的是，步骤S2中，粒径小于2～2.2mm的粒状碳化高炉渣为细粒级碳化高炉渣，其余粒状碳化高炉渣为粗粒级碳化高炉渣。Further, in step S2, the granular carbonized blast furnace slag with a particle diameter of less than 2-2.2 mm is fine-grained carbonized blast furnace slag, and the rest of the granular carbonized blast furnace slag is coarse-grained carbonized blast furnace slag.
进一步的是，步骤S3中，对粗粒级碳化高炉渣进行对辊破碎，控制辊缝间隙在2～2.2mm之间。Further, in step S3, the coarse-grained carbonized blast furnace slag is crushed by rollers, and the gap between the rollers is controlled to be between 2 mm and 2.2 mm.
本发明解决其技术问题所采用的立磨机，包括转子叶片，所述转子叶片设置在转轴上，其特征在于：还包括设置在转子叶片周围的定子叶片。The vertical mill adopted by the present invention to solve the technical problem includes rotor blades arranged on a rotating shaft, and is characterized in that it also includes stator blades arranged around the rotor blades.
进一步的是，所述定子叶片的横截面为S形。Further, the cross section of the stator blade is S-shaped.
进一步的是，所述定子叶片均匀地设置在所述转子叶片的周围。Further, the stator blades are evenly arranged around the rotor blades.
进一步的是，在所述转子叶片的周围设置有24组定子叶片。Further, 24 sets of stator blades are arranged around the rotor blades.
本发明解决其技术问题所采用的碳化高炉渣粉碎系统，包括水淬设备、分级筛选设备、初破设备和如上所述的立磨机，所述水淬设备的出料口对应所述分级筛选设备的进料口，所述分级筛选设备的出料口对应所述初破设备的进料口，所述初破设备的出料口对应所述立磨机的进料口。The carbonized blast furnace slag pulverization system adopted by the present invention to solve its technical problems includes water quenching equipment, classification and screening equipment, primary crushing equipment and the above-mentioned vertical mill, and the discharge port of the water quenching equipment corresponds to the classification and screening The feed port of the equipment, the discharge port of the classification and screening equipment corresponds to the feed port of the primary crushing equipment, and the discharge port of the primary crushing equipment corresponds to the feed port of the vertical mill.
进一步的是，所述分级筛选设备具有2～2.2mm的控制筛。Further, the grading and screening equipment has a control sieve of 2-2.2 mm.
本发明的有益效果是：通过合理设置水淬、分级筛选、初破、立磨等工艺流程的参数，实现了碳化高炉渣目标段产品粒度在100～450目占比达65％以上，该方法解决了碳化高炉渣采用传统球磨工艺过粉磨、产能低、能耗高的问题。The beneficial effects of the present invention are: by rationally setting the parameters of technological processes such as water quenching, grading and screening, primary breaking, and vertical milling, the proportion of products with a particle size of 100 to 450 mesh in the target section of carbonized blast furnace slag can reach more than 65%. It solves the problems of over-grinding carbonized blast furnace slag by traditional ball milling process, low production capacity and high energy consumption.
附图说明Description of drawings
图1是本发明涉及的立磨机的一个实施例的局部结构示意图；Fig. 1 is the partial structural representation of an embodiment of the vertical mill that the present invention relates to;
图2是图1中的定子叶片的一个实施例的横截面示意图；FIG. 2 is a schematic cross-sectional view of an embodiment of the stator blade in FIG. 1;
图3是本发明涉及的碳化高炉渣粉碎系统的一个实施例的结构示意图；Fig. 3 is a structural schematic diagram of an embodiment of the carbonized blast furnace slag crushing system involved in the present invention;
图中零部件、部位及编号：立磨机1、转子叶片11、转轴12、定子叶片13、水淬设备2、分级筛选设备3、初破设备4。Parts, parts and numbers in the figure: vertical mill 1, rotor blade 11, rotating shaft 12, stator blade 13, water quenching equipment 2, grading and screening equipment 3, primary crushing equipment 4.
具体实施方式Detailed ways
下面结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with accompanying drawing.
本发明的碳化高炉渣粉碎方法，包括如下步骤The method for pulverizing carbonized blast furnace slag of the present invention comprises the following steps
S1、对碳化高炉渣进行水淬，获得5mm以下的粒状碳化高炉渣；水淬过程中可以通过控制水压和水流速度得到一定粒径的碳化高炉渣；例如，为了获得5mm以下的粒状碳化高炉渣，可将水淬过程中的水压控制在0.2～0.6Mpa之间，水流速度通过控制电机的频率实现，此时可将电机的频率控制在30～50Hz之间，电机用于提供泵水的动力；S1. Carry out water quenching on carbonized blast furnace slag to obtain granular carbonized blast furnace slag below 5mm; during the water quenching process, carbonized blast furnace slag with a certain particle size can be obtained by controlling water pressure and water flow velocity; for example, in order to obtain granular carbonized blast furnace slag below 5mm The slag can control the water pressure in the water quenching process between 0.2 and 0.6Mpa, and the water flow speed can be realized by controlling the frequency of the motor. At this time, the frequency of the motor can be controlled between 30 and 50Hz, and the motor is used to provide pump water. motivation;
S2、对粒状碳化高炉渣进行分级筛选，得到粗粒级碳化高炉渣和细粒级碳化高炉渣；此处的粗细是相对步骤S1中得到的粒状碳化高炉渣而言，例如，如果规定粒径在2mm以下的粒状碳化高炉渣为细粒级碳化高炉渣，那么粒径大于2mm的粒状碳化高炉渣就为粗粒级碳化高炉渣；S2. Grading and screening the granular carbonized blast furnace slag to obtain coarse-grained carbonized blast-furnace slag and fine-grained carbonized blast-furnace slag; the thickness here is relative to the granular carbonized blast-furnace slag obtained in step S1. For example, if the particle size is specified Granular carbonized blast furnace slag below 2 mm is fine-grained carbonized blast furnace slag, and granular carbonized blast furnace slag with a particle size greater than 2 mm is coarse-grained carbonized blast furnace slag;
S3、对粗粒级碳化高炉渣进行初破，将粗粒级碳化破碎成细粒级碳化高炉渣；此步骤中，需要将步骤S2中筛选出来的粗粒级碳化高炉渣经过初破使其变成细粒级碳化高炉渣，以方便下一步骤中对所有的细粒级碳化高炉渣进行处理；S3. Carry out primary breaking of the coarse-grained carbonized blast furnace slag, and crush the coarse-grained carbonized blast furnace slag into fine-grained carbonized blast furnace slag; Become fine-grained carbonized blast furnace slag, so that all fine-grained carbonized blast furnace slags are processed in the next step;
S4、对细粒级碳化高炉渣进行立磨，立磨过程中，电机转速为100～130r/min、负压风机转速为1000～1500r/min、磨辊压力为3～9MPa，返料量为10％～60％；此步骤中所使用的立磨机具有定子叶片13，所述定子叶片13设置在转子叶片11的周围。通过设置定子叶片13，可以增加碳化高炉渣在立磨机中的选粉路径，从而可将碳化高炉渣充分粉碎。S4. Carry out vertical grinding for fine-grained carbonized blast furnace slag. During the vertical grinding process, the motor speed is 100-130r/min, the negative pressure fan speed is 1000-1500r/min, the grinding roller pressure is 3-9MPa, and the amount of returned material is 10% to 60%; the vertical mill used in this step has stator blades 13 arranged around the rotor blades 11 . By arranging the stator blades 13, the powder selection path of the carbonized blast furnace slag in the vertical mill can be increased, so that the carbonized blast furnace slag can be fully pulverized.
本发明的碳化高炉渣粉碎方法通过合理设置水淬、分级筛选、初破、立磨等工艺流程的参数，实现了碳化高炉渣目标段产品粒度在100～450目占比达65％以上，该方法解决了碳化高炉渣采用传统球磨工艺过粉磨、产能低、能耗高的问题。The carbonized blast furnace slag pulverization method of the present invention realizes that the particle size of the carbonized blast furnace slag in the target section of the target section is 100-450 mesh and accounts for more than 65% by rationally setting the parameters of the technological process such as water quenching, grading and screening, primary breaking, and vertical milling. The method solves the problems of over-grinding carbonized blast furnace slag by traditional ball milling process, low production capacity and high energy consumption.
具体，步骤S2中，对碳化高炉渣进行分级筛选时，可以选择粒径小于2～2.2mm的粒状碳化高炉渣为细粒级碳化高炉渣，其余粒状碳化高炉渣为粗粒级碳化高炉渣。优选的，粒径小于2mm的粒状碳化高炉渣为细粒级碳化高炉渣，其余粒状碳化高炉渣为粗粒级碳化高炉渣。将细粒级碳化高炉渣的粒径限制在一定范围以下可以使其在步骤S4的立磨过程中的选粉效率。Specifically, in step S2, when the carbonized blast furnace slag is classified and screened, the granular carbonized blast furnace slag with a particle size of less than 2-2.2 mm can be selected as the fine-grained carbonized blast furnace slag, and the rest of the granular carbonized blast furnace slag can be selected as the coarse-grained carbonized blast furnace slag. Preferably, the granular carbonized blast furnace slag with a particle diameter of less than 2 mm is fine-grained carbonized blast furnace slag, and the rest of the granular carbonized blast furnace slag is coarse-grained carbonized blast furnace slag. Limiting the particle size of the fine-grained carbonized blast furnace slag below a certain range can improve the powder selection efficiency in the vertical milling process in step S4.
相应地，为了使步骤S3的初破工艺能够将粗粒级碳化高炉渣研磨成细粒级碳化高炉渣，对筛选出来的粗粒级碳化高炉渣进行对辊破碎，控制辊缝间隙在2～2.2mm之间。Correspondingly, in order to enable the primary crushing process in step S3 to grind the coarse-grained carbonized blast furnace slag into fine-grained carbonized blast furnace slag, the screened coarse-grained carbonized blast furnace slag is crushed with rollers, and the gap between the rolls is controlled to be between 2 and Between 2.2mm.
如图1和图2所示，本发明的立磨机，包括转子叶片11，所述转子叶片11设置在转轴12上，还包括定子叶片13，所述定子叶片12的横截面为S形。S形的定子叶片13可以增加碳化高炉渣在立磨机中的选粉路径，从而可将碳化高炉渣充分粉碎。原立磨机转子叶片11随轴承一起旋转，旋转速度可调，具备动态选粉供能；改造后，增加了定子叶片13，定子叶片13不随立磨机转动，立磨机转子叶片11随立磨机一起转动，转速可调，实现“动-静”结合选粉，增加了粗颗粒物料的阻挡率，减少粗颗粒物料的通过率。当然，定子叶片12也可以是其他能够增加选分路径的曲面形状。As shown in FIG. 1 and FIG. 2 , the vertical mill of the present invention includes rotor blades 11 arranged on a rotating shaft 12 and stator blades 13 whose cross section is S-shaped. The S-shaped stator blades 13 can increase the powder selection path of the carbonized blast furnace slag in the vertical mill, so that the carbonized blast furnace slag can be fully pulverized. The rotor blade 11 of the original vertical mill rotates with the bearing, the rotation speed is adjustable, and it has dynamic powder selection and energy supply; after the transformation, the stator blade 13 is added, the stator blade 13 does not rotate with the vertical mill, and the The mill rotates together and the speed can be adjusted to realize "dynamic-static" combined powder selection, which increases the blocking rate of coarse particle materials and reduces the passing rate of coarse particle materials. Certainly, the stator vanes 12 may also have other curved shapes that can increase the separation path.
具体，为了进一步提高立磨机对碳化高炉渣的粉碎效率，所述定子叶片12均匀地设置在所述转子叶片11的周围。具体的，在所述转子叶片11的周围设置有24组定子叶片12。Specifically, in order to further improve the crushing efficiency of the carbonized blast furnace slag by the vertical mill, the stator blades 12 are evenly arranged around the rotor blades 11 . Specifically, 24 sets of stator blades 12 are arranged around the rotor blades 11 .
如图3所示，本发明的碳化高炉渣粉碎系统，包括水淬设备2、分级筛选设备3、初破设备4和如上所述的立磨机1，所述水淬设备2的出料口对应所述分级筛选设备3的进料口，所述分级筛选设备3的出料口对应所述初破设备4的进料口，所述初破设备4的出料口对应所述立磨机1的进料口。水淬设备2用于对碳化高炉渣进行水淬，得到初步破碎的粒状碳化高炉渣；分级筛选设备3用于对水淬得到的粒状碳化高炉渣进行分级筛选，筛选出粗粒级碳化高炉渣和细粒级碳化高炉渣；初破设备4用于对粗粒级碳化高炉渣进行破碎，使其变成细粒级碳化高炉渣；立磨机1用于对所有细粒级碳化高炉渣进行破碎选粉。此系统用于破碎碳化高炉渣时，可以提高碳化高炉渣目标段产品粒度在100～450目的占比。As shown in Figure 3, the carbonized blast furnace slag crushing system of the present invention includes water quenching equipment 2, classification and screening equipment 3, primary crushing equipment 4 and the above-mentioned vertical mill 1, and the discharge port of the water quenching equipment 2 Corresponding to the feed inlet of the classification screening equipment 3, the discharge opening of the classification screening equipment 3 corresponds to the feed inlet of the primary breaking equipment 4, and the discharge opening of the primary breaking equipment 4 corresponds to the vertical mill 1 feed port. The water quenching equipment 2 is used for water quenching carbonized blast furnace slag to obtain preliminary broken granular carbonized blast furnace slag; the classification and screening equipment 3 is used for grading and screening the granular carbonized blast furnace slag obtained by water quenching to screen out coarse-grained carbonized blast furnace slag and fine-grained carbonized blast furnace slag; primary crushing equipment 4 is used to crush coarse-grained carbonized blast-furnace slag to make it into fine-grained carbonized blast-furnace slag; vertical mill 1 is used to crush all fine-grained carbonized blast-furnace slag Crushed and selected powder. When this system is used for crushing carbonized blast furnace slag, it can increase the proportion of products with a particle size of 100-450 mesh in the target section of carbonized blast furnace slag.
具体，所述分级筛选设备3具有2～2.2mm的控制筛。这种控制筛具有直径为2～2.2mm的筛孔，使粒径在2～2.2mm以下的碳化高炉渣通过，从而筛分出粗粒级碳化高炉渣和细粒级碳化高炉渣。Specifically, the grading and screening equipment 3 has a control screen of 2-2.2 mm. The control sieve has sieve holes with a diameter of 2-2.2 mm, through which carbonized blast furnace slag with a particle size of 2-2.2 mm or less passes through, thereby screening out coarse-grained carbonized blast-furnace slag and fine-grained carbonized blast-furnace slag.
由于碳化高炉渣中残留的TiC具有较高的硬度，普通的破碎系统并不能实现对碳化高炉渣的破碎或者对碳化高炉渣的破碎效率不高，不能满足对成品粒度的要求。Due to the high hardness of residual TiC in carbonized blast furnace slag, ordinary crushing systems cannot realize the crushing of carbonized blast furnace slag or the crushing efficiency of carbonized blast furnace slag is not high, and cannot meet the requirements for the particle size of the finished product.
实施例Example
在某次生产中得到通过水淬得到小于5mm的碳化高炉渣200吨，通过分级筛选得到小于2mm的碳化高炉渣约120吨，2mm～5mm的碳化高炉渣约80吨。调整对辊辊缝间隙为2mm，将80吨的2～5mm碳化高炉渣破碎至2mm以下。将2mm以下的200吨碳化高炉渣装入立磨机料仓，调整立磨机磨辊压力为6MPa，负压风机转速为1250r/min，电机转速115r/min，开始生产后通过调节进料速度控制返料量为35％。在此工艺参数条件下得到碳化高炉渣目标段产品粒度在100～450目的占比达到65％，相比传统的球磨工艺提高80％，能耗降低约20％。In a certain production, 200 tons of carbonized blast furnace slag smaller than 5 mm were obtained through water quenching, about 120 tons of carbonized blast furnace slag smaller than 2 mm were obtained through classification and screening, and about 80 tons of carbonized blast furnace slag of 2 mm to 5 mm were obtained. Adjust the gap between the rollers to 2mm, and crush 80 tons of 2-5mm carbonized blast furnace slag to less than 2mm. Put 200 tons of carbonized blast furnace slag below 2 mm into the silo of the vertical mill, adjust the roller pressure of the vertical mill to 6MPa, the speed of the negative pressure fan to 1250r/min, and the speed of the motor to 115r/min. After starting production, adjust the feeding speed The amount of control return is 35%. Under the conditions of these process parameters, the product particle size of the carbonized blast furnace slag in the target section is 100-450 mesh, accounting for 65%, which is 80% higher than the traditional ball milling process, and the energy consumption is reduced by about 20%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174318A (en) * | 2018-08-30 | 2019-01-11 | 攀钢集团攀枝花钢铁研究院有限公司 | The method that clinker containing titanium carbide removes iron |
| CN112774984A (en) * | 2021-02-07 | 2021-05-11 | 南京西普水泥工程集团有限公司 | Rotating cage structure of combined powder concentrator rotor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2488589Y (en) * | 2001-07-20 | 2002-05-01 | 北京圆海正粉体技术有限公司 | A new type Ramon grinder for processing microfine powder |
| CN1803303A (en) * | 2006-01-24 | 2006-07-19 | 庞德明 | Dry-type centrifugal ore dressing machine |
| CN1803297A (en) * | 2006-01-24 | 2006-07-19 | 庞德明 | Compound type regrind mill |
| CN2889504Y (en) * | 2006-01-24 | 2007-04-18 | 庞德明 | Dry type centrifugal concentrating machine |
| CN202621230U (en) * | 2012-02-13 | 2012-12-26 | 宇部兴产机械株式会社 | Vertical grinder |
| CN104058609A (en) * | 2014-05-30 | 2014-09-24 | 马钢(集团)控股有限公司 | Production method of steel slag composite micropowder |
| CN205517995U (en) * | 2016-03-22 | 2016-08-31 | 中材装备集团有限公司 | Novel vertical roller mill with mechanism is derived outward to crocus |
| CN106269173A (en) * | 2016-10-09 | 2017-01-04 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of breaking method of carbide slag |
-
2018
- 2018-03-06 CN CN201810183396.6A patent/CN108405076A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2488589Y (en) * | 2001-07-20 | 2002-05-01 | 北京圆海正粉体技术有限公司 | A new type Ramon grinder for processing microfine powder |
| CN1803303A (en) * | 2006-01-24 | 2006-07-19 | 庞德明 | Dry-type centrifugal ore dressing machine |
| CN1803297A (en) * | 2006-01-24 | 2006-07-19 | 庞德明 | Compound type regrind mill |
| CN2889504Y (en) * | 2006-01-24 | 2007-04-18 | 庞德明 | Dry type centrifugal concentrating machine |
| CN202621230U (en) * | 2012-02-13 | 2012-12-26 | 宇部兴产机械株式会社 | Vertical grinder |
| CN104058609A (en) * | 2014-05-30 | 2014-09-24 | 马钢(集团)控股有限公司 | Production method of steel slag composite micropowder |
| CN205517995U (en) * | 2016-03-22 | 2016-08-31 | 中材装备集团有限公司 | Novel vertical roller mill with mechanism is derived outward to crocus |
| CN106269173A (en) * | 2016-10-09 | 2017-01-04 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of breaking method of carbide slag |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174318A (en) * | 2018-08-30 | 2019-01-11 | 攀钢集团攀枝花钢铁研究院有限公司 | The method that clinker containing titanium carbide removes iron |
| CN112774984A (en) * | 2021-02-07 | 2021-05-11 | 南京西普水泥工程集团有限公司 | Rotating cage structure of combined powder concentrator rotor |
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