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RFEF系列二次分級機

RFEF SERIES QUADRATIC CLASSIFIER

RFEF系列二次分級機，是營口瑞豐粉體設(shè)備有限公司采用成熟的分級技術(shù)，結(jié)合本公司生產(chǎn)配套的RFLM系列細(xì)粉立磨分級技術(shù)，解決目前普通分級機分級效果差、產(chǎn)量低等問題。本系列二次分級，可分選1.5~30μm，2μm含量可達(dá)90%。

RFEF series secondary classifier

 RFEF SERIES QUADRATIC CLASSIFIER

RFEF series secondary classifier is Yingkou Ruifeng powder equipment co., Ltd. Adopts mature classification technology, combined with the matching RFLM series fine powder vertical mill classification technology produced by our company, To solve the current ordinary classifier classification effect is poor, low output and other problems. This series can be divided into 1.530 μ m ~ 2 μ m and can reach 90 μ m.

工作原理

進(jìn)料螺旋輸送機將儲存于原料倉的粉體物料，用電腦控制以固定的流量進(jìn)入進(jìn)料管，而在進(jìn)入分級機前，粉體物料會與風(fēng)機的主氣流充分混合，充滿物料的主氣流先進(jìn)入分級機下部的蝸殼，運用蝸殼結(jié)構(gòu)將進(jìn)入蝸殼的氣流改變運動方向，形成漩渦，在漩渦力的作用下，使進(jìn)入下殼體的主氣流變成螺旋上升氣流，在離心力的作用下對粉體物料進(jìn)行預(yù)分級，較粗顆粒粉體會先行分出，沒有進(jìn)入下殼體而從分級機底部落下的粗顆粒粉體，即為分級后的下品。

次氣流則由下殼體的下方吸入，并且粗粉中再選出剩余的細(xì)粉。其余的含更細(xì)粉體的氣流則被帶入后分級區(qū)，分級出口裝有3個或者多個分級輪的自動分級機進(jìn)行選粉工作。粉體在此分級區(qū)中，收到離心力、流體阻力、以及自身的重力作用下，大于分級輪收束點的粉體則會被送回下殼體，小于收束點的粉體則隨著氣流帶出分級機，風(fēng)機將氣體中的細(xì)粉自分級機帶出，經(jīng)脈沖式除塵器收集為成品，部分氣體會從設(shè)備的排風(fēng)管中排出進(jìn)入大氣，其余空氣則被循環(huán)使用作為主氣流，以維持整個分級系統(tǒng)可以正常運行。由脈沖式除塵器收集的細(xì)粉，及下殼體中的粗粉，會通過氣力輸送系統(tǒng)，根據(jù)其產(chǎn)品細(xì)度而運送到指定的不同的成品倉中，成品倉下方放置包裝機進(jìn)行包裝。

Working principle the feed screw conveyer will store the powder material in the raw material bin, use the computer control to enter the feed tube with the fixed flow rate, and before entering the classifier, the powder material will be fully mixed with the main airflow of the fan. The main airflow filled with materials first enters the volute of the lower part of the classifier. The structure of the volute changes the movement direction of the flow into the volute and forms a whirlpool. Under the action of the whirlpool force, the main airflow entering the lower shell becomes a spiral upward flow. Under the action of centrifugal force, the coarse particle powder will be separated out first, and the coarse particle powder falling from the bottom of the classifier without entering the lower shell, that is, the coarse particle powder after the classification. The secondary air is inhaled from the bottom of the lower shell, and the remaining fine powder is selected from the coarse powder. The other airflow with finer powder was brought into the rear classification area, and the automatic classifier with three or more classifying wheels was installed at the outlet for powder sorting. In this classification region, when the centrifugal force, fluid resistance, and its own gravity are received, the powder larger than the bunching point of the classifier wheel will be sent back to the lower shell, and the powder smaller than the beam point will be brought out of the classifier with the flow of air. The fan takes the fine powder in the gas out of the classifier, and the meridian pulse scrubber is collected as the finished product. Some of the gas will be discharged into the atmosphere from the exhaust pipe of the equipment, and the rest of the air will be recycled as the main airflow. To maintain the entire grading system to work properly. The fine powder collected by the pulse dust collector and the coarse powder in the lower shell are transported to different finished product warehouses according to the fineness of the product through the pneumatic conveying system, and the packaging machine is placed under the finished product bin.

性能優(yōu)勢

1.    均勻的粒徑分布?？筛鶕?jù)所要求的收束點，調(diào)節(jié)控制，保持很窄的粒徑分布。

2.    產(chǎn)品穩(wěn)定，連續(xù)可靠。通過變頻調(diào)節(jié)分級輪轉(zhuǎn)速或調(diào)節(jié)風(fēng)閥開度可任意調(diào)節(jié)產(chǎn)品細(xì)度，產(chǎn)品品種的調(diào)節(jié)方便簡單，連續(xù)穩(wěn)定。

3.    可大規(guī)模工業(yè)化分級生產(chǎn)，采用強力渦流分級設(shè)計，分級葉輪水平放置，多分級輪機構(gòu)設(shè)計，更加適合400-8000目微粉大規(guī)模工業(yè)化分級生產(chǎn)。

4.    可設(shè)立獨立的分級系統(tǒng)，單獨使用。適合直連各類磨粉設(shè)備（如超細(xì)立磨機、球磨機、振動磨、氣流磨、沖擊磨、攪拌磨等），聯(lián)合組成閉路連續(xù)超細(xì)粉體生產(chǎn)系統(tǒng)。

5.    全套分級系統(tǒng)，均采用PLC觸屏智能化控制，可實現(xiàn)實時顯示，參數(shù)、指標(biāo)、溫度、產(chǎn)量、細(xì)度等，并可做到可調(diào)可控。由于我公司技術(shù)成熟，可實現(xiàn)與RFLM系列超細(xì)立磨機**銜接，也可獨立成為一套中控系統(tǒng)。

Performance advantage

1. Uniform particle size distribution. According to the required collection point, the control can be adjusted to maintain a narrow particle size distribution.

2. The product is stable, continuous and reliable. The product fineness can be adjusted arbitrarily by adjusting the speed of the classifier wheel or the opening degree of the air valve by frequency conversion. The adjustment of the product variety is convenient and simple, and the product is continuous and stable.

 3. It can be used for large-scale industrial grading production. It is more suitable for large-scale industrial classification production of 400-8000 mesh micro-powder by using powerful eddy current classification design, horizontal placement of classifying impeller, and design of multi-classifying wheel mechanism.

4. A separate grading system can be set up for separate use. Suitable for all kinds of grinding equipment (such as superfine vertical mill, ball mill, vibration mill, airflow mill, impact mill, agitation mill, etc.) and combine to form closed circuit continuous ultrafine powder production system.

 5. The whole classification system adopts PLC touch screen intelligent control, which can realize real-time display, parameter, index, temperature, output, fineness and so on, and can be adjustable and controllable. Because of the mature technology of our company, we can realize perfect connection with RFLM series superfine vertical mill, and can also become a set of central control system independently.