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发布时间: 2015 - 11 - 04
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发布时间: 2015 - 11 - 04
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发布时间: 2015 - 11 - 16
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发布时间: 2015 - 11 - 16
Honeycombed roller shell characteristics:1.Honeycombed roller shell is mainly applied to pelletize poultry feeds. The advantage is that it is uniform wearing,but has bad material intake performance. Large frictional force makes easy polishing.2.Material: Alloy steel, spring steel and bearing steel.3.Special thermal treatment ensures better wear resisting, and pelletizing performance.4.Long working life Roller shell, commonly known as roller, is one of the main parts of pellet mill. It can be used to process various biofuel pellets, animal feed and other pellets.Now we have the roller shells of different shapes, such as:closed-end grooved roller shell, honeycombed roller shell, drum-hole groove roller, open-end grooved roller shell, deflective-grooved roller shell etc.FDSP can manufact...
News Service

Proper installation

Date: 2015-12-08
浏览次数: 605
Source: 网络

 

Ring die is the key component of a pellet mill, but it is also the quick wear part. So proper installation, usage and maintain of ring dies play an important role to pellet mill efficiency and ring die working life. Following are some requirements for proper installation of ring dies (see Figure 1):

For normal operation, ring die (3), hoop (4), and driving wheel (7) are connected and fastened by hoop bolt without any relative movement. However, in practical use, some causes will result to relative move, like the bevel of hoop and driving wheel wears or hoop bolt loosens. Especially when roller shell works, ring die will vibrate cause of strong squeezing force. Seriously ring die will crack or inner holes wear, then hoop and driving wheel break, which directly influences production efficiency or even leads to fault shutdown.

 

Methods to prevent the above problems:

1. Ring die gasket shall be checked every week, so as to avoid excessive gap between ring die and gasket or driving wheel, because excessive gap makes ring die droop and strike roller shell.

2. After each installation or adjustment, component position in the following figure shall be checked to make sure certain gap between each hoop and three points in the figure.

3. After 30 minutes of normal operation, the machine shall be stopped and hoop bolt shall be fastened.

4. After each installation, roller shell shall be checked to be between two process tanks, or adjustable pad shall be applied (adjustable pad shall be installed between roller shaft and pressing plate or main shaft).

5. After complete installation of roller shell, axial clearance between roller shell and ring die shall be checked to be no more than 0.3mm, or adjustable pad shall be applied.

6. Inferior ring die is not allowed. Inner ring die working surface out of round shall be not more than 0.20mm, and roller shell gaps shall be uniform.

 

图片1.png

                                                                       Figure 1  assembly structure of ring die

 

1.roller shaft   2. Roller shell    3.ring die   4.hoop   5.hoop bolt   6. Ring die gasket  7.driving wheel  8. Hollow shaft  9.mainshaft bearing

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News / Recommended by the news
2015 - 12 - 08
点击次数: 605
Ring die is the key component of a pellet mill, but it is also the quick wear part. So proper installation, usage and maintain of ring dies play an important role to pellet mill efficiency and ring di...
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  • 点击次数: 605
    2015 - 12 - 08
    Ring die is the key component of a pellet mill, but it is also the quick wear part. So proper installation, usage and maintain of ring dies play an important role to pellet mill efficiency and ring die working life. Following are some requirements for proper installation of ring dies (see Figure 1):For normal operation, ring die (3), hoop (4), and driving wheel (7) are connected and fastened by hoop bolt without any relative movement. However, in practical use, some causes will result to relative move, like the bevel of hoop and driving wheel wears or hoop bolt loosens. Especially when roller shell works, ring die will vibrate cause of strong squeezing force. Seriously ring die will crack or inner holes wear, then hoop and driving wheel break, which directly influences production efficienc...
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