气力输送中旋转供料器应该如何选择？

How to select the rotary feeder in pneumatic conveying?

众所周知，旋转供料器是气力输送系统中必不可少的部件。今天，小编给大家分享下旋转供料器的选择和维护知识。

As we all know, rotary feeder is an essential component in pneumatic conveying system. Today, Xiaobian will share with you the selection and maintenance knowledge of rotary feeder.

1.关于旋转转供料器

1. About rotary feeder

转供料器，又称回转阀和星形给料机，主要由主阀、减速器、保护装置、排气口等组成。它是输送散装物料的主要设备。主阀由转子、壳体、端盖、叶轮、轴承、油封、集气管等组成。广泛应用于化工、环保、石油、冶金、电力、水泥、塑料、粮食等行业的粉体输送。

Rotary feeder, also known as rotary valve and star feeder, is mainly composed of main valve, reducer, protection device, exhaust port, etc. It is the main equipment for transporting bulk materials. The main valve is composed of rotor, shell, end cover, impeller, bearing, oil seal, gas collector, etc. It is widely used in powder transportation in chemical industry, environmental protection, petroleum, metallurgy, electric power, cement, plastics, grain and other industries.

2.材料选择

2. Material selection

转供料器的材料类型有不锈钢、碳钢、耐磨陶瓷等。对于耐磨性强的材料，选材通常需要具有耐磨的特点。你可以根据你的实际工作条件选择合适材料的转供料器。

The material types of the transfer feeder include stainless steel, carbon steel, wear-resistant ceramics, etc. For materials with strong wear resistance, material selection usually needs to have the characteristics of wear resistance. You can choose the appropriate material feeder according to your actual working conditions.

3.结构类型

3. Structure type

根据转子结构的类型，转供料器可分为P型螺旋转供料器和V型螺旋转供料器。不同材料的不同结构类型对于顺利交付非常重要。旋转转供料器的上侧通常装有抽气室，抽气室的主要功能是防止下方气流串起来，降低下料能力。转供料器下面是加速室，加速室的气源是各种风扇或压缩机。

According to the type of rotor structure, the rotary feeder can be divided into p-type spiral rotary feeder and V-type spiral rotary feeder. Different structural types of different materials are very important for smooth delivery. The upper side of the rotary feeder is usually equipped with an air extraction chamber. The main function of the air extraction chamber is to prevent the lower air flow from stringing up and reduce the blanking capacity. Below the transfer feeder is the acceleration chamber, and the air source of the acceleration chamber is various fans or compressors.

4.维护和保养

4. Maintenance

转供料器一般处于长期连续工作状态，这就需要良好的维护和保养措施。

The transfer feeder is generally in a long-term continuous working state, which requires good maintenance and maintenance measures.

1、润滑油更换，如果运行温度低于60，可每3~4个月更换一次；当工作温度高于60时，换油周期应适当缩短。

1. Replace the lubricating oil. If the operating temperature is lower than 60, replace it every 3 ~ 4 months; When the working temperature is higher than 60, the oil change cycle shall be shortened appropriately.

2.定期向旋转转供料器链轮添加润滑油。

2. Regularly add lubricating oil to the rotary feeder sprocket.

3.在长时间的工作条件下，链条会被拉伸和延长，因此在必要时，应调整电机和给料机之间的距离，以确保滚子链在工作过程中不会脱落。

3. Under long-time working conditions, the chain will be stretched and extended. Therefore, if necessary, adjust the distance between the motor and the feeder to ensure that the roller chain will not fall off during operation.

4.受使用时间的影响，链条拉伸变形，链轮磨损过大，无法通过调整距离来保证工作。

4. Due to the influence of service time, the chain is stretched and deformed, and the sprocket is worn too much, so it is impossible to ensure the work by adjusting the distance.

5.可调刀片出厂前已调整好，长期使用可根据需要调整。

5. The adjustable blade has been adjusted before delivery, and can be adjusted as needed for long-term use.

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