Specifications

Same size of inlet and outlet with square or round shape
Outboard bearing design
Direct-attached transmission

Brief Instruction of  Rotary  air lock feeder

Rotary  air  lock  feeder  is an important device for pneumatic conveying and dust removal. The main usage of  rotary  air lock  feeder  is to timely and constantly unload the material from discharger or dust collector, and to prevent the outside air from entering the discharger or dust collector.Rotary  air  lock  feeder  can handle materials in powder, pellet, flake shapes and also fiber materials. And at the same time, rotary  air  lock  feeder  is widely used in rice milling, powder, animal feed, machinery, chemical engineering, medicine, tobacco, metallurgy and cement making, dust removal and many other industries.

Structure and Working principle of  Rotary   air  lock  feeder

This  rotary  air  lock  feeder  is a kind of improved  impeller open type  rotary  air  lock  feeder .  It is a discharging machine structured with impeller, bearing, oil seal, air lock shell, end cover and other spare parts. On the top of  the  rotary  air lock  feeder  there is flange connected with the unload opening of discharger to receive the material from discharger, and then unload material from the bottom of  rotary  air  lock  feeder  while impeller rotating. The impeller is open type, which can prevent material from blocking as well as reduce air lock weight and shape.

 

 

 

Model Selection for Rotary  air  lock  feeder  and Using Form

Model selection basis for  rotary  air  lock  feeder :

1. Material granularity (powder or granule);

2. Material viscosity(water or other liquids included);

3. Material pH value(may select common material or stainless steel with different properties);

4. Material temperature(select external type air lock above 60°C);

5. Material handling capacity(Theoretical calculation of volume×1.2).

Using form for  rotary  air  lock  feeder:

Independent work by single  rotary  air  lock ( transmission by belt, chain or direct coupling), multi-machine series and in parallel. No more than 5  rotary  air  lock  feeder  in one unit when working by multi-machine in series or in parallel. The length of tandem shaft coupling and the height of bracket can be decided by users.

Installation and Use for Rotary  air lock  feeder

Before installation  rotary  air  lock  feeder  must be carefully examined to make sure the impeller rotates flexibly and that relevant connecting parts reliable and correct. Then  fix  the  rotary  air  lock  feeder  on the floor or the bracket. Add full oil according to the using instructions if there is a reducer (3# Lithium-based lubricant). If a combination of  rotary  air  lock  feeder are used, there must be overload and short-circuit protection devices in order to prevent the damage of motor.

Before feeding, rotary  air  lock  feeder  with separate power must be turned on before host machine, while  rotary  air  lock  feeder  without separate power should be turned on with host machine at the same time. And  rotary  air  lock  feeder should be shut down after discharging of raw material.

Always pay attention to the observing window to see whether material flow is normal or not while running  the  rotary  air  lock  feeder . Timely treatment if accumulation.

Daily Maintenance and Repair for Rotary  air lock  feeder

1. Lubrication

While installation of  reducer  for  rotary  air  lock  feeder driving, the added lubricant should be fully unloaded one month later and add the new lubricant. Regular check for oil level keep. Lubrication  for  rotary  air  lock  feeder  bearings can be done when equipment maintenance.

2. Lutation

Both ends of the viewing window of  rotary  air  lock  feeder  are U type rubber sealing rings, and they should be replaced immediately if damaged.

Oil seal is for the lutation of impeller shaft and end cover, which should be always checked. It should be replaced immediately if damage, otherwise the material will enter into the rolling bearing and thus cause bearing damage. Users are advised to choose  rotary  air  lock  feeder  with double oil seal and discharge opening.

Lutation between impeller and air lock shell is the key point of  rotary  air  lock  feeder . If  the other place does not  leak  but material accumulation happens, it is mostly because of the abrasion between the impeller outer diameter and the inside holes of the device shell. In this caseusers shouldreplace immediately.

3. Teardown and Maintenance      

Correct  methods  for  rotary  air  lock  feeder  teardown:

1. Tear down by bolt;

2. Tear down by hammer. Remember to put copper bar or wood blocks on spindle head or end cover when teardown.

When replacing, first clean the end cover, then  fit  the machine with the same specifications  of  the oil seal and bearing. There must be full lubricating oil.