Oil extrusion extruder operation and maintenance

1. Check to make sure the inside of the puffing machine is clean and free of any debris. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

2. Check that the tapered piston is at the most distal position and the opening is the largest. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

3, open the steam injection valve (pressure 0.2-0.3Mpa) to preheat the puffing barrel until the temperature rises to >60 ° C. dtW China Feed Industry Information Network - based on feed, service animal husbandry

4. Turn off the steam injection valve and start the main motor. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

5. The feed auger is opened, the material is put into the puffing barrel, the steam injection valve is opened, and the taper plug is adjusted to obtain a qualified product. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

6. Once the product reaches the required output, do not arbitrarily change the amount of dry material added and the amount of steam. The load of the motor should be stable. The temperature inside the barrel should also reach an equilibrium temperature (about 15-20 minutes). dtW China Feed Industry Information Network - based on feed, serving animal husbandry

7, usually the expansion of the cylinder temperature reading 105 ° C ~ 115 ° C, adjust the amount of steam and production to obtain the best internal loose porous products. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

8. Proportionally increase the amount of steam to maintain a qualified product and prevent the main motor load from exceeding the rated current of the motor. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

9. During the day's operation, or during long-term operation, the feed of materials should be uniform and stable. The uniform rate is one of the most fundamental factors for stable operation in the extruder. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

The added materials should be constant in composition, particle size, humidity and temperature. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

10. The steam enters the extruder barrel directly through the injection valve and enters the material. The steam pressure should be constant, usually 0.6 to 0.7.5 MPa in the extruder. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

11. The input control of the steam flow is achieved by a manual steam injection valve. Manual control of the steam injection valve is determined by the number of revolutions of the opening during the starting process. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

12. Motor power consumption depends on how much the motor pushes the material through the extruder. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

The motor load can be increased by the following methods. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

A. Increase the amount of feed. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

B. Make the gap of the taper pin plug of the discharge port small. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

C. Working under low humidity conditions. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

13. The puffing temperature can be increased by the heat generated by the shaft friction and the jet steam. The temperature increase can be achieved by: dtW China Feed Industry Information Network - Based on feed, serving animal husbandry

A. Spray more steam. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

B. Make the taper gap of the discharge port smaller. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

14, the operation of hydraulic taper plug: dtW China feed industry information network - based on feed, service animal husbandry

A. The taper plug is at the farthest end when starting, and the discharge opening is the largest. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

B. After the main motor starts, the material enters the puffing barrel. Open the steam valve, start the cone plug hydraulic system motor, pull the manual reversing valve to the forward position, observe the material thickness and motor current reading to make it meet the standard (the output is proportional to the motor current, motor current and cone The plug opening is inversely proportional). Then pull the manual reversing valve handle to the middle position and cut off the hydraulic motor power. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

C. In the production process, the taper of the taper plug is adjusted at any time according to the size of the material, and the adjustment method is the same as (B). dtW China Feed Industry Information Network - based on feed, serving animal husbandry

D. Parking operation: first close the feeding insert, open the taper plug, close the steam, the material is finished from the puffing cylinder, cut off the hydraulic system power supply, and turn off the main motor power. dtW China Feed Industry Information Network - based on feed, serving animal husbandry

Stop at stop and stop feeding. After the feed conveyor stops feeding the extruder, the extruder is allowed to continue to vent the material in the machine. Retract the taper plug to the maximum. dtW China Feed Industry Information Network - based on feed, serving animal husbandry